{"id":2722,"date":"2015-04-06T08:53:04","date_gmt":"2015-04-06T08:53:04","guid":{"rendered":"https:\/\/wordpress-404703-1946962.cloudwaysapps.com.php72-35.phx1-2.websitetestlink.com\/?p=2722"},"modified":"2026-05-28T12:43:04","modified_gmt":"2026-05-28T12:43:04","slug":"paperboard-material-in-folding-carton","status":"publish","type":"post","link":"https:\/\/www.netpak.com\/en\/packaging-resources\/industry-articles\/paperboard-material-in-folding-carton\/","title":{"rendered":"Paperboard material selection for folding carton packaging"},"content":{"rendered":"<div>\n<p>    <!-- NETPAK BLOG --><br \/>\n<!-- Topic: Paperboard Material in Folding Carton Packaging --><br \/>\n<!-- Revamped SEO article with sources and Netpak positioning --><\/p>\n<link href=\"https:\/\/fonts.googleapis.com\/css2?family=Montserrat:wght@400;500;600;700;800&#038;display=swap\" rel=\"stylesheet\">\n<style>\n:root{\n  --npk-blue:#1e3876;\n  --npk-blue-2:#2d4e9c;\n  --npk-blue-dark:#112652;\n  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margin-top:20px;\n  padding:11px 17px;\n  border-radius:999px;\n  color:#fff !important;\n  background:var(--npk-blue-dark);\n  font-size:13px;\n  line-height:1;\n  font-weight:800;\n  text-decoration:none !important;\n  box-shadow:0 10px 22px rgba(17,38,82,.18);\n  transition:transform .2s ease, box-shadow .2s ease, background .2s ease;\n}<\/p>\n<p>.npk-related-card:hover .npk-card__link,\n.npk-related-card:focus .npk-card__link{\n  color:#fff !important;\n  background:linear-gradient(135deg,#10285f 0%,#234b9d 72%,#2d5ab8 100%);\n  transform:translateY(-2px);\n  box-shadow:0 14px 30px rgba(17,38,82,.24);\n}<\/p>\n<p>@media(max-width:1024px){\n  .npk-related-card .npk-card__image img{\n    height:170px;\n  }\n}<\/p>\n<p>@media(max-width:760px){\n  .npk-related-card .npk-card__image img{\n    height:210px;\n  }<\/p>\n<p>  .npk-related-card .npk-card__body{\n    padding:24px;\n  }<\/p>\n<p>  .npk-related-card .npk-card__body h3{\n    font-size:20px;\n  }\n}<\/p>\n<p>@media(max-width:700px){\n  .npk-wrap{padding:0 18px;}\n  .npk-card,\n  .npk-panel,\n  .npk-band,\n  .npk-cta{padding:24px;}\n}\n<\/style>\n<article class=\"npk-pb\">\n<p>  <!-- HERO --><\/p>\n<section class=\"npk-section\" style=\"padding-top:96px;\">\n<div class=\"npk-wrap\">\n<div class=\"npk-split\">\n<div>\n<div class=\"npk-eyebrow\">Paperboard Materials<\/div>\n<h1 class=\"npk-title\">\n            Paperboard material selection for folding carton packaging<br \/>\n          <\/h1>\n<p class=\"npk-lead\">\n            The board grade behind a folding carton affects print quality, stiffness, scoring, product protection, food-contact suitability, sustainability claims, and converting performance. SBS, SUS, CRB, FBB, URB, and micro-flute are different packaging substrates with different strengths, limitations, and end-use requirements.\n          <\/p>\n<div class=\"npk-pill-row\" aria-label=\"Paperboard grade topics\">\n<div class=\"npk-pill\"><span class=\"npk-dot\"><\/span> SBS<\/div>\n<div class=\"npk-pill\"><span class=\"npk-dot\"><\/span> SUS \/ CUK<\/div>\n<div class=\"npk-pill\"><span class=\"npk-dot\"><\/span> CRB<\/div>\n<div class=\"npk-pill\"><span class=\"npk-dot\"><\/span> FBB<\/div>\n<div class=\"npk-pill\"><span class=\"npk-dot\"><\/span> URB<\/div>\n<div class=\"npk-pill\"><span class=\"npk-dot\"><\/span> Micro-flute<\/div>\n<\/p><\/div>\n<\/p><\/div>\n<aside class=\"npk-panel\">\n<h3>The substrate is part of the specification<\/h3>\n<p>\n            Netpak evaluates board choice against product weight, retail presentation, food-contact profile, print method, finishing requirements, sustainability goals, and filling-line performance.<sup><a href=\"#ref-1\">1<\/a><\/sup>\n          <\/p>\n<ul class=\"npk-panel__list\">\n<li><span class=\"npk-check\">\u2713<\/span><span>Match stiffness and caliper to the carton structure.<\/span><\/li>\n<li><span class=\"npk-check\">\u2713<\/span><span>Choose surface quality based on print and finishing needs.<\/span><\/li>\n<li><span class=\"npk-check\">\u2713<\/span><span>Review coatings, windows, and food-contact requirements before production.<\/span><\/li>\n<\/ul>\n<\/aside><\/div>\n<\/p><\/div>\n<\/section>\n<hr class=\"npk-rule\">\n<p>  <!-- WHO NETPAK IS --><\/p>\n<section class=\"npk-section npk-section--soft\">\n<div class=\"npk-wrap\">\n<div class=\"npk-split\">\n<div>\n<div class=\"npk-eyebrow\">Netpak Capability<\/div>\n<h2 class=\"npk-gradient-title\">A Canadian folding carton manufacturer with paperboard grade expertise<\/h2>\n<div class=\"npk-body\" style=\"margin-top:20px;\">\n<p>\n              Netpak manufactures custom folding cartons for North American brands across food, beverage, pharmaceutical, health and beauty, consumer goods, electronics, and regulated product categories. Its paperboard grade offering includes SBS, SUS, CRB, FBB, URB, and micro-flute for distinct packaging requirements.<sup><a href=\"#ref-1\">1<\/a><\/sup>\n            <\/p>\n<p>\n              The correct paperboard grade depends on the full carton system. A premium cosmetic carton, frozen food sleeve, beverage carrier, pharmaceutical folding carton, and club-store package can all require different board behavior, even when the finished package looks similar.\n            <\/p>\n<\/p><\/div>\n<\/p><\/div>\n<div class=\"npk-img-card\">\n          <img\n            src=\"\/wp-content\/uploads\/2023\/01\/img_carton_sbs-2-opt.webp\"\n            alt=\"Solid bleached sulfate paperboard used for folding carton packaging\"\n            width=\"1500\"\n            height=\"1061\"\n            loading=\"lazy\"\n            decoding=\"async\"\n          ><\/p>\n<div class=\"npk-img-caption\">\n            Paperboard selection should be tied to print surface, score performance, product protection, food-contact needs, and the carton\u2019s end-use environment.\n          <\/div>\n<\/p><\/div>\n<\/p><\/div>\n<div class=\"npk-mini-grid\" aria-label=\"Paperboard selection factors\">\n<div class=\"npk-mini\">\n          <strong>Print performance<\/strong><br \/>\n          <span>Board surface affects ink holdout, color consistency, varnish behavior, and premium finishing.<\/span>\n        <\/div>\n<div class=\"npk-mini\">\n          <strong>Structural behavior<\/strong><br \/>\n          <span>Stiffness, caliper, grain direction, and tear resistance affect folding, loading, stacking, and shelf presence.<\/span>\n        <\/div>\n<div class=\"npk-mini\">\n          <strong>Compliance profile<\/strong><br \/>\n          <span>Food-contact, recycled content, coatings, and recyclability claims need to be reviewed before artwork locks.<\/span>\n        <\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/section>\n<p>  <!-- MATERIAL OVERVIEW --><\/p>\n<section class=\"npk-section\">\n<div class=\"npk-wrap\">\n<div class=\"npk-eyebrow\">Board Grades<\/div>\n<h2 class=\"npk-gradient-title\">The main paperboard substrates used in folding carton packaging<\/h2>\n<p class=\"npk-lead\">\n        Folding carton paperboard is usually selected from virgin fiber grades, recycled fiber grades, or corrugated micro-flute structures. The right choice depends on how the package must print, fold, protect, ship, and present at retail.\n      <\/p>\n<div class=\"npk-material-grid\">\n<article class=\"npk-material\">\n          <img\n            src=\"\/wp-content\/uploads\/2023\/01\/img_carton_sbs-2-opt.webp\"\n            alt=\"SBS paperboard for premium folding carton packaging\"\n            width=\"1500\"\n            height=\"1061\"\n            loading=\"lazy\"\n            decoding=\"async\"\n          ><\/p>\n<div class=\"npk-material__body\">\n<h3>SBS<\/h3>\n<p>\n              Solid bleached sulfate is a premium white paperboard grade associated with high-quality print performance and retail presentation.<sup><a href=\"#ref-2\">2<\/a><\/sup>\n            <\/p>\n<\/p><\/div>\n<\/article>\n<article class=\"npk-material\">\n          <img\n            src=\"\/wp-content\/uploads\/2023\/01\/img_carton_sus-q76.webp\"\n            alt=\"SUS paperboard for strong folding carton packaging\"\n            width=\"1500\"\n            height=\"1060\"\n            loading=\"lazy\"\n            decoding=\"async\"\n          ><\/p>\n<div class=\"npk-material__body\">\n<h3>SUS \/ CUK<\/h3>\n<p>\n              Solid unbleached sulfate, often discussed with coated unbleached kraft, is selected when strength, stiffness, and durability matter.\n            <\/p>\n<\/p><\/div>\n<\/article>\n<article class=\"npk-material\">\n          <img\n            src=\"\/wp-content\/uploads\/2023\/01\/img_carton_crb-1.webp\"\n            alt=\"CRB recycled paperboard for folding carton packaging\"\n            width=\"1500\"\n            height=\"1060\"\n            loading=\"lazy\"\n            decoding=\"async\"\n          ><\/p>\n<div class=\"npk-material__body\">\n<h3>CRB<\/h3>\n<p>\n              Coated recycled board is used when recycled content and value matter, especially for dry goods and general consumer packaging.\n            <\/p>\n<\/p><\/div>\n<\/article>\n<article class=\"npk-material\">\n          <img\n            src=\"\/wp-content\/uploads\/2023\/01\/img_carton_fbb-1.webp\"\n            alt=\"FBB folding box board for folding carton packaging\"\n            width=\"1500\"\n            height=\"1060\"\n            loading=\"lazy\"\n            decoding=\"async\"\n          ><\/p>\n<div class=\"npk-material__body\">\n<h3>FBB<\/h3>\n<p>\n              Folding box board balances printability, stiffness, and material efficiency, often using a layered construction that supports lightweight packaging.\n            <\/p>\n<\/p><\/div>\n<\/article>\n<article class=\"npk-material\">\n          <img\n            src=\"\/wp-content\/uploads\/2023\/01\/img_carton_urb-q84-opt.webp\"\n            alt=\"URB uncoated recycled board for carton packaging\"\n            width=\"1500\"\n            height=\"1061\"\n            loading=\"lazy\"\n            decoding=\"async\"\n          ><\/p>\n<div class=\"npk-material__body\">\n<h3>URB<\/h3>\n<p>\n              Uncoated recycled board is a practical recycled substrate for applications where premium coated print surface is not the main priority.\n            <\/p>\n<\/p><\/div>\n<\/article>\n<article class=\"npk-material\">\n          <img\n            src=\"\/wp-content\/uploads\/2023\/01\/img_carton_ondule_flute.webp\"\n            alt=\"Micro-flute corrugated board for retail packaging\"\n            width=\"1500\"\n            height=\"1060\"\n            loading=\"lazy\"\n            decoding=\"async\"\n          ><\/p>\n<div class=\"npk-material__body\">\n<h3>Micro-flute<\/h3>\n<p>\n              Micro-flute corrugated board adds rigidity and protection while supporting retail packaging formats that need strength beyond standard folding carton board.<sup><a href=\"#ref-8\">8<\/a><\/sup>\n            <\/p>\n<\/p><\/div>\n<\/article><\/div>\n<\/p><\/div>\n<\/section>\n<p>  <!-- COMPARISON TABLE --><\/p>\n<section class=\"npk-section npk-section--soft\">\n<div class=\"npk-wrap\">\n<div class=\"npk-eyebrow\">Material Comparison<\/div>\n<h2 class=\"npk-h2\">How SBS, SUS, CRB, FBB, URB, and micro-flute compare<\/h2>\n<p class=\"npk-lead\">\n        The strongest paperboard choice is the grade that fits the product, package structure, print system, filling process, and buyer requirements. A lower-cost material can become expensive if it causes print limits, score cracking, bulge, glue failure, odor risk, or compliance rework.\n      <\/p>\n<div class=\"npk-table-wrap\">\n<table class=\"npk-table\">\n<thead>\n<tr>\n<th>Board grade<\/th>\n<th>Best fit<\/th>\n<th>Key strengths<\/th>\n<th>Specification watchouts<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>SBS<\/strong><br \/>Solid bleached sulfate<\/td>\n<td>Premium retail packaging, health and beauty packaging, pharmaceutical cartons, food cartons, frozen food cartons.<\/td>\n<td>White appearance, strong print surface, clean graphics, premium finishing compatibility.<\/td>\n<td>Higher material cost. Confirm moisture exposure, coating needs, and food-contact conditions.<\/td>\n<\/tr>\n<tr>\n<td><strong>SUS \/ CUK<\/strong><br \/>Solid unbleached sulfate \/ coated unbleached kraft<\/td>\n<td>Beverage carriers, durable retail cartons, dry food packaging, electronics packaging, heavier products.<\/td>\n<td>Stiffness, tear resistance, natural kraft appearance, good durability.<\/td>\n<td>Different print character than white premium board. Confirm brand color expectations and coating requirements.<\/td>\n<\/tr>\n<tr>\n<td><strong>CRB<\/strong><br \/>Coated recycled board<\/td>\n<td>Cereal cartons, dry goods, multipurpose consumer packaging, value-oriented folding cartons.<\/td>\n<td>Recycled content, broad availability, useful for many dry product applications.<\/td>\n<td>Surface and strength tolerances can differ from virgin grades. Confirm moisture sensitivity and print expectations.<\/td>\n<\/tr>\n<tr>\n<td><strong>FBB<\/strong><br \/>Folding box board<\/td>\n<td>Food, personal care, retail cartons, lightweight packaging where stiffness and printability both matter.<\/td>\n<td>Efficient stiffness-to-weight profile, good print surface, practical balance between performance and material use.<\/td>\n<td>Confirm caliper, surface, and converting behavior against product weight and carton style.<\/td>\n<\/tr>\n<tr>\n<td><strong>URB<\/strong><br \/>Uncoated recycled board<\/td>\n<td>Internal packaging, secondary packaging, industrial or value applications where coated graphics are not required.<\/td>\n<td>Recycled fiber content, practical value, useful for non-premium applications.<\/td>\n<td>Limited retail-facing print quality. Review print, scuff, and presentation requirements.<\/td>\n<\/tr>\n<tr>\n<td><strong>Micro-flute<\/strong><br \/>Fine corrugated board<\/td>\n<td>Club-store packs, electronics, small appliances, heavier retail packs, protective display packaging.<\/td>\n<td>Rigidity, cushioning, stacking support, protection, retail structure.<\/td>\n<td>Confirm flute profile, direct print or litho-laminate strategy, score layout, and finished package dimensions.<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<\/p><\/div>\n<\/section>\n<p>  <!-- SBS --><\/p>\n<section class=\"npk-section\">\n<div class=\"npk-wrap\">\n<div class=\"npk-split\">\n<div>\n<div class=\"npk-eyebrow\">SBS Paperboard<\/div>\n<h2 class=\"npk-gradient-title\">SBS is the premium grade for high-impact folding carton packaging<\/h2>\n<div class=\"npk-body\" style=\"margin-top:20px;\">\n<p>\n              Solid bleached sulfate, commonly called SBS, is a white paperboard grade used when clean graphics, premium appearance, and reliable print reproduction matter. The Paperboard Packaging Council describes SBS as a premium grade with a brilliant white appearance and a clay-coated surface that supports high-quality printing.<sup><a href=\"#ref-2\">2<\/a><\/sup>\n            <\/p>\n<p>\n              SBS is often the right substrate for health and beauty packaging, pharmaceutical packaging, food packaging, frozen food packaging, and other folding carton programs where brand presentation cannot look compromised. Its smooth surface supports offset printing, strong color control, varnish systems, foil, embossing, debossing, and other premium finishing decisions.\n            <\/p>\n<p>\n              The tradeoff is cost and specification discipline. A premium substrate should be selected because it solves a packaging requirement. If the product needs a bright white surface, clean fine print, premium decoration, or food packaging review, SBS deserves early consideration.\n            <\/p>\n<\/p><\/div>\n<\/p><\/div>\n<div class=\"npk-card npk-card--dark\">\n<h3>When to consider SBS<\/h3>\n<ul class=\"npk-panel__list\">\n<li><span class=\"npk-check\">\u2713<\/span><span>Premium retail carton graphics.<\/span><\/li>\n<li><span class=\"npk-check\">\u2713<\/span><span>Cosmetic and personal care packaging.<\/span><\/li>\n<li><span class=\"npk-check\">\u2713<\/span><span>Pharmaceutical folding cartons with precise print requirements.<\/span><\/li>\n<li><span class=\"npk-check\">\u2713<\/span><span>Food cartons that require careful material and coating review.<\/span><\/li>\n<\/ul><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/section>\n<p>  <!-- SUS \/ CUK --><\/p>\n<section class=\"npk-section npk-section--soft\">\n<div class=\"npk-wrap\">\n<div class=\"npk-split\">\n<div class=\"npk-img-card\">\n          <img\n            src=\"\/wp-content\/uploads\/2023\/01\/img_carton_sus-q76.webp\"\n            alt=\"SUS and CUK unbleached kraft paperboard for folding carton packaging\"\n            width=\"1500\"\n            height=\"1060\"\n            loading=\"lazy\"\n            decoding=\"async\"\n          ><\/p>\n<div class=\"npk-img-caption\">\n            SUS and CUK are often considered where strength, stiffness, durability, and a natural kraft appearance are important.\n          <\/div>\n<\/p><\/div>\n<div>\n<div class=\"npk-eyebrow\">SUS and CUK<\/div>\n<h2 class=\"npk-h2\">Unbleached kraft grades support strength-driven folding carton programs<\/h2>\n<div class=\"npk-body\" style=\"margin-top:20px;\">\n<p>\n              Solid unbleached sulfate and coated unbleached kraft are used when the carton needs durability, tear resistance, stiffness, and a strong structural profile. These materials often fit beverage carriers, dry food cartons, hardware packaging, electronics packaging, and applications where package strength is more important than a bright white premium surface.\n            <\/p>\n<p>\n              The natural color of unbleached kraft can also support a sustainability-oriented brand appearance, but the visual tone must be intentional. Kraft appearance does not automatically make a package more sustainable. Material claims should be specific, documented, and tied to the actual board, coating, and converting choices.\n            <\/p>\n<p>\n              For folding carton packaging, SUS and CUK decisions should be reviewed with print expectations. Brand colors, white ink requirements, varnish choices, coating zones, and finishing effects may behave differently than they do on SBS.\n            <\/p>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/section>\n<p>  <!-- CRB \/ RECYCLED --><\/p>\n<section class=\"npk-section\">\n<div class=\"npk-wrap\">\n<div class=\"npk-eyebrow\">Recycled Board<\/div>\n<h2 class=\"npk-gradient-title\">CRB and URB support recycled content goals when the application fits<\/h2>\n<p class=\"npk-lead\">\n        Recycled paperboard is useful in many folding carton programs, especially dry goods and secondary packaging. It still needs a real performance review. Recycled content, food-contact suitability, print quality, moisture behavior, and recyclability are separate questions.\n      <\/p>\n<div class=\"npk-grid npk-grid--2\" style=\"margin-top:34px;\">\n<article class=\"npk-card\">\n          <span class=\"npk-card__tag\">CRB<\/span><\/p>\n<h3>Coated recycled board for value and recycled content<\/h3>\n<p>\n            CRB is used for many dry product folding cartons where recycled content and cost control are important. It can work well for cereal, dry mixes, household products, and general consumer goods. Specification should account for print surface, moisture sensitivity, odor risk, and strength requirements.\n          <\/p>\n<\/article>\n<article class=\"npk-card\">\n          <span class=\"npk-card__tag\">URB<\/span><\/p>\n<h3>Uncoated recycled board for practical secondary packaging<\/h3>\n<p>\n            URB is useful where a coated retail print surface is not required. It can support internal packaging, secondary packaging, partitions, and value-driven applications where presentation is less critical than function.\n          <\/p>\n<\/article><\/div>\n<div class=\"npk-band npk-band--green\" style=\"margin-top:34px;\">\n<h3 style=\"margin:0 0 12px;color:var(--npk-blue-dark);font-size:24px;line-height:1.2;font-weight:800;\">\n          Food-contact caution<br \/>\n        <\/h3>\n<p class=\"npk-body\">\n          In the United States, FDA\u2019s paper and paperboard food-contact regulations are found in 21 CFR Part 176, including provisions for paper and paperboard in contact with aqueous and fatty foods and dry food.<sup><a href=\"#ref-5\">5<\/a>,<a href=\"#ref-6\">6<\/a><\/sup> Recycled fiber for food packaging needs review against the actual use case, product type, and applicable regulatory requirements. Recycled content should never be treated as a blanket approval for direct food-contact packaging.\n        <\/p>\n<\/p><\/div>\n<\/p><\/div>\n<\/section>\n<p>  <!-- FBB --><\/p>\n<section class=\"npk-section npk-section--soft\">\n<div class=\"npk-wrap\">\n<div class=\"npk-split\">\n<div>\n<div class=\"npk-eyebrow\">FBB<\/div>\n<h2 class=\"npk-h2\">Folding box board balances stiffness, surface quality, and material efficiency<\/h2>\n<div class=\"npk-body\" style=\"margin-top:20px;\">\n<p>\n              Folding box board, or FBB, is often selected when a packaging program needs a reliable balance between surface quality, stiffness, and material efficiency. Its layered construction can support a lighter board structure while maintaining useful rigidity for many folding carton applications.\n            <\/p>\n<p>\n              FBB can be a strong candidate for food packaging, personal care packaging, retail cartons, and packaging programs that need good print performance without defaulting to the most premium white board option.\n            <\/p>\n<p>\n              The decision should be made at the specification level. Caliper, grain direction, coating, converting performance, scoring, and product weight should be reviewed before assuming FBB can replace SBS, SUS, or CRB.\n            <\/p>\n<\/p><\/div>\n<\/p><\/div>\n<div class=\"npk-img-card\">\n          <img\n            src=\"\/wp-content\/uploads\/2023\/01\/img_carton_fbb-1.webp\"\n            alt=\"FBB folding box board used in carton packaging\"\n            width=\"1500\"\n            height=\"1060\"\n            loading=\"lazy\"\n            decoding=\"async\"\n          ><\/p>\n<div class=\"npk-img-caption\">\n            FBB can be useful when the carton needs a balance of print quality, stiffness, and material efficiency.\n          <\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/section>\n<p>  <!-- MICRO-FLUTE --><\/p>\n<section class=\"npk-section\">\n<div class=\"npk-wrap\">\n<div class=\"npk-eyebrow\">Micro-Flute<\/div>\n<h2 class=\"npk-gradient-title\">Micro-flute supports stronger retail cartons and protective packaging<\/h2>\n<div class=\"npk-split\" style=\"margin-top:30px;\">\n<div class=\"npk-img-card\">\n          <img\n            src=\"\/wp-content\/uploads\/2023\/01\/img_carton_ondule_flute.webp\"\n            alt=\"Micro-flute corrugated board for folding carton and retail packaging\"\n            width=\"1500\"\n            height=\"1060\"\n            loading=\"lazy\"\n            decoding=\"async\"\n          ><\/p>\n<div class=\"npk-img-caption\">\n            Micro-flute adds structural support for retail packaging that needs more rigidity than standard folding carton board.\n          <\/div>\n<\/p><\/div>\n<div>\n<div class=\"npk-body\">\n<p>\n              Corrugated board uses a fluted medium between linerboards to create a stronger structure. Fibre Box Association describes common flute profiles including A, B, C, and E flute, with E flute having a finer profile than larger shipping-box flutes.<sup><a href=\"#ref-8\">8<\/a><\/sup> Smaller flute profiles can support retail packaging where structure and surface presentation both matter.\n            <\/p>\n<p>\n              Micro-flute is useful for small appliances, electronics, beverage carriers, heavier retail packs, club-store packaging, toy packaging, and applications that need protection with a more polished shelf presence than standard shipping corrugated.\n            <\/p>\n<p>\n              Netpak\u2019s paperboard offering includes micro-flute as part of its broader folding carton substrate capabilities.<sup><a href=\"#ref-1\">1<\/a><\/sup> For brands comparing folding carton board with micro-flute corrugated, the decision should include product weight, stacking, distribution, window size, print method, and shelf presentation.\n            <\/p>\n<\/p><\/div>\n<div class=\"npk-card npk-card--dark\" style=\"margin-top:26px;\">\n<h3>Micro-flute specification questions<\/h3>\n<ul class=\"npk-panel__list\">\n<li><span class=\"npk-check\">\u2713<\/span><span>Does the product need cushioning or stacking support?<\/span><\/li>\n<li><span class=\"npk-check\">\u2713<\/span><span>Will the package be direct printed, laminated, or finished another way?<\/span><\/li>\n<li><span class=\"npk-check\">\u2713<\/span><span>Does the carton need a large window or stronger retail structure?<\/span><\/li>\n<li><span class=\"npk-check\">\u2713<\/span><span>Will the package ship through e-commerce, retail distribution, or club-store handling?<\/span><\/li>\n<\/ul><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/section>\n<p>  <!-- PRINT PERFORMANCE --><\/p>\n<section class=\"npk-section npk-section--soft\">\n<div class=\"npk-wrap\">\n<div class=\"npk-split\">\n<div>\n<div class=\"npk-eyebrow\">Print Performance<\/div>\n<h2 class=\"npk-h2\">Paperboard choice changes how graphics print, finish, and hold color<\/h2>\n<div class=\"npk-body\" style=\"margin-top:20px;\">\n<p>\n              A folding carton substrate directly affects print performance. SBS may support cleaner fine detail and premium graphics. CRB may require different ink strength or press adjustment. Kraft grades may change brand color perception. Micro-flute may require a different print approach than conventional folding carton board.\n            <\/p>\n<p>\n              This matters because packaging buyers often approve color on screen before the substrate is fully resolved. That creates avoidable risk. Board selection, color targets, coating strategy, varnish, foil, embossing, and dieline should be reviewed together.\n            <\/p>\n<p>\n              Netpak\u2019s folding carton process is strongest when substrate, prepress, structural design, and finishing decisions are aligned before the carton is treated as press-ready.\n            <\/p>\n<\/p><\/div>\n<\/p><\/div>\n<div class=\"npk-img-card\">\n          <img\n            src=\"\/wp-content\/uploads\/2022\/12\/img_couleurs-2.webp\"\n            alt=\"Printing color control for folding carton packaging\"\n            width=\"1500\"\n            height=\"1060\"\n            loading=\"lazy\"\n            decoding=\"async\"\n          ><\/p>\n<div class=\"npk-img-caption\">\n            Color performance depends on the paperboard surface, coating, ink system, and finishing plan.\n          <\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/section>\n<p>  <!-- SPECIFICATION CONTROL --><\/p>\n<section class=\"npk-section\">\n<div class=\"npk-wrap\">\n<div class=\"npk-eyebrow\">Specification Control<\/div>\n<h2 class=\"npk-gradient-title\">The board grade should be finalized with the dieline<\/h2>\n<p class=\"npk-lead\">\n        Paperboard material affects score depth, fold behavior, glue performance, carton squareness, dust, cracking, bulge resistance, and machine performance. A substrate change late in the process can force structural and artwork changes.\n      <\/p>\n<div class=\"npk-split\" style=\"margin-top:34px;\">\n<div class=\"npk-img-card\">\n          <img\n            src=\"\/wp-content\/uploads\/2022\/12\/img_dieline-1.webp\"\n            alt=\"Dieline and structural design for folding carton packaging\"\n            width=\"1500\"\n            height=\"1060\"\n            loading=\"lazy\"\n            decoding=\"async\"\n          ><\/p>\n<div class=\"npk-img-caption\">\n            Dieline, grain direction, score layout, glue areas, and board grade should be reviewed as one packaging specification.\n          <\/div>\n<\/p><\/div>\n<div class=\"npk-card\">\n<h3>Inputs Netpak should review before board selection<\/h3>\n<ul class=\"npk-list\">\n<li><span class=\"npk-num\">1<\/span><span>Product dimensions, weight, and fragility.<\/span><\/li>\n<li><span class=\"npk-num\">2<\/span><span>Retail channel, distribution method, and stacking conditions.<\/span><\/li>\n<li><span class=\"npk-num\">3<\/span><span>Food-contact, pharmaceutical, or regulated product requirements.<\/span><\/li>\n<li><span class=\"npk-num\">4<\/span><span>Print method, brand color requirements, coating, and finishing effects.<\/span><\/li>\n<li><span class=\"npk-num\">5<\/span><span>Window patches, inserts, barriers, laminations, and recyclability claims.<\/span><\/li>\n<li><span class=\"npk-num\">6<\/span><span>Filling-line speed, gluing method, packing process, and storage conditions.<\/span><\/li>\n<\/ul><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/section>\n<p>  <!-- SUSTAINABILITY --><\/p>\n<section class=\"npk-section npk-section--soft\">\n<div class=\"npk-wrap\">\n<div class=\"npk-eyebrow\">Sustainability<\/div>\n<h2 class=\"npk-h2\">Sustainable paperboard packaging requires more than choosing recycled content<\/h2>\n<div class=\"npk-body\" style=\"margin-top:20px;max-width:920px;\">\n<p>\n          Recycled content can be valuable, but sustainability decisions in folding carton packaging should include material weight, product protection, spoilage prevention, recyclability, coatings, adhesives, windows, inks, logistics, and the actual end market for the package.\n        <\/p>\n<p>\n          CEPI\u2019s recyclability test method is designed to evaluate paper and board recyclability by emulating key recycling mill phases such as pulping, screening, and sheet formation.<sup><a href=\"#ref-7\">7<\/a><\/sup> This is important because paper-based packaging can remain recyclable while coatings, barriers, laminations, and other functional features may affect recycling performance.\n        <\/p>\n<p>\n          For Netpak customers, the practical question is which material protects the product, keeps the carton efficient, supports accurate claims, and fits the buyer\u2019s packaging requirements.\n        <\/p>\n<\/p><\/div>\n<div class=\"npk-grid npk-grid--3\" style=\"margin-top:34px;\">\n<article class=\"npk-card\">\n<h3>Use recycled board where it fits<\/h3>\n<p>\n            CRB and URB can be strong options for dry goods, secondary packaging, and value-driven packaging, but they still need product-specific review.\n          <\/p>\n<\/article>\n<article class=\"npk-card\">\n<h3>Avoid unsupported claims<\/h3>\n<p>\n            Recyclability, recycled content, compostability, and plastic reduction claims should match the actual packaging material and market requirements.\n          <\/p>\n<\/article>\n<article class=\"npk-card\">\n<h3>Protect the product first<\/h3>\n<p>\n            Under-specifying board can create damage, waste, returns, and production issues. Packaging sustainability starts with the package doing its job.\n          <\/p>\n<\/article><\/div>\n<\/p><\/div>\n<\/section>\n<p>  <!-- PROCUREMENT --><\/p>\n<section class=\"npk-section\">\n<div class=\"npk-wrap\">\n<div class=\"npk-eyebrow\">Procurement<\/div>\n<h2 class=\"npk-gradient-title\">How to choose the right paperboard grade for a folding carton project<\/h2>\n<p class=\"npk-lead\">\n        The right board grade comes from the product brief, carton structure, print expectations, compliance profile, distribution path, and cost target.\n      <\/p>\n<div class=\"npk-grid npk-grid--4\" style=\"margin-top:34px;\">\n<article class=\"npk-card\">\n<h3>Start with the product<\/h3>\n<p>\n            Weight, shape, moisture exposure, odor sensitivity, fragility, and fill process determine the carton\u2019s real performance needs.\n          <\/p>\n<\/article>\n<article class=\"npk-card\">\n<h3>Define the retail requirement<\/h3>\n<p>\n            Shelf impact, print quality, scuff resistance, premium finishing, and display structure narrow the substrate options quickly.\n          <\/p>\n<\/article>\n<article class=\"npk-card\">\n<h3>Review compliance early<\/h3>\n<p>\n            Food, pharmaceutical, and regulated product packaging need material review before artwork and claims are finalized.\n          <\/p>\n<\/article>\n<article class=\"npk-card\">\n<h3>Confirm converting behavior<\/h3>\n<p>\n            Score cracking, glue performance, dust, carton squareness, and filling-line behavior can make or break the final specification.\n          <\/p>\n<\/article><\/div>\n<div class=\"npk-band npk-band--green\" style=\"margin-top:34px;\">\n<h3 style=\"margin:0 0 10px;color:var(--npk-blue-dark);font-size:26px;line-height:1.2;font-weight:800;\">\n          Why this fits Netpak<br \/>\n        <\/h3>\n<p class=\"npk-body\">\n          Netpak\u2019s paperboard grade capabilities cover SBS, SUS, CRB, FBB, URB, and micro-flute. That range allows a brand to compare structure, print quality, strength, food packaging needs, sustainability requirements, and cost in one folding carton specification process.<sup><a href=\"#ref-1\">1<\/a><\/sup>\n        <\/p>\n<\/p><\/div>\n<\/p><\/div>\n<\/section>\n<p>  <!-- QUOTE PREP --><\/p>\n<section class=\"npk-section npk-section--soft\">\n<div class=\"npk-wrap\">\n<div class=\"npk-eyebrow\">Quote Preparation<\/div>\n<h2 class=\"npk-h2\">What to send Netpak for a paperboard grade recommendation<\/h2>\n<p class=\"npk-lead\">\n        A useful folding carton quote should include enough information to evaluate the board grade, not just the carton dimensions.\n      <\/p>\n<div class=\"npk-grid npk-grid--2\" style=\"margin-top:34px;\">\n<div class=\"npk-card\">\n<h3>Core project inputs<\/h3>\n<ul class=\"npk-list\">\n<li><span class=\"npk-num\">1<\/span><span>Carton dimensions and dieline, if available.<\/span><\/li>\n<li><span class=\"npk-num\">2<\/span><span>Product type, product weight, and product sensitivity.<\/span><\/li>\n<li><span class=\"npk-num\">3<\/span><span>Target board grade, if already known.<\/span><\/li>\n<li><span class=\"npk-num\">4<\/span><span>Estimated order quantity and reorder cadence.<\/span><\/li>\n<li><span class=\"npk-num\">5<\/span><span>Retail channel, warehouse path, and distribution method.<\/span><\/li>\n<\/ul><\/div>\n<div class=\"npk-card\">\n<h3>Specification inputs<\/h3>\n<ul class=\"npk-list\">\n<li><span class=\"npk-num\">6<\/span><span>Print method, color expectations, and finishing requirements.<\/span><\/li>\n<li><span class=\"npk-num\">7<\/span><span>Food-contact, pharma, or regulated product requirements.<\/span><\/li>\n<li><span class=\"npk-num\">8<\/span><span>Moisture, freezer, grease, or odor considerations.<\/span><\/li>\n<li><span class=\"npk-num\">9<\/span><span>Window, insert, barrier, or coating requirements.<\/span><\/li>\n<li><span class=\"npk-num\">10<\/span><span>Recycled content, recyclability, or retailer packaging requirements.<\/span><\/li>\n<\/ul><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/section>\n<p>  <!-- CTA --><\/p>\n<section class=\"npk-section\">\n<div class=\"npk-wrap\">\n<div class=\"npk-cta\">\n<h2>Request a paperboard grade review for your folding carton<\/h2>\n<p>\n          Send Netpak your dieline, product details, target market, print requirements, material preferences, and packaging constraints. Netpak can review whether SBS, SUS, CRB, FBB, URB, or micro-flute is the right fit before the carton moves into production.\n        <\/p>\n<div class=\"npk-actions\">\n          <a class=\"npk-btn npk-btn--primary\" href=\"\/en\/request-a-quote\/\">Submit carton project details<\/a><br \/>\n          <a class=\"npk-btn npk-btn--light\" href=\"mailto:sales@netpak.com\">Email sales@netpak.com<\/a>\n        <\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/section>\n<p>  <!-- RELATED RESOURCES --><\/p>\n<section class=\"npk-section npk-section--soft\">\n<div class=\"npk-wrap\">\n<div class=\"npk-eyebrow\">Related Resources<\/div>\n<h2 class=\"npk-gradient-title\">Continue planning your folding carton specification<\/h2>\n<p class=\"npk-lead\">\n        Use these related guides to refine carton strength, retail execution, food packaging requirements, and material performance before requesting production pricing.\n      <\/p>\n<div class=\"npk-grid npk-grid--4 npk-related-grid\" style=\"margin-top:34px;\">\n<p>        <a class=\"npk-card npk-card--link npk-related-card\" href=\"\/en\/packaging-resources\/industry-articles\/high-strength-folding-cartons-paperboard-micro-flute\/\"><\/p>\n<div class=\"npk-card__image\">\n            <img\n              src=\"\/wp-content\/uploads\/2023\/01\/img_carton_fbb-1.webp\"\n              alt=\"High-strength folding cartons using paperboard and micro-flute structures\"\n              width=\"800\"\n              height=\"600\"\n              loading=\"lazy\"\n              decoding=\"async\"\n            >\n          <\/div>\n<div class=\"npk-card__body\">\n            <span class=\"npk-card__tag\">High Strength<\/span><\/p>\n<h3>High-strength folding cartons<\/h3>\n<p>\n              Review paperboard, solidboard, E-flute, F-flute, and N-flute options for cartons that need more strength, stacking support, or product protection.\n            <\/p>\n<p>            <span class=\"npk-card__link\">Open article<\/span>\n          <\/div>\n<p>        <\/a><\/p>\n<p>        <a class=\"npk-card npk-card--link npk-related-card\" href=\"\/en\/packaging-resources\/industry-articles\/micro-flute-packaging-e-f-n-flute\/\"><\/p>\n<div class=\"npk-card__image\">\n            <img\n              src=\"\/wp-content\/uploads\/2023\/01\/img_carton_ondule_flute.webp\"\n              alt=\"Micro-flute corrugated cardboard for folding carton packaging\"\n              width=\"800\"\n              height=\"600\"\n              loading=\"lazy\"\n              decoding=\"async\"\n            >\n          <\/div>\n<div class=\"npk-card__body\">\n            <span class=\"npk-card__tag\">Micro-Flute<\/span><\/p>\n<h3>Micro-flute packaging: E, F and N-flute guide<\/h3>\n<p>\n              Compare E-flute, F-flute, and N-flute corrugated board for print quality, folding accuracy, strength, sustainability, and retail presentation.\n            <\/p>\n<p>            <span class=\"npk-card__link\">Open article<\/span>\n          <\/div>\n<p>        <\/a><\/p>\n<p>        <a class=\"npk-card npk-card--link npk-related-card\" href=\"\/en\/packaging-resources\/industry-articles\/retail-ready-folding-carton-packaging\/\"><\/p>\n<div class=\"npk-card__image\">\n            <img\n              src=\"\/wp-content\/uploads\/2022\/11\/img_emballage_multiple.webp\"\n              alt=\"Retail-ready folding carton packaging for grocery and private label launches\"\n              width=\"800\"\n              height=\"600\"\n              loading=\"lazy\"\n              decoding=\"async\"\n            >\n          <\/div>\n<div class=\"npk-card__body\">\n            <span class=\"npk-card__tag\">Retail-Ready<\/span><\/p>\n<h3>Retail-ready folding carton packaging for grocery launches<\/h3>\n<p>\n              Plan grocery, club store, and private label packaging programs around structure, materials, barcodes, shelf execution, and logistics.\n            <\/p>\n<p>            <span class=\"npk-card__link\">Open article<\/span>\n          <\/div>\n<p>        <\/a><\/p>\n<p>        <a class=\"npk-card npk-card--link npk-related-card\" href=\"\/en\/packaging-resources\/industry-articles\/food-packaging-supplier-checklist\/\"><\/p>\n<div class=\"npk-card__image\">\n            <img\n              src=\"\/wp-content\/uploads\/2022\/11\/img_congele.webp\"\n              alt=\"Food packaging supplier checklist for custom folding cartons\"\n              width=\"800\"\n              height=\"600\"\n              loading=\"lazy\"\n              decoding=\"async\"\n            >\n          <\/div>\n<div class=\"npk-card__body\">\n            <span class=\"npk-card__tag\">Food Packaging<\/span><\/p>\n<h3>Food packaging supplier checklist<\/h3>\n<p>\n              Evaluate food-contact fit, material controls, BRCGS systems, prepress support, production discipline, and logistics before selecting a folding carton supplier.\n            <\/p>\n<p>            <span class=\"npk-card__link\">Open article<\/span>\n          <\/div>\n<p>        <\/a><\/p><\/div>\n<\/p><\/div>\n<\/section>\n<p>  <!-- SOURCES --><\/p>\n<section class=\"npk-section npk-section--soft\">\n<div class=\"npk-wrap\">\n<div class=\"npk-eyebrow\">References<\/div>\n<h2 class=\"npk-h2\">Sources<\/h2>\n<ol class=\"npk-ref-list\">\n<li id=\"ref-1\">\n          Netpak, Paperboard Grades for Folding Cartons.<br \/>\n          <a href=\"https:\/\/www.netpak.com\/en\/products\/paperboard-grades\/\" target=\"_blank\" rel=\"noopener\">https:\/\/www.netpak.com\/en\/products\/paperboard-grades\/<\/a>\n        <\/li>\n<li id=\"ref-2\">\n          Paperboard Packaging Council, 4 Types of Paperboard.<br \/>\n          <a href=\"https:\/\/paperbox.org\/4-types-of-paperboard\/\" target=\"_blank\" rel=\"noopener\">https:\/\/paperbox.org\/4-types-of-paperboard\/<\/a>\n        <\/li>\n<li id=\"ref-3\">\n          JohnsByrne, Grades of Folding Carton Board Explained.<br \/>\n          <a href=\"https:\/\/www.johnsbyrne.com\/blog\/grades-of-folding-carton-board-explained\/\" target=\"_blank\" rel=\"noopener\">https:\/\/www.johnsbyrne.com\/blog\/grades-of-folding-carton-board-explained\/<\/a>\n        <\/li>\n<li id=\"ref-4\">\n          PG Paper, Types of Paperboard: SBS vs FBB.<br \/>\n          <a href=\"https:\/\/www.pgpaper.com\/types-of-paperboard\/\" target=\"_blank\" rel=\"noopener\">https:\/\/www.pgpaper.com\/types-of-paperboard\/<\/a>\n        <\/li>\n<li id=\"ref-5\">\n          eCFR, 21 CFR Part 176, Indirect Food Additives: Paper and Paperboard Components.<br \/>\n          <a href=\"https:\/\/www.ecfr.gov\/current\/title-21\/chapter-I\/subchapter-B\/part-176\" target=\"_blank\" rel=\"noopener\">https:\/\/www.ecfr.gov\/current\/title-21\/chapter-I\/subchapter-B\/part-176<\/a>\n        <\/li>\n<li id=\"ref-6\">\n          FDA, Guidance for Industry: Use of Recycled Plastics in Food Packaging, Chemistry Considerations.<br \/>\n          <a href=\"https:\/\/www.fda.gov\/media\/150792\/download\" target=\"_blank\" rel=\"noopener\">https:\/\/www.fda.gov\/media\/150792\/download<\/a>\n        <\/li>\n<li id=\"ref-7\">\n          CEPI, Recyclability Laboratory Test Method Version 3.<br \/>\n          <a href=\"https:\/\/www.cepi.org\/cepi-recyclability-test-method-version-3\/\" target=\"_blank\" rel=\"noopener\">https:\/\/www.cepi.org\/cepi-recyclability-test-method-version-3\/<\/a>\n        <\/li>\n<li id=\"ref-8\">\n          Fibre Box Association, What is Corrugated.<br \/>\n          <a href=\"https:\/\/www.fibrebox.org\/what-is-corrugated\/\" target=\"_blank\" rel=\"noopener\">https:\/\/www.fibrebox.org\/what-is-corrugated\/<\/a>\n        <\/li>\n<li id=\"ref-9\">\n          Sustainable Packaging Coalition, How to Know If Your Paper Packaging Is Recyclable.<br \/>\n          <a href=\"https:\/\/sustainablepackaging.org\/wp-content\/uploads\/2023\/01\/SPC_Paper-Pkg-Report_FINAL.pdf\" target=\"_blank\" rel=\"noopener\">https:\/\/sustainablepackaging.org\/wp-content\/uploads\/2023\/01\/SPC_Paper-Pkg-Report_FINAL.pdf<\/a>\n        <\/li>\n<\/ol><\/div>\n<\/section>\n<\/article>\n<\/div>\n<p><!--more--><br \/>\n<!-- {\"type\":\"layout\",\"children\":[{\"type\":\"section\",\"props\":{\"image_position\":\"center-center\",\"style\":\"default\",\"title_breakpoint\":\"xl\",\"title_position\":\"top-left\",\"title_rotation\":\"left\",\"vertical_align\":\"middle\",\"width\":\"default\"},\"children\":[{\"type\":\"row\",\"children\":[{\"type\":\"column\",\"props\":{\"image_position\":\"center-center\",\"position_sticky_breakpoint\":\"m\"},\"children\":[{\"type\":\"html\",\"props\":{\"content\":\"<!-- NETPAK BLOG -->\\n<!-- Topic: Paperboard Material in Folding Carton Packaging -->\\n<!-- Revamped SEO article with sources and Netpak positioning -->\\n\\n<link href=\\\"https:\\\/\\\/fonts.googleapis.com\\\/css2?family=Montserrat:wght@400;500;600;700;800&#038;display=swap\\\" 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background:#fff;\\n  border:1px solid rgba(30,56,118,.12);\\n  border-radius:22px;\\n  box-shadow:var(--npk-shadow-soft);\\n  overflow:hidden;\\n}\\n\\n.npk-material img{\\n  width:100%;\\n  height:auto;\\n  display:block;\\n}\\n\\n.npk-material__body{\\n  padding:22px;\\n}\\n\\n.npk-material__body h3{\\n  margin:0 0 8px;\\n  color:var(--npk-blue-dark);\\n  font-size:20px;\\n  line-height:1.22;\\n  font-weight:800;\\n}\\n\\n.npk-material__body p{\\n  margin:0;\\n  color:#2f3540;\\n  font-size:15px;\\n  line-height:1.6;\\n}\\n\\n.npk-table-wrap{\\n  width:100%;\\n  overflow-x:auto;\\n  margin-top:30px;\\n  border-radius:22px;\\n  box-shadow:var(--npk-shadow-soft);\\n  border:1px solid rgba(30,56,118,.12);\\n}\\n\\n.npk-table{\\n  width:100%;\\n  min-width:780px;\\n  border-collapse:collapse;\\n  background:#fff;\\n}\\n\\n.npk-table th,\\n.npk-table td{\\n  padding:18px;\\n  text-align:left;\\n  vertical-align:top;\\n  border-bottom:1px solid rgba(30,56,118,.1);\\n  font-size:15px;\\n  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line-height:1;\\n  font-weight:800;\\n  text-decoration:none !important;\\n  transition:transform .2s ease, box-shadow .2s ease, background .2s ease;\\n}\\n\\n.npk-btn--primary{\\n  color:#fff !important;\\n  background:var(--npk-green-grad);\\n  box-shadow:0 12px 26px rgba(62,156,58,.26);\\n}\\n\\n.npk-btn--primary:hover{\\n  transform:translateY(-2px);\\n  box-shadow:0 16px 34px rgba(62,156,58,.36);\\n}\\n\\n.npk-btn--light{\\n  color:var(--npk-blue-dark) !important;\\n  background:#fff;\\n  box-shadow:0 12px 26px rgba(0,0,0,.13);\\n}\\n\\n.npk-btn--light:hover{\\n  transform:translateY(-2px);\\n}\\n\\n.npk-rule{\\n  width:100%;\\n  height:1px;\\n  background:rgba(30,56,118,.12);\\n  margin:0;\\n  border:0;\\n}\\n\\n.npk-list{\\n  margin:18px 0 0;\\n  padding:0;\\n  list-style:none;\\n  display:grid;\\n  gap:12px;\\n}\\n\\n.npk-list li{\\n  display:grid;\\n  grid-template-columns:28px 1fr;\\n  gap:12px;\\n  color:#242a34;\\n  font-size:16px;\\n  line-height:1.58;\\n}\\n\\n.npk-num{\\n  width:28px;\\n  height:28px;\\n  border-radius:50%;\\n  background:#eef3ff;\\n  color:var(--npk-blue);\\n  display:inline-flex;\\n  align-items:center;\\n  justify-content:center;\\n  font-weight:800;\\n  font-size:13px;\\n}\\n\\n.npk-ref-list{\\n  margin:18px 0 0 22px;\\n  padding:0;\\n}\\n\\n.npk-ref-list li{\\n  margin:0 0 14px;\\n  padding:0 0 14px;\\n  border-bottom:1px solid rgba(30,56,118,.1);\\n  color:#20242c;\\n  font-size:15px;\\n  line-height:1.55;\\n}\\n\\n.npk-ref-list li:last-child{\\n  border-bottom:0;\\n}\\n\\n.npk-ref-list a{\\n  color:var(--npk-blue);\\n  text-decoration:underline;\\n  overflow-wrap:anywhere;\\n}\\n\\n\\\/* Related article cards, 4-column layout, wider text area, bottom-aligned buttons, no hover underlines *\\\/\\n.npk-related-grid{\\n  align-items:stretch;\\n}\\n\\n.npk-related-card{\\n  display:flex !important;\\n  flex-direction:column;\\n  height:100%;\\n  padding:0 !important;\\n  overflow:hidden;\\n  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.npk-card__link{\\n  display:inline-flex;\\n  align-items:center;\\n  justify-content:center;\\n  width:max-content;\\n  min-height:42px;\\n  margin-top:20px;\\n  padding:11px 17px;\\n  border-radius:999px;\\n  color:#fff !important;\\n  background:var(--npk-blue-dark);\\n  font-size:13px;\\n  line-height:1;\\n  font-weight:800;\\n  text-decoration:none !important;\\n  box-shadow:0 10px 22px rgba(17,38,82,.18);\\n  transition:transform .2s ease, box-shadow .2s ease, background .2s ease;\\n}\\n\\n.npk-related-card:hover .npk-card__link,\\n.npk-related-card:focus .npk-card__link{\\n  color:#fff !important;\\n  background:linear-gradient(135deg,#10285f 0%,#234b9d 72%,#2d5ab8 100%);\\n  transform:translateY(-2px);\\n  box-shadow:0 14px 30px rgba(17,38,82,.24);\\n}\\n\\n@media(max-width:1024px){\\n  .npk-related-card .npk-card__image img{\\n    height:170px;\\n  }\\n}\\n\\n@media(max-width:760px){\\n  .npk-related-card .npk-card__image img{\\n    height:210px;\\n  }\\n\\n  .npk-related-card .npk-card__body{\\n    padding:24px;\\n  }\\n\\n  .npk-related-card .npk-card__body h3{\\n    font-size:20px;\\n  }\\n}\\n\\n@media(max-width:700px){\\n  .npk-wrap{padding:0 18px;}\\n  .npk-card,\\n  .npk-panel,\\n  .npk-band,\\n  .npk-cta{padding:24px;}\\n}\\n<\\\/style>\\n\\n<\/p>\n<article class=\\\"npk-pb\\\">\\n\\n  <!-- HERO -->\\n  <\/p>\n<section class=\\\"npk-section\\\" style=\\\"padding-top:96px;\\\">\\n    <\/p>\n<div class=\\\"npk-wrap\\\">\\n      <\/p>\n<div class=\\\"npk-split\\\">\\n\\n        <\/p>\n<div>\\n          <\/p>\n<div class=\\\"npk-eyebrow\\\">Paperboard Materials<\\\/div>\\n\\n          <\/p>\n<h1 class=\\\"npk-title\\\">\\n            Paperboard material selection for folding carton packaging\\n          <\\\/h1>\\n\\n          <\/p>\n<p class=\\\"npk-lead\\\">\\n            The board grade behind a folding carton affects print quality, stiffness, scoring, product protection, food-contact suitability, sustainability claims, and converting performance. SBS, SUS, CRB, FBB, URB, and micro-flute are different packaging substrates with different strengths, limitations, and end-use requirements.\\n          <\\\/p>\\n\\n          <\/p>\n<div class=\\\"npk-pill-row\\\" aria-label=\\\"Paperboard grade topics\\\">\\n            <\/p>\n<div class=\\\"npk-pill\\\"><span class=\\\"npk-dot\\\"><\\\/span> SBS<\\\/div>\\n            <\/p>\n<div class=\\\"npk-pill\\\"><span class=\\\"npk-dot\\\"><\\\/span> SUS \\\/ CUK<\\\/div>\\n            <\/p>\n<div class=\\\"npk-pill\\\"><span class=\\\"npk-dot\\\"><\\\/span> CRB<\\\/div>\\n            <\/p>\n<div class=\\\"npk-pill\\\"><span class=\\\"npk-dot\\\"><\\\/span> FBB<\\\/div>\\n            <\/p>\n<div class=\\\"npk-pill\\\"><span class=\\\"npk-dot\\\"><\\\/span> URB<\\\/div>\\n            <\/p>\n<div class=\\\"npk-pill\\\"><span class=\\\"npk-dot\\\"><\\\/span> Micro-flute<\\\/div>\\n          <\\\/div>\\n        <\\\/div>\\n\\n        <\/p>\n<aside class=\\\"npk-panel\\\">\\n          <\/p>\n<h3>The substrate is part of the specification<\\\/h3>\\n          <\/p>\n<p>\\n            Netpak evaluates board choice against product weight, retail presentation, food-contact profile, print method, finishing requirements, sustainability goals, and filling-line performance.<sup><a href=\\\"#ref-1\\\">1<\\\/a><\\\/sup>\\n          <\\\/p>\\n\\n          <\/p>\n<ul class=\\\"npk-panel__list\\\">\\n            <\/p>\n<li><span class=\\\"npk-check\\\">\\u2713<\\\/span><span>Match stiffness and caliper to the carton structure.<\\\/span><\\\/li>\\n\n<li><span class=\\\"npk-check\\\">\\u2713<\\\/span><span>Choose surface quality based on print and finishing needs.<\\\/span><\\\/li>\\n\n<li><span class=\\\"npk-check\\\">\\u2713<\\\/span><span>Review coatings, windows, and food-contact requirements before production.<\\\/span><\\\/li>\\n          <\\\/ul>\\n        <\\\/aside>\\n\\n      <\\\/div>\\n    <\\\/div>\\n  <\\\/section>\\n\\n<br \/>\n<hr class=\\\"npk-rule\\\">\\n\\n  <!-- WHO NETPAK IS -->\\n  <\/p>\n<section class=\\\"npk-section npk-section--soft\\\">\\n    <\/p>\n<div class=\\\"npk-wrap\\\">\\n\\n      <\/p>\n<div class=\\\"npk-split\\\">\\n        <\/p>\n<div>\\n          <\/p>\n<div class=\\\"npk-eyebrow\\\">Netpak Capability<\\\/div>\\n          <\/p>\n<h2 class=\\\"npk-gradient-title\\\">A Canadian folding carton manufacturer with paperboard grade expertise<\\\/h2>\\n\\n          <\/p>\n<div class=\\\"npk-body\\\" style=\\\"margin-top:20px;\\\">\\n            <\/p>\n<p>\\n              Netpak manufactures custom folding cartons for North American brands across food, beverage, pharmaceutical, health and beauty, consumer goods, electronics, and regulated product categories. Its paperboard grade offering includes SBS, SUS, CRB, FBB, URB, and micro-flute for distinct packaging requirements.<sup><a href=\\\"#ref-1\\\">1<\\\/a><\\\/sup>\\n            <\\\/p>\\n\\n            <\/p>\n<p>\\n              The correct paperboard grade depends on the full carton system. A premium cosmetic carton, frozen food sleeve, beverage carrier, pharmaceutical folding carton, and club-store package can all require different board behavior, even when the finished package looks similar.\\n            <\\\/p>\\n          <\\\/div>\\n        <\\\/div>\\n\\n        <\/p>\n<div class=\\\"npk-img-card\\\">\\n          <img\\n            src=\\\"\\\/wp-content\\\/uploads\\\/2023\\\/01\\\/img_carton_sbs-2-opt.webp\\\"\\n            alt=\\\"Solid bleached sulfate paperboard used for folding carton packaging\\\"\\n            width=\\\"1500\\\"\\n            height=\\\"1061\\\"\\n            loading=\\\"lazy\\\"\\n            decoding=\\\"async\\\"\\n          >\\n          <\/p>\n<div class=\\\"npk-img-caption\\\">\\n            Paperboard selection should be tied to print surface, score performance, product protection, food-contact needs, and the carton\\u2019s end-use environment.\\n          <\\\/div>\\n        <\\\/div>\\n      <\\\/div>\\n\\n      <\/p>\n<div class=\\\"npk-mini-grid\\\" aria-label=\\\"Paperboard selection factors\\\">\\n        <\/p>\n<div class=\\\"npk-mini\\\">\\n          <strong>Print performance<\\\/strong>\\n          <span>Board surface affects ink holdout, color consistency, varnish behavior, and premium finishing.<\\\/span>\\n        <\\\/div>\\n\\n        <\/p>\n<div class=\\\"npk-mini\\\">\\n          <strong>Structural behavior<\\\/strong>\\n          <span>Stiffness, caliper, grain direction, and tear resistance affect folding, loading, stacking, and shelf presence.<\\\/span>\\n        <\\\/div>\\n\\n        <\/p>\n<div class=\\\"npk-mini\\\">\\n          <strong>Compliance profile<\\\/strong>\\n          <span>Food-contact, recycled content, coatings, and recyclability claims need to be reviewed before artwork locks.<\\\/span>\\n        <\\\/div>\\n      <\\\/div>\\n\\n    <\\\/div>\\n  <\\\/section>\\n\\n  <!-- MATERIAL OVERVIEW -->\\n  <\/p>\n<section class=\\\"npk-section\\\">\\n    <\/p>\n<div class=\\\"npk-wrap\\\">\\n\\n      <\/p>\n<div class=\\\"npk-eyebrow\\\">Board Grades<\\\/div>\\n      <\/p>\n<h2 class=\\\"npk-gradient-title\\\">The main paperboard substrates used in folding carton packaging<\\\/h2>\\n\\n      <\/p>\n<p class=\\\"npk-lead\\\">\\n        Folding carton paperboard is usually selected from virgin fiber grades, recycled fiber grades, or corrugated micro-flute structures. The right choice depends on how the package must print, fold, protect, ship, and present at retail.\\n      <\\\/p>\\n\\n      <\/p>\n<div class=\\\"npk-material-grid\\\">\\n\\n        <\/p>\n<article class=\\\"npk-material\\\">\\n          <img\\n            src=\\\"\\\/wp-content\\\/uploads\\\/2023\\\/01\\\/img_carton_sbs-2-opt.webp\\\"\\n            alt=\\\"SBS paperboard for premium folding carton packaging\\\"\\n            width=\\\"1500\\\"\\n            height=\\\"1061\\\"\\n            loading=\\\"lazy\\\"\\n            decoding=\\\"async\\\"\\n          >\\n          <\/p>\n<div class=\\\"npk-material__body\\\">\\n            <\/p>\n<h3>SBS<\\\/h3>\\n            <\/p>\n<p>\\n              Solid bleached sulfate is a premium white paperboard grade associated with high-quality print performance and retail presentation.<sup><a href=\\\"#ref-2\\\">2<\\\/a><\\\/sup>\\n            <\\\/p>\\n          <\\\/div>\\n        <\\\/article>\\n\\n        <\/p>\n<article class=\\\"npk-material\\\">\\n          <img\\n            src=\\\"\\\/wp-content\\\/uploads\\\/2023\\\/01\\\/img_carton_sus-q76.webp\\\"\\n            alt=\\\"SUS paperboard for strong folding carton packaging\\\"\\n            width=\\\"1500\\\"\\n            height=\\\"1060\\\"\\n            loading=\\\"lazy\\\"\\n            decoding=\\\"async\\\"\\n          >\\n          <\/p>\n<div class=\\\"npk-material__body\\\">\\n            <\/p>\n<h3>SUS \\\/ CUK<\\\/h3>\\n            <\/p>\n<p>\\n              Solid unbleached sulfate, often discussed with coated unbleached kraft, is selected when strength, stiffness, and durability matter.\\n            <\\\/p>\\n          <\\\/div>\\n        <\\\/article>\\n\\n        <\/p>\n<article class=\\\"npk-material\\\">\\n          <img\\n            src=\\\"\\\/wp-content\\\/uploads\\\/2023\\\/01\\\/img_carton_crb-1.webp\\\"\\n            alt=\\\"CRB recycled paperboard for folding carton packaging\\\"\\n            width=\\\"1500\\\"\\n            height=\\\"1060\\\"\\n            loading=\\\"lazy\\\"\\n            decoding=\\\"async\\\"\\n          >\\n          <\/p>\n<div class=\\\"npk-material__body\\\">\\n            <\/p>\n<h3>CRB<\\\/h3>\\n            <\/p>\n<p>\\n              Coated recycled board is used when recycled content and value matter, especially for dry goods and general consumer packaging.\\n            <\\\/p>\\n          <\\\/div>\\n        <\\\/article>\\n\\n        <\/p>\n<article class=\\\"npk-material\\\">\\n          <img\\n            src=\\\"\\\/wp-content\\\/uploads\\\/2023\\\/01\\\/img_carton_fbb-1.webp\\\"\\n            alt=\\\"FBB folding box board for folding carton packaging\\\"\\n            width=\\\"1500\\\"\\n            height=\\\"1060\\\"\\n            loading=\\\"lazy\\\"\\n            decoding=\\\"async\\\"\\n          >\\n          <\/p>\n<div class=\\\"npk-material__body\\\">\\n            <\/p>\n<h3>FBB<\\\/h3>\\n            <\/p>\n<p>\\n              Folding box board balances printability, stiffness, and material efficiency, often using a layered construction that supports lightweight packaging.\\n            <\\\/p>\\n          <\\\/div>\\n        <\\\/article>\\n\\n        <\/p>\n<article class=\\\"npk-material\\\">\\n          <img\\n            src=\\\"\\\/wp-content\\\/uploads\\\/2023\\\/01\\\/img_carton_urb-q84-opt.webp\\\"\\n            alt=\\\"URB uncoated recycled board for carton packaging\\\"\\n            width=\\\"1500\\\"\\n            height=\\\"1061\\\"\\n            loading=\\\"lazy\\\"\\n            decoding=\\\"async\\\"\\n          >\\n          <\/p>\n<div class=\\\"npk-material__body\\\">\\n            <\/p>\n<h3>URB<\\\/h3>\\n            <\/p>\n<p>\\n              Uncoated recycled board is a practical recycled substrate for applications where premium coated print surface is not the main priority.\\n            <\\\/p>\\n          <\\\/div>\\n        <\\\/article>\\n\\n        <\/p>\n<article class=\\\"npk-material\\\">\\n          <img\\n            src=\\\"\\\/wp-content\\\/uploads\\\/2023\\\/01\\\/img_carton_ondule_flute.webp\\\"\\n            alt=\\\"Micro-flute corrugated board for retail packaging\\\"\\n            width=\\\"1500\\\"\\n            height=\\\"1060\\\"\\n            loading=\\\"lazy\\\"\\n            decoding=\\\"async\\\"\\n          >\\n          <\/p>\n<div class=\\\"npk-material__body\\\">\\n            <\/p>\n<h3>Micro-flute<\\\/h3>\\n            <\/p>\n<p>\\n              Micro-flute corrugated board adds rigidity and protection while supporting retail packaging formats that need strength beyond standard folding carton board.<sup><a href=\\\"#ref-8\\\">8<\\\/a><\\\/sup>\\n            <\\\/p>\\n          <\\\/div>\\n        <\\\/article>\\n\\n      <\\\/div>\\n\\n    <\\\/div>\\n  <\\\/section>\\n\\n  <!-- COMPARISON TABLE -->\\n  <\/p>\n<section class=\\\"npk-section npk-section--soft\\\">\\n    <\/p>\n<div class=\\\"npk-wrap\\\">\\n\\n      <\/p>\n<div class=\\\"npk-eyebrow\\\">Material Comparison<\\\/div>\\n      <\/p>\n<h2 class=\\\"npk-h2\\\">How SBS, SUS, CRB, FBB, URB, and micro-flute compare<\\\/h2>\\n\\n      <\/p>\n<p class=\\\"npk-lead\\\">\\n        The strongest paperboard choice is the grade that fits the product, package structure, print system, filling process, and buyer requirements. A lower-cost material can become expensive if it causes print limits, score cracking, bulge, glue failure, odor risk, or compliance rework.\\n      <\\\/p>\\n\\n      <\/p>\n<div class=\\\"npk-table-wrap\\\">\\n        <\/p>\n<table class=\\\"npk-table\\\">\\n          <\/p>\n<thead>\\n            <\/p>\n<tr>\\n              <\/p>\n<th>Board grade<\\\/th>\\n              <\/p>\n<th>Best fit<\\\/th>\\n              <\/p>\n<th>Key strengths<\\\/th>\\n              <\/p>\n<th>Specification watchouts<\\\/th>\\n            <\\\/tr>\\n          <\\\/thead>\\n          <\/p>\n<tbody>\\n            <\/p>\n<tr>\\n              <\/p>\n<td><strong>SBS<\\\/strong><br \/>Solid bleached sulfate<\\\/td>\\n              <\/p>\n<td>Premium retail packaging, health and beauty packaging, pharmaceutical cartons, food cartons, frozen food cartons.<\\\/td>\\n              <\/p>\n<td>White appearance, strong print surface, clean graphics, premium finishing compatibility.<\\\/td>\\n              <\/p>\n<td>Higher material cost. Confirm moisture exposure, coating needs, and food-contact conditions.<\\\/td>\\n            <\\\/tr>\\n            <\/p>\n<tr>\\n              <\/p>\n<td><strong>SUS \\\/ CUK<\\\/strong><br \/>Solid unbleached sulfate \\\/ coated unbleached kraft<\\\/td>\\n              <\/p>\n<td>Beverage carriers, durable retail cartons, dry food packaging, electronics packaging, heavier products.<\\\/td>\\n              <\/p>\n<td>Stiffness, tear resistance, natural kraft appearance, good durability.<\\\/td>\\n              <\/p>\n<td>Different print character than white premium board. Confirm brand color expectations and coating requirements.<\\\/td>\\n            <\\\/tr>\\n            <\/p>\n<tr>\\n              <\/p>\n<td><strong>CRB<\\\/strong><br \/>Coated recycled board<\\\/td>\\n              <\/p>\n<td>Cereal cartons, dry goods, multipurpose consumer packaging, value-oriented folding cartons.<\\\/td>\\n              <\/p>\n<td>Recycled content, broad availability, useful for many dry product applications.<\\\/td>\\n              <\/p>\n<td>Surface and strength tolerances can differ from virgin grades. Confirm moisture sensitivity and print expectations.<\\\/td>\\n            <\\\/tr>\\n            <\/p>\n<tr>\\n              <\/p>\n<td><strong>FBB<\\\/strong><br \/>Folding box board<\\\/td>\\n              <\/p>\n<td>Food, personal care, retail cartons, lightweight packaging where stiffness and printability both matter.<\\\/td>\\n              <\/p>\n<td>Efficient stiffness-to-weight profile, good print surface, practical balance between performance and material use.<\\\/td>\\n              <\/p>\n<td>Confirm caliper, surface, and converting behavior against product weight and carton style.<\\\/td>\\n            <\\\/tr>\\n            <\/p>\n<tr>\\n              <\/p>\n<td><strong>URB<\\\/strong><br \/>Uncoated recycled board<\\\/td>\\n              <\/p>\n<td>Internal packaging, secondary packaging, industrial or value applications where coated graphics are not required.<\\\/td>\\n              <\/p>\n<td>Recycled fiber content, practical value, useful for non-premium applications.<\\\/td>\\n              <\/p>\n<td>Limited retail-facing print quality. Review print, scuff, and presentation requirements.<\\\/td>\\n            <\\\/tr>\\n            <\/p>\n<tr>\\n              <\/p>\n<td><strong>Micro-flute<\\\/strong><br \/>Fine corrugated board<\\\/td>\\n              <\/p>\n<td>Club-store packs, electronics, small appliances, heavier retail packs, protective display packaging.<\\\/td>\\n              <\/p>\n<td>Rigidity, cushioning, stacking support, protection, retail structure.<\\\/td>\\n              <\/p>\n<td>Confirm flute profile, direct print or litho-laminate strategy, score layout, and finished package dimensions.<\\\/td>\\n            <\\\/tr>\\n          <\\\/tbody>\\n        <\\\/table>\\n      <\\\/div>\\n\\n    <\\\/div>\\n  <\\\/section>\\n\\n  <!-- SBS -->\\n  <\/p>\n<section class=\\\"npk-section\\\">\\n    <\/p>\n<div class=\\\"npk-wrap\\\">\\n      <\/p>\n<div class=\\\"npk-split\\\">\\n\\n        <\/p>\n<div>\\n          <\/p>\n<div class=\\\"npk-eyebrow\\\">SBS Paperboard<\\\/div>\\n          <\/p>\n<h2 class=\\\"npk-gradient-title\\\">SBS is the premium grade for high-impact folding carton packaging<\\\/h2>\\n\\n          <\/p>\n<div class=\\\"npk-body\\\" style=\\\"margin-top:20px;\\\">\\n            <\/p>\n<p>\\n              Solid bleached sulfate, commonly called SBS, is a white paperboard grade used when clean graphics, premium appearance, and reliable print reproduction matter. The Paperboard Packaging Council describes SBS as a premium grade with a brilliant white appearance and a clay-coated surface that supports high-quality printing.<sup><a href=\\\"#ref-2\\\">2<\\\/a><\\\/sup>\\n            <\\\/p>\\n\\n            <\/p>\n<p>\\n              SBS is often the right substrate for health and beauty packaging, pharmaceutical packaging, food packaging, frozen food packaging, and other folding carton programs where brand presentation cannot look compromised. Its smooth surface supports offset printing, strong color control, varnish systems, foil, embossing, debossing, and other premium finishing decisions.\\n            <\\\/p>\\n\\n            <\/p>\n<p>\\n              The tradeoff is cost and specification discipline. A premium substrate should be selected because it solves a packaging requirement. If the product needs a bright white surface, clean fine print, premium decoration, or food packaging review, SBS deserves early consideration.\\n            <\\\/p>\\n          <\\\/div>\\n        <\\\/div>\\n\\n        <\/p>\n<div class=\\\"npk-card npk-card--dark\\\">\\n          <\/p>\n<h3>When to consider SBS<\\\/h3>\\n          <\/p>\n<ul class=\\\"npk-panel__list\\\">\\n            <\/p>\n<li><span class=\\\"npk-check\\\">\\u2713<\\\/span><span>Premium retail carton graphics.<\\\/span><\\\/li>\\n\n<li><span class=\\\"npk-check\\\">\\u2713<\\\/span><span>Cosmetic and personal care packaging.<\\\/span><\\\/li>\\n\n<li><span class=\\\"npk-check\\\">\\u2713<\\\/span><span>Pharmaceutical folding cartons with precise print requirements.<\\\/span><\\\/li>\\n\n<li><span class=\\\"npk-check\\\">\\u2713<\\\/span><span>Food cartons that require careful material and coating review.<\\\/span><\\\/li>\\n          <\\\/ul>\\n        <\\\/div>\\n\\n      <\\\/div>\\n    <\\\/div>\\n  <\\\/section>\\n\\n  <!-- SUS \\\/ CUK -->\\n<br \/>\n<section class=\\\"npk-section npk-section--soft\\\">\\n    <\/p>\n<div class=\\\"npk-wrap\\\">\\n      <\/p>\n<div class=\\\"npk-split\\\">\\n\\n        <\/p>\n<div class=\\\"npk-img-card\\\">\\n          <img\\n            src=\\\"\\\/wp-content\\\/uploads\\\/2023\\\/01\\\/img_carton_sus-q76.webp\\\"\\n            alt=\\\"SUS and CUK unbleached kraft paperboard for folding carton packaging\\\"\\n            width=\\\"1500\\\"\\n            height=\\\"1060\\\"\\n            loading=\\\"lazy\\\"\\n            decoding=\\\"async\\\"\\n          >\\n          <\/p>\n<div class=\\\"npk-img-caption\\\">\\n            SUS and CUK are often considered where strength, stiffness, durability, and a natural kraft appearance are important.\\n          <\\\/div>\\n        <\\\/div>\\n\\n        <\/p>\n<div>\\n          <\/p>\n<div class=\\\"npk-eyebrow\\\">SUS and CUK<\\\/div>\\n          <\/p>\n<h2 class=\\\"npk-h2\\\">Unbleached kraft grades support strength-driven folding carton programs<\\\/h2>\\n\\n          <\/p>\n<div class=\\\"npk-body\\\" style=\\\"margin-top:20px;\\\">\\n            <\/p>\n<p>\\n              Solid unbleached sulfate and coated unbleached kraft are used when the carton needs durability, tear resistance, stiffness, and a strong structural profile. These materials often fit beverage carriers, dry food cartons, hardware packaging, electronics packaging, and applications where package strength is more important than a bright white premium surface.\\n            <\\\/p>\\n\\n            <\/p>\n<p>\\n              The natural color of unbleached kraft can also support a sustainability-oriented brand appearance, but the visual tone must be intentional. Kraft appearance does not automatically make a package more sustainable. Material claims should be specific, documented, and tied to the actual board, coating, and converting choices.\\n            <\\\/p>\\n\\n            <\/p>\n<p>\\n              For folding carton packaging, SUS and CUK decisions should be reviewed with print expectations. Brand colors, white ink requirements, varnish choices, coating zones, and finishing effects may behave differently than they do on SBS.\\n            <\\\/p>\\n          <\\\/div>\\n        <\\\/div>\\n\\n      <\\\/div>\\n    <\\\/div>\\n  <\\\/section>\\n\\n  <!-- CRB \\\/ RECYCLED -->\\n  <\/p>\n<section class=\\\"npk-section\\\">\\n    <\/p>\n<div class=\\\"npk-wrap\\\">\\n\\n      <\/p>\n<div class=\\\"npk-eyebrow\\\">Recycled Board<\\\/div>\\n      <\/p>\n<h2 class=\\\"npk-gradient-title\\\">CRB and URB support recycled content goals when the application fits<\\\/h2>\\n\\n      <\/p>\n<p class=\\\"npk-lead\\\">\\n        Recycled paperboard is useful in many folding carton programs, especially dry goods and secondary packaging. It still needs a real performance review. Recycled content, food-contact suitability, print quality, moisture behavior, and recyclability are separate questions.\\n      <\\\/p>\\n\\n      <\/p>\n<div class=\\\"npk-grid npk-grid--2\\\" style=\\\"margin-top:34px;\\\">\\n\\n        <\/p>\n<article class=\\\"npk-card\\\">\\n          <span class=\\\"npk-card__tag\\\">CRB<\\\/span>\\n          <\/p>\n<h3>Coated recycled board for value and recycled content<\\\/h3>\\n          <\/p>\n<p>\\n            CRB is used for many dry product folding cartons where recycled content and cost control are important. It can work well for cereal, dry mixes, household products, and general consumer goods. Specification should account for print surface, moisture sensitivity, odor risk, and strength requirements.\\n          <\\\/p>\\n        <\\\/article>\\n\\n        <\/p>\n<article class=\\\"npk-card\\\">\\n          <span class=\\\"npk-card__tag\\\">URB<\\\/span>\\n          <\/p>\n<h3>Uncoated recycled board for practical secondary packaging<\\\/h3>\\n          <\/p>\n<p>\\n            URB is useful where a coated retail print surface is not required. It can support internal packaging, secondary packaging, partitions, and value-driven applications where presentation is less critical than function.\\n          <\\\/p>\\n        <\\\/article>\\n\\n      <\\\/div>\\n\\n      <\/p>\n<div class=\\\"npk-band npk-band--green\\\" style=\\\"margin-top:34px;\\\">\\n        <\/p>\n<h3 style=\\\"margin:0 0 12px;color:var(--npk-blue-dark);font-size:24px;line-height:1.2;font-weight:800;\\\">\\n          Food-contact caution\\n        <\\\/h3>\\n        <\/p>\n<p class=\\\"npk-body\\\">\\n          In the United States, FDA\\u2019s paper and paperboard food-contact regulations are found in 21 CFR Part 176, including provisions for paper and paperboard in contact with aqueous and fatty foods and dry food.<sup><a href=\\\"#ref-5\\\">5<\\\/a>,<a href=\\\"#ref-6\\\">6<\\\/a><\\\/sup> Recycled fiber for food packaging needs review against the actual use case, product type, and applicable regulatory requirements. Recycled content should never be treated as a blanket approval for direct food-contact packaging.\\n        <\\\/p>\\n      <\\\/div>\\n\\n    <\\\/div>\\n  <\\\/section>\\n\\n  <!-- FBB -->\\n  <\/p>\n<section class=\\\"npk-section npk-section--soft\\\">\\n    <\/p>\n<div class=\\\"npk-wrap\\\">\\n      <\/p>\n<div class=\\\"npk-split\\\">\\n\\n        <\/p>\n<div>\\n          <\/p>\n<div class=\\\"npk-eyebrow\\\">FBB<\\\/div>\\n          <\/p>\n<h2 class=\\\"npk-h2\\\">Folding box board balances stiffness, surface quality, and material efficiency<\\\/h2>\\n\\n          <\/p>\n<div class=\\\"npk-body\\\" style=\\\"margin-top:20px;\\\">\\n            <\/p>\n<p>\\n              Folding box board, or FBB, is often selected when a packaging program needs a reliable balance between surface quality, stiffness, and material efficiency. Its layered construction can support a lighter board structure while maintaining useful rigidity for many folding carton applications.\\n            <\\\/p>\\n\\n            <\/p>\n<p>\\n              FBB can be a strong candidate for food packaging, personal care packaging, retail cartons, and packaging programs that need good print performance without defaulting to the most premium white board option.\\n            <\\\/p>\\n\\n            <\/p>\n<p>\\n              The decision should be made at the specification level. Caliper, grain direction, coating, converting performance, scoring, and product weight should be reviewed before assuming FBB can replace SBS, SUS, or CRB.\\n            <\\\/p>\\n          <\\\/div>\\n        <\\\/div>\\n\\n        <\/p>\n<div class=\\\"npk-img-card\\\">\\n          <img\\n            src=\\\"\\\/wp-content\\\/uploads\\\/2023\\\/01\\\/img_carton_fbb-1.webp\\\"\\n            alt=\\\"FBB folding box board used in carton packaging\\\"\\n            width=\\\"1500\\\"\\n            height=\\\"1060\\\"\\n            loading=\\\"lazy\\\"\\n            decoding=\\\"async\\\"\\n          >\\n          <\/p>\n<div class=\\\"npk-img-caption\\\">\\n            FBB can be useful when the carton needs a balance of print quality, stiffness, and material efficiency.\\n          <\\\/div>\\n        <\\\/div>\\n\\n      <\\\/div>\\n    <\\\/div>\\n  <\\\/section>\\n\\n  <!-- MICRO-FLUTE -->\\n  <\/p>\n<section class=\\\"npk-section\\\">\\n    <\/p>\n<div class=\\\"npk-wrap\\\">\\n\\n      <\/p>\n<div class=\\\"npk-eyebrow\\\">Micro-Flute<\\\/div>\\n      <\/p>\n<h2 class=\\\"npk-gradient-title\\\">Micro-flute supports stronger retail cartons and protective packaging<\\\/h2>\\n\\n      <\/p>\n<div class=\\\"npk-split\\\" style=\\\"margin-top:30px;\\\">\\n\\n        <\/p>\n<div class=\\\"npk-img-card\\\">\\n          <img\\n            src=\\\"\\\/wp-content\\\/uploads\\\/2023\\\/01\\\/img_carton_ondule_flute.webp\\\"\\n            alt=\\\"Micro-flute corrugated board for folding carton and retail packaging\\\"\\n            width=\\\"1500\\\"\\n            height=\\\"1060\\\"\\n            loading=\\\"lazy\\\"\\n            decoding=\\\"async\\\"\\n          >\\n          <\/p>\n<div class=\\\"npk-img-caption\\\">\\n            Micro-flute adds structural support for retail packaging that needs more rigidity than standard folding carton board.\\n          <\\\/div>\\n        <\\\/div>\\n\\n        <\/p>\n<div>\\n          <\/p>\n<div class=\\\"npk-body\\\">\\n            <\/p>\n<p>\\n              Corrugated board uses a fluted medium between linerboards to create a stronger structure. Fibre Box Association describes common flute profiles including A, B, C, and E flute, with E flute having a finer profile than larger shipping-box flutes.<sup><a href=\\\"#ref-8\\\">8<\\\/a><\\\/sup> Smaller flute profiles can support retail packaging where structure and surface presentation both matter.\\n            <\\\/p>\\n\\n            <\/p>\n<p>\\n              Micro-flute is useful for small appliances, electronics, beverage carriers, heavier retail packs, club-store packaging, toy packaging, and applications that need protection with a more polished shelf presence than standard shipping corrugated.\\n            <\\\/p>\\n\\n            <\/p>\n<p>\\n              Netpak\\u2019s paperboard offering includes micro-flute as part of its broader folding carton substrate capabilities.<sup><a href=\\\"#ref-1\\\">1<\\\/a><\\\/sup> For brands comparing folding carton board with micro-flute corrugated, the decision should include product weight, stacking, distribution, window size, print method, and shelf presentation.\\n            <\\\/p>\\n          <\\\/div>\\n\\n          <\/p>\n<div class=\\\"npk-card npk-card--dark\\\" style=\\\"margin-top:26px;\\\">\\n            <\/p>\n<h3>Micro-flute specification questions<\\\/h3>\\n            <\/p>\n<ul class=\\\"npk-panel__list\\\">\\n              <\/p>\n<li><span class=\\\"npk-check\\\">\\u2713<\\\/span><span>Does the product need cushioning or stacking support?<\\\/span><\\\/li>\\n\n<li><span class=\\\"npk-check\\\">\\u2713<\\\/span><span>Will the package be direct printed, laminated, or finished another way?<\\\/span><\\\/li>\\n\n<li><span class=\\\"npk-check\\\">\\u2713<\\\/span><span>Does the carton need a large window or stronger retail structure?<\\\/span><\\\/li>\\n\n<li><span class=\\\"npk-check\\\">\\u2713<\\\/span><span>Will the package ship through e-commerce, retail distribution, or club-store handling?<\\\/span><\\\/li>\\n            <\\\/ul>\\n          <\\\/div>\\n        <\\\/div>\\n\\n      <\\\/div>\\n\\n    <\\\/div>\\n  <\\\/section>\\n\\n  <!-- PRINT PERFORMANCE -->\\n<br \/>\n<section class=\\\"npk-section npk-section--soft\\\">\\n    <\/p>\n<div class=\\\"npk-wrap\\\">\\n\\n      <\/p>\n<div class=\\\"npk-split\\\">\\n\\n        <\/p>\n<div>\\n          <\/p>\n<div class=\\\"npk-eyebrow\\\">Print Performance<\\\/div>\\n          <\/p>\n<h2 class=\\\"npk-h2\\\">Paperboard choice changes how graphics print, finish, and hold color<\\\/h2>\\n\\n          <\/p>\n<div class=\\\"npk-body\\\" style=\\\"margin-top:20px;\\\">\\n            <\/p>\n<p>\\n              A folding carton substrate directly affects print performance. SBS may support cleaner fine detail and premium graphics. CRB may require different ink strength or press adjustment. Kraft grades may change brand color perception. Micro-flute may require a different print approach than conventional folding carton board.\\n            <\\\/p>\\n\\n            <\/p>\n<p>\\n              This matters because packaging buyers often approve color on screen before the substrate is fully resolved. That creates avoidable risk. Board selection, color targets, coating strategy, varnish, foil, embossing, and dieline should be reviewed together.\\n            <\\\/p>\\n\\n            <\/p>\n<p>\\n              Netpak\\u2019s folding carton process is strongest when substrate, prepress, structural design, and finishing decisions are aligned before the carton is treated as press-ready.\\n            <\\\/p>\\n          <\\\/div>\\n        <\\\/div>\\n\\n        <\/p>\n<div class=\\\"npk-img-card\\\">\\n          <img\\n            src=\\\"\\\/wp-content\\\/uploads\\\/2022\\\/12\\\/img_couleurs-2.webp\\\"\\n            alt=\\\"Printing color control for folding carton packaging\\\"\\n            width=\\\"1500\\\"\\n            height=\\\"1060\\\"\\n            loading=\\\"lazy\\\"\\n            decoding=\\\"async\\\"\\n          >\\n          <\/p>\n<div class=\\\"npk-img-caption\\\">\\n            Color performance depends on the paperboard surface, coating, ink system, and finishing plan.\\n          <\\\/div>\\n        <\\\/div>\\n\\n      <\\\/div>\\n\\n    <\\\/div>\\n  <\\\/section>\\n\\n  <!-- SPECIFICATION CONTROL -->\\n  <\/p>\n<section class=\\\"npk-section\\\">\\n    <\/p>\n<div class=\\\"npk-wrap\\\">\\n\\n      <\/p>\n<div class=\\\"npk-eyebrow\\\">Specification Control<\\\/div>\\n      <\/p>\n<h2 class=\\\"npk-gradient-title\\\">The board grade should be finalized with the dieline<\\\/h2>\\n\\n      <\/p>\n<p class=\\\"npk-lead\\\">\\n        Paperboard material affects score depth, fold behavior, glue performance, carton squareness, dust, cracking, bulge resistance, and machine performance. A substrate change late in the process can force structural and artwork changes.\\n      <\\\/p>\\n\\n      <\/p>\n<div class=\\\"npk-split\\\" style=\\\"margin-top:34px;\\\">\\n\\n        <\/p>\n<div class=\\\"npk-img-card\\\">\\n          <img\\n            src=\\\"\\\/wp-content\\\/uploads\\\/2022\\\/12\\\/img_dieline-1.webp\\\"\\n            alt=\\\"Dieline and structural design for folding carton packaging\\\"\\n            width=\\\"1500\\\"\\n            height=\\\"1060\\\"\\n            loading=\\\"lazy\\\"\\n            decoding=\\\"async\\\"\\n          >\\n          <\/p>\n<div class=\\\"npk-img-caption\\\">\\n            Dieline, grain direction, score layout, glue areas, and board grade should be reviewed as one packaging specification.\\n          <\\\/div>\\n        <\\\/div>\\n\\n        <\/p>\n<div class=\\\"npk-card\\\">\\n          <\/p>\n<h3>Inputs Netpak should review before board selection<\\\/h3>\\n          <\/p>\n<ul class=\\\"npk-list\\\">\\n            <\/p>\n<li><span class=\\\"npk-num\\\">1<\\\/span><span>Product dimensions, weight, and fragility.<\\\/span><\\\/li>\\n\n<li><span class=\\\"npk-num\\\">2<\\\/span><span>Retail channel, distribution method, and stacking conditions.<\\\/span><\\\/li>\\n\n<li><span class=\\\"npk-num\\\">3<\\\/span><span>Food-contact, pharmaceutical, or regulated product requirements.<\\\/span><\\\/li>\\n\n<li><span class=\\\"npk-num\\\">4<\\\/span><span>Print method, brand color requirements, coating, and finishing effects.<\\\/span><\\\/li>\\n\n<li><span class=\\\"npk-num\\\">5<\\\/span><span>Window patches, inserts, barriers, laminations, and recyclability claims.<\\\/span><\\\/li>\\n\n<li><span class=\\\"npk-num\\\">6<\\\/span><span>Filling-line speed, gluing method, packing process, and storage conditions.<\\\/span><\\\/li>\\n          <\\\/ul>\\n        <\\\/div>\\n\\n      <\\\/div>\\n\\n    <\\\/div>\\n  <\\\/section>\\n\\n  <!-- SUSTAINABILITY -->\\n<br \/>\n<section class=\\\"npk-section npk-section--soft\\\">\\n    <\/p>\n<div class=\\\"npk-wrap\\\">\\n\\n      <\/p>\n<div class=\\\"npk-eyebrow\\\">Sustainability<\\\/div>\\n      <\/p>\n<h2 class=\\\"npk-h2\\\">Sustainable paperboard packaging requires more than choosing recycled content<\\\/h2>\\n\\n      <\/p>\n<div class=\\\"npk-body\\\" style=\\\"margin-top:20px;max-width:920px;\\\">\\n        <\/p>\n<p>\\n          Recycled content can be valuable, but sustainability decisions in folding carton packaging should include material weight, product protection, spoilage prevention, recyclability, coatings, adhesives, windows, inks, logistics, and the actual end market for the package.\\n        <\\\/p>\\n\\n        <\/p>\n<p>\\n          CEPI\\u2019s recyclability test method is designed to evaluate paper and board recyclability by emulating key recycling mill phases such as pulping, screening, and sheet formation.<sup><a href=\\\"#ref-7\\\">7<\\\/a><\\\/sup> This is important because paper-based packaging can remain recyclable while coatings, barriers, laminations, and other functional features may affect recycling performance.\\n        <\\\/p>\\n\\n        <\/p>\n<p>\\n          For Netpak customers, the practical question is which material protects the product, keeps the carton efficient, supports accurate claims, and fits the buyer\\u2019s packaging requirements.\\n        <\\\/p>\\n      <\\\/div>\\n\\n      <\/p>\n<div class=\\\"npk-grid npk-grid--3\\\" style=\\\"margin-top:34px;\\\">\\n\\n        <\/p>\n<article class=\\\"npk-card\\\">\\n          <\/p>\n<h3>Use recycled board where it fits<\\\/h3>\\n          <\/p>\n<p>\\n            CRB and URB can be strong options for dry goods, secondary packaging, and value-driven packaging, but they still need product-specific review.\\n          <\\\/p>\\n        <\\\/article>\\n\\n        <\/p>\n<article class=\\\"npk-card\\\">\\n          <\/p>\n<h3>Avoid unsupported claims<\\\/h3>\\n          <\/p>\n<p>\\n            Recyclability, recycled content, compostability, and plastic reduction claims should match the actual packaging material and market requirements.\\n          <\\\/p>\\n        <\\\/article>\\n\\n        <\/p>\n<article class=\\\"npk-card\\\">\\n          <\/p>\n<h3>Protect the product first<\\\/h3>\\n          <\/p>\n<p>\\n            Under-specifying board can create damage, waste, returns, and production issues. Packaging sustainability starts with the package doing its job.\\n          <\\\/p>\\n        <\\\/article>\\n\\n      <\\\/div>\\n\\n    <\\\/div>\\n  <\\\/section>\\n\\n  <!-- PROCUREMENT -->\\n  <\/p>\n<section class=\\\"npk-section\\\">\\n    <\/p>\n<div class=\\\"npk-wrap\\\">\\n\\n      <\/p>\n<div class=\\\"npk-eyebrow\\\">Procurement<\\\/div>\\n      <\/p>\n<h2 class=\\\"npk-gradient-title\\\">How to choose the right paperboard grade for a folding carton project<\\\/h2>\\n\\n      <\/p>\n<p class=\\\"npk-lead\\\">\\n        The right board grade comes from the product brief, carton structure, print expectations, compliance profile, distribution path, and cost target.\\n      <\\\/p>\\n\\n      <\/p>\n<div class=\\\"npk-grid npk-grid--4\\\" style=\\\"margin-top:34px;\\\">\\n\\n        <\/p>\n<article class=\\\"npk-card\\\">\\n          <\/p>\n<h3>Start with the product<\\\/h3>\\n          <\/p>\n<p>\\n            Weight, shape, moisture exposure, odor sensitivity, fragility, and fill process determine the carton\\u2019s real performance needs.\\n          <\\\/p>\\n        <\\\/article>\\n\\n        <\/p>\n<article class=\\\"npk-card\\\">\\n          <\/p>\n<h3>Define the retail requirement<\\\/h3>\\n          <\/p>\n<p>\\n            Shelf impact, print quality, scuff resistance, premium finishing, and display structure narrow the substrate options quickly.\\n          <\\\/p>\\n        <\\\/article>\\n\\n        <\/p>\n<article class=\\\"npk-card\\\">\\n          <\/p>\n<h3>Review compliance early<\\\/h3>\\n          <\/p>\n<p>\\n            Food, pharmaceutical, and regulated product packaging need material review before artwork and claims are finalized.\\n          <\\\/p>\\n        <\\\/article>\\n\\n        <\/p>\n<article class=\\\"npk-card\\\">\\n          <\/p>\n<h3>Confirm converting behavior<\\\/h3>\\n          <\/p>\n<p>\\n            Score cracking, glue performance, dust, carton squareness, and filling-line behavior can make or break the final specification.\\n          <\\\/p>\\n        <\\\/article>\\n\\n      <\\\/div>\\n\\n      <\/p>\n<div class=\\\"npk-band npk-band--green\\\" style=\\\"margin-top:34px;\\\">\\n        <\/p>\n<h3 style=\\\"margin:0 0 10px;color:var(--npk-blue-dark);font-size:26px;line-height:1.2;font-weight:800;\\\">\\n          Why this fits Netpak\\n        <\\\/h3>\\n        <\/p>\n<p class=\\\"npk-body\\\">\\n          Netpak\\u2019s paperboard grade capabilities cover SBS, SUS, CRB, FBB, URB, and micro-flute. That range allows a brand to compare structure, print quality, strength, food packaging needs, sustainability requirements, and cost in one folding carton specification process.<sup><a href=\\\"#ref-1\\\">1<\\\/a><\\\/sup>\\n        <\\\/p>\\n      <\\\/div>\\n\\n    <\\\/div>\\n  <\\\/section>\\n\\n  <!-- QUOTE PREP -->\\n  <\/p>\n<section class=\\\"npk-section npk-section--soft\\\">\\n    <\/p>\n<div class=\\\"npk-wrap\\\">\\n\\n      <\/p>\n<div class=\\\"npk-eyebrow\\\">Quote Preparation<\\\/div>\\n      <\/p>\n<h2 class=\\\"npk-h2\\\">What to send Netpak for a paperboard grade recommendation<\\\/h2>\\n\\n      <\/p>\n<p class=\\\"npk-lead\\\">\\n        A useful folding carton quote should include enough information to evaluate the board grade, not just the carton dimensions.\\n      <\\\/p>\\n\\n      <\/p>\n<div class=\\\"npk-grid npk-grid--2\\\" style=\\\"margin-top:34px;\\\">\\n\\n        <\/p>\n<div class=\\\"npk-card\\\">\\n          <\/p>\n<h3>Core project inputs<\\\/h3>\\n          <\/p>\n<ul class=\\\"npk-list\\\">\\n            <\/p>\n<li><span class=\\\"npk-num\\\">1<\\\/span><span>Carton dimensions and dieline, if available.<\\\/span><\\\/li>\\n\n<li><span class=\\\"npk-num\\\">2<\\\/span><span>Product type, product weight, and product sensitivity.<\\\/span><\\\/li>\\n\n<li><span class=\\\"npk-num\\\">3<\\\/span><span>Target board grade, if already known.<\\\/span><\\\/li>\\n\n<li><span class=\\\"npk-num\\\">4<\\\/span><span>Estimated order quantity and reorder cadence.<\\\/span><\\\/li>\\n\n<li><span class=\\\"npk-num\\\">5<\\\/span><span>Retail channel, warehouse path, and distribution method.<\\\/span><\\\/li>\\n          <\\\/ul>\\n        <\\\/div>\\n\\n\n<div class=\\\"npk-card\\\">\\n          <\/p>\n<h3>Specification inputs<\\\/h3>\\n          <\/p>\n<ul class=\\\"npk-list\\\">\\n            <\/p>\n<li><span class=\\\"npk-num\\\">6<\\\/span><span>Print method, color expectations, and finishing requirements.<\\\/span><\\\/li>\\n\n<li><span class=\\\"npk-num\\\">7<\\\/span><span>Food-contact, pharma, or regulated product requirements.<\\\/span><\\\/li>\\n\n<li><span class=\\\"npk-num\\\">8<\\\/span><span>Moisture, freezer, grease, or odor considerations.<\\\/span><\\\/li>\\n\n<li><span class=\\\"npk-num\\\">9<\\\/span><span>Window, insert, barrier, or coating requirements.<\\\/span><\\\/li>\\n\n<li><span class=\\\"npk-num\\\">10<\\\/span><span>Recycled content, recyclability, or retailer packaging requirements.<\\\/span><\\\/li>\\n          <\\\/ul>\\n        <\\\/div>\\n\\n      <\\\/div>\\n\\n    <\\\/div>\\n  <\\\/section>\\n\\n  <!-- CTA -->\\n<br \/>\n<section class=\\\"npk-section\\\">\\n    <\/p>\n<div class=\\\"npk-wrap\\\">\\n      <\/p>\n<div class=\\\"npk-cta\\\">\\n        <\/p>\n<h2>Request a paperboard grade review for your folding carton<\\\/h2>\\n        <\/p>\n<p>\\n          Send Netpak your dieline, product details, target market, print requirements, material preferences, and packaging constraints. Netpak can review whether SBS, SUS, CRB, FBB, URB, or micro-flute is the right fit before the carton moves into production.\\n        <\\\/p>\\n\\n        <\/p>\n<div class=\\\"npk-actions\\\">\\n          <a class=\\\"npk-btn npk-btn--primary\\\" href=\\\"\\\/en\\\/request-a-quote\\\/\\\">Submit carton project details<\\\/a>\\n          <a class=\\\"npk-btn npk-btn--light\\\" href=\\\"mailto:sales@netpak.com\\\">Email sales@netpak.com<\\\/a>\\n        <\\\/div>\\n      <\\\/div>\\n    <\\\/div>\\n  <\\\/section>\\n\\n  <!-- RELATED RESOURCES -->\\n  <\/p>\n<section class=\\\"npk-section npk-section--soft\\\">\\n    <\/p>\n<div class=\\\"npk-wrap\\\">\\n\\n      <\/p>\n<div class=\\\"npk-eyebrow\\\">Related Resources<\\\/div>\\n\\n      <\/p>\n<h2 class=\\\"npk-gradient-title\\\">Continue planning your folding carton specification<\\\/h2>\\n\\n      <\/p>\n<p class=\\\"npk-lead\\\">\\n        Use these related guides to refine carton strength, retail execution, food packaging requirements, and material performance before requesting production pricing.\\n      <\\\/p>\\n\\n      <\/p>\n<div class=\\\"npk-grid npk-grid--4 npk-related-grid\\\" style=\\\"margin-top:34px;\\\">\\n\\n        <a class=\\\"npk-card npk-card--link npk-related-card\\\" href=\\\"\\\/en\\\/packaging-resources\\\/industry-articles\\\/high-strength-folding-cartons-paperboard-micro-flute\\\/\\\">\\n          <\/p>\n<div class=\\\"npk-card__image\\\">\\n            <img\\n              src=\\\"\\\/wp-content\\\/uploads\\\/2023\\\/01\\\/img_carton_fbb-1.webp\\\"\\n              alt=\\\"High-strength folding cartons using paperboard and micro-flute structures\\\"\\n              width=\\\"800\\\"\\n              height=\\\"600\\\"\\n              loading=\\\"lazy\\\"\\n              decoding=\\\"async\\\"\\n            >\\n          <\\\/div>\\n\\n          <\/p>\n<div class=\\\"npk-card__body\\\">\\n            <span class=\\\"npk-card__tag\\\">High Strength<\\\/span>\\n\\n            <\/p>\n<h3>High-strength folding cartons<\\\/h3>\\n\\n            <\/p>\n<p>\\n              Review paperboard, solidboard, E-flute, F-flute, and N-flute options for cartons that need more strength, stacking support, or product protection.\\n            <\\\/p>\\n\\n            <span class=\\\"npk-card__link\\\">Open article<\\\/span>\\n          <\\\/div>\\n        <\\\/a>\\n\\n        <a class=\\\"npk-card npk-card--link npk-related-card\\\" href=\\\"\\\/en\\\/packaging-resources\\\/industry-articles\\\/micro-flute-packaging-e-f-n-flute\\\/\\\">\\n          <\/p>\n<div class=\\\"npk-card__image\\\">\\n            <img\\n              src=\\\"\\\/wp-content\\\/uploads\\\/2023\\\/01\\\/img_carton_ondule_flute.webp\\\"\\n              alt=\\\"Micro-flute corrugated cardboard for folding carton packaging\\\"\\n              width=\\\"800\\\"\\n              height=\\\"600\\\"\\n              loading=\\\"lazy\\\"\\n              decoding=\\\"async\\\"\\n            >\\n          <\\\/div>\\n\\n          <\/p>\n<div class=\\\"npk-card__body\\\">\\n            <span class=\\\"npk-card__tag\\\">Micro-Flute<\\\/span>\\n\\n            <\/p>\n<h3>Micro-flute packaging: E, F and N-flute guide<\\\/h3>\\n\\n            <\/p>\n<p>\\n              Compare E-flute, F-flute, and N-flute corrugated board for print quality, folding accuracy, strength, sustainability, and retail presentation.\\n            <\\\/p>\\n\\n            <span class=\\\"npk-card__link\\\">Open article<\\\/span>\\n          <\\\/div>\\n        <\\\/a>\\n\\n        <a class=\\\"npk-card npk-card--link npk-related-card\\\" href=\\\"\\\/en\\\/packaging-resources\\\/industry-articles\\\/retail-ready-folding-carton-packaging\\\/\\\">\\n          <\/p>\n<div class=\\\"npk-card__image\\\">\\n            <img\\n              src=\\\"\\\/wp-content\\\/uploads\\\/2022\\\/11\\\/img_emballage_multiple.webp\\\"\\n              alt=\\\"Retail-ready folding carton packaging for grocery and private label launches\\\"\\n              width=\\\"800\\\"\\n              height=\\\"600\\\"\\n              loading=\\\"lazy\\\"\\n              decoding=\\\"async\\\"\\n            >\\n          <\\\/div>\\n\\n          <\/p>\n<div class=\\\"npk-card__body\\\">\\n            <span class=\\\"npk-card__tag\\\">Retail-Ready<\\\/span>\\n\\n            <\/p>\n<h3>Retail-ready folding carton packaging for grocery launches<\\\/h3>\\n\\n            <\/p>\n<p>\\n              Plan grocery, club store, and private label packaging programs around structure, materials, barcodes, shelf execution, and logistics.\\n            <\\\/p>\\n\\n            <span class=\\\"npk-card__link\\\">Open article<\\\/span>\\n          <\\\/div>\\n        <\\\/a>\\n\\n        <a class=\\\"npk-card npk-card--link npk-related-card\\\" href=\\\"\\\/en\\\/packaging-resources\\\/industry-articles\\\/food-packaging-supplier-checklist\\\/\\\">\\n          <\/p>\n<div class=\\\"npk-card__image\\\">\\n            <img\\n              src=\\\"\\\/wp-content\\\/uploads\\\/2022\\\/11\\\/img_congele.webp\\\"\\n              alt=\\\"Food packaging supplier checklist for custom folding cartons\\\"\\n              width=\\\"800\\\"\\n              height=\\\"600\\\"\\n              loading=\\\"lazy\\\"\\n              decoding=\\\"async\\\"\\n            >\\n          <\\\/div>\\n\\n          <\/p>\n<div class=\\\"npk-card__body\\\">\\n            <span class=\\\"npk-card__tag\\\">Food Packaging<\\\/span>\\n\\n            <\/p>\n<h3>Food packaging supplier checklist<\\\/h3>\\n\\n            <\/p>\n<p>\\n              Evaluate food-contact fit, material controls, BRCGS systems, prepress support, production discipline, and logistics before selecting a folding carton supplier.\\n            <\\\/p>\\n\\n            <span class=\\\"npk-card__link\\\">Open article<\\\/span>\\n          <\\\/div>\\n        <\\\/a>\\n\\n      <\\\/div>\\n\\n    <\\\/div>\\n  <\\\/section>\\n\\n  <!-- SOURCES -->\\n  <\/p>\n<section class=\\\"npk-section npk-section--soft\\\">\\n    <\/p>\n<div class=\\\"npk-wrap\\\">\\n\\n      <\/p>\n<div class=\\\"npk-eyebrow\\\">References<\\\/div>\\n      <\/p>\n<h2 class=\\\"npk-h2\\\">Sources<\\\/h2>\\n\\n      <\/p>\n<ol class=\\\"npk-ref-list\\\">\\n        <\/p>\n<li id=\\\"ref-1\\\">\\n          Netpak, Paperboard Grades for Folding Cartons.\\n          <a href=\\\"https:\\\/\\\/www.netpak.com\\\/en\\\/products\\\/paperboard-grades\\\/\\\" target=\\\"_blank\\\" rel=\\\"noopener\\\">https:\\\/\\\/www.netpak.com\\\/en\\\/products\\\/paperboard-grades\\\/<\\\/a>\\n        <\\\/li>\\n\\n\n<li id=\\\"ref-2\\\">\\n          Paperboard Packaging Council, 4 Types of Paperboard.\\n          <a href=\\\"https:\\\/\\\/paperbox.org\\\/4-types-of-paperboard\\\/\\\" target=\\\"_blank\\\" rel=\\\"noopener\\\">https:\\\/\\\/paperbox.org\\\/4-types-of-paperboard\\\/<\\\/a>\\n        <\\\/li>\\n\\n\n<li id=\\\"ref-3\\\">\\n          JohnsByrne, Grades of Folding Carton Board Explained.\\n          <a href=\\\"https:\\\/\\\/www.johnsbyrne.com\\\/blog\\\/grades-of-folding-carton-board-explained\\\/\\\" target=\\\"_blank\\\" rel=\\\"noopener\\\">https:\\\/\\\/www.johnsbyrne.com\\\/blog\\\/grades-of-folding-carton-board-explained\\\/<\\\/a>\\n        <\\\/li>\\n\\n\n<li id=\\\"ref-4\\\">\\n          PG Paper, Types of Paperboard: SBS vs FBB.\\n          <a href=\\\"https:\\\/\\\/www.pgpaper.com\\\/types-of-paperboard\\\/\\\" target=\\\"_blank\\\" rel=\\\"noopener\\\">https:\\\/\\\/www.pgpaper.com\\\/types-of-paperboard\\\/<\\\/a>\\n        <\\\/li>\\n\\n\n<li id=\\\"ref-5\\\">\\n          eCFR, 21 CFR Part 176, Indirect Food Additives: Paper and Paperboard Components.\\n          <a href=\\\"https:\\\/\\\/www.ecfr.gov\\\/current\\\/title-21\\\/chapter-I\\\/subchapter-B\\\/part-176\\\" target=\\\"_blank\\\" rel=\\\"noopener\\\">https:\\\/\\\/www.ecfr.gov\\\/current\\\/title-21\\\/chapter-I\\\/subchapter-B\\\/part-176<\\\/a>\\n        <\\\/li>\\n\\n\n<li id=\\\"ref-6\\\">\\n          FDA, Guidance for Industry: Use of Recycled Plastics in Food Packaging, Chemistry Considerations.\\n          <a href=\\\"https:\\\/\\\/www.fda.gov\\\/media\\\/150792\\\/download\\\" target=\\\"_blank\\\" rel=\\\"noopener\\\">https:\\\/\\\/www.fda.gov\\\/media\\\/150792\\\/download<\\\/a>\\n        <\\\/li>\\n\\n\n<li id=\\\"ref-7\\\">\\n          CEPI, Recyclability Laboratory Test Method Version 3.\\n          <a href=\\\"https:\\\/\\\/www.cepi.org\\\/cepi-recyclability-test-method-version-3\\\/\\\" target=\\\"_blank\\\" rel=\\\"noopener\\\">https:\\\/\\\/www.cepi.org\\\/cepi-recyclability-test-method-version-3\\\/<\\\/a>\\n        <\\\/li>\\n\\n\n<li id=\\\"ref-8\\\">\\n          Fibre Box Association, What is Corrugated.\\n          <a href=\\\"https:\\\/\\\/www.fibrebox.org\\\/what-is-corrugated\\\/\\\" target=\\\"_blank\\\" rel=\\\"noopener\\\">https:\\\/\\\/www.fibrebox.org\\\/what-is-corrugated\\\/<\\\/a>\\n        <\\\/li>\\n\\n\n<li id=\\\"ref-9\\\">\\n          Sustainable Packaging Coalition, How to Know If Your Paper Packaging Is Recyclable.\\n          <a href=\\\"https:\\\/\\\/sustainablepackaging.org\\\/wp-content\\\/uploads\\\/2023\\\/01\\\/SPC_Paper-Pkg-Report_FINAL.pdf\\\" target=\\\"_blank\\\" rel=\\\"noopener\\\">https:\\\/\\\/sustainablepackaging.org\\\/wp-content\\\/uploads\\\/2023\\\/01\\\/SPC_Paper-Pkg-Report_FINAL.pdf<\\\/a>\\n        <\\\/li>\\n      <\\\/ol>\\n\\n    <\\\/div>\\n  <\\\/section>\\n\\n<\\\/article>\"}}]}]}]}],\"version\":\"4.5.32\"} --><br \/>\n","protected":false},"excerpt":{"rendered":"<p>Compare SBS, SUS, CRB, FBB, URB, and micro-flute for folding carton packaging, including print, structure, compliance, and sustainability.<\/p>\n","protected":false},"author":13,"featured_media":7441,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"categories":[143,144,150,151],"tags":[],"class_list":["post-2722","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-education","category-folding-carton","category-packaging","category-sustainability"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Paperboard Material in Folding Carton Packaging | Netpak<\/title>\n<meta name=\"description\" content=\"Compare SBS, SUS, CRB, FBB, URB, &amp; micro-flute for folding carton packaging. Print quality, structure, compliance, &amp; material selection.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.netpak.com\/en\/packaging-resources\/industry-articles\/paperboard-material-in-folding-carton\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Paperboard Material in Folding Carton Packaging | Netpak\" \/>\n<meta property=\"og:description\" content=\"Compare SBS, SUS, CRB, FBB, URB, &amp; micro-flute for folding carton packaging. 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