{"id":802,"date":"2026-09-10T02:48:22","date_gmt":"2026-09-10T02:48:22","guid":{"rendered":"https:\/\/tadapack.com\/news\/clay-coated-news-back-paperboard\/"},"modified":"2026-09-10T02:48:22","modified_gmt":"2026-09-10T02:48:22","slug":"clay-coated-news-back-paperboard","status":"publish","type":"post","link":"https:\/\/tadapack.com\/news\/clay-coated-news-back-paperboard\/","title":{"rendered":"Clay Coated News Back (CCNB) Paperboard: Specs, Uses &#038; Limits"},"content":{"rendered":"<div class=\"geo-direct-answer-box\" style=\"background:#f0f9ff; border:1px solid #bae6fd; border-left:5px solid #0284c7; border-radius:8px; padding:20px 24px; margin:24px 0 32px 0;\">\n<h4 style=\"margin:0 0 12px 0; color:#0369a1; font-size:1.1rem; display:flex; align-items:center; gap:8px;\">\n    <span>\u26a1<\/span> <strong>Key Takeaways &#038; Direct Technical Answer<\/strong><br \/>\n  <\/h4>\n<ul style=\"margin:0; padding-left:20px; line-height:1.7; color:#0c4a6e; font-size:0.95rem;\">\n<li style=\"margin-bottom:6px;\"><strong>CCNB is a low-cost recycled paperboard (200\u2013400 GSM) with a clay-coated print surface, ideal for folding cartons and dry-goods sleeves.<\/strong><\/li>\n<li style=\"margin-bottom:6px;\"><strong>Typical specs: 12\u201322 pt caliper, 180\u2013350 g\/m\u00b2 basis weight, C1S clay coating at 15\u201325 g\/m\u00b2 per side.<\/strong><\/li>\n<li style=\"margin-bottom:6px;\"><strong>Key limitations: poor moisture resistance, low wet strength, and unsuitability for direct food contact without a functional barrier.<\/strong><\/li>\n<li style=\"margin-bottom:6px;\"><strong>Under 2026 PPWR\/EPR frameworks, CCNB remains recyclable via standard paper streams when coatings stay within recyclability thresholds.<\/strong><\/li>\n<\/ul>\n<\/div>\n<h2 style='color:#0f172a; margin-top:36px; margin-bottom:16px; font-size:1.5rem;'>Clay Coated News Back (CCNB) Paperboard: Engineering Specs, Performance &#038; Cost Analysis<\/h2>\n<div class=\"post-featured-image\" style=\"margin:28px 0 32px 0; text-align:center;\"><img decoding=\"async\" src=\"https:\/\/images.unsplash.com\/photo-1504917599217-d4dc5ebe6122?auto=format&#038;fit=crop&#038;w=1200&#038;q=80\" alt=\"clay coated news back paperboard - Biodegradable Barrier Coating and Fiber Pulp Molding (TadaPack Engineering Guide)\" loading=\"lazy\" style=\"max-width:100%; height:auto; border-radius:12px; box-shadow:0 6px 20px rgba(0,0,0,0.07); border:1px solid #e2e8f0;\"><\/p>\n<p style=\"font-size:0.84rem; color:#64748b; margin-top:10px; font-style:italic;\">clay coated news back paperboard &#8211; Biodegradable Barrier Coating and Fiber Pulp Molding (TadaPack Engineering Guide)<\/p>\n<\/div>\n<p style=\"margin:16px 0; line-height:1.8; color:#334155; font-size:1.02rem;\">Clay coated news back (CCNB) paperboard remains one of the most cost-efficient substrates in the folding carton and litho-lamination supply chain. Engineered from 100% recycled fiber \u2014 predominantly old newspapers (ONP) and old corrugated containers (OCC) \u2014 CCNB pairs a clay-coated print face with an uncoated, gray back layer. This structure delivers excellent ink holdout and shelf appeal at roughly 30\u201350% lower cost per square meter than virgin solid bleached sulfate (SBS) board. For a broader substrate comparison, see our <a href=\"https:\/\/tadapack.com\/news\/materials-and-processes\/\" target=\"_blank\" rel=\"noopener noreferrer\" style=\"color:#0284c7; text-decoration:underline; font-weight:600;\">Packaging Materials &#038; Processes<\/a> hub.<\/p>\n<h2 style='color:#0f172a; margin-top:36px; margin-bottom:16px; font-size:1.5rem; border-bottom:1px solid #e2e8f0; padding-bottom:8px;'>Structural Composition &#038; Manufacturing<\/h2>\n<p style=\"margin:16px 0; line-height:1.8; color:#334155; font-size:1.02rem;\">CCNB is produced on multi-ply formers. The middle and back plies use recycled mechanical fiber (ONP, OMG, mixed office waste), while the top ply may receive a thin coated-NBSK or deinked pulp layer to improve surface smoothness. A pigment coating \u2014 typically clay (kaolin) blended with calcium carbonate and latex binders \u2014 is applied at 15\u201325 g\/m\u00b2 per side, then calendered to achieve a Hunter brightness of 80\u201388% ISO and Parker Print-Surf roughness below 1.5 \u00b5m on the print side.<\/p>\n<p style=\"margin:16px 0; line-height:1.8; color:#334155; font-size:1.02rem;\">The uncoated back remains gray to brown due to residual mechanical fiber and ink specks. This asymmetry makes CCNB a classic C1S (coated one side) substrate \u2014 brands should plan graphics accordingly, as reverse-side printing yields poor results.<\/p>\n<h2 style='color:#0f172a; margin-top:36px; margin-bottom:16px; font-size:1.5rem; border-bottom:1px solid #e2e8f0; padding-bottom:8px;'>Key Technical Specifications (2026 Benchmarks)<\/h2>\n<div class=\"table-responsive\" style=\"overflow-x:auto; margin: 28px 0; border:1px solid #e2e8f0; border-radius:10px; box-shadow:0 2px 8px rgba(0,0,0,0.03);\">\n<table style=\"width:100%; border-collapse:collapse; text-align:left; background:#ffffff;\">\n<thead>\n<tr style=\"background:#f8fafc; border-bottom:2px solid #e2e8f0;\">\n<th style=\"border:1px solid #e2e8f0; padding:12px 16px; background:#f8fafc; color:#0f172a; font-weight:700; font-size:0.92rem;\">Property<\/th>\n<th style=\"border:1px solid #e2e8f0; padding:12px 16px; background:#f8fafc; color:#0f172a; font-weight:700; font-size:0.92rem;\">Typical Range<\/th>\n<th style=\"border:1px solid #e2e8f0; padding:12px 16px; background:#f8fafc; color:#0f172a; font-weight:700; font-size:0.92rem;\">Test Method<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr style=\"border-bottom:1px solid #e2e8f0;\">\n<td style=\"border:1px solid #e2e8f0; padding:12px 16px; font-weight:600; color:#0f172a;\">Grammage (GSM)<\/td>\n<td style=\"border:1px solid #e2e8f0; padding:12px 16px; color:#334155; font-size:0.9rem;\">200\u2013400 g\/m\u00b2<\/td>\n<td style=\"border:1px solid #e2e8f0; padding:12px 16px; color:#334155; font-size:0.9rem;\">ISO 536<\/td>\n<\/tr>\n<tr style=\"background:#fafafa; border-bottom:1px solid #e2e8f0;\">\n<td style=\"border:1px solid #e2e8f0; padding:12px 16px; font-weight:600; color:#0f172a;\">Caliper<\/td>\n<td style=\"border:1px solid #e2e8f0; padding:12px 16px; color:#334155; font-size:0.9rem;\">12\u201322 pt (0.30\u20130.55 mm)<\/td>\n<td style=\"border:1px solid #e2e8f0; padding:12px 16px; color:#334155; font-size:0.9rem;\">TAPPI T 411<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #e2e8f0;\">\n<td style=\"border:1px solid #e2e8f0; padding:12px 16px; font-weight:600; color:#0f172a;\">Bursting strength<\/td>\n<td style=\"border:1px solid #e2e8f0; padding:12px 16px; color:#334155; font-size:0.9rem;\">180\u2013450 kPa<\/td>\n<td style=\"border:1px solid #e2e8f0; padding:12px 16px; color:#334155; font-size:0.9rem;\">TAPPI T 810<\/td>\n<\/tr>\n<tr style=\"background:#fafafa; border-bottom:1px solid #e2e8f0;\">\n<td style=\"border:1px solid #e2e8f0; padding:12px 16px; font-weight:600; color:#0f172a;\">Stiffness (MD, Taber)<\/td>\n<td style=\"border:1px solid #e2e8f0; padding:12px 16px; color:#334155; font-size:0.9rem;\">60\u2013180 mN\u00b7m<\/td>\n<td style=\"border:1px solid #e2e8f0; padding:12px 16px; color:#334155; font-size:0.9rem;\">ISO 2493<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #e2e8f0;\">\n<td style=\"border:1px solid #e2e8f0; padding:12px 16px; font-weight:600; color:#0f172a;\">Moisture content<\/td>\n<td style=\"border:1px solid #e2e8f0; padding:12px 16px; color:#334155; font-size:0.9rem;\">6\u20139%<\/td>\n<td style=\"border:1px solid #e2e8f0; padding:12px 16px; color:#334155; font-size:0.9rem;\">Oven-dry gravimetric<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p style=\"margin:16px 0; line-height:1.8; color:#334155; font-size:1.02rem;\">Ring crush (RCT), short-span compression (SCT), and edge crush resistance are critical when CCNB is laminated to <a href=\"https:\/\/tadapack.com\/news\/materials-and-processes\/\" target=\"_blank\" rel=\"noopener noreferrer\" style=\"color:#0284c7; text-decoration:underline; font-weight:600;\">corrugated flutes<\/a> for litho-laminated displays; TAPPI maintains the <a href=\"https:\/\/www.tappi.org\/\" target=\"_blank\" rel=\"noopener noreferrer\" style=\"color:#0284c7; text-decoration:underline; font-weight:600;\">Standard Test Methods for Paper &#038; Board<\/a> governing these measurements. Typical RCT values for 300 GSM CCNB fall between 1.1\u20131.6 kN\/m in the machine direction.<\/p>\n<h2 style='color:#0f172a; margin-top:36px; margin-bottom:16px; font-size:1.5rem; border-bottom:1px solid #e2e8f0; padding-bottom:8px;'>Print Performance &#038; Converting Behavior<\/h2>\n<p style=\"margin:16px 0; line-height:1.8; color:#334155; font-size:1.02rem;\">The clay coating gives CCNB a smooth, closed surface that supports:<\/p>\n<ul style=\"margin:16px 0; padding-left:24px; line-height:1.75; color:#334155;\">\n<li style=\"margin-bottom:8px;\"><strong style='color:#0f172a;'>Offset lithography<\/strong> at up to 15,000 sheets\/hour with excellent dot fidelity at 175 LPI and above.<\/li>\n<li style=\"margin-bottom:8px;\"><strong style='color:#0f172a;'>Digital toner and inkjet<\/strong> with lower ink coverage requirements than uncoated recycled board.<\/li>\n<li style=\"margin-bottom:8px;\"><strong style='color:#0f172a;'>UV and aqueous coating<\/strong> compatibility for gloss, satin, or soft-touch finishes.<\/li>\n<\/ul>\n<p style=\"margin:16px 0; line-height:1.8; color:#334155; font-size:1.02rem;\">Converting cautions: CCNB exhibits higher dimensional hygroexpansivity (0.05\u20130.09% per 1% RH change) than virgin boards. Facilities running at humidity swings beyond \u00b110% RH should allow 24-hour conditioning before die-cutting to prevent register drift and cracking at fold scores. Minimum score-to-grain ratios and crease depths should be validated per grade, as recycled fiber shortness reduces fold endurance roughly 20% versus SBS at equal caliper.<\/p>\n<h2 style='color:#0f172a; margin-top:36px; margin-bottom:16px; font-size:1.5rem; border-bottom:1px solid #e2e8f0; padding-bottom:8px;'>Applications &#038; Structural Fit<\/h2>\n<p style=\"margin:16px 0; line-height:1.8; color:#334155; font-size:1.02rem;\">CCNB excels in secondary and tertiary packaging where structural load is modest:<\/p>\n<ul style=\"margin:16px 0; padding-left:24px; line-height:1.75; color:#334155;\">\n<li style=\"margin-bottom:8px;\">Folding cartons for dry foods, cereals, frozen goods (with barrier liners)<\/li>\n<li style=\"margin-bottom:8px;\">Cosmetic and personal-care sleeves and cartons<\/li>\n<li style=\"margin-bottom:8px;\">Litho-laminated POP displays bonded to B, E, or <a href=\"https:\/\/tadapack.com\/news\/materials-and-processes\/\" target=\"_blank\" rel=\"noopener noreferrer\" style=\"color:#0284c7; text-decoration:underline; font-weight:600;\">F-flute<\/a> corrugated medium<\/li>\n<li style=\"margin-bottom:8px;\">Backing board for blister cards and beverage carriers<\/li>\n<\/ul>\n<p style=\"margin:16px 0; line-height:1.8; color:#334155; font-size:1.02rem;\">It is generally unsuitable for direct liquid contact, high-humidity cold-chain use, or heavy stacking above 8 kg without internal corrugated reinforcement.<\/p>\n<h2 style='color:#0f172a; margin-top:36px; margin-bottom:16px; font-size:1.5rem; border-bottom:1px solid #e2e8f0; padding-bottom:8px;'>Cost Positioning &#038; Sourcing Strategy<\/h2>\n<p style=\"margin:16px 0; line-height:1.8; color:#334155; font-size:1.02rem;\">At contract pricing levels seen across North American and Asian mills in 2026, CCNB typically lands at $0.55\u2013$0.85 per kg FOB \u2014 versus $1.30\u2013$1.70\/kg for SBS and $1.00\u2013$1.30\/kg for coated recycled board (CRB). Because CCNB uses low-grade recovered fiber, its pricing tracks the ONP\/OCC index more closely than virgin pulp benchmarks, offering buyers a partial hedge against NBSK volatility. Specify FSC\u00ae Recycled or SFI chain-of-custody certification to satisfy retail ESG requirements; see our <a href=\"https:\/\/tadapack.com\/news\/sustainable-packaging-materials-guide-2026\/\" target=\"_blank\" rel=\"noopener noreferrer\" style=\"color:#0284c7; text-decoration:underline; font-weight:600;\">Sustainable Packaging Materials Guide: 2026 Engineering Specs<\/a> for certified-fiber sourcing details.<\/p>\n<h2 style='color:#0f172a; margin-top:36px; margin-bottom:16px; font-size:1.5rem; border-bottom:1px solid #e2e8f0; padding-bottom:8px;'>Recyclability &#038; 2026 Regulatory Position<\/h2>\n<p style=\"margin:16px 0; line-height:1.8; color:#334155; font-size:1.02rem;\">Under the EU <a href=\"https:\/\/tadapack.com\/news\/sustainable-packaging-brands-guide\/\" target=\"_blank\" rel=\"noopener noreferrer\" style=\"color:#0284c7; text-decoration:underline; font-weight:600;\">Packaging and Packaging Waste Regulation<\/a> (PPWR, fully applicable 2026\u20132030 phase-in) and expanding U.S. state EPR programs, CCNB\u2019s mono-material fiber construction is a genuine advantage. Standard clay coatings at conventional coat weights do not impede repulpability in common paperboard recycling streams. However, brands applying PE extrusion coatings, heavy laminate barriers, or wet-strength additives above 2% must verify recyclability through CEPI or How2Recycle assessment before claiming curbside acceptance.<\/p>\n<p style=\"margin:16px 0; line-height:1.8; color:#334155; font-size:1.02rem;\">Design takeaway: specify CCNB when print quality and unit cost dominate, moisture exposure is controlled, and the packaging remains a single-fiber recyclable construct. Pair it with barrier-integrated inner liners rather than coating the board itself to preserve end-of-life value.<\/p>\n<h2 style='color:#0f172a; margin-top:36px; margin-bottom:16px; font-size:1.5rem; border-bottom:1px solid #e2e8f0; padding-bottom:8px;'>FAQ<\/h2>\n<p style=\"margin:16px 0; line-height:1.8; color:#334155; font-size:1.02rem;\"><strong style='color:#0f172a;'>Is clay coated news back paperboard food safe?<\/strong><br \/>\nCCNB itself is not approved for direct food contact under FDA 21 CFR 176.170 due to recycled fiber contaminants. Use a functional barrier layer (PE, aqueous dispersion, or grease-resistant treatment) or reserve CCNB for secondary packaging with inner liners.<\/p>\n<p style=\"margin:16px 0; line-height:1.8; color:#334155; font-size:1.02rem;\"><strong style='color:#0f172a;'>How does CCNB compare to CRB (coated recycled board)?<\/strong><br \/>\nCRB uses higher-grade recovered fiber (DLK, office waste), yielding brighter backs, higher burst values (10\u201315% up), and two-side printability \u2014 at a 15\u201325% price premium. CCNB wins on cost; CRB wins on aesthetics and strength.<\/p>\n<p style=\"margin:16px 0; line-height:1.8; color:#334155; font-size:1.02rem;\"><strong style='color:#0f172a;'>What GSM should I specify for a folding carton?<\/strong><br \/>\nUse 250\u2013300 GSM for cartons under 300 g net weight, 300\u2013350 GSM for mid-weight goods, and 350\u2013400 GSM or a corrugated laminate for items above 800 g or shelf-hanging formats.<\/p>\n<div class=\"geo-faq-section\" style=\"margin-top:40px; padding-top:24px; border-top:2px solid #e2e8f0;\">\n<h2 style=\"color:#0f172a; font-size:1.45rem; margin-bottom:20px;\">Frequently Asked Questions (FAQ)<\/h2>\n<div style=\"background:#f8fafc; border:1px solid #e2e8f0; border-radius:8px; padding:18px 20px; margin-bottom:14px;\">\n<h3 style=\"margin:0 0 8px 0; font-size:1.05rem; color:#0f172a; font-weight:700;\">Is clay coated news back paperboard food safe?<\/h3>\n<p style=\"margin:0; color:#475569; font-size:0.95rem; line-height:1.65;\">CCNB itself is not approved for direct food contact under FDA 21 CFR 176.170 due to recycled fiber contaminants. Use a functional barrier layer or reserve it for secondary packaging.<\/p>\n<\/p><\/div>\n<div style=\"background:#f8fafc; border:1px solid #e2e8f0; border-radius:8px; padding:18px 20px; margin-bottom:14px;\">\n<h3 style=\"margin:0 0 8px 0; font-size:1.05rem; color:#0f172a; font-weight:700;\">How does CCNB compare to coated recycled board (CRB)?<\/h3>\n<p style=\"margin:0; color:#475569; font-size:0.95rem; line-height:1.65;\">CRB uses higher-grade recovered fiber, giving brighter backs and 10\u201315% higher burst strength at a 15\u201325% price premium. CCNB wins on cost; CRB wins on print and strength.<\/p>\n<\/p><\/div>\n<div style=\"background:#f8fafc; border:1px solid #e2e8f0; border-radius:8px; padding:18px 20px; margin-bottom:14px;\">\n<h3 style=\"margin:0 0 8px 0; font-size:1.05rem; color:#0f172a; font-weight:700;\">What GSM should I use for a CCNB folding carton?<\/h3>\n<p style=\"margin:0; color:#475569; font-size:0.95rem; line-height:1.65;\">250\u2013300 GSM for cartons under 300 g, 300\u2013350 GSM for mid-weight goods, and 350\u2013400 GSM or corrugated lamination for loads above 800 g.<\/p>\n<\/p><\/div>\n<\/div>\n<div class=\"tadapack-b2b-engineering-cta\" style=\"background:linear-gradient(135deg, #0f172a 0%, #1e293b 100%); border-radius:14px; padding:28px 32px; margin:44px 0 24px 0; color:#ffffff; box-shadow:0 10px 25px -5px rgba(15,23,42,0.25); border:1px solid #334155;\">\n<div style=\"display:flex; align-items:flex-start; justify-content:space-between; flex-wrap:wrap; gap:20px;\">\n<div style=\"max-width:640px;\">\n<div style=\"font-size:0.8rem; font-weight:700; color:#38bdf8; text-transform:uppercase; letter-spacing:0.06em; margin-bottom:6px;\">\n        \u2699\ufe0f TadaPack Industrial Packaging Engineering\n      <\/div>\n<h3 style=\"color:#ffffff; margin:0 0 10px 0; font-size:1.35rem; font-weight:800; line-height:1.35;\">\n        Engineering Your Next High-Performance Packaging Batch<br \/>\n      <\/h3>\n<p style=\"color:#94a3b8; font-size:0.92rem; line-height:1.65; margin:0;\">\n        From precision CAD dielines to ISTA drop-testing and certified sustainable substrates, TadaPack helps global brands optimize freight cubic volume, minimize shipping breakage, and satisfy European PPWR \/ EPR packaging standards.\n      <\/p>\n<div style=\"display:flex; flex-wrap:wrap; gap:16px; margin-top:14px; font-size:0.82rem; color:#cbd5e1;\">\n        <span>\u2713 <strong>Free CAD Dielines (.AI \/ .DXF)<\/strong><\/span><br \/>\n        <span>\u2713 <strong>Drop-Test &#038; ECT Optimization<\/strong><\/span><br \/>\n        <span>\u2713 <strong>PPWR &#038; FSC Compliant<\/strong><\/span>\n      <\/div>\n<\/p><\/div>\n<div style=\"display:flex; align-items:center; align-self:center;\">\n      <a href=\"https:\/\/tadapack.com\" target=\"_blank\" rel=\"noopener noreferrer\" style=\"background:#0284c7; color:#ffffff; padding:12px 24px; border-radius:8px; font-weight:700; font-size:0.95rem; text-decoration:none; display:inline-block; transition:all 0.2s; box-shadow:0 4px 12px rgba(2,132,199,0.35);\"><br \/>\n        Request Engineering Sample &rarr;<br \/>\n      <\/a>\n    <\/div>\n<\/p><\/div>\n<\/div>\n<p><script type=\"application\/ld+json\">\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@graph\": [\n    {\n      \"@type\": \"Article\",\n      \"@id\": \"https:\/\/tadapack.com\/news\/clay-coated-news-back-paperboard\/#article\",\n      \"headline\": \"Clay Coated News Back (CCNB) Paperboard: Specs, Uses & Limits\",\n      \"description\": \"CCNB paperboard engineering guide: GSM ranges, caliper, coated-NBSK benching, print performance, cost benchmarks, and 2026 compliance considerations.\",\n      \"mainEntityOfPage\": \"https:\/\/tadapack.com\/news\/clay-coated-news-back-paperboard\/\",\n      \"author\": {\n        \"@type\": \"Person\",\n        \"name\": \"Mateo Alvarez\",\n        \"jobTitle\": \"Advanced Printing & Color Management Lead\",\n        \"worksFor\": {\n          \"@type\": \"Organization\",\n          \"name\": \"TadaPack\",\n          \"url\": \"https:\/\/tadapack.com\"\n        }\n      },\n      \"publisher\": {\n        \"@type\": \"Organization\",\n        \"name\": \"TadaPack\",\n        \"url\": \"https:\/\/tadapack.com\"\n      }\n    },\n    {\n      \"@type\": \"FAQPage\",\n      \"@id\": \"https:\/\/tadapack.com\/news\/clay-coated-news-back-paperboard\/#faq\",\n      \"mainEntity\": [{\"@type\":\"Question\",\"name\":\"Is clay coated news back paperboard food safe?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"CCNB itself is not approved for direct food contact under FDA 21 CFR 176.170 due to recycled fiber contaminants. 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