Coated Natural Kraft® (CNK®)

Our durable Coated Natural Kraft® (CNK®) paperboard delivers vibrant graphics and reliable performance, even in wet, cold or greasy environments.

Our portfolio of Coated Natural Kraft® (CNK®) is engineered for strength and designed for impact. Whether your packaging must withstand a demanding supply chain or stand out in a crowded aisle, we have the CNK® paperboard to meet your needs. Reliable and durable, our CNK® paperboard has a proprietary clay coating that delivers crisp, vibrant graphics to catch consumer attention.

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CustomKote® CNK Paperboard

CustomKote® CNK is a versatile, high-strength paperboard designed for reliable performance in dry, refrigerated, and frozen conditions, combining durability with a natural kraft appearance and excellent printability.

Features

CustomKote® CNK provides excellent strength for dry, refrigerated, and frozen environments and can be converted with the kraft side out for a natural look. It has a proprietary clay coating with a smooth, opaque surface and comes in nine calipers. The paperboard is recyclable and made with up to 15% recycled fiber.

Benefits

This material maintains integrity throughout the supply chain for optimal product protection. With the kraft side out, it offers a natural appearance and crisp, vibrant graphics. Its versatility suits a wide range of food, beauty, home, and sporting goods applications.

Applications

Common uses include bakery, beauty and personal care, beverage packaging, filter frames, food packaging, foodservice, home and garden, and sporting goods.

CustomKote® Poly CNK

CustomKote® Poly CNK paperboard is built for strength in dry, refrigerated, and frozen environments. Its LDPE barrier resists moisture, oil, and grease, while its proprietary clay-coated surface delivers vibrant, high-quality graphics for durable, attractive packaging.

Features

This paperboard includes a low-density polyethylene (LDPE) barrier coating and a blend of strong softwood and top-layer hardwood fibers. It’s available in one-sided (P1S) or two-sided (P2S) formats and features a proprietary clay coating for a smooth, opaque print surface. Offered in nine calipers, it's made with up to 15% recycled fiber.

Benefits

Designed to resist moisture, oil, and grease, this material delivers exceptional strength in dry, refrigerated, and frozen environments. It protects products throughout the supply chain and enables crisp, vibrant graphics for appealing packaging.

Applications

Its performance and versatility make it ideal for food packaging, particularly for bakery and frozen food applications.

CarrierKote® Beverage Packaging CUK Paperboard

Engineered for strength, our CarrierKote® CUK paperboard maintains integrity in wet and cold environments. With crisp, vibrant graphics thanks to its proprietary clay coating and outstanding converting performance in the areas of die-cutting, folding and gluing, CarrierKote is the solid unbleached sulfate (SUS) industry standard for beverage carton packaging.

Features

CUK paperboard features a proprietary clay coating that provides a smooth, opaque surface ideal for printing and embellishment. It offers outstanding converting performance in die-cutting, folding, and gluing, and is available in eleven calipers and thicknesses. Optional design elements include handles, windows, and apertures. The board is produced with up to 15% recycled fiber.

Benefits

This paperboard maintains strength and integrity in wet and cold environments and offers excellent tear resistance throughout the supply chain. It delivers exceptional printability with crisp, vibrant graphics, consistent composition and quality, and versatility for a wide range of beverage carton packaging designs.

Applications

Ideal for beverage packaging and filter frames.

Additional Product Information

Sustainability:

Made with up to 15% recycled fiber.
All Smurfit Westrock North American paperboard mills are certified to the SFI®, PEFC, FSC™ Chain of Custody Standards. Contact your Smurfit Westrock sales representative for certified fiber availability for this product.
Certificate Codes: SFI Certified Sourcing: NSF-SFI-CS-6S751, SFI CoC: NSF-SFICOC-6S751, PEFC: NSF-PEFCCOC-6S751, FSC Company Code: FSC-C104002

Quality:

Produced at an ISO 9001 certified facility

Environmental and Product Safety:

Notices under US California Proposition 65 and the EU REACH regulation are not required.
Meets heavy metal limits of the US Model Toxics in Packaging rules and Article 11 of EU Directive 94/62/EC.

Food Contact:

Meets multiple national requirements for food contact packaging, e.g., US, Canada, Germany and the EU. Contact your sales representative for information on specific markets and end uses.
ISEGA Certificate available

This information is subject to change without notice.

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