Extensible Kraft Papers (North America)

We offer a variety of extensible and semi-extensible substrate options to deliver operational and functional performance for shipping sacks and other industrial applications.

An alternative to flat multiwall and used in the production of 2- and 3-ply shipping sacks and 2-ply pasted valve applications, our extensible solutions are ideal for end-users and converters seeking to drive increased efficiencies in sack construction. Our many grade options provide an opportunity to tailor-fit packaging solutions that match performance and efficiency requirements. Explore the full Smurfit Westrock kraft paper rolls portfolio for North America, including bag and sack grades and specialty options.

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ReliaKraft® Performance Kraft

Our ReliaKraft Performance Kraft is engineered to meet demanding industrial standards, offering strength, consistency and efficiency. These high-performance paper grades are designed to deliver reliable results in challenging manufacturing environments.

Clean and consistent fiber: Our quality control standards and processes ensure product consistency, and all our North American kraft paper mills are ISO 9001:2015 certified.
Superior strength: These durable papers are designed to meet the demands of converting operations and end use applications.
Range of paper grades: Our ReliaKraft® performance kraft paper comes in a range of basis weights and performance attributes.
Applications: Insulation facing, cable insulation and cable wrap.

FibreSeal™

FibreSeal™ is an unbleached extensible kraft paper with an aqueous-based heat-sealable coating for use in e-commerce mailers. It has remarkable flexibility and strength and offers a recyclable alternative to traditional plastic films. Our extensible paper stretches without tearing, and resists puncture, making it particularly well-suited for use in e-commerce packaging and through packaging automation systems. If you are looking for a recyclable high-performance paper that aligns with your plastic reduction initiatives, turn to FibreSeal.

TEA-Kraft®

Our standard semi-extensible sack kraft grade is suitable for 2- and 3-ply pasted valve and open mouth shipping sacks providing enhanced burst and puncture resistance in both the machine and cross directions.

Tear resistance: TEA-Kraft provides enhanced burst and puncture resistance, in both machine and cross directions.
Custom design: We can tailor-fit a TEA-Kraft solution to deliver fit-for-use construction that meets critical end-use requirements.
Reduced packaging weight: TEA-Kraft utilizes a lower total packaging weight than comparable alternatives.
Applications: packaging for powdered food products, fresh agricultural goods, pet food, and resins.

TEA-Kraft® Porous

TEA-Kraft® Porous has all the benefits of TEA-Kraft® with an open porous sheet.

Porosity: With an open porous sheet TEA-Kraft® Porous allows for reduction in sack perforations and increased deaeration.
Tear resistance: TEA-Kraft Porous provides enhanced burst and puncture resistance, in both machine and cross directions.
Reduced Packaging Weight: TEA-Kraft uses less total packaging weight than comparable alternatives, improving efficiency without sacrificing performance.
Applications: Ideal for cement, powdered food products, agricultural goods, pet food and resins.

TEA-Kraft® Rigid

Ideal for open mouth style shipping sacks, TEA-Kraft Rigid provides a tight, non-porous sheet with the required stretch in the cross direction for burst and puncture resistance while increasing rigidity in the machine direction that provides stiffness during filling and sealing.

Custom-Engineered Solutions: TEA-Kraft can be precisely engineered to meet specific end-use requirements, ensuring optimal performance for your application.
Lightweight Efficiency: With a lower overall packaging weight than comparable materials, TEA-Kraft helps reduce material usage without compromising durability.
Applications: Well-suited for packaging powdered foods and dairy products.

TEA-Kraft® Rigid Wet Strength

TEA-Kraft® Rigid Wet Strength has all the benefits of TEA-Kraft® Rigid with the addition of wet strength resins.

Wet Strength: Wet strength resin additive makes TEA-Kraft Wet Strength ideal for open-mouth sacks that must perform in wet and humid environments.
Custom Design: We tailor TEA-Kraft solutions to deliver fit-for-use construction that meets critical end-use requirements.
Reduced Packaging Weight: TEA-Kraft utilizes a lower total packaging weight than comparable alternatives.
Applications: Ideal for continuous raisin tray, cold storage and food delivery bag applications.

FibreShield® and FibreShield® Porous

FibreShield is ideal for use in 2-ply pasted valve perforated shipping sack applications that require maximum burst and puncture resistance, including the packaging of cement, building materials, minerals and chemicals. FibreShield® Porous builds on the properties of FibreShield® with an extremely open and porous sheet, eliminating the need for shipping sack perforations, while delivering increased strength and filling speeds ideal for today's high-speed filling lines.

Purchasing and storage savings: The innovative 2-ply sack construction of FibreShield means customers purchase less paper offering storage and labor cost savings.
Reduced basis weights: The 2-ply sack construction leads to a lower total basis weight compared to conventional 3- or 4-ply sacks.
Excellent runnability: Production efficiency is improved through reduced changeover time due to fewer paper rolls to change.
Reliability: FibreShield is extremely resistant to breakages during handling and shipping as well as on the production line.
Efficient lead times: As a leader in high-performance kraft paper, we offer low domestic lead times as well as a strong international presence.
Applications: Cement, building materials, minerals and chemicals, and other powdered and granular materials.