High Performance Multiwall

Protect your product while using less packaging.

From construction materials to powdered food products, our family of high performance sack kraft paper helps manufacturers protect their brands from the job site to the retail shelf. Used in 2- and 3- ply multiwall shipping sacks, FibreShield® and TEA-Kraft® are used in value-engineered packaging solutions that deliver high-strength protection with increased converting, supply chain, and packaging efficiencies.

Supported by a world class service team, our customers rely on KapStone’s technical support as we partner to innovate through sack design, grade conversion, and down-weighting.

Product Line

  • FibreShield®
  • TEA-Kraft®
  • TEA-Kraft Performance Video
FibreShield Logo

Protection is Our Strength

The highest strength, the lowest weight. For the most demanding of packaging applications, the FibreShield family of fully extensible multiwall paper delivers an optimized shipping sack solution ideal for 2-ply pasted valve applications.

Packaging optimization starts with the paper. Our access to a high quality, northern fiber blend and a commitment to manufacturing excellence results in enhanced tensile energy absorption (TEA) in both the machine and cross directions. No matter which way you drop it, sacks constructed with FibreShield deliver the most advanced burst and puncture resistance while using up to 50% less packaging material – a win for all stakeholders throughout the supply chain.

  • Purchasing and storage wins
  • Reduced packaging weight – increased converting speeds
  • End-use packing efficiency – clean, fast filling
  • Extreme reliability – low downstream breakage rates
Learn more at: www.fibreshield.com

Product Line

  • FibreShield®
  • FibreShield Porous®

FibreShield – 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 properties of standard FibreShield while providing 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.

TEA-Kraft Logo

An efficient alternative to flat multiwall paper, the TEA-Kraft® family of semi-extensible sack kraft paper is used in 2- and 3- ply shipping sacks to protect powdered food products, ingredients, fresh agriculture, pet food and resins. All while utilizing a lower total packaging weight and delivering increased burst and puncture resistance.

TEA-Kraft is ideal for end-users and converters alike as they look to drive increased efficiencies. The multiple options in the grade family provide an opportunity to tailor fit packaging solutions that match performance advantages with expected efficiency gains. We partner each step of the way to develop fit-for-use construction options without neglecting critical end-use requirements.

Product Line

  • TEA-Kraft®
  • TEA-Kraft Porous®
  • Rigid TK®
  • Rigid TK Wet Strength®
TEA-Kraft – our standard grade of semi-extensible sack kraft 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.
TEA-Kraft Porous® – all the benefits of TEA-Kraft with an open, porous sheet that allows for a reduction in sack perforations and increased deaeration.

Rigid TK – 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.

TEA-Kraft Rigid® Wet Strength – all the benefits of TEA-Kraft Rigid with the addition of wet strength resins ideal for open mouth sacks that need to perform in wet and humid environments.
KapStone TEA-Kraft® Testing from KapStone on Vimeo.


High Performance Multiwall 296.63 kB KB
Imperial - TAD Sheets 1.15 MB KB
Metric - TAD Sheets 1.31 MB KB