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WePack Series

Forming fabrics for packaging paper. Stability, lifetime performance, planar surfaces

Forming fabrics

For the production of all paper grades and all types of paper, board, and tissue machines.

ANDRITZ Kufferath offers a wide range of forming fabrics for paper, board, and tissue applications. Our product portfolio covers all paper grades and machine types regardless of width, speed, or configuration.

ANDRITZ Kufferrath – WePack Series

The challenge

Paper mills for packaging papers are confronted with increasing machine speeds, a diversity of machine types, declining furnish quality, increasing demands on paper and board quality, as well as rising energy costs. Our goal is to improve paper strength and printability with simultaneous reduction of basis weight as well as homogenization of the surface topography for better printability.

The solution

Stable fabric design for packaging paper with graphic surface qualities is achieved with a combination of two completely different fabric layers in one functional design. One is oriented to the requirements of graphic paper, the other to the high expectations regarding lifetime in the production of packaging paper. Structure-bound, triple-layer fabrics in warp-bound or weft-bound design results in:

  • Forming fabrics with a fine paper side due to a two-shaft design and the use of comparatively thin yarns
  • Rugged machine side with noticeably higher yarn diameters, an abrasion-resistant material combination, and longer floating designs

ANDRITZ Kufferrath – WePack Series

WePack RUN – proven variety

  • Forming the basis of the product line
  • Robust double-layer and long-floating designs
  • From structures with one and a half layers to warp-bound and weft-bound, triple-layer SSB designs

WePack PRIME – innovative solutions

  • Newly developed design with added value for customers
  • New energy-saving material compositions
  • Containing Q-Line or E-Line monofilaments
  • With more durable machine-side designs
  • Improved fabric layer bonding technology
  • Finely structured paper sides for optimum sheet quality

WePack products at a glance

Features

WePack RUN

WePack PRIME

Wide range of different fabric designs and types (single layer, one and a half layers, double-layer, and triple-layer SSB)

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Widely approved fabric designs for all paper grades

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No limitations regarding paper or board machine types and their speeds

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Up to 20% longer fabric life due to significantly higher wear potentials

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Greater wire section dewatering overall

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Higher retention values due to finer top side of fabric

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Improved formation and better printability with greater surface planarity and more fiber support points

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15-20% savings on friction-related energy costs due to application of the latest material developments: E-Line and Q-Line

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Our services - in addition to our fabrics:

  • Dewatering measurements
  • Analysis of fabric wear potential and calculation of remaining fabric life
  • Caliper and tension profile over the total width of the fabric
  • Stock jet velocity adjustments
  • Evaluation of turbulence measurements
  • Air permeability profiles
  • Paper tests in the laboratory
  • Layout assistance for forming table
  • Troubleshooting and start-up service
  • Fabric repairs

We document all measurements and provide a report on our analysis to each customer. This is part of our value-added approach to customer satisfaction – the best technology coupled with excellent service support.

    

WePack PRIME technologies

E-Line

Q-Line

QSB

   

E-Line technology

energy savings of up to 20% at the wet-end of your machine

Features

Provides a lower friction coefficient than polyamide and is
applied with alternating polyester weft (CMD) yarns on the undersides of forming fabrics.

Benefits

  • 15-20% lower drive load compared to commonly used polyester/polyamide forming fabrics
  • Reduction of energy costs
  • Improved running characteristics
  • Increase in paper production
  • No change in operation of the paper machine
  • Easy, unchanged fabric handling

E-Line availability

E-Line yarns are available for all ANDRITZ Kufferath triple-layer SSB designs.

20% savings

Compared to polyester/polyamide fabrics still predominantly used today, paper produced with E-Line yarns achieves savings of up to 30%. Abrasion-related changes in fabric properties appear substantially later due to less friction between fabric and vacuum-aided dewatering elements. The preconditions for optimum sheet formation similar to that of a new fabric are preserved for longer.

     

Q-Line technology – a new generation of monofilaments

Features

Our forming fabrics can be woven with 100% or alternating
polyester weft (CMD) yarns on the undersides.

Benefits

  • Offers absolutely planar underside surfaces and allows
    constantly low drive loads throughout the entire operation.
  • Improves directional stability and facilitates fabric guiding.
  • Provides considerably higher resistance to acidic
    chemicals than conventional yarn materials

Q-Line availability

Q-Line yarns are available for ANDRITZ Kufferath triple layer SSB designs.

    

QSB-Technology – a new, more effective way of bonding

Features

Allows a significantly higher number of SSB binder
points

Benefits

  • Thus, QSB PRIME designs:
  • do not show inner wear
  • provide higher CMD strength
  • have reduced elongation during operation
  • enhance surface flatness for
    homogeneous paper profiles

Q-Line availability

QSB-Technology can be applied to fine and robust SSB
fabric designs

Contact

ANDRITZ Kufferath, Germany

Phone: +49 (2421) 801200

Related links

WeCare

WePrint

WeValue

Downloads

WeCare PRIME

WePack PRIME

WePrint PRIME

WeValue PRIME

Products & services - details - ANDRITZ GROUP - servertoken