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Warp-runner triple layer fabric with paired intrinsic warp binders

A fabric and warp technology, applied in the field of papermaking, can solve problems such as damage to the forming layer paper, fabric breakage, etc.

Inactive Publication Date: 2007-07-18
ALBANY INT CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

One problem with three-ply fabrics is the relative slippage between the two layers, which can break the fabric over time
In addition, binding yarns can disrupt the structure of the forming layer causing paper marks

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Warp-runner triple layer fabric with paired intrinsic warp binders

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Embodiment Construction

[0023] A preferred embodiment of the present invention describes a three-ply fabric suitable for use in the forming section of a paper machine. The fabric comprises a top or forming layer and a bottom or wear layer. Each layer is composed of interwoven machine direction (MD) yarns or warp yarns and cross-machine direction (CD) yarns or weft yarns. Thus, the fabric consists of forming and fraying weft yarns and forming and fraying warp yarns.

[0024] The forming and wearing layers are held together by forming warp yarns which are interlaced with forming and wearing weft yarns. The forming warp yarns are bonded together in pairs, at least in the forming layer, but also in both layers. Hence, they are called paired intrinsic knots. Here, the term "inner" refers to weaving yarns to provide fiber support to the top layer, rather than simply bonding one layer to another.

[0025] Another feature of the invention is that the warp yarns in the wear layer of the fabric are woven t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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PUM

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Abstract

A papermaker's fabric, usable in a forming section of a paper machine, having a first layer formed of a first system of paired machinedirection (MD) warp yarns interwoven with a first system of cross machine direction (CD) weft yarns and a second layer formed of a second system of MD warp yarns interwoven with a second system of CD weft yarns. The paired MD warp yarns are intrinsic to the first layer and are interwoven with the second system of CD weft yarns to bind the second layer to the first layer. The second system of MD warp yarns forms long floats, or warp runners, on an external surface of the second layer. In this manner, a triple layer forming fabric with paired intrinsic binders and warp-runners may be produced with improved wear side abrasion resistance.

Description

technical field [0001] The present invention relates to papermaking technology. More particularly, the present invention relates to a forming fabric for the forming part of a paper machine. Background technique [0002] In the papermaking process, a cellulosic fiber network is formed by depositing a fiber slurry, ie an aqueous dispersion of cellulosic fibers, on a moving forming fabric in the forming section of a paper machine. A substantial amount of water is drained from the slurry through the forming fabric, leaving a network of cellulosic fibers on the surface of the forming fabric. [0003] From the forming section, the newly formed network of cellulosic fibers proceeds to a press section comprising a series of press nips. The cellulosic fiber web passes through a press nip which is supported by a press fabric or, in the usual case, is supported between two press fabrics. In the press nip, the cellulose fiber network is subjected to pressure which squeezes water out ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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IPC IPC(8): D21F1/00
CPCD21F1/0045D21F1/00
Inventor 杰佛瑞·J·柯雷吉诺
Owner ALBANY INT CORP
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