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Three-layer non-mixed bottom net papermaking press felt

A technology for pressing felt and bottom wire, applied in textiles and papermaking, papermaking, papermaking, etc., can solve the problems of uneven pressure distribution in the nip, reduce the compaction resistance and dewatering performance of the felt, and reduce the wear of the felt, etc. The effect of improving wear resistance, wear resistance and wear resistance

Active Publication Date: 2008-03-26
SICHUAN VANOV TECH FABRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the impact of the raised warp and weft interweaving points on the bottom net on the press felt is as follows: ①The pressure distribution in the nip is uneven due to the raised interweaving points; Press felt; ③The raised interweaving points, especially the raised weft floating points, are easy to cause the felt to be worn; ④When making a multi-layer laminated bottom net press felt, the yarns of adjacent layers are parallel, and after being pressed, The upper and lower yarns will be embedded in each other, which will greatly reduce the anti-compaction ability and dehydration performance of the felt

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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  • Three-layer non-mixed bottom net papermaking press felt
  • Three-layer non-mixed bottom net papermaking press felt

Examples

Experimental program
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Embodiment Construction

[0012] The present invention will be described in further detail below in conjunction with accompanying drawing and embodiment: the bottom net of this blanket is made up of three layers of woven fabrics altogether of upper layer 8, middle layer 9 and lower layer 10. Wherein the upper layer 8 is woven by warp threads 1 and weft threads 3 . Likewise, the lower layer 10 is also woven by warp threads 2 and weft threads 6 . And the used weft 2 and weft 6 of upper layer 8 and lower layer 10 are polyvinyl formal fiber filaments of 100d. Simultaneously part warp thread 1 and warp thread 2 of upper strata 8 and lower floor 10 also will connect them with connecting wire 4,7, and used connecting wire 4,7 is also the polyvinyl formal fiber long filament of 100d. And the middle layer 9 between the upper floor 8 and the lower floor 10 is to use 0.8mm nylon monofilament as only the weft yarn layer of the weft 5; The warp threads 1 and weft threads 3 of 8 are braided together, and then part...

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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Abstract

The invention discloses multilayer bottom mesh paper making felt with non interlaced warp and weft. It is formed by stabbing fiber web at the side of the bottom web. It is added weft layer as middle layer, used Vienna yarn as upper and lower layer fabric weft and warp connecting line. The bottom web is stabbed and washed to form three layers with non interlaced warp and weft after soluble fiber yarn hydrolyzing. It has good gas and water permeability, flattening, and wear, compression, cockle resilience.

Description

Technical field [0001] The present invention relates to a press felt used in papermaking equipment. Specifically, it is a papermaking press felt with a multi-layer bottom net whose warp and weft yarns are not interlaced. Background technique [0002] The use of paper press felts in the papermaking process has long been recognized in the papermaking industry. Since a large amount of water is used in the papermaking process, the press felt for carrying papermaking materials must have good paper web dehydration performance, good anti-compaction performance, anti-clogging performance, good wear resistance and good pressure microscopic uniformity. Conventional press felts (including laminated layers) all use conventional fabric weaving bottom nets as the base material of the felt, and then are formed by laying and needling. Due to the characteristics of the fabric structure, the warp and weft yarns must rise and fall to form interweaving points, and then form the fabric. Howe...

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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Patent Type & Authority Patents(China)
IPC IPC(8): D21F7/08
Inventor 戴永君朱友胜谢宗国周兴富彭浦艳
Owner SICHUAN VANOV TECH FABRIC
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