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Three-dimensional interwoven composite bottom fabric and papermaking felt

A composite bottom and three-dimensional technology, applied in textiles and papermaking, papermaking, papermaking machines, etc., can solve the problems of affecting the water permeability of papermaking felts, shortening the service life of papermaking felts, and clogging gaps, etc., to achieve high resistance to high line pressure and speed up Fast, the effect of improving the ability to withstand high line voltage

Pending Publication Date: 2019-08-20
河南省双龙网毯有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing papermaking felt bottom net has single-layer base net or multi-layer base net. In the bottom net composed of multi-layer base nets, the warp and weft between adjacent base nets are vertical, and the weft or warp of the upper base net It is located between two adjacent weft or warp threads of the lower base network. When the papermaking felt is used in the pressing process of medium and high-speed paper machines, the warp and weft threads may be pressed by each other after overlapping, thus blocking the gap and greatly affecting Improve the water permeability of the papermaking felt, thereby shortening the service life of the papermaking 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-dimensional interwoven composite bottom fabric and papermaking felt
  • Three-dimensional interwoven composite bottom fabric and papermaking felt

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Such as figure 1 A three-dimensional interwoven composite base net is shown, including three layers of base net, which are stitched by needle punching machine. From top to bottom, there are ring weave base net 1, first twill weave base net 2, and second twill weave base net 3. The angle α between the weft of the adjacent ring-woven base net 1 and the weft of the first twill weave base net 2 is 12°, the weft of the first twill weave base net 2 and the weft of the second twill weave base net 3 The included angle β is 10°, and the included angle between two adjacent base nets ensures that the weft between the two base nets is not vertical during use, effectively preventing depression.

[0019] Such as figure 2 A papermaking felt shown, comprising figure 1 A three-dimensional interwoven composite bottom net formed by stitching three layers of base nets, a first bicomponent fiber layer 4 is arranged on the top of the three-dimensional interwoven composite bottom net, and ...

Embodiment 2

[0021] The structures of the three-dimensional interwoven composite bottom wire and papermaking felt in this embodiment are the same as those in Embodiment 1, wherein the included angle α is 5°, and the included angle β is 15°.

Embodiment 3

[0023] The structures of the three-dimensional interwoven composite bottom net and the papermaking felt in this embodiment are the same as those in Embodiment 1, wherein the included angle α is 2°, and the included angle β is 15°.

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 a three-dimensional interwoven composite bottom fabric and a papermaking felt. The bottom fabric comprises at least two base fabrics which are stacked up and down, an includedangle between wefts of the adjacent two base fabrics is 2-15 DEG; and the papermaking felt comprises the three-dimensional interwoven composite bottom fabric and a plurality of fiber layers located atthe upper side and the lower side of the bottom fabric. Warps and wefts of the base fabrics in the three-dimensional interwoven composite bottom fabric are not overlapped after being sewed, a certainincluded angle exists between the warps and wefts of the adjacent base fabrics, and compressed marks do not exist in the use process, so the high line pressure resistance is greatly improved, and thewater permeability is not affected by long-term use. The papermaking felt of the invention has a high resistance to the high line pressure, a high speed increase and a low steam consumption, is suitable for high-rod diameter blind hole pressing, shoe pressing and other pressing forms of medium and high speed paper machines, and is used for making various culture papers, corrugated base papers, high-grade fine dried noodle wrapping paper, paperboards and other types of paper.

Description

technical field [0001] The invention belongs to the technical field of papermaking felts, and in particular relates to a three-dimensional interwoven composite bottom net and papermaking felts. Background technique [0002] Papermaking felt is a special textile used in the press section of a paper machine. It is mainly used for dehydration, supporting paper sheets, and modifying paper sheets. Among them, dehydration is the key function, and it has the characteristics of changing with the use of time. The existing papermaking felt bottom net has a single-layer base net or a multi-layer base net. In the bottom net composed of multi-layer base nets, the warp and weft between adjacent base nets are vertical, and the weft or warp of the upper base net It is located between two adjacent weft or warp threads of the lower base network. When the papermaking felt is used in the pressing process of medium and high-speed paper machines, the warp and weft threads may be pressed by each o...

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 Applications(China)
IPC IPC(8): D21F7/08B32B5/02B32B5/06B32B5/12B32B5/26
CPCD21F7/083B32B5/028B32B5/06B32B5/024B32B5/12B32B5/26B32B2250/20B32B2307/558B32B2554/00
Inventor 邢海军杨学林胡彦杰毕克检
Owner 河南省双龙网毯有限公司
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