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Papermaking felt with laminated bottom web

A papermaking felt and lamination technology, which is applied in the directions of papermaking, papermaking, textiles and papermaking to achieve the effects of large water-holding space, high compressive strength, and smooth and delicate surface

Inactive Publication Date: 2012-12-19
应城市恒达工业用呢有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a papermaking felt with a laminated bottom wire to solve the problems in the press section with large roll diameter and high line pressure when medium and high-speed board machines produce high-grammage bobbin base paper and high-grammage gray board paper. Special requirements for larger dehydration capacity of papermaking felts, etc.

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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  • Papermaking felt with laminated bottom web
  • Papermaking felt with laminated bottom web
  • Papermaking felt with laminated bottom web

Examples

Experimental program
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Effect test

Embodiment 1

[0017] The invention comprises a woven laminated base cloth layer and a synthetic fiber fleece layer. The synthetic fiber fleece layer is composed of a surface fiber web 1, a middle layer fiber web 2 and a bottom layer fiber web 6, all of which are polyamide materials. The surface layer fiber web layer 1 is a fine denier synthetic staple fiber fleece, which is laid in two layers, and the fineness range of the synthetic fibers of the fine denier synthetic staple fiber fleece is 3.3dtex, the middle layer fiber web 2 and the bottom layer fiber web 6 are coarse denier synthetic staple fiber fleece And the fineness range of the synthetic fibers of the coarse denier synthetic staple fiber fleece is 22dtex.

[0018] The laminated base fabric layer is composed of the upper base fabric layer 3, the middle base fabric layer 4 and the bottom base fabric layer 5. The upper base fabric warp is made of Φ0.2mm×2 mm×2mm polyamide multifilament, and the warp density is 100 pieces / 10cm , the we...

Embodiment 2

[0023] The invention comprises a woven laminated base cloth layer and a synthetic fiber fleece layer. The synthetic fiber fleece layer is composed of a surface fiber web 1, a middle layer fiber web 2 and a bottom layer fiber web 6, all of which are polyamide materials. The surface layer fiber web layer 1 is a fine denier synthetic staple fiber wool net, which is laid in 3 layers, and the fineness range of the synthetic fibers of the fine denier synthetic staple fiber wool net is 22dtex, the middle layer fiber net 2 and the bottom layer fiber net 6 are coarse denier synthetic staple fiber wool nets and The denier range of the synthetic fibers of the coarse synthetic staple fiber fleece is 66 dtex.

[0024] The laminated base fabric layer is composed of the upper base fabric layer 3, the middle base fabric layer 4 and the bottom base fabric layer 5. The upper base fabric warp is made of Φ0.2mm×2 mm×2mm polyamide multifilament, and the warp density is 100 pieces / 10cm , the weft i...

Embodiment 3

[0029] The invention comprises a woven laminated base cloth layer and a synthetic fiber fleece layer. The synthetic fiber fleece layer is composed of a surface fiber web 1, a middle layer fiber web 2 and a bottom layer fiber web 6, all of which are polyamide materials. The surface layer fiber web layer 1 is a fine denier synthetic staple fiber fleece, which is laid in 2 layers, and the fineness range of the synthetic fibers of the fine denier synthetic staple fiber fleece is 10dtex, the middle layer fiber web 2 and the bottom layer fiber web 6 are coarse denier synthetic staple fiber fleece and The denier range of the synthetic fibers of the coarse synthetic staple fiber fleece is 44 dtex.

[0030] The laminated base fabric layer is composed of the upper base fabric layer 3, the middle base fabric layer 4 and the bottom base fabric layer 5. The upper base fabric warp is made of Φ0.2mm×2 mm×2mm polyamide multifilament, and the warp density is 100 pieces / 10cm , the weft is made ...

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Abstract

The invention discloses a papermaking felt with a laminated bottom web. The papermaking felt comprises a woven laminated base cloth layer and a synthetic fiber wool web layer; the laminated base cloth layer and the synthetic fiber wool web layer are combined by an acupuncture method; the synthetic fiber wool web layer is composed of a surface layer fiber web, a middle layer fiber web and a bottom layer fiber web; the surface layer fiber web and the middle layer fiber web are orderly paved on the right side of the laminated base cloth layer; the bottom layer fiber web is paved on the reverse side of the laminated base cloth layer; the laminated base cloth layer is composed of an upper layer base cloth layer, a middle layer base cloth layer and a bottom layer base cloth layer; the structures of the upper layer base cloth layer and the bottom layer base cloth layer are 1 / 1 plain weaves or 1 / 3, 1 / 5, 2 / 2 broken twill weaves; the middle layer base cloth layer is a spiral web woven by a warp and a weft, and the spiral web is of a spiral ring structure. The papermaking felt adopts the spiral web structure, and the longitudinal spiral ring structure of the spiral web has large elasticity and pressure resistance, so that the papermaking felt has larger water containing space and elastic reversion rate.

Description

technical field [0001] The invention relates to a felt for the press section of a paper machine, in particular to a laminated bottom wire papermaking felt. Background technique [0002] In the modern papermaking process, people usually divide the paper machine into three parts, that is, the part where the wet paper sheet is formed from the initial pulp suspension is called the forming part, and the subsequent part is mechanically pressed to further remove the moisture in the wet paper sheet. The part is called the press section, and finally the steam-heated drying cylinder is used to drain the remaining moisture in the wet paper until the moisture content of the paper reaches the required standard, which is called the drying section. As we all know, the above three parts of the paper machine must rely on special fabrics for smooth operation and production. Among them, the press section is an important part that connects the preceding and the following. As we all know, 1% of...

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): D21F7/08B32B27/02B32B27/12B32B27/34B32B33/00D03D13/00
Inventor 李文山
Owner 应城市恒达工业用呢有限公司