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Core-skin type paper making modeling net filament

A papermaking forming fabric and sheath-core technology, applied in papermaking, paper machine, filament/thread forming, etc., can solve the problems of single component, short service life of forming fabric, fiber softness, unsatisfactory dimensional stability, etc.

Inactive Publication Date: 2008-04-16
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The fibers of the existing paper-making forming fabrics are generally a single component, the fiber softness and dimensional stability are not ideal, and the service life of the forming fabrics is short

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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0010] Manufacture sheath-core fibers according to the conventional method of manufacturing sheath-core fibers, extrude them at 290°C, then cool them in water at 40°C, and then stretch them by 4 times in the first stage and 1.3 times in the second stage, and then stretch them at 240 Heat setting at ℃, coiled into bordered monofilament, twisted into four strands or six strands, and the product is obtained. When manufacturing sheath-core fibers, polytrimethylene terephthalate or polybutylene terephthalate is used as the core layer material, and polyethylene terephthalate is used as the skin layer material, and the weight of the skin layer material accounts for the total amount of raw materials. 20~50% (example 20%, 35%, 50%) of weight, core layer weight accounts for 50~80% (example 50%, 65%, 80%) of total raw material weight.

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

The present invention discloses a sheath-core papermaking molding net monofilament, which is sheath-core fiber, wherein, a core layer is polytrimethylene terephthalate or polybutylene terephthalate; a skin layer is polyethylene terephthalate. The present invention is soft in fiber, can prolong the life-span of a molding net by more than 20 percent when compared with the prior common molding net fiber, and is good in the size stability of fiber.

Description

Technical field: [0001] The present invention relates to a chemical fiber. Background technique: [0002] The fiber of the existing papermaking forming net is generally a single component, and the softness and dimensional stability of the fiber are not ideal, and the service life of the forming net is short. Invention content: [0003] The purpose of the present invention is to provide a sheath-core paper forming fabric monofilament with soft fibers and long service life of the forming fabric. [0004] Technical solution of the present invention is: [0005] A sheath-core paper forming net monofilament, characterized in that it is a sheath-core fiber, wherein the core layer is polytrimethylene terephthalate or polybutylene terephthalate, and the cortex is polytrimethylene terephthalate Ethylene formate. [0006] The weight of the skin layer accounts for 20-50% of the weight of the monofilament, and the weight of the core layer accounts for 50-80% of the weight of the mo...

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): D01D5/34D01F6/62D21F1/10
Inventor 马海燕杨西峰马海冬
Owner DONGHUA UNIV
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