Process for making composite fabric needle felt

A composite fiber and production method technology, applied in textiles, papermaking, non-woven fabrics, etc., can solve the problems of high molding pressure, limited development, low glass fiber content, etc., to improve strength and modulus, improve production efficiency, and save money. The effect of going to the follow-up process

Inactive Publication Date: 2005-06-22
EAST CHINA UNIV OF SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the disadvantages of these two methods are: low glass fiber content, low strength, uneven distribution of glass fiber, high molding pressure, etc., which limit its development.

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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  • Process for making composite fabric needle felt

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Experimental program
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Effect test

Embodiment Construction

[0007] The specific embodiment of the present invention is as follows: the dried composite fiber yarn 1 is evenly taken off by the throwing roller 3 through the ceramic guide hole 2 by the creel and falls on the conveyor belt 4, and the throwing roller is composed of a driving roller and It is composed of a driven roller, and the two rollers are close together. The driving roller is driven to rotate at 200-600m / min by the frequency conversion motor, thereby driving the driven roller to rotate in the opposite direction to the driving roller, and the composite fiber passes between the two rollers. The mutual pressing rotation of the two rollers is brought under the throwing roller. The throwing roller is composed of special rubber and plastic to ensure that the composite yarn can pass through the throwing roller smoothly and evenly and drop on the conveyor belt, without being entangled on the throwing roller due to its adhesion with the throwing roller. After the composite yarn ...

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Abstract

The invention discloses a process for preparing composite fiber punched felt consisting of fiber glass and polypropylene fiber, which comprises introducing the composite fiber into the two filament throwing rollers, falling down to the conveyer belt, securing the structure through twice punching actions, distributing homogeneously, compacting with pressure roller, cutting needed width with a cutting knife, winding up into composite fiber punched felt.

Description

1. Technical field [0001] The invention relates to the field of glass fiber-reinforced resin-based composite materials, and further relates to a method for making a needle-punched felt made of direct yarns compounded of glass fibers and polypropylene fibers. 2. Background technology [0002] Composite materials made of glass fiber reinforced various resins have the characteristics of light weight, high strength, electrical insulation, corrosion resistance, long service life, etc., and have been widely valued and applied in countries all over the world. In particular, glass fiber reinforced thermoplastic resins such as polypropylene and polyethylene have become an important direction for the development of composite materials due to their economy, good impact toughness, easy molding, easy repair, and easy regeneration. Has developed rapidly. This composite material is generally mixed with chopped glass fiber and thermoplastic resin particles, and then extruded through a scre...

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): D04H3/004D04H3/007D04H3/105
Inventor 张志法刘颖张国刘鑫张维祥王振水王炎涛沈彦明
Owner EAST CHINA UNIV OF SCI & TECH
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