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Method for producing high-content regenerated fiber composite material for cars

A technology of regenerated fiber and composite materials, which is applied in the direction of non-woven fabrics, textiles and papermaking, etc., can solve the problems of unfavorable carpet composite processing, automobile carpet assembly, products are easily deformed by heat, and poor dimensional stability of felts, and achieve good dimensions and manufacturing methods Simple and stable effect

Inactive Publication Date: 2009-06-24
SHANGHAI JIASHENG FELT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. The cost is high, the price of general regenerated fiber is only 1 / 3 of regular fiber
[0005] 2. The dimensional stability of the felt is poor. The reason is that when the amount of chemical fiber added is large, the product is easily deformed by heat.
[0006] 3. The polypropylene content in the felt is high, which is not conducive to the next step of carpet composite processing and the assembly of automobile carpets in the assembly plant

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] According to the ratio of polypropylene / polyester / regenerated fiber = 68 / 2 / 30 (weight ratio), these three fibers were mixed in batch and wool machines under the condition that the speed of the beater (the part of the mixer) was 50 rpm After turning for 20 minutes; then beat into the wool hopper of the wool spinning carding machine and mix for 10 minutes, the beater (the part of the mixer) is 70 rpm, and the feeding speed is 100kg / hour; The mixer is added to the carding machine for carding, and the rotation speed of the opening wheel is 1000 rpm; the felt is stabbed tightly through upper needle punching, lower needle punching, and then upper needle punching, and finally hot-rolled at a temperature of 180 ° C for 3 minutes. Car felt is 740g / m 2 ; Bending stiffness is 8N; Dimensional stability is: after heat treatment at 100 ° C for 100 hours, the warp shrinks 0.2%, and the weft shrinks 0.1%.

Embodiment 2

[0045] According to the ratio of polypropylene / polyester / regenerated fiber = 60 / 0 / 38 (weight ratio), the method of Example 1 is used, and the hot rolling temperature is 180 ° C, the time is 4 minutes, and the warp shrinks after heat treatment at 100 ° C and 100 hours. 0.1%, 0 shrinkage in weft.

Embodiment 3

[0047] According to the ratio of polypropylene / polyester / regenerated fiber = 58 / 2 / 40 (weight ratio), the method of Example 1 is adopted, and the hot rolling temperature is 220 ° C for 3 minutes, and the obtained automotive felt is 720 g / m 2 , the dimensional stability is: after heat treatment at 100 ° C for 100 hours, the warp shrinkage is 0 and the weft shrinkage is 0.

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PUM

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Abstract

The invention relates to a method for manufacturing high content regenerated fiber automobile composite material, which adopts the steps: 1. 58-70% of polypropylene fiber, 2-0% of terylene and 40-30% of regenerated fiber are mixed according to the usage ratio weight percentage; 2. after being processed by opening and mixed for 3-5 times, the polypropylene fiber, the terylene and the regenerated fiber are evenly mixed together; 3. the evenly mixed fiber is carded, and the carded fibrous reticulum is compounded, and treated by prickling to be strengthened for 3-5 times; 4. the polypropylene fiber in a needled-punched felt is melted by hot rolling, thus forming a polypropylene complex strengthened by the regenerated fiber; the polypropylene complex is made into coiled material, and then is cut out to be an automobile felt. The method for manufacturing the automobile composite material is simple and feasible, and especially uses the regenerated fiber which is spinning waste with low price, thus reducing the total cost; the manufactured automobile felt has good uniformity.

Description

technical field [0001] The invention relates to a composite material or a composite felt for automobiles, in particular to a method for manufacturing a composite material or a felt for automobiles with high regenerated fiber content. Background technique [0002] Recycled fibers refer to scraps from garment factories, scraps from automobile interior parts factories or wastes from textile factories, which are made into short fibers after being opened. Because the staple fiber is the waste of textile and garment industry, its price is cheap, and its composition is relatively complex, but generally, polyester other than cotton is used as the main raw material, and the polyester content is 0-65%. [0003] Although the traditional method of manufacturing composite materials or felts for automobiles uses regenerated fibers as one of the raw materials, the general dosage is only 10% to 20%, so there are the following disadvantages: [0004] 1. The cost is high, and the price of ge...

Claims

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Application Information

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IPC IPC(8): D04H1/48D04H1/4382D04H1/485
Inventor 成晓旭吴玉莉
Owner SHANGHAI JIASHENG FELT
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