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Composite non-woven cloth, composite board as well as production method thereof

A technology of non-woven fabrics and composite boards, applied in chemical instruments and methods, synthetic resin layered products, layered products, etc., can solve the problems of cracking or deformation of composite materials, poor bending strength, temperature resistance, dimensional stability, and high cost. Achieve high initial bending strength, good dimensional stability and low production cost

Inactive Publication Date: 2014-01-29
TORAY FIBER RES INST(CHINA) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the existing automotive interior parts mostly use chemically synthesized materials, which are non-renewable, and will cause certain pollution to the environment after processing, and the strength of the obtained plate products cannot be satisfied.
[0003] For example, the Chinese published patent CN101812773 discloses a composite material for automotive interior parts and a production method thereof. The patent uses polylactic acid fibers mixed with natural fibers to obtain a fiber web as a non-woven fabric layer, and then post-processes to obtain a composite material, because only One or more layers of non-woven fabrics are processed, so if the obtained composite material is under high and low temperature conditions, the composite material is easy to crack or deform, that is, its bending strength and temperature-resistant dimensional stability are poor
[0004] Another example is the Chinese published patent CN1400092 which discloses a manufacturing method of resin molding parts. The patent uses a resin molding material made of reinforcing fibers and biodegradable resins. This resin molding material can only be placed in a high temperature environment for a short time. Moreover, the reinforcing fiber is an inorganic fiber, which consumes a lot of energy, is costly, and is not environmentally friendly during the processing and weaving process.

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 1

[0043] (1) Preparation of non-woven fabric layer: Polylactic acid fiber with a strength of 4.6cN / dtex and a length of 5.1cm and a kenaf fiber with a strength of 3.2cN / dtex and an elongation at break of 6.5% and a length of 8.5cm Mix with a weight ratio of 30:70, put the mixed fibers into the opener for opening, and then send them into the cotton box for carding, send the carded fibers into the web lapper for cross-laying, and lay them The mesh is folded and fed into the needle loom. The needle model used is 36#, and the needle punching density is 30 pcs / cm 2 Acupuncture is performed to obtain a fiber web as a non-woven fabric layer, and the machine speed can be adjusted according to needs to obtain non-woven fabric layers of different grammes;

[0044] (2) Preparation of the fabric layer: weave kenaf yarn with a denier of 835 dtex into a kenaf woven fabric with a warp and weft density of 60 threads / 10cm as the fabric layer;

[0045] (3) Preparation of composite structure: The...

Embodiment 2

[0049] (1) Preparation of nonwoven fabric: Polylactic acid fiber with a strength of 4.6cN / dtex and a length of 7.6cm and a kenaf fiber with a strength of 3.1cN / dtex and an elongation at break of 5.9% and a length of 7.5cm were measured by weight. Mixing at a ratio of 50:50, put the mixed fibers into the opener for opening, then send them into the cotton box for carding, send the carded fibers into the web lapper for cross-laying, and lay the laid web After being folded, it is sent to the acupuncture machine, the type of needle used is 36#, and the needle punching density is 30 pieces / cm 2 Needle felting to obtain fiber webs as non-woven fabric layers; machine speed can be adjusted according to needs to produce non-woven fabric layers of different grammes;

[0050] (2) Preparation of the fabric layer: weave cotton yarn with a denier of 580 dtex into a cotton woven fabric with a warp and weft density of 88 threads / 10cm as the fabric layer;

[0051] (3) Preparation of the compos...

Embodiment 3

[0055] (1) Preparation of non-woven fabric layer: Polylactic acid fiber with a strength of 5.2cN / dtex and a length of 5.1cm and a kenaf fiber with a strength of 3.3cN / dtex and an elongation at break of 6.0% and a length of 12.0cm were The weight ratio is 30:70 for mixing, and the mixed fibers are put into the opener for opening, and then sent to the cotton box for carding, and the carded fibers are sent to the web-laying machine for cross-laying, and the laid After the net is folded, it is fed into the acupuncture machine. The type of needle used is 36#, and the needle punching density is 30 pieces / cm 2 Needle felting to obtain fiber webs as non-woven fabric layers; machine speed can be adjusted according to needs to produce non-woven fabric layers of different grammes;

[0056] (2) Preparation of the fabric layer: Weave the Tencel yarn with a denier of 485 dtex into a Tencel woven fabric with a warp and weft density of 92 threads / 10cm as the fabric layer;

[0057] (3) Prepar...

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 composite non-woven cloth, a composite board as well as a production method thereof. The composite non-woven cloth at least comprises a composite structure body, wherein the composite structure body comprises a fabric layer and a non-woven cloth layer; the non-woven cloth layer forming the composite structure layer is arranged on one side or two sides of the fabric layer; polylactic acid fibers and kenaf fibers are contained in the non-woven cloth layer. The composite board at least comprises one fabric layer and a resin layer, wherein the fabric layer is arranged on the surface or the middle part of the resin layer; a polylactic acid substrate and the kenaf fibers are contained in the resin layer, and the kenaf fibers are dispersed in the polylactic acid substrate. The composite non-woven fabric disclosed by the invention has characteristic of high strength; the composite board has characteristics of high bending strength, good dimension stability, no environmental pollution and low production cost.

Description

technical field [0001] The invention relates to a composite nonwoven fabric, a composite board and a production method thereof. Background technique [0002] At present, the use of natural plant fibers with the most abundant resources in nature to develop composite materials with excellent performance and low price has attracted people's attention. Natural plant fiber has excellent characteristics such as low price, light weight, high specific strength and specific stiffness, especially it is a renewable resource and a naturally degradable material, which is unmatched by other reinforcing materials. For example, the existing automotive interior parts mostly use chemically synthesized materials, which are non-renewable and cause certain pollution to the environment after processing, and the strength of the obtained plate products cannot be satisfied. [0003] For example, the Chinese published patent CN101812773 discloses a composite material for automotive interior parts an...

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): B32B9/04B32B27/06B32B37/06B32B37/08D04H1/435D04H1/425B29C51/02B29C51/46
Inventor 杨丽丽高冬燕
Owner TORAY FIBER RES INST(CHINA) CO LTD
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