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Composite fabric and preparation method thereof as well as composite fabric-based inner decoration fabric of car

A technology for composite fabrics and automotive interiors, applied in the fields of composite fabrics and their preparation, and automotive interior fabrics, can solve the problems of unsuitable clean production, difficult compounding and bonding of polyether polyurethane sponges, etc. Eco-friendly interior and interior life, odor and VOC reduction effects, orange peel effect reduction

Active Publication Date: 2019-01-18
CPL NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, how to compound polyether polyurethane sponge with automotive interior textile fabrics is a difficult problem
The solvent-based glue composite process is not suitable for clean production due to the pollution of the glue
For the flame compounding process, the bonding performance of the melting layer of polyether polyurethane is poorer than that of polyester polyurethane, and a special flame compounding agent is required to treat the compound surface of polyether sponge, which increases the cost. More black smoke, polluting the environment, and the black smoke is easy to condense into black spots, forming unacceptable appearance defects on the cloth surface
For hot melt adhesive dusting or powder dot coating composite process, the coating amount is large, the hand feels hard, it is not easy to eliminate the orange peel effect, and it is difficult to bond polyether polyurethane sponge
The applicant's previous patent application CN201610797222.X provided a method of laminating polyester polyurethane sponge by using hot melt adhesive through a double-point coating process. It replaces the traditional flame lamination process and is a very environmentally friendly lamination process. method, but the bonding performance needs to be further improved. For polyether polyurethane sponge, because its surface is difficult to be bonded by conventional hot melt adhesives such as copolyamide or copolyester hot melt adhesives, it cannot be obtained even with this process. Composite fabric with good bonding performance

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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  • Composite fabric and preparation method thereof as well as composite fabric-based inner decoration fabric of car
  • Composite fabric and preparation method thereof as well as composite fabric-based inner decoration fabric of car
  • Composite fabric and preparation method thereof as well as composite fabric-based inner decoration fabric of car

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Experimental program
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preparation example Construction

[0059]

[0060] The present invention also provides a kind of preparation method of composite fabric, it comprises the following steps:

[0061] Mixing step: mixing piperazine or piperazine hydrate with copolyamide or copolyester hot melt adhesive to obtain a mixed adhesive, the mixing method includes cryogenic pulverization or mixing the two in a solvent; further Specifically, in the present invention, liquid nitrogen is used for cryogenic pulverization, and water is used as a solvent to prepare slurry. The method of cryogenic pulverization and mixing is suitable for double point coating process, and the method of solvent mixing is suitable for slurry point coating process.

[0062] Glue coating step: apply the mixed adhesive on the coating surface of the water-repellent fabric layer through a double-point coating process or a paste-point coating process;

[0063] In the two-point coating process, the primer is a polyacrylate emulsion or a polyurethane emulsion. The particl...

Embodiment 1

[0086] Piperazine hexahydrate was cryogenically crushed into fine powder with liquid nitrogen, and mixed with copolyester hot-melt adhesive (purchased from Shanghai Tianyang Hot-melt Adhesive Co., Ltd., brand 3115, particle size 80-170um) or copolyamide hot melt adhesive (purchased from Shanghai Shati Hot Melt Adhesive Company, brand 5130V, particle size 80-170um) mixed. Then apply it to the car roof fabric (28-needle three-comb warp knitted FDY50DX75DX75D, the square gram weight of the fabric after shaping is about 160 grams, and the water repellency level is about 2) through a two-point coating process, and then at 140 ° C, 2.5 kg / cm 2 , under the condition of 15 seconds, the density is 35kg / m respectively on the roller blanket belt type hot-press laminating machine 3 , polyether polyurethane sponge (purchased from Fupai Bock Company) and polyester polyurethane sponge (purchased from Rexel Company) with a thickness of 3mm are compounded, and after compounding, a peel strengt...

Embodiment 2

[0092] Different contents of piperazine hexahydrate were dissolved in water, and then mixed with copolyester hot melt adhesive (purchased from Shanghai Tianyang Hot Melt Adhesive Company, brand 3115, particle size 0-80um) or copolyamide hot melt adhesive (purchased from Shanghai Shati Hot Melt Adhesive Co., Ltd., brand 5130V, particle size 0-80um) powder, PTF thickener, smoothing agent (purchased from Ningbo Storhousen Company, brand OX), penetrant (Tween 100) were evenly mixed to form Slurry, the concrete formula of slurry is as follows (the sum of the mass fractions of each component is 100%):

[0093] Water: 65-70%; piperazine hexahydrate and hot melt powder (particle size 0-80um): 27-30%

[0094] Thickener PTF: 1-1.5%; Smoothing agent OX: 1-1.5%; Penetrant Tween 100: 0.01-0.02%.

[0095] The solid content of the slurry is about 30±2%. Utilize the paste dot coater to be coated on the same automobile headlining fabric of embodiment 1 again. The parameter of the coating cyli...

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 relates to a composite fabric and a preparation method thereof as well as a composite fabric-based inner decoration fabric of a car. The composite fabric comprises at least one polyurethane sponge layer and at least one water-repellent fabric layer, wherein first adhesive layers which are distributed in a point form are arranged on the water-repellent fabric layer, and one surface ofthe polyurethane sponge layer can be combined with the water-repellent fabric layer through the first adhesive layers; each first adhesive layer comprises a mixture of copolyamide or copolyester hotmelt glue and piperazine or piperazine hydrate. According to the composite fabric, the piperazine or piperazine hydrate is added and is capable of improving the adhering performance of the polyurethane sponge and a textile fabric; the composite fabric is particularly applicable to a compositing technology of polyester type polyurethane sponge and the inner decoration fabric of the car; the environment in the car is clean, sanitary and environmentally friendly, and the service life of inner decoration is long.

Description

technical field [0001] The invention belongs to the technical field of textiles, in particular to a composite fabric, a preparation method thereof and an automobile interior fabric based thereon. Background technique [0002] With the development of the economy, automobiles are playing an increasingly important role in people's lives. People have also put forward new requirements for the comfort, safety and environmental protection of automobiles. The rapid development of the automobile industry has also brought new opportunities for the application of textile materials. As an automotive interior material, textiles play an important role in improving the appearance of the car and improving the comfort of the car. [0003] Automotive interior fabrics are usually composite fabrics. Early application CN01254815.4 discloses a kind of automotive interior fabric, which is made of one layer of woven fabric and one layer of non-woven fabric by using flame method, adhesive, hot mel...

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): B32B5/02B32B27/40B32B27/12B32B7/12B32B37/06B32B37/10B32B37/12B60R13/02
CPCB32B5/02B32B5/18B32B5/245B32B7/12B32B37/06B32B37/10B32B37/1284B32B2266/0278B32B2605/003B60R13/02
Inventor 罗明李文敬潘绿萍吴建军
Owner CPL NEW MATERIAL TECH CO LTD