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Method for producing fiber non-woven fabric superfine fiber synthetic leather

A non-woven, synthetic leather technology, applied in textiles and papermaking, chemical instruments and methods, fabric kneading/softening, etc. Poor physical and mechanical properties and other problems, to achieve the effect of soft and rich hand feel, beautiful appearance, smooth and full pattern

Active Publication Date: 2013-07-24
WUXI DOUBLE ELEPHANT MICRO FIBER MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the above disadvantages, to provide a non-woven imitation microfiber synthetic leather manufacturing method, aiming at the weakness of the current microfiber synthetic leather, which has a beautiful appearance and high internal performance but is expensive, while ordinary non-woven fabrics The synthetic leather does not have a soft and rich hand feeling and cannot completely solve the problems of kneading smoothness, rib feeling and poor physical and mechanical properties. The use of special fiber non-woven fabrics and special process formulas can easily solve the problem

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

[0015] Purchase viscose fiber and PA spunlace non-woven fabrics (customized by Xiaoshan Hangmin Nonwovens Co., Ltd.) at a ratio of 50 / 50. The thickness of the non-woven fabric is 0.7m / m, and the weight is 110g / m2.

[0016] Base cloth wet impregnation: in the dimethylformamide solution containing 20% ​​mass concentration of polyurethane resin slurry, take out the base cloth, scrape off the excess polyurethane resin slurry containing 20% ​​mass concentration in the base cloth with a soft scraper The dimethylformamide solution of the raw material, and control the minimum content of the dimethylformamide solution containing the polyurethane resin slurry with a mass concentration of 20% (the coating amount is 0.5kg / m); after that, the 60% concentration of polyurethane The dimethylformamide solution of the resin slurry is coated with 160 strips by a coating knife on the base cloth soaked in the dimethylformamide solution containing 20% ​​of the mass concentration of the polyurethane ...

Embodiment 2

[0019] Embodiment 2 A kind of manufacture method of fiber non-woven superfiber synthetic leather

[0020] (1) Wet impregnation: take the special fiber non-woven fabric as the base fabric, and impregnate it in the dimethylformamide solution of polyurethane resin slurry with a mass concentration of 15%, so that the base fabric is completely saturated, and control the impregnation of the base fabric with a scraper. The amount of cloth polyurethane size resin and dimethylformamide solution, so that the coating amount is 0.4~0.6 kg / m;

[0021] (2) Coating: use a coating knife to coat a dimethylformamide solution of polyurethane resin slurry with a mass concentration of 50% on the base cloth obtained in step (1), and control the coating amount on the base cloth to 1.2~1.4 kg / m;

[0022] (3) Solidification: Immerse the base fabric obtained in step (2) in an aqueous solution of dimethylformamide with a mass concentration of 15%, and use water to replace the dimethylformamide in the b...

Embodiment 3

[0027] Embodiment 3 A kind of manufacture method of fiber non-woven superfiber synthetic leather

[0028] (1) Wet impregnation: take the special fiber non-woven fabric as the base fabric, and impregnate it in the dimethylformamide solution of polyurethane resin slurry with a mass concentration of 25%, so that the base fabric is fully saturated, and control the impregnation of the base fabric with a scraper. The amount of cloth polyurethane size resin and dimethylformamide solution, so that its coating amount is 0.6 kg / m;

[0029] (2) Coating: use a coating knife to coat the dimethylformamide solution of polyurethane resin slurry with a mass concentration of 70% on the base cloth obtained in step (1), and control the coating amount on the base cloth to 1.4 kg / m;

[0030] (3) Solidification: immerse the base fabric obtained in step (2) in an aqueous solution of dimethylformamide with a mass concentration of 20%, and use water to replace the dimethylformamide in the base fabric ...

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Abstract

The invention relates to a method for producing fiber non-woven fabric superfine fiber synthetic leather, belonging to the technical field of production of synthetic leather. The method comprises the following steps of wet-method impregnating, coating, solidifying, water washing, drying shaping, dry-method veneering and line rubbing to obtain the fiber non-woven fabric superfine fiber synthetic leather, wherein a special fiber adopted by the method is mucilage glue and PA (Polyamide), mucilage glue fiber has soft hand feeling and good elasticity, the softness of the the mucilage glue fiber isnot basically influenced but the fiber strength of the mucilage glue fiber is worse after the mucilage glue fiber is impregnated in a dimethylformamide solution of polyurethane resin slurry. The PA has better physical mechanical performance, and the softness of the PA is not increased excessively after the PA is impregnated in the dimethylformamide solution of the polyurethane resin slurry. The mucilage glue fiber and the PA both are complemented, and a majority of advantages of superfine fiber synthetic leather can be realized through utilizing a reasonable formula and the technique operation above during a dry-wet method; therefore, the fiber non-woven fabric superfine fiber synthetic leather produced by the method disclosed by the invention has the advantages of soft and thick hand feeling, smooth and full grains and attractive appearance and further has better physical mechanical properties such as strong force, tearing strength and peeling strength.

Description

technical field [0001] The invention relates to a method for manufacturing a non-woven imitation superfiber, belonging to the technical field of synthetic leather production. The method utilizes special fiber non-woven fabrics to make ultra-high imitation microfiber synthetic leather suitable for automobile interior decoration, office furniture and the like. Background technique [0002] In the manufacture of artificial leather, microfiber synthetic leather has the characteristics of beautiful appearance, soft touch and good physical and mechanical properties, and is more and more popular in the market. It is used in high-end car interiors, office furniture, shoe materials, etc. It has a wide range of applications, but the high price of microfiber synthetic leather has caused some downstream leather application manufacturing industries to face higher production cost pressures. In order to ensure the cost advantage of downstream leather application manufacturing industries, t...

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 Patents(China)
IPC IPC(8): D06N3/14D06C19/00D06C23/04B32B3/24B32B37/15B32B38/16
Inventor 邹永华田为坤邵平华晓峰
Owner WUXI DOUBLE ELEPHANT MICRO FIBER MATERIAL
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