Method for producing high-performance suede superfine fiber synthetic leather for clothes

A technology of superfine fiber and production method, applied in the directions of fiber treatment, biochemical fiber treatment, dyeing method, etc., can solve the problem that the dispersion degree of superfine fiber is not as good as that of suede superfine fiber synthetic leather, the pile is scattered, and the fastness to washing is poor. and other problems, to achieve the effect of improving softness and hand feel characteristics, improving color and color fastness, and improving water vapor permeability

Inactive Publication Date: 2012-05-09
福建可利得皮革纤维有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

(2) The softness and feel of suede microfiber synthetic leather are far from those of natural leather. This is mainly because the microfiber synthetic leather is based on superfine fiber non-woven fabric and impregnated with polyurethane slurry to form a porous surface. Composite materials with a structure, the dispersion of microfibers is far less than that of natural leather; (3) the dyeability of suede microfiber synthetic leather is poor, and the dyeing fastness is not high
This is mainly because the superfine fiber synthetic leather mainly includes two components: superfine fiber nonwoven fabric and impregnated and filled

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Step 1: Hydrolytic impregnation

[0032] Firstly, the superfine fiber synthetic leather base cloth is hydrolyzed through the hydrolysis tank filled with enzyme hydrolyzate, the hydrolysis temperature is 35°C, and the time is 30 minutes;

[0033] The enzyme hydrolyzate is based on the weight of the superfine fiber synthetic leather base cloth, including 500% water, 0.1% diethanolamine, 0.5% pancreatin and 0.3% 1398 neutral protease;

[0034] Then place the hydrolyzed microfiber synthetic leather base in an immersion tank containing a hydrolyzed gelatin immersion solution for immersion at a temperature of 40°C for 10 minutes;

[0035] The hydrolyzed gelatin dipping solution is based on the weight of the superfine fiber synthetic leather base cloth, including 1000%, water and 10% hydrolyzed gelatin;

[0036] Finally, the impregnated microfiber synthetic leather base is arranged in a fixing tank, and the hydrolyzed gelatin is fixed at 35°C for 20 minutes with a glutaraldehyd...

Embodiment 2

[0051] Step 1: Hydrolytic impregnation

[0052] Firstly, the superfine fiber synthetic leather base cloth is hydrolyzed through the hydrolysis tank filled with enzyme hydrolyzate, the hydrolysis temperature is 40°C, and the time is 10 minutes;

[0053] The enzyme hydrolyzate is based on the weight of the superfine fiber synthetic leather base cloth, including 300% water, 0.2% diethanolamine, 0.8% pancreatin and 0.5% 1398 neutral protease;

[0054] Then place the hydrolyzed superfine fiber synthetic leather base in an immersion tank containing a hydrolyzed gelatin immersion solution for immersion at a temperature of 38°C for 20 minutes;

[0055] The hydrolyzed gelatin dipping solution is based on the weight of the superfine fiber synthetic leather base cloth, including 500% water and 6% hydrolyzed gelatin;

[0056] Finally, the impregnated microfiber synthetic leather base is arranged in a fixing tank, and the hydrolyzed gelatin is fixed for 15 minutes at 36° C. with glutarald...

Embodiment 3

[0071] Step 1: Hydrolytic impregnation

[0072] Firstly, the superfine fiber synthetic leather base cloth is hydrolyzed through the hydrolysis tank filled with enzyme hydrolyzate, the hydrolysis temperature is 38°C, and the time is 20 minutes;

[0073] The enzyme hydrolyzate is based on the weight of the superfine fiber synthetic leather base cloth, including 1000% water, 0.3% diethanolamine, 0.3% pancreatin and 0.6% 1398 neutral protease;

[0074] Then place the hydrolyzed superfine fiber synthetic leather base in an immersion tank filled with hydrolyzed gelatin immersion solution for immersion at a temperature of 35°C for 30 minutes;

[0075] The hydrolyzed gelatin dipping solution is based on the weight of the superfine fiber synthetic leather base cloth, including 300% water and 5% hydrolyzed gelatin;

[0076] Finally, the impregnated microfiber synthetic leather base is arranged in a fixing tank, and the hydrolyzed gelatin is fixed for 5 minutes at 40° C. with glutaralde...

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PUM

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Abstract

The invention discloses a method for producing high-performance suede superfine fiber synthetic leather for clothes. Superfine fiber synthetic leather base cloth is used as a base material; by adopting the technologies of combined hydrolysis of diethanol amine and multiple enzyme preparations, surface adsorption modification of hydrolyzed gelatin and cross-linking immobilization of glutaraldehyde, the water vapor permeability of the suede superfine fiber synthetic leather is improved; the superfine fibers are fully dispersed and lubricated by adopting a combined greasing technology of multiple greasing agents, so that the softness and the handfeel property of the suede superfine fiber synthetic leather are improved; by adopting a one-bath dyeing technology of a metal complex dye and a disperse dye in a ratio of 1:1 and a color fixing technology of a macromolecular color fixing agent, the luster and the dyeing fastness of the suede superfine fiber synthetic leather are improved; and byadopting a technology of combining mechanical raising and cutting, the 'writing effect' of the suede of the suede superfine fiber synthetic leather is improved, and the suede superfine fiber synthetic leather is endowed with good chamois appearance. Under the condition that the conventional physical and mechanical properties are met, the dry scraping fastness of the surface color of the produced suede superfine fiber synthetic leather is more than or equal to level 4, the wet scraping fastness of the surface color is more than or equal to level 3, and the water vapor permeability is more thanor equal to 1.5mg/cm<2>.h.

Description

technical field [0001] The invention relates to a production process of superfine fiber synthetic leather, in particular to a production method of high-performance suede superfine fiber synthetic leather for clothing. Background technique [0002] Natural leather resources are limited, and the production process will produce relatively large pollution. The development of artificial synthetic leather with excellent performance has become the pursuit of human beings. Among them, the superfine fiber non-woven fabric with three-dimensional network structure is used as the reinforcing material, and the superfine fiber synthetic leather obtained by impregnating polyurethane is close to the microfiber in terms of internal microstructure, appearance texture, physical properties and people's wearing comfort. Made of natural leather. [0003] The development of my country's microfiber synthetic leather industry has only been in the course of more than ten years, and it has developed ...

Claims

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Application Information

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IPC IPC(8): D06M16/00C12S11/00D06M13/368D06M15/15D06M13/123D06M13/262D06M15/263D06M15/423D06P1/00D06P1/16D06P5/04D06C11/00D06C13/00
Inventor 施凌山马兴元牛建民张晓镭
Owner 福建可利得皮革纤维有限公司
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