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Successively-impregnating after-finishing method of suede-like superfine fiber synthetic leather

A technology of ultra-fine fiber and synthetic leather, applied in the field of synthetic leather, can solve the problems of waste water, soft treatment waste water, and dyeing, and achieve the effect of simple operation, high color fastness, and good waterproof

Active Publication Date: 2014-12-03
JIANGSU KEMEI NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, in the field of superfine fiber synthetic leather technology, the main problem in the finishing of suede solvent-type polyurethane superfine fiber synthetic leather is that dyeing wastewater and softening wastewater will be generated in the finishing process. put a lot of pressure on the business

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] 1) In parts by weight, dissolve 3 parts of neutral dye with 65 parts of water, make a neutral dye solution and put it into the dipping tank, then pass the non-island-fixed superfine fiber synthetic leather base cloth through the dipping tank Immerse the neutral dye solution, and then control the impregnation amount of the neutral dye solution to be 80% of the weight of the non-stationary superfine fiber synthetic leather base cloth by rollers, and then dry it in an oven at 120°C to obtain the dyed base cloth ;

[0026] 2) In parts by weight, dilute 2 parts of block hydrophilic silicone oil N-3401 with 80 parts of water and put it into the dipping tank, then pass the dyed base cloth through the dipping tank to impregnate the dyed base cloth with silicone emulsion, Control the impregnation amount of the neutral dye solution by rollers to be 100% of the weight of the non-island superfine fiber synthetic leather base cloth, then dry it in an oven at 142° C. to obtain a soft...

Embodiment 2

[0029] 1) In parts by weight, dissolve 5 parts of neutral dye with 70 parts of water, make a neutral dye solution and put it into the dipping tank, then pass the non-island-fixed superfine fiber synthetic leather base cloth through the dipping tank Immerse the neutral dye solution, and then control the impregnation amount of the neutral dye solution to 60% of the weight of the non-stationary superfine fiber synthetic leather base cloth by rollers, and then dry it in an oven at 130°C to obtain the dyed base cloth ;

[0030] 2) In parts by weight, dilute 4 parts of high-concentration silicone resin emulsion smoothing agent N-3508 with 90 parts of water and put it into the dipping tank, then pass the dyed base cloth through the dipping tank to impregnate the dyed base cloth with organic Silicone emulsion, and then the impregnation amount of the neutral dye solution is controlled by rollers to be 80% of the weight of the non-island superfine fiber synthetic leather base cloth, and...

Embodiment 3

[0033] 1) In parts by weight, dissolve 4 parts of neutral dye with 60 parts of water, make a neutral dye solution and put it into the dipping tank, then pass the non-island-fixed superfine fiber synthetic leather base cloth through the dipping tank Immerse the neutral dye solution, and then pass the roll to control the impregnation amount of the neutral dye solution to be 72% of the weight of the non-island superfine fiber synthetic leather base cloth, and then dry it in an oven at 150°C to obtain the dyed base cloth ;

[0034] 2) In parts by weight, dilute 3 parts of block hydrophilic silicone oil N-3401 with 100 parts of water and put it into the dipping tank, then pass the dyed base cloth through the dipping tank to impregnate the dyed base cloth with silicone emulsion, Control the impregnation amount of the neutral dye solution by rollers to be 89% of the weight of the non-island superfine fiber synthetic leather base cloth, then dry it in an oven at 120°C to obtain a soft...

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Abstract

The invention relates to a successively-impregnating after-finishing method of suede-like superfine fiber synthetic leather. The method comprises the steps of impregnating unfigured islands-in-sea superfine fiber synthetic leather base cloth with neutral dye liquid, drying for dyeing the unfigured islands-in-sea superfine fiber synthetic leather base cloth to obtain the dyed base cloth; impregnating the dyed base cloth with organic silicone emulsion, and drying the dyed base cloth for softening treatment to obtain softened base cloth; impregnating the softened base cloth with fluororesin emulsion, and drying for three-proofing treatment to the softened base cloth, thereby achieving successively-impregnating after-finishing to the suede-like superfine fiber synthetic leather. The method totally adopts the environment-friendly materials and the clean production process to obtain the water-proofing suede-like superfine fiber synthetic leather, therefore, the level of the suede-like superfine fiber synthetic leather is greatly improved and good application prospect is achieved.

Description

technical field [0001] The invention relates to the technical field of synthetic leather, in particular to a continuous dipping finishing method for suede superfine fiber synthetic leather. 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. At present, more than 90% of the world's high-end sports shoes are made of microfiber synthetic leather, most of the three major ball leathers are made of microfiber synthetic leat...

Claims

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Application Information

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IPC IPC(8): D06N3/14D06B9/00D06B3/10D06C19/00
Inventor 马兴元郭梦亚高静胡雪丽
Owner JIANGSU KEMEI NEW MATERIALS
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