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Superfine fiber synthetic leather and production method

A technology of superfine fiber and production method, which is applied in the field of synthetic leather, can solve the problems of poor strength, moisture permeability and air permeability, etc., and achieve the effect of improving peel strength, comfortable wearing and soft hand feeling

Inactive Publication Date: 2011-12-28
浙江元新实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a superfine fiber synthetic leather and its production method to solve the problems of poor strength, moisture permeability and air permeability of common synthetic leather in the prior art, especially synthetic leather for shoe linings

Method used

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  • Superfine fiber synthetic leather and production method
  • Superfine fiber synthetic leather and production method
  • Superfine fiber synthetic leather and production method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] 1. Production of microfiber bottom blank

[0041] Polyvinyl chloride is spun at high temperature to make non-woven fabric, which is impregnated by wet coating to produce a superfine fiber bottom blank; the superfine fiber bottom blank is sheeted with a thickness of 0.6mm; then the bottom blank with a thick sheet is After kneading, dyeing and finishing in the second stage, the base blank is chemically modified by acid hydrolysis and enzyme hydrolysis.

[0042] 2. Ingredients

[0043] 1. Pulping, 30Kg / cm 2 Add 5-10 parts by weight of water-based color paste to 100 parts by weight of water-based polyurethane emulsion, then add 40 parts by weight of water, stir at high speed for 30 minutes, make the temperature of the slurry reach 60 °C, and then add 2% of the total mass of the above substances at the same time to thicken agent and 1% leveling agent, and then stirred for 15 minutes to obtain a slurry, and the viscosity of the prepared floating knife was 1100cps. Add 5-10...

Embodiment 2

[0058] 1. Production of microfiber bottom blank

[0059] Polyvinyl chloride is spun at high temperature to make non-woven fabric, which is impregnated by wet coating to produce a superfine fiber bottom blank; the superfine fiber bottom blank is sheeted with a thickness of 0.7mm; then the bottom blank with a thick sheet is After kneading, dyeing and finishing in the second stage, the base blank is chemically modified by acid hydrolysis and enzyme hydrolysis.

[0060] 2. Ingredients

[0061] 1. Pulping, 40Kg / cm 2 Add 6 parts by weight of water-based color paste to 100 parts by weight of water-based polyurethane emulsion (8000), then add 35 parts by weight of water, stir at high speed for 30 minutes, make the temperature of the slurry reach 60 ° C, and then add 2% of the total mass of the above-mentioned substances at the same time. Thickener and 1% leveling agent (Shanghai Rishen Chemical Co., Ltd., S-23), and then stirred for 15 minutes to obtain a slurry, and the viscosity o...

Embodiment 3

[0076] 1. Production of microfiber bottom blank

[0077] Polyvinyl chloride is spun at high temperature to make non-woven fabric, which is impregnated by wet coating to produce a superfine fiber bottom blank; the superfine fiber bottom blank is sheeted with a thickness of 0.8mm; then the bottom blank with a thick sheet is After kneading, dyeing and finishing in the second stage, the base blank is chemically modified by acid hydrolysis and enzyme hydrolysis.

[0078] 2. Ingredients

[0079] 1. Pulping, 60Kg / cm 2 Add 5 parts by weight of water-based color paste to 100 parts by weight of water-based polyurethane emulsion, then add 35 parts by weight of water, stir at high speed for 30 minutes, make the temperature of the slurry reach 60 ° C, and then add 3% thickener and 2% of the total mass of the substances at the same time. % leveling agent, and then stirred for 15 minutes to obtain a slurry, and the viscosity of the prepared floating knife was 1500cps. Add 6 parts by weigh...

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Abstract

The invention provides a production method of superfine fiber synthetic leather, comprising a superfine fiber bottom blank production step and a dry method surface modeling step. The dry method surface modeling step comprises a burdening step, a draw-off step, an applying step and a post-stage processing step, wherein aqueous polyurethane with the modulus being 30-50Kg / cm<2> is used as a raw material during the burdening step; the draw-off step adopts one knife half production step, which comprises a floating knife draw-off step and a two knife draw-off step; and the applying step adopts the gapped applying. The superfine fiber synthetic leather provided by the invention is produced by the adoption of the superfine fiber and gapped applying production method. The superfine fiber syntheticleather produced in the invention is soft in texture and comfortable to wear. In addition, the peeling strength, tearing strength and hydrolysis resistance of the superfine fiber synthetic leather provided by the invention are improved in comparison with those of common shoe lining synthetic leather.

Description

technical field [0001] The invention relates to the field of synthetic leather, in particular to a superfine fiber synthetic leather and a production method. Background technique [0002] With the development of society and the improvement of human living standards, the requirements for consumer goods are getting higher and higher, and natural leather is one of the hot consumer goods. Due to the constraints of natural conditions and the increasing awareness of animal protection in countries around the world, natural leather is decreasing year by year. In order to replace this natural leather, synthetic leather was invented. [0003] At present, the total domestic demand for synthetic leather reaches 800 million m 2 / Every year, the demand for high-performance, high-environmental protection, and high-quality synthetic leather reaches 200 million m 2 / yearly, with a continuous upward trend. With the development of synthetic leather, consumers have higher and higher require...

Claims

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Application Information

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IPC IPC(8): D06N3/12D06B3/10B05D1/38B05D3/02B32B27/02B32B27/08B32B27/30B32B27/40
Inventor 葛玉君
Owner 浙江元新实业有限公司
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