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Production method of environmentally friendly antifouling synthetic leather

A synthetic leather and environment-friendly technology, applied in the field of synthetic leather, can solve the problems of residual toxic and harmful substances, unfavorable environmental protection and human health, and achieve the effects of superior antifouling performance, shortened time, and time saving

Active Publication Date: 2015-12-16
ZHEJIANG JINSHANG SYNTHETIC LEATHER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the problem of residual toxic and harmful substances in existing synthetic leather products, which is not conducive to environmental protection and human health, and to provide a synthetic leather preparation method that is not only environmentally friendly but also has an antifouling function

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A preparation method of environment-friendly antifouling synthetic leather, comprising the following steps:

[0035] (1) wet bass preparation

[0036] a. 10 parts by weight of dimethylformamide and 2 parts by weight of color paste (commercially available) were mixed and stirred for 30 min, then filtered;

[0037] b. 40 parts by weight of dimethylformamide, 5 parts by weight of modified bentonite and 20 parts by weight of lignocellulose were mixed and stirred for 30 minutes, and then fully swelled for 20 minutes;

[0038] c. Add the mixture filtered in step a to the swollen mixture in step b, stir evenly, then add 50 parts by weight of polyurethane resin, stir for 30 minutes, and defoam for 20 minutes;

[0039] d. Mix the degassed mixture in step c at 110g / m 2 The amount of material applied is scraped on the base cloth, and then immersed in a dimethylformamide solution with a mass fraction of 15% to solidify for 8 minutes at a solidification temperature of 30°C, and th...

Embodiment 2

[0051] A preparation method of environment-friendly antifouling synthetic leather, comprising the following steps:

[0052] (1) wet bass preparation

[0053] a. 12 parts by weight of dimethylformamide and 4 parts by weight of color paste were mixed and stirred for 35 minutes, and then filtered;

[0054] b. 45 parts by weight of dimethylformamide, 10 parts by weight of modified bentonite and 25 parts by weight of lignocellulose were mixed and stirred for 35 minutes, and then fully swelled for 25 minutes;

[0055] c. Add the mixture filtered in step a to the swollen mixture in step b, stir evenly, then add 55 parts by weight of polyurethane resin, stir for 35 minutes, and defoam for 25 minutes;

[0056] d. Mix the degassed mixture in step c at 125g / m 2 The amount of material applied is scraped on the base cloth, and then immersed in a dimethylformamide solution with a mass fraction of 16% to solidify for 9 minutes at a solidification temperature of 35°C, and then washed with w...

Embodiment 3

[0068] A preparation method of environment-friendly antifouling synthetic leather, comprising the following steps:

[0069] (1) wet bass preparation

[0070] a. 15 parts by weight of dimethylformamide and 5 parts by weight of color paste were mixed and stirred for 40 minutes, and then filtered;

[0071] b. 50 parts by weight of dimethylformamide, 20 parts by weight of modified bentonite and 30 parts by weight of lignocellulose were mixed and stirred for 40 minutes, and then fully swelled for 30 minutes;

[0072] c. Add the mixture filtered in step a to the swollen mixture in step b, stir evenly, then add 60 parts by weight of polyurethane resin, stir for 40 minutes, and defoam for 20 to 30 minutes;

[0073] d. Mix the degassed mixture in step c at 125g / m 2 The amount of material applied is scraped on the base cloth, and then immersed in a dimethylformamide solution with a mass fraction of 17% to solidify for 10 minutes at a solidification temperature of 45°C, and then washed...

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PUM

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Abstract

The invention discloses a production method of environmentally friendly antifouling synthetic leather in order to solve the problems of residual toxic and harmful substances in present synthetic leather products, and harmfulness for environmental protection and the health of human bodies. The production method of the environmentally friendly antifouling synthetic leather comprises the steps of wet base production, dry dosing, dry surface lamination and antifouling treatment, bentonite is modified by benzyltrimethylammonium chloride, the obtained modified bentonite is used as a filler for producing a wet base, and the modified bentonite can effectively adsorb harmful substances in the synthetic leather products, so the synthetic leather produced through adopting the method is safe and environmentally-friendly. The surface of the synthetic leather produced in the invention is processed by an antifouling agent, and the surface of the processed synthetic leather has the characteristics of difficult dirt contamination and superior fouling resistance.

Description

technical field [0001] The invention relates to the field of synthetic leather, in particular to a preparation method of environment-friendly antifouling synthetic leather. Background technique [0002] Synthetic leather is a plastic product that simulates the composition and structure of natural leather and can be used as its substitute material. Usually, the impregnated non-woven fabric is used as the mesh layer, and the microporous polyurethane layer is used as the grain layer. Both the front and back are very similar to leather, and have a certain degree of air permeability, which is closer to natural leather than ordinary artificial leather. Synthetic leather occupies a very important position in human's daily life and is widely used in the production of luggage, clothing, footwear and car interior accessories. [0003] In the existing synthetic leather manufacturing, the polyurethane resin is diluted and added with wood powder or other filling materials, and undergoe...

Claims

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Application Information

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IPC IPC(8): D06N3/14C08L75/04C08L97/00C08K9/04C08K3/34D06M13/188D06M13/419D06M13/148D06M13/224
Inventor 田树松杨毅
Owner ZHEJIANG JINSHANG SYNTHETIC LEATHER
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