Special washing branding discoloration resin for synthetic leather and preparation method thereof

A technology of synthetic leather and branding, applied in textiles and papermaking, etc., can solve the problems of single color and surface pattern, insufficient burnt feeling of branded parts, difficult to use directly, etc., and achieve good discoloration effect, good visual effect, and clear branded parts Effect

Active Publication Date: 2013-07-24
ZHEJIANG SUNLIGHT MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005]2) The production process of ordinary wet branded synthetic leather determines that its color and surface pattern are relatively single, which cannot meet high aesthetic requirements
[0006]3) Ordinary wet branded synthetic leather contains a lot of wood powder and other fillers, resulting in insufficient burnt feeling on the branded part
However, wet-process synthetic leather is generally used for the middle layer of synthetic leather, and its strength is poor, so it is difficult to use directly

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Stir 30 parts of polyurethane resin, 28 parts of N,N-dimethylformamide and 30 parts of butyl acetate in the kettle evenly, then add 1 part of epoxy soybean oil and 2 parts of silicone hand feel Agent, 1 part of silica matting powder and 8 parts of micronized wax powder, stirred for 30 minutes to make it completely dispersed. The viscosity measured by sampling is 1200cps / 25°C, and the product is filtered and discharged.

[0032] Add 3% color paste to the prepared water-washed color-changing resin, apply it on the surface of dry-laid synthetic leather by roller coating, dry it at 130°C, knead it with water for 30 minutes, take it out and dry it. Then use a branding machine to brand the surface to obtain a branded color-changing synthetic leather with clear patterns.

Embodiment 2

[0034] Stir 35 parts of polyurethane resin, 40 parts of N,N-dimethylformamide and 12.5 parts of butyl acetate in the kettle evenly, then add 0.5 parts of epoxy fatty acid methyl ester and 1 part of silicone Hand feeling agent, 3 parts of silica matting powder and 8 parts of micronized wax powder, stirred for 30 minutes to make it completely dispersed. The viscosity measured by sampling is 2000cps / 25°C, and the product is discharged after filtering.

[0035] Add 3% color paste to the prepared water-washed color-changing resin, apply it on the surface of dry-laid synthetic leather by roller coating, dry it at 130°C, knead it with water for 30 minutes, take it out and dry it. Then use a branding machine to brand the surface to obtain a branded color-changing synthetic leather with clear patterns.

Embodiment 3

[0037] Stir 40 parts of polyurethane resin, 30 parts of N,N-dimethylformamide and 14.5 parts of butyl acetate in the kettle evenly, then add 1 part of epoxy fatty acid methyl ester and 0.5 parts of silicone Hand feeling agent, 2 parts of silica matting powder and 12 parts of micronized wax powder, stirred for 30 minutes to make it completely dispersed. The viscosity measured by sampling is 3000cps / 25°C, and the product is discharged after filtering.

[0038] Add 5% color paste to the prepared water-washed imprinting color-changing resin, and then paste it on the surface of wet-laid synthetic leather with release paper. After drying at 130°C, knead it with water for 30 minutes, take it out and dry it. Then use a branding machine to brand the surface to obtain a branded color-changing synthetic leather with clear patterns.

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PUM

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Abstract

The invention relates to a special washing branding discoloration resin for synthetic leather. The branding discoloration resin comprises the following components: polyurethane resin, silicon dioxide extinction powder, micronization wax powder, a plasticizing agent, an organosilicon feeling agent, butyl acetate and N, N-dimethylformamide. The method comprises the following steps: 1, adding the polyurethane resin, the N, N-dimethylformamide and the butyl acetate into a reactor, and mixing uniformly; 2, adding the plasticizing agent, the silicon dioxide extinction powder and the micronization wax powder while stirring, and stirring for 20-40 minutes so as to completely dispersing the plasticizing agent, the silicon dioxide extinction powder and the micronization wax powder; and 3, testing the viscosity of a product, filtering and discharging after qualification. The branding discoloration resin is good in physical property, good in wear resistance and scratch resistance and good in visual effect, and can be widely used in occasions such as shoes and bags with high performance requirements on the synthetic leather.

Description

technical field [0001] The invention relates to a preparation method of a special resin for synthetic leather, in particular to a resin capable of achieving the effect of branding and discoloration through washing with water and a preparation method thereof. technical background [0002] As a substitute for genuine leather, polyurethane synthetic leather has a lower cost and its performance is close to or surpasses that of similar genuine leather products. Therefore, it is widely used in various fields such as clothing, luggage, footwear and home furnishing. With the improvement of people's living standards and aesthetic concepts, the traditional single-color synthetic leather products can no longer meet people's needs. Improving the appearance and texture of synthetic leather through surface modification has become an indispensable means in the production process of synthetic leather. Brand discoloration means that the surface of synthetic leather is discolored by high-tem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/06C08L75/08C08K3/36C08K5/1515C08K5/11C08J9/26D06N3/14
Inventor 朱建琴郦向宇戴文琪金朝锋杨兆荣赵叶军
Owner ZHEJIANG SUNLIGHT MATERIAL TECH CO LTD
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