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Preparation method of sneaker polyurethane synthetic leather with remarkable three-dimensional effect

A technology of three-dimensional effect and sports shoes, which is applied in the field of synthetic leather, can solve the problems of unsatisfactory embossing effect, unsatisfactory embossing effect, time-consuming and labor-consuming process, etc., to shorten the production cycle and cost, and product embossing The effect of significant effect and cost increase

Pending Publication Date: 2021-01-08
ANHUI ANLI MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the three-dimensional effect of sports shoe leather is mainly finished by dry veneer before post-processing embossing or punching by downstream customers and air pressing one by one. The embossing effect of the former often fails to meet expectations, while the latter steps are cumbersome and time-consuming. Labor-intensive and unstable process
Chinese patent application number "201611140003.0" patent name is "a water-based polyurethane decorative leather and its manufacturing method", the method provided includes wet process bass production, dry direct coating, high temperature embossing and other steps, and the products produced by the preparation method exist The steps are cumbersome, and because the bass production and direct coating need to be completely dried in an oven, the resin has been cured and glued completely, and the leather surface has a certain temperature and pressure resistance, so the embossing effect is not ideal

Method used

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  • Preparation method of sneaker polyurethane synthetic leather with remarkable three-dimensional effect
  • Preparation method of sneaker polyurethane synthetic leather with remarkable three-dimensional effect
  • Preparation method of sneaker polyurethane synthetic leather with remarkable three-dimensional effect

Examples

Experimental program
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Effect test

Embodiment 1

[0024] A method for preparing polyurethane synthetic leather for sports shoes with remarkable three-dimensional effect, comprising the steps of:

[0025] 1. Select 1.05mm polyester needle-punched non-woven fabric as the base fabric, iron the base fabric and impregnate it with water-based polyurethane slurry, weigh 80 parts of water-based polyurethane slurry, 2 parts of cross-linking agent, and 0.4 parts of water-based thickener , uniformly stirred to obtain water-based water-based polyurethane slurry, and the liquid-carrying rate of the base cloth after impregnating with the slurry was 8%;

[0026] 2. The impregnated base fabric is pretreated with 5% calcium nitrate solution after extrusion, and the pretreatment material consumption is 70g / m;

[0027] 3. The pretreated base fabric is ironed at 130°C, calendered at 120°C and 2.2MPa, and then dried in the primary oven. The temperature of the primary oven is 90±5°C, 95±5°C, and 100±5°C. 15±5Hz, 20±5Hz, 20±5Hz, the coating speed ...

Embodiment 2

[0031] A method for preparing polyurethane synthetic leather for sports shoes with remarkable three-dimensional effect, comprising the steps of:

[0032] 1. Select 0.95mm polyester needle-punched non-woven fabric as the base fabric, iron the base fabric and impregnate it with water-based polyurethane slurry, weigh 110 parts of water-based polyurethane slurry, 4 parts of cross-linking agent, and 0.8 parts of water-based thickener , uniformly stirred to obtain water-based water-based polyurethane slurry, and the liquid-carrying rate of the base cloth after impregnating with the slurry was 10%;

[0033] 2. The impregnated base fabric is pretreated with 7% calcium nitrate solution after extrusion, and the pretreatment material consumption is 90g / m;

[0034] 3. The pretreated base fabric is ironed at 130°C, calendered at 120°C and 3.2MPa, and then dried in the primary oven. The temperature of the primary oven is 90±5°C, 95±5°C, and 100±5°C. 15±5Hz, 20±5Hz, 20±5Hz, coating speed co...

Embodiment 3

[0038] A method for preparing polyurethane synthetic leather for sports shoes with remarkable three-dimensional effect, comprising the steps of:

[0039] 1. Select 0.95mm polyester needle-punched non-woven fabric as the base fabric, iron the base fabric and impregnate it with water-based polyurethane slurry, weigh 80 parts of water-based polyurethane slurry, 3 parts of cross-linking agent, and 0.6 parts of water-based thickener , uniformly stirred to obtain water-based water-based polyurethane slurry, and the liquid-carrying rate of the base cloth after impregnating with the slurry was 20%;

[0040] 2. The impregnated base fabric is pretreated with 10% calcium nitrate solution after extrusion, and the pretreatment material consumption is 90g / m;

[0041] 3. The pretreated base fabric is ironed at 130°C, calendered at 120°C and 2.2MPa, and then dried in the primary oven. The temperature of the primary oven is 90±5°C, 95±5°C, and 100±5°C. 15±5Hz, 20±5Hz, 20±5Hz, the coating spee...

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Abstract

The invention discloses a preparation method of sneaker polyurethane synthetic leather with a remarkable three-dimensional effect. The preparation method sequentially comprises the following steps of1, impregnating base cloth with waterborne polyurethane slurry; 2, pretreating the impregnated base cloth with a calcium nitrate solution; 3, coating the surface of the base cloth with waterborne polyurethane foaming slurry after calendaring; and 4, when the slurry is dried to form a film on the surface and is not completely dried, directly transferring the base cloth to an embossing roller for embossing treatment by being connected with a guide roller, and conducting curing after the slurry is dried to be completely dried. According to the preparation method, the waterborne polyurethane whichis relatively low in molecular weight and microscopically uses spherical particles to form the film through accumulation is selected as the foaming slurry, a waterborne foaming layer is subjected toaftertreatment and low-temperature embossing, the strong concave-convex stereoscopic impression is achieved, and the product can be directly applied to sneaker uppers.

Description

technical field [0001] The invention belongs to the technical field of synthetic leather, and in particular relates to polyurethane synthetic leather for sports shoes with remarkable three-dimensional effects and a preparation method thereof. Background technique [0002] At present, synthetic leather has been applied in various fields in people's life, and there are various varieties. Sports shoe leather is an important branch of the synthetic leather industry, which has the advantages of high peeling, abrasion resistance, and good weather resistance. At present, the three-dimensional effect of sports shoe leather is mainly finished by dry veneer before post-processing embossing or punching by downstream customers and air pressing one by one. The embossing effect of the former often fails to meet expectations, while the latter steps are cumbersome and time-consuming. Labor-intensive and unstable process. Chinese patent application number "201611140003.0" patent name is "a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06N3/14D06N3/00
CPCD06N3/145D06N3/0043D06N3/0077D06N2211/28
Inventor 沈宏武邢高瞻钟元成赵伟栋杜东旭徐斌汪飞刘兵刘永福胡东卫
Owner ANHUI ANLI MATERIAL TECH