Environment-friendly space leather and preparation method and application thereof

A space leather, environment-friendly technology, applied in the field of leather, can solve the problem that the tear strength of space leather needs to be further improved

Pending Publication Date: 2021-05-07
SHANGHAI HUIDE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the tear strength of this inventio...

Method used

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  • Environment-friendly space leather and preparation method and application thereof
  • Environment-friendly space leather and preparation method and application thereof
  • Environment-friendly space leather and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0082] In this embodiment, an environment-friendly space leather is provided. The environment-friendly space leather comprises a water-based polyurethane resin surface layer, a solvent-free polyurethane resin foaming layer and a water-based polyurethane resin impregnated layer from top to bottom.

[0083] The water-based polyurethane resin surface layer is obtained by coating the water-based polyurethane resin surface layer compounding liquid on the DE-7 type release paper, and the water-based polyurethane resin surface layer compounding liquid comprises the following components in weight percentage:

[0084]

[0085] The raw materials for the preparation of the solvent-free polyurethane resin foam layer include the following components by weight percentage:

[0086]

[0087] The water-based polyurethane resin impregnation layer is obtained by immersing the base cloth in the water-based polyurethane resin impregnation solution, and the water-based polyurethane resin impre...

Embodiment 2

[0099] In this embodiment, an environment-friendly space leather is provided. The environment-friendly space leather comprises a water-based polyurethane resin surface layer, a solvent-free polyurethane resin foaming layer and a water-based polyurethane resin impregnated layer from top to bottom.

[0100] The water-based polyurethane resin surface layer is obtained by coating the water-based polyurethane resin surface layer compounding liquid on the DE-7 type release paper, and the water-based polyurethane resin surface layer compounding liquid comprises the following components in weight percentage:

[0101]

[0102] The raw materials for the preparation of the solvent-free polyurethane resin foam layer include the following components by weight percentage:

[0103] Solvent-free polyurethane resin A (HDPM-9003A) 58%;

[0104] Solvent-free polyurethane resin B (HDPM-9003B) 40%;

[0105] Catalyst (HDPM-9003C) 2%;

[0106] The water-based polyurethane resin impregnation lay...

Embodiment 3

[0118] In this embodiment, an environment-friendly space leather is provided. The environment-friendly space leather comprises a water-based polyurethane resin surface layer, a solvent-free polyurethane resin foaming layer and a water-based polyurethane resin impregnated layer from top to bottom.

[0119] The water-based polyurethane resin surface layer is obtained by coating the water-based polyurethane resin surface layer compounding liquid on the R-8 type release paper, and the water-based polyurethane resin surface layer compounding liquid includes the following components in weight percentage:

[0120]

[0121] The raw materials for the preparation of the solvent-free polyurethane resin foam layer include the following components by weight percentage:

[0122]

[0123] The water-based polyurethane resin impregnation layer is obtained by immersing the base cloth in the water-based polyurethane resin impregnation solution, and the water-based polyurethane resin impregn...

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Abstract

The invention provides environment-friendly space leather and a preparation method and application thereof. The environment-friendly space leather sequentially comprises a waterborne polyurethane resin surface layer, a solvent-free polyurethane resin foaming layer and a waterborne polyurethane resin impregnation layer from top to bottom. The preparation method comprises the following steps that solvent-free polyurethane resin foaming layer slurry is coated on the waterborne polyurethane resin surface layer, drying is carried out to be half-dry, then the waterborne polyurethane resin impregnation layer is laminated, and drying is carried out to obtain the environment-friendly space leather. The environment-friendly space leather prepared by combining the waterborne polyurethane resin and the solvent-free polyurethane resin has high tear strength and high peel strength, is high in genuine leather feeling, full in hand feeling, fine in crease, good in folding fastness, good in wear resistance and good in hydrolysis resistance, and can be used for manufacturing high-end and environment-friendly sports shoe products.

Description

technical field [0001] The invention belongs to the technical field of leather and relates to an environment-friendly space leather and its preparation method and application, in particular to a high-tear, high-stripping environment-friendly space leather and its preparation method and application. Background technique [0002] The application of polyurethane materials in synthetic leather is mainly reflected in clothing, bags, shoes, furniture, automobiles and other fields. Environmental protection regulations and export quality standards have been promulgated one after another, and the development of water-based synthetic leather and solvent-free synthetic leather has advanced by leaps and bounds in the field of synthetic leather, bringing new opportunities for the transformation and upgrading of the synthetic leather industry. [0003] In the field of shoe leather, a large amount of organic solvents (such as dimethylformamide, butanone, toluene, ethyl acetate, etc.) are u...

Claims

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Application Information

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IPC IPC(8): D06N3/14D06N3/00
CPCD06N3/145D06N3/0097D06N3/0088D06N3/0086D06N3/0043D06N3/0011D06N3/0077D06N2211/106D06N2209/1685
Inventor 钱洪祥钱建中邹佳娜宋蒋龄赵立朋秦永
Owner SHANGHAI HUIDE TECH CO LTD
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