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Manufacturing method of environment-friendly leather

A production method and leather technology are applied in the field of synthetic leather to achieve the effects of protecting the living environment, simple process, high social and economic benefits

Inactive Publication Date: 2010-10-27
SHENZHEN XINGHUI SHENGYE TECH
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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 provide a method for making environmentally friendly leather with environmentally friendly paper as a base material, so as to overcome the environmental protection problems in the traditional production of PU leather. The manufacturing method is simple and easy to implement

Method used

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Embodiment Construction

[0024] The manufacturing method of the environment-friendly leather of the present invention adopts the environment-friendly paper as the base material to compound the polyurethane coating, so as to obtain the non-toxic, recyclable and easily decomposed environment-friendly leather.

[0025] It can be produced through the following steps:

[0026] 1), material selection, according to the requirements of the leather to be produced, choose environmentally friendly paper of corresponding size and thickness; environmentally friendly paper is the synthetic paper described in China Patent No. 01136182.4, which can be purchased in the market.

[0027] 2), coating, which is to coat one or more layers of polyurethane coating on the selected environmental protection paper, so that the polyurethane coating is compounded on the surface of the environmental protection paper to form a surface layer; The composite part of the material is also coated with an adhesive, such as a reactive adhes...

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Abstract

The invention relates to the technical field of synthetic leather, in particular to a manufacturing method of a leather material. The environment-friendly leather is prepared through compounding a polyurethane coating based on environment-friendly paper. The polyurethane coating is compounded on the environment-friendly paper through coating or release paper transferring, thereby obtaining the environment-friendly leather. The manufacturing method has the advantages of simple process and easy implementation. Moreover, no gas harmful to the human body is generated during the manufacturing process. Therefore, the manufacturing method achieves effects of energy conservation and emission reduction, has high social benefits and economic benefits, and helps promote the development of social environmental activities and the protection of the human living environment. The environment-friendly leather produced according to the method has the advantages of no toxicity, recyclability and easy decomposition, and can be oxidized and decomposed within a short period in the sunlight, ultraviolet rays and other natural environments with the sun and rain, and then return to the earth without generating any toxic gas or polluting any water source.

Description

Technical field: [0001] The invention relates to the technical field of synthetic leather, in particular to a method for making leather materials. Background technique: [0002] At present, most of the synthetic leathers on the market are made of organic solvent-based PU resin as the base layer and surface layer, that is, to obtain PU leather; this type of PU resin is passed through toluene, xylene, acetone, butanone, ethyl acetate, Dimethyl formamide etc. are used as solvents by solvent polymerization, and these organic solvents are all harmful substances. During the process of foaming and synthesizing PU leather, harmful gases will be produced, which will affect the health of the body, and the harmful substances will pass through the water. And air emissions, serious environmental pollution, poor environmental protection. In addition, as we all know, the current PU leather is difficult to degrade, and it is discarded in nature for a long time, forming toxic waste, which p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06N3/12B32B27/06B32B27/40
Inventor 周兴葵
Owner SHENZHEN XINGHUI SHENGYE TECH
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