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Method for producing high-physical-property non-woven fabric environment-friendly synthetic leather

A production method and technology of non-woven fabrics, applied in the processing of textile materials, devices for coating liquid on the surface, textiles and papermaking, etc., can solve the health impact of workshop workers and consumers, environmental pollution and other problems, and achieve superior performance , The effect of low transformation cost

Active Publication Date: 2016-03-23
ANAN CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the production process, waste water and waste gas containing DMF (dimethylformamide) and organic solvents will be generated, which will not only pollute the environment, but also affect the health of workshop workers and consumers

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] The production method of a kind of high physical property non-woven environment-friendly synthetic leather of the present invention comprises the following steps:

[0021] Step 1: Impregnation of non-woven fabrics with PVA: Prepare a PVA aqueous solution with a mass fraction of 4% in the reaction kettle, stir until the PVA is completely dissolved, and the solution is colorless and transparent; put the prepared PVA aqueous solution into the impregnation tank of the PVA impregnation production line, Impregnating PET and PA mixed non-woven fabrics; PET and PA mixed non-woven fabrics are impregnated and single-roll extruded; enter a 30m oven with a temperature of 120°C, pass 2 rounds of high-temperature ironing rollers, and pass 4 rounds of normal temperature cooling Roller, winding; during the process of impregnating non-woven fabrics with PVA, too fast speed will cause the non-woven fabrics to not penetrate completely, and too slow will affect the efficiency. The best spee...

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PUM

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Abstract

The invention relates to the technical field of non-woven fabric environment-friendly synthetic leather, in particular to a method for producing high-physical-property non-woven fabric environment-friendly synthetic leather. The method comprises the steps of a preparation procedure before production, wherein base cloth selection, base cloth matching, gram weight and thickness selection, base cloth treatment and resin selection are included; a production process procedure, wherein non-woven fabric impregnation in PVA, AB double-component resin coating, Base washing, Base buffing and release paper coating and other procedures are included. No DMF waste water or waste gas is generated in the production process, a finished product does not contain harmful matter, the synthetic leather can be used as raw materials of furniture, shoes, caps and garments, and can be in direct contact with skin. Compared with an existing water-based synthetic leather product developed in the industry, the high-physical-property non-woven fabric environment-friendly synthetic leather has the advantages on the aspects of cost, performance and production processes.

Description

technical field [0001] The invention relates to the technical field of non-woven environment-friendly synthetic leather, in particular to a production method of non-woven environment-friendly synthetic leather with high physical properties. Background technique [0002] With the EU's restrictions on DMF content will be tightened year by year until the use of DMF is banned. The European Union is the main export base of my country's synthetic leather. Strictly speaking, few enterprises in my country are able to produce ecological synthetic leather that meets EU standards. Faced with this severe situation, my country has successively formulated and tightened corresponding ecological synthetic leather standards. In the latest "Safety Requirements for Polyurethane Synthetic Leather for Clothing" standard, the DMF content in PU synthetic leather is strictly regulated. This standard has two levels, the secondary standard is limited to below 100PPM, and the primary standard is lim...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06N3/00D06N3/14D06B3/10D06B23/00B05C1/06B05C11/10
CPCB05C1/06B05C11/10D06B3/10D06B23/00D06N3/0011D06N3/14D06N2201/02D06N2203/068D06N2205/023D06N2211/10D06N2211/106D06N2211/14
Inventor 林天送朱巨波
Owner ANAN CHINA