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Production method of bio-based water-based suede locomotive clothing leather

A production method and bio-based technology, applied in the field of synthetic leather, can solve the problems of toxic substances emission, non-environmental protection, etc., and achieve the effect of reducing material cost, reducing cost and improving hand feeling

Pending Publication Date: 2021-10-22
浙江嘉柯新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of producing suede leather by this method, since the glue contains the volatile toxic solvent methyl ethyl ketone and the curing agent NCO, a large amount of toxic substances are discharged during the high-temperature heat preservation aging process, and there is a disadvantage of not being environmentally friendly.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A kind of production method of bio-based water-based suede motorcycle suit leather comprises the following steps:

[0017] Step 1, pulping, 100 parts of bio-based water-based polyurethane (comprising 50% water and 50% water-based polyurethane), 1 part of polyester thickener, 0.2 part of silicon wetting agent, crosslinking agent (aziridine ) 2 parts and 10 parts of color paste to make a slurry with a viscosity of about 5000. The bio-based waterborne polyurethane is BIO-PDO(TM) based on corn starch produced by DuPont of the United States.

[0018] Step 2. Slurry coating. The slurry is coated on the base fabric by using a high-solid pattern printing roller. The base fabric is high-weight double-sided suede, and 60-65g of slurry is coated on each meter of the base fabric. The high-weight double-sided suede includes a short-hair side and a long-hair side, and the slurry is printed on the long-hair side of the high-weight double-sided suede, and the thickness of the slurry i...

Embodiment 2

[0022] A kind of production method of bio-based water-based suede motorcycle suit leather comprises the following steps:

[0023] Step 1. Pulp making. Mix 100 parts of bio-based water-based polyurethane, 2 parts of polyester thickener, 0.3 parts of silicon wetting agent, 3 parts of crosslinking agent, and 10 parts of color paste to make a slurry with a viscosity of about 5000. The bio-based waterborne polyurethane is cornstarch-based BIO-PDO(TM) produced by DuPont of the United States, which has multiple functional groups.

[0024] Step 2. Slurry application. The slurry is coated on the base fabric with a high-solid pattern printing roller. The base fabric is high-weight double-sided suede, and 65-70g of slurry is coated on each meter of the base fabric. The high-weight double-faced suede has a short-pile side and a long-pile side, and the paste is printed on the short-pile side of the high-weight double-faced suede.

[0025] Step 3, drying, the base cloth is coated with the ...

Embodiment 3

[0027] A kind of production method of bio-based water-based suede motorcycle suit leather comprises the following steps:

[0028] Step 1. Pulp making. Mix 100 parts of bio-based water-based polyurethane, 2 parts of polyester thickener, 0.3 parts of silicon wetting agent, 3 parts of crosslinking agent, and 10 parts of color paste to make a slurry with a viscosity of about 5000. The bio-based waterborne polyurethane is cornstarch-based BIO-PDO(TM) produced by DuPont of the United States, which has multiple functional groups.

[0029] Step 2. Slurry application. The slurry is coated on the base fabric with a high-solid pattern printing roller. The base fabric is high-weight double-sided suede, and 65-70g of slurry is coated on each meter of the base fabric. The high-weight double-sided suede has a short-haired side and a long-haired side, and the paste is printed on the short-haired side of the high-weight double-sided suede at the same time, and the thickness of the paste on the...

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Abstract

The invention discloses a production method of bio-based water-based suede locomotive clothing leather. The method comprises the following steps of 1, preparing slurry: preparing the slurry with the viscosity of 4000-8000 from 100 parts of bio-based water-based polyurethane, 1-3 parts of a polyester thickener, 0.1-0.3 part of a silicon wetting agent, 2-3 parts of a cross-linking agent and 8-12 parts of water-based color paste; 2, applying the slurry: applying the slurry to base cloth by a high-solid pattern printing roller, wherein the base cloth is a high-decrement double-sided suede fabric, and 60-80 g of the slurry is applied to each meter of the base cloth; and 3, carrying out drying: drying the base cloth coated with the slurry by using a drying oven to form the finished product. The leather produced by the production method of the bio-based water-based suede locomotive clothing leather has the advantages of no toxic solvent volatilization in the production and processing process, better environmental protection, good hand feeling, no need of a lining for locomotive clothing, shortening of the production flow of the locomotive clothing, reduction of the material cost, and good wind resistance and thermal insulation performance.

Description

technical field [0001] The invention belongs to the technical field of synthetic leather, and in particular relates to a production method of bio-based water-based suede leather. Background technique [0002] The traditional production method of suede leather is: coating ink on OPP, PPT and other release films to form an ink layer on the release film, and then use a printing roller to coat a layer of glue that needs to be heat-preserved and matured on the ink layer. , to form a glue layer, then compound the suede base fabric on the glue layer, and finally tear off the release film after heat preservation to obtain suede leather. In the process of producing suede leather by this method, since the glue contains the volatile toxic solvent methyl ethyl ketone and the curing agent NCO, a large amount of toxic substances are discharged during the high-temperature heat preservation aging process, which has the disadvantage of not being environmentally friendly. Contents of the in...

Claims

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Application Information

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IPC IPC(8): D06N3/14D06N3/00
CPCD06N3/14D06N3/0088D06N3/0077
Inventor 郑嗣铣
Owner 浙江嘉柯新材料科技有限公司
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