Nappa leather coating composition and coating technology thereof

A composition and finishing technology, applied in leather surface treatment, small raw hide/big raw hide/leather/fur treatment, small raw hide/large raw hide/leather skin/fur chemical treatment, etc., can solve the problem of reducing the quality and grade of Napa leather , Unnatural texture of Napa leather, different skin distinctions, etc.

Active Publication Date: 2016-08-17
河南中牛实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the finishing agents developed for leather are all general-purpose, and there is no distinction between different leathers. It is difficult to process leather into high-grade nappa leather with general-purpose leather finishing, and the body of the leather will change during the finishing process. , resulting in unnatural texture of Napa leather, thus reducing the quality and grade of Napa leather

Method used

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  • Nappa leather coating composition and coating technology thereof

Examples

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Effect test

Embodiment 1

[0104] A kind of Nappa leather finishing composition, it comprises scraping and mending slurry, back cover slurry, base slurry, isolation slurry, surface slurry and bright slurry, wherein,

[0105] The scraping and repairing paste is composed of the following components in parts by weight: 350 parts of repairing paste, 15 parts of filler, and 15 parts of black pigment paste;

[0106] The back cover slurry is composed of the following components in parts by weight: 350 parts of water, 25 parts of cationic black paste, 40 parts of penetrating agent, 15 parts of cationic oil, 40 parts of cationic wax, 15 parts of nonionic hand feeling agent, and 70 parts of cationic casein , 50 parts of cationic polyurethane;

[0107] The primer is composed of the following components in parts by weight: 250 parts of water, 100 parts of anionic black paste, 15 parts of nonionic hand feeling agent, 60 parts of off-board wax, 40 parts of casein, 150 parts of composite resin, and 100 parts of acryli...

Embodiment 2

[0139] A kind of Nappa leather finishing composition, it comprises scraping and mending slurry, back cover slurry, base slurry, isolation slurry, surface slurry and bright slurry, wherein,

[0140] The scraping and repairing paste is composed of the following components in parts by weight: 400 parts of repairing paste, 20 parts of filler, and 20 parts of black pigment paste;

[0141] The back cover slurry is composed of the following components in parts by weight: 400 parts of water, 30 parts of cationic black paste, 50 parts of penetrating agent, 20 parts of cationic oil, 50 parts of cationic wax, 20 parts of nonionic hand feeling agent, and 80 parts of cationic casein , 60 parts of cationic polyurethane;

[0142] The primer is composed of the following components in parts by weight: 300 parts of water, 120 parts of anionic black paste, 20 parts of nonionic hand feeling agent, 70 parts of off-board wax, 50 parts of casein, 200 parts of composite resin, and 150 parts of acryli...

Embodiment 3

[0168] A kind of Nappa leather finishing composition, it comprises scraping and mending slurry, back cover slurry, base slurry, isolation slurry, surface slurry and bright slurry, wherein,

[0169] The scraping and repairing paste is composed of the following components in parts by weight: 450 parts of repairing paste, 25 parts of filler, and 25 parts of black pigment paste;

[0170] The back cover slurry is composed of the following components in parts by weight: 450 parts of water, 35 parts of cationic black paste, 60 parts of penetrating agent, 25 parts of cationic oil, 60 parts of cationic wax, 25 parts of nonionic hand feeling agent, and 90 parts of cationic casein , 70 parts of cationic polyurethane;

[0171] The primer is composed of the following components in parts by weight: 350 parts of water, 150 parts of anionic black paste, 25 parts of nonionic hand feeling agent, 90 parts of off-board wax, 60 parts of casein, 250 parts of composite resin, and 200 parts of acryli...

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Abstract

The invention discloses a nappa leather coating composition and a coating technology thereof. The nappa leather coating composition comprises scraping-touchup slurry, base sealing slurry, base slurry, isolation slurry, surface slurry and bright slurry; and the coating technology comprises the steps of crust milling, toggling, mending of blemishes, surface grinding, dust removal, base sealing, first ironing, base slurry brushing, pressing of coarse needle lines, base slurry spraying, spraying of an isolation layer, pressing of nappa lines, second milling, first vibration staking, second ironing, surface slurry spraying, spraying of a bright layer and third ironing. The nappa leather coating composition disclosed by the invention is used for processing common leather into high-grade nappa leather so that the nappa leather has natural lines and comfortable handfeel, and the leather grade is promoted.

Description

technical field [0001] The invention relates to the technical field of leather paint and leather treatment, in particular to a napa leather finishing composition and a finishing process thereof. Background technique [0002] Leather finishing agent is a general term for a class of leather auxiliary agents used to protect and beautify leather on the surface of leather. It is prepared from film-forming substances, coloring materials, solvents and additives in a certain proportion, and the film-forming substance is leather finishing agent. Foundation. Leather finishing agents also play a very important role in the leather manufacturing industry, which can increase the appearance of leather, prolong the service life of leather, significantly improve the quality and grade of leather products, and increase commercial value. With the change of consumers' concept and the raising of environmental protection issues, people put forward higher requirements for finishing agents; therefo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D189/00C09D175/04C09D201/00C09D133/00C09D101/18C09D191/00C09D191/06C09D7/12C14C11/00
CPCC08L2205/02C08L2205/035C09D7/40C09D7/63C09D101/18C09D133/00C09D189/00C09D201/00C14C11/003C08L75/04C08L91/00C08L91/06C08L33/00C08L89/00
Inventor 倪建荣
Owner 河南中牛实业有限公司
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