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Special waterproof coating decoration agent for leather

A finishing agent and leather technology, applied in the field of leather, can solve the problems of poor waterproof performance and single ingredients, and achieve the effect of improving dry and wet rub resistance and surface gloss, and improving water resistance and strength

Inactive Publication Date: 2018-07-10
TIANCHANG ZHENGMU ALUMINUM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing coating agent has a relatively single composition and poor waterproof performance, which limits its application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A special waterproof finishing agent for leather proposed by the present invention, its raw materials include by weight: 100 parts of polyurethane emulsion, 8 parts of fatliquoring agent, 0.3 part of surfactant, 2.8 parts of heptadecylfluorodecyltriethoxysilane, N -2 parts of (2-aminoethyl)-3-aminopropyltrimethoxysilane, 2.5 parts of hexamethyldisilazane, 50 parts of diluent, 9 parts of nano silicon dioxide, 1 part of graphene oxide, 1 part of soil removal;

[0017] Wherein, the fatliquor is formed by mixing sulfonate fatliquor, oxidized sulfited fish oil, oxidized sulfited rapeseed oil, and lanolin.

Embodiment 2

[0019] A special waterproof finishing agent for leather proposed by the present invention, its raw materials include by weight: 100 parts of polyurethane emulsion, 0.5 part of fatliquoring agent, 5 parts of surfactant, 0.7 part of heptadecylfluorodecyltriethoxysilane, N -5 parts of (2-aminoethyl)-3-aminopropyltrimethoxysilane, 0.3 parts of hexamethyldisilazane, 85 parts of diluent, 2 parts of nano silicon dioxide, 4 parts of graphene oxide, 3 parts of soil removal;

[0020] Wherein, the fatliquor is formed by mixing sulfonate fatliquor, oxidized sulfited fish oil, oxidized sulfited rapeseed oil, and lanolin.

Embodiment 3

[0022] A special waterproof finishing agent for leather proposed by the present invention, its raw materials include by weight: 100 parts of polyurethane emulsion, 7 parts of fatliquoring agent, 0.6 part of polyoxyethylene stearate, heptadecafluorodecyltriethoxysilane 2.5 parts, 2.3 parts of N-(2-aminoethyl)-3-aminopropyltrimethoxysilane, 2.1 parts of hexamethyldisilazane, 55 parts of diluent, 8 parts of nano-silica, graphene oxide 1.5 parts, 1.4 parts of montmorillonite;

[0023] Wherein, the fatliquoring agent is formed by mixing sulfonate fatliquor, oxidized sulfited fish oil, oxidized sulfited vegetable oil, and lanolin, and the sulfonate fatliquored agent, oxidized sulfited fish oil, oxidized sulfited The weight ratio of rapeseed oil and lanolin is 8:6:3:4;

[0024] The sulfonate fatliquor is prepared according to the following process: add peanut alcohol into the reaction device, heat up to 50°C and stir for 50 minutes, then add maleic anhydride, heat up to 80°C and rea...

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Abstract

The invention discloses a special waterproof coating decoration agent for leather, wherein the raw materials comprise, by weight, 100 parts of a polyurethane emulsion, 0.5-8 parts of a fatliquor, 0.3-5 parts of a surfactant, 0.7-2.8 parts of heptadecafluorodecyltriethoxysilane, 2-5 parts of N-(2-aminoethyl)-3-aminopropyltrimethoxysilane, 0.3-2.5 parts of hexamethyldisilazane, 50-85 parts of a diluent, 2-9 parts of nanometer silica, 1-4 parts of graphene oxide, and 1-3 parts of montmorillonite, wherein the fatliquor is formed by mixing a sulfonate fatliquor, oxidized sulfited fish oil, oxidizedsulfited vegetable oil and lanolin. According to the present invention, the special waterproof coating decoration agent has stable performance, can significantly improve the water resistance, the wet-rub resistance and the dry-rub resistance of leather products, and can further make leather products full and soft.

Description

technical field [0001] The invention relates to the technical field of leather, in particular to a special waterproof finishing agent for leather. Background technique [0002] With the improvement of people's living standards, leather products play an important role in our daily life. In recent years, consumers have higher and higher requirements for the performance of leather products. Improving the grade of leather and endowing leather with excellent waterproof, antifouling, antibacterial and other special functions play an important role in improving the application range of leather products. However, leather is tightly woven by collagen fibers, which contain a large amount of amino, Carboxyl, hydroxyl and other groups, these groups have a certain degree of hydrophilicity, resulting in poor hydrophobicity of leather. At the same time, a large amount of hydrophilic substances such as surfactants and salts are used in the leather processing process, which further deterior...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D7/61C09D7/63C09D7/65C14C11/00
CPCC08K2201/011C08L2205/025C08L2205/035C09D175/04C14C11/006C08L91/00C08K13/02C08K3/346C08K3/04C08K3/36C08K5/5419C08K5/544
Inventor 周良正
Owner TIANCHANG ZHENGMU ALUMINUM TECH
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