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Special polyurethane finishing agent for leather

A polyurethane and finishing agent technology, which is applied in the field of polyurethane finishing agents for leather, can solve the problems of poor antibacterial performance and poor water resistance, and achieve the effects of excellent antibacterial performance, good surface gloss and excellent hand feeling

Inactive Publication Date: 2018-06-22
TIANCHANG ZHENGMU ALUMINUM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Polyurethane leather finishing agent has the characteristics of non-toxic, non-polluting and safe, which has attracted widespread attention in the lea

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A special polyurethane finishing agent for leather proposed by the present invention, its raw materials include by weight: 100 parts of isocyanate-terminated polyurethane prepolymer, 5 parts of water-based acrylic resin, 5 parts of aminosilane coupling agent, 2 parts of nano-titanium dioxide, perfluorinated 6 parts of alkyl alcohol, 2 parts of N,N-dihydroxyethyl-3-amino-propionic acid methyl ester, 5 parts of triethylamine, 0.5 part of hydroxyl-terminated polydimethylsiloxane, 15 parts of collagen , 3 parts of oxidized sulfited fish oil, 5 parts of peanut oil, 40 parts of diluent, 4 parts of stearic acid, 0.8 part of antibacterial agent, 6 parts of attapulgite.

Embodiment 2

[0016] A special polyurethane finishing agent for leather proposed by the present invention, its raw materials include by weight: 50 parts of isocyanate-terminated polyurethane prepolymer, 20 parts of water-based acrylic resin, 2 parts of aminosilane coupling agent, 5 parts of nano-titanium dioxide, perfluorinated 3 parts of alkyl alcohol, 8 parts of N,N-dihydroxyethyl-3-amino-propionic acid methyl ester, 2 parts of triethylamine, 2.5 parts of hydroxyl-terminated polydimethylsiloxane, 5 parts of collagen , 6 parts of oxidized sulfited fish oil, 2 parts of peanut oil, 70 parts of diluent, 1 part of stearic acid, 2 parts of antibacterial agent, and 2 parts of attapulgite.

Embodiment 3

[0018] A special polyurethane finishing agent for leather proposed by the present invention, its raw materials include by weight: 65 parts of isocyanate-terminated polyurethane prepolymer, 17 parts of water-based acrylic resin, 2.6 parts of silane coupling agent KH-550, 4.5 parts of nano-titanium dioxide, 4 parts of perfluoroalkyl alcohol, 7 parts of N,N-dihydroxyethyl-3-amino-propionic acid methyl ester, 2.6 parts of triethylamine, 2.1 parts of hydroxyl-terminated polydimethylsiloxane, collagen 7 parts, 5.2 parts of oxidized sulfited fish oil, 2.5 parts of peanut oil, 65 parts of diluent, 1.8 parts of stearic acid, 1.7 parts of antibacterial agent, 3 parts of attapulgite, 0.2 parts of silicone defoamer, 0.5 parts of leveling agent share;

[0019] Wherein, the diluent is a mixture of isopropanol and acetone, and the volume ratio of isopropanol and acetone is 3:4;

[0020] The antibacterial agent is a mixture of hydroxyethyl cellulose, dodecylbenzyl trimethyl ammonium chloride...

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PUM

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Abstract

The invention discloses a special polyurethane finishing agent for leather. The polyurethane finishing agent comprises the following raw materials in parts by weight: 50 to 100 parts of isocyanate-terminated polyurethane prepolymer, 5 to 20 parts of waterborne acrylic resin, 2 to 5 parts of an amino silane coupling agent, 2 to 5 parts of nanometer titania, 3 to 6 parts of perfluoroalkyl alcohol, 2to 8 parts of N, N-dihydroxyethyl-3-amido-methyl propionate, 2 to 5 parts of triethylamine, 0.5 to 2.5 parts of hydroxy-terminated dimethyl silicone polymer, 5 to 15 parts of collagen, 3 to 6 parts of oxidized and sulfited fish oil, 2 to 5 parts of peanut oil, 40 to 70 parts of a diluent, 1 to 4 parts of stearic acid, 0.8 to 2 parts of an antibacterial agent, and 2 to 6 parts of attapulgite. Thespecial polyurethane finishing agent is stable in performance, has excellent mildew resistance, and is good in waterproof property.

Description

technical field [0001] The invention relates to the technical field of leather, in particular to a special polyurethane finishing agent for leather. Background technique [0002] Natural leather is favored by consumers for its fashionable appearance, excellent moisture absorption and breathability, and currently plays an important role in our daily life. However, the continuous intrusion of oil, food and beverage, and dyes in daily life has seriously affected its application. Waterproof, antifouling, and antibacterial properties have naturally become a major demand for high-end leather products. The special properties of leather products can be obtained by spraying the surface with a finishing agent. After finishing the leather with a finishing agent, a uniform film protective layer is formed on the leather surface, giving the leather excellent performance. Polyurethane leather finishing agents are non-toxic, non-polluting, and safe, and have attracted widespread attention ...

Claims

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Application Information

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IPC IPC(8): C09D175/04C09D133/00C09D5/14C09D7/62C09D7/63C09D7/65C08G18/61C08G18/10
Inventor 周良正
Owner TIANCHANG ZHENGMU ALUMINUM TECH