Special antibacterial and waterproof coating agent for leather

Abstract

The invention discloses a special antibacterial and waterproof coating agent for leather. The special antibacterial and waterproof coating agent for leather comprises the following raw materials in parts by weight: 50-85 parts of a waterborne polyurethane emulsion, 2-10 parts of a fatting agent, 2-3.8 parts of a surfactant, 0.5-2 parts of tridecafluorooctyltriethoxysilane, 2-5 parts of salicylanilide, 0.1-1.5 parts of diphenyldiethoxysilane, 35-65 parts of diluent, 2-5 parts of nanometer titanium dioxide, 0.5-3 parts of montmorillonite, 2-5 parts of hydroxyl silicone oil, 2-5 parts of glycerol, 0.5-2 parts of dodecafluoroheptyl methacrylate, 1-4 parts of stearic acid, 2-5 parts of hydroxyethyl cellulose, 2-6 parts of 2,3-epoxypropyltrimethylammonium chloride and 0.1-0.9 part of 8-hydroxyquinoline. The special antibacterial and waterproof coating agent for leather, provided by the invention, has stable performance and excellent antibacterial performance and waterproofness, has long-lasting antibacterial and anti-mildew properties and good waterproofness when being applied to leather products, and makes the produced leather products more soft and full.

Description

technical field [0001] The invention relates to the technical field of leather, in particular to a special antibacterial and waterproof finishing agent for leather. Background technique [0002] Leather is denatured and non-perishable animal skin obtained through physical and chemical processing such as depilation and tanning. The leather industry covers the main industries such as tanning, shoemaking, leather clothing, leather goods, fur and its products, as well as supporting industries such as leather chemicals, leather hardware, leather machinery, and accessories. At present, the most used leather products are daily necessities such as leather shoes, leather clothes, and leather sofas. However, leather is tightly woven by collagen fibers, which contain a large number of amino groups, carboxyl groups, hydroxyl groups, etc. These groups have a certain degree of hydrophilicity, resulting in poor hydrophobicity of the leather. In the process, a large amount of hydrophilic ...

AI Technical Summary

Problems solved by technology

However, leather is tightly woven by collagen fibers, which contain a large number of amino groups, carboxyl groups, hydroxyl groups, etc. These groups have a certain degree of hydrophilicity, resulting in poor hydrophobicity of the leather. In the process, a large amount of hydrophilic substances such as surfactants and salts are used, which further deteriorates the hydrophobicity of the leather products. When the leather products are stained with water, it is easy to cause the leather products to become hard or deformed. At the same time, people are wearing leather products. During the process of making leather products, sweat, etc. can easily enter the interior of the leather, leading to the growth of fungi and moldy leather products, which limits the application of leather products