Freezing-tolerant solubilizing type leather degreasing agent and preparation method thereof

Abstract

The invention relates to the field of leather care, in particular to a freezing-tolerant solubilizing type leather degreasing agent. The freezing-tolerant solubilizing type leather degreasing agent is prepared from, by mass, 1%-25% of anionic surfactant, 3%-80% of non-ionic surfactant, 0.5%-8% of electrolyte and 10%-85% of water. A preparation method comprises the steps that the anionic surfactant, the non-ionic surfactant and the water are stirred to be uniform at 40 DEG C to 60 DEG C, the electrolyte is added at the same stirring speed and temperature, all the materials are mixed to be uniform and cooled to 30 DEG C, and then the product is obtained. According to the degreasing agent, fatty acid methyl ester ethoxylate is adopted as the main raw material and supplemented by the anionic surfactant for enhancing the synergetic effect, the product has a high capacity for solubilizing grease and is excellent in penetrating performance, high in degreasing rate and good in raw material biodegradability, and the freezing-tolerant solubilizing type leather degreasing agent is still a transparent flowing liquid at -10 DEG C and can serve as a specialized leather degreasing agent.

Description

technical field [0001] The invention relates to the field of leather care, in particular to a frost-resistant solubilizing leather degreasing agent and a preparation method thereof. Background technique [0002] In the tanning industry, there will be a certain amount of fat in the skin of the raw material. If it is not degreased, it will hinder the penetration of the tanning process materials into the skin, and the fatty acid generated by the hydrolysis of the oil will react with the metal ion to form a water-insoluble Metal soap salts are not conducive to dyeing treatment, so the degreasing process generally runs through the wet operation stage of the entire tanning process. At present, the method commonly used in the industry is the emulsification degreasing method, and its active ingredients are mainly surfactants. Cationic surfactants have low emulsifying ability, and will combine with skin collagen under high pH conditions to lose the effect of emulsifying oil. , so it...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to solve the defects that the existing leather degreasing agent has a general degreasing effect, low content of non-ionic surfactant in the components, and easy to precipitate at low temperature, and provide a kind of oil that has a strong ability to solubilize oil and is still transparent at ~10°C Freeze-resistant and solubilizing special leather degreasing agent and preparation method thereof