The application of surfactants on leather will be further strengthened

2022-12-05 17:19:12

At present, there are not many types of high-grade fatliquors. Although there are waterproof, antistatic, antifouling, soft and plump fatliquors, there is a lack of good mercerized fatliquors. It is urgent to develop various fatliquors with special properties. . A key development direction in the future is synthetic fatliquor based on petrochemical products, sulfonated oil, sulfonated fatty alcohols, synthetic lipids, and products with special properties such as waterproof, light resistance, electrolyte resistance, and washing resistance. The combined fatliquor contains carboxyl groups, which can be better combined with the tanned material, and can overcome the shortcomings of other fatliquors, such as alkanolamides, which will migrate to the surface after a long period of storage, which will cause the leather to harden Combined fatliquor is the most valued.

The tanning industry pollutes the environment a lot. When developing new surfactants for tanning, environmental protection requirements must be considered. In recent years, research and development have been carried out at home and abroad on amphoteric surfactants with phosphate groups as acidic groups. Phosphate ester leather fatliquor contains phosphate groups in its molecules, which can combine with chromium salts and other multivalent metal salts, and at the same time can Combining with leather fiber, endows leather with permanent fatliquoring effect, good permeability, and the leather has good hydrophobicity and mercerizing performance after fatliquoring. What needs to be pointed out in particular is that it has good biodegradability, which can reduce the pollution of the fatliquoring waste liquid to the environment and protect the ecological environment.

With the development of the leather industry and the surfactant industry, the application of surfactants on leather will be further strengthened. As a new growth point of the surfactant industry, surfactants used in the leather industry will be further developed and researched. be valued.

The wide application of surfactants in tanning has accelerated the technological progress and industry development of the leather industry, and has played an important role in improving the process and improving product quality. Currently, the surfactants used in the leather industry are mainly anionic and nonionic surfactants, while cationic and amphoteric surfactants are relatively less used.

With the development of the economy and the improvement of people's living standards, the demand for new types of leather is increasing, and higher requirements are put forward for leather auxiliaries. It is urgent to develop special detergents, softening agents, and waterproof finishing agents for leather products. Wait. Fluorosurfactants have high surface area, high heat resistance stability, high chemical inertness, are both hydrophobic and oil-repellent, and are non-toxic or slightly toxic. Silicon-containing surfactants contain both organic groups and silicon elements, high temperature resistance, weather aging resistance, non-toxic, non-corrosive, physiologically inert, and high surface activity. Therefore, it is urgent to develop special leather auxiliaries that contain fluorine and silicon and can endow leather with special properties.