Leather Auxiliary Agents

Sodium propionate is an acid preservative, and its antibacterial effect is affected by pH. The mic was 0.01% at pH5.0 and 0.5% at pH6.5. In acidic medium, it has strong inhibitory effect on all kinds of mold, aerobic Bacillus or Gram-negative bacilli. It is effective to prevent the production of aflatoxin, but almost ineffective to yeast. As a preservative, sodium propionate is mainly used in food, feed and cosmetics. Sodium propionate is used as a masking agent in leather making to improve the alkali resistance and tanning uniformity of leather.

Dispersant MF is mainly used as dispersant and filler for vat dyes and disperse dyes. It is mainly used as processing agent and dispersant for the grinding of disperse dyes and vat dyes. Its performance is better than dispersant n. Dispersant MF has the advantages of good grinding effect, good dispersion, heat resistance and stable dispersion at high temperature. It is more resistant to high temperature and stable than dispersant n. Dispersant MF can make the dye bright, increase the color power and color evenly. Dispersant MF can also be compounded with various dispersants to meet the commercialization requirements of various disperse dyes and vat dyes; It can also be used as early strength water reducing agent for concrete; It can be used as dispersant for grinding vat dyes and dispersant for vat dye suspension dyeing; As well as latex stabilizer in rubber industry and tanning aid in leather industry. Dispersant MF is mainly used as dispersant and filler for vat dyes and disperse dyes. It is mainly used as processing agent and dispersant for the grinding of disperse dyes and vat dyes. Its performance is better than dispersant n. Dispersant MF has the advantages of good grinding effect, good dispersion, heat resistance and stable dispersion at high temperature. It is more resistant to high temperature and stable than dispersant n. Dispersant MF can make the dye bright, increase the color power and color evenly. Dispersant MF can also be compounded with various dispersants to meet the commercialization requirements of various disperse dyes and vat dyes; It can also be used as early strength water reducing agent for concrete; It can be used as dispersant for grinding vat dyes and dispersant for vat dye suspension dyeing; As well as latex stabilizer in rubber industry and tanning aid in leather industry.

Fluorescent brightener is a substance that can absorb ultraviolet rays from sunlight or other light sources and emit blue to purple fluorescence, so that materials can produce whitening and luster effects. It is also called optical whitening agent because it uses the optical complementary color function to make the dark matter appear white and bright after fluorescent whitening.

It has excellent heat resistance, light resistance and oxidation resistance. It is the raw material for the synthesis of polycarbonate, epoxy resin, polysulfone and polyether inkstone resin. Bisphenol s can also be used to synthesize dye fixing agent and leather tanning agent. It can also be used as an intermediate of electric ferry additives, dyes, pharmaceuticals, pesticides, additives and so on.

It is mainly used as extractant in pharmaceutical industry and stabilizer in printing ink. It can also be used as a metal surface treatment agent, cosmetics, perfume manufacturing, electroplating and so on. It's a kind of solvent of synthetic leather of polyurethane and amino acid, resin-vegetable oil, mineral oil, pharmaceuticals, paint and dye, and a stabilizer of 1,1,1-trichloroethane. It's also used for plasticizer and antioxidant.