Dyestuffs and Pigments

4-Aminobenzoic acid is one of the most important aromatic amino acids. It is an important part of essential substances for cell growth and division. It plays an irreplaceable role in the metabolism of life, and has a high content in yeast, liver, bran and malt. 4-Aminobenzoic acid can relieve anemia, viral anemia, stomatitis diarrhea and pregnancy anemia caused by red blood cell deficiency. 4-Aminobenzoic acid as the main component of high-efficiency nutrition compound vitamin B-100, can effectively improve the three major metabolism of human body, comprehensively fight fatigue and relieve pressure. 4-Aminobenzoic acid combined with penicillin or streptomycin can effectively improve the antibacterial effect. 4-Aminobenzoic acid is also an important fine chemical raw material. In medicine, it is a key intermediate for the synthesis of blood enriching agents folic acid, procoagulant and carboxyl benzamine. It is also used in the manufacture of drugs for rickets, rheumatism, arthritis and tuberculosis. In the cosmetics industry, it is an important intermediate of body sunscreen and hair growth agent; In organic chemical industry, it can be used to prepare various ester products, as resin modifier, and as special intermediate for synthesis of reactive dyes and azo dyes.

Solvent Red 207 is mainly used for coloring all kinds of thermoplastic, resin and polyester raw pulp. It is also used in the manufacture of fireworks. It has the advantages of high added value, color fastness, coloring rate, improvement and brightness.

Disperse Red 3B is the main dyestuff for polyester. It has bright color, good light fastness, good levelness and poor sublimation fastness. It is often combined with disperse yellow RGFL and disperse blue 2BLN to form three primary colors. It is suitable for high temperature and high pressure dyeing. It can be used for direct printing and transfer printing of polyester and nylon fabrics. The properties of diacetate fiber and triacetate fiber are similar to those of polyester fiber. The dyeing of nylon and acrylic fiber is bluer, the dyeing speed is slower, and the levelness and dyeing depth are medium.

This product is mainly used as dye intermediate.

Reactive brilliant blue KN-R is a new dye, which has bright color, excellent application performance, convenient use and strong applicability. Reactive brilliant blue KN-R can be used for cotton and viscose fiber dyeing, which has high affinity, excellent levelness and general fixation rate, and is suitable for various dyeing methods. When used for immersion and rolling dyeing, it can be combined with active golden yellow M-R and reactive red kn-5b to form three primary colors, and then color various light colors; Or with active golden M-G, active red m-8b composition of three primary colors, the color of the medium color. It is also used for direct printing of cotton and viscose fiber fabrics, such as the direct printing of rich fiber cloth and viscose silk fabric. It can also be used for dyeing vinylon fiber.