Dyestuffs and Pigments

Lead chromium green is a major coloring pigment of the paint industry, and the vast majority of green lacquers are formulated with this pigment. In addition, it is used in paints and plastics. Its application range is very similar to that of lead chrome yellow. Because there is chromic yellow in the composition, take care of its lead containing toxicity when applied. Lead chrome green contains iron blue and contains the oxidant lead chromate, so when dust encounters Mars with the possibility of autoignition, it is not prudent to dry, pulverize. The burnt lead chrome green completely loses the characteristics of a green pigment, transforming into a dark brownish yellow substance. In addition, while fabricating nitro paint, the rolling process did not directly roll with lead chromium green, whereas the process that was rolled after finishing with lead chromium green to prevent combustion while rolling the sheets.

Fluxioxonil, trade name maxim, etc. are bactericides developed and produced by Novartis. Its mechanism is to inhibit the protein activating enzyme PK – Ⅲ (kinase – Ⅲ) with signal function in the process of osmotic induction transmission, resulting in the increase of the concentration of nonphosphorylated regulatory protein, Thus, the secretion of osmotic sensitive cell division agent activated protease is abnormal, which eventually leads to the death of bacteria. Because of its unique action mechanism, it has no cross resistance with existing fungicides. It is a kind of pyrrole fungicides with great development prospect.

It is used in medicine, metallurgy, electronics, textile and other industries, as well as pigments and glass colorants used as catalysts, polishing agents, paints and ceramics. Special magnetic iron oxide can be used to manufacture audio tapes and telecommunications equipment.

Titanium dioxide is an important inorganic chemical pigment, which is mainly composed of titanium dioxide. It has important applications in coatings, ink, paper, plastic, rubber, chemical fiber, ceramics and other industries. Titanium dioxide is not only used as colorant in rubber industry, but also has the function of reinforcing, anti-aging and filling. Titanium dioxide is added into white and color rubber products. Under sunlight, it is resistant to sunlight, cracking, discoloration, high elongation and acid-base resistance. Titanium dioxide for rubber, mainly used in automobile tires and rubber shoes, rubber floor, gloves, sports equipment, etc., is mainly anatase. However, a certain amount of rutile products are often added in the production of automobile tires to enhance the ability of anti ozone and anti ultraviolet. Titanium dioxide is widely used in cosmetics. Because titanium dioxide is nontoxic and far superior to lead white, almost all kinds of perfumes use titanium dioxide to replace lead white and zinc white. Only 5% - 8% titanium dioxide can be added to the fragrance powder to get permanent white, which makes the fragrance more greasy and has adhesion, absorption and covering power. In gouache and cold cream, titanium dioxide can reduce the feeling of greasy and transparent. Titanium dioxide can also be used in other spices, sunscreen, soap tablets, white soap and toothpaste.

Direct fast blue FFRL can be used for dyeing cotton, viscose fiber, silk and their blended fabrics, but generally not for printing. Dyed cotton and viscose fibers are bright blue, with good levelness, medium migration and poor dye uptake. Good light fastness and poor washing fastness. It is mostly used for fabrics with less washing times. It can dye polyester viscose blended fabrics in the same bath with disperse dyes at high temperature, and the color light is slightly red.