Sulphur dyes are a class of sulfur-containing dyes with complex molecular structures. Generally, it is made by heating some organic compounds such as aromatic amines and aminophenols with sulfur or...

A substance's selective absorption of different light will show various colors, and the color of the substance is the complementary color of the light wave it absorbs. The same is true for dyes...

For cotton fabrics, which are relatively easy to dye, the main process conditions are reasonable and the dyes are selected correctly. Generally, there is no technical problem in dyeing dark colors....

Be careful! New exhibition period of 2020 China International dyestuff Exhibition: June 26-28! ...

On November 21, the environmental impact report of Gansu Yumen Emperor Chemical Co., Ltd.'s annual output of 18,000 tons of dyes and dye intermediate production lines passed the technical ...

Sulfur dye is a sulfur-containing dye, which has sulfur bonds in its molecular structure. It is based on aromatic amines or phenolic compounds as raw materials. It is obtained by melting with sodiu...

                  At the beginning of the founding of the People's Republic of China, China's dye industry has a certain scale, with an ann...