2022-04-29

When the medium temperature reactive turquoise blue is dip-dyed, the reason why it is easy to produce color spots and stains is because the reactive turquoise blue has the defects of salt resistance and poor alkali dissolution stability. The medium-temperature active turquoise blue has good salt-dis Read More

2022-04-22

The theory holds that the selective absorption of different light by a substance will present various colors, and the color of the substance is the complementary color of the light wave it absorbs. The same is true of dyes. The color of dyes is also the complementary color of the color of the light Read More

2022-04-15

Direct dyes refer to dyes that can be directly dissolved in water, have high directness to cellulose fibers, and do not need to use relevant chemical methods to color fibers and other materials. The principle of direct dyesDirect dyes have water-soluble groups such as sulfonic acid group (-SOH) or c Read More

2022-04-15

According to the latest information, affected by the continuous raging epidemic, all parts of East China have recently upgraded prevention and control measures, announcing the temporary closure of expressway exits and service areas.Either "can't make an appointment with the driver", or "have an appo Read More

2022-04-08

Acid dyes, direct dyes and reactive dyes are all water-soluble dyes, and the output in 2001 was 30,000 tons, 20,000 tons and 45,000 tons respectively. However, for a long time, my country's dye enterprises have paid more attention to the development and research of new structural dyes, while the res Read More

2022-04-01

The recent overseas situation is not optimistic. BASF declared force majeure, Mitsui Chemicals closed its factories, and the supply of various chemicals plummeted.BASF: The 400,000-ton/year MDI unit at the Geismar plant in North America suffered from an unexpected equipment failure that affected the Read More