Good quality China Manufacturer Suppy CAS: 482-89-3 Indigo Blue 94 Strength Dyes Vat Dyestuff Powder Price

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Indigo is a vat dye with a history of more than three thousand years. During the Warring States Period, Xun Kuang’s famous sentence “green, out of blue is better than blue” originated from the blue dyeing technology at that time. “Blue” here refers to cyan, and “blue” refers to the blue grass from which indigo is made. Before the Qin and Han dynasties, the application of indigo was quite common, dark blue powder, insoluble in water.

Mainly used for dyeing cotton yarn, cotton cloth, wool or silk. Pure products are used to make food dyes, or processed into organic pigments.

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