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What are reactive dyes and their advantages and disadvantagesReactive dyes are a new type of water-soluble dyes that appeared in the 1950s. Reactive dye molecules contain reactive groups that can react with hydroxyl groups in cellulose and amino groups in protein fibers, and form covalent bonds with Read More
How to improve the color fastness of reactive dyesReactive dyes dye cellulose fibers to form chemical bonds with the fibers in the form of covalent bonds. Therefore, theoretically, the covalent bond between the dye and the fiber can give the dyed fabric excellent dye fastness. But in fact, its dyed Read More
Dyeing of cotton knitted fabric with reactive dyes1. The characteristics of reactive dyes1. Reactive dyes are soluble in water and contain active genes in the molecular structure. Under certain conditions, they can covalently bond with the hydroxyl groups on cellulose fibers.2. Reactive dyes have br Read More
Performance defects of medium temperature reactive dyesThere are varying degrees of "uneven dyeing" in the process of dip dyeing with moderate temperature reactive dyes. The main performance is that it is easy to produce color stains or uneven color, and poor color fastness. This often results in re Read More
The dyeing principle and process of reactive dyesThe dyeing principle and process of reactive dyes. The molecule contains chemically active groups that can react with cotton, wool and other fibers in an aqueous solution to form a co-bonded dye. Has high washing fastness. Reactive dyes are composed o Read More