Environmental friendly dyes should include the following ten aspects
(1) It does not contain azo dyes which are explicitly stipulated by the German government, the European Community and eco tex Standard 100, which will release 22 carcinogenic aromatic amines un…
2020-08-24What are the characteristics of reactive dyes?
Reactive dyes, also known as reactive dyes. It is a kind of dyes that react with fibers in dyeing. This kind of dye molecules contain groups that can react with fibers chemically. During dyeing,…
2020-08-24Selection of dyeing methods with vat dyes
According to the properties of vat dyes, the assistant dyeing method was selected1、 Dyes with high aggregation tendencyIt needs to be dissolved in the dye solution with high concentration of Na…
2020-08-24Performance index and determination method of reactive dyes
1、 SolubilityHigh quality reactive dyes should have good water solubility. The solubility and concentration of the dye solution are related to the bath ratio, the amount of electrolyte added, dy…
2020-08-24What are the methods of vat dyeing
Vat dyes can be used for dyeing cotton, polyester cotton and vinylon cotton blended fabrics. According to the different dyeing forms of dyes, it can be divided into two types: cryptochrome dyeing …
2020-08-24
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