2021-07-07

No-washing dyeing technology solves the problem of water pollutionOn May 7, 2020, Suzhou Shiming Technology Co., Ltd. announced that it has developed a new type of non-washing environmentally friendly high-fastness nano-disperse dye paste, which can reduce dyeing without changing the existing dyeing Read More

2021-06-25

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

2021-06-14

The difference between dyes and pigmentsWe can admire all kinds of object colors every year. Some of these colors are naturally formed, and some are given by people, which are very beautiful. Artificial colors are basically done with dyes and pigments. Speaking of dyes and pigments, we are not famil Read More

2021-05-14

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

2021-02-20

What should I do if color spots and stains appear in reactive dyeing?Reactive dyes have a very good solubility in water. Reactive dyes mainly rely on the sulfonic acid groups on the dye molecules to dissolve in water. For meso-temperature reactive dyes containing vinylsulfone groups, in addition to Read More

2021-02-15

The structure of reactive dye molecules can affect wet rubbing fastnessl. Water solubility of dyes　　The more water-soluble groups contained on the reactive dye molecule, the more favorable it is for the dissolution and uptake of the dye during the dyeing process, and of course the washing of floatin Read More