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reactive dyes manufacturer

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  • Dyeing Methods with Commonly Used Dyes

    2024-03-20

    Direct dye dyeingDirect dyes can be used for dyeing various cotton and viscose products. When dyeing, first wet the fabric with water, add it to the dye solution, heat it to 95°C, add neutral salt to promote dyeing, and dye it for 60 minutes. Wash with water after dyeing, and if necessary, add color Read More
  • Causes of Color Spots Caused by Reactive Dye Properties(2)

    2024-03-08

    Medium temperature reactive dyesMedium-temperature reactive dye exhaust dyeing basically adopts conventional dyeing process. In fact, the dyeing properties of commonly used medium-temperature reactive dyes are not exactly the same, and there are three types.First typeThe performance characteristics Read More
  • No-washing dyeing technology solves the problem of water pollution

    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
  • Dyeing of cotton knitted fabric with reactive dyes

    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
  • The difference between dyes and pigments

    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
  • Performance defects of medium temperature reactive dyes

    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
  • What should I do if color spots and stains appear in reactive dyeing?

    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
  • The structure of reactive dye molecules can affect wet rubbing fastness

    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
  • Level dyeing problem of reactive dyes

    2021-02-10

    Level dyeing problem of reactive dyesWhen reactive dyes are dyed, special bath softeners have been used to prevent rope creases or to promote dye penetration.Since reactive dyes are water-soluble, anionic levelling agents are generally not used. However, some reactive dyes have low solubility in alk Read More
  • The dyeing principle and process of reactive dyes

    2021-01-06

    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

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