Latest News and Updates on Textile Auxiliaries and Dyes

What are the characteristics of reactive dyes?What we often call reactive dyes is also called reactive dyes. It is a type of dyes that react with fibers during dyeing. Reactive dyes are a new type of dyes, including two main components: the parent dye and the reactive group. , The group that can rea Read More

1. BubbleFoam is the most common problem of high temperature and high pressure jet overflow dyeing. In the high-temperature and high-pressure jet overflow dyeing machine, the occurrence of foam is the result of high-energy turbulence caused by high-speed operation of the fabric and liquid circulatio Read More

The National Textile and Apparel Council (NCTC) of India recently called on Prime Minister Modi to abolish anti-dumping duties on viscose staple fiber (VSF) and solve the supply and price issues of VSF yarn to prevent the loss of work related to the entire VSF textile value chain.The leaders of the Read More

There are repellents on the fabric, causing semi-repellent, or dripping water to dilute the dye solution during the dyeing process, and the fabric is stained with fleece;1) The fabric is impervious to scouring, and the dyed fabric contains dye-repellent substances;2) When the rough fabric is dyed, t Read More

1) Such as wax spots, pulp spots, etc., water droplets, hard water and sand texture defects;2) The blank is not fully saturated before dyeing, causing white spots and florets after dyeing;3) There are calcium spots and alkali spots on the cotton fabric;4) Calcium hypochlorite is used in the bleachin Read More

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 poor water solubility of disperse dyes is almost entirely dependent on the dispersant that coats them to form hydrophilic dye colloidal particles before dispersing the dispersant in water. However, during the dyeing process, due to the shear force of the dyeing solution and the high temperature Read More

The physical properties of nylon (1) Nylon has good elasticity. This is mainly because its molecular structure has a large amount of —CH2—, which is easy to bend, and the molecules in its amorphous region tend to be entangled randomly, so it has excellent stretch and resilience, good flexibility and Read More

Acetate fiber, referred to as CA. Acetate fiber is divided into diacetate fiber and triacetate fiber, which is a kind of man-made fiber. Using cellulose as a raw material, it is converted into a chemical fiber made of cellulose acetate through a chemical process. The function of acetate fiber1. Alka Read More

Sublimation fastness: refers to the migration and vaporization of dye molecules inside the fabric when heated during high-temperature processing or storage of colored fabrics. Dye molecules will migrate from the fabric to the surface of the fabric when heated, which will reduce the color fastness of Read More

The solution degree of reactive dyes is related to alkaline agentsWhen the alkali agent is added, the β-ethylsulfone sulfate of the reactive dye will undergo an elimination reaction to form its real vinyl sulfone, which is very soluble in genes. Since the elimination reaction requires very few alkal Read More

For reactive dyeing, when the pH value is 7-9, the color difference of the product is normal, indicating that the pH range has little effect on the color difference of the product, and the presence of a small amount of alkali will not change or destroy the chromogenic group of the reactive dye molec Read More