Latest News and Updates on Textile Auxiliaries and Dyes

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

In the process of dry heat treatment, the color fastness of polyester fibers dyed with disperse dyes decreases and the color light changes. It is caused by the thermal migration of disperse dyes. The so-called thermal migration refers to a phenomenon in which part of the dye migrates from the inside Read More

Vat dye yarn dyeing methodVat dye yarn dyeing method, vat dye is a major category of cotton yarn dyeing of current colored fabrics. The dyed yarn is not only bright in color, but also has excellent fastness. Most of the light fastnesses are above level 6, and some varieties are as high as level 8. T Read More

According to the forecast of the well-known retail analysis and consulting company NPD Group, the demand for household products in the United States will remain strong in 2021. NPD Group Vice President Joe Derochowski said in a recent blog post: “The changes in consumer demand in 2020 will continue Read More

1. Reductive cleaning under alkaline conditions:Soaping agent + reducing agent (sodium sulfide or thiourea dioxide) + alkali (caustic soda or soda ash), but many domestic dyeing factories do not use soaping agent.Soaping agent: non-ionic surface active agent, which is conducive to dissolving, disper Read More

Varios congresistas se reunieron con Falabella y la Cámara Colombiana de la Confección en busca de política que ayuden al sector textil en medio de la pandemia por coronavirus.“No nos podemos permitir que la industria nacional se debilite o se muera, menos en esta pandemia que afecta tan gravemente Read More