Latest News and Updates on Textile Auxiliaries and Dyes

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

Los colorantes reactivos son una clase de sustancias orgánicas de intensa coloración, utilizados principalmente para textiles en estampado y teñido, se adhieren a los sustratos por una reacción química que forma un enlace covalente entre la molécula de colorante y la molécula de la fibra. El coloran Read More

Vat dyeing process methodThe method of vat dye dyeing process, after vat dye leuco body and then into dyeing insoluble dye. First, it becomes soluble leuco sodium salt through reduction in lye, which is adsorbed by cellulose fiber, and then it is oxidized to return to the original insoluble dye. Gen Read More

1. Constant temperature rapid dyeing method refers to dyeing at a temperature above the glass transition temperature and below the boiling point, and holding it for 45-90 minutes. After most of the dye is absorbed, the temperature is raised to the boiling point to fix, and the fixation time Shorter, Read More

Dye characteristics: The reactivity of vinylsulfone-based reactive dyes is between dichloro-s-triazine and monochloro-s-triazine, and it is a medium-temperature reactive dye. It is characterized by acid and alkali resistance, so pre-alkali can be used during dyeing. Vinylsulfone-based dyes are brigh Read More

Cationic dyes are a kind of textile dyes, also known as basic dyes and basic dyes. Dissolved in water, it is in cationic state. Cationic dyes are soluble in water and ionize in aqueous solution to generate dyes with positively charged colored ions. The cation of the dye can combine with the acidic g Read More

A few days ago, BASF announced that it is entering the implementation phase of the restructuring of the global business services department announced in September 2020. BASF stated that most of the services provided by this department to the company will be transferred to service centers in March 20 Read More