Latest News and Updates on Textile Auxiliaries and Dyes

1. Direct dyes Structural properties: Direct dyes are a kind of water-soluble anionic dyes. Most of the dye molecules contain sulfonic acid groups, and some have carboxyl groups. The dye molecules and cellulose molecules are combined by van der Waals forces and hydrogen bonds. Dyeing objects and met Read More

According to a Bloomberg report, although the soaring freight rates have brought huge profits to container shipping companies such as Maersk Group and COSCO Shipping Holdings, importers are also facing higher costs that are more difficult to digest. Some companies have raised retail prices, intensif Read More

10 mistakes often made with reactive dyes!1. Why is it required to use a small amount of cold water to adjust the slurry and the temperature of the compound should not be too high?(1) Use a small amount of cold water to adjust the slurry first. The purpose is to make the dye easy to fully wet out. I Read More

What is Polyurethane (PU) and its application? Polyurethane (PU), whose full name is polyurethane, is a polymer compound. It was produced in 1937 by Otto Bayer and others. Polyurethane has two categories: polyester type and polyether type. They can be made into polyurethane plastic (mainly foam), po Read More

What is Defoamer and its application? Defoamer is an additive to eliminate foam. In the production and application process of coatings, textiles, medicine, fermentation, papermaking, water treatment and petrochemical industries, a large amount of foam will be produced, which will affect the quality Read More

En un colorante reactivo, un cromóforo (un átomo o grupo cuya presencia es responsable del color de un compuesto) contiene un sustituyente que reacciona con el sustrato. Los colorantes reactivos tienen buenas propiedades de solidez, debido a la unión que se produce durante el teñido. Los colorantes reactivos son los más utilizados en el teñido de celulosa como el algodón o el lino, pero también lana es susceptible de teñido con colorantes reactivos. En este informe se estudia el mercado Colorantes reactivos. Read More

Dyeing process of yarn-dyed fabricThe foam dyeing process of fabrics, yellow, pink, orange, red...etc. The world is full of colors. As far as the textile industry is concerned, the importance of colors has increased a lot. In the world of textiles and clothing, color is one of the factors that attra Read More

El proceso de la preparación del teñido de fibras de algodón son Descrude, Blanqueo, Mercerizado, y Pasos Finales. Read More

Thermal migration is a redistribution phenomenon of disperse dyes in two-phase solvents. Therefore, all additives that can dissolve disperse dyes can produce thermal migration.The reason for the thermal migration phenomenon is that the auxiliary agent in the outer layer of the fiber dissolves the dy Read More

Reactive dyes generally have poor chlorine fastness, which mainly depends on the molecular structure of the color body. There are sulfonic or carboxylic acid groups at the ortho position of the diazo group of the dye, or there are sulfonates at the ortho or para position of the hydroxyl group of the Read More

Does too high temperature affect the thermal transfer ink?What is the relationship between ink and thermal transfer? The principle of thermal transfer is to stamp the pattern by heating and pressing, which is a new type of printing method. The thermal transfer ink can print the pattern on special pa Read More

Also called enzyme washing, enzyme is a kind of cellulase, which exists in natural organisms and is a natural and healthy beneficial enzyme. It can degrade the fiber structure under a certain pH value and temperature, so that the cloth surface can be faded more gently, and a lasting soft effect can Read More