Latest News and Updates on Textile Auxiliaries and Dyes

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

The dyeing auxiliary is specially used for washing and dying during the production process. These auxiliaries are formulated for textile products in the forms of cationic, non-ionic, surfactants and amphoteric. Our offered assortment of auxiliaries is comprised of pre-treatment chemicals, dyeing & p Read More

pHFor active dyeing, when the pH value is 7 ~ 9, the color difference between the product is normal, indicating that the pH range has little effect on the product color difference, and the presence of a small amount of alkali will not change or destroy the active dye molecules.When the pH value is 8 Read More

HardnessIt is generally believed that the hardness below 50 ppm has no impact, and 20ppm is already a good water.The water quality of the tube yarn is not the same, but the copper and iron ion content in the water should be paid attention.Usually active dyeing is better below 50ppm. The key is the m Read More

Acid dyes refer to a dye that contain acid groups in dye molecules that can be combined with amino groups in protein fiber molecules with ion bonds and applicable under acidic, weak acids or neutral conditions.Its structure is mainly nitrogen and 为, and a few are aromatum methane structures. Dyes an Read More

According to the perspective of modern dyeing theory, the reason why dyes can be dyed in dyeing fiber have a certain degree of fastness on the fiber fabric, because the dye molecules and fiber molecules exist in various gravity, the principles and principles of dyes and various types of dyes The dye Read More

There are many factors that affect the dye dyeing process, mainly including: 1. Dye propertiesThe dye structure and molecular size and shape determine the solubility, diffusionability of dyes, and the height of dyes and fibers. Second, the nature and concentration of the aidThere are many categories Read More

As a kind of spandex elastic fiber, a polymeal polymethyl ester composed of a flexible chain segment and a rigid chain segment. It was successfully studied by Bayer in Germany in 1937. In 1959, it was produced by DuPont. Because it has many advantages and good quality, it is recognized by the peers, Read More

1. Unqualified color plasticityThe color fastness includes sun exposure, soap washing fastness, sweat staining fastness, friction fastness, sublimation fastness, ironing fastness, etc. These fastness is The dyeing process and external conditions are closely related. Therefore, whether the color fast Read More

Polyester fiber with decentralized dyes dyed, during the dry heat treatment process, the phenomenon of decreased color targeting and color -light mutation. It is caused by the heat migration of decentralized dyes.The so -called heat migration refers to a phenomenon of migrating from the inside of th Read More

Before the cold rolling pile, the treatment should be in production:① Use a multi -rolling rolling method to ensure that the liquid penetration is evenly consistent. Generally, two grooves are used, and the front grooves are rolled with three rollers, and the rear grooves are used with two rollers.② Read More

There are many reasons for the color difference between samples, and the main reasons are the following aspects.① Be strict and accurate when playing samples. Sample samples are the key to directly affecting the large -scale production of the workshop. We must fully understand its importance and pay Read More