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

Medium temperature reactive dyesMedium-temperature reactive dye exhaust dyeing basically adopts conventional dyeing process. In fact, the dyeing properties of commonly used medium-temperature reactive dyes are not exactly the same, and there are three types.First typeThe performance characteristics Read More

Overflow dyeing machines have a maximum nominal capacity, and this nominal capacity is not suitable for all fabrics. Therefore, during production, it is necessary to determine the actual capacity of the overflow dyeing machine according to different conditions such as the thickness and width of the fabric. For fabrics of the same width, the lighter and thinner they are, the smaller their capacity is. This is because if light and thin fabrics are fed according to the nominal capacity, the length of the fabric will inevitably be too long, and the cycle during dyeing will be long, which will easily cause the fabric to knot due to disorder in the dyeing room, causing fabric spots. Read More

What is the fastness of disperse dyes?The dyeing fastness of disperse dyes is mainly the fastness to sunlight, sublimation, friction and washing. Particularly important among them are the light fastness in application performance and the sublimation fastness in post-processing. Others, such as wash 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