Latest News and Updates on Textile Auxiliaries and Dyes

What should I do if color spots and stains appear in reactive dyeing?Reactive dyes have a very good solubility in water. Reactive dyes mainly rely on the sulfonic acid groups on the dye molecules to dissolve in water. For meso-temperature reactive dyes containing vinylsulfone groups, in addition to Read More

Una de las mejores clasificaciones de colorantes para las fibras de celulosa ha sido llamada como colorantes directos, ya que son capaces de teñir directamente el algodón sin ayuda de un mordiente. Read More

El ácido colorante es una mezcla de productos químicos formulado para añadir color al concreto ya curado por medio de una reacción química con elementos del concreto.Produce efectos de los únicos y permanentes, ideal para pisos interiores, muros, rocas artificiales y cualquier superficie de concreto. Read More

Detailed introduction of basic dyesBasic dyes, basic dye(s), also known as basic dyes. Dyes that can dissociate to form cationic pigments in aqueous solutions are classified as cationic dyes. Since basic dyes have poor color fastness to light and color to washing after dyeing fibers, they are now ra Read More

Sulfur dyes are dyes that must be dissolved in alkali sulfide. They are mainly used for dyeing cotton fibers, but also for cotton/dimensional blended fabrics. The cost is low, and the dyed products are generally washable and light-resistant, but the color is not bright enough. Commonly used varietie Read More

Acid dye refers to the acid group contained in the dye molecule, also known as anionic dye, which can combine with the amino group in the protein fiber molecule by ionic bond, and is applicable under acidic, weak acid or neutral conditions. Mainly are azo and anthraquinone structures, and a few are Read More

The structure of reactive dye molecules can affect wet rubbing fastnessl. Water solubility of dyes　　The more water-soluble groups contained on the reactive dye molecule, the more favorable it is for the dissolution and uptake of the dye during the dyeing process, and of course the washing of floatin Read More

1. Various synthetic fibers have different physical and chemical properties, so the requirements for dyes are also different. Generally speaking, the polarity of the dye, the size and shape of the molecular structure must be compatible with the polarity and physical structure of the fiber. The basic Read More

What are the characteristics of reactive dyes?What we often call reactive dyes is also called reactive dyes. It is a type of dyes that react with fibers during dyeing. Reactive dyes are a new type of dyes, including two main components: the parent dye and the reactive group. , The group that can rea Read More

1. BubbleFoam is the most common problem of high temperature and high pressure jet overflow dyeing. In the high-temperature and high-pressure jet overflow dyeing machine, the occurrence of foam is the result of high-energy turbulence caused by high-speed operation of the fabric and liquid circulatio Read More

1) Such as wax spots, pulp spots, etc., water droplets, hard water and sand texture defects;2) The blank is not fully saturated before dyeing, causing white spots and florets after dyeing;3) There are calcium spots and alkali spots on the cotton fabric;4) Calcium hypochlorite is used in the bleachin Read More

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