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1. Overview of acid dyes1. History of acid dye:In 1868, the earliest acid -dye triophane acidic dye appeared, which has a strong dyeing ability but poor in accuracy. Read More
Acid Dyes are a class of water-soluble dyes with acidic groups in their structure, which are dyed in acidic media. Most of the acid dyes contain sulfonic acid sodium salt, which is soluble in water, bright in color and complete in chromatogram. Mainly used for dyeing wool, silk and nylon, but also f Read More
Acid dyes are only suitable for positively charged fibers, such as polyamide fibers in an acid bath, but cotton fibers can also be dyed with acid dyes after cationization.When dyeing with two dyes, the structure of the dye and the structure of the cationic cotton dominate.Better wash fastness can be Read More
With the use of small liquor ratio and continuous dyeing process, the degree of automation of printing and dyeing has been continuously improved, the emergence of automatic fillers and pulp mixing, and the introduction of liquid dyes require the preparation of high-concentration and high-stability d Read More
Los tintes ácidos, tintes directos y tintes reactivos son todos tintes solubles en agua, y la producción en 2001 fue de 30.000 toneladas, 20.000 toneladas y 45.000 toneladas respectivamente. Read More
Acid dyes, direct dyes and reactive dyes are all water-soluble dyes, and the output in 2001 was 30,000 tons, 20,000 tons and 45,000 tons respectively. Read More
1 What is the network degree of silkThe product of network processing is called network wire, also known as interlaced wire, which uses compressed air flow to spray, impact and collide the tow, so that the individual filaments in the tow are irregularly intertwined, forming a good cohesion. Performa Read More
By analyzing the factors of the pH value of nylon cloth in production, such as bath ratio, acid used in the bath and acid dosage, etc., suitable production conditions are formulated to overcome the shortcomings of sourness, yellowing in storage and unstable pH value of nylon finished cloth. After ad Read More
Strong, good abrasion resistance, ranking first among all fibers. Its abrasion resistance is 10 times that of cotton fiber, 10 times that of dry viscose fiber, and 140 times that of wet fiber. Therefore, its durability is excellent.Nylon fabric has excellent elasticity and elastic recovery, but it i Read More
The dyeing of nylon fiber mainly uses acid dyes and some disperse dyes. Disperse dyes are mainly used in the case of relatively light colors, and the most used are acid dyes. Acid dyes are divided into level dyeing acid dyes (strong acid acid dyes); semi-level dyeing acid dyes (weak acid acid dyes) 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
