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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
As the Swiss Better Cotton Development Association (BCI) quietly withdrew its statement about "banning Xinjiang cotton", the storm seems to have ended with "the boycotters slumped out of the field"; but in fact, behind this controversy is not just industry organizations. , The sudden behavior of a f Read More
1. Choose reactive dyes with less floating color after dyeingFloating color is the main reason for the unqualified wet rubbing fastness of dark and dense fabric.The floating dyes of reactive dyes include dyes that have been adsorbed on the fibers without reacting with the fibers, partially hydrolyze Read More
Direct dye was developed after Bottiger discovered Congo Red in 1884. Before this, cotton fibers were dyed with indigo and other natural dyes, which was troublesome. At that time, synthetic dyes were just beginning to be developed, and cotton fibers could not be dyed directly. The cotton fibers must Read More
Analysis of Original DyesThe original dye analysis mentioned here refers to the testing and analysis of the physical and chemical properties of the original dye for the needs of dye processing. After years of research, it has been found that post-treatment is by no means a simple physical process. B Read More
It is reported that in January, most printing and dyeing and dye companies were still booming in production and sales. The overall dye inventory of printing and dyeing plants was low, and there was a certain replenishment demand. The inventory level of dye companies was low in recent years, and some Read More
1. The influence of solvent and mediumThe absorption wavelength of the dye solution changes with the polarity of the solvent. When the dye is dissolved in a polar solvent, the polarity of the dye increases as the polarity of the solvent increases, so that the excitation energy is reduced, the absorp Read More
