The so-called dye processing aid is added in the post-processing process of dye processing to help improve the performance of specific dye commodity dosage forms (such as dispersibility, thermal stability, dust resistance, anti-agglomeration, solubilization, etc.) or to improve the Materials that have certain properties (such as leveling, accelerating dyeing, deepening, etc.) and properties on fibers (such as color fixing, softness, etc.), enhance heat resistance, maintain or improve dispersion stability, prevent dye aggregation, and help Substance for improving the leveling property of dyeing.
Commercial processing is inseparable from additives, and it is impossible to optimize the processing formula without understanding the properties of processing additives. Proper use of additives can improve dye quality, reduce production costs, and increase the added value of dyes.
In recent years, hundreds of additives for dye processing have been developed, the largest amount of which is used, and the number of dispersants that play an important role in processing results is increasing year by year, and physical and chemical indicators and economic indicators are also different. For example, lignin dispersant can already produce multiple series varieties with different molecular weight and different degree of sulfonation. You can choose the most suitable variety according to your needs.
For the processing of non-water-soluble (dispersion, reduction) dyes, a large number of additives are needed to adjust the strength and other properties. There are many types of additives, and the properties shown in different dyes are not the same. And physical and chemical indicators determine his scope of use. Only by knowing the properties can it be used correctly, and studying the compatibility of the additives to make the additives play the best role in the formulation is one of the research contents of post-treatment technology.