Disperse yellow dye formula

Abstract

The invention relates to a disperse dye formula, particularly a disperse yellow dye formula. The disperse yellow dye is prepared by mixing the following components in percentage by mass: 60-70% of dyeing monomer A with the chemical formula disclosed in the specification, 10-15% of dyeing monomer B with the chemical formula disclosed in the specification, and 20-25% of dyeing monomer C with the chemical formula disclosed in the specification. The dye mixed according to the formula can substitute disperse yellow RGFL, has the same dyeing effect as the disperse yellow RGFL, and keeps the ratio of the dyeing monomer B-dyeing monomer C mixture to the dyeing monomer A at 3:7-4:6. The method for preparing the finished product dye comprises the following steps: adding assistants and water or any other lubricant, milling with a sand mill, and drying the finished product to synthesize the color of the disperse yellow RGFL. The finished product can be used directly to completely substitute the disperse yellow dye RGFL.

Description

technical field [0001] The invention relates to a disperse dye formula, especially a disperse yellow dye formula. Background technique [0002] Disperse dyes are a class of non-ionic dyes with low water solubility. It was first used for the dyeing of acetate fiber, known as acetate dye. With the development of synthetic fibers, nylon and polyester have appeared one after another, especially polyester, because of its high alignment, less fiber voids, and strong hydrophobicity, it is necessary to expand the fiber with a carrier or under high temperature and thermal melting, so that the dye can enter Fiber and dyed. Therefore, new requirements are put forward for dyes, that is, dyes with better hydrophobicity, certain dispersibility and sublimation resistance are required. At present, the disperse dyes used for dyeing polyester fabrics in printing and dyeing processing basically have these properties, but due to the variety There are many, and it must be selected according t...

AI Technical Summary

Problems solved by technology

[0003] Since the European Union listed Disperse Yellow RGFL, also known as C.I. Disperse Yellow 23, as a prohibited dye, the search for substitutes for Disperse Yellow RGFL has been launched in China, but no breakthrough results have been achieved, and a substitute for Disperse Yellow RGFL has been developed. , is still a relatively large subject