Disperse yellow dye prescription

Abstract

The invention relates to a disperse dye compound, and particularly relates to a disperse yellow dye compound. The disperse yellow dye prescription is obtained by mixing the following raw materials in percentage by mass: 65% of a chromatid A with a chemical formula shown in the description, 10% of a chromatid B with a chemical formula shown in the description, and 25% of a chromatid C with a chemical formula shown in the description. A dye mixed according to the scheme compound can replace a disperse yellow RGFL, and has a dyeing effect the same as that of the disperse yellow RGFL; the ratio of a mixture of the chromatid B and the chromatid C to the chromatid A is kept at (3:7)-(4:6); and when a finished dye product is prepared, auxiliaries and water are added in the chromatids, the obtained mixture is ground by using a sand mill, and then the obtained product is dried, so that the color of the disperse yellow RGFL can be synthesized, and then the obtained finished product can be directly used and can replace the disperse yellow 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