Formula of multi-component mixed disperse yellow dye

Abstract

The invention relates to a disperse dye and especially relates to a multi-component mixed disperse yellow dye. The multi-component mixed disperse yellow dye is prepared by mixing 58 to 68wt% of a dyeing monomer A and 32 to 42wt% of a mixture of a dyeing monomer B and a dyeing monomer C, wherein the dyeing monomers A, B and C have the chemical formulas shown in the patent specification. The multi-component mixed disperse yellow dye can replace disperse yellow RGFL and has dyeing effects the same as dyeing effects of the disperse yellow RGFL. A certain ratio of the mixture of the dye monomer B and the dye monomer C to the dye monomer A in the multi-component mixed disperse yellow dye can be kept. In finished dye preparation, assistants and water are added into the dyeing monomers, and the mixture is grinded by a sand mill and then is dried to form the finished product. The finished product has a disperse yellow RGFL color, can be used directly and can replace the disperse yellow RGFL.

Description

technical field [0001] The invention relates to a disperse dye, in particular to a multi-component blending type disperse yellow dye. 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 ...

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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

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