Low-temperature environment-friendly dispersed dye

Abstract

The invention discloses a low-temperature environment-friendly dispersed dye which is composed of following components: 3-47% by weight of a component A, which is composed of one or more dye monomers and is represented as the general formula (I), wherein R1 is a methyl group, an ethyl group, a propyl group, an isopropyl group, a n-butyl group, a sec-butyl group, a tert-butyl group or (CH2)3OCH(CH3)2; 1-17% by weight of a dye monomer B which is represented as the general formula (II); and the balanced being an additive. When the dispersed dye in the invention is matched with a low-temperature dispersed dye, both cooperation and compatibility are excellent. Compared with dispersed yellow E-GL, the dispersed dye is bright and full in color.

Description

technical field [0001] The invention relates to a low-temperature environment-friendly disperse dye, which is especially suitable for dyeing and printing polyester fiber and acetate fiber materials. Background technique [0002] On the one hand, the low-temperature old ternary colors: Disperse Yellow RGFL (C.I. Disperse Yellow 23), Disperse Red 3B, and Disperse Blue 2BLN have been widely used in printing and dyeing companies for nearly 20 years. Almost no company has not used the above-mentioned ternary colors. It is known to everyone in the industry, but due to research, it has been found that disperse yellow RGFL has its fatal flaw: the main raw material for its synthesis: p-ammonia and its azobenzene is a suspected carcinogenic compound, and the finished disperse yellow RGFL carries p-amino Azobenzene, and stored at a high temperature of 150°C-170°C, when the fabric is set, some azo bonds are broken and decomposed into p-aminoazobenzene. For this reason, many internationa...

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Problems solved by technology

[0002] On the one hand, the low-temperature old ternary colors: Disperse Yellow RGFL (C.I. Disperse Yellow 23), Disperse Red 3B, and Disperse Blue 2BLN have been widely used in printing and dyeing companies for nearly 20 years. Almost no company has not used the above-mentioned ternary colors. It is known to everyone in the industry, but due to research, it has been found that disperse yellow RGFL has its fatal flaw: the main raw material for its synthesis: p-ammonia and its azobenzene is a suspected carcinogenic compound, and the finished disperse yellow RGFL carries p-amino Azobenzene, and stored at a high temperature of 150°C-170°C, when the fabric is set, some azo bonds are broken and decomposed into p-aminoazobenzene. For this reason, many international organizations, including the official organization of the European Union (REACH), will disperse yellow RGFL is listed as a ban on the use of disperse dyes. In this way, one yellow is missing in the three primary colors, and many colors cannot be blended. It is urgent to find a yellow dye to replace disperse yellow RGFL from other dye varieties. The most typical one is Zhejiang Longsheng. Disperse Yellow E-GL

On the other hand, Longsheng's Disperse Yellow E-GL generally solves the ternary color matching problem of printing and dyeing enterprises, but there are still many defects. First, the level dyeing property is not as good as Disperse Yellow RGFL (C.I. Disperse Yellow 23) , the second is that the color is relatively dark, and it cannot be competent when the color requirements are relatively bright.

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