Dark red reactive dye and preparation method thereof

Abstract

The invention discloses dark red reactive dye and a preparation method thereof. The dark red reactive dye is one material selected from general formulas of the formula (I) or is a mixture obtained through compounding two or more structures selected from the general formulas of the formula (I) according to any proportion. One material shown by the formula (I) is selected from any one of materials of the following structure general formulas or is a mixture of two or more materials of the structural general formulas, wherein R1, R2, R3 and R4 in the formula (I) respectively and independently represent -H, -CH3, -OCH3 or -SO3M; Y1 and Y2 respectively and independently represent -CH=CH2 or -C2H4OSO3M; M represents hydrogen or alkali metal. The dark red reactive dye has the advantages that the lifting performance is good; the friction firmness, the water washing firmness, the light fastness and the heat stability are high. The formula (I) is shown as the accompanying drawing.

Description

technical field [0001] The invention belongs to the field of reactive dyes in new material technology, in particular to a deep red reactive dye and a preparation method thereof. Background technique [0002] Reactive dyes are currently taking more and more market share, and people are paying more and more attention to their research. The research on reactive dyes began in 1956, and it has been half a century. In recent years, many review articles on reactive dyes have been published, not only involving the development of reactive dyes themselves, but also including the application performance and process of reactive dyes, focusing on improving their application performance and environmental protection. [0003] The general red reactive dyes use H acid and J acid as coupling components to combine with various aromatic amine diazo components to form a color matrix. Among them, the reactive crimson dye with J-acid structure is better than the reactive red dye with H-acid stru...

AI Technical Summary

Problems solved by technology

Among them, the reactive crimson dye with J-acid structure is better than the reactive red dye with H-acid structure in promotion and deep dyeing, but the reactive red dye with J-acid structure has less water-soluble groups, and its rubbing fastness, washing fastness, etc. The intensity is much worse than the reactive red dye with H acid structure

Especially when making some dark deep reds, it is difficult to have good lifting properties and dyeing depth, but also have good rubbing fastness and washing fastness, so it is often difficult to meet customers' requirements for these properties. Require

Images