Reactive dye substituted by benzene-containing sulfonamide and derivative of benzene-containing sulfonamide, and preparation method of reactive dye
A technology of reactive dyes and benzenesulfonamide, applied in the direction of reactive dyes, azo dyes, organic dyes, etc., to achieve the effect of broad application prospects and high light fastness
Active Publication Date: 2019-04-12
DALIAN UNIV OF TECH
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The invention relates to the field of reactive dye, and particularly relates to a reactive dye substituted by benzene-containing sulfonamide and a derivative of the benzene-containing sulfonamide, anda preparation method of the reactive dye. The reactive dye substituted by the benzene sulfonamide and the derivative of the benzene sulfonamide has a structure represented by a general formula I. Inmolecules of the reactive dye, benzene sulfonamide and substituted benzene sulfonamide groups are directly connected with halogenated s-triazine molecules, and the electron-cloud density of carbon atoms on a triazine ring is reduced through an electron-absorbing effect, so that a nucleophilic substitution reaction occurs easily, therefore, reaction activity of the triazine structure is equivalentto reaction activity of aniline ethyl sulfonyl sulfate, the reaction rate of the dye at 60 DEG C is equivalent to the reaction rate at 90 DEG C, and energy-saving dyeing under mild conditions can be realized. In addition, the dye has high light fastness and has a wide application prospect.
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