Disazo red reactive dye compound containing quarternary ammonium group

摘要

The present invention relates to a disazo red reactive dyestuff containing quaternary ammonium group of the following formula (1): wherein R', R'', m, n, Y₁ and Y₂ are defined the same as in the specification. The disazo red reactive dyestuff of the present invention has a good dye uptake while dyeing cellulose fibers, which satisfies the economical demand of high build up in the market.