Copper phthalocyanine blue reactive dyes, process for their production, and their use for dyeing cellulosic fibers.

摘要

Copper phthalocyanine blue reactive dyes of the formula <CHEM> wherein [CuPc] is a copper phthalocyanine nucleus, W is <CHEM> in which R1 and R2 are each a hydrogen atom or a methyl group and i is an integer of 2 to 6 both inclusive, Y1 and Y2 are each a hydrogen atom, a methyl, methoxy or sulfonic acid group, l and m are each a number of 0 to 3, and n is a number of 1 to 3, provided that l+m+n is not more than 4. Process for their preparation. These dyes are suitable for dyeing cellulose fibers to afford a turquoise blue dyed product superior in fastnesses, acid stability, build-up property, level dyeing property and low-temperature dyeability.