FIELD: chemistry.
SUBSTANCE: invention relates to fibre-reactive dyes for dyeing or printing textile fibre materials. Disclosed is a novel reactive dye of formula (1), where R1 is hydrogen, R2 is hydrogen, methyl or -CH2-SO3H, D1 is a radical of formula (2), D2 is a radical of formula (3aa), Y in D2 is vinyl, β is sulphatoethyl, Y in D1 is vinyl, β is chloroethyl, β is sulphatoethyl, k equals 1 or 2, m equals 2 or 3.
EFFECT: disclosed dye provides on cellulose or amide-containing fibrous materials when dyeing or printing a dye with high light fastness of 4-5 points, strength, and high colour depth while reducing concentration of dye.
7 cl, 5 tbl, 35 ex
