Fibre-reactive dyes contg. bis- halo- triazinyl-urea gps. - as golden-yellow dyes for cellulosics, also natural and synthetic polyamides

摘要

The novel, fibre-reactive dyes are of formula (I) (where F is the residue of a chromogen; R1-3 are independently H, alkyl or aryl; X1 and X2=halogen; Y1=halogen, amino, alkoxy, aryloxy; alkylmercapto or aryl-mercapto). They are prepd. by reacting an N:N'-bis-(halo-s-triazinyl)-urea of formula (I) where X1 replaces the F -NR1- gp. with dyestuffs of formula (II) F -NHR1 (II). Used for dyeing and printing cellulosics, esp. cotton, but also wool, silk, leather, superpolyamides, superpolyurethanes, and mixed fibres, fast golden-yellow shades.