| abstract |
Disazo compounds which, in the free acid form, are represented by the formula (1), impart red hues to cellulosic fibres (esp. cotton) and blends thereof with polyester, acrylic or polyamide fibres or wool. <IMAGE> wherein X is H or SO3H, Y is a group of the formula (2): <IMAGE> (where R1 is H, CH3 or C2H5 and R2 and R3 are independently H, Cl, CH3, SO3H or COOH) and D is a group of the formula (3): <IMAGE> (wherein R4 and R5 are independently H, CH3 or OCH3, Z is CONH, NHCO, SO2CH2 or SO2NH and R6 and R7 are independently H, CH3 or Cl). |