Bis-azo shading dyes

Abstract

A laundry.treatment composition comprising : (i) from 2 to 7 wt% of a surfactant; and, (ii)Trorri 0.00001 to 0.5 wt%, of a bis-azo oxyalkylene dye, wherein the bis-azo oxyalkylene dye is selected from structure (I) and structure {II):wherein : n isselected frgm: 0; 1; and, 2; Rt is H; and CH3; R2 is selected from : COCH3; COC2H5; H; and, Ph; . .. R3 and R4 are independently selected from: H; Me; and, Et; P is selected from: C1-C4alkyl; 0Q1-C4-alkyl; and, an oxyalkylene group having ope or more repeating units; and, G is an oxyalkylene group having 1 or more repeating units.