Patent ID: 8673024
Filing Date: 2014-03-18
Classification: C09B,C11D

Abstract:
1. A domestic method of treating a textile, the method comprising the steps of: (i) treating a textile with an aqueous solution of a blue or violet cationic phenazine dye which is not covalently bound to a negatively charges substituent, the phenazine dye selected from: wherein: X 1 is selected from: —F; —N(CH 3 ) 2 ; —N(CH 2 CH 3 ) 2 ; —N(H)COCH 3 ; and, —N(H)COCH 2 CH 3 ; X 2 is selected from: —F; —N(CH 3 ) 2 ; —N(CH 2 CH 3 ) 2 ; —N(H)COCH 3 ; and, —N(H)COCH 2 CH 3 ; X 3 is selected from: —H; —F; —CH 3 ; —C 2 H 5 ; —OCH 3 ; and, —OC 2 H 5 ; X 4 is selected from: —H; —CH 3 ; —C 2 H 5 ; —OCH 3 ; and, —OC 2 H 5 ; Y 1 is selected from: —OH; —OCH 2 CH 2 OH; —CH(OH)CH 2 OH; and, Y 2 is selected from: —OH; —OCH 2 CH 2 OH; —CH(OH)CH 2 OH; —OC(O)CH 3 ; and, C(O)OCH 3 , the aqueous solution comprising from 1 ppb to 1 ppm of the azine dye; and, from 0.0 g/L to 3 g/L of a surfactant; and, (ii) optionally rinsing and drying the textile.