Patent ID: 8858651

Claim:
A method of treating a polyester and/or nylon-comprising textile, the method comprising the steps of (i) treating the textile with an aqueous solution comprising a laundry care adjunct and from about 1 ppb to about 500 ppm of a thiophene azo carboxylate dye; and (ii) rinsing and drying the textile, said dye having a structure of Formula I: wherein R 1 and R 2 are independently selected from [(CH 2 CR′HO) x (CH 2 CR″HO) y Q], C 1-12 alkyl, C 6-10 aryl, or C 7 -C 22 aryl alkyl, with the requirement that at least one of R 1 and R 2 is [(CH 2 CR′HO) x (CH 2 CR″HO) y Q], wherein R′ is selected from the group consisting of H, C 1-4 alkyl, CH 2 O (CH 2 CH 2 O) z Q, phenyl and CH 2 OR 5 ; wherein R″ is selected from the group consisting of H, C 1-4 alkyl, CH 2 O(CH 2 CH 2 O) z Q, phenyl and CH 2 OR 5 ; wherein 1≦x+y≦50: wherein y≧1; wherein −z=0 to 20; and wherein Q is selected from the group consisting of H and Y wherein Y is as defined below; with the proviso that the dye comprises at least one Q group that is Y; each R 5 is selected from the group consisting of C 1 -C 16 linear or branched alkyl, C 6 -C 14 aryl, C 7 -C 16 arylalkyl and mixtures thereof; and wherein Y is an organic radical represented by Formula II wherein independently for each Y group, M is H or a charge balancing cation; m is 0 to 5; n is 0 to 5; the sum of m+n is 1 to 10; each R 8 is independently selected from the group consisting of H and C 3-18 alkenyl, and wherein at least one R 8 group is not H.