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US 2015/0080284 A1Published application
Laundry care compositions containing dyes
AssigneeThe Procter & Gamble Company
InventorsGregory Scot Miracle, Eduardo Torres
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Abstract
Laundry care compositions comprising thiophene azo carboxylate fabric shading dyes and methods of treating a textile comprising such laundry care compositions.
Claims20
A laundry care composition comprising a laundry care adjunct and from 0.00001 wt % to 0.5 wt % thiophene azo carboxylate dye or mixtures thereof having the structure of Formula I:
- wherein R1 is selected from the group consisting of H and electron-withdrawing groups;
- wherein R2 is (CH2CH2O)yQ and R3 is (CH2CH2O)y′Q′;
- wherein y and y′ are integers independently selected from 1 to 39,
- wherein 8≦(y+y′)≦40;
- wherein Q and Q′ are independently 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 or Q′ group that is Y;
- 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 R4 is independently selected from the group consisting of H, C3-18 or C4-C18 linear or branched alkyl, C3-18 or C4-C18 linear or branched alkenyl, and mixtures thereof, and wherein at least one R4 group is not H, and mixtures thereof.
10 more elements
A method of treating a 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 100 ppm of a thiophene azo carboxylate dye or mixtures thereof;
- and (ii) rinsing and drying the textile, the dye comprising a thiophene azo carboxylate dye having the structure of Formula I:
- wherein R1 is selected from the group consisting of H and electron-withdrawing groups;
- wherein R2 is (CH2CH2O)yQ and R3 is (CH2CH2O)y′Q′;
- wherein y and y′ are integers independently selected from 1 to 39,
- wherein 8≦(y+y′)≦40;
- wherein Q and Q′ are independently 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 or Q′ group that is Y;
- 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 R4 is independently selected from the group consisting of H, C3-18 or C4-C18 linear or branched alkyl, C3-18 or C4-C18 linear or branched alkenyl, and mixtures thereof, and wherein at least one R4 group is not H.
11 more elements
Dependencies are inferred from the claim text.