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US 8,858,651 B2Granted
Laundry care compositions containing dyes
AssigneeThe Procter & Gamble Company
InventorsGregory Scot Miracle, Eduardo Torres, John David Bruhnke
Life of this patent
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Abstract
This application relates to laundry care compositions comprising thiophene azo carboxylate fabric shading dyes and methods of treating a textile comprising such laundry care compositions.
Claims16
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 R1 and R2 are independently selected from [(CH2CR′HO)x(CH2CR″HO)yQ], C1-12 alkyl, C6-10 aryl, or C7-C22 aryl alkyl, with the requirement that at least one of R1 and R2 is [(CH2CR′HO)x(CH2CR″HO)yQ],
- wherein R′ is selected from the group consisting of H, C1-4 alkyl, CH2O (CH2CH2O)zQ, phenyl and CH2OR5;
- wherein R″ is selected from the group consisting of H, C1-4 alkyl, CH2O(CH2CH2O)zQ, phenyl and CH2OR5;
- 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 R5 is selected from the group consisting of C1-C16 linear or branched alkyl, C6-C14 aryl, C7-C16 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 R8 is independently selected from the group consisting of H and C3-18 alkenyl, and wherein at least one R8 group is not H.
18 more elements
A laundry care composition comprising from about 0.00001 wt % to about 0.5 wt % thiophene azo carboxylate dye having the structure of Formula I:
- wherein R1 and R2 are independently selected from [(CH2CR′HO)x(CH2CR″HO)yQ], C1-12 alkyl, C6-10 aryl, or C7-C22 aryl alkyl, with the requirement that at least one of R1 and R2 is [(CH2CR′HO)x(CH2CR″HO)yQ],
- wherein R′ is selected from the group consisting of H, C1-4 alkyl, CH2O(CH2CH2O)zQ, phenyl and CH2OR5;
- wherein R″ is selected from the group consisting of H, C1-4 alkyl, CH2O(CH2CH2O)zQ, phenyl and CH2OR5;
- 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 R5 is selected from the group consisting of C1-C16 linear or branched alkyl, C6-C14 aryl, C7-C16 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 R8 is independently selected from the group consisting of H and C3-18 alkenyl, and wherein at least one R8 group is not H, and a laundry care adjunct wherein the laundry care adjunct comprises a fluorescent agent selected from:
- sodium 2 (4-styryl-3-sulfophenyl)-2H-napthol[1,2-djtriazole, disodium 4,4′-bis{[(4-anilino-6-{N methyl-N-2 hydroxyethyl)amino 1,3,5-triazin-2-yl)]amino}stilbeno-2-2′ disulfonate, disodium 4,4′-bis[(4-anilino-6-morpholino-1,3,5-triazin-2-yl)amino]stilbene-2-2′ disulfonate, or disodium 4,4′-bis(2-sulfostyryl)biphenyl, in an amount of from about 0.005 to about 2 wt % of the laundry care composition.
15 more elements
Dependencies are inferred from the claim text.