Laundry care compositions containing dyes

Patent metadata

Field	Value
Publication number	US-2016257912-A1
Application number	US-201615157493-A
Country	US
Kind code	A1
Filing date	May 18, 2016
Priority date	Sep 18, 2013
Publication date	Sep 8, 2016
Grant date	—

Abstract

Laundry care compositions comprising thiophene azo carboxylate fabric shading dyes and methods of treating a textile comprising such laundry care compositions.

First claim

What is claimed is:

1 . 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 R 1 is selected from the group consisting of H and electron-withdrawing groups;
wherein R 2 is (CH 2 CH 2 O) y Q and R 3 is (CH 2 CH 2 O) 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 R 4 is independently selected from the group consisting of H, C 3-18 or C 4 -C 18 linear or branched alkyl, C 3-18 or C 4 -C 18 linear or branched alkenyl, and mixtures thereof, and wherein at least one R 4 group is not H, and mixtures thereof.

2 . A laundry care composition according to claim 1 wherein the thiophene azo carboxylate dye comprises dye of formula I wherein each of Q and Q′ are each independently selected from Y.

3 . A laundry care composition according to claim 1 wherein the thiophene azo carboxylate dye comprises dye of formula I wherein 0.4(y+y′)≦the sum of the number of carbon atoms in all the R 4 groups ≦2.0(y+y′).

4 . A laundry care composition according to claim 1 wherein in the dye structure of Formula I, R 1 comprises Cl.

5 . A laundry care composition according to claim 1 wherein in the dye structure of Formula I, R 1 is H.

6 . A laundry care composition according to claim 1 wherein the laundry care adjunct comprises a first wash lipase.

7 . A laundry care composition according to claim 1 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, and disodium 4,4′-bis (2-sulfostyryl) biphenyl and mixtures thereof.

8 . A laundry care composition according to claim 7 wherein the fluorescent agent is present in an amount of from 0.005 to 2 wt % of the laundry care composition.

9 . A laundry care composition according to claim 1 wherein the laundry care adjunct comprises a dye transfer inhibitor selected from the group consisting of:
(a) polyvinylpyrrolidone polymers; or
(b) polyamine N-oxide polymers; or
(c) copolymers of N-vinylpyrrolidone and N-vinylimidazole; or
(d) polyvinyloxazolidones; or
(e) polyvinylimidazoles; or
(f) mixtures thereof.

10 . A laundry care composition according to claim 1 wherein the laundry care adjunct comprises a soil suspension polymer selected from the group comprising:
(a) amphiphilic alkoxylated polyamines; or
(b) amphiphilic graft co-polymers; or
(c) zwitterionic soil suspension polymer; or
(d) mixtures thereof.

11 . A laundry care composition according to claim 1 wherein the thiophene azo dye has a molecular weight from greater than about 760 Daltons.

12 . A laundry care composition according to claim 1 in the form of a unit dose product such as a pouch.

13 . A laundry care composition according to claim 1 in the form of a multi-compartment unit dose product.

14 . A laundry care composition according to claim 1 comprising, based on total laundry care composition weight, a total of no more than 15% by weight water.

15 . A laundry care composition according to claim 1 comprising in addition, from about 10% to about 70% of a water-miscible organic solvent having a molecular weight greater than about 70 Daltons.

16 . A laundry care composition according to claim 1 comprising, based on total laundry care composition weight, a perfume microcapsule comprising a core and a shell that encapsulates said core, said perfume microcapsule having a D[4,3] average particle of from about 0.01 microns to about 200 microns.

17 . 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 R 1 is selected from the group consisting of H and electron-withdrawing groups;
wherein R 2 is (CH 2 CH 2 O) y Q and R 3 is (CH 2 CH 2 O) 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 R 4 is independently selected from the group consisting of H, C 3-18 or C 4 -C 18 linear or branched alkyl, C 3-18 or C 4 -C 18 linear or branched alkenyl, and mixtures thereof, and wherein at least one R 4 group is not H.

18 . A method according to claim 17 wherein 0.4(y+y′)≦the sum of the number of carbon atoms in all the R 4 groups ≦2.0(y+y′), and mixtures thereof.

19 . A method according to claim 17 wherein the textile comprises polyester and/or nylon fibers in separate or blended textiles, optionally with cellulosic fibres.

20 . A composition according to claim 1 in which the dye comprises at least one dye having a structure as shown in Table 1 herein.

Assignees

• Procter & Gamble

Inventors

• Miracle Gregory Scot
• Torres Eduardo

Classifications

• C11D3/38627

  containing lipase · CPC title

• C09B67/0046

  Mixtures of two or more azo dyes · CPC title

• C11D3/3769

  (Co)polymerised monomers containing nitrogen, e.g. carbonamides, nitriles or amines · CPC title

• C11D3/2003

  Alcohols; Phenols · CPC title

• C11D17/041

  Compositions releasably affixed on a substrate or incorporated into a dispensing means · CPC title