Laundry care compositions containing dyes

Patent metadata

Field	Value
Publication number	US-9371507-B2
Application number	US-201414489499-A
Country	US
Kind code	B2
Filing date	Sep 18, 2014
Priority date	Sep 18, 2013
Publication date	Jun 21, 2016
Grant date	Jun 21, 2016

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, F, Cl, and Br;
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 is 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 the group consisting of: 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, 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;
(b) polyamine N-oxide polymers;
(c) copolymers of N-vinylpyrrolidone and N-vinylimidazole;
(d) polyvinyloxazolidones;
(e) polyvinylimidazoles;
(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;
(b) amphiphilic graft co-polymers;
(c) zwitterionic soil suspension polymer; and
(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.

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 diameter 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 the laundry care composition according to claim 1 ; and (ii) rinsing and drying the textile.

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.

Assignees

• Procter & Gamble

Inventors

• Miracle Gregory Scot
• Torres Eduardo

Classifications

• C11D3/20

  containing oxygen {(C11D3/162, C11D3/164, C11D3/166, C11D3/168 take precedence)} · CPC title

• C11D3/40

  Dyes {; Pigments} · CPC title

• C11D3/3769

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

• C09B29/0827

  having N(-alkenylene/-alkynylene-CO)(-alkenylene/-alkynylene-CN) · CPC title

• C11D3/26

  containing nitrogen {(C11D3/162, C11D3/164, C11D3/166, C11D3/168 take precedence)} · CPC title