Compositions and methods for providing a benefit

• US 8,728,172 B2
• Filed: 03/21/2011
• Issued: 05/20/2014
• Est. Priority Date: 08/28/2008
• Status: Active Grant

• Current Assignee: The Procter & Gamble Company
• Original Assignee: The Procter & Gamble Company
• Inventors: Corona, Alessandro III, Everingham, Brian W., Frankenbach, Gayle Marie, Hsieh, Heidi, Panandiker, Rajan Keshav, Roselle, Brian Joseph, Schubert, Beth Ann, Sivik, Mark Robert, Vetter, Kerry Andrew, Waning, Gregory Thomas
• Primary Examiner(s): Mruk, Brian P
• Application Number:
  US13/052,326
• Publication Number:
  US 20110162154A1
• Time in Patent Office: 1,156 Days
• Field of Search: 813/7, 510/276, 510/330, 510/426, 510/475, 510/504
• US Class Current: 8/137
• CPC Class Codes: C11D 17/042 Water soluble or water disintegrable containers or substrates containing cleaning compositions or additives for cleaning compositions
• CPC Class Codes: C11D 3/3769 (Co)polymerised monomers containing nitrogen, e.g. carbonamides, nitriles or amines
• CPC Class Codes: D06M 15/3562 containing nitrogen
• CPC Class Codes: D06M 15/61 Polyamines polyimines
• CPC Class Codes: D06M 2200/25 Resistance to light or sun, i.e. protection of the textile itself as well as UV shielding materials or treatment compositions therefor; Anti-yellowing treatments

Abstract

Compositions and methods useful for providing one or more benefits, including a color rejuvenation and/or color maintenance benefit to a fabric are disclosed. The disclosed compositions contain at least one cationic polymer. The methods include providing the disclosed compositions in combination with a source of anionic surfactant. Unit dose and multi-compartment systems are also disclosed.

Claims

1. A method of delivering a color maintenance and/or rejuvenation benefit to a fabric comprising the steps of:

a. washing a fabric;

b. combining a fabric care additive composition having an acidic pH comprising, based on total composition weight, from about 5% to about 20% of a cationic polymer, said fabric care additive composition further comprising a cationic surfactant, wherein said cationic polymer has a charge density of from about 0.05 meq/g to about 25 meq/g at a pH of from about 2 to about 11 and said cationic polymer is a polymer selected from the group consisting of alkylamine epichlorohydrin polymers, homopolymers of diallyldimethyl ammonium chloride, copolymers of diallyldimethyl ammonium chloride, and combinations thereof, in the presence of water in a washing machine with a conventional detergent as a source of anionic surfactant to form a mixture having an ACD;

CCD ratio of from about 2;

1 to about 0.1;

1;

c. contacting said mixture with said fabric to form a treated fabric;

d. rinsing said treated fabric;

e. applying one or more finishing treatments selected from the group consisting of drying, pressing, starching, perfuming, and combinations thereof to the treated fabric

wherein said method is carried out as a service to a consumer.

2. A method according to claim 1, wherein said treated fabric, as measured when dry, has a Δ

L value of from about −

0.01 to about −

15.

3. A method according to claim 1, wherein the source of anionic surfactant comprises, based on total source of anionic surfactant weight, from about 2% to about 50% anionic surfactant.

4. A method according to claim 1 wherein the source of anionic surfactant comprises, based on total source of anionic surfactant weight, from about 1.0% to about 50% of alkylethoxysulfonate.

5. A method according to claim 1, wherein the source of anionic surfactant comprises, based on total source of anionic surfactant weight, less than about 5% linear alkylbenzene sulfonate.

6. A method according to claim 1, wherein the source of anionic surfactant comprises, based on total source of anionic surfactant weight, less than about 10% nonionic surfactant.

7. A method according to claim 1, wherein the ppm of the cationic polymer in the mixture is from about 1 to about 5,000.

8. A method according to claim 1, wherein the cationic charge density ratio of said composition to said source of anionic surfactant is about 0.79:

1.

9. A method according to claim 1, wherein the cationic surfactant is lauryl trimethyl ammonium chloride.

10. A method according to claim 1, wherein the ppm of the cationic polymer in the mixture as provided by the fabric care additive composition is from about 100 to about 2000.

11. A method according to claim 1, wherein the fabric care additive composition is essentially free of organosilicones.

12. A method of delivering a color maintenance and/or rejuvenation benefit to a fabric comprising the steps of:

a. optionally washing a fabric;

b. combining a fabric care additive composition having an acidic pH comprising, based on total composition weight, from about 5% to about 20% of a cationic polymer, wherein said cationic polymer has a charge density of from about 0.05 meq/g to about 25 meq/g at a pH of from about 2 to about 11 and said cationic polymer is a polymer selected from the group consisting of alkylamine epichlorohydrin polymers, homopolymers of diallyldimethyl ammonium chloride, copolymers of diallyldimethyl ammonium chloride, and combinations thereof, in the presence of water with a conventional detergent as a source of anionic surfactant to form a mixture having an ACD;

CCD ratio of from about 7;

1 to about 0.1;

1;

c. contacting said mixture in an aqueous environment with said fabric to form a treated fabric;

d. optionally rinsing said treated fabric;

e. optionally applying one or more finishing treatments selected from the group consisting of drying, pressing, starching, perfuming, and combinations thereof to the treated fabric.

13. A method according to claim 12, wherein the fabric care additive composition is provided in a unit dose system wherein the fabric care additive composition is enclosed in a water miscible pouch.

14. A method according to claim 13, wherein the water miscible pouch has at least two compartments, wherein a first compartment comprises the source of anionic surfactant, and the second compartment comprises the fabric care additive composition.

15. A method according to claim 12, wherein the fabric care additive composition and the source of anionic surfactant, when diluted at a ratio of about 1:

3800 in water, form primary and/or colloidal particles having a size of from about 0.01 μ

m to about 100 μ

m.

16. A method according to claim 12, wherein the fabric care additive composition further comprises a cationic surfactant.

17. A method according to claim 16, wherein the cationic surfactant is lauryl trimethyl ammonium chloride.

18. A method according to claim 12, wherein the fabric care additive composition consists essentially of cationic polymer, cationic surfactant, formic acid, and water.

19. A method according to claim 12, wherein the fabric care additive composition is essentially free of organosilicones.

20. A method according to claim 12, wherein the mixture is essentially free of organo silicones.