Laundry cleansing and conditioning compositions
View Patent ↗Fabric and textile conditioning compositions containing particular combinations of cationic polymers and anionic surfactants are disclosed. The polymers are soluble or dispersible to at least 0.01% by weight in distilled water at 25° C., are preferably below a particular molecular weight to afford optimal cleaning and conditioning, and must be present in an effective amount to yield a substantial conditioning benefit. A method of conditioning articles using the polymer/surfactant combinations is also disclosed.
1. A liquid laundry composition consisting essentially of one or more cationic polymers and one or more anionic surfactants having an HLB of greater than 4, wherein the composition has a percent transmittance of greater than about 50 at 570 nanometers measured in the absence of dyes and contains less than about 2% anionic polysaccharide;
wherein at least one anionic surfactant is selected from the group consisting of alkali and alkaline earth metal salts of fatty carboxylic acids, alkali and alkaline earth metal salts of alkylbenzene sulfonates.
2. The composition according to claim 1 wherein the composition comprises less than 10% phosphate and less than 10% zeolite.
3. The composition according to claim 1 wherein at least one cationic polymer is selected from the group consisting of dimethyl diallyl ammonium chloride/acrylamide copolymers, dimethyl diallyl ammonium chloride/acrylic acid/acrylamide terpolymers, vinylpyrrolidone/methyl vinyl imidazolium chloride copolymers, polydimethyl diallyl ammonium chloride, starch hydroxypropyl trimmonium chloride, polymethacryl amidopropyl trimethyl ammonium chloride, acrylamidopropyl trimmonium chloride/acrylamide copolymers, guar hydroxypropyl trimonium chloride, and hydroxyethyl cellulose derivatized with trimethyl ammonium substituted epoxide.
4. The composition according to claim 1 wherein said cationic polymer and said anionic surfactant are present at a ratio of less than about 1:4.
5. A laundry composition comprising one or more cationic polymers and more than about 5% of one or more anionic surfactants having an HLB of greater than about 4 and having a Softening Parameter of greater than about 40.
6. The composition according to claim 5 , wherein at least one cationic polymer is selected from the group consisting of dimethyl diallyl ammonium chloride/acrylamide copolymers, dimethyl diallyl ammonium chloride/acrylic acid/acrylamide terpolymers, vinylpyrrolidone/methyl vinyl imidazolium chloride copolymers, polydimethyl diallyl ammonium chloride, starch hydroxypropyl trimmonium chloride, polymethacryl amidopropyl trimethyl ammonium chloride, acrylamidopropyl trimmonium chloride/acrylamide copolymers, guar hydroxypropyl trimonium chloride, and hydroxyethyl cellulose derivatized with trimethyl ammonium substituted epoxide.
7. The composition according to claim 5 , wherein at least one cationic polymer is a cationic substituted siloxane or polyquaternium 10.
8. The composition according to claim 5 , wherein one or more of the cationic polymers have a nitrogen content of less than about 2%.
9. The composition according to claim 5 , wherein one or more cationic polymers have a molecular weight of less than about 850,000 daltons.
10. The composition according to claim 5 , wherein at least one anionic surfactant is selected from the group consisting of alkali and alkaline earth metal salts of fatty carboxylic acids, alkali and alkaline earth metal salts of alkylbenzene sulfonates.
11. The composition according to claim 5 , wherein the composition is selected from the group consisting of a liquid laundry detergent, a liquid fabric softener, a powder, paste, granule, molded solid, water soluble sheet and water soluble sachet.
12. The composition according to claim 5 , wherein said composition is a liquid or paste having a pH below the pKa of an amine or phosphine used to quaternize one or more of the cationic polymers.
13. The composition according to claim 5 , wherein the composition is diluted in use by more than a weight ratio of about 1:100 with water or solvent.
14. The composition according to claim 5 , wherein said composition is a powder and said one or more cationic polymers have a dissolution parameter of 55 or greater.
15. A method for conditioning textiles comprising, in no particular order, the steps of:
a. providing a laundry detergent or fabric softener composition according to claim 6 in concentration to effectively soften and condition fabrics under predetermined laundering conditions;
b. contacting one or more articles with the composition at one or more points during a laundering process; and
c. allowing the articles to dry or mechanically tumble-drying them.
16. The method according to claim 15 , wherein one or more cationic polymers in said composition have a molecular weight of less than about 850,000 daltons.
17. The method according to claim 15 , wherein the detergent or fabric softener composition is diluted by a weight ratio of more than about 1:100 with water or solvent.
18. The method according to claim 15 , wherein at least one cationic polymer is selected from the group consisting of dimethyl diallyl ammonium chloride/acrylamide copolymers, dimethyl diallyl ammonium chloride/acrylic acid/acrylamide terpolymers, vinylpyrrolidone/methyl vinyl imidazolium chloride copolymers, polydimethyl diallyl ammonium chloride, starch hydroxypropyl trimmonium chloride, polymethacryl amidopropyl trimethyl ammonium chloride, acrylamidopropyl trimmonium chloride/acrylamide copolymers, guar hydroxypropyl trimonium chloride, and hydroxyethyl cellulose derivatized with trimethyl ammonium substituted epoxide.
19. The method according to claim 15 , wherein at least one anionic surfactant is selected from the group consisting of alkali and alkaline earth metal salts of fatty carboxylic acids, alkali and alkaline earth metal salts of alkylbenzene sulfonates.
20. The method according to claim 15 , wherein at least one cationic polymer is a cationic substituted siloxane.
21. The method according to claim 15 , wherein the composition is a liquid laundry detergent or a liquid fabric softener.
22. The method according to claim 21 , wherein the composition comprises less than about 2% anionic polysaccharide, less than 10% phosphate, less than 10% zeolite, and has a percent transmittance that is greater than about 50 at 570 nanometers measured in the absence of dyes.
23. The method according to claim 15 , wherein the composition is a powder, paste, granule, molded solid, water soluble sheet or water soluble sachet.
24. The method according to claim 15 , wherein said composition is a powder comprising one or more cationic polymers having a dissolution parameter of 55 or greater.
25. The method according to claim 15 , wherein said composition is a liquid or paste having a pH below the pKa of an amine or phosphine used to quaternize one or more of the cationic polymers.