Conditioning hair care compositions in the form of dissolvable solid structures
The Dissolvable Solid Structure as described herein can be in the form of a fibrous structure comprising: (a) a polymeric structurant; (b) a high melting point fatty compound such as a fatty amphiphile, and (c) a cationic surfactant. The polymeric structurant has a weight average molecular weight of from about 10,000 to about 6,000,000 g/mol, and the components of the fibrous material form a homogenous material when molten. When water is added to the dissolvable solid structure at a ratio of about 5:1 a lamellar structure is formed.
1. A dissolvable solid fibrous structure comprising a plurality of filaments wherein the filaments comprise:
1) a polymeric structurant selected from the group consisting of Polyvinylpyrrolidone, polyvinylpyrrolidone copolymer, polydimethylacrylamide, polydimethylacrylamide copolymer, and combinations thereof;
2) a high melting point fatty material having a carbon chain length C12-C22 or mixtures thereof, wherein the melting point is above 25 C; and
3) a cationic surfactant;
wherein the components of the filaments form a homogenous material when molten, and wherein a lamellar structure is formed upon addition of water to the dissolvable solid structure in the ratio of about 5:1;
wherein the plurality of filaments are inter-entangled or otherwise associated with one another to form the fibrous structure;
wherein at least 50% of the filaments comprise a diameter of less than 150 microns;
wherein the article exhibits rapid dissolution of dissolving in water in less than about 30 strokes by the Hand Dissolution Method.
2. The structure of claim 1 , wherein the filaments comprise;
1) from about 1 wt % to about 50 wt % of the polymeric structurant;
2) from about 10 wt % to about 85 wt % of the high melting point fatty material having a carbon chain length C12-C22 or mixtures thereof, wherein the melting point is above 25 C; and
3) from about 1 wt % to about 60 wt % of the cationic surfactant.
3. The structure of claim 2 , further comprising from about 1 wt % to about 30 wt % of a dispersing agent.
4. The structure of claim 3 , wherein the dispersing agent is selected from the group consisting of a surfactant from the nonionic class of alkyl glucamides, reverse alkyl glucamides, cocoamidopropyl betaines, alkyl glucoside, triethanol amine, cocamide MEAs and mixtures thereof.
5. The structure of claim 2 , having from about 10 wt % to about 50 wt % of cationic surfactant.
6. The structure of claim 5 , having from about 20 wt % to about 40 wt % of cationic surfactant.
7. The structure of claim 2 , having from about 1 wt % to about 30 wt % of polymeric structurant.
8. The structure of claim 7 , having from about 1 wt % to about 10 wt % polymeric structurant.
9. The structure of claim 2 , wherein the high melting point fatty material is selected from the group consisting of a fatty alcohol and a blend of one or more fatty alcohols.
10. The structure of claim 2 , wherein the fatty amphiphile is a fatty acid.
11. The structure of claim 2 , wherein the fatty amphiphile is a fatty amide.
12. The structure of claim 2 , wherein the fatty amphiphile is a fatty ester.
13. The structure of claim 2 , wherein the cationic surfactant is quaternized ammonium salt.
14. The structure of claim 2 , wherein the cationic surfactant is a tertiary amine.
15. The structure of claim 2 , wherein the polymeric structurant is polyvinylpyrrolidone.
16. The structure of claim 2 , wherein the polymeric structurant is a polyvinylpyrrolidone copolymer.
17. The structure of claim 2 , wherein the polymeric structurant is polydimethylacrylamide.
18. The structure of claim 2 , wherein the dissolvable solid structure dissolves in less than about 20 strokes of the Hand Dissolution Method.
19. The structure of claim 2 , wherein the dissolvable solid structure dissolves in less than about 15 strokes of the Hand Dissolution Method.
20. The structure of claim 1 , wherein the filaments comprise meltblown filaments.
21. The structure of claim 1 , wherein at least 50% of the filaments comprise a diameter of less than 100 microns.
22. The structure of claim 1 , wherein at least 50% of the filaments comprise a diameter of less than 10 microns.
23. A dissolvable solid fibrous structure comprising a plurality of filaments wherein the filaments comprise:
1) from about 1 wt % to about 10 wt % of a polymeric structurant selected from the group consisting of polyvinylpyrrolidone, polyvinylpyrrolidone copolymer, and combinations thereof;
2) from about 20 wt % to about 70 wt % of a high melting point fatty material selected from the group consisting of cetyl alcohol, stearyl alcohol, behenyl alcohol, and mixtures thereof;
3) from about 10 wt % to about 50 wt % of a cationic surfactant comprising behentrimonium methosulfate;
wherein the components of the filaments form a homogenous material when molten, and wherein a lamellar structure is formed upon addition of water to the dissolvable solid structure in the ratio of about 5:1;
wherein the plurality of filaments are inter-entangled or otherwise associated with one another to form the fibrous structure;
wherein at least 50% of the filaments comprise a diameter of less than 150 microns;
wherein the article exhibits rapid dissolution of dissolving in water in less than about 30 strokes by the Hand Dissolution Method.