Cleansing and conditioning products for skin or hair with improved deposition of conditioning ingredients

• US 6,190,678 B1
• Filed: 09/04/1998
• Issued: 02/20/2001
• Est. Priority Date: 09/05/1997
• Status: Expired due to Term

• Current Assignee: The Procter & Gamble Company
• Original Assignee: The Procter & Gamble Company
• Inventors: Hasenoehrl, Erik John, McAtee, David Michael
• Primary Examiner(s): Jarvis, William R. A.
• Assistant Examiner(s): KIM, VICKIE Y
• Application Number:
  US09/148,540
• Time in Patent Office: 900 Days
• Field of Search: 424/443, 424/70.19, 424/446, 424/401, 424/402, 206/812
• US Class Current: 424/401
• CPC Class Codes: A61K 8/0208 Tissues; Wipes; Patches
• CPC Class Codes: A61K 8/44 Aminocarboxylic acids or derivatives thereof, e.g. aminocarboxylic acids containing sulfur; Salts; Esters or N-acylated derivatives thereof
• CPC Class Codes: A61K 8/463 containing sulfuric acid derivatives, e.g. sodium lauryl sulfate
• CPC Class Codes: A61K 8/4946 Imidazoles or their condensed derivatives, e.g. benzimidazoles
• CPC Class Codes: A61Q 19/10 Washing or bathing preparations
• CPC Class Codes: A61Q 5/02 Preparations for cleaning the hair
• CPC Class Codes: A61Q 5/12 Preparations containing hair conditioners

Abstract

The present invention relates to a substantially dry, disposable, personal cleansing product useful for both cleansing and consistently conditioning the skin or hair. These products are used by the consumer by wetting the dry product with water. The product comprises of a water insoluble substrate, a lathering surfactant, and a conditioning component having a lipid hardness value of at least about 0.02 kg. This invention also encompasses methods for providing consistent deposition of conditioning agents to the skin or hair. The invention also encompasses methods for cleansing and conditioning the skin or hair using these products and to methods for manufacturing these products.

Claims

1. A disposable, single use personal care cleansing and conditioning product which, upon wetting, can be used to simultaneously cleanse and deposit conditioning agents onto the skin or hair, which product comprises:

(A) a water insoluble substrate,

(B) at least one lathering surfactant added onto or impregnated into said substrate, and

(C) a conditioning component added onto or impregnated into said substrate, separately from said lathering surfactant, said conditioning component having a lipid hardness value of greater than about 0.02 kg,

wherein said product is substantially dry prior to use.

2. A product according to claim 1 wherein said lathering surfactant comprises from about 0.5% to about 12.5% by weight of said water insoluble substrate, said conditioning component comprises from about 1% to about 99% by weight of said water insoluble substrate, and said lipid hardness value of the conditioning component is greater than about 0.05 kg.

3. A product according to claim 1 wherein said water insoluble substrate comprises at least one material selected from the group consisting of silks, keratins, celluloses, acetates, acrylics, cellulose esters, modacrylics, polyamides, polyesters, polyolefins, polyvinyl alcohols, wood pulp, cotton, hemp, jute, flax, acrylics, nylons, polyesters, polyproylenes, polyethylenes, polyvinyl acetates, polyurethanes, rayon, and mixtures thereof.

4. A product according to claim 3 wherein said water insoluble substrate is selected from the group consisting of nonwoven substrates, woven substrates, hydroentangled substrates, natural sponges, synthetic sponges, polymeric netted meshes, formed films, and mixtures thereof.

5. A product according to claim 4 wherein said water insoluble substrate comprises at least two sheets of fibers each in turn having different textures.

6. A product according to claim 1 wherein said lathering surfactant is selected from the group consisting of anionic lathering surfactants, nonionic lathering surfactants, amphoteric lathering surfactants, and mixtures thereof.

7. A product according to claim 6 wherein said anionic lathering surfactant is selected from the group consisting of sarcosinates, sulfates, isethionates, phosphates, taurates, and mixtures thereof;

wherein said nonionic lathering surfactant is selected from the group consisting of amine oxides, alkyl glucosides, alkyl polyglucosides, polyhydroxy fatty acid amides, alkoxylated fatty acid esters, sucrose esters, and mixtures thereof; and

wherein said amphoteric lathering surfactant is selected from the group consisting of betaines, sultaines, hydroxysultaines, alkyliminoacetates, iminodialkanoates, aminoalkanoates, and mixtures thereof.

8. A product according to claim 7 wherein said anionic lathering surfactant is selected from the group consisting of ammonium lauroyl sarcosinate, sodium trideceth sulfate, sodium lauroyl sarcosinate, ammonium laureth sulfate, sodium laureth sulfate, ammonium lauryl sulfate, sodium lauryl sulfate, ammonium cocoyl isethionate, sodium cocoyl isethionate, sodium lauroyl isethionate, sodium cetyl sulfate, and mixtures thereof;

wherein said nonionic lathering surfactant is selected from the group consisting of lauramine oxide, cocoamine oxide, decyl polyglucose, lauryl polyglucose, C12-14 glucose amides, sucrose cocoate, sucrose laurate, and mixtures thereof; and

wherein said amphoteric lathering surfactant is selected from the group consisting of disodium lauroamphodiacetate, sodium lauroamphoacetate, cetyl dimethyl betaine, cocoamidopropyl betaine, cocoamidopropyl hydroxy sultaine, and mixtures thereof.

9. A product according to claim 1 wherein said conditioning component comprises at least one oil soluble conditioning agent and at least one lipid hardening material such that the weighted arithmetic mean solubility parameter of said oil soluble conditioning agent is less than or equal to 10.5.

10. A product according to claim 9 wherein said oil soluble conditioning agent and lipid hardening material is selected from the group consisting of fatty acids, esters of fatty acids, fatty alcohols, ethoxylated alcohols, polyol polyesters, glycerin mono-esters, glycerin polyesters, epidermal and sebaceous hydrocarbons, lanolin, straight and branched hydrocarbons, silicone oil, silicone gum, vegetable oil, vegetable oil adduct, hydrogenated vegetable oils, nonionic polymers, natural waxes, synthetic waxes, polyolefinic glycols, polyolefinic monoester, polyolefinic polyesters, cholesterols, cholesterol esters and mixtures thereof.

11. A product according to claim 10 wherein said oil soluble conditioning agent and lipid hardening material is selected from the group consisting of C7-C100 straight and branched chain hydrocarbons, C1-C30 monoesters and polyesters of sugars, polyol polyesters, C1-C30 fatty acids, C1-C30 fatty alcohols, C1-C30 ethoxylated alcohols, glycerin mono and tri-esters, cholesterols, cholesterol esters natural waxes, synthetic waxes and mixtures thereof.

12. A product according to claim 11 wherein said oil soluble conditioning agent and lipid hardening material is selected from the group consisting of paraffin, mineral oil, petrolatum, cholesterols, cholesterol esters, stearyl alcohol, cetyl alchohol, cetearyl alcohol, behenyl alcohol, C10-30 polyesters of sucrose, stearic acid, palmitic acid, behenic acid, oleic acid, linoleic acid, myristic acid, lauric acid, ricinoleic acid, steareth-1-100, cetereath 1-100, cholesterols, cholesterol esters, glyceryl tribehenate, glyceryl dipalmitate, glyceryl monostearate, trihydroxystearin, ozokerite wax, jojoba wax, lanolin wax, ethylene glycol distearate, candelilla wax, carnauba wax, beeswax, and silicone waxes.

13. A product according to claim 1 wherein said conditioning component is a conditioning emulsion comprising,

(A) an internal phase comprising a water soluble conditioning agent selected from one or more water soluble agents such that the weighted arithmetic mean solubility parameter of said water soluble conditioning agent is greater than 10.5, and

(B) an external phase comprising an oil soluble agent selected from one or more oil soluble agents such that the weighted arithmetic mean solubility parameter of said water soluble conditioning agent is greater than 10.5.

14. A product according to claim 1 wherein said cleansing product further comprises a safe and effective amount of one or more active ingredients selected from the group consisting of anti-acne actives, anti-wrinkle and anti-skin actives, non-stearoidal anti-inflammatory actives, topical anesthetics, artificial tanning agents and accelerators, anti-microbial and anti-fungal agents, sunscreen actives, anti-oxidants and mixtures thereof.

15. A product according to claim 14 wherein said active ingredient is selected from the group consisting of salicylic acid, niacinamide, benzoyl peroxide, cis-retinoic acid, trans-retinoic acid, retinol, retinyl palmitate, phytic acid, N-acetyl L-cysteine, azelaic acid, lipoic acid, resorcinol, lactic acid, glycolic acid, ibuprofen, naproxen, hydrocortisone, phenoxyethanol, phenoxypropanol, phenoxyisopropanol, 2,4,4,′

-trichloro-2′

-hydroxy diphenyl ether, 3,4,4′

-trichlorocarbanilide, 2-ethylhexyl p-methoxycinnamic acid, oxybenzone, 2-phenylbenzimidozole-5-sulfonic acid, dihydroxyacetone, and mixtures thereof.

20. A method of delivering the conditioning agents in the conditioning component to the surface of the skin or hair with a deposition consistency of at least 60% using the product of claim 1.

16. A disposable, single use personal care cleansing and conditioning product which, upon wetting, can be used to simultaneously cleanse and deposit conditioning agents onto the skin or hair, which product comprises:

(A) a water insoluble substrate, and

(B) a cleansing and conditioning composition comprising;

(i) at least one lathering surfactant added onto or impregnated into said substrate, and

(ii) a conditioning component added onto or impregnated into said substrate separately from said lathering surfactant, said conditioning component having a lipid hardness value of greater than about 0.02 kg,

wherein the weight ratio of the lathering surfactant to the conditioning component is less than about 20;

1, and wherein said product is substantially dry prior to use.

17. A product according to claim 16 wherein said lathering surfactant comprises from about 1% to about 75% by weight of said cleansing and conditioning composition, and said conditioning component comprises from about 5% to about 99% by weight of said cleansing and conditioning composition.

18. A method of manufacturing a disposable, single use personal care cleansing and conditioning product which, upon wetting, can be used to simultaneously cleanse and deposit conditioning agents onto the skin or hair, comprising the steps of adding

(A) at least one lathering surfactant added onto or impregnated into said substrate, and

(B) a conditioning component added onto or impregnated into said substrate separately from said lathering surfactant, having a lipid hardness value of greater than about 0.02 kg, wherein the weight ratio of the lathering surfactant to the conditioning component is less than about 20:

1, and

wherein said resulting product is substantially dry prior to use.

19. A method of manufacturing a product according to claim 18 wherein said lathering surfactant is added onto or impregnated into said substrate separately from said conditioning component by spraying, laser printing, splashing, dipping, or coating.

21. A method of cleansing and conditioning the skin or hair with a personal cleansing product which upon wetting, can be used to simultaneously cleanse and deposit conditioning agents onto the skin or hair, said method comprising the steps of:

(A) wetting with water a substantially dry, disposable, single use personal cleansing product comprising;

(i) a water insoluble substrate,

(ii) at least one lathering surfactant added onto or impregnated into said substrate, and

(iii) a conditioning component added onto or impregnated into said substrate separately from said lathering surfactant, having a lipid hardness value of greater than about 0.02 kg, wherein the weight ratio of the lathering surfactant to the conditioning component is less than about 20;

1, and

(B) contacting the skin or hair with said wetted product.