Cleansing products

• US 5,972,361 A
• Filed: 10/25/1996
• Issued: 10/26/1999
• Est. Priority Date: 10/25/1996
• Status: Expired due to Term

• Current Assignee: The Procter & Gamble Company
• Original Assignee: The Procter & Gamble Company
• Inventors: Hasenoehrl, Erik John, Albacarys, Lourdes Dessus, Fowler, Timothy John
• Primary Examiner(s): VENKAT, JYOTHSNA A
• Application Number:
  US08/738,194
• Time in Patent Office: 1,096 Days
• Field of Search: 424/401, 424/402, 424/70.19, 424/447, 424/70.21, 424/70.22, 424/70.31
• US Class Current: 424/402
• CPC Class Codes: A61K 8/0208 Tissues; Wipes; Patches
• CPC Class Codes: A61P 17/00 Drugs for dermatological disorders
• CPC Class Codes: A61Q 19/10 Washing or bathing preparations
• 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 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 an oil soluble conditioning agent. 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 comprising:

(A) a water insoluble substrate comprising a nonwoven sheet of fibers selected from the group consisting of rayon fibers, cellulose fibers, polyester fibers, and mixtures thereof;

(B) a lathering surfactant component impregnated into said substrate, which surfactant component further comprises from about 0.5% to about 12.5% by weight of said substrate and which comprises anionic lathering surfactants 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;

nonionic lathering surfactants selected from the group consisting of lauramine oxide, cocoamine oxide, decyl polyglucose, lauryl polyglucose, sucrose cocoate, C_12-14 glucose amides, sucrose laurate, and mixtures thereof;

or amphoteric lathering surfactants selected from the group consisting of disodium lauroamphodiacetate, sodium lauroamphoacetate, cetyl dimethyl betaine, cocoamidopropyl betaine, cocoamidopropyl hydroxy sultaine, and mixtures thereof; and

(C) an oil soluble conditioning agent component impregnated into said substrate separately from said lathering surfactant component, which oil soluble conditioning agent component comprises from about 1% to about 99% by weight of said substrate and wherein said oil soluble conditioning agents is selected from the group consisting of esters of fatty acids, polyol polyester, glycerin mono-esters, glycerin di-ester, glycerin tri-esters, epidermal and sebaceous hydrocarbons lanolin, mineral oil, silicone oil, silicone gum, vegetable oil, vegetable oil adduct, petrolatum, nonionic polymers, and mixtures thereof,

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

1; and

wherein said cleansing product deposits greater than about 2.5 μ

g/cm² of said oil soluble conditioning agents to the surface of the skin or hair, and wherein said product is substantially dry.

2. A product according to claim 1 wherein said water insoluble substrate comprises two or more sheets of fibers each in turn having different textures.

3. 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-steroidal anti-inflammatory actives, topical anesthetics, artificial tanning agents and accelerators, anti-microbial and anti-fungal agents, sunscreen actives, anti-oxidants and mixtures thereof.

4. A product according to claim 3 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-phenylbenzimidazole-5-sulfonic acid, dihydroxyacetone, and mixtures thereof.

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

6. A method of manufacturing a disposable, single use personal care cleansing and conditioning product comprising the step of separately impregnating into a water insoluble substrate comprising a nonwoven sheet of fibers selected from the group consisting of rayon fibers, cellulose fibers, polyester fibers, and mixtures thereof:

(A) a lathering surfactant component which comprises anionic lathering surfactants 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 laurel sulfate, ammonium cocoyl isethionate, sodium cocoyl isethionate, sodium lauroyl isethionate, sodium cetyl sulfate, and mixtures thereof;

nonionic lathering surfactants selected from the group consisting of lauramine oxide, cocoamine oxide, decyl polyglucose, lauryl polyglucose, C_12-14 glucose amides, sucrose cocoate, sucrose laurate, and mixtures thereof;

or amphoteric lathering surfactants selected from the group consisting of disodium lauroamphodiacetate, sodium lauroamphoacetate, cetyl dimethyl betaine, cocoamidopropyl betaine, cocoamidopropyl hydroxy sultaine, and mixtures thereof, and

(B) an oil soluble conditioning agent component which comprises oil soluble conditioning agents selected from the group consisting of esters of fatty acids, polyol polyesters, glycerin mono-esters, glycerin di-esters, glycerin tri-esters, epidermal and sebaceous hydrocarbons, lanolin, mineral oil, silicone oil, silicone gum, vegetable oil, adduct, petrolatum, nonionic polymers and mixtures thereof,

wherein said lathering surfactant component comprises from about 0.5% to about 12.5% by weight of said substrate and said oil soluble conditioning agent component comprises from about 1% to about 99% by weight of said substrate, wherein the weight ratio of the lathering surfactant component to the oil soluble conditioning agent component is less than about 20;

1, wherein said cleansing product deposits greater than about 2.5 μ

g/cm² of said oil soluble conditioning agents to the surface of the skin or hair, and wherein said resulting product is substantially dry.

7. A method of manufacturing a product according to claim 6 wherein the lathering surfactant and the oil soluble conditioning agent are separately impregnated into the water insoluble substrate by spraying, laser printing, splashing, dipping, or coating.

8. A method of cleansing and conditioning the skin or hair with a personal cleansing product comprising the steps of:

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

(i) a water insoluble substrate comprising a nonwoven sheet of fibers selected from the group consisting of rayon fibers, cellulose fibers, polyester fibers, and mixtures thereof;

(ii) a lathering surfactant component impregnated into said substrate, which surfactant component comprises from about 0.5% to about 12.5% by weight of said substrate and which further comprises anionic lathering surfactants 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;

nonionic lathering surfactants selected from the group consisting of lauramine oxide, cocoamine oxide, decyl polyglucose, lauryl polyglucose, sucrose cocoate, C_12-14 glucose amides, sucrose laurate, and mixtures thereof; and

amphoteric lathering surfactants selected from the group consisting of disodium lauroamphodiacetate, sodium lauroamphoacetate, cetyl dimethyl betaine, cocoamidopropyl betaine, cocoamidopropyl hydroxy sultaine, and mixtures thereof; and

(iii) an oil soluble conditioning agent component impregnated into said substrate separately from said lathering surfactant component, which oil soluble conditioning agent component comprises from about 1% to about 99% by weight of said substrate and which comprises oil soluble conditioning agents is selected from the group consisting of esters of fatty acids, polyol polyesters, glycerin mono-esters, glycerin di-esters, glycerin tri-ester, epidermal and sebaceous hydrocarbons, lanolin, mineral oil, silicone oil, silicone gum, vegetable oil, vegetable oil adduct, petrolatum, nonionic polymers, and mixtures thereof,

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

1, and

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

wherein said cleansing product deposits greater than about 2.5 μ

g/cm² of said oil soluble conditioning agent to the surface of the skin or hair.