Methods of cleansing skin or hair with cleansing articles

• US 7,348,018 B2
• Filed: 11/18/2004
• Issued: 03/25/2008
• Est. Priority Date: 05/22/1997
• Status: Expired due to Fees

• Current Assignee: The Procter & Gamble Company
• Original Assignee: The Procter & Gamble Company
• Inventors: McAtee, David M., Hasenoehrl, Erik J.
• Primary Examiner(s): VENKAT, JYOTHSNA A
• Application Number:
  US10/991,627
• Publication Number:
  US 20050075255A1
• Time in Patent Office: 1,223 Days
• Field of Search: None
• US Class Current: 424/402
• 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: A61K 8/73 Polysaccharides
• CPC Class Codes: A61Q 19/10 Washing or bathing preparations
• CPC Class Codes: A61Q 5/02 Preparations for cleaning the hair
• CPC Class Codes: Y10T 428/249962 Void-containing component has a continuous matrix of fibers only [e.g., porous paper, etc.]
• CPC Class Codes: Y10T 442/20 Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
• CPC Class Codes: Y10T 442/2525 Coating or impregnation functions biologically [e.g., insect repellent, antiseptic, insecticide, bactericide, etc.]

Abstract

The present invention relates to disposable, personal cleansing articles useful for cleansing the skin or hair. These articles are used by the consumer by wetting the dry article with water and then rubbing the article against the skin or hair. The article comprises a water insoluble substrate having a cleansing surface that contains apertures of a certain size and frequency, and a lathering surfactant releasably associated with the substrate. Preferably, the articles of the present invention further comprise a conditioning component.

Claims

1. A method of cleansing skin or hair, said method comprising the steps of:

(a) wetting a cleansing article with water;

wherein said cleansing article comprises;

(i) a water-insoluble, nonwoven substrate comprising a plurality of apertures, said apertures having an average diameter of from about 0.5 mm to about 5 mm; and

(ii) from about 0.5% to about 250%, by weight of said substrate, of a lathering surfactant; and

(b) contacting said skin or hair with said cleansing article.

2. The method of claim 1, wherein said method further comprises generating lather.

3. The method of claim 2, wherein said lather is generated by mechanically agitating or deforming said cleansing article.

4. The method of claim 1, wherein said method further comprises rinsing said skin or hair with water.

5. The method of claim 1, wherein said method further comprises discarding said cleansing article after one use.

6. The method of claim 1, wherein said average diameter of said apertures is from about 1 mm to about 4 mm.

7. The method of claim 1, wherein said apertures are located within said substrate at a frequency of from about 0.5 to about 12 apertures per linear centimeter.

8. The method of claim 7, wherein said apertures are located within said substrate at a frequency of from about 1.5 to about 6 apertures per linear centimeter.

9. The method of claim 1, wherein said water-insoluble, nonwoven substrate has a basis weight of from about 24 to about 96 gsm.

10. The method of claim 9, wherein said water-insoluble, nonwoven substrate has a basis weight of from about 36 to about 84 gsm.

11. The method of claim 10, wherein said water-insoluble, nonwoven substrate has a basis weight of from about 42 to about 78 gsm.

12. The method of claim 1, wherein said water-insoluble, nonwoven substrate comprises fibers selected from the group consisting of polyester, rayon, and mixtures thereof.

13. The method of claim 1, wherein said water-insoluble, nonwoven substrate is a single layer substrate.

14. The method of claim 1, wherein said water-insoluble, nonwoven substrate is hydroentangled.

15. The method of claim 1, wherein said cleansing article is substantially dry prior to said step of wetting said cleansing article with water.

16. The method of claim 1, wherein said cleansing article comprises less than about 10%, by weight of said substrate, of water prior to said step of wetting said cleansing article with water.

17. The method of claim 1, wherein said cleansing article is capable of generating an Average Lather Volume of greater than or equal to about to 30 ml upon wetting.

18. The method of claim 17, wherein said cleansing article is capable of generating an Average Lather Volume of greater than or equal to about 50 ml upon wetting.

19. The method of claim 18, wherein said cleansing article is capable of generating an Average Lather Volume of greater than or equal to about 75 ml upon wetting.

20. The method of claim 19, wherein said cleansing article is capable of generating an Average Lather Volume of greater than or equal to about 150 ml upon wetting.

21. The method of claim 1, wherein said cleansing article comprises from about 1% to about 250%, by weight of said substrate, of said lathering surfactant.

22. The method of claim 21, wherein said cleansing article comprises from about 10% to about 250%, by weight of said substrate, of said lathering surfactant.

23. The method of claim 1, wherein said lathering surfactant is selected from the group consisting of alkyl glucoside, cocamidopropyl betaine, sodium lauroyl sarcosinate, sodium lauroyl lactylate, sodium laureth sulfate, and mixtures thereof.

24. The method of claim 1, wherein said lathering surfactant is releasably associated with said substrate.

25. The method of claim 1, wherein said cleansing article further comprises a conditioning component.

26. The method of claim 25, wherein said cleansing article comprises from about 0.05% to about 99%, by weight of said substrate, of said conditioning component.

27. The method of claim 26, wherein said cleansing article comprises from about 0.1% to about 50%, by weight of said substrate, of said conditioning component.

28. The method of claim 27, wherein said cleansing article comprises from about 1% to about 25%, by weight of said substrate, of said conditioning component.

29. The method of claim 25, wherein said conditioning component comprises a material selected from the group consisting of petrolatum, glycerin, cholesterol, urea, butylene glycol, propylene glycol, and mixtures thereof.

30. The method of claim 1, wherein said cleansing article further comprises a material selected from the group consisting of polyquaternium-10, vitamin E acetate, fragrance, methyl glucose dioleate, disodium EDTA, methylparaben, propylparaben, colorant, and mixtures thereof.

31. A method of cleansing skin or hair, said method comprising the steps of:

(a) wetting a cleansing article with water, wherein said cleansing article comprises;

(i) a water-insoluble, nonwoven substrate comprising a plurality of apertures, said apertures having an average diameter of from about 0.5 mm to about 5 mm; and

(ii) from about 0.5% to about 250%, by weight of said substrate, of a lathering surfactant;

(b) generating lather;

(c) contacting said skin or hair with said cleansing article;

(d) rinsing said skin or hair with water; and

(e) discarding said cleansing article after one use.

32. The method of claim 31, wherein said lather is generated by mechanically agitating or deforming said cleansing article.

33. The method of claim 31, wherein said average diameter of said apertures is from about 1 mm to about 4 mm.

34. The method of claim 31, wherein said apertures are located within said substrate at a frequency of from about 0.5 to about 12 apertures per linear centimeter.

35. The method of claim 34, wherein said apertures are located within said substrate at a frequency of from about 1.5 to about 6 apertures per linear centimeter.

36. The method of claim 31, wherein said water-insoluble, nonwoven substrate has a basis weight of from about 24 to about 96 gsm.

37. The method of claim 36, wherein said water-insoluble, nonwoven substrate has a basis weight of from about 36 to about 84 gsm.

38. The method of claim 37, wherein said water-insoluble, nonwoven substrate has a basis weight of from about 42 to about 78 gsm.

39. The method of claim 31, wherein said water-insoluble, nonwoven substrate comprises fibers selected from the group consisting of polyester, rayon, and mixtures thereof.

40. The method of claim 31, wherein said water-insoluble, nonwoven substrate is a single layer substrate.

41. The method of claim 31, wherein said water-insoluble, nonwoven substrate is hydroentangled.

42. The method of claim 31, wherein said cleansing article is substantially dry prior to said step of wetting said cleansing article with water.

43. The method of claim 31, wherein said cleansing article comprises less than about 10%, by weight of said substrate, of water prior to said step of wetting said cleansing article with water.

44. The method of claim 31, wherein said cleansing article is capable of generating an Average Lather Volume of greater than or equal to about to 30 ml upon wetting.

45. The method of claim 44, wherein said cleansing article is capable of generating an Average Lather Volume of greater than or equal to about 50 ml upon wetting.

46. The method of claim 45, wherein said cleansing article is capable of generating an Average Lather Volume of greater than or equal to about 75 ml upon wetting.

47. The method of claim 46, wherein said cleansing article is capable of generating an Average Lather Volume of greater than or equal to about 150 ml upon wetting.

48. The method of claim 31, wherein said cleansing article comprises from about 1% to about 250%, by weight of said substrate, of said lathering surfactant.

49. The method of claim 48, wherein said cleansing article comprises from about 10% to about 250%, by weight of said substrate, of said lathering surfactant.

50. The method of claim 31, wherein said lathering surfactant is selected from the group consisting of alkyl glucoside, cocamidopropyl betaine, sodium lauroyl sarcosinate, sodium lauroyl lactylate, sodium laureth sulfate, and mixtures thereof.

51. The method of claim 31, wherein said lathering surfactant is releasably associated with said substrate.

52. The method of claim 31, wherein said cleansing article further comprises a conditioning component.

53. The method of claim 52, wherein said cleansing article comprises from about 0.05% to about 99%, by weight of said substrate, of said conditioning component.

54. The method of claim 53, wherein said cleansing article comprises from about 0.1% to about 50%, by weight of said substrate, of said conditioning component.

55. The method of claim 54, wherein said cleansing article comprises from about 1% to about 25%, by weight of said substrate, of said conditioning component.

56. The method of claim 52, wherein said conditioning component comprises a material selected from the group consisting of petrolatum, glycerin, cholesterol, urea, butylene glycol, propylene glycol, and mixtures thereof.

57. The method of claim 31, wherein said cleansing article further comprises a material selected from the group consisting of polyquaternium-10, vitamin E acetate, fragrance, methyl glucose dioleate, disodium EDTA, methylparaben, propylparaben, colorant, and mixtures thereof.

58. A method of cleansing skin or hair, said method comprising the steps of:

(a) wetting a cleansing article with water, wherein said cleansing article comprises;

(i) a water-insoluble, nonwoven substrate comprising a plurality of apertures, said apertures having an average diameter of from about 0.5 mm to about 5 mm;

(ii) from about 0.5% to about 250%, by weight of said substrate, of a lathering surfactant selected from the group consisting of alkyl glucoside, cocamidopropyl betaine, sodium lauroyl sarcosinate, sodium lauroyl lactylate, sodium laureth sulfate, and mixtures thereof; and

(iii) glycerin;

(b) generating lather;

(c) contacting said skin or hair with said cleansing article;

(d) rinsing said skin or hair with water; and

(e) discarding said cleansing article after one use.

59. The method of claim 58, wherein said article further comprises a material selected from the group consisting of polyquaternium-10, vitamin E acetate, cholesterol, urea, fragrance, butylene glycol, methyl glucose dioleate, disodium EDTA, propylene glycol, methylparaben, propylparaben, colorant, and mixtures thereof.

60. The method of claim 58, wherein said lathering surfactant is alkyl glucoside, cocamidopropyl betaine, sodium lauroyl sarcosinate, and sodium lauroyl lactylate;

and wherein said article further comprises polyquaternium-10, vitamin E acetate, cholesterol, urea, fragrance, and butylene glycol.

61. The method of claim 60, wherein said average diameter of said apertures is from about 1 mm to about 4 mm.

62. The method of claim 60, wherein said water-insoluble, nonwoven substrate comprises fibers selected from the group consisting of polyester, rayon, and mixtures thereof.

63. The method of claim 60, wherein said water-insoluble, nonwoven substrate is a single layer substrate.

64. The method of claim 60, wherein said water-insoluble, nonwoven substrate is hydroentangled.

65. The method of claim 60, wherein said cleansing article is substantially dry prior to said step of wetting said cleansing article with water.

66. The method of claim 60, wherein said cleansing article comprises less than about 10%, by weight of said substrate, of water prior to said step of wetting said cleansing article with water.

67. The method of claim 60, wherein said cleansing article is capable of generating an Average Lather Volume of greater than or equal to about 75 ml upon wetting.

68. The method of claim 60, wherein said cleansing article comprises from about 10% to about 250%, by weight of said substrate, of said lathering surfactant.

69. The method of claim 58, wherein said lathering surfactant is alkyl glucoside, cocamidopropyl betaine, and sodium laureth sulfate;

and wherein said article further comprises fragrance, methyl glucose dioleate, disodium EDTA, propylene glycol, methylparaben, propylparaben, and colorant.

70. The method of claim 69, wherein said average diameter of said apertures is from about 1 mm to about 4 mm.

71. The method of claim 69, wherein said water-insoluble, nonwoven substrate comprises fibers selected from the group consisting of polyester, rayon, and mixtures thereof.

72. The method of claim 69, wherein said water-insoluble, nonwoven substrate is a single layer substrate.

73. The method of claim 69, wherein said water-insoluble, nonwoven substrate is hydroentangled.

74. The method of claim 69, wherein said cleansing article is substantially dry prior to said step of wetting said cleansing article with water.

75. The method of claim 69, wherein said cleansing article comprises less than about 10%, by weight of said substrate, of water prior to said step of wetting said cleansing article with water.

76. The method of claim 69, wherein said cleansing article is capable of generating an Average Lather Volume of greater than or equal to about to 75 ml upon wetting.

77. The method of claim 69, wherein said cleansing article comprises from about 10% to about 250%, by weight of said substrate, of said lathering surfactant.

78. The method of claim 58, wherein said lathering surfactant is sodium laureth sulfate;

and wherein said article further comprises fragrance, disodium EDTA, and methylparaben.

79. The method of claim 78, wherein said average diameter of said apertures is from about 1 mm to about 4 mm.

80. The method of claim 78, wherein said water-insoluble, nonwoven substrate comprises fibers selected from the group consisting of polyester, rayon, and mixtures thereof.

81. The method of claim 78, wherein said water-insoluble, nonwoven substrate is a single layer substrate.

82. The method of claim 78, wherein said water-insoluble, nonwoven substrate is hydroentangled.

83. The method of claim 78, wherein said cleansing article is substantially dry prior to said step of wetting said cleansing article with water.

84. The method of claim 78, wherein said cleansing article comprises less than about 10%, by weight of said substrate, of water prior to said step of wetting said cleansing article with water.

85. The method of claim 78, wherein said cleansing article is capable of generating an Average Lather Volume of greater than or equal to about to 75 ml upon wetting.

86. The method of claim 78, wherein said cleansing article comprises from about 10% to about 250%, by weight of said substrate, of said lathering surfactant.