Absorbent article having a lotionized bodyside liner

• US 6,149,934 A
• Filed: 04/23/1999
• Issued: 11/21/2000
• Est. Priority Date: 04/23/1999
• Status: Active Grant

• Current Assignee: Kimberly-Clark Worldwide Incorporated (Kimberly-Clark Corporation)
• Original Assignee: Kimberly-Clark Worldwide Incorporated (Kimberly-Clark Corporation)
• Inventors: Krzysik, Duane Gerard, Musil, David Charles, Underhill, Diane Michele, Shaw, Gordon Allen, Rosch, Frank Andrew III, Hockersmith, Jeffrey Michael
• Primary Examiner(s): Page, Thurman K.
• Assistant Examiner(s): TRAN, SUSAN T
• Application Number:
  US09/298,314
• Time in Patent Office: 578 Days
• Field of Search: 604/317, 604/358, 604/363, 604/385.1, 604/385.2
• US Class Current: 424/443
• CPC Class Codes: A61L 15/34 Oils, fats, waxes or natural resins A61L15/225 takes precedence
• CPC Class Codes: A61L 15/46 Deodorants or malodour counteractants, e.g. to inhibit the formation of ammonia or bacteria
• CPC Class Codes: A61L 2300/22 Lipids, fatty acids, e.g. prostaglandins, oils, fats, waxes
• CPC Class Codes: H04L 67/02 based on web technology, e.g. hypertext transfer protocol [HTTP]
• CPC Class Codes: H04L 67/04 specially adapted for terminals or networks with limited capabilities; specially adapted for terminal portability
• CPC Class Codes: H04L 67/568 Storing data temporarily at an intermediate stage, e.g. caching
• CPC Class Codes: H04L 67/59 Providing operational support to end devices by off-loading in the network or by emulation, e.g. when they are unavailable
• CPC Class Codes: H04L 9/40 Network security protocols
• CPC Class Codes: H04M 1/72445 for supporting Internet browser applications

Abstract

An absorbent article having a bodyside liner includes a lotion formulation on the outer bodyfacing surface thereof. The lotion formulation comprises from about 5 to about 95 weight percent of an emollient, from about 5 to about 95 weight percent of a wax, and, optionally, from about 0.1 to about 25 weight percent of a viscosity enhancer. The lotion formulation has a reduced level of migration which leads to improved transfer to the skin. The lotion formulation acts as a lubricant to reduce the abrasion of the skin caused by the liner and also transfers to the skin to provide improved skin health.

Claims

1. An absorbent article comprising:

a) an outer cover,

b) a liquid permeable bodyside liner which defines a bodyfacing surface and which is connected in superposed relation to said outer cover;

c) an absorbent body which is located between said bodyside liner and said outer cover; and

d) a lotion formulation on at least a portion of said bodyfacing surface of said bodyside liner which includes from about 5 to about 95 weight percent of an emollient, from about 5 to about 95 weight percent of a wax, and from about 0.1 to about 25 weight percent of a viscosity enhancer selected from the group consisting of polyolefin resins, polyolefin polymers, polyethylene, lipophilic/oil thickeners and mixtures thereof based on a total weight of said lotion formulation.

2. The absorbent article according to claim 1 wherein said emollient is selected from the group consisting of oils, esters, glycerol esters, ethers, alkoxylated carboxylic acids, alkoxylated alcohols, fatty alcohols and mixtures thereof.

3. The absorbent article according to claim 1 wherein said emollient is a petroleum based emollient.

4. The absorbent article according to claim 1 wherein said wax is selected from the group consisting of animal based waxes, vegetable based waxes, mineral based waxes, silicone based waxes and mixtures thereof all of which may be natural or synthetic.

5. The absorbent article according to claim 1 wherein said viscosity enhancer is an ethylene vinyl acetate copolymer.

6. The absorbent article according to claim 1 wherein said viscosity enhancer increases a Viscosity of a combination of said emollient and said wax by at least about 50 percent at a temperature of 60°

C.

7. The absorbent article according to claim 1 wherein said lotion formulation defines a viscosity of from about 50 to about 10,000 centipoise at a temperature of 60°

C.

8. The absorbent article according to claim 1 wherein said lotion formulation defines a melt point viscosity of from about 50 to about 1,000,000 centipoise.

9. The absorbent article according to claim 1 wherein said lotion formulation defines a melting point of from about 30 to about 100°

C.

10. The absorbent article according to claim 1 wherein said absorbent article defines a z-direction migration loss of no more than about 55%.

11. The absorbent article according to claim 1 wherein said lotion formulation is applied to said bodyside liner at a temperature no more than about 10°

C. above a melting point of said lotion formulation to reduce migration of said lotion formulation.

12. An absorbent article comprising:

a) an outer cover;

b) a liquid permeable bodyside liner which defines a bodyfacing surface and which is connected in superposed relation to said outer cover;

c) an absorbent body which is located between said bodyside liner and said outer cover; and

d) a lotion formulation on at least a portion of said bodyfacing surface of said bodyside liner which includes an emollient wherein said absorbent article defines a z-direction migration loss of no more than about 55%.

13. The absorbent article according to claim 12 wherein said emollient is selected from the group consisting of oils, esters, glycerol esters, ethers, alkoxylated carboxylic acids, alkoxylated alcohols, fatty alcohols and mixtures thereof.

14. The absorbent article according to claim 12 wherein said emollient is a petroleum based emollient.

15. The absorbent article according to claim 12 wherein said lotion further includes a wax selected from the group consisting of animal based waxes, vegetable based waxes, mineral based waxes, silicone based waxes and mixtures thereof all of which may be natural or synthetic.

16. The absorbent article according to claim 12 wherein said lotion further includes a viscosity enhancer selected from the group consisting of polyolefins resins, polyolefin polymers, polyethylene, lipophilic/oil thickeners and mixtures thereof.

17. The absorbent article according to claim 16 wherein said viscosity enhancer increases a viscosity of a combination of said emollient and said wax by at least about 50 percent at a temperature of 60°

C.

18. The absorbent article according to claim 12 wherein said lotion formulation defines a viscosity of from about 50 to about 10,000 centipoise at a temperature of 60°

C.

19. The absorbent article according to claim 12 wherein said lotion formulation defines a melt point viscosity of from about 50 to about 1,000,000 centipoise.

20. The absorbent article according to claim 12 wherein said lotion formulation defines a melting point of from about 30 to about 100°

C.

21. The absorbent article according to claim 12 wherein absorbent article defines a cd-direction migration loss of no more than about 40%.

22. The absorbent article according to claim 21 wherein said z-direction migration loss of said absorbent article is no more than about 50% and said cd-direction migration loss is no more than about 35%.

23. The absorbent article according to claim 12 wherein said lotion formulation is applied to said bodyside liner at a temperature no more than about 10°

C. above a melting point of said lotion formulation to reduce migration of said lotion formulation.

24. The absorbent article according to claim 12 wherein said lotion formulation is applied to said bodyside liner at a temperature no more than about 5°

C. above a melting point of said lotion formulation to reduce migration of said lotion formulation.

25. An absorbent article comprising:

a) an outer cover;

b) a liquid permeable bodyside liner which defines a bodyfacing surface and which is connected in superposed relation to said outer cover;

c) an absorbent body which is located between said bodyside liner and said outer cover; and

d) a lotion formulation on at least a portion of said bodyfacing surface of said bodyside liner which includes

i) from about 5 to about 95 weight percent of petrolatum based on a total weight of said lotion formulation;

ii) from about 5 to about 95 weight percent of a wax selected from the group consisting of animal based waxes, vegetable based waxes, mineral based waxes, silicone based waxes and mixtures thereof all of which may be natural or synthetic based on said total weight of said lotion formulation; and

iii) from about 0.1 to about 25 weight percent of a polyolefin resin based on said total weight of said lotion formulation.

26. The absorbent article according to claim 25 wherein said wax is a mixture of cerasin, microcrystalline wax, paraffin, and cetyl esters.

27. The absorbent article according to claim 25 wherein said polyolefin resin is an ethylene vinyl acetate copolymer.

28. The absorbent article according to claim 25 wherein said polyolefin resin increases a viscosity of a combination of said petrolatum and said wax by at least about 50 percent at a temperature of 60°

C.

29. The absorbent article according to claim 25 wherein said lotion formulation defines a viscosity of from about 50 to about 10,000 centipoise at a temperature of 60°

C.

30. The absorbent article according to claim 25 wherein said lotion formulation defines a melt point viscosity of from about 50 to about 1,000,000 centipoise.

31. The absorbent article according to claim 25 wherein said lotion formulation defines a melting point of from about 30 to about 100°

C.

32. The absorbent article according to claim 25 wherein said absorbent article defines a z-direction migration loss of no more than about 55%.

33. The absorbent article according to claim 25 wherein said absorbent article defines a cd-direction migration loss of no more than about 40%.

34. The absorbent article according to claim 25 wherein said lotion formulation is applied to said bodyside liner at a temperature no more than about 10°

C. above a melting point of said lotion formulation to reduce migration of said lotion formulation.

35. The absorbent article according to claim 25 wherein said lotion formulation is applied to said bodyside liner at a temperature no more than about 5°

C. above a melting point of said lotion formulation to reduce migration of said lotion formulation.