Supersaturated solutions using crystallization enthalpy to impart temperature change to wet wipes
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B32B-003/26
B32B-027/04
출원번호
UP-0747036
(2007-05-10)
등록번호
US-7517582
(2009-07-01)
발명자
/ 주소
Amundson, John David
Abuto, Frank P.
Jackson, David Martin
Day, Jenny L.
출원인 / 주소
Kimberly Clark Worldwide, Inc.
대리인 / 주소
Armstrong Teasdale LLP
인용정보
피인용 횟수 :
2인용 특허 :
155
초록▼
Personal care products comprising supersaturated solutions and core compositions comprising activation means are disclosed. In one embodiment, a core composition comprising the activation means is surrounded by an encapsulation layer. The core composition comprising the activation means may be intro
Personal care products comprising supersaturated solutions and core compositions comprising activation means are disclosed. In one embodiment, a core composition comprising the activation means is surrounded by an encapsulation layer. The core composition comprising the activation means may be introduced into wet wipes such that, upon rupture and contact between the supersaturated solution and the activation means, the wet wipe solution is warmed resulting in a warm sensation on a user's skin. Any number of other active ingredients, such as biocides, can also be incorporated into the personal care product.
대표청구항▼
What is claimed is: 1. A wet wipe comprising a basesheet material, a first filler-free fluid-impermeable pouch comprising a composition comprising a supersaturated solution, and a second filler-free fluid-impermeable pouch comprising a core composition comprising an activation means. 2. The wet w
What is claimed is: 1. A wet wipe comprising a basesheet material, a first filler-free fluid-impermeable pouch comprising a composition comprising a supersaturated solution, and a second filler-free fluid-impermeable pouch comprising a core composition comprising an activation means. 2. The wet wipe as set forth in claim 1 wherein the first filler-free fluid-impermeable pouch and second filler-free fluid-impermeable pouch are connected by a frangible seal. 3. The wet wipe as set forth in claim 1 wherein the first filler-free fluid-impermeable pouch and second filler-free fluid-impermeable pouch independently comprise a filler-free film material selected from the group consisting of polypropylene, polyethylene, polyester, copolymers of polypropylene and polyethylene, and polylactic acid. 4. The wet wipe as set forth in claim 1 wherein the supersaturated solution has a crystallization temperature within the range of from about 25° C. to about 90° C. 5. The wet wipe as set forth in claim 1 wherein the supersaturated solution is a supersaturated salt solution prepared from an aqueous solution of a salt, the salt being selected from the group consisting of sodium acetate, sodium sulfate, sodium thiosulfate, potash alum, calcium nitrate, potassium acetate, ammonium nitrate, potassium nitrate, lithium acetate, magnesium acetate, chromium alum, sodium carbonate, magnesium sulfate, sodium borate, sodium bromide, sodium chromate, calcium chloride, magnesium chloride, magnesium nitrate, disodium phosphate, urea nitrate, and hydrates thereof. 6. The wet wipe as set forth in claim 1 wherein the supersaturated solution is a supersaturated sugar solution prepared from an aqueous solution of a sugar, the sugar being xylitol. 7. The wet wipe as set forth in claim 1 wherein the composition further comprises a plasticizer. 8. The wet wipe as set forth in claim 7 wherein the composition further comprises an emulsifying agent in combination with the plasticizer. 9. The wet wipe as set forth in claim 1 wherein the activation means is selected from the group consisting of sodium acetate, sodium sulfate, sodium sulfate decahydrate, sodium thiosulfate, potash alum, calcium nitrate, potassium acetate, ammonium nitrate, potassium nitrate, lithium acetate, magnesium acetate, chromium alum, sodium carbonate, magnesium sulfate, sodium borate, sodium bromide, xylitol, sodium chromate, calcium chloride, magnesium chloride, magnesium nitrate, disodium phosphate, urea nitrate, and hydrates thereof. 10. The wet wipe as set forth in claim 1 wherein upon contact between the supersaturated solution and the activation means, the temperature of the wet wipe is increased by at least about 5° C. in less than about 20 seconds. 11. The wet wipe as set forth in claim 1 wherein the composition is a gelled composition and the gelled composition comprises a gelling agent in combination with the supersaturated solution. 12. The wet wipe as set forth in claim 11 wherein the gelling agent is selected from the group consisting of fumed silica and laponite clay. 13. A wet wipe comprising a fibrous sheet material comprising a composition, the composition comprising a supersaturated solution; and a core composition surrounded by an encapsulation layer, the core composition comprising a matrix material and an activation means, and wherein the fibrous sheet material is entrapped between a first filler-free fluid-impermeable layer and a second filler-free fluid-impermeable layer. 14. The wet wipe as set forth in claim 13 wherein the supersaturated solution has a crystallization temperature within the range of from about 25° C. to about 90° C. 15. The wet wipe as set forth in claim 13 wherein the supersaturated solution is a supersaturated salt solution prepared from an aqueous solution of a salt, the salt being selected from the group consisting of sodium acetate, sodium sulfate, sodium thiosulfate, potash alum, calcium nitrate, potassium acetate, ammonium nitrate, potassium nitrate, lithium acetate, magnesium acetate, chromium alum, sodium carbonate, magnesium sulfate, sodium borate, sodium bromide, sodium chromate, calcium chloride, magnesium chloride, magnesium nitrate, disodium phosphate, urea nitrate, and hydrates thereof. 16. The wet wipe as set forth in claim 13 wherein the supersaturated solution is a supersaturated sugar solution prepared from an aqueous solution of a sugar, the sugar being xylitol. 17. The wet wipe as set forth in claim 13 wherein the fibrous sheet material comprises a nonwoven selected from the group consisting of a meltblown material, a coform material, an air-laid material, a bonded-carded web material, a hydroentangled material, and combinations thereof. 18. The wet wipe as set forth in claim 13 wherein the activation means is selected from the group consisting of sodium acetate, sodium sulfate, sodium sulfate decahydrate, sodium thiosulfate, potash alum, calcium nitrate, potassium acetate, ammonium nitrate, potassium nitrate, lithium acetate, magnesium acetate, chromium alum, sodium carbonate, magnesium sulfate, sodium borate, sodium bromide, xylitol, sodium chromate, calcium chloride, magnesium chloride, magnesium nitrate, disodium phosphate, urea nitrate, and hydrates thereof. 19. The wet wipe as set forth in claim 13 wherein upon contact between the supersaturated solution and the activation means, the temperature of the wet wipe is increased by at least about 5° C. in less than about 20 seconds. 20. The wet wipe as set forth in claim 13 further comprising a moisture protective layer surrounding the encapsulation layer and a fugitive layer surrounding the moisture protective layer.
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