Absorbent pad with activated carbon ink for odor control
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61F-013/15
A61F-013/20
A61M-001/00
출원번호
UP-0194102
(2005-07-29)
등록번호
US-7655829
(2010-03-31)
발명자
/ 주소
MacDonald, John Gavin
Fish, Jeffrey E.
Greene, Sharon Linda
Kim, Jaeho
출원인 / 주소
Kimberly-Clark Worldwide, Inc.
대리인 / 주소
Dority & Manning, P.A.
인용정보
피인용 횟수 :
4인용 특허 :
184
초록▼
An absorbent pad configured for placement under a patient to absorb bodily fluids includes a liquid permeable cover layer, a liquid impermeable back sheet, and an absorbent structure disposed between the cover layer and the back sheet. At least one of the cover layer, back sheet, or absorbent struct
An absorbent pad configured for placement under a patient to absorb bodily fluids includes a liquid permeable cover layer, a liquid impermeable back sheet, and an absorbent structure disposed between the cover layer and the back sheet. At least one of the cover layer, back sheet, or absorbent structure incorporates a dried application of a liquid activated carbon ink having activated carbon, a binder, and a solvent, with the dried application of ink having a solids add-on level of at least about 2%. The activated carbon ink is applied in a pattern over between about 25% to about 95% of a total upper surface area of the pad and presents a visually contrasting color against a background color of the pad or a contrasting ink.
대표청구항▼
What is claimed is: 1. An absorbent pad configured to absorb fluids and control odors, said pad comprising: a liquid-permeable cover layer, a liquid-impermeable back sheet, and an absorbent structure disposed between said cover layer and said back sheet; at least one of said cover layer, said back
What is claimed is: 1. An absorbent pad configured to absorb fluids and control odors, said pad comprising: a liquid-permeable cover layer, a liquid-impermeable back sheet, and an absorbent structure disposed between said cover layer and said back sheet; at least one of said cover layer, said back sheet, or said absorbent structure incorporating a dried application of a liquid activated carbon ink having activated carbon, a binder, and a solvent, said dried application of said ink having a solids add-on level of at least about 2%, said activated carbon ink applied in a first pattern over between about 25% to about 95% of a total upper surface area of said pad, said dried activated carbon ink presenting a visually contrasting color against a background color of said pad; a dried application of an additional ink applied in a second pattern on at least one of said cover layer, said back sheet, or said absorbent structure so as to present a visually distinguishing pattern against the background color of said pad when viewed from said cover layer, said additional ink also presenting a color that is visually distinguishable from the color of said activated carbon ink; wherein said first pattern of activated carbon ink and said second pattern of additional ink are visually distinguishable from each other, and are both visually distinguishable against the background color of said pad, and wherein said additional ink comprises activated carbon in a formulation so as to be configured to reduce one type of odor while said activated carbon ink is configured to reduce another type of odor. 2. The pad as in claim 1, wherein said activated carbon is present in an amount from about 1 wt. % to about 50 wt. % of said liquid activated carbon ink. 3. The pad as in claim 1, wherein said binder is present in an amount from about 0.01 wt. % to about 30 wt. % of said liquid activated carbon ink. 4. The pad as in claim 1, wherein said solvent is present in an amount from about 40 wt. % to about 99 wt. % of said liquid activated carbon ink. 5. The pad as in claim 1, wherein said pattern of dried activated carbon ink covers from about 30% to about 90% of said surface area. 6. The pad as in claim 1, wherein the contrast between the color of said dried activated carbon ink and said background color has a minimum gray scale value of at least about 45 on a scale of 0-255. 7. The pad as in claim 1, wherein said liquid activated carbon ink and said additional ink are applied in an at least partially overlapping relationship. 8. The pad as in claim 1, wherein said liquid activated carbon ink and said additional ink are applied in a non-overlapping relationship. 9. The pad as in claim 1, wherein said liquid activated carbon ink is applied to only one of said cover layer, said back sheet, or said absorbent structure. 10. The pad as in claim 1, wherein said liquid activated carbon ink is applied to at least two of said cover layer, said back sheet, or said absorbent structure. 11. The pad as in claim 10, wherein said liquid activated carbon ink is applied in overlapping regions of said cover layer, said back sheet, or said absorbent structure. 12. The pad as in claim 1, wherein said liquid activated carbon ink is applied at an add-on level of between about 3 to about 10 gsm. 13. The pad as in claim 1, wherein said liquid activated carbon ink is applied at an add-on level of between about 3 to about 6 gsm. 14. The pad as in claim 1, wherein said pad is a bed pad configured for placement under a patient to absorb bodily exudates and fluids. 15. The pad as in claim 1, wherein said liquid activated carbon ink is present in an amount sufficient for decreasing at least by half odor intensity from any one of the group of pet odors, cigarette odor, smoke, foods, and animal odors. 16. The pad as in claim 1, wherein said liquid activated carbon ink and said additional ink are applied to different ones of said cover layer, said back sheet, or said absorbent structure. 17. The pad as in claim 1, wherein said liquid activated carbon ink and said additional ink are applied to the same one of said cover layer, said back sheet, or said absorbent structure. 18. The pad as in claim 17, wherein said liquid activated carbon ink is applied in said first pattern directly onto said second pattern of additional ink. 19. The pad as in claim 17, wherein said additional ink is applied in said second pattern directly onto said first pattern of dried application of liquid activated carbon ink.
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