Anti-microbial hand towel with time-delay chromatic transfer indicator and absorbency rate delay
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A01N-025/34
D21H-021/28
D21H-021/36
A01N-025/00
A61K-008/02
A61K-008/06
A61K-031/075
A61K-031/14
A61K-033/32
A61Q-017/00
출원번호
US-0679565
(2012-11-16)
등록번호
US-8920823
(2014-12-30)
발명자
/ 주소
Luu, Phuong Van
Awofeso, Anthony O.
Yardley, Craig D.
Yeh, Kang Chang
Janda, Bruce W.
출원인 / 주소
Georgia-Pacific Consumer Products LP
대리인 / 주소
Bozek, Laura L.
인용정보
피인용 횟수 :
0인용 특허 :
71
초록▼
A disposable paper towel with an anti-microbial lotion and is provided with a chromatic transfer indicator which undergoes a delayed, visually perceptible color change at a predetermined time after the towel is wetted. An anti-microbial lotion on the towel increases water absorbency times (WAR) to f
A disposable paper towel with an anti-microbial lotion and is provided with a chromatic transfer indicator which undergoes a delayed, visually perceptible color change at a predetermined time after the towel is wetted. An anti-microbial lotion on the towel increases water absorbency times (WAR) to further promote lotion transfer to the skin and increase lotion transfer effectiveness.
대표청구항▼
1. An anti-microbial paper towel comprising: a) a cellulosic web;b) a waterless micro-emulsion which is substantially liquid at room temperature immobilized on the web in a semi-solid or solid state and selected and applied in amounts such that it imparts a water absorption rate delay of at least ab
1. An anti-microbial paper towel comprising: a) a cellulosic web;b) a waterless micro-emulsion which is substantially liquid at room temperature immobilized on the web in a semi-solid or solid state and selected and applied in amounts such that it imparts a water absorption rate delay of at least about 25% to the cellulosic web;c) wherein the waterless micro-emulsion comprises an anti-microbial agent, a polar emollient, a non-polar emollient and a surfactant composition including a nonionic surfactant; and wherein further the waterless micro-emulsion is capable of forming an aqueous micro-emulsion upon contact with water;d) a water soluble pH balancing agent disposed on the web at a plurality of discrete pH balancing agent locations; ande) a pH-sensitive transfer indicator disposed on the web at a plurality of discrete indicator locations which are apart from the pH balancing agent locations, wherein the pH-sensitive transfer indicator is chromatically responsive to the pH balancing agent in aqueous form; and wherein further the pH balancing agent and the pH-sensitive transfer indicator are selected and applied to the web such that the pH-sensitive transfer indicator undergoes a gradual color change upon contact of the paper towel with water to indicate effective transfer of the waterless micro-emulsion, wherein the initiation of said color change is determined by the wicking time of the pH balancing agent. 2. The anti-microbial paper towel according to claim 1, wherein waterless micro-emulsion comprises polar emollient in an amount of from about 2% to about 40% by weight of the lotion emulsion. 3. The anti-microbial paper towel according to claim 1, wherein the waterless micro-emulsion comprises a polar polyhydroxy emollient selected from propylene glycol, glycol, glycerol, diethylene glycol, methylene glycol, polypropylene glycol, polyethylene glycol and sorbitol. 4. The anti-microbial paper towel according to claim 3, wherein the polar emollient is propylene glycol. 5. The anti-microbial paper towel according to claim 1, wherein the waterless micro-emulsion comprises non-polar emollient in the amount of from about 10% to about 40% by weight of the waterless micro-emulsion. 6. The anti-microbial paper towel according to claim 1, wherein the waterless micro-emulsion comprises the non-polar emollient selected from aromatic or linear esters, Guerbet ester, mineral oil, squalane, liquid paraffin, and mixtures thereof. 7. The anti-microbial paper towel according to claim 6, wherein the non-polar emollient is isopropyl myristate. 8. The anti-microbial paper towel according to claim 6, wherein the non-polar emollient is C12-C15 alkyl benzoate ester. 9. The anti-microbial paper towel according to claim 6, wherein the non-polar emollient is tri-octyldodecyl-citrate. 10. The anti-microbial paper towel according to claim 6, wherein the non-polar emollient is a mixture of C12-C15 alkyl benzoate ester and carnation oil. 11. The anti-microbial paper towel according to claim 1, wherein the surfactant composition comprises nonionic surfactant and a fatty alcohol, and the surfactant composition is present in the amount of from about 40% to about 70% by weight of the waterless micro-emulsion. 12. The anti-microbial paper towel according to claim 1, wherein the surfactant composition comprises the non-ionic surfactant selected from PEG-20 methyl glucose sesquistearate, PPG-20 methyl glucose ether, PPG-20 methyl glucose ether distearate, PEG-20 methyl glucose distearate, PEG-120 methyl glucose dioleate, ethoxylated methyl glucose having from about 10 to about 20 repeating ethoxy units, a mixture thereof and the like. 13. The anti-microbial paper towel according to claim 12, wherein the non-ionic surfactant comprises PEG-20 methyl glucose sesquistearate. 14. The anti-microbial paper towel according to claim 12, wherein the non-ionic surfactant comprises PEG-20 methyl glucose distearate. 15. The anti-microbial paper towel according to claim 1, wherein the surfactant composition comprises a co-surfactant in the amount of from about 0.1% to about 20% by weight of the waterless micro-emulsion. 16. The anti-microbial paper towel according to claim 15, wherein the surfactant composition comprises the co-surfactant selected from C12-C18 fatty alcohols, behenyl alcohol, cetyl alcohol, stearyl alcohol, iso-cetyl alcohol, and iso-stearyl alcohol. 17. The anti-microbial paper towel according to claim 15, wherein the co-surfactant is myristyl alcohol. 18. The anti-microbial paper towel according to claim 15, wherein the co-surfactant is a mixture of cetyl alcohol (C16) and stearyl alcohol (C18).
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