Self-indicating wipe for removing bacteria from a surface
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A01N-059/06
A01N-059/16
A01N-025/34
A01P-001/00
A61L-002/28
A47L-013/16
A61L-002/238
출원번호
US-0955696
(2007-12-13)
등록번호
US-8871232
(2014-10-28)
발명자
/ 주소
Martin, Stephanie M.
MacDonald, John Gavin
Do, Bao Trong
출원인 / 주소
Kimberly-Clark Worldwide, Inc.
대리인 / 주소
Dority & Manning, P.A.
인용정보
피인용 횟수 :
0인용 특허 :
108
초록▼
A wipe that includes a bacteriostatic agent that contains cations having an affinity for the negatively charged cell walls of bacteria is provided. The affinity of the bacteriostatic agent for the bacteria allows the wipe to capture bacteria, thereby removing them from a surface and also inhibiting
A wipe that includes a bacteriostatic agent that contains cations having an affinity for the negatively charged cell walls of bacteria is provided. The affinity of the bacteriostatic agent for the bacteria allows the wipe to capture bacteria, thereby removing them from a surface and also inhibiting their spread to other surfaces that may contact the wipe. Of particular advantage, the bacteriostatic agent may help protect against the spread or infection of pathogens without the use of chemicals, such as antiseptics or antibiotics. Still further, the wipe of the present invention also contains a solvatochromatic indicator that undergoes a color change in the presence of a broad spectrum of bacteria. Thus, when the wipe captures bacteria, the indicator undergoes a color change that signals to the user that the wipe is functioning properly. The lack of a color change may likewise provide the user with the assurance that the area is generally free of bacteria and clean.
대표청구항▼
1. A wipe for use in removing bacteria from a surface, the wipe comprising a nonwoven web that includes absorbent fibers, the web being treated with at least one bacteriostatic agent and at least one zwitterionic solvatochromatic indicator, wherein the bacteriostatic agent includes an aluminum chlor
1. A wipe for use in removing bacteria from a surface, the wipe comprising a nonwoven web that includes absorbent fibers, the web being treated with at least one bacteriostatic agent and at least one zwitterionic solvatochromatic indicator, wherein the bacteriostatic agent includes an aluminum chlorohydrate having cations with an affinity for the negatively charged cell walls of the bacteria that enables the bacteriostatic agent to capture bacteria from the surface, wherein the bacteriostatic agent is applied to a surface of the wipe, wherein the indicator is applied over the bacteriostatic agent, and wherein the indicator is present on a surface of the wipe in a pattern that covers from 5% to 95% of the surface so that a visible pattern is detectable in the presence of the bacteria, wherein the detected visible pattern signals to a user that the bacteriostatic agent is capturing bacteria. 2. The wipe of claim 1, wherein the zwitterionic indicator includes a merocyanine dye. 3. The wipe of claim 2, wherein the merocyanine dye has the following structure: 4. The wipe of claim 1, wherein the zwitterionic indicator includes an N-phenolate betaine dye. 5. The wipe of claim 4, wherein the N-phenolate betaine dye is Reichardt's dye. 6. The wipe of claim 1, wherein the bacteriostatic agent is formed from an aluminum chlorohydrate compound having the following formula: Al2(OH)6-n Cln, wherein, n is from 1 to 5. 7. The wipe of claim 1, wherein the bacteriostatic agent constitutes from 0.5 wt. % to 20 wt. % of the dry weight of the wipe. 8. The wipe of claim 1, wherein the indicator constitutes from 0.5 wt. % to 20 wt. % of the dry weight of the wipe. 9. The wipe of claim 1, wherein the wipe contains a wet wipe solution. 10. The wipe of claim 1, wherein the indicator produces a visually observable color change in the presence of Escherichia coli, Klebsiella pneumonia, Streptococcus, Salmonella choleraesuis, Stiaphyloccus aureus, Pseudomonas aeruginosa, Listeria monocytogenes, or a combination thereof. 11. The wipe of claim 1, wherein the nonwoven web is a paper web. 12. The wipe of claim 1, wherein the nonwoven web also contains synthetic thermoplastic fibers. 13. The wipe of claim 12, wherein the nonwoven web is a coform web. 14. The wipe of claim 1, wherein the indicator is present on a surface of the wipe in a pattern that covers from 20% to 75% of the surface.
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이 특허에 인용된 특허 (108)
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