Colored biocidal multi-layer structure
a multi-layer structure and biocidal technology, applied in the field of biocidal layers, can solve the problems of rapid depletion of antimicrobial active materials, loss of antimicrobial coatings and materials, and significant fear of antibiotic-resistant strain development, etc., and achieve the effect of ensuring the effect of freshness or replacemen
Inactive Publication Date: 2016-04-21
EASTMAN KODAK CO
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- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Benefits of technology
The present invention is a colored structure that can be used to kill harmful microbes. It's easy to change or replace when the color fades.
Problems solved by technology
In addition, significant fear has arisen in regard to the development of antibiotic-resistant strains of bacteria, such as methicillin-resistant Staphylococcus aureus (MRSA) and vancomycin-resistant Enterococcus (VRE).
There is a problem in that the rate of release of antimicrobial ions from antimicrobial films can be too facile, such that the antimicrobial article can quickly be depleted of antimicrobial active materials and become inert or non-functional.
However, as noted above, the antimicrobial coatings and materials lose their efficacy over time.
Due to the variety of environmental circumstances and usage patterns of such anti-microbial coatings and materials, it is difficult to know when they are no longer efficacious.
Method used
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[0022]The present invention provides an antimicrobial article such as a bi-layer biocidal structure 5 shown in FIG. 1 of the present invention that includes a simply observed indication to replace the article. In an embodiment, the indication is related, either directly or indirectly, to the antimicrobial efficacy of the article or is otherwise associated with the antimicrobial efficacy of the article. The indication is provided by apparent changes in color of at least portions of the article. The changes are, for example, patterns, text, or graphic elements formed in an underlying layer that are exposed as overlying layers exposed to the environment are degraded over time. In one method of the present invention, the antimicrobial article is repeatedly washed and the repeated washing removes portions of the article to expose the indication and indicate that the article should be replaced.
[0023]Referring to FIG. 1, in an embodiment of the present invention, the biocidal multi-layer s...
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Abstract
A colored biocidal multi-layer structure includes a first layer of a first color and a biocidal second layer on or over the first layer. The biocidal second layer has a second color different from the first color.
Description
CROSS REFERENCE TO RELATED APPLICATIONS[0001]Reference is made to commonly-assigned co-pending U.S. patent application Ser. No. ______ (Attorney Docket No. K001887) filed concurrently herewith, entitled Making Colored Biocidal Multi-Layer Structure, by Scheible et al, to commonly-assigned co-pending U.S. patent application Ser. No. ______ (Attorney Docket No. K001888) filed concurrently herewith, entitled Using Colored Biocidal Multi-Layer Structure, by Scheible et al, to commonly-assigned co-pending U.S. patent application Ser. No. 13 / 235,789, filed Sep. 19, 2011, entitled Antibacterial and Antifungal Protection for Toner Image, by Blanton et al, and to commonly-assigned co-pending U.S. patent application Ser. No. 13 / 357,082, filed Jan. 24, 2012, entitled Ink Having Antibacterial and Antifungal Protection, by Blanton et al, the disclosures of which are incorporated herein.FIELD OF THE INVENTION[0002]The present invention relates to biocidal layers having antimicrobial efficacy on a...
Claims
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IPC IPC(8): B32B7/02B32B7/12B32B7/06B32B7/023
CPCB32B7/02B32B7/06B32B7/12B32B2307/7145B32B2264/105B32B2307/73B32B2264/102B32B2307/404B32B2307/736B32B27/08B32B27/10B32B27/16B32B27/18B32B27/30B32B27/304B32B27/32B32B3/30B32B2255/10B32B2264/10B32B2264/104B32B2307/402B32B2307/412B32B2307/546B32B2307/748B32B2307/75B32B2419/00B32B2471/00B32B2535/00B32B2607/02B32B38/145B32B2439/70B32B2307/70B05D5/00B05D7/52B05D5/06B32B7/023B05D3/108B05D3/12B05D3/148B32B37/144
InventorSCHEIBLE, JOHN JOSEPHMCHUGH, TOMAS GERARD PATRICKPRIEBE, ALAN RICHARDCOK, RONALD STEVEN
OwnerEASTMAN KODAK CO