Silver-containing antimicrobial articles and methods of manufacture
First Claim
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1. A method of making a packaged antimicrobial article, the method comprising:
- preparing a composition comprising silver sulfate;
coating the silver sulfate composition on a silver nitrate oxidizable substrate;
drying the coated substrate to form an antimicrobial article, wherein drying the coated substrate occurs at a temperature that causes the silver sulfate composition to develop a yellowish color due to the formation of silver in the zero valence state;
placing the antimicrobial article in packaging material having a volatile organic content of no greater than 100 mg per square meter;
sealing the packaging material with the antimicrobial article therein; and
irradiating the antimicrobial article after the packaging material is sealed;
wherein the antimicrobial article is color stable after irradiation.
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Abstract
A silver composition comprising silver sulfate, methods of making antimicrobial articles, particularly packaged antimicrobial articles, methods of whitening antimicrobial articles, and packaged antimicrobial articles.
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Citations
8 Claims
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1. A method of making a packaged antimicrobial article, the method comprising:
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preparing a composition comprising silver sulfate; coating the silver sulfate composition on a silver nitrate oxidizable substrate; drying the coated substrate to form an antimicrobial article, wherein drying the coated substrate occurs at a temperature that causes the silver sulfate composition to develop a yellowish color due to the formation of silver in the zero valence state; placing the antimicrobial article in packaging material having a volatile organic content of no greater than 100 mg per square meter; sealing the packaging material with the antimicrobial article therein; and irradiating the antimicrobial article after the packaging material is sealed; wherein the antimicrobial article is color stable after irradiation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification