Articles and methods for dispensing metal ions into laundry systems
AssigneeApplied Silver, Inc.
InventorsRussell Bik, William Morris, James Charles Copeland, Robert Babcock
Life of this patent
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Abstract
Articles and methods for treating textiles and other materials with an antimicrobial compound during laundry and/or drying cycles. The articles include a porous substrate and a core composition that is releasably associated with the substrate and that includes a metal ion having antimicrobial activity. Methods include the use of the articles in laundry and/or drying cycles to provide antimicrobial treatment of the textiles and materials.
Claims27
An article for use in treating a textile in a laundry cycle with an antimicrobial compound, wherein prior to using the article to treat the textile in the laundry cycle, the article comprises:
- (a) a porous substrate comprising a fabric, wherein the substrate comprises one or more sheets;
- and
- (b) a core composition comprising a metal ion having antimicrobial activity and a first counterion, wherein the core composition is releasably associated with the substrate, and wherein the core composition further comprises a second compound comprising a second ion and a second counterion, wherein the dissociation constant of the metal ion and the first counterion is greater than the dissociation constant of the metal ion and the second counterion, and wherein the metal ion is different than the second ion.
Dependencies are inferred from the claim text.