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US 5,496,860 AGranted
Antibacterial fiber, textile and water-treating element using the fiber and method of producing the same
AssigneesSuntory Limited, Takuma Co., Ltd., Nitivy Co., Ltd.
InventorsNobuya Matsumoto, Shinichi Kunisaki, Goro Fujiwara, Mitsunobu Masuda, Hiroshi Horie, Asaichi Kawanaka
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Abstract
An antibacterial fiber includes an ion exchange fiber and an antibacterial metal ion entrapped within the ion exchange fiber through an ion exchange reaction. The invention also discloses antibacterial textiles and water-treating element using the fibers.
Claims5
A method of producing an antibacterial fiber comprising the steps of:
- bonding, through an ion exchange reaction, complex ion of silver, copper or zinc with ion exchange group of cation exchange fiber having sulfonic or carboxyl group as ion exchange group thereof;
- and
- reducing the complex ion.
A method of producing an antibacterial fiber comprising the steps of:
- bonding, through an ion exchange reaction, complex ion of silver, copper or zinc with ion exchange groups of an anion exchange fiber having primary through tertiary amine groups and quaternary ammonium group;
- and
- reducing the complex ion.
A method of producing an antibacterial fiber containing at least silver ion, which comprises the steps of:
- bonding, through an ion exchange reaction, a cation of more than one kind of alkali metals or alkaline earth metals selected from the group consisting of Na, K, Ca and Mg with entire ion exchange groups of a cation exchange fiber having sulphonic acid groups or carboxyl groups as ion exchange groups thereof;
- and replacing a portion of said alkali metals or alkaline earth metals bonded to said ion exchange groups with said silver ion alone or with said silver ion and either copper ion or zinc ion in combination.
Dependencies are inferred from the claim text.