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US 4,401,712 AGranted
Antimicrobial non-woven fabric
AssigneeTultex Corporation
InventorWillard L. Morrison
Life of this patent
Estimating the term…
Abstract
An antimicrobial agent is incorporated into the binder of a non-woven fabric where it resides in colloidal suspension within the amorphous zones of the polymer. Thus incorporated it migrates to the surface of the binder and onto the fibers of the non-woven fabric to inhibit the growth of bacteria and fungi.
Claims3
A non-woven fabric comprising:
- (a) a web of textile fibers formed according to the wetlaid process or the drylaid process;
- (b) a polymeric base binding agent selected from the group containing acrylics, polyvinyl acetates, vinyl acetate-ethylenes, and styrene-butadine latexes;
- and
- (c) said binding agent having a minor amount of an antimicrobial agent incorporated therein, said antimicrobial agent being non-cross-linked with binding agent, residing in cooloidal suspension within the amorphous zones of said polymeric base binding agent available to migrate to the surface of the binding agent and onto the textile fibers until the internal reservoir is exhausted.
1 more element
Dependencies are inferred from the claim text.