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US 6,743,261 B2Granted
Functionalized fiber material and method for treating fiber material therefor
AssigneeFuji Spinning Co., Ltd.
InventorsKoki Itoyama, Takatoshi Fujii
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AssigneeFuji Spinning Co., Ltd.
InventorsKoki Itoyama, Takatoshi Fujii
Estimating the term…
The present invention discloses a functionalized fiber material treated with a emulsion containing an ascorbic acid derivative which is hardly soluble in water, wherein the ascorbic acid derivative which is hardly soluble in water is preferably tetraalkylester of L-ascorbic acid. Said treatment method comprises treating a fiber material with an emulsion comprising a mixture of an ascorbic acid derivative which is hardly soluble in water, an anionic surfactant or a combination of an anionic surfactant and a nonionic surfactant, and water, wherein a concentration of the ascorbic acid derivative which is hardly soluble in water is 0.05 to 10 % by weight. The functionalized fiber material of the present invention enables a sustained discharge of the active ingredient without losing the moisture absorption and release properties possessed by the fiber.
A functionalized fiber material which comprises a tetraalkylester of L-ascorbic acid, which is substantially insoluble in water, adhered to a fiber material.
A method for treating a fiber material which comprises treating said fiber material with an emulsion containing an ascorbic acid derivative which is substantially insoluble in water, said emulsion further including an anionic surfactant or a combination of an anionic surfactant and a nonionic surfactant.
A functionalized fiber material which comprises:
Dependencies are inferred from the claim text.