Patent ID: 8216559

Claim:
A deodorant fiber comprising a thermoplastic resin containing 0.1 to 10 weight %, with respect to the weight of said fiber, of a complex oxide kneaded into the fiber, and a surface of the fiber being coated with 0.3 to 5 weight %, with respect to the weight of said fiber, of coating comprising a surfactant composition comprising 20-80 weight % of a component A and 80-20 weight % of at least one component selected from the group consisting of a component B and a component C, the complex oxide being represented by either the following formula (1): M 2+ (1−x1) M 3+ (x1−δ) O (1), wherein M 2+ is zinc or a zinc-containing divalent metal; M 3+ is a trivalent metal selected from a group consisting of Al, Fe and Ce; x1 is a number in a range 0<x1≦0.5; and δ is cationic lattice defect, or the following formula (2): (M 1 2+ ) 1−x2 (M 2 2+ ) x2 O (2), wherein M 1 is at least one member selected from the group consisting of Mg and Ca; M 2 is at least one member selected from the group consisting of Cu and Zn; and x2 is a number in a range 0.0001≦x 2 ≦0.5, the component A being at least one compound selected from a group consisting of betaine amphoteric compounds, carbonyl compounds and vinyl ether-maleic anhydride copolymers, the carbonyl compounds being at least one selected from the group consisting of monovalent aldehydes, bivalent aldehydes, aromatic aldehydes, aldehydic alcohols, aldehydic carboxylic acids, ketones, ketoaldehydes, ketoalcohols, and ketocarboxylic acids, the component B being a nonionic surfactant including at least one substance selected from a group consisting of nonionic surfactants based on alkylene oxide adducts and nonionic surfactants based on polyvalent alcohols, and the component C is an anionic surfactant including at least one substance selected from a group consisting of carbonates, sulfonates, sulfate ester salts and phosphate ester salts, the carbonates being at least one selected from the group consisting of soaps of potassium oleate and soaps of sodium laurate, the sulfonates being at least one selected from the group consisting of alkylsulfonates and alkylbenzenesulfonates, the sulfate ester salts being at least one selected from the group consisting of alkyl sulfate ester salts or alkyl (polyoxyalkinene) sulfate ester salts, the phosphate ester salts are phosphate ester salts of higher alcohols having 6 to 24 carbon atoms.