| 摘要 |
PROBLEM TO BE SOLVED: To obtain a fiber structure exhibiting antibacterial property against various pathogenic bacteria, especially methicillin-resistant Staphylococcus aureus causing the problem of nosocomial infection by fixing a tea polyphenol to a fiber. SOLUTION: A structure composed of at least one kind of fiber selected from natural fibers, chemical fibers, synthetic fibers and regenerated fibers is treated in an aqueous solution containing a cationizing agent and an alkaline compound and then treated with an aqueous solution containing a tea polyphenol extracted from at least one kind of tea selected from Japanese tea, Chinese tea, black tea and Puer tea derived from Camellia sinensis belonging to the family Theaceae, preferably a tea polyphenol having high epigallocatechin purity to fix the tea polyphenol to the fiber in an amount of 0.1-20 wt.%, preferably 0.5-5 wt.% and obtain the objective fiber structure exhibiting antibacterial property against at least one kind of pathogenic bacteria selected from Staphylococcus aureus, Pseudomonas aeruginosa, Escherichia coli and Klebsiella pneumoniae. |
