| 摘要 |
PROBLEM TO BE SOLVED: To obtain an antimicrobial/acaricidal yarn having excellent durability of washing resistance and safety useful for mattress staffing, or the like, by sticking a specific antimicrobial agent and a specified acaricidal agent in a prescribed ratio fast to the surface of yarn with a styrene/acrylic acid-based ester copolymer. SOLUTION: A quaternary ammonium salt-based antimicrobial agent of the formula (R1 is a 5-14C alkyl; R2 is R1, benzyl) such as dicocoyldimethylammonium chloride in an amount of 0.01-0.8 wt.% and a pyrethroid-based acaricidal agent such as phenothrin in an amount of 0.005-0.5 wt.% both based on the weight of yarn are stuck fast to the surface of a yarn such as a polyester yarn with a styrene/acrylic acid-based ester copolymer. The pick-up of the styrene/acrylic acid-based ester copolymer is preferably 1-3 times as much as the total amount of the antimicrobial agent and the acaricidal agent.
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