| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for producing an antimicrobial acrylic fiber that retains antimicrobial activity for a long period of time, is mixed with another fiber material to give a mixed spun yarn having soft and excellent feeling. SOLUTION: In the method for producing an antimicrobial acrylic fiber having a single fiber fineness of not more than 2.2 dtex, a crystalline fine particle supporting silver having a median diameter in a master batch of not less than 1μm and a 90% particle diameter of not more than 5μm is added as an antimicrobial agent in the spinning process and the ratio of the discharge linear velocity of a polymer from nozzles to the take-off speed of coagulated yarn is 0.7-1.2. COPYRIGHT: (C)2010,JPO&INPIT
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