| 摘要 |
PROBLEM TO BE SOLVED: To provide conductive polyester fibers which have an electric resistance value in a specific range, little have the irregularity of the electric resistance value in the longitudinal direction of the fibers, can be obtained in good operability, and can be used not only for clothing uses and industrial material uses, but also for charged brushes and cleaner brushes used in electrophotographic recording type dry copying machines, facsimiles, printers and the like. SOLUTION: The conductive polyester fibers comprises a multifilament yarn which composed of a plurality of single filaments of a polyester resin and has an average single filament fineness of 15 to 40 nm, includes 15 to 25 mass% of carbon black having a DBP oil supply quantity of 130 to 200 cm<SP>3</SP>/100 g, and has an electric resistance value of 1×10<SP>4</SP>to 9×10<SP>9</SP>Ω/cm. COPYRIGHT: (C)2007,JPO&INPIT
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