| 摘要 |
PURPOSE:To obtain the semiconductive roll which has the excellent environmen tal dependency resistance and uniformity of electric resistance and can deal with high-speed models of, for example, printers, etc. CONSTITUTION:A conductive elastic material layer 21 is formed along the circumference on the outer periphery of an arbor 20. A 1st resistance adjustment layer 22 is formed on the outer periphery of this conductive elastic material layer 21 and a 2nd resistance adjustment layer 23 is formed on the outer periphery of the 1st resistance adjustment layer 22. Further, a protective layer 24 is formed on the outer periphery of the 2nd resistance adjustment layer 23. The above-mentioned 2nd resistance adjustment layer 23 is constituted of a hydrophobic synthetic resin compsn. prepd. by using a hydrophobic synthetic resin as a matrix component and dispersing and incorporating a conductive material into this matrix component. |
