| 摘要 |
<p>Disclosed is a semiconductive roller capable of stably obtaining a high quality image for a long time because the semiconductive roller can effectively prevent a glass ECH component from moving to the surface of the semiconductive roller. The semiconductive roller includes an elastic layer made of a semiconductive rubber composite which includes base rubber of 50 to 70 wt% and hydrin rubber of 30 to 50 wt%. The extraction amount of the ECH component from the elastic layer is 2 volume % or less. The elastic layer is obtained from the reduction of Cl strength due to X-ray fluorescence (XRF) measured before/after extracting ECH element from the elastic layer by using a THF solution.</p> |
