| 摘要 |
PROBLEM TO BE SOLVED: To provide a polyimide-made seamless belt obtained by coating a polyamic acid composition liquid on a cylindrical metal mold while suppressing the number of molds and processes to the minimum, the polyimide-made seamless belt capable of providing electrical characteristics without impairing mechanical characteristics, having a surface with excellent quality without swelling and citron skin-like appearance defect, and having a thickness of 60 μm or more.SOLUTION: There is provided a polyimide-made seamless belt containing polyimide comprising a part derived from aromatic diamine and a part derived from aromatic tetracarboxylic acid, the polyimide-made seamless belt for an image forming apparatus having two types of carbon black: high-structure carbon black providing high conductivity and acidic carbon black dispersed therein, and having a surface resistivity of 10&OHgr;/sq. or less.SELECTED DRAWING: Figure 1 |
