| 摘要 |
PROBLEM TO BE SOLVED: To realize a configuration that has excellent flexibility and high abrasion resistance as a rubbing layer 11 for a fixing belt 41 used as a heating belt.SOLUTION: A rubbing layer 11 is a polyimide resin layer formed by mixing first polyimide precursor and second polyimide precursor greater in loss elastic modulus than the first polyimide precursor. In particular, in the first polyimide precursor, an imidization rate at a predetermined burning temperature is 95 to 100%, and in the second polyimide precursor, the imidization rate at a predetermined burning temperature is 70 to 93%. Mixing the first polyimide precursor and second polyimide precursor for use as the rubbing layer 11 makes it possible for the entire layer to maintain high abrasion resistance and stick slip restriction effect. |
