| 摘要 |
PURPOSE:To prevent a leak of a release agent before use and remove a high polymer film automatically by a temperature rise of a fixing roll during the use by covering a release agent bleeding part with the high polymer film which has a low fusion point. CONSTITUTION:A porous tube projecting from a base opening part 23, i.e. the release agent bleeding part is covered externally with the breadthwise intermediate part of the high polymer film 24 of polyethylene, etc., having a low fusion point. Both side parts are covered while interposed between the wall of the cavity part 22 of a base 21 and the porous tube 20, and the endmost part is interposed in the joint part 25 of the split base 21 to form a packing part. Thus, the release agent bleeding part is covered with the high polymer film, so no release agent leaks before use and the high polymer film is removed automatically in use by a temperature rise of the fixing roll. |
