POLYIMIDE FILM, IMAGE-FORMING DEVICE, METHOD FOR PRODUCING POLYIMIDE FILM AND METHOD FOR PRODUCING INTERMEDIATE TRANSFERRING BELT

摘要

PROBLEM TO BE SOLVED: To provide a polyimide film or the like, composed of a polyimide as a main constituent material, containing at least a polyaniline and a dopant for making the polyaniline conductive, and having a stabilized resistivity obtained by sufficiently making the polyaniline electroconductive; to provide an image-forming device having an intermediate transferring belt constituted of the polyimide film; to provide a method for producing the polyimide film; and to provide a method for producing the intermediate transferring belt.

SOLUTION: The polyimide film has a weight-decreasing rate within a range of≥-1.9% and≤-1.4% at the variation point at which the change of the weight decreasing rate is decreased at first from 30°C in a weight-decreasing curve in relation to temperature rise when the polyimide film 1 is gradually heated from 30°C.

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