Fixing belt, base element for fixing belt, fixing device, image forming apparatus and method for producing base element

A base element for a fixing belt, comprising a sheet comprising a heat-resistant resin,

• wherein the sheet has opposite end portions that are joined in an endless state,
• a conductive film layer of a thickness of 3 to 15 μm comprises striped application parts covering at least two thirds but not the entirety of an inner surface of the sheet having opposite end portions joined in an endless state,
• the striped application parts comprise a conductive material sprayed on the sheet,
• the striped application parts of the conductive film layer are inclined to a rotation direction of the belt, and
• the conductive film layer satisfies a following relationship:
• ⅔≦X/(X+Y)<1,
• where X represents a total area of the striped application parts of the conductive film layer, and Y represents a total area of intervals between the striped application parts of the conductive film layer.