Patent ID: 8367192

Claim:
An intermediate transfer belt for an image-forming device, comprising at least the three following layers laminated in the described order: (a) a base layer formed from resin, (b) a rubber-elastic layer formed from a rubber or elastomer, having a thickness of 200 to 400 μm, and (c) a surface layer formed from resin, having a thickness of 0.5 to 6 μm, wherein the intermediate transfer belt has the following properties: (i) the dynamic ultramicro hardness (ISO14577-1) measured from the surface layer side is 2.5 to 4.5 N/mm 2 at an indentation depth of 2 μm, and 1.0 N/mm 2 or less at an indentation depth of 10 μm, and/or (ii) the rubber-elastic layer contains a filler in a proportion of 0.4 to 4.0 vol. %, and the ratio (M 1 /M 3 ) of the mass concentration M 1 of the filler in the region from the interface between the surface layer and the rubber-elastic layer toward the base layer to a depth of 20 μm, to the mass concentration M 3 of the filler in the region from 120 μm to 140 μm in depth from the interface between the surface layer and the rubber-elastic layer toward the base layer is 1.3 or higher.