| 摘要 |
A main object of the present invention is to provide an intermediate transfer belt for image-forming devices and a method for producing the intermediate transfer belt, the intermediate transfer belt having excellent image transfer to rough paper and resistance to abrasion and being free from problems such as filming, by forming a surface layer that has excellent resistance to abrasion and in which defects such as pinholes are not likely to occur even when the surface layer is thinned. An intermediate transfer belt for image-forming devices and a method for producing the same, the intermediate transfer belt comprising at least the following three 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 the indentation depth of 2 µm, and 1.0 N/mm 2 or less at the 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. |
