Invention Grant
US08626046B2 Image heating apparatus, pressure roller to be used in the image heating apparatus, and manufacturing method for the pressure roller 有权
图像加热装置,图像加热装置中使用的加压辊,以及加压辊的制造方法

Image heating apparatus, pressure roller to be used in the image heating apparatus, and manufacturing method for the pressure roller
Abstract:
The image heating apparatus includes a rubber layer and a resin tube layer on a metal core. The rubber layer includes a solid rubber layer having a thermal conductivity in a thickness direction of 0.16 W/(m·K) or more and 0.40 W/(m·K) or less, and a self-bonded silicone rubber layer that contains a filler of 5 vol % or more and 40 vol % or less, and has a thermal conductivity in an axial direction of 2.5 W/(m·K) or more and a thickness of 0.5 mm or more and 5.0 mm or less, the filler having a length of 0.05 mm or more and 1 mm or less and a thermal conductivity in a length direction of 500 W/(m·K) or more, so that a pressure roller to moderate temperature rise in a non-sheet feeding area when a small sized recording material has undergone sheet feeding can be easily manufactured.
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