Fluorine resin tubular article, fixing roll, fixing belt and image fixing apparatus
OwnerShinro Oyamainventor
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Abstract
The present invention is tubular article comprising a polytetrafluoroethylene-based fluorine resin as a constitutional element, wherein the article has a maximum wall thickness of 20 μm or smaller, and satisfies the following (1) and/or (2) properties. (1) Tensile elastic moduli in a circumferential direction and a tube axial direction are both 900 N/mm2 or more. (2) Tensile stresses at 5% elongation in a circumferential direction and a tube axial direction are both N/mm2 or greater. When this fluorine resin tubular article is used as a superficial layer of a fixing roll or a fixing belt, excellent durability can be exerted.
Claims9
A fluorine resin tubular article comprising a polytetrafluoroethylene-based fluorine resin as a constitutional element, wherein the tubular article has a maximum wall thickness of 20 μm or less, and satisfies following (1) and/or (2) properties:
- (1) tensile elastic moduli in a circumferential direction and a tube axial direction are both 900 N/mm2 or greater;
- and
- (2) tensile stresses at 5% elongation in a circumferential direction and a tube axial direction are both 15 N/mm2 or greater.
Dependencies are inferred from the claim text.