| 摘要 |
PROBLEM TO BE SOLVED: To solve problems that production cost is high because a high-temperature calcining furnace is needed for production and a multi-layered coating is formed, that meeting environmental requirements of lead-free is difficult, that uneven heat conductivity on the front and back face of a heating means occur, and that it is impossible to heat a transcription material which is the heated object at correct temperatures. SOLUTION: Both faces of a metallic foil exothermic body with a thickness of 30μor less are covered by a polyamide resin film with a thickness of 80μor less containing high heat-conductive fillers, and the heat conductivity of the polyamide resin films on both faces of the metallic foil exothermic body is made nearly equal. COPYRIGHT: (C)2004,JPO
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