| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat generation structure having small shape change after heat generation. SOLUTION: The heat generation structure 1 comprises: a first sheet 3; a heat generation body 6 placed on an upper surface of the first sheet 3; a second sheet 7 adhered to the first sheet 3 in a state that it covers the heat generation body 6; and an adhesion layer 10 coated on a lower surface of the first sheet 3. A gap 12 having 10% or more volume of the heat generation body 6 is formed on an edge of the heat generation body 6. Thus configured, the heat generation body 6 is broken by hardening due to oxidation reaction to generate a plurality of lumps 16 and, even when an apparent full volume of the lumps 16 increases in comparison with the heat generation body 6, the increase is contained in the gap 12. That is, since the whole lumps 16 spread in the horizontal direction, a phenomenon for expanding the first sheet 3 and the second sheet 7 up and down comes to occur less frequently. Consequently, an uncomfortable stiff touch occurring to a pasted part after heat generation is reduced. COPYRIGHT: (C)2010,JPO&INPIT
|
