The present invention temperature control is accurately performed at the time of insertion, such as the hand, and can ensure sufficient thermal sensation at the time of insertion, such as the hand, yet to provide a manufacturing easy hyperthermia body. A heat body 10, the first base material 1 having at least one separating universal line 5 parallel to the longitudinal direction, a second substrate provided with no separating universal line 5 : it is laminated, sealed shape of the insertion space S between the first substrate 1 and the second substrate is a substrate 1 first of these are joined at their periphery second substrate There is formed, further stacked the coating material 4 to the second substrate, between the second substrate and the covering material 4 with these second substrate are joined at their periphery coating material 4 heat-generating composition that generates heat in the presence of air is accommodated, first substrate 1, second substrate and the covering member 4 is characterized in that it is formed into the same outer shape.FIELD 1【課題】手等の挿入時における温度制御が正確に行え、手等の挿入時における十分な温熱感を保証できて、しかも製造容易な温熱体を提供する。【解決手段】温熱体10は、長手方向に平行する少なくとも1本の切離自在線5を有する第1の基材1と、切離自在線5を設けない第2の基材とが積層され、これら第1の基材1と第2の基材とがそれらの周縁部において接合されてこれら第1の基材1と第2の基材の間に密封状の挿入空間Sが形成され、さらに第2の基材に被覆材4が積層され、これら第2の基材と被覆材4とがそれらの周縁部において接合されてこれら第2の基材と被覆材4の間に空気の存在下で発熱する発熱組成物が収容され、第1の基材1、第2の基材及び被覆材4は同じ外形に形成されていることを特徴とする。【選択図】図1
