PROBLEM TO BE SOLVED: To provide a heat pack such as cauterization using quick lime, the heat pack that is structured to generate reaction heat by separately dropping water for reaction using equipment such as a dropper when in use without preliminarily storing the water in a heat pack body such as the cauterization, and in which the dropping water is constituted so as to react with the quick lime reliably and quickly, a conventional drawback is eliminated through a water absorption ring having a permeating exudation function of moisture, and thereby all people can obtain heat effect very easily and safely at low cost.SOLUTION: A heat pack is constituted of a plate-like support base, a doughnut-shaped water absorption ring constituted to permeate and exude moisture on the upper surface, a quick lime mass stored in the hollow part of the water absorption ring, a water absorptive cover body being mounted and coated in the water absorption ring on the upper surface, and release paper attached to the lower bottom surface of the support base in a peeling manner.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2017,JPO&INPIT【課題】予めお灸などの温熱パック本体に貯溜水を具備させないで、反応用の水は使用時に別途スポイト等の器具で滴下して反応熱を生起する構造とすると共に、滴下水は確実、迅速に生石灰と反応するような構成として、水分の浸潤滲出機能を有する吸水環体を介して、従来の上記欠点を解消し、安全で万人がいとも手軽にかつ安価に、しかし、温熱効果を容易に得ることができ、生石灰利用のお灸などの温熱パックを提供する。【解決手段】板状の支持基体と、その上面において水分を浸潤滲出可能に構成したドーナツ状の吸水環体と、吸水環体の中空部内に収納した生石灰塊体と、その上面に吸水環体に載置被覆した吸水性カバー体と支持基体の下底面に剥離自在に貼着した剥離紙とより構成してなることとした。【選択図】図1
