PROBLEM TO BE SOLVED: To provide an exothermic material that can be mixed with various media applied to a human body and stably exhibits high exothermic effect.SOLUTION: An exothermic material comprises, relative to 100 pts.wt. of clay comprising silicon dioxide of 30% or more and aluminum oxide of 15% or more, titanium oxide of 0.5-30 pts.wt., manganese oxide of 2.0-80 pts.wt., iron oxide of 0.2-10 pts.wt., zinc oxide of 1.0-10 pts.wt., and lignin of 5-30 pts.wt., and has its particle diameter controlled to be 0.4 μm to 4 μm.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2017,JPO&INPIT【課題】人体に塗布する各種の媒体に混合可能であり、高い発熱効果を安定的に発揮する発熱材を提供する。【解決手段】二酸化珪素を30%以上、酸化アルミニウムを15%以上含む粘土100重量部に対して、酸化チタン0.5~30重量部、酸化マンガン2.0~80重量部、酸化鉄0.2~10重量部、酸化亜鉛1.0~10重量部、リグニン5~30重量部を配合し、粒径を0.4μm乃至4μmに調整した発熱材。【選択図】図1
