Patent ID: 9709260
Date: 2017-07-18
CPC Classifications: A61F,B65B,F22B,F24V

Claim:
1. A heat generating device comprising a heat generating element and an enclosing material entirely enclosing the heat generating element, the heat generating element comprising: a base sheet formed of a fibrous sheet containing superabsorbent polymer particles and hydrophilic fibers, and a layer of a heat generative composition containing oxidizable metal particles located on a side of the base sheet, the enclosing material comprising a first cover sheet and a second cover sheet bonded to each other in their peripheral portions to provide a space therebetween in which the heat generating member is placed, the heat generating element placed in the space being in a non-fixed state to the enclosing material, the first cover sheet having air permeability in a part thereof and being located on the side of the layer of the heat generative composition, and the heat generating device being configured to release steam from the side of the first cover sheet while in use, wherein water being supplied from the base sheet to the heat-generative layer.