| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a heating element using an ink-like or a cream-like heating composition which prevents contamination of clothes while using the heating element and extends duration of effective heating temperature. <P>SOLUTION: The heating element keeps the ink-like or cream-like heating composition layer 2 contained in a packing material 1 made by bonding circumferences of a sheet-like or film-like air-impermeable substrate 1a and a sheet-like or film-like air-permeable coating material 1b superposed with each other. Nonwoven fabric 3 having water resistant property, waterproof property and air-permeability sufficient for aeration of the air-permeable coating material is interposed between the air-permeable coating material 1b and the heating composition layer 2. The nonwoven fabric 3 having water resistant property, waterproof property and air permeability is also interposed between the air-permeable substrate 1a and a water-absorbing material dispersing layer 4 arranged on the top or bottom surface of the heating composition layer 2. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
