| abstract |
(57) [Abstract] (Correction) [Problem] To prevent generation of dust at the time of manufacturing a heating element and to suppress the exothermic reaction of the exothermic composition so that loss due to the exothermic reaction at the time of manufacturing, It prevents quality deterioration and coagulation, and further transfers the heat-generating composition onto a water-absorbent foamed film / sheet, nonwoven fabric, woven fabric or porous film / sheet, or a water-absorption layer formed thereon. This provides a method for producing a heating element that can evenly distribute and fix the exothermic composition on the bag material to prevent the exothermic composition from moving and shifting. An exothermic substance, a water-absorbing polymer and / or a thickening agent, a carbon component and / or a metal chloride, and water are essential components and are formed into an ink or cream as a whole. A heating element using this ink- or cream-shaped heating composition and a method for producing the same are configured. |