HEATING ELEMENT AND HAIR SETTER

摘要

PROBLEM TO BE SOLVED: To provide a heating element capable of temperature control without fail. SOLUTION: A heating element A is composed of a heating part 1, which is formed of a resin material containing a powdery conductive material and has positive temperature coefficient characteristics, and at least a pair of conductive part 2, 3 conductive to a heating part 1. At this time, the quotient of the resistant value R2 of the heating part 1 between the shortest distance of the pair of conductive part 2, 3 by the sectional space S2 of the heating element part 1 perpendicular to the conductive direction of the heating element 1 is to exceed the quotient of the resistant value R1 between both ends of the conductive parts 2, 3 in the conductive direction of the conductive parts 2, 3. In such a constitution, the temperature in the heating element 1 can be made constantly higher than that in the conductive parts 2, 3.