MANUFACTURING METHOD OF FLEXIBLE PLANE HEATING ELEMENT AND FLEXIBLE PLANE HEATING ELEMENT MANUFACTURED THEREBY

摘要

More particularly, the present invention relates to a flexible surface heating element, and more particularly, a carbon fiber yarn is produced by mixing iron oxide and carbon powder at an appropriate ratio to control electric properties of the carbon fiber yarn, thereby realizing heating characteristics different from each other in longitudinal and transverse directions A method of producing a flexible surface heating element having excellent flexibility by introducing a thermoplastic polyurethane layer into the upper and lower surfaces of a grass sheet, and a flexible surface heating element produced by the method of producing the flexible surface heating element.