▎ 摘 要
NOVELTY - A heating pad comprises an upper silica gel layer (1), an insulating layer, a flexible graphene heating element, a reflective layer, a heat insulating layer and a lower silica gel layer arranged in order from top to bottom. The heating element comprises a conductive fiber cloth, a graphene heating coating printed on a surface of the conductive fiber cloth, a conductive coating printed on the back of conductive limiting portion, a reflective surface paved on the conductive coating, and a protective film paved on a surface of the graphene heating coating. The graphene heating coating faces towards the heat insulating layer, and the reflective surface faces towards the reflective layer USE - Heating pad. ADVANTAGE - The heating pad can be bent and stored, which reduces the space occupied by the pad and satisfies the requirement of the user. The graphene heating coating has high heating efficiency. The flexible graphene heating element is light and thin, occupies small space, effectively reduces the whole thickness of the heating pad, and ensures that the graphene heating coating is always in the electrified state, so that the heating element can heat irrespective of the bending angle. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for graphene heating coating, which comprises 20-30 wt.% polymer resin synthetic material, 2-5 wt.% dispersant, 3-5 wt.% pigment, 5-10 wt.% graphene and 50-60 wt.% solvent. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of heating pad. 1Upper silica gel layer 6Controller