▎ 摘　　要

NOVELTY - Preparing graphene screen printing electrothermal ink involves preparing graphene powder, and preparing graphene heating ink. USE - Method for preparing graphene screen printing electrothermal ink for preparing a printed heating film (Claimed). ADVANTAGE - The electrothermal ink preparation method has the advantages of wide applicability, simple and convenient operation, low production cost, and environmental protection. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing a printed heating film, which involves printing graphene-based screen printing electrothermal ink by a screen printing screen, the mesh of the screen is 100-300 mesh, and the substrate is a film substrate, and after the printing is completed, curing the printed product at room temperature for 8-12 hours, and then heating to 80-100 degrees C at a rate of 3-5 degrees C/minute to obtain a printed heating film.