▎ 摘　　要

NOVELTY - Flexible temperature sensor has flexible base layer. The flexible base layer includes flexible insulating layer (1). The flexible insulating layer is provided with a rough surface, and the rough surface is provided with a flexible temperature-sensing layer (2) and a conductive circuit layer (3). The flexible temperature-sensing layer is connected to the conductive circuit layer, the flexible temperature-sensing layer is a conductive ink layer. The surface tension of the conductive ink layer is 1-2 dyn/cm smaller than the surface tension of the flexible insulating layer. USE - Flexible temperature sensor used in wearable device (claimed). ADVANTAGE - The flexible temperature sensor has good flexibility, strong self-adaptability, good production consistency, high production yield and good stability, and is beneficial to the industrial production of the product. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing a flexible temperature sensor, which involves: (a)providing flexible base layer, the flexible base layer includes a flexible insulating layer, providing flexible insulating layer with a rough surface; (b) printing a conductive circuit layer on the rough surface, where the printing method of the conductive circuit layer is evaporation, sputtering, inkjet printing, three-dimensional (3D) printing, screen printing, pad printing, gravure printing or photolithography; (c) printing an insulating protective layer on the conductive circuit layer, where the printing method of the insulating protective layer is screen printing, inkjet printing, pad printing or gravure printing; and (d) printing a flexible temperature-sensitive layer on the rough surface, where the flexible temperature-sensitive layer is a conductive ink layer, and the printing method of the conductive ink layer is screen printing, inkjet printing, pad printing or gravure printing DESCRIPTION OF DRAWING(S) - The drawing shows a schematic structural view of a flexible temperature sensor. 1Flexible insulating layer 2Flexible temperature-sensing layer 3Conductive circuit layer 31First connection end 32Second connection end