| 摘要 |
PROBLEM TO BE SOLVED: To provide a keyboard switch obtained in an easy formation method which eliminates an outer case with utilizing toughness of a film and rigidity of a switch board, is thin and light-weight and provides sure sense of touch. SOLUTION: A plastic film 23 having a plurality of projecting parts on the surface and also a display printed at least at a rear face is inserted to an injection molding mold. A thermoplastic polyester elastomer composition is injected to the mold, thereby forming a spacer part 26 and a pressure part 24 of the thermoplastic polyester elastomer composition. At this time, these parts are integrally formed with the film part, so that a switch key sheet 27 is obtained. At least one kind of ink used for a printing layer is a two-component set type ink. |
