| 摘要 |
PROBLEM TO BE SOLVED: To provide a push-button switch structure formed in a solid molding free of flowing-out of the printing ink. SOLUTION: This push-button switch structure has a protective sheet 4 between the print layer 2 of a base film 1 formed from a thermoplastic film and the key top part of a push-button switch member 5. The size and shape of the sheet 4 comply with the key top part. It is preferable that the base film 1 has a thickness of 40-350μm and the protective sheet 4 has a thickness of 80-500μm. The print layer 2 is formed on the base film 1 whereto the protective sheet 4 is adhered, and if desirable, a print film is adhered additionally so that a molded web of film is produced, which is if desirable, subjected to a provisional drawing process so that a push-button switch member 5 is formed in a solid molding on the molded web of film. |
