| 摘要 |
PURPOSE:To reduce production time and cost of equipment by providing a protective sheet on which labels such as characters or figures are already printed, on a resin substrate on which a reflecting film or a recording film is formed. CONSTITUTION:Labels 13 are printed on a resin protective sheet 14 and the sheet is adhered on a resin substrate 16 on which a reflecting film 15 and data signals are already formed. Then an optical disk 17 with a center hole is produced with a punching machine. This method does not need individual machines for forming protective films and for printing, used by conventional method, so that the cost for equipment can be decreased and production time can also be shortened. |
