| 摘要 |
PROBLEM TO BE SOLVED: To enable punching with male and female molds and thermoforming at low temperature without decreasing rigidity.SOLUTION: A card has a transparent laser color developing substrate made of a polycarbonate substrate on at least one side so as to allow laser printing. The card has a transparent exterior substrate as outermost layers, white substrates as inner layers in contact with the laser color developing substrate, and an antenna for communication formed inside with etching or copper wire.SELECTED DRAWING: Figure 1 |
