| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a highly forgery-proof card with excellent designability which requires no verification appliance such as a special illuminant, can make a character or a pictorial pattern visually recognizable by ambient light transmitted from the back of the card. <P>SOLUTION: This card comprises at least, a first colored ink layer with high light transmission, a second patterned colored ink layer with low light transmission and a third colored ink layer of the same color as the second colored ink, with high light transmission, sequentially laminated on the entirety or a part of one surface of a highly transparent resin sheet base material. Thus the card allows the pattern to be visually recognized by transmission of the ambient light through the back of the card. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
