| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an authenticity determination body with color variable function, which shows new color change, whereas color change of color variable ink is no longer sufficient for confirmation of authenticity of a security object since the color change always shows "blue shift", and ink which shows the same color change can be generally easily obtained. <P>SOLUTION: The authenticity determination body with color variable function is obtained by successively laminating a color variable ink layer containing a pigment or the like in which the wavelength of reflectable light is shifted from a visible range with 500 nm or less to an ultraviolet range, a color variable ink layer containing a pigment or the like in which the wavelength is shifted from infrared range to the visible range with 500 nm or more, and further a hologram forming layer. When this authenticity determination body is observed, so-called "red shift" and "hologram" can be observed. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
