| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a truth determining body with a color changeable function which performs a new color change as the color change of the color changeable ink surely turns "blue-shifted", and it becomes possible to generally easily obtain an article to perform the similar color change, and accordingly, no longer it becomes insufficient to confirm truthfulness of an object for security. <P>SOLUTION: The truth determining body with the color changeable function is characterized in that a color changeable ink layer including a pigment or the like in which the wavelength of a reflected light shifts from a visible region of≤500 nm to an ultraviolet region, and a color changeable ink layer including a pigment or the like shifting from an infrared region to a visible region of≥500 nm, are laminated, and furthermore, a hologram forming layer is laminated thereon, and thereby, a so-called "red shift" and a unique "hologram" can be observed at the time of observation. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
