| 摘要 |
PURPOSE:To provide the recording method of image information, in which the inscription of information and the input of recording, etc., are conducted simply and easily and which cannot be read generally by naked eyes and ban be read only by a specific means. CONSTITUTION:In the recording method of image information, in which a colored region consisting of infrared absorptive dyestuffs and a colored region composed of infrared reflective dyestuffs are superposed and formed in parallel on an arbitrary base body, an ink-jet printing system is used as the recording method, images such as characters. digits, marks, patterns, etc., are formed to at least one of the colored regions, and said two kinds of the colored regions cannot be discriminated or are difficult to be discriminated substantially by naked eyes. |
