| 摘要 |
PURPOSE:To use ink having long-term stability in an ink film and to enable the long-term preservation of a print image. CONSTITUTION:Three or more color inks are applied to an ink film 10 and a bleaching film 11 has a bleaching agent layer formed thereto by applying microcapsules of a bleaching agent. When the bleaching film 11 is heated corresponding to image data by a thermal head 12, the microcapsules are cured to form a latent image. When the ink film 10 and the bleaching film 11 are superposed one upon another to be pressed by press bonding rollers 14a, 14b, the microcapsules not yet heat-set are destructed and the bleaching agent flows out of the microcapsules to bleach the unnecessary part of the ink of the ink film 10 to form an image. When this operation is performed at least over three colors of cyan (C), magenta (M) and yellow (Y) to superpose colors one upon another, a full-color image is formed and a print having long-term stability is obtained. |
