| 摘要 |
<p>PURPOSE:To perform the clearer printing safe to human bodies by providing a coloring agent on a false tooth or the dental plate by means of coating, irradiating it with laser beams, and removing the unnecessary coloring agent. CONSTITUTION:A coloring agent containing at least an edible coloring matter is provided on a false tooth or the dental plate by means of coating, and irradiated with laser beams. The coloring agent is thus fixed on the false tooth or the dental plate by fusion and dyeing. The use of laser allows the easy printing and certain fixation to the false tooth or the dental plate which are not flat in general. As the coloring matters, pigments and/or dyes are used, and coloring matters of dark system such as black are preferably used. The coloring matters of dark system enhance laser absorbing efficiency and ensure the printing with less energy. After irradiation with laser, the coloring agent is removed with the printed part being left, or including the printed part. Even in the case of removing all the coloring agent, the laser absorbing efficiency by the coloring agent is enhanced, and a readable stamp can effectively be formed. When the coloring agent is left, edible coloring matters are preferably used.</p> |
