| 摘要 |
PROBLEM TO BE SOLVED: To provide a multilayer film for a laser printing, which uses paper as a base material, capable of obtaining printing excellent in visibility with less damage.SOLUTION: A multilayer film for a laser printing comprises: a paper base material layer 1; a coloring ink layer 2; and a pattern printing layer 3, they are stacked in this order. The pattern printing layer is an outermost surface layer of the film, and partially provided on the coloring ink layer, therefore there are an area B on which the coloring ink layer and the pattern printing layer are overlapped, and an area A on which there is only the coloring ink layer. The coloring ink layer develops color by radiation of laser beam of any one of green laser whose oscillation wavelength is 532 nm, fiber laser whose oscillation wavelength is 1090 nm, carbonic acid gas laser whose oscillation wavelength is 10600 nm, and YVOlaser or YAG laser whose oscillation wavelength is 1064 nm.SELECTED DRAWING: Figure 1 |
