| 摘要 |
<p>PURPOSE:To avoid to make a worker unpleasant in a plate making process by making the outermost surface of a masking film transparent for visible light area or by coloring the outermost surface into yellow color with a yellow coloring agent. CONSTITUTION:The masking film consists of a transparent supporting body and a transparent light-shielding peeling layer containing a coloring agent. This light-shielding peeling layer consists at least two layers and the outermost layer of these is made transparent for visible light or colored into yellow with a yellow coloring agent. Namely, the outermost layer is made transparent or colored into yellow. It is not required to add a coloring agent for a transparent film, however, if required, various UV absorbing agents may be added. This light-shielding peeling layer is formed on the transparent supporting body with a pressure-sensitive adhesive layer interposed. Thereby, even when the surface is shaped, hands, cloths or working benches are not soiled so that the worker does not feel unpleasant.</p> |
