| 摘要 |
A member for masking films which includes a base film transparent to ultraviolet rays and, on one surface thereof, an ultraviolet-shielding resin layer capable of being removed by irradiation with laser light beams and haivng an average thickness of 0.1 to 30 µm, wherein the ultraviolet-shielding resin layer is a multilayer structure composed of two or more layers including a resin layer (A) having a high carbon black content and a resin layer (B) having a low carbon black content, the layer (A) and the layer (B) being located on the base-film side and on the printing-plate side of ultraviolet-shielding resin layer, respectively, and the ultraviolet-shielding resin layer has specific optical properties. This member for masking films has the following features: the accurate and precise removal of the ultraviolet-shielding resin layer using a low-energy laser beam gives areas with uniform light transmittance; the ultraviolet-shielding resin is resistant to scratches; and positioning is easy, and when making close contact with a plate, air trapping is less likely to occur so that the entire surface easily comes into close contact with a printing material. |
