| 摘要 |
A protective film formation-use composite sheet (1) is provided with an adhesive sheet (2) formed by laminating an adhesive layer (22) on one surface of a base material (21), and a protective film formation film (3) laminated on the adhesive layer (22) side of the adhesive sheet (2). The adhesive sheet (2) does not have through-holes passing through the adhesive sheet (2) in the thickness direction. The light transmittance at a 532nm wavelength for the adhesive sheet (2), measured using an integrating sphere, is 25% to 85%. This protective film formation-use composite sheet (1), while using an adhesive sheet having no through-holes, is still able to suppress the occurrence of gas accumulation between the adhesive sheet and the protective film formation film (protective film) when laser printing on the protective film formation film (protective film). |
