Photopressure-sensitive adhesive sheet attached to the separation layer

Abstract

The invention relates to a pressure-sensitive adhesive plate (X) which is an optically sensitive pressure-sensitive adhesive plate attached to a separator consisting of a pressure-sensitive adhesive layer (20) and a separator layer (10) arranged on one side in the thickness direction of the pressure-sensitive adhesive layer (20). In the pressure-sensitive adhesive plate (X), the proportion of the total projected area of ​​impurities with a maximum length greater than or equal to 1 µm and less than or equal to 30 μm is less than or equal to 20%, and the number of impurities with a maximum length greater than or equal to 30 μm is less than or equal to 1, in the projected plane of the plate according to the predetermined evaluation method. S