ADHESIVE SHEET

摘要

An adhesive sheet enabling the prevention of occurrence or removal of air reserved parts and blisters by through holes, enabling the through holes to be less visible on the surface of a base material, and enabling its appearance to be well maintained even under a liquid adhering environment after sticking. The adhesive sheet (1) comprises the base material (11) and an adhesive agent layer (12). The plurality of through holes (2) passed from one face to the other face of the adhesive sheet are formed by laser beam machining. The hole diameter of the through holes (2) on the surface of the base material is 0.1 to 42 mum, the hole diameter of the through holes (2) on the adhesive surface of the adhesive agent layer (12) is 0.1 to 125 mum, the volume V (mum<3>/quantity) of the base material (11) and the adhesive agent layer (12) per through hole (2) meets the requirement of the following expression (1), 8.00 x 10<-3> <= V/T≤1.00 X 10<4> ... (1) (t: total thickness (mum) of base material (11) and adhesive agent layer (12)), and the hole density of the through holes (2) is 30 to 50,000/100 cm<2>.