ADHESIVE SHEET, METHOD OF ADHERING ADHESIVE SHEET AND METHOD OF PRODUCING ADHESIVE SHEET

摘要

PROBLEM TO BE SOLVED: To provide an adhesive sheet allowing an apparatus to recognize the direction of an adherend, a method of adhering an adhesive sheet and a method of producing an adhesive sheet.SOLUTION: An adhesive sheet AS includes a substrate sheet BS and an adhesive agent AD layer laminated on one side of the substrate sheet BS, and the adhesive AD layer is composed of a first adhesive AD1 layer and a second adhesive AD2 layer different in ultrasonic reflection characteristics from the first adhesive AD1 layer, laminated in a neighboring state in the same plane. The adhesive sheet AS thus has a boundary CL capable of identifying the direction of an adherend WF when adhered to the adherend WF according to a specified principle.