PRESENCE INDICATOR FOR REMOVABLE TRANSPARENT FILM

摘要

PROBLEM TO BE SOLVED: To make it possible to recognize visually the existence of a removable transparent film. SOLUTION: There are arranged a substrate 10 carrying the removable transparent film 30 which can be removed by a desired washing process from the surface and the removable presence indicator 90 associated with the removable transparent film, and the presence indicator can be removed by the same desired washing process with that for the removable transparent film. A method for production of a substrate by bringing the presence indicator into contact with the removable transparent film, and a method for washing the substrate by bringing the presence indicator into contact with the removable transparent film are also disclosed. COPYRIGHT: (C)2005,JPO&NCIPI