The present invention relates to an identification card, a method of manufacturing the same, and a substantially anisotropic heated and polished polyethylene terephthalate resin sheet (resin sheet)

摘要

There is provided an identification card which has a long-term storage stability even in a high-temperature use environment and which does not generate toxic gas upon erasure, a method for producing the same, and a substantially unoriented heated and polished polyethylene terephthalate resin sheet for use in the method Purpose. A desired portion of the substantially unoriented heated and polished polyethylene terephthalate resin sheet having a tensile rigidity at 100C of 1 x 10 2 kg / mm 2 or more is pressed by heating at 160C for 1 minute A step of forming a concave portion and then heating to fix the substantially unoriented heated and polished polyethylene terephthalate resin sheet; and an identification signal generating means for generating an identification signal identifiable by the identifier on the concave portion The identification card was manufactured.