| 摘要 |
PROBLEM TO BE SOLVED: To provide a laser color developing laminated body for PTP package, on which a commodity code number, the term of validity, the number of manufacture or mark of manufacture, the RSS code including quantity or added information, the QR code or the like can be marked by irradiation with laser light, by forming a laser-color-developing layer on an aluminum foil of a PTP package body. SOLUTION: The PTP package is constituted of a bottom member made of a shaped transparent plastic sheet and a lid member made of aluminum foil. A laser color developing laminated body for PTP package including a laser-color-developing layer and a surface protective layer is provided on the aluminum foil on the opposite side of the transparent plastic sheet. A laser recording method is also disclosed. COPYRIGHT: (C)2009,JPO&INPIT
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