| 摘要 |
PROBLEM TO BE SOLVED: To provide a pouch package with a clear printed indication applied while preventing ink of printed characters from peeling from a date indication of the pouch package and mixing into contents of the pouch or an article with the pouch package added without affecting a film in a laminate of the package even if a laser beam is used, and also to provide its manufacturing method. SOLUTION: A date-printing ink layer consisting of color-developer-containing ink and white ink layered is put inside an outer layer film of a base film of the pouch package, and the color of the date-printing ink layer is developed by irradiation with a laser beam. COPYRIGHT: (C)2007,JPO&INPIT
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