| abstract |
(57) [Summary] [Problem] To provide a package with an oxygen indicator function that can easily confirm a change in gas atmosphere due to the occurrence of pinholes and poor sealing in a package in a deoxidized atmosphere. SOLUTION: A gas permeable container containing a medicine or food which is liable to be deteriorated by oxygen is packaged in a gas impermeable packaging material, and the inside of the package is degassed by gas replacement, vacuum, or oxygen scavenger. A package having an oxygen indicator function, characterized in that the package having an oxygen atmosphere is provided with printing an oxygen detecting portion for detecting a change in the gas atmosphere of the package by a change in color tone due to a defect of the packaging material. |