| 摘要 |
PROBLEM TO BE SOLVED: To provide an inspecting method and an inspecting device of a handle film of a packaging bag of a thin paper-accommodating box assembly enabling a person to inspect whether or not the handle film is attached to the packaging bag body without spoiling appearance. SOLUTION: In the inspecting method, both ends P2a and P2a in the lengthwise direction of the handle film P2 are bonded to both narrow side surfaces P1a and P1a facing each other with the upper surface of the bag body P1 placed between them so that a non-bonded area A1 including the front end P2b in the lengthwise direction of the handle film P2 and a bonded area A2 neighboring to the non-bonded area A1 and bonded to the packaging bag body P1 are provided at both the ends P2a and P2a in the lengthwise direction of the handle film P2. The non-bonded area A1 is erected by blowing air from the downward surface of the packaging bag body P1 to the upper surface, and the erecting non-bonded area A1 is detected. COPYRIGHT: (C)2010,JPO&INPIT
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