| 摘要 |
PROBLEM TO BE SOLVED: To provide a synthetic resin bag with an easy opening function which facilitates peeling from the opening side and prevents peeling from the inside of the bag. SOLUTION: The synthetic resin bag comprises two surface and rear trunk films 1a, 1b. Two easily peelable tapes 4a, 4b which each comprises an easily peelable layer and a heat sealing layer and allow the opposite easily peelable layers to adhere with each other weakly 6 facilitate peeling from the bag opening 2 side and prevent peeling from the inside of the bag by strongly adhering 5a, 5b the heat sealing layers to trunk films 1a, 1b with difference in an adhesion width between C1 and C2 in the width direction of the easily peelable tapes 4a, 4b orthogonal to the lateral width direction of the bag across a whole lateral width inside the respective trunk films 1a, 1b of the bag opening 2. COPYRIGHT: (C)2008,JPO&INPIT
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