| 摘要 |
PROBLEM TO BE SOLVED: To provide a storage bag of polished rice capable of obtaining the consistent air permeability without causing any wrinkle of a vent part by the distortion. SOLUTION: The storage bag 1 is made of a sheet 4 with a layer 2 thereof constituting at least an inner surface side consisting of a synthetic resin, and stores granular content such as polished rice therein. A vent part 7 is formed in a separating state of a heat-seal part 5 on at least one of ridges to be joined by the peripheral heat seal. The vent part 7 is formed of uneven parts 6 on two sheets 4, 4 to be joined by the heat seal so that the storage bag 1 may be inclined in the longitudinal direction with respect to the short direction or the long direction, and the uneven parts 6 of two respective sheets 4 are inclined in the longitudinal directions opposite to each other. COPYRIGHT: (C)2010,JPO&INPIT
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