| 摘要 |
PROBLEM TO BE SOLVED: To provide a rice bag whose fastener is not opened with the internal pressure when air is evacuated out of the bag after the bag is filled with rice. SOLUTION: In a rice bag in which a fastener 7 is inserted in a mouth part of a rice bag body 1, male and female fastener tapes 8, 10 achieve the heat seal 12 to an inner surface of the rice bag body 1 only on respective upper parts, and vent holes 13 are provided in the male and female fastener tapes 8, 10. When the bag is evacuated of air by pressing the bag, the internal pressure is applied to back sides of the male and female fastener tapes 8, 10, and a male part 9 and a female part 11 are pressed against each other in the engaging direction to prevent the bag from being opened.
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