| 摘要 |
PURPOSE:To close the opening of a moistureproofing paper bag in a manner wherein an inner layer tubular body can be taken out from an outer layer tubular body during or after the use of the bag contents, even if the opening part layers thereof are attached together in such a way that the bag opening parts can be opened by suction upon filling the bag with its contents. CONSTITUTION:In a bag body 14 comprising in combination an inner layer tubular body 11 consisting of a heat-sealable material and an outer layer tubular body 12 consisting of kraft paper, the bottom part thereof is bent back close to the center from a heat sealing part 15 and is enclosed with a contacting paper 17 with an opening tape 16. Moreover, in a moistureproofing paper bag 10 having the auxiliary flaps 19 and 20 with opening tapes 23 attached to the outer wall of the bag opening part, the end part including the attaching parts of the opening parts of the bag body 14 is slit after filling the bag with its contents, its lower parts are heat sealed, the opening parts are folded and the auxiliary flaps are attached together with hot melt to seal the bag. |
