| 摘要 |
PROBLEM TO BE SOLVED: To provide a holeless bag for polished rice, which has openings for quickly discharging excess air upon filling the bag with polished rice, blocks the circulation of air during the distribution or storage of the rice, and is manufactured easily. SOLUTION: The holeless bag for polished rice has vertical welded parts, having a plurality of scattered welding blocking parts, each 2 to 5mm wide. The welding blocking parts are formed by printing the parts of sealant layers that are to form the vertical welded parts and their extended parts intermittently with a welding blocking agent composed mainly of a silicone resin and a cellulosic resin, and welding the sealant layers vertically. Each vertical welded part is 6 to 12mm wide, and the sealant layers are made of polyethylene. COPYRIGHT: (C)2004,JPO
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