Japan Intellectual Property Rights: PACKAGING BAG AND PRODUCTION METHOD THEREOF

Japan, July 14 -- OSHIO SANGYO KK has got intellectual property rights for 'PACKAGING BAG AND PRODUCTION METHOD THEREOF.' Other related details are as follows:

Application Number: JP,2021-055675

Category (FI): B65D33/00@C

Stage: PROBLEM TO BE SOLVED: To provide a packaging bag and a production method thereof allowing packaging bags stable in quality to be produced.SOLUTION: A production method of a packaging bag 1 is provided with: a lower part bonding process of forming lower seal parts 31, 34 such that unbonded edge parts 13 are formed on upper parts of a pair of laminated side sheets 11; an opening process of opening an opening part 14 in the unbonded edge parts 13; an insertion process of inserting a spout 21 in the opening part 14; ...