| 摘要 |
PROBLEM TO BE SOLVED: To provide a container with a port and the like which have a welding structure of a port where a pin hole hardly appears to a tripartite welding part facing a housing chamber of a port seal due to shock or the like of content fluid even when strong sealing is performed and the sheet is thinned in the case that a sheet is hard and it is hard to weld the port or seal aptitude of a sealant is deteriorated.SOLUTION: A container with a port and the like having a port for communicating an inside and an outside of a housing chamber formed in a resin bag has: a port seal where a welding base part of the port is inserted between the sheets of a port attachment part left as an opening to a part of a circumference of the housing chamber and which is welded liquid-tightly at a distal end, leaving an unwelded part at the end; and a shoulder seal welding only sheets on both sides of the port which continues to or is proximate to end edges on the housing chamber side of the port seal on the inside to the end edges on the side of the housing chamber side of the port seal, leaving the unwelded part near the port. |
