Patent ID: 11878853
Assignee: TOYO SEIKAN GROUP HOLDINGS, LTD.
Field: Handling (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. A packaging bag unsealed from a first side to a second side opposed to the first side, comprising:
an inclination seal part at a corner provided consecutively to the second side, wherein
the inclination seal part has a strong-pressure seal zone along an inner edge of the inclination seal part, the strong-pressure seal zone being pressed by a higher pressing force than other parts of the inclination seal part, and being smaller in thickness than other parts of the inclination seal part,
the packaging bag includes, along the inner edge of the strong-pressure seal zone, an inner edge side protruding strip part in which a sealant resin pushed by pressing out from the strong-pressure seal zone accumulates, and
at an outer edge of the strong-pressure seal zone, the thickness of the packaging bag continuously shifts without level differences from the strong-pressure seal zone to a part adjacent to the outer edge of the strong-pressure seal zone of the inclination seal part.