Title:
包装袋の開封構造
Document Type and Number:
Japanese Patent JP7405492
Kind Code:
B2
Abstract:
To provide a packaging bag opening structure that enables easy tearing and opening.SOLUTION: This tearing opening method is a tearing opening structure of a packaging bag composed of a film and comprises: a perforation line A that defines an opening scheduled part of the packaging bag formed in a first part of a plane of the film; and a perforation line B that assists tearing and opening. The opening scheduled part is formed polygonal, and the perforation line B extends inside the opening scheduled part from the corner of the opening scheduled part.SELECTED DRAWING: Figure 1
Inventors:
Watashi Koizumi
Hideo Nakao
Hideo Nakao
Application Number:
JP2018021757A
Publication Date:
December 26, 2023
Filing Date:
February 09, 2018
Export Citation:
Assignee:
Osaka Sealing Printing Co., Ltd.
International Classes:
B65D65/28
Domestic Patent References:
| JP2004189294A | ||||
| JP46069284U | ||||
| JP2004276922A |
Foreign References:
| US20140096486 |
Attorney, Agent or Firm:
Taro Shimada
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