Title:
包装袋
Document Type and Number:
Japanese Patent JP6842863
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a packaging bag without generating a cut piece, which can suppress wrong opening, for example, prevent an infant from easily opening it, and which an adult can easily open with a simple opening operation.SOLUTION: A packaging bag includes: a longitudinal seal part formed by heat-sealing a packaging film in a longitudinal direction; and an upper side lateral seal part and a lower side lateral seal part formed by heat-sealing the same in a lateral direction. The packaging bag is formed with a narrow extraction passage provided on at least one folded back side edge of the upper side lateral seal part. The packaging bag has at least one seal opening crack at a position near the extraction passage on the upper side lateral seal part, and is provided in such a manner that a relation between a distance A of an extension line from an end on the longitudinal seal part side of the seal opening crack to a side end edge, an upper end edge or a lower end edge on the longitudinal seal part side of the upper side lateral seal part and a distance B of an extension line from an end on the folding back side to a position where it crosses a folding back side end edge, satisfies A>B.SELECTED DRAWING: Figure 1
Inventors:
Hidenori Kogure
Hiroki Chino
Hiroki Chino
Application Number:
JP2016176612A
Publication Date:
March 17, 2021
Filing Date:
September 09, 2016
Export Citation:
Assignee:
Taisei Lamick Co., Ltd.
International Classes:
B65D75/58; B65D33/00; B65D33/38
Domestic Patent References:
| JP2008074464A | ||||
| JP2013216371A | ||||
| JP2007326641A |
Foreign References:
| US20150353237 |
Attorney, Agent or Firm:
Ginza Marronnier Patent Office