Title:
包装袋
Document Type and Number:
Japanese Patent JP6835111
Kind Code:
B2
Abstract:
To provide a packaging bag capable of being opened by tearing it from a notch and opened by straightly tearing it up to the last part.SOLUTION: In a packaging bag: a notch 6 which is an opening start place is provided at least at one side of a side edge part; approximately V-shaped or approximately U-shaped opening guide lines 7 comprising cuts are provided at both front surface side and rear surface side on a base material layer of both front and rear surfaces in the vicinity of a bag center side from the notch 6 so as to converge to the bag center side; linear opening schedule lines 8 comprising cuts are provided on the base material layer of both front and rear surfaces from the tip where the opening guide lines 7 converge to the bag center side; further, at least one or more linear opening auxiliary lines 9 comprising cuts in parallel to the opening schedule lines 8 are provided respectively at both sides of the opening schedule line 8 on the base material layer of both front and rear surfaces in a state in which they do not cross the opening guide lines 7; and even when tearing is out of the opening schedule lines 8, a cutting property is retained by guide of the opening auxiliary lines 9 at an outside.SELECTED DRAWING: Figure 1
Inventors:
Daisuke Tanaka
Kaoru Watanabe
Kaoru Watanabe
Application Number:
JP2019017953A
Publication Date:
February 24, 2021
Filing Date:
February 04, 2019
Export Citation:
Assignee:
Dai Nippon Printing Co.,Ltd.
International Classes:
B65D33/00; B32B3/30; B32B27/00
Domestic Patent References:
| JP2003300538A | ||||
| JP2002002790A | ||||
| JP2012096840A | ||||
| JP2008100496A | ||||
| JP2013154605A | ||||
| JP11240543A | ||||
| JP8324597A |
Attorney, Agent or Firm:
Hiromi Fujimasu
Keiko Fukamachi
Hideo Ito
Naoki Goto
Hideyuki Tateishi
Keiko Fukamachi
Hideo Ito
Naoki Goto
Hideyuki Tateishi