Title:
FLEXIBLE PACKAGE
Document Type and Number:
Japanese Patent JP2018008725
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a flexible package having a gas injection part, capable of suppressing seal peeling of a gas injection part.SOLUTION: A flexible package has at least a first side surface film and a second side surface film, and peripheral edge parts of these films are sealed, a part surrounded by the peripheral edge parts functions as a storage part, and on one or both of two side edge parts, one or more gas injection parts are provided, the gas injection part being surrounded by a sealed area, in which, an area sandwiched by two parallel sides extending in a vertical direction over a prescribed length not being sealed, and to which the gas being injected. On a position above the gas injection part, a notch penetrating the first and second side surface films is formed, and an upper end side of the gas injection part is an upward salient curve shape connected to the two sides, an angle formed of a tangent on the connection part with the sides, and an extension direction of the sides, is 75° or less, and a shortest distance between the gas injection part and the notch, is 5 mm or more.SELECTED DRAWING: Figure 2
Inventors:
YANAGIUCHI MIKIO
Application Number:
JP2016139413A
Publication Date:
January 18, 2018
Filing Date:
July 14, 2016
Export Citation:
Assignee:
TOPPAN PRINTING CO LTD
International Classes:
B65D30/22
Domestic Patent References:
| JP2014141286A | 2014-08-07 | |||
| JP2015199497A | 2015-11-12 |
Foreign References:
| WO2015015789A1 | 2015-02-05 |
Attorney, Agent or Firm:
Patent business corporation Ogasawara patent office