Title:
積層フィルム及び包装袋
Document Type and Number:
Japanese Patent JP6769151
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a packaging bag capable of preventing the bag from bursting due to carbon dioxide gas generated after sealing roasted coffee beans or coffee obtained by grinding the coffee beans, into the bag, with a lower production cost, and also to provide a laminate film therefor.SOLUTION: There is produced a laminate film composed of a linear low-density polyethylene resin, and including a thermo-fusible inner layer and an outer layer composed of a thermoplastic resin having an aluminum vapor-deposited layer laminated on the inner layer. The laminate film includes a fragile processing part composed of a half-cutting groove having a depth of at least the same as a thickness of the outer layer, from the outer layer to the inner layer, and not deep enough to penetrate the inner layer. A bag is made using the laminate film and filled with a content.SELECTED DRAWING: Figure 1
Inventors:
Ryuta Sasaki
Application Number:
JP2016145406A
Publication Date:
October 14, 2020
Filing Date:
July 25, 2016
Export Citation:
Assignee:
Toppan Printing Co., Ltd.
International Classes:
B32B15/085; B32B9/00; B32B38/10; B65D33/01
Domestic Patent References:
| JP2016068416A | ||||
| JP2015013441A | ||||
| JP2003145666A | ||||
| JP2005169772A | ||||
| JP2008207865A | ||||
| JP2007269362A |
Foreign References:
| US20160185504 |