Title:
PACKAGING FILM
Document Type and Number:
Japanese Patent JP2018135114
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a packaging film allowing increase of a gas permeation amount according to the user's requirement, and having excellent MA packing effect.SOLUTION: A packaging film has a gas permeation part in a plastic film substrate 11, allowing permeation of gas. The gas permeation part comprises one slit row 12L formed by arranging multiple first slits 12A that are formed by recessing the film substrate 11 by a predetermined depth from one face to the other face to expand bottom parts outward from the other surface, and are formed to have the thinnest thickness at the bottom parts by gradually thinning from openings toward the bottom parts, and multiple second slits 12B having through-holes drilled on the bottom parts of the slits. On the slit row, the number of the first slits 12A is set larger than the number of the second slits 12B by dozens of times and mixedly arranged in the film substrate 11.SELECTED DRAWING: Figure 1
More Like This:
| JP2001130649 | ANTI-GERM PROCESSED CARDBOARD SHEET |
| WO/2002/018215 | CONTAINER OBTAINED BY FOLDING A SHEET OF PAPER OR CARDBOARD |
Inventors:
YAMAMOTO MASAKAZU
KURIHARA YASUHIRO
KURIHARA YASUHIRO
Application Number:
JP2017029650A
Publication Date:
August 30, 2018
Filing Date:
February 21, 2017
Export Citation:
Assignee:
FUKUOKA MARUMOTO KK
International Classes:
B65D85/50; B65D81/26
Domestic Patent References:
| JP5705635B2 | 2015-04-22 | |||
| JPH09252718A | 1997-09-30 | |||
| JPH09104443A | 1997-04-22 | |||
| JP2011098772A | 2011-05-19 | |||
| JP2002019870A | 2002-01-23 | |||
| JP2002165555A | 2002-06-11 |
Foreign References:
| US20130064481A1 | 2013-03-14 |
Attorney, Agent or Firm:
Patent corporation techno terrace