Title:
BAG BODY FOR HOLDING FRESHNESS AND MANUFACTURING METHOD THEREOF
Document Type and Number:
Japanese Patent JP2019194111
Kind Code:
A
Abstract:
To provide a bag body for holding freshness with very little in-flow of oxygen from the outside of the bag body which can hold freshness of contents for a long period, and a manufacturing method thereof, etc.SOLUTION: According to this invention, in a bag body for holding freshness 100 which is formed by a film 1, the bag body comprises a band-like connection region 6 in which two end portions 1a, 1b of the film are superposed and connected, and of which the width is from 5 mm to 15 mm, and the connection region has a plurality of supersonic connection portions 8 with the two end portions of the film connected mutually, and non-connection portions 10 which are arranged between the adjoining supersonic connection portions and where the superposed end portions of the film are not connected mutually, and the non-connection portion forms a non-straight air passage which communicates an inside space of the bag body and the outside of the bag body, and a width W of the air passage is 0.2 mm≤W≤3 mm, and a length L is 20 mm≤L≤50 mm.SELECTED DRAWING: Figure 1
Inventors:
WATANABE TORU
Application Number:
JP2019144654A
Publication Date:
November 07, 2019
Filing Date:
August 06, 2019
Export Citation:
Assignee:
WAT INC
International Classes:
B65D85/50; A23B9/20; A23L3/3445
Domestic Patent References:
| JP2018016403A | 2018-02-01 | |||
| JP2011037521A | 2011-02-24 |
Foreign References:
| WO2018034344A1 | 2018-02-22 | |||
| WO2018064340A1 | 2018-04-05 |
Attorney, Agent or Firm:
Shinichiro Tanaka
▲吉▼田 和彦
Mitsuru Matsushita
Ichiro Kurasawa
Yasushi Yamamoto
▲吉▼田 和彦
Mitsuru Matsushita
Ichiro Kurasawa
Yasushi Yamamoto