Title:
包装袋の鮮度保持排気弁構造
Document Type and Number:
Japanese Patent JP6586493
Kind Code:
B2
Abstract:
A packaging bag fresh-keeping exhaust valve structure is an exhaust valve (10) and includes a valve body (20), a valve plate (30) and a preservative (40). The valve body includes a partition (21) to partition its internal space into a valve chamber (22) and a filling chamber (23). The partition has at least one through hole (24), so that the valve chamber communicates with the filling chamber through the through hole. The valve plate is disposed in the valve chamber. An outer peripheral edge of the valve chamber has a flange (25) extending outwardly. A surface of the flange is provided with a first sealing film (26) to confine the valve plate within the valve chamber. The preservative is disposed in the filling chamber. An inlet end of the filling chamber is provided with a breathable film (27) to confine the preservative within the filling chamber. An outer end of the breathable film is provided with a second sealing film (29). Figure 3.
Inventors:
Simplified Pyeong
Easy Cheap
Easy Cheap
Application Number:
JP2018150912A
Publication Date:
October 02, 2019
Filing Date:
August 09, 2018
Export Citation:
Assignee:
Kawamoto International Packaging Co., Ltd.
International Classes:
B65D81/26; F16K24/04
Domestic Patent References:
| JP2014076858A | ||||
| JP58183468A | ||||
| JP1084875A | ||||
| JP2166074A | ||||
| JP3218872U |
Attorney, Agent or Firm:
Keiji Nemoto
Eiichi Ohara
Eiichi Ohara