Title:
HERMETICALLY SEALED PACKAGING CONTAINER
Document Type and Number:
Japanese Patent JPH09267862
Kind Code:
A
Abstract:
To provide a hermetically sealed packaging container which is neither required to peel off a seal material before cooking nor required to install a safety valve causing increase of cost and which is easy in the production and excellent in the design and which can be heated in an extremely low cost microwave oven.
Heat-resistant resin films 1, 2 are superposed to form double layers and the films are stuck to each other at both ends and folded to make a double-layer bag. In this time, they are folded in such a way that an opening 5 is provided in the outer bag 8 so that the inner bag can swell out. The ends of the heat-resistant resin films 1, 2 superposed and folded double are sealed in the right angled crossing direction.
Inventors:
NISHIMURA EIICHI
ATSUMI TAKASHI
UTSUKI EIJI
ATSUMI TAKASHI
UTSUKI EIJI
Application Number:
JP10394596A
Publication Date:
October 14, 1997
Filing Date:
March 29, 1996
Export Citation:
Assignee:
SANAI KK
SHOWA ALUMINUM CORP
SHOWA ALUMINUM CORP
International Classes:
B65D81/34; B65D30/14; B65D75/38; B65D77/04; (IPC1-7): B65D75/38; B65D30/14; B65D77/04; B65D81/34
Attorney, Agent or Firm:
Kikuchi Seiichi
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