(19)
(11) EP 0 795 482 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
12.11.1997 Bulletin 1997/46

(43) Date of publication A2:
17.09.1997 Bulletin 1997/38

(21) Application number: 97103953.2

(22) Date of filing: 10.03.1997
(51) International Patent Classification (IPC)6: B65D 33/01, B65D 81/34
(84) Designated Contracting States:
DE FR GB

(30) Priority: 12.03.1996 JP 83325/96
12.03.1996 JP 83326/96
26.04.1996 JP 131115/96

(71) Applicant: Fuji Techno Co., Ltd.
Chiyoda-ku, Tokyo 101 (JP)

(72) Inventor:
  • Nakagawa, Shuzo
    Soka-shi, Saitama 340 (JP)

(74) Representative: Körber, Wolfhart, Dr. rer.nat. et al
Patentanwälte Mitscherlich & Partner, Sonnenstrasse 33
80331 München
80331 München (DE)

   


(54) Food product packaging bag


(57) A food product packaging bag (20) includes a bag body made of a synthetic resin (10), and an air discharge means (30) which is adapted to ensure that when the internal pressure in the bag (20) exceeds a predetermined level, air is discharged to prevent the internal pressure in said bag (20) from being risen more than a given value. Thus, when a food product is cooked in a microwave oven while remaining packed in the bag (20), it can be heated, and air in the bag expanded to rise the internal pressure. However, when the internal pressure exceeds a given level, the air is discharged to the outside through the air discharge means (30). In this manner, the food product can be cooked into a good taste.






Search report