| 摘要 |
A bag (10), made preferably from layered plastic film, comprises a main longitudinal portion (10') defined by a front wall (12) and an opposite rear wall (14), with respective lateral pleats (16a, 16b, 18a, 18b) interposed in the lateral zones, and a longitudinal end portion (10") without pleats, where the front and rear walls (12, 14) are directly face to face. Means (30) are provided for tearing the bag open to form a product outlet mouth (31). The tear means (30) forming the outlet mouth (31) are provided at the longitudinal end portion (10") of the bag, in the lateral zone of this portion situated on the extension of the respective pleat (18). The tear means extend only partly across the width of the bag. The bag also comprises means (40) for opening and closing the outlet mouth (31), said opening and closing means (40) being provided at the tear means (30). |
