| 摘要 |
Wrapper-type packaging made of a flexible plastics sheet material in the form of a sack or bag and consisting of a front wall and a rear wall, which are located opposite one another and are sealed in each case by a side sealing seam to form a flexible sack-like or bag-like tube, of which the opening is covered by a closure flap which is formed by a projection of the rear wall and is folded onto the front wall at least as far as, and preferably beyond, the opening and is closed by in each case longitudinal sealing and, possibly, transverse sealing or adhesive bonding, the opening of said flexible tube preferably having an opening aid, wherein the flexible plastics sheet material is oriented at least uniaxially and, possibly, is embossed and has a tear-propagation resistance in the machine direction which differs by at least 30% in relation to the tear-propagation resistance in the direction transverse to the machine direction. |
