发明申请
US20170015478A1 PACKAGING 审中-公开
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PACKAGING
摘要:
Wrapper-type packaging composed of a flexible plastics sheet material in the form of a sack or bag having a front wall and a rear wall, which are located opposite one another and are sealed 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 the opening and is closed by longitudinal sealing and, possibly, transverse sealing or adhesive bonding, the opening having an opening aid, wherein the flexible plastics sheet material is oriented at least uniaxially and optionally is embossed and has a tear-propagation resistance in the machine direction which differs by at least 30% from the tear propagation resistance in the direction transverse to the machine direction.
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