| 摘要 |
<p>The packaging is an asymmetric polyhedral bag with expandable walls, obtained by shaping and tubular welding. It has two, top and bottom, welding edges, on one side two folded-in corners forming bellows and on the other side a tubular channel (14). After opening the covered end of the channel (14), the latter acts as a syphon allowing the withdrawal of a portion of the liquid easily and without causing any intake of air. The channel (14) is formed by bringing together two sections of a packaging wall and clamping them with a clamp (13) intended to be attached to it during its use. <IMAGE></p> |
