| 摘要 |
<p>The bag has a closable filler opening formed by a sleeve (14) which is secured below the top flaps (3a,4a) of the bag by adhesive. The inward end of the sleeve is reinforced by an adhesive strip (parallel dotted lines) whose two ends are stuck to the inner side walls of the bag. These side walls may consist of layers which are stuck together in the areas where the strip is secured. The strip is pref. at least 2 cm wide. A rectangular reinforcing sheet (16, ends 17,18) may be stuck inside the folded top and have a narrow area near its outer edge (17) stuck to the sleeve (14).</p> |
