| 摘要 |
A plastic bag has an enhanced-friction patch (10) provided at or near the top of its side walls, formed e.g. by knurling, stippling or perforation. The patch (10) facilitates manual gripping of the side walls, making it easier to separate them when opening the bag. The advantage is most pronounced with mass-produced plastic bags of very thin material e.g. less than 50 mu m. <IMAGE> |
