| 摘要 |
A container (10) (eg; a thermoplastics inner bag within a kraft paper outer bag) suitable for a particulate material or containing a particulate material, wherein, as a venting feature to have a venting mode and a non-venting mode so as to favour one way gas passage outwardly of the container (10), there are slits (13) in the wall overlaid with a label (11) having slits (12) not in register with those of the wall. The label (11) is affixed so as to be able, in use. In a venting mode, under the influence of a gas from within the container (10), to separate or billow outwardly sufficiently to allow a venting of at least some of that gas out of the slits (12) of the label (11), and, in a non-venting mode, to assume a substantially unseparated or non-billowing form to restrict ingress of gas into the container (10) from outside of the l abel (11) and restrict or at least reduce passage through the venting feature of any particulate material from the container (10).
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