Sealed container for liq. materials - has apertures at regular intervals and sealed by sheet of transparent material

摘要

The packing is partic. for liqs., having windows or apertures allowing a visual check of the contents. The apertures (2) are situated at regular intervals (3) and sealed by a transparent sheet (4) or similar material. The intervals can correspond to a particular measurement of vol., and the sheet can be of light-absorbent material. There can be a protective sheet over the apertures, and which can be pulled off. The apertures can also be offset from each other. The design allows the level of the contents to be checked, as well as their nature and condition.