| 摘要 |
<p>The packaging containing single use substances comprises at least two chambers (1, 2), which are isolated from each other, are connected to each other and contain different substances (5, 6), one of which is water-soluble, wherein at least one wall (3) of the chambers (1, 2) is made of a filtering paper. The packaging contains means, allowing the packaging to return to the surface when it is put in water, which is embodied either, in the form of a water-insoluble agent (11), the specific weight of which is less than that of water and which is added into the chamber (1), where the water-soluble substance (5) is also contained, and /or in the form a wall of one of the chambers (1, 2), which is made of a material, the specific weight of which is less than that of water.</p> |
