| 摘要 |
Trays are known with two waterproof plastic plies, between which an absorbent paper insert is located, the upper ply (12) having openings (14) for passage of liquid. Re-use of these trays requires separation of the insert from the other plies. According to the invention, the insert (13) also consists of a plastic, i.e. of an open-cell foam plastic. All three plies (11, 12, 13) are compressed together in the area of a surrounding rim (21) so that the insert (13) is no longer open-celled or absorbent in this area.
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