An apparatus for packing disposable objects or material into an elongated tube of flexible material. The apparatus defines a bin having a holder adapted to receive a cassette of flexible unfoldable material. A closing mechanism is positioned below the holder. The closing mechanism includes first and second portions. The second portion is biased in a closed position against the first. The second portion has a receiving surface and is slidable from the closed position to an open position through the application of a substantially downward force against the receiving surface and is slidable from the open position to the closed position under the action of a biasing force. The closing mechanism in the open position defines a passage between a top opening of the bin and a bottom portion of the enclosure, and in the closed position closes the passage.