Abstract: The invention relates to an apparatus for packaging objects, like soiled diapers, into an elongated flexible plastic tube. The apparatus includes a container with an upper portion with an opening and a lower portion. A cassette is mounted in the upper portion of the container coaxially with the opening to store a tube in a compacted form. A plunging device is provided to compress the object to be disposed of, and to push it into the tube and then to the bottom part of the container. The plunging device includes biased flaps and biased slides orthogonal to the arms which permits to push the object down while allowing a hermetic seal of the flexible tube to prevent escape of bad odours.