FIELD: packing containers. SUBSTANCE: invention relates to hermetically sealed cardboard base containers with flat top. Container has rectangular hose with upper end face sections connected with side walls along folding lines. Upper end face sections are divided into inner and outer opposite pairs folded to each other. Each upper end face section is provided with cutout. Cutouts define hole provided with edge including open cardboard base. Each inner pair of opposite end face sections is divided into middle section and opposite side sections. Opposite side sections are folded on middle section and laid between middle section and outer pairs of opposite sections. Opening sealing device passes through hole and includes flange arranged inside container. Flange covers projecting edges of hole. EFFECT: facilitated manufacture of cardboard base container which is hermetically sealed, saving of packing material per unit of volume. 10 cl, 15 dwg
