Carton with self-sealing reclosable end closure

In a rectangular carton having opposing side and end walls forming a carton body, a self-sealing reclosable end closure comprising a pair of opposing end closure flaps hingedly connected to the end edges of the carton side walls, said end closure flaps having a width somewhat greater than one-half the width of the carton end walls, a pair of mating sealing flaps hingedly connected to the outermost side edges of said pair of end closure flaps, a flap extension hingedly connected to the outer side edge of one of said sealing flaps, and a tubular liner in said carton body, the mouth of said liner projecting from said carton body to overlie said flap extension, the mouth of said liner having its opposite sides secured to said sealing flaps, said sealing flaps being juxtaposed in face-to-face parallel relation to the carton side walls with portions of the liner mouth sandwiched therebetween, said sealing flaps and the projecting end of the liner being jointly displaceable downwardly to lie within the confines of the carton body and with said opposing pair of closure flaps extending downwardly and inwardly within the carton to bias the sealing flaps and the portions of the liner mouth secured thereto into engagement with each other, said flap extension and the portion of the liner mouth overlying said flap extension being jointly foldable over the upper edge of the other of said sealing flaps, and attachment means for securing said flap extension in its folded position.