Case for products such as moist wipes

An article comprising sheet products arranged in a pile, said sheet products being located inside a distributing case having means for making the case air-tight and water-tight and an opening device arranged on one face of the case, said opening device comprising an open cap prolonged by a peripheral adhesive border and surrounded at least partly by a break-off line, the break-off line being a non-closed curved line extending, at each of its extremities, to the vicinity of an edge of the case without coming into contact with said edge, said edge further having a dispensing aperture, each of said sheet products presenting on a face turned towards the dispensing aperture a prehensile corner located in a median zone of a front face, the prehensile corner of a first sheet product to be distributed being placed in front of the dispensing aperture of the case, each of said sheet products being folded and having a first pleating following a first direction in such a way that at least two rectangles of different widths are superposed and a second pleating following a second direction perpendicular to the first direction so that a rectangle of smaller width appears on the outside of the folded product.