Abstract: A dual compartment package for containing reactive substances in separate compartments which is suitable for being produced continuously from a single web of film material, and a method for making same. The web of film is formed into a tubular member having a first compartment which assures a generally circular cross section when filled, and a second compartment formed inside the first compartment. The second compartment is attached to the sidewall of the first compartment such that a single sealing formation through three plies of the film material closes both compartments longitudinally. The method provides for a simplified formation of a series of said packages wherein only a single seal forming apparatus is utilized.

Abstract: An apparatus for continuously producing a series of multi-compartment packages formed from a single web of pliable film material. The machine folds the web along one of its side edges to form a pocket or two-ply margin. The web is then passed through a tube former which bends the web across its width until a continuous tube is formed with the two-ply margin to the inside and overlapped by the opposing side edge of the web. The apparatus then seals the tube with a single composite seal across the overlapped portion of the tube, which is of three-ply thickness. Next, the apparatus positions differing substances in each compartment. Then, the apparatus sequentially gathers the filled tubular member at two positions along its length, seals the gathered portions by clinching pairs of closure clips therearound, and severs the film material between the clips in each pair thereof to form the package.