Abstract: A packaging foil for foods and other everyday goods, the foil being composed of two or more barrier layers as well as plastic coatings between the barrier layers and which form the outer surfaces of the foil; in addition, the invention provides for a method of manufacturing the foil. With the object of achieving a thin, stiff and accordingly advantageous foil, the packaging foil has been formed by joining together and sealing sheets containing one barrier layer, one side of said sheets having been covered with a layer of plastic intended for the protection of the inner layer and outer layer and the other side with a layer of plastic intended for separating and insulating the barrier layers.

Abstract: A tube end piece for a separately manufactured tube mantle and method for assembly. The solutions presented in prior art for providing tube mantles with an end piece are generally satisfactory, except that the number of manufacturing steps is large compared with conventional manufacturing methods. With the aid of this invention, one step at least can be eliminated in the joining of the end piece and the mantle. The end piece is provided with an annular extension which can be pressed down so that it remains in its place, clamping the interposed mantle fast to the end piece. Thus by using the tube end piece it becomes possible to perform the joint seaming of the end piece to the tube mantle in one work step.

Abstract: Disclosed is a can body for a case, e.g. for an aerosol container, made of metal, such as aluminum. The thickness of the material of the cylindrical mouth section of the can body is greater than that of the other mantle sections of the can body. Below the mouth section the other surface of the mantle of the blank is polygonal as far as the lower section of the can body, the greatest outer diameter of the polygon being smaller than or equal to the outer diameter of the mouth section. The outer surface of the lower mantle section of the can body is cylindrical, the outer diameter of the cylinder being smaller than the smallest outer diameter of the polygonal section of the mantle. The inner surface of the mantle of the can body is cylindrical over its entire length. Disclosed is additionally a device for manufacturing the can body by cold extension of metal, e.g.