The invention concerns a tube for the distribution of a paste with stripes in which the head 1 which is connected by moulding to the skirt 4 of the tube has an inner skirt 8 which is in one piece with said head 1, which skirt 8 having flow openings 13, 14 for the stripe product, which skirt 8 has pairs of inner longitudinal ribs 17, 18, 22 for guiding the stripe product, disposed on respective sides of said openings 13, 14 and extending towards the top of the neck portion 7. The head of the tube is of a double skirt configuration, its outer skirt 16 forming the outside of the neck portion 7 and its inner skirt 8 extending from the top 5 of the head 1 and forming the inside of the neck portion 7 and the discharge duct 8 for the pasty product. Flow openings 13, 14, 15 are disposed in part at least above the notional extension of the slightly inclined rear surface 10 of the shoulder 2. The inner skirt 8 carries inner longitudinal ribs 26, 35 for retarding the flow of the main pasty product, and the ribs comprise ribs 26 extending from each flow opening 14 to at least the lower third of the portion of the skirt 8 which is disposed below the opening 14.
A headed thermoplastic tube is formed solely from a thermoplastic extruded, stretched, cylinder by positioning the cylinder over a forming mandrel with an exposed portion. The inner surface of the exposed portion is heated above the glass transition temperature of the thermoplastic material to render the inner surface molten while the outer surface provides support for the exposed portion of the cylinder. The heated exposed portion is then shaped into a conical shape, such as by heating the outer surface, and pressure applied to the conical shaped exposed portion to form a headed thermoplastic tube. The headed tubes produced have a body portion, shoulder portion and neck portion, without any seams, all of which are formed from the starting thermoplastic extruded, stretched cylinder.
