US 47252474 A description as shown in fig1 and 2 a melt blown die head 10 is supplied with heated plastic under pressure through a line 11 from a heater and extruder delivery mechanism 13 the head is provided with a supply of plastic and a flow of heated air and ancillary mechanism for providing these materials is described further in the above referred to copending applications and in my copending applications ser no 427 727 filed dec 26 1973 now u s pat no 3 905 734 the drawings and descriptions of which are incorporated herein by reference the die head 10 is preferably formed in two mating parts 10a and 10b which are fitted together to form a plastic flow chamber 12 therein it will be understood that the die head 10 can be formed as a single unit such as by being cast in a cast construction the various capillary tubes 15 will be cast into the material of the die head 10 where the die head is formed of mating parts the tubes are clamped between the parts 10a and 10b the plastic material flows downwardly and into a plurality of small parallel flow passages 14 which are of the same size and are uniformly spaced from each other being aligned in a row.