heat and thus enhance the deformability of the meltable synthetic plastic pile warp threads which are usually monofilaments immediately ahead of the beating up edge 4 the double wefts 10 11 are inserted into the two sheds a and b and each of the double wefts can also be composed of multiple thread material the beating up of the inserted wefts 10 11 against the edge 4 is effected by means of a heated reed 12 which may be heated per se or which may have its mounting structure 13 heated as will be described subsequently the temperature to which the reed 12 is heated is advantageously so high that when it beats up the wefts 10 11 it will effect a fusing or adhering of the synthetic plastic pile warp threads 5 7 with the wefts 10 11 and or the base warp thread 6 it is evident that a specific temperature cannot be given since this will depend upon the particular type of synthetic plastic material used of which of course all well known thermoplastic textile threads can be employed to obtain a rapid reversal of the deformability imparted to the synthetic plastic warp threads 5 7 by the heaters 8 and 9 and by the heated reed 12 cooling devices 15 16 are located downstream of the beating up edge 4 between the same and.