narrow to a wide shape the parallelogram pattern is also defined by a constant diagonal length the constant diagonal length is the distance between adjacent holes on the same parallelogram such as for example the distance ab this distance is the same for adjacent holes in the same parallelogram as it is for all parallelograms throughout the spinneret 16 the location of the holes 27 is further defined in that they are in circular rows each sequential row from the central hub 34 of the spinneret 16 outward to the outer rim 38 is positioned closer to the subsequent row than to the preceding row a comparison of the distance between the innermost two rows a u2014 a b u2014 b and the distance between the outermost two rows y u2014 y z u2014 z illustrates that the distance between rows decrease radially outwards from the center of the spinneret 16 moreover holes from alternating rows are radially aligned from the center of the spinneret 16 as shown by radial line 53 of fig4 the positioning of the holes 27 results in a spinneret 16 having a hole density the number of holes per cm 2 which increases from the central hub 34 to the outer rim 38 of the spinneret 16 consequently quench air is minimally impeded by the curtain of filaments in the inner rows of the spinneret 16 so that all filament rows are uniformly quenched and spun orientation is substantially uniform the benefit of a spinneret having a constant diagonal hole 27 arrangement is equally applicable to mono polymer filament production the bosses 37 preferably are cylindrical and equidistantly spaced from each other specifically the bosses 37.