the i d should be from 3 to 15 preferably 5 to 10 times the diameter of the yarn bundle and associated liquid for example the diameter of a 1000 filament 1500 denier yarn with liquid is about 1 mm the face of the deflection means located at the entrance of the spin tube or midway should preferably be relatively shallow e g 0 15 to 0 3 mm thick whereas deflection means at the bottom of the tube where the yarn is less sensitive can be much thicker e g 1 5 mm the present invention is useful at spinning speeds of 300 to 800 meters min or higher preferably 500 to 700 meters min fiber properties are measured at 24 u00b0 c and 55 relative humidity on yarns that have been conditioned under the test conditions for a minimum of 14 hours the nominal 1500 denier yarns of the examples are given about 0 8 turns twist cm i e 1 1 twist multiplier and broken with a 25 4 cm gauge length at 50 strain minute deniers are obtained by weighing a known length of yarn and corrected to a finish free basis containing 4 5 moisture using an arrangement similar to that of fig1 a spinning solution containing 18 8 by weight poly.