Method for determining level of bulk and control thereof

G - Physics – 01 – N

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354/21

G01N 33/36 (2006.01) D01D 11/00 (2006.01) D02G 1/00 (2006.01)

Patent

CA 2029478

TITLE Method for Determining Level of Bulk and Control Thereof ABSTRACT An apparatus that includes speed, temperature, tension, position and pressure sensors on a BCF yarn spinning machine in connection with a digital computer incorporates models in the computer which predict yarn bulk and dyeability properties at a function of sensor inputs: hot roll temperature, bulking set temperatures, ladder guide tension, relative viscosity, draw zone tension, Hall-effect Watt-meter measuring the power consumption of the spinning pump, finish roll speed, takeup roll speed, wind up speed and wind up tension. C.55

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