Abstract: A jet assembly for spinning cellulose fibres from a solution of cellulose in an amine oxide solvent in which the jet assembly includes a generally top-hat shaped spinnerette having a series of downwardly directed holes through the base of the spinnerette and an outwardly directed flange around the periphery of the vertical walls of the spinnerette, the jet assembly including a heated housing engaging with the flange and being bolted to the flange, insulation being provided on the underside of the jet assembly over the outer periphery, the combination of heating and insulation regulating the temperature of the jet assembly for optimum spinning of an amine oxide cellulose solution.

Abstract: A method and apparatus for cleaning and unblocking dope from jet holes (14) of a spinnerette plate (13) used in the manufacture of solvent-spun cellulose fibre. The method comprises the steps of soaking the spinnerette plates (12) in a solvent for the dope, flushing the solvent in a first direction through the jet holes (14) flushing the solvent in the reverse direction through the jet holes 14. The solvent is washed off in a water ultrasonic bath. The spinnerette plates are then steam cleaned and then ultrasonically cleaned in a cleaning agent which will dislodge remnants of cellulose from the spinnerette plates 13.