Courtaulds Fibres (holdings) Ltd.

Acordis Fibres (holdings) Limited

Alan R Owens

Michael C Quigley

Alan Sellars

Patrick Arthur White

Malcolm John Hayhurst

Ralph Draper

Jacqueline Faye MacDonald

Ronald Derek Payne

Richard James Davies

Ian David Roughsedge

Michael R Perry

Jacqueline Fave MacDonald

A method of producing lyocell fibers by spinning a solution of cellulose in an organic solvent through an air gap and into a spin bath in which there is provided a cross-draught of air in the air gap.

Process of making cellulose filaments

A method of producing lyocell fibres by spinning a solution of cellulose in an organic solvent through an air gap and into a spin bath in which there is provided a cross-draught of air in the air gap.

A spinning cell for producing lyocell fibre by spinning a solution of cellulose in an organic solvent through an air gap into a spin bath has nozzles to create a cross-draught through the air gap.

Spinning cell

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.

Jet assembly

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.

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Nuneaton, United Kingdom

Alan R Owens