Polymer Fibre

An artificial hair product comprising a fibre, the fibre comprising a self-supporting hollow polymeric sheath and, within the hollow sheath, a colour component comprising a liquid crystal providing a desired aesthetic effect wherein the self-supporting sheath imparts dimensional stability to the fibre, the fibre having a diameter of 15 to 150 microns.

A fabric comprising a multitude of interlinked fibres, each fibre of the interlinked fibres comprising a self-supporting hollow polymeric sheath and, within the hollow sheath, a colour component comprising a liquid crystal providing a desired aesthetic effect wherein the self-supporting sheath imparts dimensional stability to the fibre.

A garment or fabric product comprising a fabric, the fabric comprising a multitude of interlinked fibres, each fibre of the interlinked fibres comprising a self-supporting hollow polymeric sheath and, within the hollow sheath, a colour component comprising a liquid crystal providing a desired aesthetic effect wherein the self-supporting sheath imparts dimensional stability to the fibre.

A process for the production of a fibre, the fibre comprising a self-supporting hollow polymeric sheath and, within the hollow sheath, a colour component comprising a liquid crystal providing a desired aesthetic effect wherein the self-supporting sheath imparts dimensional stability to the fibre the process comprising feeding a polymer melt into an extrusion channel so as to produce an extruded hollow polymeric tube, feeding a flowable colour component comprising a liquid crystal into a zone within the hollow tube so as to fill the polymeric hollow tube whereby the polymer is extruded to form the sheath around the liquid crystal component thereby to form the fibre.