Yarn spinning from fibre sub-assemblies with variation of their paths of travel, relative positions or twist levels

A method of spinning a yarn comprising the steps of dividing a travelling fibre assembly into a plurality of fibre sub-assemblies, causing the sub-assemblies to traverse different paths and then recombining them by twisting them together at a point of recombination, wherein said paths are sufficiently proximate for fibres to continuously transfer from one or more of said sub-assemblies and be drawn onto or into another or other sub-assemblies prior to said point of recombination so that in the yarn said transferring fibres are incorporated for part of their length onto or into said one or more of said fibre sub-assemblies and for a further part of their length onto or into said another or said other sub-assemblies.

A method for forming a yarn comprising twisting a plurality of fibre sub-assemblies together at a convergence point to form a fibre assembly being said yarn, and further including cyclically altering one or more of the relative twist propagation and the relative tension in the sub-assemblies upstream of the convergence point.

Apparatus for forming a yarn comprising means for twisting a plurality of fibre sub-assemblies together at a convergence point to form a fibre assembly being said yarn, and further including means for cyclically altering one or more of the relative twist propagation and the relative tension in the sub-assemblies upstream of the convergence point.

A method of spinning a yarn comprising combining a plurality of fibre sub-assemblies at a convergence point to form a fibre assembly comprising said yarn by twisting the sub-assemblies together, and engaging one or more of said sub-assemblies upstream of the convergence point to cause them to traverse varying paths prior to said combining step, each of said sub-assemblies containing a plurality of fibres, and dividing an initial travelling fibre assembly into said plurality of fibre sub-assemblies before the combining step.

A method of spinning a yarn comprising combining a plurality of fibre sub-assemblies at a convergence point to form a fibre assembly comprising said yarn by twisting the sub-assemblies together, and engaging one or more of said sub-assemblies upstream of the convergence point to cause them to traverse varying paths prior to said combining step, each of said sub-assemblies containing a plurality of fibres, wherein the fibre sub-assemblies traverse paths of different lengths between said engaging step and combining step.

A method of spinning a yarn comprising the steps of combining a plurality of fibre sub-assemblies at a convergence point to form a fibre assembly comprising said yarn by twisting the sub-assemblies together, and engaging one or more of said sub-assemblies upstream of the convergence point to cause them to traverse varying paths prior to said combining step, each of said sub-assemblies containing a plurality of fibres, and wherein the path lengths traversed by the sub-assemblies are varied.