Process for stretching staple fibers and staple fibers produced thereby
AssigneeCommonwealth Scientific and Industrial Research Organisation
InventorsDavid G. Phillips, John J. Warner
Life of this patent
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Abstract
A process for stretching natural staple fibers to reduce the diameter includes the steps of treating a substantially untwisted traveling assembly of natural fibers to plasticize the natural fibers, twisting the traveling assembly sufficiently to substantially prevent drafting of the assembly during subsequent stretching, subsequently stretching the twisted assembly and setting the stretch. Staple fibers having reduced diameters are provided as a result of the stretching process.
Claims13
A process for stretching natural staple fibers to reduce their diameter comprising treating a substantially untwisted travelling assembly of natural fibers to plasticize the natural fibers, twisting the treated travelling assembly to apply sufficient false twist to the assembly to substantially prevent drafting of the assembly during subsequent stretching, subsequently stretching the twisted assembly and setting the stretch;
- wherein the false twist is present in the assembly during stretching and subsequent setting.
Staple fibers having reduced diameters as a result of a stretching process wherein the process comprises treating a substantially untwisted traveling assembly of natural fibers to plasticize the natural fibers, twisting the treated traveling assembly to apply sufficient false twist to the assembly to substantially prevent drafting of the assembly during subsequent stretching, subsequently stretching the twisted assembly and setting the stretch;
- wherein the false twist is present in the assembly during stretching and subsequent setting.
Dependencies are inferred from the claim text.