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US 4,420,927 AGranted
Process for the manufacture of a fancy yarn
OwnerPierre Payeninventor
Life of this patent
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Abstract
The invention concerns an improved process for the manufacture of a fancy yarn, in particular of the crepe effect and of the kind where a multifilamentary yarn is overtwisted, then subjected to a false-twist texturing treatment carried out in the same twisting direction as the overtwist, which is characterized in that the basic multifilamentary yarn is a partly stretched synthetic yarn, and the complementary stretching is carried out simultaneously with the false-twist texturing.
Claims3
A process for manufacturing fancy yarns having a crepe effect, comprising:
- (a) first overtwisting a multifilamentary partially oriented synthetic yarn, and
- (b) then simultaneously false twist texturing and complementary stretching the overtwisted multifilamentary partially oriented synthetic yarn, said false twist texturing being carried out in the same twist direction as said overtwisting.
Dependencies are inferred from the claim text.