Composite stretch yarn, process and fabric
AssigneeSanko Tekstil Isletmeleri San. Ve Tic. A.S.
InventorsSeref Agzikara, Mustafa Zeyrek, Hamit Yenici, Mahmut Ozdemir, Kenan Loyan, Esin Kalfa Kilickan
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Abstract
In a stretch yarn (1) comprising a stretchable core (2) covered by an inelastic fibers sheath (3) the stretchable core (2) comprises first and second fibers (4, 5) that have elastic properties, the first fiber (4) is an elastomer and the second fiber (5) is a polyester based (co)polymer, the amount of the second fiber being in the range of 60-90% (w/w) of the total weight of the fibers of the stretchable core (2); the first and second fibers are connected together at least at a plurality of points (P).
Claims24
A single yarn comprising:
- a stretchable core;
- and
- an inelastic fiber sheath covering said core,
- wherein the stretchable core comprises first and second fibers each having elastic properties, said first fiber is an elastomer and said second fiber is selected from a polyester based (co)polymer and an elastomultiester,
- wherein the first and second fibers are twisted together and have at least 300 twists per meter and said first fiber has an elasticity and can be stretched of at least 400% and said second fiber has an elasticity less than said first fiber, said second fiber can be stretched of at least 20%, and
- wherein said first fiber is stretched before being bound together with said second fiber by co-extrusion.
A stretch core (2) yarn, comprising first and second fibers (4, 5) that have elastic properties, said first fiber (4) is an elastomer and said second fiber (5) is a polyester based (co)polymer, said second fiber being in the range of 60-90% (w/w) of the stretchable core (2), and wherein said first and second fiber are connected together at least at a plurality of points,
- wherein said first fiber is stretched before being bound together with said second fiber by co-extrusion.
Dependencies are inferred from the claim text.