US 12,215,443 B2
Yarn comprising a core and a sheath of fibers
Fatih Konukoǧlu, Inegol (TR); Erdogan Baris Özden, Inegol (TR); Şeref Aǧzikara, Inegol (TR); Ertuǧ Erkuş, Inegol (TR); Mustafa Zeyrek, Inegol (TR); Eşref Tuncer, Inegol (TR); Sedat Demirbüken, Inegol (TR); and Erkan Evran, Inegol (TR)
Assigned to SANKO TEKSTIL ISLETMELERI SAN. VE TIC. A.S., Inegol-Bursa (TR)
Filed by Sanko Tekstil Isletmeleri San. Ve Tic. A.S., Inegol (TR)
Filed on Jul. 29, 2019, as Appl. No. 16/524,635.
Claims priority of application No. 18186138 (EP), filed on Jul. 27, 2018.
Prior Publication US 2020/0056307 A1, Feb. 20, 2020
Int. Cl. D02G 3/36 (2006.01)
CPC D02G 3/36 (2013.01) 25 Claims
OG exemplary drawing
 
1. A composite yarn (1) having a core (2) and a sheath (3) comprising staple fibers, said core comprising at least one polymeric core fiber (21), wherein the amount of the polymeric core fibers (21) is at least 35% by weight of the total weight of the composite yarn (1) and said core (2) and said sheath (3) are spun together,
wherein the polymeric core fibers (21) are non-elastomeric and non-texturized fibers
having a linear density of 14 denier or less, wherein
the core fibers comprise at least 12 filaments
said core further comprising at least one elastomeric filament,
the non-elastomeric core fibers and the at least one elastomeric filament being connected together via a co-extrusion step in which they are forced through a restriction, where the non-elastomeric core fibers and the at least one elastomeric filament are pressed together and attach to each other to such a degree that they remain attached together also after exiting the restriction,
wherein at least part of the core fibers comprise a bundle of filaments comprising fully drawn yarns (FDY).