Improvements in and relating to the production of fancy yarns

摘要: 828,641. Spinning and finishing yarns. COURTAULDS Ltd. May 6, 1958 [May 7, 1957], No. 14457/57. Class 120(3) A "mock-boucle yarn" is produced by feeding at least two bundles of continuous filaments (which may be twisted one turn per inch) into a zone turbulent gaseous fluid, the being "overfed" linear rate 75% greater than another bundle, withdrawing all from as single assembly less feed any bundle to zone, twisting assembly. The become looped convoluted overfed bundle(s) is/are contracted around entangled with other bundle(s). Yarn having neps regular or irregular intervals obtained varying relative degree overfeed. polyamide, polyester, polyacrylonitrile, cellulose acetate triacetate, regenerated cellulose: fed slower denier along their length and/or shrinkable so that heat treatment yarn will enhance bulking effect. e.g. temporary "scaffolding" thread, incorporated in emerging intertwisted therewith. As shown Fig. 1 (Prov.), 5 pass through tension devices 3, godets 4, 8, rotating independently and, optionally, different speeds on common shaft, 2 (not. shown) are combined before entering jet 9 which they emerge 15 wound godet 10, where it joined 12, cap ring spinning device 11. leaving 4 8 over guides oscillate vary rates. comprises body portion 40 providing exit passage 45 leading conical 46 compressed air inlet 43: houses conically tipped member 47 passages 52, 53, 54: portions adjustably secured flanges 41 48. Specification 732,929 referred to.