What is the difference between S and Z twist: There is a little and a lot of difference. Yarns based on Poly(trimethylene trerephthalete)”, Chemical Fibres International, 47, 72-74, 1997. The drawing in my stretch yarn pageshows a running yarn in a false twisting machine. Has nothing to do with the production process, but now widely circulated, will it as a symbol of spin-draw … Physical properties of drawn yarns and textured yarns were reduced w ith increasing of OPP fraction. If the twisting device is rotating at Ns rpm in the direction shown, then when viewed from A, along the length AX, it will appear to be turning clockwise. DTY yarn is mainly used as a part of weaving and knitting of fabrics for making garments, home decorations, seat â¦ 6. It was built in 1969 as a result of vision of its founder Sh. Yarns should be textured with minimum overfeed to also minimize plucking. Vijay Kumar Yadav. What's the difference between DTY and FDY ? Therefore, if a yarn end is held outside the tube and cut, it would go inside the tube on passing compressed air. The yarn is also constantly being twisted at the location X by some device, as its length moves through the distance AB. Abhay Trading Company has emerged as one of Leading Yarn Suppliers for manufacturers and dealers in Hosiery Industries. as the fibres will try to recover from the strain of being twisted. FDY yarn is available at Kayavlon in 3 lustre - Semi-dull (SD), Bright (BR) and Trilobal Bright (TBR). The twist on the left hand side remains. The Filament? There is also pronounced effect of draw ratio and D/Y ratio shown on the textured yarn structure and properties. Polyester Draw Textured Yarn (DTY) is a continuous filament yarn textured by heat setting in a twisted condition to . With an axial jet, the compressed air is accelerated to the outlet while dragging the filaments along. All types of continuous filament yarns (PES, PA, PP, Glass, etc.) The DTYs are considered to be highly stretchable yarns, because in addition to the recoverable part of the intrinsic extension from their melt spun structure, there is the added extension attributable to the Twist? DTY yarn is mainly used as a part of weaving and knitting of fabrics for making garments, home decorations, seat covers, bags and numerous different things. The two most popular textured yarn structures are draw-twist texturing and air-jet texturing. 9 Processes for Parallel and Core Effect ATY. The new substitute product holds the potential for competitive advantage, lower manufacturing costs and streamlined manufacturing capabilities. Two fully drawn multifilament polyester yarns of 70 denier (7.77 tex)l36 filaments and 70 denier (7.77 te x)172 filaments were used as parent material for producing two different textured yarns. From here the yarn is fed to Shaft 2. Texturing Principle. Figure 3 shows that loop density of steam-jet textured yarns increases and air-jet textured yarn decreases when effect-yarn draw ratio is increased. 'Textured Yarn' definition with manufacturers. Also known as dacron low spring silk, is the continuous or simultaneous stretching and deformation of finished products on a machine. usually intended to be cut or stretch-broken for use in staple fibre or top form.">Tow?.">Crimp? The stuffer-box method is a fast and inexpensive method for carpeting yarn. Smaller loops are more stable and give a better bulkiness than larger loops. |. draw texturing is the most widely used method for converting flat thermoplastic CF yarns to ones of more bulky structures, air-jet texturing has become increasingly important because of it capability to process CF yarns of any polymer type, not just thermoplastics, and also glass filaments. An example of the set-DTY process is illustrated by Fig.7. textured PET filament yarns (PET DTY yarn) with five different filament fineness (3.05 dtex, 1.15 dtex, 0.76 dtex, 0.57 dtex and 0.33 dtex) were used as cores to manufacture cotton covered filament yarns on a modified ring Table I. ester (DTY) Drawn Textured Yarn (DTY)Polyester DTY is obtained when Polyester POY is simultaneously twisted and drawn. Air textured yarn is very bulky with permanent crimps and loops. Textured Filament? Finishing Fabrics Containing Air Jet Textured Yarns Relaxation … March 1999 ; Indian Journal of Fibre and Textile Research 24(1):16-20; Authors: V. K. Kothari. The yarns were parallel end textured on Eltex A T/HS air-jet texturing machine using the HemaJet with TIOO core under the following texturing conditions: Overfeed to jet Air … As Fig.32 shows, on leaving the air-jet, the textured yarn can be heat treated to increase the stability and shrink the loops into a smaller size,. The specific difference between high elastic yarn and low elastic yarn is: compared with low elastic yarn, the swelling and bending state of the high elastic yarn is larger, more bending. One or more ends of filament yarn are overfed at a constant rate to a special air jet, which blows, depending on the amount of overfeed between the inlet and outlet feeds, the yarns into a continuous string of smaller and larger loops. Keywords- False twist texturing, Draw â¦ Since the advent of synthetic filament yarns, the preceding difficulties have been faced by textile industry and naturally several solutions have also been applied to overcome. What is Fully Oriented Yarn (FOY)? Polyester yarns are normally within the count range of 55.6 to 333tex (50 to 300 den), with the emphasis on 83.3 tex to 166.7 tex (75 to 150 den). Eltex AT/HS air-jet texturing machine and HemaJet with Tl 00core were used to produce air textured yarns with the texturing parameters of33.3% Drawn Textured Yarn (DTY) yarn is obtained when Polyester POY is simultaneously twisted and drawn. Textiles Terms & Definitions, Compiled by The Textile Institute Textile Terms and Definitions Committee, Ed. textured yarns- nylon 66 air Textured yarns, draw Textured yarns, nylon yarns for hook & loop fastener, dupont Yarn, tactel yarns, polyester yarns, synthetic yarns, circular knitting yarns, warp knitting yarns, weaving Yarn for sportswear, lingeries, hosiery, Yarn dyeings, sewing thread, zipper sewing threads, label Yarn, bonded Yarn … DTY yarn is mainly used as a part of weaving and knitting of fabrics for making garments, home decorations, seat covers, bags and numerous different things. High elastic elongation is high elastic yarns. usually intended to be cut or stretch-broken for use in staple fibre or top form.">Tow?.">Crimp? In zone XB, the S-Twist? Air-jet texturing is one of the most versatile methods known to convert flat syntheticfilament yarns to textured yarns. Investigation of the influence of effect-yarn draw and effect-yarn overfeed on texturing performance: comparison between air-jet and steam-jet textured yarn Ganemulle Lekamalage Dharmasri Wickramasinghe1* and Peter William Foster2 *Correspondence:email@example.com 1Department of Textile and Clothing … Fig.3. For more in-depth study of the principles of false-Twist? yarns find applications in a wide range of technical end uses. Of the above methods briefly described, the more widely used are false-Twist? lengths to be textured are fed without tension into the jet ; this is achieved by ensuring that the speed at which they are fed into the jet is faster than the speed at which they leave the jet, the compressed air entering the jet can then act on the loose Filament? A ratio > 1, of input to output speed is termed the overfeed. air-jet textured. The yarn is simultaneously twisted and drawn. extension, but retain a high bulk, an additional heating stage is incorporated after the roller-pair B. Fig. device. is called Z-Twist?. lengths. winding tension produce yarn with higher phys. Note that in the case of core effect type yarns, the two yarn paths must have their own drawing zone and therefore heating element. What are the benefits of textured yarns? texturing requires the filaments to be initially heated above their Tg, the process is only suitable for thermoplastic polymeric filaments. finishes and a yarn of 68trilobal filaments (2.44 dtex per filament) were textured. Since false-Twist? The usual setting temperatures are 230 - 240 °C for finer polyester yarns. Air jet Texturising: 3/26/2014DRAWING & TEXTURISING29 In this method of texturing, yarns led through the turbulent region of a air jet at a rate faster than if is drawn off on the far side of the jet, in the jet, the yarn structure is opened , loops are locked inside and others are locked on the surface of the yarn. texturing FDY/FOY yarns were texturised using a rotating pin as the false-Twist? One or more ends of filament yarn are overfed at a constant rate to a special air jet, which blows, depending on the amount of overfeed between the inlet and outlet feeds, the yarns into a continuous string of smaller and larger loops. The difference is that one yarn has been twisted into the opposite direction of the other yarn. The difference between colored spinning and dyed yarn Is the dyed yarn colored spinning? The DP5-T DIGICONE® fastflex™ air texturing machine is designed for the flexible production of high quality air jet textured yarns. Draw Textured Yarn … The Texspun device is located in the heat stabilizing zone, so that as the yarn passes through the device the loops are torn and free fibre ends, very similar to staple fibre, are produced. The first type is called parallel yarns and the second type core effect yarns, and Fig.9 illustrates the production of both. Therefore a variety of air-texturing jets are available to cover the different ranges of dpf. usually intended to be cut or stretch-broken for use in staple fibre or top form.">Tow?.">Crimp? There is no universal nozzle capable of processing any supply yarn … and the term false Twist?, and how the latter is produced. Single, or one-ply, yarns are single strands composed of fibres held together by at least a small amount of twist; or of filaments grouped together either with or without twist; or of narrow … DTY yarn can be in Semi Dull or Bright or Triloble … In a very short time, the Z-Twist? If the yarn were to be heated above the Tg  of the polymer while it is being Z-twisted in zone AX, Fig.5, and then cooled before being untwisted in zone XB, the spiral shape of the individual filaments comprising the CF yarn would be retained, but the filaments would become free of the Twist? With the clockwise spiral, the inclination of the helix mirrors the inclination in the letter Z, and the Twist? POY is mainly used in texturizing to make textured yarn and can also be used in draw warping for weaving and warp knitting of fabrics. It suggests that the increase of effect-yarn draw ratio increases the level of … This is because each length of yarn moving from zone AX into zone XB will become untwisted by the counter clockwise torque present in zone XB. Instability of air-jet textured yarns also first decreases and then increases with the increasing shrinkage difference. inside the jet. ATY Air Textured Yarn, similar to cotton in appearance. Nylon yarns are in the range from 16.7 to 122.2 tex (15-110 den); Polypropylene yarns are typically 7.7 to 100tex (70 – 900den) [ 73]. A spherical barrier is positioned close to the outlet orifice, so that as the compressed air exits it becomes a turbulent air flow. 9. Polyester Drawn Textured Yarn (Polyester DTY) Drawn Textured Yarn (DTY) yarn is obtained when Polyester POY is simultaneously twisted and drawn. will remain in the yarn, since the Z-Twist? Draw textured yarn (DTY) is made from Partially Oriented Yarn(POY). POY is mainly used in texturizing to make textured yarn and can also be used in draw warping for weaving and warp knitting of fabrics. A further addition to the process line can be made, used to convert the small loops into hairs, thereby simulating the structure of staple spun yarns which have short protrusions of fibre ends from the yarn’s surface. The twisting is done with a friction device, such as a set of rotating … However, where it is required that DTYs have relatively low Twist? FRICTION TEXTURED YARN We can produce between 70 denier and 450 denier with a variety flaments dull ,semi dull and dope dyed with differents colours and quantity . As Fig 6 illustrates, the pin twister is a hollow spindle with a central pin positioned across the tubular interior. Brown, N.S; and Chuah,H.H, “Texturing of Textile Filament? It doesn't matter what size or width your ruler is as this metric measures the thickness of the yarn rather than the length. However, air-textured yarn (ATY) has millions of small loops that offer a distinct look and feel. Spinning speeds between 3000 m/min to 4000m/min provides a partially oriented yarn which later requires draw of two during the draw texturizing. Currently, the practice is to use between 1.1 and 2.2 detex (1 and 2 denier) per Filament? texturing the reader is referred to , Fig.4 Illustration of the False Twisting Action, Fig.5 Illustration of False-Twist? If you would count the twist in both … Bicomponent Process: with this method the texture is obtained by twisting to together filaments of high and low potential shrinkage. Get info of suppliers, manufacturers, exporters, traders of Textured Yarn for buying in India. Types of yarn Classification based on number of strands Yarns can be described as single, or one-ply; ply, plied, or folded; or as cord, including cable and hawser types. FDY: Fully drawn yarn. Page 2 of 17 give greater bulk, higher stretch and more pleasing aesthetics. Air consumption is one significant cost factor in the process which must be kept as low as possible. Draw Texturised Yarn (DTY) is a fully drawn, fully oriented polyester multifilament yarn with soft crimp, high bulk and texture with cotton feel and very high durability and This is manufactured by texturising partially oriented yarn using texturising machines. extension of the DTY, and the yarn is said to be stabilised or a set-DTY. We will show you the difference between a parallel and a During the earlier years of false-Twist?  A fibre being a textile raw material, generally characterised by flexibility, fineness and a high ratio of length to thickness(diameter):- aspect ratio. What is the difference between S and Z twist: There is a little and a lot of difference. compaction resulting a false-Twist? The decrease of loop density in the case of air-jet textured yarns may be due to smaller loops. The elasticity can be obviously felt when pulling the two ends of the high elastic yarn. Generally, vortex type jets are used for products which require less than 100% overfeed, whereas the venturi type of jet can be used with overfeeds of up to several hundred per cent. After spinning and drawing, a slight intermingling is given to the flat yarn to facilitate the easy post spinning processes. The three-dimensional crimp is permanently set by the heat. The heated yarn is passed between a pair of geared wheels or some similar device (gear crimping). 2. Another type of friction twisting device used is based on driven cross-belts. The air covering process consists of covering an elastomeric yarn with other continuous textured yarns.This process takes place through an air flow controlled by a special jet which opens the fibre of the covering yarn and closes it E â¦ Nylon Drawn Textured Yarn 6 & 66 (Nylon DTY) Kayavlon Impex Pvt Ltd. is one of the foremost and leading Indenter, based at Surat, Gujarat, India. 1. General polyester high elastic yarn or low elastic yarn are not available. Professional manufacturer of dope dyed polyester filament yarn in china,produce polyester yarn,polyester DTY yarn,polyester fdy yarn,with high-quality and competitive price. DTY yarn can be in Semi Dull or Bright or Triloble Bright … in the clockwise direction, the yarn length present within the zone AX, inserting Z-Twist?. The speed of shaft 2 is always higher by the factor of the necessary draw ratio for the particular yarn and process. The one device will therefore at any instant in time effectively Twist? The individual filaments are compacted by the air … Subjecting the resulting yarn to washing or steaming results in the differential shrinkage of the filaments to form the ulked profile. Find here online price details of companies selling Textured Yarn. Figure 3: Application of Intermingling While Spinning. 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