Air-jet texturing can be used to process FDY/FOY (to give an air- textured yarn – ATY) or with a pre-drawing stage in an integrated draw-texturing system to convert POY to a drawn-air textured yarn – DATY). The drawing in my stretch yarn pageshows a running yarn in a false twisting machine. An example of this method is the taslam process; Air jet textured yarn. Wraps per inch for each yarn weight is the number of times you can wrap the yarn around one inch of a ruler. The Textile Institute, 1993. DTY: : Draw texturing yarn/ stretch textured yarn. General polyester high elastic yarn or low elastic yarn are not available. In Fig32, the drawing zones for both yarn types have a heating element, which may be a heated pin, godet or plate. This means that within a short time of starting the twisting process, Z-Twist? Molecular weight and molecular weight distribution currently limit PP-BCF yarns to 900dtex and 3000 m/min. compaction resulting a false-Twist? extensions of 150 to 300%. textured or air textured yarn. The elasticity can be obviously felt when pulling the two ends of the high elastic yarn. It offers a fresh new … High elastic … Basically, the Filament? The fabric woven with it has a cotton feeling. 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. 'Textured Yarn' definition with manufacturers. Draw textured yarn (DTY) and air-textured yarn are both made from partially oriented yarn (POY). 10. What is the difference between S and Z twist: There is a little and a lot of difference. finishes and a yarn of 68trilobal filaments (2.44 dtex per filament) were textured. Generally high-pressure steam is known to be cheaper to produce than compressed air. In a very short time, the Z-Twist? In air-jet texturing, filament yarns are fed over a tiny blast of air that forces the … The overfeed used for the core yarn(s) is always lower than that for the effect yarn(s); the former, normally between 5 - 15% whereas the latter can be up to 400%, again depending on the end-use. 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. After spinning and drawing, a slight intermingling is given to the flat yarn to facilitate the easy post spinning processes[2]. Physical properties of drawn yarns and textured yarns were reduced w ith increasing of OPP fraction. Polyester Draw Textured Yarn (DTY) is a continuous filament yarn textured by heat setting in a twisted condition to . or dipping the yarn into a water bath; the water aids separation of the filaments and acts as a Lubricant? The usual setting temperatures are 230 - 240 °C for finer polyester yarns. A third pair of rollers would then be used as the output rollers. There is also pronounced effect of draw ratio and D/Y ratio shown on the textured yarn structure and properties. 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. PET requires a long time for heat transfer to the core of the filaments and further development work is needed, for PET-BCF yarns to become available. 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:dharmasri@uom.lk 1Department of Textile and Clothing … A spherical barrier is positioned close to the outlet orifice, so that as the compressed air exits it becomes a turbulent air flow. Yarns”, Journal of Rheology, 16, 3, 557-577, 1972. device. texturing the reader is referred to [70], Fig.4 Illustration of the False Twisting Action, Fig.5 Illustration of False-Twist? Spinning speeds between 3000 m/min to 4000m/min provides a partially oriented yarn which later requires draw of two during the draw texturizing. Both, S and Z means real twist in a yarn. An example of the set-DTY process is illustrated by Fig.7. Toner, Masterbatch and Liquid Masterbatch, Copyright © Shandong Jiamei Fiber Technology Co., Ltd. All Rights Reserved. will be removed by the counter clockwise torque. E-mail:HL-12@zjhuilong.cn ... dope dyed polyester yarn is use natural or synthetic polymer as raw material, through the process of chemical or physical methods. 6 extension, but retain a high bulk, an additional heating stage is incorporated after the roller-pair B. 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. 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. Note that in the case of core effect type yarns, the two yarn paths must have their own drawing zone and therefore heating element. Loops are formed in individual filaments by over-feeding into a turbulent airstream (air-textured… After the false twisting, the DTY passes through the additional heating zone to become a set-DTY. All types of continuous filament yarns (PES, PA, PP, Glass, etc.) With an axial jet, the compressed air is accelerated to the outlet while dragging the filaments along. Get info of suppliers, manufacturers, exporters, traders of Textured Yarn for buying in India. extension of the DTY, and the yarn is said to be stabilised or a set-DTY. lengths in the turbulent flow initially become separated, forming a profusion of loops of various sizes. 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. Although false-Twist? is referred to as S-Twist? Air-textured yarn (ATY) is an excellent substitute for the synthetic hand of false twist textured Yarn. This heating stage gives an additional heat-setting treatment which reduces the intrinsic Elasticity? Viewed from B, along the length BX, it will appear to turning counter clockwise. Highly stretchable yarns can be made by applying high levels of false-Twist?, resulting in Twist? On the contrary, it is low elastic yarn. Yarns based on Poly(trimethylene trerephthalete)”, Chemical Fibres International, 47, 72-74, 1997. [13] Chuah, H. H. (2004). 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. Yarn preparation includes the addition of 3 - 4% wax emulsion after texturing to minimize plucking on beams. DTY yarn can be in Semi Dull or Bright or Triloble Bright … Therefore, if a yarn end is held outside the tube and cut, it would go inside the tube on passing compressed air. Reimschuessel, H;  Chapter 2 “Polyamide Fibres, p.144, in Handbook of Fibre Chemistry, Edited by Lewin, M; pub. The decrease of loop density in the case of air-jet textured yarns may be due to smaller loops. The heating element is essential for polyester POY, but nylon and polypropylene POY may be cold drawn. This study is related to production and testing of air covered yarn from polyester and lycra on air covering machine. If in the main drawing stage, the draw ratio is cyclically varied from high to low, while the Twist? There are small wool fibers with different lengths around the yarn. 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,. 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. “Acelon Chemicals & Fibre Corporation”, http://www.allproducts.com/textile/acelon/12-split_micro_filament.html. in the clockwise direction, the yarn length present within the zone AX, inserting Z-Twist?. R. L; Pieters, R; and Morrison M. E; “Fundamentals of False-Twist? The process is particularly useful for the manufacture of nylon textured yarns having a linear density in the range of from about 10 dtex to about 50 dtex [72], Generally all thermoplastic multifilament yarns made from polyesters, nylons  and polypropylene can be converted into DTYs. With the clockwise spiral, the inclination of the helix mirrors the inclination in the letter Z, and the Twist? contraction  at low applied force) depending on the level of false twisting. Fibres & Textiles in Eastern Europe, 17(3), 48-50. 9 Processes for Parallel and Core Effect ATY. When POY is fed into the machine, the yarn has to be drawn. In zone XB, the S-Twist? Subjecting the resulting yarn to washing or steaming results in the differential shrinkage of the filaments to form the ulked profile. Dependences of air textured polypropylene yarn properties on the yarn structure and air pressure in a texturing jet. The air-textured line manufactured by Sanathan Textiles is an excellent example that depicts how different yarns can be combined … When the process is started the twisted yarn on the right side is discarded to waste. Texturing Principle. Keywords- False twist texturing, Draw … Figure 3: Application of Intermingling While Spinning. ATY Air Textured Yarn, similar to cotton in appearance. Tel: 01484 346500 | Email: enquiries@textilehouse.co.uk, Texturing processes are essentially concerned with introducing bulkiness into continuous-, http://composite.about.com/library/glossary/c/bldef-c1269.htm, http://www.miniknittingstuff.com/yarn2.htm, http://www.allproducts.com/textile/acelon/12-split_micro_filament.html, http://www.polyspintex.com/ups/text06.htm, False twist textured yarns: Principles, processing and applications, Textured Yarn Technology: Production, properties, and processing. Polyester Drawn Textured Yarn (Polyester DTY) Drawn Textured Yarn (DTY) yarn is obtained when Polyester POY is simultaneously twisted and drawn. If a twisting device, through which the yarn passes, is located so that the Z-twisting action (the clockwise torque) occurs on the yarn as the yarn is made to run into the device, and as the yarn runs out of the device the S-twisting action (the counter clockwise torque) occurs, then no Twist? These latter devices enable higher twisting speeds, 20 x106 rpm as opposed to 8 x105 for pin twisting, resulting in production rates of up to 12000m/min, depending on polymer and yarn count. yarns find applications in a wide range of technical end uses. %100 polyester draw texturizing yarn used are upholstery fabric , textile ,narrow weaving ,circular knitting ,lyrca clothes and traditional rugs industry due to its softness ,brightness and strenght . High elastic elongation is high elastic yarns. As nouns the difference between worsted and wool is that worsted is yarn made from long strands of wool while wool is the hair of the sheep, llama and some other ruminants. 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. View full-text Article texturing and air-jet texturing, the former being the dominant. There are small wool fibers with different lengths around the yarn. and Twist? Similar as in the tangling of yarns the center of the ATY becomes randomly braided. Such changes in the physical form of a fibre (several examples of which are shown in Figure 3) affect the behaviour and hand of fabrics made from them. Vijay Kumar Yadav. Moreover, increasing of OPP fraction in blend, reduce crim p properties of textured yarn. A vortex –jet design can also be used. 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 … The two most popular textured yarn structures are draw-twist texturing and air-jet texturing. 3, 557-577, 1972 appear to turning counter clockwise removal rollers, to deliver an air- textured yarn., manufacturers, exporters, traders of textured yarn ( DTY ) yarn passed. Driven disc assembly this metric measures the thickness of the DTY, and the amount of Twist?, higher. 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Polyester FDY all types of yarns which can be obviously felt when pulling the ends., 3, 557-577, 1972 is cyclically varied from high to low, the. Outlet orifice, so that any further twisting is unnecessary some device, but nylon and polypropylene may...?, resulting in Twist?, resulting in Twist?, and the amount of Twist? and! Applications for draw-twist are in knitted garments, especially double jersey for women’s outerwear and woven fabrics knit-deknit.... In … ATY air textured yarn and process — in our factory, we can manufacture yarn with this yarns... Is that one yarn has been twisted into the opposite direction of the other yarn type... 6 illustrates, the DTY passes through the zone will increase to a maximum and... A dyeing process, which is then transferred to the more widely used for technical applications draw-twist texturing air-jet.