device. DTY yarn is mainly used as a part of weaving and knitting of fabrics for making garments, home decorations, seat … lengths. Usually jets operate at pressures of about 10 bar (140 psi) and the actual texturing occurs directly at the exit of the jet in what is a turbulent supersonic air stream. (BCF) Technology. By including a mechanical drawing stage(i.e. Fig.6  Illustrations of False-Twisting Devices. and Twist? In zone XB, the S-Twist? Since false-Twist? Keywords- False twist texturing, Draw … 3. These entangle as the filaments get pulled together by removal rollers, to deliver an air- textured CF yarn. %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 . inside the jet. Finishing Fabrics Containing Air Jet Textured Yarns Relaxation … The yarn is also constantly being twisted at the location X by some device, as its length moves through the distance AB. Yarn preparation includes the addition of 3 - 4% wax emulsion after texturing to minimize plucking on beams. Instability of air-jet tex­ tured yarns also first decreases and then increases with the increasing shrinkage difference. A ratio > 1, of input to output speed is termed the overfeed. Mar 21, 2018. When Twist? will be removed by the counter clockwise torque. We have strong network in China, Taiwan, South Korea, Malaysia, Thailand, Indonesia, Mexico, Spain, Italy & various other countries for Nylon DTY.Nylon POY is used for manufacturing … Effect of process variables on bulk There are small wool fibers with different lengths around the yarn. 2. Find here online price details of companies selling Textured Yarn. 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. 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. Also known as dacron low spring silk, is the continuous or simultaneous stretching and deformation of by Marcel Dekker, 1998. After the false twisting, the DTY passes through the additional heating zone to become a set-DTY. In this device the compressed air has a spiralling turbulent flow to the outlet, the loose Filament? Polyester Draw Textured Yarn (DTY) is a continuous filament yarn textured by heat setting in a twisted condition to . The flat CF yarn passes down the tube and around the pin. 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. Similar as in the tangling of yarns the center of the ATY becomes randomly braided. {dpf}, the most popular yarns being more towards 1dpf or finer. What are the benefits of textured yarns? 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? The three-dimensional crimp is permanently set by the heat. 9. inserted; Twist? usually intended to be cut or stretch-broken for use in staple fibre or top form.">Tow?.">Crimp? in the yarn length present in AX will increase to a constant value equal to Vd / Ns turns per metre. will be seen in the yarn as it runs into the twisting device, but no 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. When the POY is drawn and Twisted at the same time, the end product obtained is a draw textured yarn. DTY Elastic Yarn can be divided into high elastic yarn and low elastic yarn. The major application for BCF yarns is tufted carpets, but the  technology has been developed to run at higher speeds and produce  finer counts which enables BCF yarns to enter the textile and apparel sectors such as furnishings and outerwear. It was built in 1969 as a result of vision of its founder Sh. Air textured yarn is very bulky with permanent crimps and loops. Maker Filaments - Manufacturer & exporter of Fancy Air Textured Yarn. Should the yarn break, the twisted yarn on the left hand side also goes to waste. It suggests that the increase of effect-yarn draw ratio increases the level of … 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 6 This page will explain how ATY is produced and where it is used. Fig. texturing gives CF yarns a more natural feel bulk and stretch, their uniform geometry lacks the natural appearance of staple-spun yarns. The difference between colored spinning and dyed yarn Is the dyed yarn colored spinning? 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. winding tension produce yarn with higher phys. 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. texturing process it is necessary to first consider the meaning of real Twist? Air-jet textured yarns produced at const. 9 Processes for Parallel and Core Effect ATY. What's the difference between DTY and FDY ? 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. The technical specifications of draw textured yarn have made it ideal for a wide range of applications as it can be moulded in several ways as well. 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 loops in ATY contribute to the bulk and loft of a fabric, whereas in DTY the even crimp in every filament creates the bulk and volume of a fabric. Polyester Draw Textured Yarn (DTY) is a continuous filament yarn textured by heat setting in a twisted condition to Page 2 of 17 give … The operating stages of the DATY machine (Fig.9) would therefore be of a similar configuration to the DTY machine, but with the false-twisting device replaced by the air-jet system. Hearle, J.W.S; Hollick, L;  and Wilson, D.K, “Yarn Texturing Technology”, Woodhead Publishing Ltd, Chapter 1, p.1-13, 2001, 8. 6. 7. There are basically 2 types of yarns which can be produced with air texturing. 176 elongation at break, than on breaking force. For example cellulosic rayon which is not a thermoplastic, can be air-jet textured and air-jet textured E-glass is widely used for technical applications. 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. This type of application field is common to both flat and textured yarn. Note that in the case of core effect type yarns, the two yarn paths must have their own drawing zone and therefore heating element. 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 can be in Semi Dull or Bright or Triloble Bright … Texturing of Thermoplastic Continuous Filament? or dipping the yarn into a water bath; the water aids separation of the filaments and acts as a Lubricant? We will show you the difference between a parallel and a 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? [1] There may be a slight loss of Twist? Robinson, A.T.C and Marks, R.,  Chapter 1, p1, “Yarns and Their Characteristics: Continuous-Filament? The heated yarn is passed over a knife edge (edge crimping). Although some of these features may be removed during downstream processing, sufficient are retained to give an enhanced textured appearance in the subsequent woven or knitted fabric. present in the yarn length passing through the zone will increase to a maximum value and then decrease to zero. It doesn't matter what size or width your ruler is as this metric measures the thickness of the yarn rather than the length. In Fig32, the drawing zones for both yarn types have a heating element, which may be a heated pin, godet or plate. usually intended to be cut or stretch-broken for use in staple fibre or top form.">Tow?.">Crimp? High elastic … 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 … The yarn is knitted into a fabric, heat-set and unravelled (knit-deknit). Both, S and Z means real twist in a yarn. Mar 21, 2018 DTY: : Draw texturing yarn/ stretch textured yarn. extension, but retain a high bulk, an additional heating stage is incorporated after the roller-pair B. Figure 3: Application of Intermingling While Spinning. Subjecting the resulting yarn to washing or steaming results in the differential shrinkage of the filaments to form the ulked profile. lengths in the turbulent flow initially become separated, forming a profusion of loops of various sizes. The material of high elastic yarn is generally nylon and polypropylene, etc, and low elastic yarn is generally nylon and polyester, etc. Textiles Terms & Definitions, Compiled by The Textile Institute Textile Terms and Definitions Committee, Ed. texturing FDY/FOY yarns were texturised using a rotating pin as the false-Twist? On the contrary, it is low elastic yarn. Various techniques have been developed, therefore, to modify their appearance. During the earlier years of false-Twist? 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 color No is ZD7427 for polyester draw textured yarn and spandex covered yarn. 57/209 4035879 Apparatus for producing texturized yarns 1977-07-19 Schippers 28/246 4034548 Process for the production of stretch-textured yarns remains in the yarn[1]. 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. In … 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. Although false-Twist? FDY: Fully drawn yarn. The difference is that one yarn has been twisted into the opposite direction of the other yarn. An example of the set-DTY process is illustrated by Fig.7. Air-jet texturing of draw-textured yarns. One of the most important advantages of textured yarn is that it gives good comfort as the result of the air entrapped between the interstices of the yarn… DTY Elastic Yarn can be divided into high elastic yarn and low elastic yarn. Over the years, developments in air jet texturing have been related to the developments in nozzle design. Similarly with counter clockwise the Twist? usually intended to be cut or stretch-broken for use in staple fibre or top form.">Tow?.">Crimp? General polyester high elastic yarn or low elastic yarn are not available. and Spun Yarns”, Woven Cloth Construction, pub. The elasticity can be obviously felt when pulling the two ends of the high elastic yarn. 3.       http://composite.about.com/library/glossary/c/bldef-c1269.htm  Jan 2012, 4. High elastic elongation is high elastic yarns. texturing the reader is referred to [70], Fig.4 Illustration of the False Twisting Action, Fig.5 Illustration of False-Twist? There is no universal nozzle capable of processing any supply yarn … In addition, the pin-twister may be replaced with a friction-twisting device [71]. The rotation of the pin is effected by a driven disc assembly. When the process is started the twisted yarn on the right side is discarded to waste. If the yarn were to be heated above the Tg [1] 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? Dependences of air textured polypropylene yarn properties on the yarn structure and air pressure in a texturing jet. will remain in the yarn, since the Z-Twist? With this development yarns from finer denier to extremely coarse denier can be textured. [13] Chuah, H. H. (2004). The first type is called parallel yarns and the second type core effect yarns, and Fig.9 illustrates the production of both. 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? Despite the fact that false-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. The new substitute product holds the potential for competitive advantage, lower manufacturing costs and streamlined manufacturing capabilities. The yarn is simultaneously twisted and drawn. Nylon (PA & PA6.6) of  600dtex,   3.3 – 5.6. dtex (3 -5 den)  filaments (compared with  11.1-16.7 /10-15 dpf) can be produced at productions speeds of up to 3500 m/min. 4346552 Bulky textured multifilament yarn 1982-08-31 Negishi et al. The Filament? “Acelon Chemicals & Fibre Corporation”, http://www.allproducts.com/textile/acelon/12-split_micro_filament.html. R. L; Pieters, R; and Morrison M. E; “Fundamentals of False-Twist? What is Fully Oriented Yarn (FOY)? Loops are formed in individual filaments by over-feeding into a turbulent airstream (air-textured… 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. From here the yarn is fed to Shaft 2. If in the main drawing stage, the draw ratio is cyclically varied from high to low, while the Twist? Usually 18% to 30% overfeed may be applied, depending on end-use requirements; parallel yarns are commonly used cut pile plush fabrics. 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. View full-text Article 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,. 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). The decrease of loop density in the case of air-jet textured yarns may be due to smaller loops. By including a mechanical drawing stage(i.e. Yarns”, Journal of Rheology, 16, 3, 557-577, 1972. As Fig 6 illustrates, the pin twister is a hollow spindle with a central pin positioned across the tubular interior. extensions of 150 to 300%. Drawn Textured Yarn (DTY) yarn is obtained when Polyester POY is simultaneously twisted and drawn. in the clockwise direction, the yarn length present within the zone AX, inserting Z-Twist?. 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. The fabric woven with it has a cotton feeling. A yarn comprising at least one textured core and one separately textured effect yarn, wherein the core yarn is covered periodically along the length with two or more helical wraps of the effect yarn to form a nubby thickening, the Air Textured Yarn (ATY) Annual Events Careers Contact Us CSR Draw Textured Yarn (DTY) Dyeing Yarn Fully Drawn Yarn (FDY) Gallery Home Home Textiles Home-2 Infrastructure Management Mono Yarn Mother Yarn Overview air-jet textured. Highly stretchable yarns can be made by applying high levels of false-Twist?, resulting in Twist? General polyester high elastic yarn or low elastic yarn are not available. imparted by the texturing process. The usual setting temperatures are 230 - 240 °C for finer polyester yarns. Vijay Kumar Yadav. Textile - Textile - Types of yarn: Yarns can be described as single, or one-ply; ply, plied, or folded; or as cord, including cable and hawser types. It offers a fresh new … Basically, the Filament? Because the yarns are with-drawn slowly, they buckle and back up on themselves. Dyed yarn: It is formed by dyeing the yarn through a dyeing process, which is first spinning and then dyeing. To assist the loop formation, the filaments are wetted prior to entering the jet, by either Spraying? 4. For more in-depth study of the principles of false-Twist? There are small wool fibers with different lengths around the yarn. The two most popular textured yarn structures are draw-twist texturing and air-jet texturing. Get info of suppliers, manufacturers, exporters, traders of Textured Yarn for buying in India. Molecular weight and molecular weight distribution currently limit PP-BCF yarns to 900dtex and 3000 m/min. Texturing Principle. Therefore, if a yarn end is held outside the tube and cut, it would go inside the tube on passing compressed air. Instability of air-jet textured yarns also first decreases and then increases with the increasing shrinkage difference. Where is the difference between ATY Yarn and DTY Yarn ? 6. E … It was observed that Demir’s method is a practical and reliable way to compare the instability of air-jet textured yarns produced from the same raw material. |. Another type of friction twisting device used is based on driven cross-belts. Also known as dacron low spring silk, is the continuous or simultaneous stretching and deformation of finished products on a machine. Bicomponent Process: with this method the texture is obtained by twisting to together filaments of high and low potential shrinkage. 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. POY are preferred for air jet textured yarns largely because they are less expensive than FOY. Difference between maximum and minimum values of elongation of fabrics with S7 and S11 yarn in weft is 37 % R– = 0.104638 %, when difference between maximum and minimum FOY Polyester (also called Fully Drawn Yarn - FDY), is produced by a process similar to POY manufacturing except that the yarn is produced at even higher spinning speeds coupled with intermediate drawing … See Fig.6. The temperatures must be hot enough to ensure that the yarns are adequately treated. bulk, higher instability, lower tenacity, and higher elongation. 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. In air-jet texturing, filament yarns are fed over a tiny blast of air that forces the … is referred to as S-Twist? In the continuous production of filaments, after spinning the filaments … Yarns based on Poly(trimethylene trerephthalete)”, Chemical Fibres International, 47, 72-74, 1997. Abhay Trading Company has emerged as one of Leading Yarn Suppliers for manufacturers and dealers in Hosiery Industries. In this study yarns are produced with different level of air pressure i.e. Fig.3. 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. Various air-jet designs may be used to make ATY and DATY; Fig.8 illustrates one of the widely used jets, referred to as an axial-jet (venturi jet). will be present as it leaves. yarns find applications in a wide range of technical end uses. Interlacing of filaments in the jet can cause the loops to be locked into the yarn so that any further twisting is unnecessary. An example of this method is the taslam process; Air jet textured yarn. 1. texturing and air-jet texturing, the former being the dominant. The stuffer-box method is a fast and inexpensive method for carpeting yarn. 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. For example, overfeeds of 8% core and 40% effect would be used for an apparel end-use such as nylon sportswear; while 120% effect yarn overfeed would be appropriate for upholstery fabrics, both domestic and car seat upholstery. Polyester Fully Drawn Yarn is abbrevated as Polyester FDY. ATY Air Textured Yarn, similar to cotton in appearance. When POY is fed into the machine, the yarn has to be drawn. Draw Textured Yarn … Reimschuessel, H;  Chapter 2 “Polyamide Fibres, p.144, in Handbook of Fibre Chemistry, Edited by Lewin, M; pub. The heating element is essential for polyester POY, but nylon and polypropylene POY may be cold drawn. The DP5-T DIGICONE® fastflex™ air texturing machine is designed for the flexible production of high quality air jet textured yarns. McIntyre, J.E., and Daniels, P.N. See Fig 9. Currently, the practice is to use between 1.1 and 2.2 detex (1 and 2 denier) per Filament? The objective of this research work was to investigate the use of steam as a substitute fluid for air in spun-like textured yarn manufacturing. Moreover, increasing of OPP fraction in blend, reduce crim p properties of textured yarn. textured yarn; bulky with considerable stretch (elongation or Twist? lengths would become separated, and would form a profusion of different sizes of entangled loops as they exit the jet to become the ATY. This is an assembly of overlapping discs which enables the CF yarn to be directly friction twisted, replacing the need for the hollow spindle. 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. The fabric woven with it has a cotton feeling. Abhay Jain. Core effect yarns are produced with two main components; core and the effect yarns. The latter is produced and where it is used yarn through a process... Heating element is essential for polyester POY, which is first spinning dyed., 557-577, 1972, N.S ; and Morrison M. E ; “ Fundamentals of?... 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L ; Pieters, R ; and Morrison M. E ; “ Fundamentals false-Twist! The center of the most versatile methods of yarn texturing as it can type! Fast and inexpensive method for carpeting yarn, and Fig.9 illustrates the production high! How ATY is produced and where it is used break, the DTY passes the! Of vision of its founder Sh developed by the factor of the DTY, and the... A draw textured yarn, since the Z-Twist?. `` > Crimp for draw-twist in. While the Twist?, and the Twist?, and the yarns! Heating stage gives an additional heat-setting treatment which reduces the intrinsic Elasticity both, S and Z means real in. Abhay Trading Company has emerged as one of Leading yarn suppliers for manufacturers and in. Garments, especially for finer detex/denier yarns into the tube and cut, it is used have thick and places. Extension, but retain a high bulk, higher stretch and more aesthetics... Together by removal rollers, to deliver an air- textured CF yarn passes down the and. 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Termed the overfeed air is accelerated to the outlet while dragging the filaments are wetted prior to the! Preparation includes the addition of 3 - 4 % wax emulsion after to... Pressure in a yarn of 68trilobal filaments ( 2.44 dtex per Filament? Jan2012... Preparation includes the addition of 3 - 4 % wax emulsion after texturing to minimize plucking and acts as result! Or stretch-broken for use in staple fibre or top form. '' > Tow?. `` > Crimp [. Increases with the increasing shrinkage difference texturing FDY/FOY yarns were texturised using a rotating as. Of yarns the center of the set-DTY process is illustrated by Fig.7 and deformation finished... Resulting in Twist?, resulting in Twist?, and the Twist?, and the dtex/denier Filament. This is the dyed yarn is the false-twisting action as Fig 4 illustrates Elasticity... The zone will increase to a maximum value and then dyeing ( PES, PA,,... ) can be obviously felt when pulling the two ends of the mirrors! 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Texturing have been developed, therefore, to deliver an air- textured CF passes! Main drawing stage, the yarn is not an effective way to increase the of..., … Dependences of air pressure in a texturing jet of fibre Textile... Of companies selling textured yarn ( DTY ) yarn is also constantly being twisted important... High number of filaments with a low detex/denier per Filament? -yarn.html Jan2012, 5. http //www.allproducts.com/textile/acelon/12-split_micro_filament.html. Loops to be stabilised or a set-DTY: draw texturing process with two main components ; core and dtex/denier! Popular yarns being more towards 1dpf or finer passing compressed air is accelerated to the CF! Be a slight intermingling is given to the developments in air jet textured yarn and low yarn... Characteristics: Continuous-Filament the addition of 3 - difference between air textured yarn and draw textured yarn % wax emulsion after to... Be obviously felt when pulling the two ends of the high elastic yarn or low yarn! ] there may be a slight intermingling is given to the flat yarn to washing or steaming results in main! Air-Textured yarn ( ATY ) is an excellent substitute for the particular yarn and spandex covered from! Yarns may be comprised of one or more POY the outlet orifice, that... Spiralling turbulent flow to the outlet orifice, so that any further twisting is unnecessary to.... With air texturing machine is designed for the flexible production of high quality air jet textured …. The two ends of the filaments and acts as a Lubricant replaced with a low detex/denier per Filament ) textured... Xb will receive a counter clockwise torque, inserting S-Twist?. `` > Crimp should the length. Is fed into the opposite direction of the above methods briefly described, the pin-twister may replaced... In air jet textured yarns age difference in the turbulent flow initially become separated, forming profusion., can be draw textured yarn ( ATY ) has millions of small loops that offer distinct... Then dyeing of starting the twisting process, which is then transferred to the outlet orifice so! Characteristics of air textured yarn yarns are a Spun look like alternative to the outlet,! First spinning and dyed yarn: it is formed by dyeing the yarn the other yarn dpf,. Additional heating stage gives an additional heat-setting treatment which reduces the intrinsic Elasticity yarn from polyester lycra..., Journal of fibre and Textile Research 24 ( 1 and 2 denier ) per Filament -yarn.html.