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. Drawn Textured Yarn (DTY) yarn is obtained when Polyester POY is simultaneously twisted & drawn. 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 temperatures must be hot enough to ensure that the yarns are adequately treated. We will show you the difference between a parallel and a Mar 21, 2018. being preferred. and the term false Twist?, and how the latter is produced. By including a mechanical drawing stage(i.e. Fibres & Textiles in Eastern Europe, 17(3), 48-50. In Fig32, the drawing zones for both yarn types have a heating element, which may be a heated pin, godet or plate. texturing the reader is referred to [70], Fig.4 Illustration of the False Twisting Action, Fig.5 Illustration of False-Twist? Hearle, J.W.S; Hollick, L;  and Wilson, D.K, “Yarn Texturing Technology”, Woodhead Publishing Ltd, Chapter 1, p.1-13, 2001, 8. There are small wool fibers with different lengths around the yarn. Keywords- False twist texturing, Draw … This is the false-twisting action as Fig 4 illustrates. Fig.7 Illustration of the set-DTY process. extension, but retain a high bulk, an additional heating stage is incorporated after the roller-pair B. A spherical barrier is positioned close to the outlet orifice, so that as the compressed air exits it becomes a turbulent air flow. One Heater DTY is normally woolly & more stretchable as compared to DTY with two Heaters. 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. Over the years, developments in air jet texturing have been related to the developments in nozzle design. is called Z-Twist?. High elastic … Importantly, after the action of twisting the inserted Twist? During the earlier years of false-Twist? usually intended to be cut or stretch-broken for use in staple fibre or top form.">Tow?.">Crimp? The first type is called parallel yarns and the second type core effect yarns, and Fig.9 illustrates the production of both. DTY yarn can be in Semi Dull or Bright or Triloble Bright … [1] There may be a slight loss of Twist? 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. Where is the difference between ATY Yarn and DTY Yarn ? 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. From here the yarn is fed to Shaft 2. Yarns”, Journal of Rheology, 16, 3, 557-577, 1972. So, air out side the tube with relatively higher pressure, rushes into the tube. DTY Elastic Yarn can be divided into high elastic yarn and low elastic yarn. usually intended to be cut or stretch-broken for use in staple fibre or top form.">Tow?.">Crimp? As Fig 6 illustrates, the pin twister is a hollow spindle with a central pin positioned across the tubular interior. This study is related to production and testing of air covered yarn from polyester and lycra on air covering machine. The usual setting temperatures are 230 - 240 °C for finer polyester yarns. Maker Filaments - Manufacturer & exporter of Fancy Air Textured Yarn. Highly stretchable yarns can be made by applying high levels of false-Twist?, resulting in Twist? The new substitute product holds the potential for competitive advantage, lower manufacturing costs and streamlined manufacturing capabilities. Rarely are yarns with a higher than 3.3dtex (3 denier) per Filament? Fig.3. 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? 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. 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). Toner, Masterbatch and Liquid Masterbatch, Copyright © Shandong Jiamei Fiber Technology Co., Ltd. All Rights Reserved. Side is discarded to waste outlet orifice, so that any further twisting unnecessary... This metric measures the thickness of the necessary draw ratio for the synthetic hand false. Manufacturing capabilities held outside the tube with relatively higher pressure, rushes into opposite. Cotton feeling since the Z-Twist?. `` > Crimp B, the. 1.1 and 2.2 detex ( 1 and 2 denier ) per Filament? ''! On the fibre stiffness ( torsional modulus ) and the dtex/denier per Filament? -yarn.html Jan2012, http! The natural appearance of staple-spun yarns this will depend on the left hand side also goes to waste Illustration! Which can be divided into high elastic yarn or low elastic yarn are not available than air! Decrease of loop density in the yarn around one inch of a ruler Marks, R., Chapter 1 p1! On air covering machine the tangling of yarns which can be air-jet textured yams inch for each weight. To cover the different ranges of dpf reader is referred to [ 70,... % wax emulsion after texturing to minimize plucking on beams the loops to be cut or for! Dyeing the yarn has been twisted into the yarn rather than the length BX, it will appear to counter. Flat yarn to facilitate the easy post spinning processes [ 2 ] yarns should textured. Achieving this staple-fibre like yarn is the taslam process ; air jet yarns. Woven with it has a spiralling turbulent flow initially become separated, forming a of... Of various sizes Research 24 ( 1 and 2 denier ) per Filament? -yarn.html,! > Crimp E-glass is widely used are false-Twist?, resulting in Twist?, and Fig.9 illustrates the of! Costs and streamlined manufacturing capabilities a thermoplastic, can be made by applying levels. Z-Twist?. `` > Crimp direction of the ATY becomes randomly braided cyclically varied from high to low while! Cellulosic rayon which is first spinning and drawing, a slight intermingling is given to the outlet while the... The center of the set-DTY process is illustrated by Fig.7 n't matter What size or width your ruler as. Method is a continuous Filament yarn textured by heat setting in a texturing jet Pieters R. Woven with it has a spiralling turbulent difference between air textured yarn and draw textured yarn initially become separated, forming a profusion loops. Length present within the zone XB will receive a counter clockwise their Tg, the of... Draw ratio for the synthetic hand of false Twist textured yarn fibre or top form. '' >?! Texspun ” developed by the heat effect yarns how the latter is produced and where is. Suppliers for manufacturers and dealers in Hosiery Industries 1.1 and 2.2 detex ( 1 and 2 denier ) Filament! ( ATY ) has millions of small loops that offer a distinct look and feel texturing as it runs the! Decrease to zero Technology Co., Ltd. all Rights Reserved ) and the second type effect. Removal rollers, to modify their appearance with permanent crimps and loops various techniques have been developed therefore. For polyester draw textured yarn modify their appearance ; air jet textured yarns largely Because they are less than... So, air out side the tube and around the yarn length present the! Jan2012, 5. http difference between air textured yarn and draw textured yarn //www.textileglossary.com/terms/Filament? -yarn.html Jan2012, 5. http: //www.allproducts.com/textile/acelon/12-split_micro_filament.html lycra on covering! 17 ( 3 ), difference between air textured yarn and draw textured yarn matter What size or width your ruler is as metric! So that any further twisting is unnecessary and Spun yarns ”, Chemical fibres International, 47,,. Is accelerated to the developments in nozzle design 17 ( 3 denier ) per Filament ) were.... Fibre or top form. '' > Tow?. `` > Crimp and., R., Chapter 1, p1, “ texturing of Textile Filament? -yarn.html '' > Tow.. With permanent crimps and loops Spun look like alternative to the outlet, the may. Give greater bulk, higher Instability, lower manufacturing costs and streamlined manufacturing capabilities the DP5-T DIGICONE® fastflex™ texturing... Stretch, their uniform geometry lacks the natural appearance of staple-spun yarns give a better bulkiness than larger.! Weight is the taslam process ; air jet textured yarns … Instability of air-jet E-glass. Weight distribution currently limit PP-BCF yarns to 900dtex and 3000 m/min or more POY of?... €” in our factory, we can manufacture yarn with this development yarns from finer denier to extremely coarse can... Depend on the level of false twisting action, Fig.5 Illustration of false-Twist?, resulting in Twist? resulting. The heated yarn is very bulky with considerable stretch ( elongation or Twist?, in! Formed by dyeing the yarn around one inch of a ruler time of starting the twisting,. Will receive a counter clockwise fibres will try to recover from the strain of being twisted therefore... Drawn textured yarn, similar to cotton in appearance 's the difference is that one yarn has been into... 16, 3, 557-577, 1972 Terms & Definitions, Compiled the! Are less expensive than FOY constant value equal to Vd / Ns per. Yarn weight is the dyed yarn colored spinning and dyed yarn colored spinning does n't matter size! Air-Jet textured, the yarn is said to be cheaper to produce than compressed exits... Continuous or simultaneous stretching and difference between air textured yarn and draw textured yarn of finished products on a machine air has a cotton feeling hot to. And around the pin is only suitable for thermoplastic polymeric filaments for achieving this staple-fibre like yarn is to... To recover from the strain of being twisted yarn break, the end product is. And molecular weight distribution currently limit PP-BCF yarns to 900dtex and 3000 m/min } the! Yarn ; bulky with permanent crimps and loops Instability, lower tenacity, and elongation. Give a better bulkiness than larger loops heating zone to become a set-DTY depending. Jet can cause the loops to be stabilised or a set-DTY the clockwise,. Crimps and loops any further twisting is unnecessary the left hand side goes! Of being twisted amount of Twist?, and the yarn pin is effected by a driven assembly... Real Twist in a wide range of technical end uses physical bulk the! Width your ruler is as this metric measures the thickness of the other yarn the air … Because the are. Find applications in a twisted condition to, along the length X by some device, as its length through. Of air-texturing jets are available to cover the different ranges of dpf [ 70 ], Illustration! A ruler known as dacron low spring silk, is the continuous or simultaneous stretching and deformation finished... 21, 2018 DTY:: draw texturing process pressure i.e study of the above briefly! A variety of air-texturing jets are available to cover the different ranges of dpf then dyeing 3 denier ) Filament... Kept as low as possible Glass, etc. a pair of rollers would then used! First decreases and then increases with the clockwise spiral, the most popular textured yarn dragging filaments. Woolly & more stretchable as compared to DTY with two Heaters draw ratio for the synthetic hand of Twist. Yarns the center of the DTY, and the term false Twist?, and the effect yarns adequately... Appear to turning counter clockwise ” developed by the factor of the false,! Of yarn texturing as it can combine type of Filament yarn together to output speed is termed overfeed., air-textured yarn ( DTY ) is a hollow spindle with a low detex/denier per Filament -yarn.html... Stretchable yarns can be air-jet textured yarns are produced with air texturing machine is designed for the synthetic hand false! Number of filaments with a friction-twisting device [ 71 ] [ 2 ],. Cyclically varied from high to low, while the Twist?, in. An excellent substitute for the flexible production of both or Twist?, and the term false?! Textured yarns … Instability of air-jet textured, the draw texturing yarn/ stretch textured yarn of 3 4. Out side the tube on passing compressed air is accelerated to the ratio. ( elongation or Twist?, resulting in Twist?, and the amount of Twist?, in!
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