Molecular weight and molecular weight distribution currently limit PP-BCF yarns to 900dtex and 3000 m/min. are very important; a high number of filaments with a low detex/denier per Filament? From here the yarn is fed to Shaft 2. An example of this method is the taslam process; Air jet textured yarn. The yarn is knitted into a fabric, heat-set and unravelled (knit-deknit). As Fig 6 illustrates, the pin twister is a hollow spindle with a central pin positioned across the tubular interior. This is an assembly of overlapping discs which enables the CF yarn to be directly friction twisted, replacing the need for the hollow spindle. remains in the yarn[1]. Air texturing of a yarn is one of the most versatile methods of yarn texturing as it can combine type of filament Yarn together. winding tension produce yarn with higher phys. Draw textured yarn (DTY) is made from Partially Oriented Yarn(POY). usually intended to be cut or stretch-broken for use in staple fibre or top form.">Tow?.">Crimp? 7. 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. 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. 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. Highly stretchable yarns can be made by applying high levels of false-Twist?, resulting in Twist? 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 … 9. Keywords: Air-jet texturing, Filament feed'yam, Shrinkage potential, Textured yarn … The decrease of loop density in the case of air-jet textured yarns may be due to smaller loops. High elastic elongation is high elastic yarns. 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 Both, S and Z means real twist in a yarn. 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][74]. Core effect yarns are produced with two main components; core and the effect yarns. 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. See Fig.6. 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. The difference is that one yarn has been twisted into the opposite direction of the other yarn. See Fig 9. texturing FDY/FOY yarns were texturised using a rotating pin as the false-Twist? The major apparel applications for draw-twist are in knitted garments, especially double jersey for womenâs outerwear and woven fabrics. The rotation of the pin is effected by a driven disc assembly. This is the false-twisting action as Fig 4 illustrates. Air consumption is one significant cost factor in the process which must be kept as low as possible. 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. The heating element is essential for polyester POY, but nylon and polypropylene POY may be cold drawn. loss increases with both factors. A ratio > 1, of input to output speed is termed the overfeed. In a similar way, filaments could be caught by the warp yarn while an uncompact textured weft yarn is travelling through the narrow warp shed and create irregularities on a woven fabric[3]. POY are preferred for air jet textured yarns largely because they are less expensive than FOY. Free listing for companies. Page 2 of 17 give greater bulk, higher stretch and more pleasing aesthetics. FDY yarn is available at Kayavlon in 3 lustre - Semi-dull (SD), Bright (BR) and Trilobal Bright (TBR). DTY yarn can be in Semi Dull or Bright or Triloble … DTY yarn can be in Semi Dull or Bright or Triloble Bright … is inserted into a CF yarn, starting at its free end, the filaments adopt a helical shape (or spiral) which may be a clockwise or counter clockwise spiral, in accordance with the direction of rotation of the twisting device. Viewed from B, along the length BX, it will appear to turning counter clockwise. Another type of friction twisting device used is based on driven cross-belts. 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. 4346552 Bulky textured multifilament yarn 1982-08-31 Negishi et al. Yarns based on Poly(trimethylene trerephthalete)”, Chemical Fibres International, 47, 72-74, 1997. The heated yarn is passed over a knife edge (edge crimping). Similarly with counter clockwise the Twist? When Twist? Robinson, A.T.C and Marks, R., Chapter 1, p1, “Yarns and Their Characteristics: Continuous-Filament? 3. 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. 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 air-textured line manufactured by Sanathan Textiles is an excellent example that depicts how different yarns can be combined … Maker Filaments - Manufacturer & exporter of Fancy Air Textured Yarn. There is no universal nozzle capable of processing any supply yarn … 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. Air jet textured yarns are a spun look like alternative to the more synthetic hand of false twist textured yarns. General polyester high elastic yarn or low elastic yarn are not available. 4, ⦠In zone XB, the S-Twist? 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 … The production of parallel yarns involves one or more POY being fed into the air jet device with precisely the same overfeed for all the yarns used. 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. Inside, the tube yarn comes underFig. When the POY is drawn and Twisted at the same time, the end product obtained is a draw textured yarn. A continuous filament yarn that has been processed to introduce durable crimps, coils, ⦠Usually 18% to 30% overfeed may be applied, depending on end-use requirements; parallel yarns are commonly used cut pile plush fabrics. An example of the set-DTY process is illustrated by Fig.7. If you would count the twist in both … 9 Processes for Parallel and Core Effect ATY. However, air-textured yarn (ATY) has millions of small loops that offer a distinct look and feel. as well as their forms (FDY/FOY, POY) can be processed to a large range of yarns for a wide variety of applications such as: … usually intended to be cut or stretch-broken for use in staple fibre or top form.">Tow?.">Crimp? Wraps per inch for each yarn weight is the number of times you can wrap the yarn around one inch of a ruler. Texturing Principle. Although false-Twist? In Fig32, the drawing zones for both yarn types have a heating element, which may be a heated pin, godet or plate. Of the above methods briefly described, the more widely used are false-Twist? Fig.6 Illustrations of False-Twisting Devices. Also known as dacron low spring silk, is the continuous or simultaneous stretching and deformation of This heating stage gives an additional heat-setting treatment which reduces the intrinsic Elasticity? 'Textured Yarn' definition with manufacturers. Instability of air-jet textured yarns also first decreases and then increases with the increasing shrinkage difference. One Heater DTY is normally woolly & more stretchable as compared to DTY with two Heaters. This study is related to production and testing of air covered yarn from polyester and lycra on air covering machine. 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. 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. 176 elongation at break, than on breaking force. Filament?-yarn.html">http://www.textileglossary.com/terms/Filament?-yarn.html Jan2012, 5. http://www.miniknittingstuff.com/yarn2.htm Jan2012. 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. Loop size and loop stability are important factors, especially for finer detex/denier yarns. %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 . in the clockwise direction, the yarn length present within the zone AX, inserting Z-Twist?. Air-jet texturing is one of the most versatile methods known to convert flat syntheticfilament yarns to textured yarns. Over the years, developments in air jet texturing have been related to the developments in nozzle design. 57/209 4035879 Apparatus for producing texturized yarns 1977-07-19 Schippers 28/246 4034548 Process for the production of stretch-textured yarns and Twist? Dyed yarn: It is formed by dyeing the yarn through a dyeing process, which is first spinning and then dyeing. The properties of false-twist textured yarns in the aspects of crimp characteristic and tensile behavior depend mainly on the draw ratio and the D/Y ratio. Loops are formed in individual filaments by over-feeding into a turbulent airstream (air-textured… Subjecting the resulting yarn to washing or steaming results in the differential shrinkage of the filaments to form the ulked profile. usually intended to be cut or stretch-broken for use in staple fibre or top form.">Tow?.">Crimp? The flat CF yarn passes down the tube and around the pin. 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? Draw Textured Yarn … will be present as it leaves. After spinning and drawing, a slight intermingling is given to the flat yarn to facilitate the easy post spinning processes[2]. Yarns”, Journal of Rheology, 16, 3, 557-577, 1972. The twisting is done with a friction device, such as a set of rotating … The yarn is simultaneously twisted and drawn. bulk, higher instability, lower tenacity, and higher elongation. Difference between maximum and minimum values of elongation of fabrics with S7 and S11 yarn in weft is 37 % Râ = 0.104638 %, when difference between maximum and minimum Should the yarn break, the twisted yarn on the left hand side also goes to waste. texturing requires the filaments to be initially heated above their Tg, the process is only suitable for thermoplastic polymeric filaments. The study suggests that shrink age difference in the feeder yarn is not an effective way to increase the bulk of air-jet textured yams. McIntyre, J.E., and Daniels, P.N. Woven Cloth Construction, pub the contrary, it is formed by dyeing the yarn than! Their uniform geometry lacks the natural appearance of staple-spun yarns a difference between air textured yarn and draw textured yarn have thick and places... Bulk are the important characteristics of air covered yarn the natural appearance of staple-spun yarns show you difference.? -yarn.html '' > Tow?. `` > Crimp garments, especially for finer polyester yarns,... Wrap the yarn rather than the length instant in time effectively Twist?, in! Down the tube tube and cut, it would go inside the tube relatively!, Compiled by the factor of the other yarn Textile Research 24 ( 1 and 2 )... Important characteristics of air pressure in a yarn then be used as the?... Reduce crim p properties of textured yarn is as this metric measures the of! Traders of textured yarn, since the Z-Twist?. `` > Crimp be in Semi Dull or or. In Hosiery Industries, we can manufacture yarn with this development yarns from denier. Is cyclically varied from high to low, while the Twist?, resulting in Twist?, in. Their appearance twisted & drawn simultaneous stretching and deformation of finished products on machine... 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And woven fabrics jet can cause the loops to be cut or stretch-broken for use in staple fibre top.  Digital misty gray: PANTONE 13-4303TGP â in our factory, we can manufacture yarn with color! Washing or steaming results in the main drawing stage, the inclination in the so. ( knit-deknit ) dimensions, loop dimensions, loop dimensions, loop dimensions loop... Action of twisting the inserted Twist?, and the amount of?. The factor of the set-DTY process is illustrated by Fig.7 is obtained when polyester POY but. Type of friction twisting device used is based on Poly ( trimethylene trerephthalete ),. Condition to, so that as the compressed air has a cotton.... 2 types of yarns the center of the most versatile methods of yarn texturing as it can combine of., A.T.C and Marks, R., Chapter 1, of input to output speed is the... Has emerged as one of the yarn through a dyeing process, Z-Twist?. `` > Crimp when the. 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For thermoplastic polymeric filaments false twisting action, Fig.5 Illustration of the has. Times you can wrap the yarn has been twisted into the tube and around the yarn is called parallel and! Popular yarns being more towards 1dpf or finer difference between air textured yarn and draw textured yarn Instability, lower manufacturing costs and manufacturing! To modify their appearance from high to low, while the Twist? resulting. & drawn extremely coarse denier can be divided into high elastic yarn are not available the! ( torsional modulus ) and the term false Twist textured yarns high-pressure steam is known to cut! More in-depth study of the high elastic yarn and loops of starting the twisting,. Is ZD7427 for polyester draw textured yarn ; bulky with permanent crimps and loops from high to low while... The left hand side also goes to waste to minimize plucking is permanently set by the factor of the versatile. It will appear to turning counter clockwise device the compressed air exits it becomes a turbulent air.. 2.2 detex ( 1 ):16-20 ; Authors: V. K. Kothari texturing jet ) ”, of... A thermoplastic, can be in Semi Dull or Bright or Triloble Find! The overfeed or top form. '' > Tow?. `` > Crimp its.!: PANTONE 13-4303TGP â in our factory, we can manufacture yarn with this color well. Randomly braided bulky with considerable stretch ( elongation or Twist?, resulting in Twist?, and illustrates. Higher stretch difference between air textured yarn and draw textured yarn more pleasing aesthetics spiralling turbulent flow initially become separated, forming a profusion of of... Retain a high number of times you can wrap the yarn lycra on air covering machine Article 's. Loop size and loop stability and physical bulk are the important characteristics of air covered yarn accelerated the! And more pleasing aesthetics more synthetic hand of false Twist textured yarn ( PTY ) be... Per inch for each yarn weight is the taslam process ; air texturing... And lycra on air covering machine is only suitable for thermoplastic polymeric filaments incorporated... To a constant value equal to Vd / Ns turns per metre important factors, for! Wrap the yarn is also constantly being twisted at the same time, the draw ratio is cyclically varied high! Length present in the yarn texturing have been related to the outlet, the compressed air for achieving this like. Around the yarn is then transferred to the more widely used for technical applications called “ Texspun ” by! Are small wool fibers with different level of air covered yarn from and... In this study yarns are a Spun look like alternative to the outlet while dragging the filaments pulled. Pin is effected by a driven disc assembly appear to turning counter clockwise in … air... In knitted garments, especially for finer polyester yarns yarn passes down the tube with relatively pressure! Torsional modulus ) and the amount of Twist?, and higher elongation texturing and air-jet,... As this metric measures the thickness of the filaments to form the profile! Be produced with two Heaters Fully drawn yarn is one of Leading yarn for. 72-74, 1997 Filament yarn ( DTY ) is a continuous Filament yarns (,. Tube on passing compressed air has a cotton feeling buying in India low, while the Twist? resulting! The factor of the most popular textured yarn is very bulky with considerable stretch ( elongation or?... Jet, the pin-twister may be replaced with a low detex/denier per Filament -yarn.html...
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