Furthermore, the crimp is regularly distributed along the yarn. Morris Cotton Silk and Man-made Fibres Research Association, Shirley Institute , Didsbury, Manchester 20 Jan 1, 2016 · In the false twist texturing process, due to the action of mechanical forces and heat, a disorientation of structural elements happens at all levels of the supramolecular structure. The short and straight yarn path in the texturing zone is a key feature of the TG. 1 False-Twist Texturing. They have moderate stretch (100-150%) with high bulk. The heat for drawing is normally provided by heated rolls or godets. Texturing Unit Barmag FK 1000 false twist texturing machine was used for preparing stretch, set and intermingled yarns with the friction twister and Scragg Shirley CS 12600 Minibulk false twist texturing machine was used for stretch yarns with the pin twister. This page will explain how ATY is produced and where it is used. In the predominantly used false-twist texturing process, the yarn is damaged during twist insertion caused by friction between yarn and texturing discs in the false Jun 29, 2022 · Briefly introduce the main process parameters of the texturing machine, namely stretching multiple, texturing speed, deformation temperature, false twist tension, winding tension, etc. 2 BCF draw-texturing machine 6. Let us now look at the dynamics of false twisting Consider the above drawing with the yarn twisted into two twist directions and try to imagine the yarn to be endless. Created by the authors based on [2,4,10,15]. PART I: THE DEVELOPMENT OF AN IMPROVED METHOD W. The preliminary modelling of simulation steps required in the development of a generalised CAD (Computer-Aided-Design) package for textile machinery variations in the false-twist-texturing process and demonstrated that an oscillating twisting rate can generate an amplitude of twist in the downstream zones greater than the original variation in the texturing zone. False-twist texturing plants used these data to set up a process and improve their operations. The schematic below shows the most important steps in the manufacturing of DTY. It is a process that involves twisting a yarn at a high speed to create a spiral crimp, which changes the physical and mechanical properties of the yarn, giving it an increased bulk and a softer feel. This crimping action leads to DOI: 10. The yarn is taken from the supply package and fed at controlled tension through the heating unit, through a false-twist spindle or over a friction surface that is typically a stack of rotating discs called an A process is described for false twist texturing a synthetic multifilament yarn by friction twisting means wherein the bleeding of real twist through the false twisting zone is arrested, thereby eliminating a source of yarn streaking in dyed goods produced from said yarns. Based on the author's extensive experience in the textile industry, False twist textured yarns is a standard reference on the key technologies and process issues involved in the manufacture of An account is given of an experimental investigation into the effects of the major parameters involved in threadline instability in the false-twist draw-texturing process when disc-friction twisting units are used. 30 2BA/2BAG which allows the false-twist texturing of high quality fine and medium count Polyamide and Polypropylene yarns. This page will explain what false twisting is and why it has been such a tremendous success. False twist is the action by which twist is inserted into a yarn at the position of contact with a twisting device, and is then removed by the same device as the yarn leaves contact with it. New work described in this paper shows that, by texturing at constant bulk Air jet textured yarns are a spun look like alternative to the more synthetic hand of false twist textured yarns. Week 2 : False twist texturing, principles mechanism Week 3 : False twist texturing process parameters Week 4 : Draw-texturing, need Week 5 : Draw –texturing process parameters Week 6 : Friction texturing principles Week 7 : Friction texturing NCV drives Week 8 : Air Jet Texturing Week 9 : Air jet Texturing process parameters The changes experienced by a yarn during its progress through the falst-twist-texturing system are examined. The final chapters look at applications of false twist textured nylon, polyester and polypropylene yarns as well as the future of false twist texturing. 1237241 Dependence of Structural Characteristics of Polyamide Textured Yarns on the Parameters of the False ‘V’ Shape, Straight Process Zone, Double Heater, False Twist, Manual Doffing Draw Texturing Machine Straight yarn path through the entire texturing zone, offering low yarn stress, Less torque requirement to insert high twist, versatile thread suitable for Micro, Fine and Coarser denier draw textured filament yarns Replace coarse count yarns or heavy denier false twist textured yarns. 1177/155892501100600307 Corpus ID: 16881824; Investigating the Effect of False Twist Texturing Process on the Color Coordinates Variation of Spun-dyed Polyester Filament Yarns Jan 17, 2024 · Schematic of the false-twist texturing process. With 300% stretch, modified stretch yarn can be produced. thermoplastic false-twist crimped torque yarn is well known in the art, as set forth in such teachings as U. Texturing process by machines equipped with an on-line quality control system, air-intermingling and automatic doffing systems. False twist texturing machine is the most successful example of false twist application. Fifty years With the launch of false twisting, the process speeds of twist texturing accelerated from a few meters per minute to production speeds of more than 1000 m/min. Barmag FK 1000 false twist texturing machine was used for preparing stretch, set and intermingled yarns with the friction twister and Scragg Mar 1, 2012 · This study covers the investigation of the effect of cross-sectional shape of fiber (round and trilobal) and texturing process temperature (150, 175 and 200 0C) on air permeability of false twist Apr 11, 2015 · A heat-set coil within each filament results; the yarn itself has no twist (hence the name “false-twist). Sep 1, 2011 · Results show that this innovative method of false twist texturing can achieve high bulk levels above 40% with good process stability at 800 m/min. FALSE TWIST TEXTURING. In every step of his course you will get to know the process through the eyes of an experienced Jul 9, 2012 · False twist texturing is a popular method of texturing filament yarns that works on the principle of twist–set–detwist. No. A study of tension surging and of the properties of the resultant yarns is reported. The texturing process for false twist fixed (FTF) comprises two thermal zones (heaters), whereas the study evaluates influence of the second zone, also known as fixing texture zone, analyzing the influence of fixing step by the interaction of the variables of yarn overfeeds into the second heater and second heater temperature in the skein Jan 1, 2015 · As the development of production processes continues, extrusion spinning and false-twist texturing may become the next process integration, producing fine-count CF yarns for apparel. Even though the newer jet process has been integrated with spinning, it is still necessary to interpose a drawing stage. Sep 1, 2003 · In the false twist texturing process, due to the action of mechanical forces and heat, a disorientation of structural elements happens at all levels of the supramolecular structure. Other articles where false twisting is discussed: man-made fibre: Crimping: One popular texturizing process is false-twisting. False-twist texturing, sometimes also called false-twist draw-texturing, is based on a technique patented by Finlayson and Happey in the early 1930s [12]. 1 Layout of the BCF machine Unlike the false-twist texturing machine the integrated process does not The results of extensive research about draw texturing of polyester fiber are presented. The properties of the textured yarn can be altered by changing these parameters [1]. [3] modeled the false twist texturing process in order to predict the crimp stability of stretch yarns and tenacity of set yarns that showed the applicability of ANN for modeling this twist texturing method is the most common process. By combining thermal and mechanical action, thermoplastic fibres acquire a permanent wavy shape. Modified stretch yarns: They are produced by the presence of second heating zone during false twist or edge crimping process. The relationship between the number of twists set in the heater and the crimp rigidity of the textured yarn has also been looked into. The yarn is cooled in a highly twisted state, so that the twist geometry is set, and then the yarn is untwisted. Mar 29, 2012 · The final chapters look at applications of false twist textured nylon, polyester and polypropylene yarns as well as the future of false twist texturing. Finally The effect of tension in the winding zone of the false-twist-texturing process on the crimp properties of textured polyethylene terephthalate yarn has been investigated. In every step of his course you will get to know the process through the eyes of an experienced Texturing is a process to give crimp to flat filament yarns in order to improve their elasticity and handle. 2,803,109, one of the so-called “single-heater patents” wherein crimped, wavy or fluffed yarns, highly twisted straight compact yarns or crepe yarns are produced from drawn or undrawn thermoplastic feed yarns by setting a yarn in a twisted state under sufficiently high The final chapters look at applications of false twist textured nylon, polyester and polypropylene yarns as well as the future of false twist texturing. This study comprises investigations of th Nov 18, 2008 · an improved method of friction-twisting in the false-twist-texturing process. The yarns are mainly crimped with the help of the so-called false-twist texturing process (FTTP). Mar 1, 1999 · The possibility of feeding false-twist textured yam in air-jet texturing to obtain a yam with higher bulk has been studied. Draw texturing was done on a rebuilt Barmag FK 4 production machine. Thus, the maximum yarn temperature in the end of the heater can depends on the particular filament Feb 1, 2010 · process in false-twist texturing, and it seems that some fraction of twist is maintained in the . Studying the correlation between texturing process parameters Most textured yarns are false twist textured. Sep 1, 2003 · The production of textured filament yarns by false twist texturing is an important commercial method that requires heating. The yarn is twisted, heated and cooled to set the twist (Fig. The most important parameters, considerably influencing textured yarn structure and properties, are: texturing Jan 9, 2023 · False Twist Texturizing Method. Sep 8, 2015 · The inter-fiber bonds break and reform during the texturing process. The twisting and subsequent untwisting of the yarn is the false twist principle that gives the process its name. 4 References 27 3 Yarn texturing machine design 28 HE in HE friction textured yarn stands for "high elasticity" as thanks to the single heat setting process, the twist is relatively well kept in shape (thus also often called single heater yarn or stretch textured yarn). Air Nov 8, 2001 · Yarn Texturing Technology covers all the major techniques including twist-texturing, jet-screen texturing, false-twist process, BCF processes and air-jet texturing in detail. The behavior of twist of filaments passing through the twisting zone, including a heater, has been analysed by an experimental false-twisting apparatus under various texturing conditions. Jun 29, 2022 · Excessive false-twist tension is not good for the processing of fine denier yarn, and it is easy to break. False twist texturing II. 10. 21). The purpose of the process is to heat set the twist deformation so that after cooling and twist removal, the filaments will seek to return to their set helically crimped paths. Based on the author's extensive experience in the textile industry, False twist textured yarns is a standard reference on the key technologies and process issues involved in the manufacture of The effect of first heater temperature on the properties of poly (ethylene terapthalate) filaments was characterized through measurements of tenacity, breaking elongation, boiling shrinkage, crimp stability, crimp contraction and crystallinity. Quantitative and qualitative information is given to describe these effects. TSP continually visit customer’s sites to give expert advice and service. Water pressure has a significant positive Jul 2, 2016 · Draw texturing was done on a rebuilt Barmag FK 4 production machine. A more Investigating the Effect of False Twist Texturing Process on the Color Coordinates Variation of Spun-dyed Polyester Filam ent Yarns Mohammad Amani Tehran, Bahareh Azimi, Mohammad Reza Mohades Mojtahedi Department of Textile Engineering, Amirkabir University of Technology, Tehran, IRAN Correspondence to: Mohammad Amani Tehran email: amani@aut. In this technique to manufacture drawn textured yarn the multi-filament yarn moves through a false twist texturizing machine in the following order: feed roller, heating roller, cooling roller, second heater, oil roller, twister, and take-up roller. 30 2BA/2BAG double density texturing machines has been developed for the production of twist-free/S+Z 2-ply draw textured yarns. In this study, the transient two dimensional modeling of the yarn, heated by high temperature heaters in a false twist texturing process was developed in order to investigate the influence of various heating conditions on the yarn temperature distribution and to quantify TEX2000-L was developed for false-twist draw texturing process on a small/medium scale and became a hit with innovation centres, universities and master batch producers. On the basis of the results obtained from routine tests for textured yarns, it is confirmed that the quality of the yarns resulting from both surging and post-surging modes is not acceptable. Jan 10, 2023 · The main processes are: false twist texturing (fine filament yarns, mostly for clothing), air-jet texturing (fine filament yarns, mostly for clothing), mechanical compression chamber texturing (production of staple fibers), gas-dynamic compression chamber texturing (carpet yarns, BCF). Texturing methods have been developed to overcome this problem. Jan 1, 2016 · Results show that this innovative method of false twist texturing can achieve high bulk levels above 40% with good process stability at 800 m/min. JGT1000D DTY Machine, Yarn Draw Texturing Machine mainly used for POY yarn, through tensile and elastic energy in false twist deformation processed into a low false twist textured yarn (DTY polyester stretch yarn), processing in each ingot will read S and Z twist of double wire directly to step into a partnership with no residual torque silk, relative to the spindle joint Sep 1, 2013 · As false-twist texturing is a process which includes close interactions between machine working parameters and textured yarn properties, the effect of process parameters on yarn properties have been widely investigated. False-twist texturing method is the most common process. False twist texturing machine mainly processing Nylon/POY yarn into false-twist DTY draw textured yarn. Apr 7, 2024 · The yarns are mainly crimped with the help of the so-called false-twist texturing process (FTTP). Schematic of the false-twist texturing process. Summarises the key principles, technologies and process issues in the manufacture of high-quality false twist textured yarns. 1 The concept of false twist texturing 14 2. Created by the authors based on [1,9,10,15]. Improvements of package shape, parameters can be independently set for each deck, the winding tension can be fine-tuned according to the actual situation which broadens the false-twist texturing process adjustment range. False twist texturing machines, regardless who offers them, all work on the same principle. Alan Fellingham’s course on False Twist Texturing is the most complete course offered on CD today on this subject. One indication of this is the development of a false-twist texturing system that uses rotating heated cylinders instead of a conventional heater ( Recent Jan 1, 2009 · As false-twist texturing is a process which includes close interactions between machine working parameters and textured yarn properties, the effect of process parameters on yarn properties have The false-twist texturing process is a multi-parameter process. in the form of an aqueous emulsion, and false twist texturing the finished yarn in a machine having a short high-temperature This book covers all the major techniques including twist-texturing, jet-screeen texturing, false-twist process, BCF processes and air-jet texturingare in detail. In this work, the influence of technical-technological parameters in the false twist texturing process on structural The universal model of a single disc presented in Part I of this series is applied to a typical triple-stack multi-disc spindle, and a computer simulation is made for a polyester multifilament yam. 66, 123 (1975). It was found that, all The false-twist texturing process is a multi-para-meter process. The process itself is inadequately understood, and the ultimate goal of the work is to achieve a better understanding of the mechanism of the texturing process and to make suggestions for more Apr 1, 2021 · The effect of tension in the winding zone of the false-twist-texturing process on the crimp properties of textured polyethylene terephthalate yarn has been investigated. Supply yarn parameters are shown to significantly affect the textured product. Jun 30, 2017 · Trajkovic D, Savic M, Kostic M, Majstorovic D, Stojanovic P, Stepanovic J. Here, the way in which these principles are employed in a production environment will be examined. If a friction false twister consisting of two endlessly rotating friction surfaces gripping the yarn between them is used, the yarn pull is regulated at a constant value by controlling the force, with which the friction surfaces are pressed against one another, as a 1. S. an improved method of friction-twisting in the false-twist-texturing process. In this study, the transient two dimensional modeling of the yarn, heated by high temperature heaters in a false twist texturing process was developed in order to investigate the influence of various heating conditions on the yarn temperature distribution and to quantify The origins of texturing Scientific and engineering principles in twist-texturing Scientific and engineering principles in other texturing processes False-twist process False-twist textured yarns BCF … Expand TSP are experts in false twist texturing. Our site visits and services also cover customers with Current false-twist texturing processes are all carried out under constant-temperature conditions. Jun 30, 2017 · In the false twist texturing process, due to the action of mechanical forces and heat, a disorientation of structural elements happens at all levels of the supramolecular structure. False twist textured yarns with deniers of 400 or greater required multiples of 150 den yarns textured individually and combined before windup. The relations involved, between twist, tension, and torque, and the process parameters, are shown to be those of a feedback system, and the dynamic operation of the process is considered, in a general way, by using this concept. False-twist texturing process can be investigated based on three main parameters, which are It also reviews common process performance and quality problems and how they can be resolved, as well process control, quality assurance and costs. False twist texturing machine for the texturing of synthetic threads in one handling position at a time, in which a heating device and a false twist unit are disposed within a false twist zone. The principles of on-line bulk measurement are briefly discussed and it is shown theoretically that, if a tension barrier is deliberately introduced into the second zone of the false-twist False twist texturing. 5604/12303666. Substitute the fixed clamps with feed rolls. All modern texturing machines operate according to the false twist principle. Dependence of Structural Characteristics of Polyamide Textured Yarns on the Parameters of the False Twist Yarn Texturing Process. false-twist texturing process. 1: The draw ratio refers to the low strength, elongation, and unstable macromolecular structure of POY silk without elastication, and it is not suitable for direct weaving. The master batches were prepared by Poddar Pigment Co. A process for the texturing of yarns of synthetic filaments comprising applying to a synthetic yarn filament a finish containing at least one water-soluble lubricant (A) and one water-insoluble liquid (B) with a viscosity of 2 to 50 mPas at 20° C. The fiber waviness or crimp increases volume, resilience, moisture absorption, etc. This process depends on parameters such as tension, twist, and heater temperature. Furthermore, the effect of different processing parameters including D/Y ratio, twist, heater temperature, texturing speed, overfeed, the draw ratio and intermingling process on the color coordinates variation of textured yarns was studied. Although these methods are all in use, the most widely used is false-twist texturing followed by air-jet texturing. Its production speed can reach 1000 m/min or more, with high efficiency and low operating cost. 3 Twist application methods 21 2. In this process, a flat filament yarn is twisted, set and untwisted to impart required crimp, stretch and elasticity. It was found that, all other conditions remaining unchanged, high wind-up tension results in low crimp retraction. 1177/155892501100600307 Corpus ID: 16881824; Investigating the Effect of False Twist Texturing Process on the Color Coordinates Variation of Spun-dyed Polyester Filament Yarns The fundamental principles behind the false-twist, draw-texturing process have been explained in previous chapters. It starts with an explanation of the real twist texturing and finishes by looking at the speeds, which can be reached today using false twist texturing. 2 The false twist mechanism 19 2. Filament Yarns and Texturing Slide 54 False Twist Process Variables The key parameters employed during false twist texturing and their influence on the properties of the yarn as shown in this diagram. Jul 14, 2022 · False Twist Texturing Machine, Texturising Machine. After the yarn emerges Download scientific diagram | False twist texturing process parameters from publication: THE EFFECT OF FIBER CROSS-SECTIONAL SHAPE AND TEXTURING TEMPERATURE ON KNITTED FABRIC AIR PERMEABILITY Partially oriented yarns (POY) are of great importance in tex-turing. … DOI: 10. Based on the author’s extensive experience in the textile industry, False twist textured yarns is a standard reference on the key technologies and process issues involved in the manufacture of The paper is divided into four sections: an introductory section which describes the false twist texturing process and reviews what modelling work has been done to date; this is followed by a sec tion which describes the simulation techniques employed and the mathematical models used; a results section where the simulation techniques are False Twist False twist is a texturing method used in the manufacturing of synthetic fibers and yarns to produce a more bulky, soft, and stretchy product. Discusses the development of textured yarns, the basic principles of texturing and the process of false twist texturing. The physics of both processes and the combined influence of drawing and texturing on the structural and textile properties of the yarns are discussed. In the 1950s, when the multi-stage Helanca process, gave way to false-twist texturing with the Fluflon machine, the large spindle rotated at 30,000 rpm to give a yarn speed of 10 m/min. If you choose to add network components on the equipment, you can also process network yarn. The false twist texturing method is one of the most common texturing techniques. Sep 1, 2013 · Azimi et al. In this study, color coordinates variation of spun-dyed polyester filament yarns subjected to the false twist texturing process was investigated. This article shows that data mining, partial least squares modelling and genetic algorithm optimisation can provide further use for these data to benefit the SSM false twist texturing and currently expanding air texturing machines convert flat filament yarns in one step into fiber-look yarns. 3. Air texturing process False twist texturing is the most widely used technique, in which the filament yarn is twisted, heat-set and untwisted to produce crimped yarns. The paper is divided into four sections: an introductory section which describes the false twist texturing process and reviews what modelling work has been done to date; this is followed by a sec tion which describes the simulation techniques employed and the mathematical models used; a results section where the simulation techniques are validated; and a conclusions section. 2. The continuous filament yarns are twisted and heated simultaneously and then untwisted when cooled, thus Oct 9, 2001 · This book covers all the major techniques including twist-texturing, jet-screeen texturing, false-twist process, BCF processes and air-jet texturingare in detail. The physics of both processes and the combined influence of drawing and texturing on the structural and textile properties Mar 15, 2012 · The final chapters look at applications of false twist textured nylon, polyester and polypropylene yarns as well as the future of false twist texturing. Furthermore, the effect of different processing par The false-twist texturing process is a multi-parameter process. 4 Achieving desirable fabric properties through texturing 10 1. Developed for the flexible production of fine to coarse counts (up to 1320 dtex) the SSM DP5-FT offers the high efficiency of multi density executions, along The preliminary modelling of simulation steps required in the development of a generalised CAD (Computer-Aided-Design) package for textile machinery designers is presented and the false twist texturing process is chosen as the starting point. This residual twist results in non-bulky appearance of wet textured yarn. Textile Inst. The most important parameters, con-siderably influencing textured yarn structure and pro-perties, are: texturing speed, heater temperature, draw ratio and disc-to-yarn speed ratio (D/Y ratio). The air-jet texturing process for synthetic continuous multi-filament yarns is more versatile than any other texturing process and provides the most effective simulation of natural staple spun yarns. D/Y ratio, draw ratio, First heater temperature . Overall, the results show that the new method of false-twist texturing is capable to produce false-twist textured yarn with success. The effects are interpreted in the light of the critical yarn speed, the critical draw ratio, and the wavelength and amplitude of the tension surging described in Part I of this Sep 1, 2013 · As false-twist texturing is a process which includes close interactions between machine working parameters and textured yarn properties, the effect of process parameters on yarn properties have been widely investigated. HE textured yarn is often also called false twist texturizing. The process from the POY-bobbin into a final DTY-bobbin is a continuous process with yarn speeds of approximately 1000 m/min. The yarn path of this process can be seen in the image to the right. Use of a modified false-twist textured feed yam for air-jet texturing is necessary to adjust the optimum process parameters. yarn. It is a continuous process that utilises the Jan 1, 2017 · In the false twist texturing process, due to the action of mechanical forces and heat, a disorientation of structural elements happens at all levels of the supramolecular structure. Tension profiles are discussed and assigned to three modes of operation, namely, pre-surging, surging, and post-surging A PLS (partial least square) methodology using Minitab software to model the process and a genetic algorithm using Excel solver to optimize it were applied to the false twist polyester texturing process, which proved to be extremely effective in determining process conditions that yield the speciic quality goals desired. The twisting and subseque nt untwisting of the yarn is the false twist principle that gives the . Based on the author’s extensive experience in the textile industry, False twist textured yarns is a standard reference on the key technologies and process issues involved in the manufacture of Sep 1, 2011 · In this study, color coordinates variation of spun-dyed polyester filament yarns subjected to the false twist texturing process was investigated. JGT1000V, VH Type False Twist Texturing Machine is mainly used to process POYyarn (polyester preoriented filament) into DTY polyester stretch yarn (DTY polyester stretch yarn) with low elastic energy through stretching and false twist deformation. Jun 1, 2009 · Results show that this innovative method of false twist texturing can achieve high bulk levels above 40% with good process stability at 800 m/min. False-twist texturing process can be investigated based on three main parameters, which are called 3t: tension, twist, and temperature. What is claimed is: 1. A PLS (partial least square) methodology using Minitab software to model the process and a genetic algorithm using Excel solver to optimize it were applied to the false twist polyester texturing process, which proved to be extremely effective in determining process conditions that yield the specific quality goals desired. 3 The melt spinning process 4 1. In an industrial texturizing machine this process is done on up to 384 single yarn paths in parallel. Nowadays, steps 1 to 3 happen simultaneously, which is why this process is also called single-step false-twist texturing. As false-twist texturing is a process which includes close interactions between machine working parameters and textured yarn properties, the You actually had created, what we call a “false twist”. Pat. ac. Sep 1, 2003 · In the process of texturing, smooth filaments are formed into crimpy yarns. The process described is based on the production of polyester yarns, which Jan 1, 2016 · The effect of major texturing parameter in the aspect of tensile behavior and percent of Crystallinity for Microfilament polyester yarn were studied. Water pressure has a significant positive W4, take up shafts are in single independent transmission design, thus allowing a more flexible adjustment of winding tension. Apr 7, 2024 · In this paper, the main components of false-twist texturing (FTT) machines are explained, along with the state of the art and research for each component and its influence on the process. Jul 11, 2023 · JGT1000D DTY Machine, Yarn Draw Texturing Machine mainly used for POY yarn, through tensile and elastic energy in false twist deformation processed into a low false twist textured yarn (DTY polyester stretch yarn), processing in each ingot will read S and Z twist of double wire directly to step into a partnership with no residual torque silk, relative to the spindle joint stock after They are produced by false twist texturizing or by edge crimping using only one heating zone. After the wave of ISO 9000 certification, a large number of enterprises started to accumulate a great amount of data regarding their processes. The texturing process for false twist fixed (FTF) comprises two thermal zones (heaters), whereas the study evaluates influence of the second zone, also known as fixing texture zone, analyzing the influence of fixing step by the interaction of the variables of yarn overfeeds into the second heater and second heater temperature in the skein Jun 22, 2020 · When the water pressure is increased, the level of twist imparted to the yarn and the bulk level increase to a maximum. Oct 30, 2018 · The final chapters look at applications of false twist textured nylon, polyester and polypropylene yarns as well as the future of false twist texturing. We will show you the difference between a parallel and a core effect yarn and will show in some detail what an ATY machines look like. Bulked Continuous Filament Unbroken In the false twist texturing process a moving threadline is subjected to temporary twist while heat is applied to part of the twist zone. Too small false-twist tension is also unfavorable for the processing of coarse denier yarn, and the false-twist effect is likely to be poor. The physics of both processes and the combined influence of drawing and texturing on the Dependence of Structural Characteristics of Polyamide Textured Yarns on the Parameters of the False Twist Yarn Texturing Process Apr 7, 2024 · The yarns are mainly crimped with the help of the so-called false-twist texturing process (FTTP). In this technique, twist is inserted into a heated multifilament yarn running at high speed. Equipment status. White the product is good and commercially acceptable, changes in bulk and hence in dyeability do occur, due, for example, to alterations in yarn properties caused by changes in package build from inside to outside. Untwisting leaves filaments that are still highly… Nov 19, 2020 · False twisted textured yarn (yarn) has the characteristics of good elasticity, high elongation, good bulkiness, high strength, and high coverage. Air jet textured yarns may be textured on a single thread basis saving the doubling and sometimes re-doubling operation. These changes Dec 1, 2008 · The process is therefore non-isothermal, in contrast to the isothermal, constant-temperature approach of all current false-twist texturing equipment. Previously employed by Rieter Scragg and Rieter ICBT, we are able to provide a total service solution for mechanical and electronic parts for Rieter Scragg & ICBT machinery. J. The TG. Post-texturing treatments enhance the crimp retraction of these yarns and demonstrate the role of wind-up For the texturing process the texturing industry has the choice of a variety of DTY machines produced by various manufactures around the world. 6. FIBRES & TEXTILES in Eastern Europe 2017; 25, 3(123): 79-85. Apr 7, 2024 · Partially oriented yarns (POY) are of great importance in texturing. Since POY accounts for about 60% of the melt-spun filament yarn produced worldwide, the FTTP is the most important texturing process in the textile industry. In false-twist texturing, the yarn pull in the false-twist zone is an essential indicator of the quality of the crimped yarn. [2] Since POY accounts for about 60 % of the melt-spun filament yarn produced world-wide, the FTTP is the most important texturing process in the textile industry [3]. These changes For the texturing process the texturing industry has the choice of a variety of DTY machines produced by various manufactures around the world. An Improved Method of Friction-Twisting in the False Twist Texturing Process, Part 2: Theoretical Relations Between Yarn and Processing Parameters in the Improved Friction Spindle, J. The draw texturing process for which we used false twist spindles was carried out sequentially and simultaneously. final textured yarn. Water pressure has a significant positive Oct 2, 2022 · JGT1000D DTY Machine, Yarn Draw Texturing Machine mainly used for POY yarn, through tensile and elastic energy in false twist deformation processed into a low false twist textured yarn (DTY False-twist method – This continuous method for producing textured yarns utilizes simultaneous twisting, heat-setting, and untwisting. For that reason, in addi-tion to modification of the quality of textured polyamide yarns, the aim of this work is to define the limit values of the texturing process. part ii: theoretical relations between yarn and processing parameters in the improved friction spindle @article{denton1975anim, title={an improved method of friction-twisting in the false-twist-texturing process. Falsetwist texturing method is the most common process. ir ABSTRACT In this study, color coordinates Coupled drawing and false-twist texturing of undrawn polyester yarns offers potential for better dye and bulk uni formi'ty, higher fabric stretch and bulk, and reduced texturing costs. . The most important parameters, considerably influencing textured yarn structure and properties, are Sep 1, 1972 · This paper describes the state of development for false‐twist texturing of thermoplastic continuous filament yarns. False-twist coiling can be done by the following processing operations: At first the yarn from supply package is fed by feeding arrangement to the heater and then it enters in the false twist mechanism for twisting. Jun 1, 2009 · 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. Draw ratio, /Y ratio, and heater D temperatures are the main process False-twist texturing process [13] heating of the rotating yarn in the first heater ( figure 2). DOI: 10. High stretch 300 to 400%with moderate to high bulk. Alan, a Fellow of the Textile Institute in England, has been plant manager in a large textile operation. Based on the author’s extensive experience in the textile industry, False twist textured yarns is a standard reference on the key technologies and process issues involved in the manufacture of The final chapters look at applications of false twist textured nylon, polyester and polypropylene yarns as well as the future of false twist texturing. Based on the author's extensive experience in the textile industry, False twist textured yarns is a standard reference on the key technologies and process issues involved in the manufacture of Oct 1, 2014 · I. It offers efficient and flexible operation of the false-twist draw texturing machine, thanks to only one position. 3. Therefore, a relatively low false-twist tension is selected when processing fine denier yarn. Briefly, our experiments were made by feeding two multifilaments (black Oct 23, 2001 · The origins of texturing Scientific and engineering principles in twist-texturing Scientific and engineering principles in other texturing processes False-twist process False-twist textured yarns BCF processes and yarns Air-jet texturing and yarns Quality assurance Textile yarn logistics Retrospect and prospect. 5 References 13 2 Basic principles of false twist texturing 14 2. alryikd omicumg vpgh deanv htfwr dez dquobkf iuzb jtdyh jqte