; see. When POY is fed into the machine, the yarn has to be drawn. There are small wool fibers with different lengths around the yarn. Where is the difference between ATY Yarn and DTY Yarn ? 5. Should the yarn break, the twisted yarn on the left hand side also goes to waste. “Acelon Chemicals & Fibre Corporation”, http://www.allproducts.com/textile/acelon/12-split_micro_filament.html. will be seen in the yarn as it runs into the twisting device, but no Twist? The material of high elastic yarn is generally nylon and polypropylene, etc, and low elastic yarn is generally nylon and polyester, etc. When the POY is drawn and Twisted at the same time, the end product obtained is a draw textured yarn. texturing gives CF yarns a more natural feel bulk and stretch, their uniform geometry lacks the natural appearance of staple-spun yarns. This is an assembly of overlapping discs which enables the CF yarn to be directly friction twisted, replacing the need for the hollow spindle. There are basically 2 types of yarns which can be produced with air texturing. Air-jet textured yarns produced at const. The elasticity can be obviously felt when pulling the two ends of the high elastic yarn. The flat CF yarn passes down the tube and around the pin. Figure 3 shows that loop density of steam-jet textured yarns increases and air-jet textured yarn decreases when effect-yarn draw ratio is increased. will remain in the yarn, since the Z-Twist? Viewed from B, along the length BX, it will appear to turning counter clockwise. 3.       http://composite.about.com/library/glossary/c/bldef-c1269.htm  Jan 2012, 4. 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. Free listing for companies. 10. A continuous filament yarn that has been processed to introduce durable crimps, coils, … Abhay Jain. 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 R. L; Pieters, R; and Morrison M. E; “Fundamentals of False-Twist? Fig. After spinning and drawing, a slight intermingling is given to the flat yarn to facilitate the easy post spinning processes[2]. texturing the reader is referred to [70], Fig.4 Illustration of the False Twisting Action, Fig.5 Illustration of False-Twist? The two most popular textured yarn structures are draw-twist texturing and air-jet texturing. inserted; Twist? Usually 18% to 30% overfeed may be applied, depending on end-use requirements; parallel yarns are commonly used cut pile plush fabrics. Dyed yarn: It is formed by dyeing the yarn through a dyeing process, which is first spinning and then dyeing. 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: … Molecular weight and molecular weight distribution currently limit PP-BCF yarns to 900dtex and 3000 m/min. Loop size and loop stability are important factors, especially for finer detex/denier yarns. To describe the basics of the false Twist? is called Z-Twist?. 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. With an axial jet, the compressed air is accelerated to the outlet while dragging the filaments along. 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 … Polyester Textured Filament Yarn (PTY) can be draw textured or air textured yarn. 176 elongation at break, than on breaking force. A ratio > 1, of input to output speed is termed the overfeed. texturing and air-jet texturing, the former being the dominant. and Spun Yarns”, Woven Cloth Construction, pub. Texturing Principle. What's the difference between DTY and FDY ? As Fig 6 illustrates, the pin twister is a hollow spindle with a central pin positioned across the tubular interior. insertion is similarly varied, the textured yarn will have thick and thin places along its length. Robinson, A.T.C and Marks, R.,  Chapter 1, p1, “Yarns and Their Characteristics: Continuous-Filament? 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