The regression equation uses most of the individual hvi measurements, and is. The most common measuring method to characterise the dynamic yarn path in the ring spinning process is to measure the yarn tension, where the yarn path is almost straight. Process control and yarn quality in spinning woodhead. Basic formulas used in spinning process sriyaditha textile. Spinning is the twisting together of drawn out strands of fibers to form yarn, though it is colloquially used to describe the process of drawing out, inserting the twist, and winding onto bobbins. Optimization of ringspinning process parameters using. It is the machine by which yarn is manufactured at required specification for specific purposes. An overview of ring spinning machinering frame textile. For the love of physics walter lewin may 16, 2011 duration. The rieter manual of spinning volume 17 textile study. In this process, two rovings are led in parallel through the drafting system, separated by two specially developed condensers, and drafted separately.
Ring traveller speed in msec spindle speed x ring dia in mm x 3. The ginned cotton purchased from the traders is brought in the form of bales of 165 kgs to 175 kgs and stored in godowns. Metal spinning, also known as spin forming or spinning or metal turning most commonly, is a metalworking process by which a disc or tube of metal is rotated at high speed and formed into an axially symmetric part. The instructor arranges elements, such as those shown under the spinning elements section into a 45 to 60 minute program. Worsted spun yarns differ from the regular woollen yarn in various properties. In this article, we are going to know about the various processes which lead to the formation of worsted spun yarns. Smaller ring sizes enable high spindle speeds to be achieved whilst keeping traveller speed below the maximum. Forfurther explanations about spinning,see also 212. Ren gasamy et al analysis of spinning tension in r ing spinning 441 pin of the probe, the pressure applied by the yarn causes a change in the voltage which is proportional to the yarn tension. After carding action, combing is done for produce finer yarn or high count yarn in english counting system. This process channel does not include mixing process which is done manually and the packing of cones of readymade yarn.
Autoleveler equipments are used in carding and drawing process in textile spinning industry in order to improve nonperiodic and periodic faults occurring. To produce a part, a metal disc is revolved on a specialized lathe, while held against a spinning block, or mandrel, with a follower. In openend and airjet spinning, the roving operation is eliminated. A speed frame speed frame lf4200 series the technological requirements of speed frame are attenuation of the sliver twisting of the drafted strand winding the twisted roving on a bobbin speed frame lf4200 series is incorporated with stateoftheart technology ensuring higher production level. Smith faculty of agriculture, food and environment, and the center for nanoscience and nanotechnology, the hebrew university of jerusalem, p. It follows that dust elimination takes place at all stages of the spinning process as shown in figure.
Depending on the fineness of the fibre, yarn can be spun from the hackled sliver in a wet spinning process between 8 nm and 100 nm. Novel technique for improving yarn quality and reducing. Exploratory and predictive logistic modeling of a ring spinning. The diameter of the sliver is reduced in two steps in roving and ring spinning. Ring spinning is a continuous process, unlike mule spinning which uses an intermittent action.
Simplex machine for spinning process is an industrial machinery used for spinning process of textile technology to transform the drawn sliver into roving. Wet spinning and drawing of human recombinant collagen. Ring spinning frame an overview sciencedirect topics. The metal spinning process is a forming process used to produce circular hollow metal parts. Download the rieter manual of spinning volume 5 download the rieter manual of spinning volume 5 download this bookthe rieter manual of spinning volume 6 download this bookthe rieter manual of spinning volume 7last. Spinning is the process of conversion of textile fibers and filaments into yarns for weaving or knitting into fabrics. There are two classes of spinning process have been developed by people, hand spinning and machine spinning.
It is clear, however, that automated systems give better, more intimate. Ring spinning is a comparatively expensive process because of its slower production speeds and the additional processes roving and winding required for producing ring spun yarns. Ringspun yarns produce high quality and are mainly produced in the fine 60 ne, 10 tex to medium count 30 ne, 20 tex range. The ring frame process parameters selected are spindle speed, traveller mass and twist multiplier.
The coefficient of spinning friction decreased with increasing maximum hertz stress to a minimum value of approximately 0. The spinning triangle is the most troublesome and weakest zone in the yarn formation process in ring spinning as it increases end breakage, fibre loss and yarn hairiness. Tests were conducted in the nasa spinning friction apparatus with sae 52100 steel specimens with ballgroove conformities of infinity ball on a flat, 60, 55, and 51 per cent. The fiber has been engineered specifically for ring spinning.
Optimization of ring frame process parameters for fancy. To your amazement the nose drops further and the downward motion of the left wing gathers. Ring spinning machine ring frame is used in spinning. Quality requirements of the drywet spinning process.
Before industrial revolution occurs, hand spinning method is widely used by people for making yarns. Ring spinning machine in the textile industry is an industrial machinery used for spinning process to convert the roving into very fine yarn and then wind it onto bobbins for storage. In the early 1960s, this was superseded by the ring and traveller, or ring spinning, which, despite other subsequent later inventions, has remained the main commercial method and is now an almost fully automated process of yarn spinning. Spinning process crescent steel and allied products limited. Have you ever looked closely at a spool of cotton thread or the yarn in a wool sweater.
The count range has been seen to be dependent on fibre type. The twist is introduced as for a normal single yarn by means of ring and traveller. The three new compacting devices compacteasy, compactdrum and compactapron are easy to install and remove, enabling simple switching between ring yarn and compact yarn. Comparative analysis of the ring spinning process, both classic. Spinning is the first steps of textile product processing. Spinning process tencel fiber can be spinned in cotton spinning system, wool processing system and many other systems, and the technological process of spinning is short. The ring was a descendant of the arkwright water frame of 1769 and creates yarn in a continuous process. Impact of different stages of spinning process on fibre orientation and properties of ring, rotor and airjet yarns. The change in yarn properties with progressive change in count has also been reported. Ringspinning processing technical bulletin 341104 introduction the sections that follow relate to the processing of 1.
Drawing, in yarn manufacture, process of attenuating the loose assemblage of fibres called sliver q. Reduction in fineness is achieved by drawing of the sliver, whereas the twist of the fiber builds the yarn characteristics like tenacity and breaking elongation. Highspeed gelspinning of ultrahigh molecular weight. In long staple spinning, the process may start with stretchbreak of tow, a continuous rope of synthetic fiber. Spinning basics page 2 of 7 main program now, the main part of the program begins.
To wind up the spun yarn into some convenient package form. Hackling is the preparation of the flax fibres before the spinning process where the scutched flax is hackled or refined using the variable density of hackling pins. The application is userfriendly, simple and intuitive. The one and only reliable spare parts for rieter equipment. The process of making yarns from the textile fiber is called spinning. Lakshmi machine works limited offers the following product in ring spinning system. Rotor spinning vs ring spinning system 06 twisting and winding process work separately in rotor spinning frame. These steps of processing are carried out in the blow room of a spinning mill.
Solution spinning includes wet spinning and dry spinning. Textile spinning process of cotton yarn textile learner. Keeping this in mind, process control and yarn quality in spinning outlines the concepts of raw material selection, control of various process parameters to optimise the process conditions, and analysis and interpretation of various types of test reports to find out the source of fault. The fundamental component used in making textile yarns and fabrics. However, ring spinning is slower than other modern spinning systems and requires more processing steps, including offmachine winding of the yarn into large packages. Generally, after this step the yarn is wound to a cone for knitting or weaving. Pdf impact of different stages of spinning process on.
Textile spinning process ii making of staple yarn and. There have been many development has done in ring spinning machine for the last years but the basic concept remained unchanged. Advanced ceramics for the melt spinning process new dimensions with tribofil and tribosoft mechanical applications division the ceramic experts. The simulation is based on some algorithms created by the authors in previous research and is a convenient tool for professionals to test the manufacturing process before the real production. Ring spinning is a method of spinning fibres, such as cotton, flax or wool, to make a yarn. Pdf engineering techniques of ring spinning researchgate. Introduction to spinning process online clothing study. Combing process is done to upgrade the quality of the raw materials. In end spinning, the compact family opens up new possibilities for the compacting process. To impart sufficient twist to the emerging strand of fibres to from continuous yarn. During the ring spinning process, the rotation of traveller over the ring and the ring rail movement cause the spinning tension to fluctuate periodically. Blow room, carding and draw frame machine operator textiles.
Pdf impact of different stages of spinning process on fibre. The energy cost is around 15 % to 20 % over the production cost and it stands next to raw material cost. Spinning consistency index sci the spinning consistency index sci is a calculation for predicting the overall quality and spinnability of the cotton fibre. Smith faculty of agriculture, food and environment, and the center for nanoscience and nanotechnology, the. Hot spinning conventional spinning processes are typically performed cold, but for thick parts and high strength materials, heating is sometimes applied to reduce the forming forces. Ring frame converts the roving bobbin into the yarn. The operation of ring spinning machine is creeling, drafting, twisting, winding, building and doffing. Thenamethreeroller spinning comesfromthe arrangementof the rollersinthe drafting zone atthe most commonlyusedspinningmachine, the ring spinning frame. Fundamental principles of ring spinning of yarns sciencedirect. The staple fiber such as cotton and wool has to go through a series of processes until reaching the finished product or the yarn package.
Quality requirements of the drywet spinning process analysis of raw materials, solutions andfibers frank wendler, birgit kosan, thomas schulze, frank meister centre of excellence for polysaccharide research, thuringian institute for textile and plastics research, breitscheidstr. Jul 02, 2016 36 process control and yarn quality in spinning 2. The process takes a fiber mass roving, reduces the mass through fiber drafting, inserts twist for strength, and winds the yarn onto a bobbin. In textile mill, electricity consumption is in increasing trend, due to modernised machines and continuous usage of the equipments in inefficient operating parameters. Further, the vibration of different elements of the ring. The aim of this process is to straighten the fibers and reduce the size of the strand. Possibilities, applications and limitations k r salhotra department of textile technology.
The introduction of compact spinning has minimized the negative influence of the spinning triangle in ring spinning. Ring spinning, the widely used yarn formation technique. In the case of polypropylene, since polymerization leads to a solid product, it is separate from the spinning process. Between 1860 and at the end of the nineteenth century were a period of intense development of different types and shapes of ring. Each pair of rollers spins faster than the previous one. The main function of simplex machine is the attenuation of drawn sliver and insert small amount of. There are various types of spinning methods for producing various types of yarn. Impact of different stages of spinning process on fibre. Hence now a days area of focus is towards energy consumption at load end and by optimizing the efficiency of the motor. The ring spinning machine was invented in the year 1828 by the american throp. Different parts and function of ring frame machine. An improvised approach to hot spinning is widely used in industry. In a desperate attempt to avoid disaster, you immediately pull back on the stick. The ring frame developed from the throstle frame, which in its turn was a descendant of arkwrights water frame.
The speed of the traveller is the limiting factor in ring spinning, with a maximum traveller speed of around 45 ms. S uitable hardness roller the same species yarn w ith the same model, the same diameter, the same surface treatment method and the same use cycle should be selected to reduce. Ring spinning process the commonly used, timetested spinning technique, ring spinning is one of oldest machine oriented spinning techniques used for staple fiber spinning. Ring spinning is a system of spinning that uses a ring spinning frame that drafts rovings fibres prepared into loose strands ready for spinning where the fibres have been laid parallel to some extent, twists the yarn, and winds it on the bobbin continuously and simultaneously in one operation. Dec 28, 20 it is mainly the suction units that remove dust in this example 64%, dust removal will be more intensive the smaller the tufts. Fibers are fine substances with a high ratio of length to thickness. Request pdf optimization of ringspinning process parameters using response surface methodology several processes are involved in textile industry for yarn production. The carding process ensures efficient processing and enables us to achieve the highest standards in cotton cleanliness. Analysis on the spinning process and properties of tencel yarn.
Wet spinning and drawing of human recombinant collagen amit yaari, yaelle schilt, carmen tamburu, uri raviv, and oded shoseyov, the robert h. Part 1 measurements of fibre orientation parameters and effect of. In both methods, a viscous solution of polymer is pumped through a filter and then passed through. The ring spinning process splits up into three subprocesses. Simulation of the metal spinning process by multipass. Since each instructor does it differently, spinning programs vary considerably. One electrode of the voltage source is placed into the solution and the other is connected to the collector. Learning open end spinning process textile knowledge and. With the sirospun process, a special spintwisted yarn can be produced directly on the ring spinning machine. Pdf ring frame is the last machine in the production chain of fibre toyarn conversion process. The spinning limit for three different fibres cotton, viscose rayon and polyester on a dref3 friction spinning machine has been investigated. Since before 1900, ring spinning has been and still is the method used to.
Majumdar, in process control in textile manufacturing, 20. India received 12 august 1992 the new spinning technologies such as rotor, air jet and friction spinning have tremendous potential for hi gher productivity. The yarn is coarser, has a greater twist, and is stronger, making it more suitable for warp. Ring spinning machine different parts of ring frame. The roving bobbin taken from roving process is mounted on the ring frame either automatically or manually. Traditionally ring frames could only be used for the coarser counts, but they could be attended by semiskilled labour. Box 12, jerusalem, israel institute of chemistry and the center for nanoscience and. Metal spinning design consideration and parameter of. Ring spinning is slow due to the distance the thread must pass around the ring.
Tencel fiber with good structure and good physical mechanical prop. If a polymer can be melted under reasonable conditions, its conversion to a fibre by melt spinning is preferred over the solution spinning process, mainly as the former does not involve the use of solvents and the problems associated with their use, namely their removal, recovery, the associated environmental concerns and the low spinning speeds. Ring spinning is one of a number of methods for assembling and twisting fibres to form a yarn. A study on energy conservation in textile industry. Combing process objectives and contribution of combing in. Different yarn properties, such as yarn tenacity, breaking. Drawing is the final process that improves quality and impacts the evenness of sliver. If we notice, we will see that the cotton fiber s are converted into carded yarn, combed yarn and rotor yarn. Digital printing of textiles pdf woodhead publishing series in textiles by h. Ring spinning is a method of spinning fibers such as cotton. The heart of the openend process is a rotor see exhibit 3, wherein fibers can be. In ring spinning, the roving is first attenuated by using drawing rollers, then spun and wound around a rotating spindle which in its turn is contained within an independently rotating ring flyer. Even today, ring spinning makes the widest range of yarn counts with the highest strength. This can be simply revealed by untwisting a vortex yarn by hand.
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