Chattopadhyay iit, delhi quality assurance in spinning steps setting of norms. As the sci contains six interrelated properties, good distribution control of all the cotton. Mar 31, 2015 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. In textile industry, the size of yarns is determined by unit of tex, count, worsted, woolen, and denier. Texas food and fiber commission dallas, texas prepared by.
About 44% of these are spinning machines, 4% are nonwoven machines, and 8% are other textile machines. Introduction in the globally competitive textile industry the ability to meet orders in the leadtime specified, i. Staple cotton spinning systems spinning textiles yarn. During the 18th and 19th centuries, as part of the industrial revolution cottonspinning machinery was developed to bring mass production to the cotton industry. The cotton color is natural and is nondyed or unbleached. Process flow chart of carded yarn manufacturing bale. Etsy is the home to thousands of handmade, vintage, and oneofakind products and gifts related to your search. In openend spinning, yarn is produced directly from sliver. Sliver roving internal transportation central sliver plant raw cotton khadi institution 1 khadi institution2 khadi institution3 distributed spinning in. Here we will explain each process in detail using some illustrations. The chapter commences with a discussion of the need for process control in the intermediate machines of a spinning line. Managing cotton, an inevitable challenge to cotton spinning. You wont get much fiber from 5 cotton bolls, barely enough to card.
Being brought up watching my mom hand knitting different kinds of yarns, i always used to be fascinated by the yarns. Basically the diameter of a yarn is determined by how much fiber volume is spun in a given length. There are various types of spinning methods for producing various types of yarn. Tencel fiber with larger fiber volume quality is smooth and fluffy, its moisture regain rate is high but its cohesion is not good, so the carding should choose the new chemical fiber spinning clothing in order to reduce yarn neps and improve cotton web quality 12. The process of making yarns from the textile fiber is called spinning. Cottonspinning machinery refers to machines which process or spin prepared cotton roving into workable yarn or thread. Take a look at these tips for learning to grow and spin cotton. Melt spinning, dry spinning and wet spinning method. The ring spinning machine is used to twist and wind the roving into a special form of bobbin. Process control and yarn quality in spinning woodhead. Cotton ginning technologies selection criteria for optimum.
Contamination control in spinning i biermann uster. Spinning is the twisting together of drawn out strands of fibers to form yarn. The basic requirements and functions of a ringspinning frame are. In an automatic ginning process of cotton, a modern machine is preferable. The seed cotton, when thrown into the hopper, passes through the machine.
It is not only the farmers who mange the cotton, rather it is the whole value chain of cotton from farmers, ginners, merchants, agents, spinning mills, knitting and woven mills, dyeing and finishing mills, readymade garments, brands and retailers, to end customers. Ringspinning processing technical bulletin 341104 introduction the sections that follow relate to the processing of 1. Textile spinning process of cotton yarn textile spinning process of cotton yarn. In this article i shall explain the spinning process for a layman. Yarn countsliver hank yarn count is the numerical expression of yarn, which defines its fineness or coarseness. Control of yarn inventory for a cotton spinning plant. Yarn are used for subsequent processes such as weaving,knitting etc. Cotton fiber is the most common used natural fiber all over the world.
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. Cotton ginning technologies selection criteria for optimum results page 3 of 7 it lies in picking and then moving the cotton fibres between the roller and fixed knife preventing the seeds to pass through. Cotton fibre selection and bale management system 42 3. Drawing pure spinning adopts two combining, clockwise drafting.
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. During the 18th and 19th centuries, as part of the industrial revolution cotton spinning machinery was developed to bring mass production to the cotton industry. Productive enhancement in cotton spinning sector in pakistan. However, the results of the tests show that hairiness of ring spun yarn and wound yarn of three mills b, k and l is very high.
No matter what youre looking for or where you are in the world, our global marketplace of sellers can help you find unique and affordable options. Running of charkha run at a slow speed in the beginning and then raise speed and maintain speed at a convenient level. Ring spinning is the oldest type of fiber spinning still in use. In manufacturing cotton yarns on widely used ring spinning systems, at the exit from the rollers there is always a triangular bundle of fibres without twist, called. This ebook is filled with great tips about spinning cotton from spinners who love working with cotton and know how to get just the results they are looking for. Make a puni from the brown lint or use the lint in any way to spin on your favorite wheel. Process control in ring and rotor spinning sciencedirect. Process control in spinning free download as powerpoint presentation. The combination of accurate laboratory testing data with information from online monitoring of the entire mill production is a huge. If we notice, we will see that the cotton fiber s are converted into carded yarn, combed yarn and rotor yarn.
The fiber has been engineered specifically for ring spinning. Even a few plants can get you started spinning your own cotton. Ring spinning is one of the most common spinning methods in the world. Control of spinning tension on the ring frame is extremely important in controlling yarn characteristics as well as spinning performance. It is a part of the manufacturing process where fiber is converted into yarn, then fabric, which undergoes finishing processes such as bleaching to become textiles. Softwares used in cotton ginning, classing, trading. Staple cotton spinning systems free download as powerpoint presentation. The initial stage of the spinning process involves converting cotton in bales into the cone winding. The lint is removed from the saw teeth by air blasts or rotating brushes, and then compressed into bales weighing approximately 500 pounds. From raw cotton to cotton fabrics toyota industries. From the field, seed cotton moves to nearby gins for separation of lint and seed.
Almost all cotton fibers produced in the world are white. While the machine is working, at each elevation of the. In spinning cotton into thread, how is the diameter. Quality of incoming raw material to the khadi institution process monitoring and control. Even today, ring spinning makes the widest range of yarn counts with the highest strength. Cotton spinning process consists of many stages as shown below, the stages differ depending on the type of the cotton yarn you are producing whether it is a carded cotton yarn or combed cotton one.
If tension is too high or too low, it will cause higher end breakage leading to poor productivity, higher wastage and ultimately making the process uneconomical. Other methods of break spinning use needles and electrostatic forces. Process control in spinning question bank butex textile. Ring spinning system consists of speed frame and ring frame machine, which does the conversion of sliver thick thread into yarn thin thread. Auto cone is the link between the last stages of yarn manufacturing and the first stage of fabric manufacturing. It is a process in which the fibres are converted to yarn. These steps of processing are carried out in the blow room of a spinning mill. 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. The yarn issuing from the drafting rollers passes through a threadguide, round a traveller that is free to rotate around a ring, and then onto a tube or bobbin, which is carried on a spindle, the axis of which passes through a center of the ring. Mar 16, 2010 any source of handspinning supplies can help you. Nov 16, 2010 textile spinning process quality control 1182010 1prepared by tanveer ahmed slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Before cotton arrives at the spinning mill to spin into thread and woven into the fabric, it makes the journey from field to bale.
The rotation of the wheel causes the cotton to be carried. Textile spinning process quality control 1182010 1prepared by tanveer ahmed 2. Textile books free donwload 77140 fabric weight calculation in gsm 551 knitting terms and definition 33909 yarn numbering system 33338 melt spinning, dry spinning and wet spinning method 32186. Different spinning process is applied for cotton spinning. Spinning is the first steps of textile product processing. Brown cotton lint naturally colored cotton for spinning cotton.
Pretty soon youll be spinning your own cotton at home. The woolery has been around for ages and sells cotton bolls. Analysis on the spinning process and properties of tencel yarn. Well as a textile student,i think that i can answer these question. Tencel fiber with good structure and good physical mechanical prop. Ring spinning when looking at a fabric we usually ignore the fact that its made up of very thin yarns arranged in different ways. Scribd is the worlds largest social reading and publishing site. Feb 08, 2017 well as a textile student,i think that i can answer these question. Cotton spinning machinery refers to machines which process or spin prepared cotton roving into workable yarn or thread. The yarn formation zone is the area between the pigtail lappet guide and the front rollers of the drafting system, where yarn tension is referred to as spinning tension, t s. The spinning process spinning is a major part of the textile industry. Before industrial revolution occurs, hand spinning method is widely used by people for making yarns. A study on energy conservation in textile industry. Spinning process crescent steel and allied products limited.
A wide variety of cotton spinning machine options are available to you, such as. Charkha spinning guidelines a work practice related i. Ring spinning elongates the roving as it is passed through rollers. Experimental work materials and methods for this paper purpose were selected two beaches with 24 ne 25 tex yarn spun by both, ring and open end spinning systems from 100% carded cotton and designed for knitwear. These operations facilitate processing and improve fiber quality. The count range has been seen to be dependent on fibre type. They are the perfect size to carry around for portable spinning on your drop spindle. Textile spinning process of cotton yarn textile learner. First stage of spinning involves converting lightly compressed cotton. From raw cotton to cotton fabrics the fabric usually used in the clothes we wear is produced through two processes. Marketing on cotton spinning qualities 1989 final report submitted to.
Textile spinning the process or processes used in the production of single yarns or of fabrics generated directly from polymer. The combination of accurate laboratory testing data with information from online. A proper understanding of the theory of ring spinning is essential for effective control of the process. Quality assurance in spinning steps setting of norms quality of incoming raw material to the khadi institution process monitoring and control. The cotton first goes through dryers to reduce moisture content and then through cleaning equipment to remove foreign matter. Although i do own a spinning wheel, i chose to spin my cotton by hand because there was such a small quantity and because at the moment i need portable projects. These systems, air jet and vortex, use compressed air currents to stabilize the. If you continue browsing the site, you agree to the use of cookies on this website.
The project report includes present market position and expected future demand, market size, statistics, trends, swot analysis and forecasts. The raw material was uzbekistan cotton, with 29 mm average length and base range for micronaire 4. Cotton yarn spinning part i ring spinning uttutextiles. The spinning limit for three different fibres cotton, viscose rayon and polyester on a dref3 friction spinning machine has been investigated. Control the feed as per the requirement of the next machine. Are all stakeholders of the fiber to fabric production doing. There are two classes of spinning process have been developed by people, hand spinning and machine spinning. The process takes a fiber mass roving, reduces the mass through fiber drafting, inserts twist for strength, and winds the yarn onto a bobbin. Yarn hairiness controlled by modified yarn path in cotton. Managing cotton, an inevitable challenge to cotton. Carded yarn is courser than combed yarn but finer than rotor yarn. Jul 02, 2016 44 process control and yarn quality in spinning such control is economically important because cotton cost and related mill qualities, as well as processing efficiencies and associated costs, can be positively affected when cotton is acquired and used with the benefit of hvi data. The cotton is then air conveyed to gin stands where revolving circular saws pull the lint through closely spaced ribs that prevent the seed from passing through.
Thoney2 1department of industrial engineering 2department of textile and apparel, technology and management north carolina state university this research was supported, in part, by the. Report provides a comprehensive analysis from industry covering detailed reporting and evaluates the position of the industry by providing insights to the swot analysis of the industry. A chunk of fiber the size of your thumb can be spun into a short length of fat yarn, or a longer length of fine yarn. A wide variety of cotton spinning machine options are available to you, such as spinning method, automatic, and type. Cotton fibers spin for producing yarn for facilities fabric manufacturing. Ring spinning frames continue to play a role in this country, but openend spinning, with rotors that can spin five to six times as fast as a ring spinning machine, are becoming more widespread. Other spinning systems have also eliminated the need for roving, as well as addressing the key limitation of both ring and openend spinning, which is mechanical twisting. Modernization efforts have brought major changes to the u. The way they are prepared makes spinning cotton a pleasure.
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