Your email address will not be published. Fibres are first converted into yarn by the process of spinning. At spinning mills, cotton fibres are first converted into different types of yarns At fabric mills, yarns are woven or knitted into fabrics At manufacturing factories, fabrics are cut and sewn into … This is done by spinning the fibers. A brief treatment of yarn follows. Question: What are looms? Fill in the names of useful items made from jute fibres in Fig. Yarns are woven together to make a fabric. Bobbin is the wooden or plastic reels on which yarn is wound. The chapter describes different types of yarns in terms of their structures, properties and applications. 3.4 SPINNING COTTON YARN You can try making cotton yar n yourself. The yarn for the production of woolen loden fabrics is characterized by its bulky and soft appearance. Yarns are made up of a number of fibres twisted together. Hi, I am going to write the primary properties essential for a fibre to be spun in to a yarn. You can try making cotton yarn yourself. The 2 main processes are weaving and knitting. So they are first converted into yarns which are longer, thicker and stronger. There are varieties of textile fibres derived from various natural and man-made sources. How is it done? 81 Science VI Class converted into yarn. Spinning is done in the same way as the wicks are made from cotton wool at homes. Yarns are made from both natural and synthetic fibre, in filament or staple form.Filament is fibre of great length, including the natural fibre silk and the synthetic fibres. 3.1. If weaving is used to make the fabric, the warp yarns are assembled onto a beam. The fibres best suited for textile weaving typically measure between 1 to 1 3/4 inches long; the first destination for these fibres is the carding machine. The process of arranging two sets of yarns together to make a fabric is called weaving. (c) To make fabric, the fibres are first converted into yarns. Solution: (b): In India, jute is mainly grown in West Bengal, Bihar, Assam and Andhra Pradesh. Question 2: Which statement out of the following is incorrect? • Opening: This is the basic operation in the spinning of yarn from raw fibres. Which of the following materials did people use in ancient times for making clothes? Match the terms given in Column I with the statements given in Column II. Improve your learning 1. In this process, fibres from a mass of cotton wool are drawn out and twisted. Here, the raw materials that have been harvested and processed are transformed from raw fibers into yarn and threads. The fibres are then further separated in a blending machine; this separates different grades of cotton to be blended, processes and spun into yarn. To make fabric, we have to first convert the cotton fibres into yarns by which of the following process? In case of staple-fibre yarns, manufacturing technologies including ring, rotor, air-jet spinning and Vortex spinning are explained together with the type of yarn structures obtained from the respective technologies and their end-uses. 1. Match the terms given in Column I with the statements given in Column II. fibres. Detailed definitions and manufacturing principles for different types of yarns are provided. 4. Spinning: The process of making yarn from fibre is called spinning. Question 3. Fragments of cotton fabrics have been found by a… The fibres of cotton and wool have many folds and uneven surfaces. Cotton fibres are converted into several intermediary products before a cotton-containing end-product is produced. (d) Sufi saint Kabir was a weaver. Particular emphasis is given to various types of fancy yarns, which are described with suitable diagrams and detailed explanations of their manufacturing methods. So they are first converted into yarns which are longer, thicker and stronger. Making of Fabric, Fibre to Fabric, Class 6. Fabric are made from yarn by two main processes : 1 Weaving 2 Knitting. The longer fibres are made into wool for sweaters and the shorter fibres are spun and woven into woollen cloth. 3.1. 6. We use these yarns to make fabrics. To make fabrics, all these fibres are first converted into yarns. Similarly , there are many other fibres available to us, which can be used to make cloth and we will learn about these in the next section. Fiber is the smallest unit of a fabric. To make fabrics, all these fibres are first converted into yarns. Processing of a Fibre into Fabric. In weaving 2 sets of yarns are interlaced to from the fabric. 3. Filaments may be loosely twisted together to form yarns of a specified thickness. The earliest known samples of yarn and fabric of any kind were found near Robenhausen, Switzerland, where bundles of flax fibers and yarns and fragments of plain-weave linen fabric, were estimated to be about 7,000 years old. Yarns are the continuous, strands produced from a short and staple fibres. These fibres are converted into yarns to make fabrics (Fig). To be made into fabric, wool undergoes several processes. The yarn was _____to give beautiful colours and then_____to get cotton fabric. After many different colours of finest Australian Merino wool fibres have been blended and carded, ring spinning frames twist them into woolen yarns and into the desired fineness. Cotton has also been cultivated and used to make fabrics for at least 7,000 years. Activity 4 Hold some cotton wool in one hand. Yarns are usually converted into fabrics, either by weaving or knitting. Spinning is the process of converting fibres into yarn by twisting the fibre using various machines. 3.1. Answer: The devices on which weaving of fabrics takes place are called looms. ScienceDirect ® is a registered trademark of Elsevier B.V. ScienceDirect ® is a registered trademark of Elsevier B.V. When grouped together in a loose, continuous rope without twist, synthetic filaments are called tow. This process is known as the spinning of cotton yarns. This brings the tiny fibres together to form a long and twisted thread called ‘yarn’. ACTIVITY 10.1 Passage - 2 The process of making yam from fibres is called spinning. These materials vary in their sizes and texture and form a suitable for knitting, weaving or otherwise intertwining to form textile fabrics. (c) Spinning (iii) Yarns are made from these thin strands (d) Ginning (iv) These are spun from fibres and then used to make fabrics (e) Fibre (v) Process of arranging two sets of yarns together to make a fabric (f) Yarn (vi) Process of making yarn from fibres 23. They are made from both natural and synthetic fibres. These fibres are converted into yarns to make … 1. The stems of harvested plants are bundled and immersed in water for 10 to 15 days. One such example is given. (c) To make fabric, the fibres are first converted into yarns. Hold some cotton wool in one hand. The strands are twisted to make yarns. Yarns are made up of a number of fibres twisted together. In the process of spinning, fibres from a mass of cotton (or wool, silk, etc.) Raw jute fibres are red in colour. The yarn is then woven on a loom to create wool fabric. (i) Leaves of trees (ii) Newspaper (iii) Metal foils (a) Use of charkha was popularised by Mahatma Gandhi as a part of the Independence movement (b) In India, jute is mainly grown in Kerala and Punjab (c) To make fabric, the fibres are first converted into yarns (d) Sufi Saint Kabir was a weaver Solution: (b) In India, jute is mainly grown in West Bengal, Bihar and Assam. There are two types of wool yarn that make different fabrics: woolen and worsted. Fibres are thin and small and cannot be made into a fabric directly. Fabric is … All these fibres are first converted into yarns to make fabrics. There are two forms of yarn: one with a low amount of fibers and one with a high amount of fibers. To make fabrics, all these fibres are first converted into yarns. The jute plant is normally harvested at flowering stage. Other cotton fibres and myself were made into yarn by the process of _____. Which of the following materials did people use in ancient times for making clothes? Figure 5 shows the bonding of nonoven fabric. Flax and jute have fibres on its fruits. There are three basic steps required for fabric production. 35. The process of twisting the fibres together into yarn is called spinning and it was one of the first processed to be industrialised. Copyright © 2015 Elsevier Ltd. All rights reserved. (d) Sufi saint Kabir was a weaver. Fibres are made from the yarns. Weaving / Knitting / making of non wovens Then the yarn is made into fabric. (i) Leaves of trees (ii) Newspaper (iii) Metal foils (iv) Animal skins and furs (a) (i) … In fact, some nonwoven products are subjected to both textile and p aper industry . The process of making fabric or cloth by arranging yarns at right angles to them, is called weaving.The process of making a fabric by interlocking loops of single yarn with knitting needles or machines, is called knitting. ↓ The yarns are then used to make fabrics by weaving and knitting. • Handlooms or power looms are used in weaving fabrics. Answer 2 (b) Question 3. ( most properties in synthetic fibres can be controlled to process them into different types of yarns. These fibres are spun into continuous strands called as yarns, by imparting twist. 36. Natural fibers—cotton, flax, silk, and wool—represent the major fibers available to ancient civilizations. Pinch some cotton between the thumb an d forefinger of the other hand. Appropriate yarn structures and manufacturing technologies are selected for required applications and properties. Yarns … Textile - Textile - Conversion to yarn: Because filaments, such as silk and the synthetic fibres, have extreme length, they can be made into yarn without the spinning operation necessary for the shorter staple fibres. This process is also called warping. Log in, Concise Mathematics Class 10 ICSE Solutions 2018. The fabrics are made from fibres in the following two steps : (i) Fibres are first converted to yarn by the process of spinning. Opening is the process of reducing compressed cotton fibres from a bale into smaller-fibre tufts. In the case of synthetic continuous-filament yarns, manufacturing methods including melt spinning, wet spinning, dry spinning and gel spinning techniques are explained and different forms of continuous-filament yarns are dealt with, such as flat yarns, textured yarns, bi-component yarns and split tape or film yarns. Weft is … The stems rot (the process is called retting) and fibres are separated by hand. Other cotton fibres and myself were made into yarn by the process of _____. We use cookies to help provide and enhance our service and tailor content and ads. Spun yarns can contain a single type of fibre, or you can spin various types of fibre together to give you a blend. The stems of harvested plants are bundled and immersed in water for 10 to 15 days. Important Questions on Fibre to Fabrics. We use these yarns to make fabrics. For full treatment, see textile: Production of yarn. One such example is given. • A yarns is a continuous strand made up of a number of fibres which are twisted together 19. Fibres are thin and small and cannot be made into a fabric directly. 2. technologies, to form and bond polymers, fibres, filaments, yarns or combination sheets into a flexible, porous structure. A fibre is a fine hair like strand and is the basic unit of textiles from which we make yarns and then the fabric. https://doi.org/10.1016/B978-1-84569-931-4.00008-8. Activity 4. 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The cotton fibres are then converted into rope-like loose strands. Fill in the names of useful items made from jute fibres in Fig. How is it done? • Making yarn from fibre is called spinning. The stems rot (the process is called retting) and fibres are separated by hand. 37. FIBRES Fibres … It may have existed in Egypt as early as 12,000 B.C. are drawn out and twisted. The fleece is sheared from the sheep, scoured, carded, combed and spun into yarn. • The process of removing seeds from cotton wool is called ginning. In spinning, fibre from a mass of cotton or wool are drawn out and twisted. 39. This brings the fibres together to form a yam. The first step in creating fabric is yarn production. • Cotton fibres are made from cotton ball. The yarn was _____to give beautiful colours and then_____to get cotton fabric. The former, with a number of filaments of around 275, can be converted into a … The conventional systems for processing staple fibre into spun yarns are those developed for cotton and wool: opening, carding, drawing, combing, roving and spinning. Spinning can be done both by hands and by machines. Fill in the names of useful items made from jute fibres in Fig. 3.4 SPINNING COTTON YARN. Pinch some cotton between the thumb and forefinger of the other hand. A bundle of endless stainless steel fibers can be converted to yarns by textile spinning processes. (ii) Fabric is made from yarn by the process of weaving or knitting. By continuing you agree to the use of cookies. Copyright © 2021 Elsevier B.V. or its licensors or contributors. • Jute fibre is obtained from the stem of a jute plant. 38. With the statements given in Column I with the statements given in Column.! ( c ) to make the fabric uneven surfaces two main processes: 1 weaving 2 of! 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