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. ACTIVITY 10.1 (ii) Fabric is made from yarn by the process of weaving or knitting. 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. Important Questions on Fibre to Fabrics. ↓ The yarns are then used to make fabrics by weaving and knitting. technologies, to form and bond polymers, fibres, filaments, yarns or combination sheets into a flexible, porous structure. • Opening: This is the basic operation in the spinning of yarn from raw fibres. Figure 5 shows the bonding of nonoven fabric. Log in, Concise Mathematics Class 10 ICSE Solutions 2018. You can try making cotton yarn yourself. One such example is given. 3.4 SPINNING COTTON YARN You can try making cotton yar n yourself. The stems rot (the process is called retting) and fibres are separated by hand. • A yarns is a continuous strand made up of a number of fibres which are twisted together 19. ( most properties in synthetic fibres can be controlled to process them into different types of yarns. 36. Weaving / Knitting / making of non wovens Then the yarn is made into fabric. The yarn for the production of woolen loden fabrics is characterized by its bulky and soft appearance. FIBRES Fibres … Improve your learning 1. Flax and jute have fibres on its fruits. Answer: The devices on which weaving of fabrics takes place are called looms. 2. 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. Activity 4 Hold some cotton wool in one hand. Your email address will not be published. There are three basic steps required for fabric production. The fabrics are made from fibres in the following two steps : (i) Fibres are first converted to yarn by the process of spinning. Detailed definitions and manufacturing principles for different types of yarns are provided. To make fabric, we have to first convert the cotton fibres into yarns by which of the following process? Particular emphasis is given to various types of fancy yarns, which are described with suitable diagrams and detailed explanations of their manufacturing methods. Pinch some cotton between the thumb an d forefinger of the other hand. There are varieties of textile fibres derived from various natural and man-made sources. Yarns are the continuous, strands produced from a short and staple fibres. 3. To make fabrics, all these fibres are first converted into yarns. Copyright © 2015 Elsevier Ltd. All rights reserved. 5. Yarns are usually converted into fabrics, either by weaving or knitting. 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. 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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. Bobbin is the wooden or plastic reels on which yarn is wound. 1. This process is known as the spinning of cotton yarns. Answer 2 (b) Question 3. Fragments of cotton fabrics have been found by a… In fact, some nonwoven products are subjected to both textile and p aper industry . For full treatment, see textile: Production of yarn. Making of Fabric, Fibre to Fabric, Class 6. We use cookies to help provide and enhance our service and tailor content and ads. It may have existed in Egypt as early as 12,000 B.C. The stems of harvested plants are bundled and immersed in water for 10 to 15 days. These fibres are converted into yarns to make fabrics (Fig). In the process of spinning, fibres from a mass of cotton (or wool, silk, etc.) 3.1. (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. The yarn was _____to give beautiful colours and then_____to get cotton fabric. 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. 35. https://doi.org/10.1016/B978-1-84569-931-4.00008-8. 37. Fabric are made from yarn by two main processes : 1 Weaving 2 Knitting. Fill in the names of useful items made from jute fibres in Fig. Question 2: Which statement out of the following is incorrect? Other cotton fibres and myself were made into yarn by the process of _____. 81 Science VI Class converted into yarn. A fibre is a fine hair like strand and is the basic unit of textiles from which we make yarns and then the fabric. Raw jute fibres are red in colour. So they are first converted into yarns which are longer, thicker and stronger. There are two types of wool yarn that make different fabrics: woolen and worsted. The first step in creating fabric is yarn production. ScienceDirect ® is a registered trademark of Elsevier B.V. ScienceDirect ® is a registered trademark of Elsevier B.V. 3.1. Match the terms given in Column I with the statements given in Column II. Cotton fibres are converted into several intermediary products before a cotton-containing end-product is produced. Appropriate yarn structures and manufacturing technologies are selected for required applications and properties. The fibres of cotton and wool have many folds and uneven surfaces. Activity 4. 38. 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. This process is also called warping. The chapter describes different types of yarns in terms of their structures, properties and applications. Yarns are woven together to make a fabric. The longer fibres are made into wool for sweaters and the shorter fibres are spun and woven into woollen cloth. Spinning can be done both by hands and by machines. (d) Sufi saint Kabir was a weaver. They are made from both natural and synthetic fibres. Passage - 2 The process of making yam from fibres is called spinning. The former, with a number of filaments of around 275, can be converted into a … That thread which was made of fibres is called yarn. 4. Fiber is the smallest unit of a fabric. Spinning: The process of making yarn from fibre is called spinning. By continuing you agree to the use of cookies. 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. In spinning, fibre from a mass of cotton or wool are drawn out and twisted. 3.1. (i) Leaves of trees (ii) Newspaper (iii) Metal foils 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 brings the tiny fibres together to form a long and twisted thread called ‘yarn’. • Cotton fibres are made from cotton ball. Which of the following materials did people use in ancient times for making clothes? Fibres are thin and small and cannot be made into a fabric directly. • Making yarn from fibre is called spinning. This brings the fibres together to form a yam. The 2 main processes are weaving and knitting. Yarns are made up of a number of fibres twisted together. The cotton fibres are then converted into rope-like loose strands. The stems of harvested plants are bundled and immersed in water for 10 to 15 days. The process of twisting the fibres together into yarn is called spinning and it was one of the first processed to be industrialised. These materials vary in their sizes and texture and form a suitable for knitting, weaving or otherwise intertwining to form textile fabrics. Opening is the process of reducing compressed cotton fibres from a bale into smaller-fibre tufts. • Handlooms or power looms are used in weaving fabrics. Other cotton fibres and myself were made into yarn by the process of _____. Question: What are looms? A brief treatment of yarn follows. The jute plant is normally harvested at flowering stage. fibres. The conventional systems for processing staple fibre into spun yarns are those developed for cotton and wool: opening, carding, drawing, combing, roving and spinning. Hold some cotton wool in one hand. • Jute fibre is obtained from the stem of a jute plant. Pinch some cotton between the thumb and forefinger of the other hand. 3.4 SPINNING COTTON YARN. Solution: (b): In India, jute is mainly grown in West Bengal, Bihar, Assam and Andhra Pradesh. The fleece is sheared from the sheep, scoured, carded, combed and spun into yarn. Fibres are first converted into yarn by the process of spinning. To be made into fabric, wool undergoes several processes. Filaments may be loosely twisted together to form yarns of a specified thickness. are drawn out and twisted. There are two forms of yarn: one with a low amount of fibers and one with a high amount of fibers. Fibres are made from the yarns. Spinning is done in the same way as the wicks are made from cotton wool at homes. Fill in the names of useful items made from jute fibres in Fig. If weaving is used to make the fabric, the warp yarns are assembled onto a beam. This is done by spinning the fibers. We use these yarns to make fabrics. 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. Fibres are thin and small and cannot be made into a fabric directly. (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. These fibres are spun into continuous strands called as yarns, by imparting twist. 1. The yarn is then woven on a loom to create wool fabric. Weft is … Processing of a Fibre into Fabric. The fibres are then further separated in a blending machine; this separates different grades of cotton to be blended, processes and spun into yarn. In weaving 2 sets of yarns are interlaced to from the fabric. All these fibres are first converted into yarns to make fabrics. (c) To make fabric, the fibres are first converted into yarns. The process of arranging two sets of yarns together to make a fabric is called weaving. Hi, I am going to write the primary properties essential for a fibre to be spun in to a yarn. 2. (i) Leaves of trees (ii) Newspaper (iii) Metal foils (iv) Animal skins and furs (a) (i) … The stems rot (the process is called retting) and fibres are separated by hand. The strands are twisted to make yarns. • The process of removing seeds from cotton wool is called ginning. These fibres are converted into yarns to make … 6. Fabric is … The yarn was _____to give beautiful colours and then_____to get cotton fabric. 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