• Opening: This is the basic operation in the spinning of yarn from raw fibres. Fibres are thin and small and cannot be made into a fabric directly. If weaving is used to make the fabric, the warp yarns are assembled onto a beam. Appropriate yarn structures and manufacturing technologies are selected for required applications and properties. To make fabric, we have to first convert the cotton fibres into yarns by which of the following process? 1. Fill in the names of useful items made from jute fibres in Fig. are drawn out and twisted. Filaments may be loosely twisted together to form yarns of a specified thickness. We use these yarns to make fabrics. (d) Sufi saint Kabir was a weaver. A brief treatment of yarn follows. Passage - 2 The process of making yam from fibres is called spinning. Particular emphasis is given to various types of fancy yarns, which are described with suitable diagrams and detailed explanations of their manufacturing methods. Activity 4 Hold some cotton wool in one hand. By continuing you agree to the use of cookies. In the process of spinning, fibres from a mass of cotton (or wool, silk, etc.) 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. 6. There are varieties of textile fibres derived from various natural and man-made sources. 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. 3.4 SPINNING COTTON YARN. The yarn for the production of woolen loden fabrics is characterized by its bulky and soft appearance. A fibre is a fine hair like strand and is the basic unit of textiles from which we make yarns and then the fabric. These fibres are converted into yarns to make … 3.1. The fabrics are made from fibres in the following two steps : (i) Fibres are first converted to yarn by the process of spinning. It may have existed in Egypt as early as 12,000 B.C. To be made into fabric, wool undergoes several processes. All these fibres are first converted into yarns to make fabrics. The yarn was _____to give beautiful colours and then_____to get cotton fabric. There are two types of wool yarn that make different fabrics: woolen and worsted. The first step in creating fabric is yarn production. The yarn is then woven on a loom to create wool fabric. Yarns are usually converted into fabrics, either by weaving or knitting. The former, with a number of filaments of around 275, can be converted into a … 3. Hi, I am going to write the primary properties essential for a fibre to be spun in to a yarn. Making of Fabric, Fibre to Fabric, Class 6. The stems rot (the process is called retting) and fibres are separated by hand. There are two forms of yarn: one with a low amount of fibers and one with a high amount of fibers. Fiber is the smallest unit of a fabric. In weaving 2 sets of yarns are interlaced to from the fabric. Figure 5 shows the bonding of nonoven fabric. • Handlooms or power looms are used in weaving fabrics. 37. That thread which was made of fibres is called yarn. 39. In spinning, fibre from a mass of cotton or wool are drawn out and twisted. 4. Activity 4. Which of the following materials did people use in ancient times for making clothes? 35. This is done by spinning the fibers. Improve your learning 1. Natural fibers—cotton, flax, silk, and wool—represent the major fibers available to ancient civilizations. Flax and jute have fibres on its fruits. (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. Opening is the process of reducing compressed cotton fibres from a bale into smaller-fibre tufts. So they are first converted into yarns which are longer, thicker and stronger. (d) Sufi saint Kabir was a weaver. Detailed definitions and manufacturing principles for different types of yarns are provided. There are three basic steps required for fabric production. • A yarns is a continuous strand made up of a number of fibres which are twisted together 19. So they are first converted into yarns which are longer, thicker and stronger. https://doi.org/10.1016/B978-1-84569-931-4.00008-8. Processing of a Fibre into Fabric. Spinning is done in the same way as the wicks are made from cotton wool at homes. • Cotton fibres are made from cotton ball. The fibres of cotton and wool have many folds and uneven surfaces. technologies, to form and bond polymers, fibres, filaments, yarns or combination sheets into a flexible, porous structure. The process of twisting the fibres together into yarn is called spinning and it was one of the first processed to be industrialised. 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. The stems of harvested plants are bundled and immersed in water for 10 to 15 days. This process is also called warping. They are made from both natural and synthetic fibres. ScienceDirect ® is a registered trademark of Elsevier B.V. ScienceDirect ® is a registered trademark of Elsevier B.V. One such example is given. How is it done? Bobbin is the wooden or plastic reels on which yarn is wound. The 2 main processes are weaving and knitting. 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 made from the yarns. Fill in the names of useful items made from jute fibres in Fig. 81 Science VI Class converted into yarn. 3.1. Answer 2 (b) Question 3. 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. 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. Copyright © 2021 Elsevier B.V. or its licensors or contributors. When grouped together in a loose, continuous rope without twist, synthetic filaments are called tow. 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