"Synthetic fibres" Essays and Research Papers

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    Nylon 6,6

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    a nylon-bristled toothbrush (1938)‚ followed more famously by women’s stockings ("nylons"; 1940). It is made of repeating units linked by amide bonds and is frequently referred to as polyamide (PA). Nylon was the first commercially successful synthetic polymer. There are two common methods of making nylon for fiber applications. In one approach‚ molecules with an acid (COOH) group on each end are reacted with molecules containing amine (NH2) groups on each end. The resulting nylon is named on

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    Dyeing Fabrics

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    PICRIC ACID (DIRECT DYE): Take about 60 mL of water in a 400 mL beaker. Add 2-3 drops of concentrated sulphuric acid and about 0.5 g of Picric Acid to it. Stir the solution with a wooden stick and warm over a hot water bath. Immerse one piece of each wool‚ cotton‚ polyester‚ nylon and terecot into it. When the pieces are thoroughly wetted in dye solution remove these with the help of forceps. Wash these with the help of warm water till the washing is colourless. Dry the pieces and note the results

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    Fabric Swatch

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    $ 2 5 / m   Si lk       -­‐ -­‐ natural  protein  fibre   protein  fibre  of  silk   is  composed  mainly   of  fibroin  and   produced  by  certain   insect  larvae  to  form   cocoons.   The  shimmering   appearance  of  silk  is   due  to  the  triangular   prism-­‐like  structure   of  the  silk  fibre     -­‐ -­‐ -­‐ versatile  and  very   comfortable  

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    9.1 Manufacture of Sulphuric Acid 1. State uses of sulphuric acid in daily life. - lead acid batteries in automobiles and for home use - extraction of elements from ores - manufacturing of fertilizers  2.The following shows an incomplete flow chart of the Contact process. a) b)Chemical equation A. B. C. D. 3. Briefly explain the sources of sulphuric dioxide gas in atmosphere. -Sulphur dioxide is produced mainly from the combustion of fossil fuels

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    blaaah

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    gfgdgfgfgdgjojiij Article Bibliography Web sites Related Content Recent Edits Contributors Table of Contents Introduction Key sectors of the fashion industry World fashion The fashion system fashion industry‚ multibillion-dollar global enterprise devoted to the business of making and selling clothes. Some observers distinguish between the fashion industry (which makes “high fashion”) and the apparel industry (which makes ordinary clothes

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    interactions between fibre material - solid and chemicals – liquid‚ solutions or emulsions. Essential operations involved in Textile Processing : Maximum penetration of chemicals into fibre material to achieve desired interactions. Thorough removal of unused/unfixed chemicals and impurities from the textile material. Because of the heterogeneity of interaction‚ only limited absorption of various types of chemicals and colorants used for chemical processing onto the textile fibre materials is possible

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    Eco Friendly Products

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    Eco-friendly processing of Jute & Allied Fibres Paper presented to INTERNATIONAL JUTE STUDY GROUP (IJSG) DHAKA‚ BANGLADESH By Dr. S. K. Chakrabarti INDIAN JUTE INDUSTRIES’ RESEARCH ASSOCIATION 17‚ TARATALA ROAD‚ KOLKATA 700088 INDIAN JUTE INDUSTRIES’ RESEARCH ASSOCIATION ECO-FRIENDLY PROCESSING OF JUTE & ALLIED FIBRES Dr. S. K. Chakrabarti Indian Jute Industries’ Research Association (IJIRA) 17 Taratola Road‚ Kolkata- 700088 Abstract: In the present scenario‚ the

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    High Technology Fibers

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    TECHNOLOGY FIBRES FOR TECHNICAL TEXTILES 1 INTRODUCTION Human life is surrounded by hundreds of textile fibres either in the form of clothes‚ interior textiles or in the form of high performance technical textiles made of conventional or high technology fibres for various applications. A textile fibre is usually defined as a flexible‚ macroscopically homogenous cylindrical body mainly with circular cross- section having a high ratio of length to diameter (typically 100-3000: 1). Textile fibres are derived

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    textile

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    3 Textile Organic Dyes – Characteristics‚ Polluting Effects and Separation/Elimination Procedures from Industrial Effluents – A Critical Overview Zaharia Carmen and Suteu Daniela ‘Gheorghe Asachi’ Technical University of Iasi‚ Faculty of Chemical Engineering and Environmental Protection‚ Romania 1. Introduction The residual dyes from different sources (e.g.‚ textile industries‚ paper and pulp industries‚ dye and dye intermediates industries‚ pharmaceutical industries‚ tannery‚ and Kraft

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    Hr Practices

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    INTRODUCTION INTRODUCTION TO THE TOPIC In every organization the HR has a crucial role in building the organizational culture and also moulding the ethical character of the workforce. Through the role of role of HR is evolving and assuming more strategic significance‚ it is still widely recognized as the policing arm of the executive management. The HR has responsibility for all the functions that deal with the need and activities of the employees. Hiring‚ training‚ leadership development‚

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