Grade 11/12 fashion Fibres/Fabrics Test Review All handouts used in class for test review have been posted in class Moodle 1. Review material from stations that we did in class Wool quiz What do the wool symbols mean? Describe each symbol. Wool 101: advantages and disadvantages of wool Fill in the blanks sheet on linen; word search in linen Spandex in popular cultures Spandex characteristics and major spandex uses History of silk handout (origin‚ silkworm and the family‚ the silk
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← Understand the manufacture of sulphuric acid. ← Synthesise the manufacture of ammonia and its salts. ← Understand alloys. ← Evaluate the uses of synthetic polymer. ← Apply the uses of glass and ceramics. ← Evaluate the uses of composite materials. ← Appreciate various synthetic industrial materiala. (H4SO4) ← USES OF SULPHURIC ACID 1. Sulphuric acid is used to produce chemical fertilizer such as ammonium sulphate and potassium sulphate‚ which are highly soluble in water
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Warmth (comfort) Absorbency (comfort) Comfort (comfort) Handle and drape (aesthetics) Strength (functional) Elasticity (functional) Aftercare (functional) Natural fibres Wool Warm to wear. Slow‚ can absorb its weight in water and not feel wet. Repels water droplets. Very slow drying. Fine wool‚ very comfortable. Coarse wool‚ scratchy. Very soft or coarse handle. Good drape. Medium strength‚ not durable. Very good. Creases drop out. Wash and iron with care‚ may shrink. Dry
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❖ Jute is a long‚ soft‚ shiny vegetable fibre that can be spun into coarse‚ strong threads. It is produced from plants in the genus Corchorus‚ which was once classified with the family Tiliaceae‚ more recently with Malvaceae‚ and has now been reclassified as belonging to the family Sparrmanniaceae. "Jute" is name of the plant or fiber that is use to make burlap‚ Hessian or gunny clothes. ❖ Jute is one of the most affordable natural fibres and is second only to cotton in amount produced
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CERTIFICATE This is to certify that Mr. Thakkar Rohan. Roll No.:- 726109 of B.E. 4th year of Rubber Technology Department semester.- VII has satisfactorily completed his first part of final year project at L.D. College of engineering on topic “GLASS CORD AS A REINFORCEMENT MEDIA FOR EPDM RUBBER PROFILE” Date of Submission: Guided By Head of the Department Prof. R. N. Desai
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------------------------(11-14) h. Arrangement of atom in metals i. What are alloys? j. The arrangement of atoms in alloys 4) Synthetic Polymers------------------------------------------------------(15-17) k. What are polymers? l. Monomers in synthetic polymers m. Should we continue using synthetic polymers? 5) Glass and Ceramic--------------------------------------------------------(18-20) n. Glass o. Ceramics 6) Composite
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industry or apparel industry is primarily concerned with the production of yarn‚ and cloth and the subsequent design or manufacture of clothing and their distribution. The raw material may be natural‚ or synthetic using products of the chemical industry. Cotton is the world’s most important natural fibre. In the year 2007‚ the global yield was 25 million tons from 35 million hectares cultivated in more than 50 countries.[1] There are five stages[2] Cultivating and Harvesting Preparatory Processes
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Section A Multiple choice (17 marks) Do NOT Write on this section of the paper. Answer ALL questions in the table provided at the start of Section B Question 1. Which of the following best describes the structure of metals? A lattice of A. alternating positive and negative ions B. positive ions surrounded by freely moving electrons C. molecules held together by covalent bonds D. atoms held together by covalent bonds Question 2. Which of the following is not a property of most metals
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industrial process in manufacture of ammonia 9.3 Alloys 9.3.1 Physical properties of pure metals 9.3.2 Meaning and purpose of making alloys 9.4 Synthetic polymers 9.4.1 The meaning and types of polymers 9.4.2 Advantages of synthetic polymers 9.4.3 Environmental pollution caused by synthetic polymers 9.4.4 Methods to overcome the environmental pollution caused by synthetic polymers 9.5 Glass and ceramics 9.6 Composite material Conclusion References Page 3 4 5 7 10 11 12 13 14 15 16 17 17 18 18 22 24 25
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|15 | |Composition‚properties and uses of alloys |16 | |(D) Synthetic polymers
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