Year 11 Revision Tasks

Transcription

1 Year 11 Revision Tasks

2 Choosing Fabrics and Fibres page Watch Fibres DVD and make notes of important points about fibre source, process and properties. 2. Write out the general properties, advantages and disadvantages of o using Natural Fibres, Synthetic Fibres and Regenerated fibres. 3. Give 3 reasons why regenerated fibres are environmentally friendly and sustainable. 4. Synthetic fibres are continually being developed into technical fabrics,, give some examples. 5. Read pages on Fibre Blends and answer the questions in the box. 6. Watch DVD on Yarn Construction, answer questions on the sheet.

3 Weaving p24 Weaving is the process of making cloth, rugs, blankets, and other products by crossing two sets of threads over and under each other. Weavers use threads spun from natural fibres like cotton, silk, and wool and synthetic fibres such as nylon and polyester. But thin, narrow strips of almost any flexible material can be woven. People learned to weave thousands of years ago using natural grasses, leafstalks, palm leaves, and thin strips of wood. Today weaving ranks as a major industry in many countries. Weaving is often completed on high speed looms. But weaving is not limited to cloth and textile products. Weaving plays an important part in the manufacture of screens, metal fences, and rubber tire cord. Craft workers also use varied fibres to weave baskets, hangings and hats. Explain the different types of weave; plain, twill and satin and give types of uses for each. Write an account of the properties of woven fabrics.

4 Non Woven Fabrics Nonwoven fabrics are a sheet or web of fibres bonded together by entangling the fibres mechanically, thermally or chemically. They are not made by weaving or knitting and do not require converting the fibres to yarn. There are 2 main types, Felted (wool) and Bonded (synthetic). Wool Felt can be made by hand or machine and is used for Textile Art, crafts, toys, hats, pool tables and jackets. Bonded Fabrics are made by machine either Dry Laid, Wet Laid or Direct Spun and are used for cheap disposable masks, cloths, table cloths and dressings which can be microencapsulated with anti bacterial agents or nappies can be perfumed. It is also used for interfacing for clothing to stiffen waistbands and collars.

5 Feltmaking and Bonded Fabrics Theory page Why is woollen felt expensive? 2. What are its advantages and what can it be used for? 3. Why is bonded fabric is often used for disposable products? Give some examples. 4. Why is microencapsulation used and what is it used for? 5. What are the main properties of non woven fabrics? 6. Explain how laminated fabrics are used?

6 Knitting Hand and Machine p28 Weft Knitting a single yarn is used to form interlocking loops across the width of fabric, it can be made by hand or machine and can unravel or ladder.( t shirts, sweaters, sportswear, fake fur, knickers, socks) Warp Knitting uses multiple yarns interlocking in a vertical direction, it cannot unravel and does not ladder. (sheets, furnishing fabrics, swimwear, tights) 1. Explain the characteristics of Warp and Weft knit, then answer the questions in the activity box on page 29.

7 Fabric Finishes p30-1 Fabric often goes through a Finishing Process to improve its performance (appearance or properties). 1. Describe the main types of Mechanical and Chemical Finishes and explain the changes made to the fabric. 2. Explain what Biological and Coated finishes are.

8 Textile Technological Developments p 32-3 Watch the DVD on SMART TEXTILES, and answer the worksheet. 1. Explain which conditions can activate a smart fabric and what they can be used for. 2. Using interactive textiles how could cyclists winter socks be made to keep their feet warm, and what power source could be used? 3. Give 3 other examples of interactive textiles. 4. Explain 3 other developments that are meeting a real need for outdoor wear. Find out what are the advantages, disadvantages and uses of Nanotechnology.

9 Dyeing read page 40 Explain the terms Pigment, Mordant, Chemical Dyeing, Natural Dying and the 4 stages that dyeing can be done in Industry. Resist Dyeing- TIE DYE and BATIK Explain the methods and equipment used to produce tie dye and batik designed fabric. What are the advantages and disadvantages of these processes?

10 Fabric Enhancement p 44-5 Explain the advantages and disadvantages of the following processes concerning method, expense, use and after care. Fabric Enhancement Machine Embroidery, appliqué,, quilting, patchwork Manipulation of Fabric Pleating gathers, darts, heat setting, textured effects

11 Components page Components are everything that goes into a Textile Product apart from Fabric. Fastenings Zips, buttons, Velcro, hooks and eyes, press studs, toggles, draw string, eye lets and lacing. Textile Components Sewing threads, beads, sequins, ribbons, cord, binding, interfacing, badges, motifs, pads, LED bulbs, boning, elastic, wadding Read the information and suggest what concerns a manufacturer would have to consider when selecting components for products.

12 Exam Style Questions p52-3 Answer questions to check your knowledge of: Fibres and Fabrics Fabric Specification, Labelling, Dye, Print Components Use the book to answer the questions and check your score.

13 Production Systems and Planning page Watch Mass Production DVD and fill in the worksheet. One off Production- Individual, exclusive, expensive Batch Production- Teams, adaptable, responsive, less cost Mass Production- Large quantities, production line, cheap 1. Explain the 3 main types of production system, give examples of products made in each system. 2. What is a Sub Assembly? 3. What are the advantages and disadvantages of JIT (Just- in-time) stock control?

14 Construction Techniques p Draw out flow charts to show the stages in the construction and explain the advantages and disadvantages of each process for : 1. Making Seams,, a Flat Seam with neatening, a French Seam and a Flat Fell seam. 2. Shaping Techniques Darts, Pleating and Gathering. 3. Patch Pockets, 4. Zips 5. Buttonholes.

15 Using Machines In Textile Production, Quality Control and CAD-CAM CAM p98-9, 9, 118-9, Watch the CAD-CAM CAM DVD, fill in the worksheet. 2. Read the information and answer the Examination type question 3 on page 128.

16 ISSUES pages Social and Cultural Influences 72-5 Moral Issues 75-7 Recycling Textiles Environmental Issues and Sustainability 82-5 Health and Safety: Consumer Rights 86-7 Health and Safety: Risk Assessments 88-9 Read the information and answer the Examination question number 3 on page 90.