FCOS 103 Textile Fibres: Natural Fibres Production and Properties
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Questions and Answers

Which property is common to all cellulosic fibres?

  • Low heat resistance
  • Low resiliency (correct)
  • High elasticity
  • Poor absorbency
  • What distinguishes protein fibres from cellulosic fibres?

  • Resistant to mold
  • Obtained from animals (correct)
  • Derived from plants
  • Contain glucose
  • Why are cellulosic fibres like cotton susceptible to damage by molds and mildew?

  • Resistance to moths
  • High resiliency
  • Good conductor of electricity
  • Low absorbency (correct)
  • What is a key reason why cotton is the most widely used fibre?

    <p>Good absorbency</p> Signup and view all the answers

    In what way do cellulosic fibres differ from protein fibres in terms of flammability?

    <p>Highly flammable</p> Signup and view all the answers

    Why is cotton grown in areas with temperate and hot climates?

    <p>Thrives in specific temperature conditions</p> Signup and view all the answers

    What is the recommended method for drying garments made of wool?

    <p>Air-drying flat</p> Signup and view all the answers

    Why do some dry cleaners apply special finishes to wool garments?

    <p>To provide moth-proofing</p> Signup and view all the answers

    How do specialty wools differ from sheep's wool in terms of texture?

    <p>Specialty wools are smoother and finer</p> Signup and view all the answers

    Why are specialty wools generally limited to luxurious products?

    <p>Their beauty and cost</p> Signup and view all the answers

    Which animal does cashmere fiber come from?

    <p>Goat</p> Signup and view all the answers

    How does the sensitivity to chemicals of cashmere hair compare to wool?

    <p>Cashmere is more sensitive than wool</p> Signup and view all the answers

    What is the average length of wool used for worsted fabrics?

    <p>2.5 inches</p> Signup and view all the answers

    Which material is used in the production of sound system to absorb pressure?

    <p>Felt fabrics</p> Signup and view all the answers

    Which wool property contributes to its bulkiness and warmth?

    <p>Bi-component fibre structure</p> Signup and view all the answers

    Which type of wool is used for specialty and hand-crafted fabrics?

    <p>Long, coarse wool</p> Signup and view all the answers

    What is the recommended treatment for wool fabrics that have been treated to allow washing?

    <p>Lukewarm water, mild detergent and gentle agitation or soaking</p> Signup and view all the answers

    Which type of wool fabric is made directly from wool fibers without spinning into yarns or weaving?

    <p>Felt fabrics</p> Signup and view all the answers

    Which property of cotton makes it smooth when ironed?

    <p>It becomes plastic when wet</p> Signup and view all the answers

    Which type of cotton would have less than 200 twists/inch?

    <p>Short staple cotton</p> Signup and view all the answers

    Which of the following is not an appropriate use of cotton?

    <p>Electrical insulation</p> Signup and view all the answers

    What type of water should be used when washing white cotton?

    <p>Hot water</p> Signup and view all the answers

    What should be done to prevent cotton furnishings from shrinking when washed?

    <p>Dry clean them</p> Signup and view all the answers

    What precaution should be taken when ironing cotton to prevent damage?

    <p>Use a press cloth</p> Signup and view all the answers

    Which process is used to separate fibres from seeds in cotton production?

    <p>Ginning</p> Signup and view all the answers

    What is the primary use of cotton linters in the production process?

    <p>Producing rayon and acetate</p> Signup and view all the answers

    What chemical treatment is used to increase the absorbency, dyeability, strength, and luster of cotton?

    <p>Mercerization</p> Signup and view all the answers

    Which of the following is not a common physical property of cotton?

    <p>Elongation properties</p> Signup and view all the answers

    Which part of the cotton plant does the fibre originate from?

    <p>The pod/boll</p> Signup and view all the answers

    What is the primary purpose of treating cotton with mercerization?

    <p>To enhance the fabric's overall quality</p> Signup and view all the answers

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