Chapter 2: Fiber Classification - Natural Fibers
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Questions and Answers

What are the 4 chemical classifications of fibers?

  • Synthetic (correct)
  • Mineral (correct)
  • Cellulose (correct)
  • Protein (correct)
  • What are cellulose fibers?

    Fibers that come from a plant, such as cotton.

    What are protein fibers?

    Fibers that come from an animal, such as wool.

    What are mineral fibers?

    <p>Fibers that come from minerals, such as glass.</p> Signup and view all the answers

    What are synthetic fibers?

    <p>Purely chemical fibers, such as nylon.</p> Signup and view all the answers

    How does cotton react to contact with water?

    <p>It's hydrophilic (absorbs water); 30% stronger when wet.</p> Signup and view all the answers

    What are 3 main advantages of cotton fiber?

    <p>Absorbency, Breathability, and soft hand.</p> Signup and view all the answers

    What fabric has been considered the 'fabric of our lives' for more than 7,000 years?

    <p>Cotton.</p> Signup and view all the answers

    Are cotton fibers staple or filament in length?

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

    What percentage of the world's fiber consumption does cotton make up?

    <p>About 31%.</p> Signup and view all the answers

    What 3 countries are major producers of cotton?

    <p>India, China, United States.</p> Signup and view all the answers

    What part of the plant does the cotton fiber come from?

    <p>It comes from the boll or seed of the plant.</p> Signup and view all the answers

    What is the highest grade of cotton?

    <p>White cotton.</p> Signup and view all the answers

    What does 'cleanliness' refer to when talking about cotton?

    <p>The amount of leaves/stems ('trash') left in the fiber.</p> Signup and view all the answers

    What are some examples of better quality cottons?

    <p>Sea Island, Pima, Egyptian, Supima.</p> Signup and view all the answers

    How do cottons such as Sea Island, Pima, Egyptian, and Supima differ in quality from regular Upland or Alcala cotton?

    <p>They are silkier, stronger, and more lustrous due to longer staple fibers.</p> Signup and view all the answers

    What is colorgrown cotton?

    <p>Cotton that is grown in various colors--no need to dye it.</p> Signup and view all the answers

    What is organic cotton?

    <p>The fiber is grown with a low environmental impact, no toxic fertilizers and pesticides used.</p> Signup and view all the answers

    What is a bast fiber?

    Signup and view all the answers

    Study Notes

    Fiber Classifications

    • Four chemical classifications of fibers: cellulose, protein, mineral, synthetic.

    Natural Fibers

    • Cellulose fibers: Plant-derived fibers; example includes cotton.
    • Protein fibers: Animal-derived fibers; example includes wool.
    • Mineral fibers: Sourced from minerals; example includes glass.

    Synthetic Fibers

    • Created through chemical processes; example includes nylon.

    Cotton Characteristics

    • Cotton is hydrophilic, meaning it absorbs water and becomes 30% stronger when wet.
    • Main advantages of cotton fiber are absorbency, breathability, and a soft feel.
    • Considered the "fabric of our lives" for over 7,000 years, highlighting its historical significance.
    • Cotton fibers are classified as staple fibers, meaning they are relatively short.
    • Approximately 31% of the world's fiber consumption consists of cotton.

    Cotton Production

    • Major cotton-producing countries include India, China, and the United States.
    • Cotton fibers originate from the boll or seed of the cotton plant.

    Quality of Cotton

    • The highest grade of cotton is white cotton, known for its purity.
    • "Cleanliness" in cotton refers to the amount of leaves and stems left in the fiber, affecting its quality.
    • Examples of high-quality cottons with longer staple fibers include Sea Island, Pima, Egyptian, and Supima.
    • Higher quality cottons such as Sea Island and Pima are silkier, stronger, and more lustrous compared to regular Upland or Alcala cotton.

    Special Types of Cotton

    • Colorgrown cotton: Naturally grown in various colors, eliminating the need for dyeing.
    • Organic cotton: Cultivated with minimal environmental impact, avoiding toxic fertilizers and pesticides.

    Bast Fibers

    • Definition pending to elaborate on plant fibers obtained from specific plants.

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    Description

    Explore the chemical classifications of fibers with this set of flashcards. Learn about cellulose, protein, and mineral fibers, as well as their natural sources. Perfect for students studying fiber technology or design.

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