textiles

• What are the categories of textiles covered in the lesson?

  • Natural textiles
  • Synthetic textiles
  • Woven textiles
  • Non-woven textiles
  • Knitted textiles
  • Properties of textiles
• What are natural fibers from plant sources mentioned in the video?

  Cotton and coconut fibers.
• What are natural fibers from animal sources mentioned in the video?

  Silk and wool.
• What is the source of wool fibers?

  Wool fibers come from an animal's fleece.
• What are fibers in the context of textiles?

  Fibers are thread-like elements that can be formed into yarns and fabrics.
• What is the structure of wool fibers?

  Wool is made of protein molecules and produces a short fiber or staple with a crimp.
• How does the structure of wool contribute to its properties?

  The scales on the fiber trap air, creating warmth.
• What are some examples of products made from wool?

  Coats, jumpers, suits, blankets, and carpets.
• What are the advantages of wool?

  Wool is warm, absorbent, breathable, durable, and repels rain.
• What are the disadvantages of wool?


  Wool dries slowly and is susceptible to moth attack.
• What is the source of cotton fibers?

  Cotton fibers come from the fruit of cotton plants.
• How are cotton fibers processed after harvesting?

  The fibers are machine harvested, and waste is removed from the seed pod.
• What is lint in the context of cotton processing?

  Lint is the resulting fiber after waste is removed from the seed pod.
• What are the properties of cotton fibers?

  Cotton fibers are strong, durable, and absorbent.
• What are some examples of products made from cotton?

  Towels, denim, socks, underwear, t-shirts, and beddings.
• What are the advantages of cotton?

  Cotton is cool, absorbent, soft, and can be ironed at higher temperatures.
• What are the disadvantages of cotton?

  Cotton shrinks, burns easily, and dries slowly.
• What are synthetic fibers made from?


  Synthetic fibers are usually made from coal, oil, and other petroleum-based chemicals.
• What are some examples of synthetic fibers?

  Polyester, acrylic, and nylon.
• What is the structure of polyester fibers?

  Polyester fibers are made of simple chemical molecules that form polymers through polymerization.
• What are the advantages of polyester?

  Polyester is strong when wet or dry, dries quickly, and is resistant to abrasion.
• What are the properties of acrylic fibers?

  Acrylic fibers are warm, dry quickly, durable, and crease resistant.
• What is the process of weaving in textiles?

  Weaving turns yarns into fabric on a loom using warp and weft threads.
• What is the arrangement of threads in woven fabrics?

  The arrangement includes vertical threads (warp) held under tension and horizontal threads (weft) looping back.
• What is calico in the context of woven textiles?

  Calico is a simple cotton cloth with a criss-cross pattern formed by warp and weft threads.
• What are the advantages of calico?

  Calico is strong, hard-wearing, hangs well, and is cheap to make.
• What are the disadvantages of calico?

  Calico can be firm and of low quality.
• What are the properties of denim?

  Denim has a diagonal pattern with blue in the warp and white in the weft.
• What are the advantages of denim?

  Denim is hard-wearing, strong, and hangs well.
• What are the disadvantages of denim?

  Denim frays and its thickness makes it hard to use in some applications.
• What are non-woven fibers?

  Non-woven fibers are laid at different angles to form a web joined by felting or bonding.
• What is the process of felting in non-woven textiles?

  Felting involves tangling fibers together when they are wet and heat and pressure are applied.
• What are the advantages of felted wool fabric?

  Felted wool fabric is resistant to chemicals and fire, and does not unravel or fray.
• What are the disadvantages of felted wool fabric?

  Felted wool fabric is expensive, not stretchy, and deforms when wet.
• What are bonded fibers in non-woven textiles?

  Bonded fibers are joined by heat or solvent and do not fray.
• What are the advantages of bonded fibers?

  Bonded fibers are cheap to produce and do not fray.
• What are the disadvantages of bonded fibers?

  Bonded fibers are not very strong and can be weaker when wet.
• What is warp knitted fabric?

  Warp knitted fabric forms vertical loops and can only be produced on a machine.
• What are the advantages of warp knitted fabric?

  Warp knitted fabric is fairly stretchy, retains heat, and does not unravel.
• What is weft knitted fabric?

  Weft knitted fabric is created by a single yarn that interlocks loops across the fabric.