Animal Fibres Flashcards
Q: What is wool?
A: Wool is the soft, warm, springy hair that grows on sheep. It grows similarly to human hair, composed of small cells that gradually die.
Q: How is wool produced?
A: Wool is produced by shearing the fleece from sheep, either by hand or using electrical shears. The wool is then cleaned, spun into yarn, and woven or knitted into fabric.
Q: From which animal does the best wool come from?
A: The best wool comes from Australian Merino sheep.
Q: Briefly describe the wool that comes from the Australian Merino sheep.
A: The wool from Australian Merino sheep has fine, soft fibers that are tightly crimped, trapping air and making the fabric excellent for retaining body heat.
Q: List 5 properties of wool.
A:Water repellent
Excellent thermal insulation
Highly absorbent
Elastic and springy
Does not burn easily
Q: List 3 disadvantages of wool.
A:Prone to felting if not washed carefully
Weak when wet and can stretch easily
Prone to damage by moths
Q: List uses of wool.
A:Apparel: Coats, jackets, suits, pullovers, waistcoats, winter blouses, dresses
Accessories: Ties, scarves, hats, socks, stockingsHousehold textiles: Blankets, carpets, drapes, furnishings
Industrial textiles: Fire protection clothing, industrial felts
Q: Describe wool.
A: Wool is a natural fiber that is soft, warm, and springy. It is water repellent, highly absorbent, and an excellent insulator. Wool is also elastic and does not burn easily, making it suitable for a variety of uses in apparel, household textiles, and industrial applications.
Question: What is silk?
Answer: Silk is a natural fiber produced by silkworms, particularly the Bombyx mori species, from their cocoons.
Question: How is silk produced?
Silkworms eat mulberry leaves, then produce liquid from their heads to make filaments, which form a cocoon. In farms, the cocoons are placed in hot water to extract the silk thread.
Question: What are the working properties of silk?
Strong even though fine.
Natural resilience and elasticity.Soft and comfortable.
Highly absorbent.Provides thermal insulation (cool and warm).
Non-inflammable, burns with a small flame that self-extinguishes.
Resistant to moths.
Question: List 3 disadvantages of silk. .
Answer:
Sensitive to perspiration, deodorants, and perfumes, which can cause color changes and embrittle the fiber.
Difficult to launder and easily watermarked.
Expensive due to the labor-intensive production process
Question: List uses of silk.
Answer:
Apparel Fabrics: dresses, blouses, lingerie, formal dresses.
Accessories: scarves, gloves, ties, hats, artificial flowers, handbags.
Household Textiles: drapes, carpets, lampshades, bedclothes.
Industrial Textiles: sewing threads, embroidery threads, typewriter ribbons.
Question: Describe silk.
Answer: Silk is a strong, fine, and elastic natural fiber that is soft, absorbent, and provides thermal insulation. It is non-inflammable and moth-resistant but can be sensitive to perspiration and difficult to launder. Silk is used in a variety of applications, including apparel, accessories, household textiles, and industrial textiles.
