Hair and Fibers
Presentation
•
Chemistry
•
6th - 8th Grade
•
Hard
Joseph Anderson
FREE Resource
10 Slides • 0 Questions
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Fibre to fabric
by-CharviJain
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Fibres are classified into 2 groups Natural fibre and Man-made fibre .
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Natural Fibres
Fibres that are produced by plants, animals, and geological processes.
Natural fibers can also be matted into sheets to make paper or felt.
Fibres obtained from plants and animals that can be spun into filament, thread or rope are termed as ‘Natural fibres’. They may be woven, knitted, matted or bonded.
Eg :- Coir ,cotton ,silk ,wool ,etc
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Man-made fibres
Man-made fibres are also known as synthetic fibres . .
Man-made or chemical fibers are fibers whose chemical composition, structure, and properties are significantly modified during the manufacturing process.
Man-made fibers consist of regenerated fibers and synthetic fibers.
Eg :- Nylon ,polyster ,etc
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Wool
Wool is a natural fibre which is obtained from the fur of animals like sheep, goat, yak ,etc . These animals bear two types of hair – coarse hair and fine hair. Fine soft hair is found close to the skins of these animals. The fine soft under the layer of their thick hair is called ‘fleece’. The wool fibre has been in use since the times people used stone knifes for removing the hair coat of sheep .
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Animals which gives wool .
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What are the properties of wool ?
Wool has natural high UV protection .
It is flame retardant .
It is bio-degradable .
It is breathable .
It is non-allergenic .
It is durable and elastic .
Modern wool can be machine washed it is also easy to spun .
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Do you know
Wool products also use less energy than man-made fibres during manufracture .
Shatoosh is the king of wools
It is the undercoat of the tibetan antelope .
it is considered to be world's finest and warmest wool .
Sheep were domesticated (tamed) in southwestern Asia about 11,000 years ago and now about 1 billion are now widely bred around the world.
Australia is the world's largest producer of raw wool, growing about 30 percent of the total world supply.
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Fibre to fabric
by-CharviJain
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