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Subjects
Science CBSE
Class 7
Fibre to fabric
The different types of fibre and their sources
15.
Dyeing
Exercise condition:
4
m.
1.
What is dyeing?
Wool
Fleece
Silk
Burrs
is dyed in various colours because the natural colour of the
burrs
pupa
moth
fleece
is brown, black or white.
2.
What is rolling?
The
wool
fleece
yarn
burr
is oiled, straightened, twisted, rinsed, and spun into
fleece
yarn
fibre
burr
during this process.
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