WORK SHEET 1
FIBRE TO FABRIC
1. Give definition of the followings:
a) Shearing
b) Sericulture
c) Fibroin
d) Reeling.
2. Name the 7 steps of making wool from fibre.
3. Draw the life cycle of silk moth.
4. What is Pupa?
5. Name the process by which curly wool fibres are straightened.
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Answers
a) the process of cutting wool from sheep is called shearing
b)Sericulture definition, the raising of silk worms for the production of raw silk.
c)an insoluble protein comprising the filaments of the raw silk fiber.
d) Wind something on to a reel by turning the reel.
2) The major steps necessary to process wool from the sheep to the fabric are: shearing, cleaning and scouring, grading and sorting, carding, spinning, weaving, and finishing.
3) see the attachment
4) pupa is the life stage of some insects undergoing transformation between immature and mature stages. Insects that go through a pupal stage are holometabolous: they go through four distinct stages in their life cycle, the stages thereof being egg, larva, pupa, and imago.
5) the process by which curly wool fibres are straightened.
THE PROCESS IS CALLED CARDING.
IN CARDING PROCESS , SELECTED CURLY WOOL FIBRES ARE STRAIGHTENED BY PASSING THROUGH ROLLER.
