Question

Explain the following techniques of extracting wool briefly.
a. Scouring
b. Combing
C. Shearing
d. Sorting​

Answer 1

Answer:

From sheep

Sheep hair has two types of fibers – the beard hair and the skin hair. The skin hair provides the fiber to make wool. The process of making fiber into wool follows a series of processes:

Shearing → Scouring → Sorting → Dyeing → Straightening, Rolling and Combing

Shearing

This is the first step of processing fiber into wool. In this method, the fleece of the sheep along with a thin layer of skin is removed. This process is done in spring weather as sheep do not require the outer skin to keep them warm. Shearing is mostly done by machines or sometimes by hands.

Scouring

After the shearing process, the sheared hair is washed in big tanks to remove grease, dust, and dirt by automatic machines. This process of washing sheared hair is known as scouring.

Sorting

In sorting, hairs of different textures and types are sorted. Now we can differentiate between low and good quality fibers. The good quality fibers are used for clothes and the lower quality is used for making rugs. The fleece is sorted according to type and texture.

Dyeing

This process involves coloring of fibers in different colors as the natural fiber is generally white, black or brown in color.

Straightening, Rolling, and Combing

After the dyeing process, the fibers are straightened, rolled and combed into yarns. Wool made from fibers are further used for making sweaters, woolen clothes, etc.

Answer 2

Hey friend , here is your answer

hope it helps you.

a)  Scouring is a process by which natural ( oil , fat , gum , wax ) as well as added impurities are removed completely as possible. Especially hydrophobic character which is present in the fiber of fabric , is removed by this process.

b) Combing is a method for preparing carded fiber for spinning.The process of combing is accompanied by gilling , a process of evening out carded or combed top making it suitable for spinning.Combing separates out short fibers by means of a rotating ring.

c) shearing also known as die cutting. It is a process which cuts stock without the formation chips or the use of burning or melting. Strictly speaking if the cutting blades are straight the process is called " Shearing" .If the cutting blades are curved then the process is called " Shearing type operations".

d) sorting is a process of arranging items systematically , and has 2 common yet distinct meanings :

ordering : arranging items in a sequence ordered by some criterion .

categorizing : grouping items with similar properties.

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