What are burrs in wool- - Biology Q-A

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Standard VI

Chemistry

Natural Fibres

What are burr...

Question

What are burrs in wool?

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Solution

Burrs:
Burrs are delicate, fluffy wool fibres.
The soft, cottony, and ball-structured characteristics sprouting on wool fibres.
To achieve fine and high-quality wool, they must be eliminated.
Burrs are the soft fibres that appear to be soft.

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Q. What is wool?

What are burrs?

Appu thought that when he washed his woolens in water, there would always be tiny ball like burrs coming out on top of the clothes. He wondered how his new woolen sweaters never had any burrs even though the fleeces were washed in water. He mentioned his suspicion to the farmer.

The farmer said “The burrs do appear on the wool. But, they are removed using a process called ____________________”. He showed some hand cards used for the process. It had tiny teeth that could remove burrs. The farmer added “of course…nowadays this is done using machines …”

Q. Various steps involved to obtain wool from fleece are given here: (i) Picking out the burrs, (ii) Dyeing in various colours, (iii) Shearing, (iv) Scouring (v) Sorting
Write the above steps in the correct sequence in which they are carried out.

Identify the reason why low-quality wool was obtained from a wool production unit that follows the following steps.

Step 1: Washing and combing of fleece to obtain fibres.
Step 2: Removing burrs from the fibres.
Step 3: Converting fibres into yarns.
Step 4: Dyeing.

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What are burrs in wool?

Burrs:Burrs are delicate, fluffy wool fibres. The soft, cottony, and ball-structured characteristics sprouting on wool fibres. To achieve fine and high-quality wool, they must be eliminated. Burrs are the soft fibres that appear to be soft.

Burrs:
Burrs are delicate, fluffy wool fibres.
The soft, cottony, and ball-structured characteristics sprouting on wool fibres.
To achieve fine and high-quality wool, they must be eliminated.
Burrs are the soft fibres that appear to be soft.