Question

Willowing machine is required in the processing of

• A. Cotton
• B. Wool
• C. Sisal
• D. Coir

Hint:

Willowing is always associated with the initial opening and cleaning stages of cotton processing.

Answer 1

The Correct Option is A

Step 1: Understanding willowing.
Willowing is an opening and cleaning process used to loosen fibre tufts and remove loose impurities such as dust, leaf particles, and trash.
Step 2: Role in fibre processing.
In cotton processing, willowing is one of the earliest operations in the blow room line. It prepares cotton fibres for further cleaning and opening.
Step 3: Analysis of other fibres.
Wool uses scouring and carding, sisal uses decortication, and coir uses retting and defibering, not willowing.
Step 4: Conclusion.
Therefore, willowing machines are used in cotton processing.

Answer 2

Willowing is an opening-and-cleaning operation, so identifying the fibre it belongs to means matching it against the standard early-stage processing route used for each of these four fibres.

1. Cotton: Raw cotton arrives baled and compressed with trash mixed in, so the very first blow-room operations open up the tufts and shake out loose impurities before carding; willowing machines are used in exactly this opening-and-cleaning role in cotton processing.
2. Wool: Raw wool's early processing route is scouring (washing out grease and dirt) followed by carding, not willowing; the impurities in wool are removed chemically and by washing rather than by an opening machine of this kind.
3. Sisal: Sisal fibre is separated from the leaf by decortication, and its early processing centres on that mechanical scraping step rather than on willowing.
4. Coir: Coir is separated from the coconut husk mainly by retting and defibering, again a different route from cotton's opening-and-cleaning line.

Only cotton's standard processing sequence includes willowing as an early opening and trash-removal step.

Therefore, the correct answer is Cotton.