Question

Given below are two statements, one is labelled as Assertion (A) and other one labelled as Reason (R).
Assertion (A): Cire' is a highly polished finish.
Reason (R): It is achieved by impregnating the fabric with wheat starch under high temperature and pressure.
In light of the above statements, choose the correct answer from the options given below:

• A. Both (A) and (R) are true and (R) is the correct explanation of (A).
• B. Both (A) and (R) are true but (R) is NOT the correct explanation of (A).
• C. (A) is true but (R) is false.
• D. (A) is false but (R) is true.

Hint:

"Ciré" is the French word for "waxed".
This refers to the highly polished, wet look produced by friction calendering on synthetic or resin-treated fabrics.

Answer 1

The Correct Option is C

Step 1: Understanding the Concept:
Calendar finishes are mechanical treatments applied to fabrics using heated rollers to alter their surface appearance and texture.
Ciré is a specialized calendar finish that produces a glossy surface on fabrics.

Step 2: Detailed Explanation:
- Assertion (A): Ciré is a highly polished, glossy, wet-look finish applied to fabrics.
It is produced by passing the fabric through a friction calender, where the heated rollers rotate at different speeds.
This friction polishes the surface of the fabric. Thus, Assertion (A) is true.
- Reason (R): The ciré finish is applied to thermoplastic synthetic fabrics (like nylon or polyester) by slightly melting the surface fibers under high temperature and pressure.
For natural fibers like cotton, it is achieved by treating the fabric with thermoplastic resins or waxes, not wheat starch.
Wheat starch is used for general stiffening and does not produce the permanent, highly water-resistant gloss characteristic of a ciré finish.
Thus, Reason (R) is false.
Therefore, (A) is true but (R) is false.

Step 3: Final Answer:
Assertion (A) is true, and Reason (R) is false, corresponding to option (C).