Question

The process of removal of protruding fibers from the surface of fabric is called as \(\underline{\hspace{2cm}}\)

• A. Singeing
• B. Bleaching
• C. Shearing
• D. Cropping

Hint:

Distinguish between surface finishing processes: - Singeing: Burns away fuzz for a clean surface. - Shearing/Cropping: Cuts fibers to a uniform height. - Brushing/Napping: Raises fibers to create a soft, fuzzy surface.

Answer 1

The Correct Option is A

Step 1: Understand the objective: to remove protruding fibers (fuzz or hairiness) from a fabric surface to make it smooth and clean. 
 

Step 2: Evaluate the given finishing processes. 
- Singeing: This process involves passing the fabric at high speed over a gas flame or a hot plate. The protruding fibers are burned off without damaging the main fabric body. This directly matches the description. 
- Bleaching: A chemical process to remove natural color from fibers and make them white. It does not remove protruding fibers. 
- Shearing/Cropping: These terms are often used interchangeably. This is a mechanical process where the fabric surface is passed under rotating blades, similar to a lawnmower, to cut the protruding fibers to a uniform length. While it deals with surface fibers, it is a cutting process. Singeing is a burning process. Generally, "singeing" is the most common term for removing the fuzz completely for a clean surface, whereas shearing is for creating a pile of uniform height (like in carpets or corduroy) or reducing hairiness mechanically. Given the options, singeing is the primary process for "removal". The term cropping is a synonym for shearing. 

Conclusion: Singeing is the process of burning off protruding surface fibers.