Question

Which of the following Mechanical finishings is adopted to improve the lusture of bonded fabric?

• A. Creping
• B. Polishing
• C. Raising
• D. Emerising

Hint:

Polishing (or calendering) increases luster by smoothing the fabric surface. Raising, emerising, and creping decrease luster by creating a textured surface.

Answer 1

The Correct Option is B

Step 1: Understanding Mechanical Finishing Processes: Mechanical finishing processes modify the fabric surface without the use of chemicals. 

Step 2: Analyzing the Options:
 Creping: Creping creates a crinkled or puckered surface texture. It reduces luster. 
Polishing (Calendering): Polishing, often done using calendering, involves passing the fabric between heated, smooth rollers under high pressure. This flattens the fibers and yarns, increasing the surface smoothness and, consequently, the luster (shine). 
Raising: Raising uses wire-covered rollers to lift fibers from the fabric surface, creating a fuzzy, napped texture. This reduces luster. 
Emerising (Sanding/Sueding): Emerising uses abrasive rollers to create a soft, peach-fuzz-like surface. It reduces luster.