Question

The spun bonded non woven fabrics are mainly manufactured by __________ process.

• A. melt spinning
• B. carded web formation
• C. wet spinning
• D. air laid web formation

Hint:

"Spun-bonded" literally means the fibers are spun and then bonded immediately. If you're spinning from a melt, it's a melt-spinning process.

Answer 1

The Correct Option is A

Concept: Non-woven fabrics are made directly from fibers or polymers without weaving or knitting. Spun-bonding is a specific "integrated" process.

Step 1: Understanding Spun-bonding.
In the spun-bonding process, thermoplastic polymer chips (like Polypropylene or Polyester) are melted and extruded.

Step 2: Identifying the Spinning Method.
The process involves melt spinning the polymer through spinnerets. The resulting continuous filaments are cooled by air, laid onto a moving conveyor belt to form a web, and then bonded (usually thermally) to create the final fabric.

Step 3: Distinguishing from other methods.
Unlike carded or air-laid webs which use pre-existing staple fibers, spun-bonded fabrics are manufactured in one continuous step starting directly from the polymer melt.