Question

_____ type of selvedge is used for heavy industrial fabrics made of thermoplastic fibres.

• A. \( \text{Tucked} \)
• B. \( \text{Leno} \)
• C. \( \text{Tape} \)
• D. \( \text{Fused} \)

Hint:

Fused selvedges are only possible with synthetic fibers. You cannot create a fused selvedge on 100% cotton fabric because cotton burns rather than melts.

Answer 1

The Correct Option is D

Concept: A selvedge is the finished edge of a woven fabric that prevents it from unraveling. While traditional looms create a natural selvedge, modern shuttle-less looms require specialized methods to secure the edges of the weft yarn.

Step 1: Analyze the role of thermoplasticity.
Thermoplastic fibers (like polyester, nylon, or polypropylene) melt when exposed to heat and solidify when cooled. In shuttle-less weaving of industrial fabrics, a heated element or ultrasonic device is used at the edge of the loom.

Step 2: Identify the fused selvedge mechanism.
The Fused selvedge is created by melting the edges of these thermoplastic yarns together. This creates a very flat, strong, and clean edge that is ideal for heavy industrial applications where a bulky traditional selvedge would be problematic.

Step 3: Differentiate from other types.

• Tucked: The weft end is tucked back into the shed.
• Leno: Uses a special binding yarn to lock the weft.
• Tape: Uses a separate adhesive tape.