Q.35
Fibre produced by dry spinning is
- Manufacture of Synthetic and Regenerated Fibers via Dry Spinning:
- Dry Spinning Process:
- The fiber-forming polymer is dissolved in a volatile organic solvent (e.g., cellulose acetate dissolved in acetone).
- The polymer dope is extruded through spinneret orifices into a vertical spinning tower where a counter-current stream of warm air evaporates the solvent, solidifying continuous filaments.
- Comparison of Spinning Systems:
- Dry spinning: Cellulose Acetate, Spandex, Acrylic.
- Melt spinning: Nylon, Polyester, Polypropylene.
- Wet spinning: Viscose Rayon, Cuprammonium Rayon.
- Conclusion: Acetate (Option 1).
Correct option: (1) Acetate
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