Table 4.

Comparison of Wet and Air gap spinning.

Wet Spinning	Dry-Wet or Air gap Spinning	Ref.
Advantages: •Useful for the manufacture of large tow sizes and hence higher productivity.	Advantages: •Molecular chain alignment can be improved before coagulation. Hence, better mechanical properties can be achieved. •Spinning dope and coagulation bath temperatures can be different and could be useful to control the diffusion rates in the phase conversion process.	[40, 41, 42, 43]
Disadvantages: •Use of toxic inorganic solvents in the coagulation bath.	Disadvantages: •Cannot be used for producing larger tows. •Use of toxic inorganic solvents in the coagulation bath