Abstract
Investigation of dry spinning was made on the evaporation mechanism of solvent and rheological properties of the filament in the following cases; spinning of cellulose acetate from the acetone solution and polyacrylonitrile from the dimethyl formamide solution.
The results obtained are as follows:
1) The quantity τ of the filament has a great influence upon the maximum draft.
2) In the case of cellulose acetate fiber, the spinning solution with large activation energy for flow has a smaller value of maximum draft and smaller spinnability.
