Dry spinning apparatus and process
Abstract
Abstract IN CONVENTIONAL DRY-SPINNING APPARATUS AND PROCEDURE A HOT INERT GAS IS INTRODUCED TO EVAPORATE SPINNING SOLVENT. IN THE PRESENT INVENTION, A PORTION OF THE HOT GAS IS CONSTRAINED TO FLOW THROUGH THE FILAMENTS AS THEY EMERGE FROM THE ANNULAR SPINNERET BY A GAS DEFLECTOR DEVICE LOCATED CONCENTRICALLY INSIDE THE RING OF EMERGING FILAMENTS AND BY A CONDUIT PROVIDED IN THE CENTER OF THE SPINNING HEAD. A VACUUM APPLIED TO THE CONDUIT DRAWS HOT GAS PERPENDICULARLY ACROSS THE EMERGING FILAMENTS NEAR THE EXITFACE OF THE SPINNERET AND THE DEFLECTOR DEVICE AIDS IN DIRECTING THE HOT GAS (NOW ENTRAINED WITH SPINNING SOLVENT) TO THE CONDUIT AND IN PREVENTING FILAMENTS FROM CLOGGING THE CONDUIT. PRODUCTIVITY OF THE SPINNING APPARATUS CAN BE DOUBLED. D R A W I N G
Inventors
- 👤 J Weir
Bibliographic Details
Claims Analysis
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