High throughput electroblowing process
AssigneeE. I. Du Pont de Nemours and Company
InventorsGregory T. Dee, Joseph Brian Hovanec, Jan Van Meerveld
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Abstract
The present invention is a fiber spinning process comprising the steps of providing a polymer solution, which comprises at least one polymer dissolved in at least one solvent with a vapor pressure of at least about 6 kPa at 25° C., to a spinneret, issuing the polymer solution in combination with a blowing gas in a direction away from at least one spinning nozzle in the spinneret and in the presence of an electric field wherein the polymer solution is discharged through the spinning nozzle at a discharge rate between about 6 to about 100 ml/min/hole, forming fibers, and collecting the fibers on a collector.
Claims19
A fiber spinning process comprising:
- providing a polymer solution, which comprises at least one polymer dissolved in at least one solvent with a vapor pressure of at least about 6 kPa at 25° C., to a spinneret;
- issuing the polymer solution in combination with a blowing gas in a direction away from at least one spinning nozzle in the spinneret and in the presence of an electric field wherein the polymer solution is discharged through the spinning nozzle at a discharge rate between about 6 to about 100 ml/min/hole;
- forming fibers;
- and
- collecting the fibers on a collector.
Dependencies are inferred from the claim text.