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Manufacturing device and the method of preparing for the nanofibers via electro-blown spinning process

  • US 8,178,029 B2
  • Filed: 09/28/2009
  • Issued: 05/15/2012
  • Est. Priority Date: 03/26/2002
  • Status: Expired due to Fees
First Claim
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1. A method for preparing nanofiber webs comprising:

  • feeding a polymer solution to a spinning nozzle at a discharge rate between about 0.1 to 5 cc/min·

    hole;

    compressively discharging the polymer solution through the spinning nozzle, which is charged with a high voltage, while injecting compressed air through an air nozzle positioned adjacent the lower end of the spinning nozzle to form nanofibers; and

    collecting the nanofibers on a grounded collector under the spinning nozzle in the form of a nanofiber web and wherein the spinning nozzle comprises a capillary tube at its discharge end.

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