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US 10,648,104 B2Granted
System and method for forming nonwoven nanofiber material
OwnerKeiko Muto, Mayuki Yanagawainventors
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Abstract
A system and method for forming non-woven fibers includes an extruder for melting a substance, a nozzle on an end of the extruder for outputting the melted substance, and a gas source in fluid communication with the nozzle. The nozzle may be configured to output the substance in a melted form at atmospheric pressure proximate an output of the gas source. The system may be configured to output a gas stream at lower temperature.
Claims7
A method of forming non-woven fibers, comprising:
- melting a substance in an extruder;
- dispensing the melted substance through a first aperture in a nozzle on an end of the extruder at atmospheric pressure;
- outputting a gas stream through a second aperture in the nozzle proximate the melted substance, the gas stream outputted having a temperature between 20 and 60° C.;
- contacting the gas stream to the melted substance, wherein the gas stream contacts the melted substance without pre-heating the gas stream;
- and
- generating from the melted substance through the gas stream non-woven fibers of diameters between 1 nanometer and 1 micron by flowing the melted substance on the nozzle between the first aperture and the second aperture such that the melted substance is supplied to the gas stream under a force of gravity only.
3 more elements
Dependencies are inferred from the claim text.