Process of preparing continuous filament composed of nano fiber
First Claim
1. A process of preparing a continuous filament composed ofnano fibers, which comprisesspinning a polymer spinning dope through nozzles onto a collector surface of water or an organic solvent and which has a conductive material disposed below the collector surface of said water or organic solvent,applying a high voltage to said nozzles and said conductive material, andthe nano fibers spun onto the surface of said water or organic solvent are pressed, drawn, dried and wound while being pulled by a rotary roller rotating at a constant linear velocity at a location spaced more than 1 cm from one end of a dropping spot where the spun polymer contacts the collector surface.
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Abstract
The present invention relates to a process of preparing a continuous filament composed of a nano fiber, wherein nano fibers are prepared by spinning a polymer spinning dope in a spinning dope main tank (20) onto the surface of water or organic solvent (4a) of a collector (4), which contains water or inorganic solvent (4a) and has a conductive material (5) with a high voltage applied sunken in the water or organic solvent (4a), through nozzles (2) with a high voltage applied, and the nano fibers are pressed, drawn, dried and wound while being pulled by a rotary roller (6) rotating at a constant linear velocity from the location spaced more than 1 cm from one end of a dropping spot. The present invention can prepare a continuous filament composed of a nano fiber by an electrospinning method and a continuous process.
10 Citations
10 Claims
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1. A process of preparing a continuous filament composed of
nano fibers, which comprises spinning a polymer spinning dope through nozzles onto a collector surface of water or an organic solvent and which has a conductive material disposed below the collector surface of said water or organic solvent, applying a high voltage to said nozzles and said conductive material, and the nano fibers spun onto the surface of said water or organic solvent are pressed, drawn, dried and wound while being pulled by a rotary roller rotating at a constant linear velocity at a location spaced more than 1 cm from one end of a dropping spot where the spun polymer contacts the collector surface.
Specification