Sen'i Gakkaishi
Online ISSN : 1884-2259
Print ISSN : 0037-9875
Ultra-Fine Fibers Produced by Laser-Electrospinning
Midori TakasakiHao FuKazuhiro NakataYutaka OhkoshiToshihiro Hirai
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2008 Volume 64 Issue 1 Pages 29-31


We used a CO2 laser as a heat source to avoid thermodegradation in the melt-electrospinning process (termed “laser electrospinning” (LES)). Nylon 6, polypropylene, poly (ethylene terephthalate) and poly (L-lactide-co-ε-caprolactone) fiber webs were prepared by the LES. For Nylon 6 and poly (L-lactide-co-ε-caprolactone), fibers having average diameters of approximately 1 μm and a coefficient of variation (CV) of no more than 20% were obtained. The effects of the applied voltage and laser power on the diameter of the PET fibers were investigated. The average diameter of the electrospun PET fibers decreased with a decrease in the applied voltage; however, using an applied voltage that was too low caused thermodegradation. The average diameter decreased with an increase in laser power. Above a certain laser power, however, shot particles and large deviations in the fiber diameter were observed.

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© 2008 The Society of Fiber Science and Technology, Japan
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