Abstract
This chapter focuses on a “melt-spun” cellulosic fiber that was developed through an industry—university cooperative research project. Fiber-formable cellulose is one of the oldest and most familiar apparel materials for humans. However, conventional cellulosic fibers in filamentous forms, such as viscose rayon and acetate rayon, are produced by a solution spinning process that requires conditionally harmful solvents and other reagents. In the present research, the major aim was to design a thermoplastic cellulose derivative and produce filamentous fibers from it using a solvent-free, melt-spinning process. Improved thermal processability of raw cellulose by chemical modification and polymer blending was crucial for successful melt spinning. In relation to the rheological conditioning of the cellulosic composition, we also discuss industrial technical aspects regarding the control of the elongational flow-viscosity and running speed of the filaments in the practical melt-spinning process. Finally, we demonstrate that the melt-spun cellulosic fiber and ensuing textiles exhibit standard properties and distinct functionalities suitable for apparel use. Examples include the facile design of various types of fibers with different cross sections, which are usually not obtained with solution-spun cellulosic fibers.
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Acknowledgements
A part of this research was financially supported by the New Energy and Industrial Technology Development Organization (NEDO) of Japan.
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Aranishi, Y., Nishio, Y. (2017). Cellulosic Fiber Produced by Melt Spinning. In: Blends and Graft Copolymers of Cellulosics. SpringerBriefs in Molecular Science(). Springer, Cham. https://doi.org/10.1007/978-3-319-55321-4_5
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DOI: https://doi.org/10.1007/978-3-319-55321-4_5
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