Effects of Spinning Conditions on Shape Changes of Trilobal-shaped Fibers

Abstract

The effects of spinning conditions on shape changes in the trilobal-shaped fiber spinning of poly(ethylene terephthalate) (PET) and polypropylene (PP) fibers were studied with a focus on spinning parameters such as mass flow rate, spinning temperature and take-up. Extrudate at the die-swell points along the spinline was obtained to investigate shape change. Extrudate shape at the die-swell points affected the shape factor of as-spun PP fibers. Surface tension affected the fiber cross-section of the PET trilobal fibers, whereas die swell was more important in the PP trilobal fibers. The shape factor of the PP trilobal fibers decreased with increasing mass flow rate, spinning temperature and take-up speed, whereas that of the PET trilobal fibers increased with increasing mass flow rate and take-up speed.

Keywords

trilobal-shaped fiber shape factor die swell surface tension

Get full access to this article

View all access options for this article.

References

Washino, Y. , "Functional Fibers", Toray Research Center, 1993.

Hongu, T. , and Phillips, G. , "New Fibers", Ellis Hornwood, New York, 1990.

Kikutani, T. , Radhakrishnan, J. , Arikawa , S. , Takaku, A. , Okui N. , Jin , X. , Niwa, F. , and Kudo, Y. , High-speed Melt Spinning of Bicomponent Fibers: Mechanism of Fiber Structure Development in Poly(ethylene terephthalate)/Polypropylene System, J. Appl. Polym. Sci. 62, 1913-1924 ( 1998).

Matsumoto, T.K. , The Japanese Fiber Industry Seeks Its Future , Textile Res. J. 51, 18-24 (1981).

Nakajima, T. , "Advanced Fiber Spinning Technology", Wood-head, Cambridge, 1994.

Takarada, W. , Ito H. , Kikutani T. , and Okui N. , Studies on High-speed Melt Spinning of Noncircular Cross-section Fibers: III. Modeling of Melt Spinning Process Incorporating Change in Cross-sectional Shape, J. Appl. Polym. Sci. 80, 1589-1600 (2001 ).

Fukuhara, M. , Innovation in Polyester Fibers: From Silk-Like to New Polyester, Tex. Res J. 63, 387-391 ( 1993).

Noh, Y.W. , Kwon, Y.D. , and Kim , S.Y. , Experimental and Theoretical Study of Rectangular Fiber Melt Spinning, Int. Polym. Proc. 12, 366-372 ( 1997).

Oh, T.H. , Lee, M.S. , Shim, H.J. , and Kim , S.Y. , Studies on Melt-Spinning Process of Hollow Fibers, J. Appl. Polym. Sci. 68, 1209-1217 ( 1998).

10.

Kim, H.J. , Chung, K.S. , and Youn, J. , R., Three Dimensional FEM Simulation for Spinning of Non-circular Fibers, Fibers Polym. 1, 37-44 (2001).

11.

Ziabicki, A. , "Fundamentals of Fibre Formation" Wiley Interscience , London, 1976 .

12.

Han, C.D. "Rheology in Polymer Processing", Academic Press, New York, 1976.

13.

Huang, D.C. , and White, J.L. , Extrudate Swell from Slit and Capillary Dies: An Experimental and Theoretical Study, Polym. Eng. Sci . 19, 609-616 (1979).

14.

Karaca, E. , and Ozcelik, F. , Influence of the Cross-Sectional Shape on the Structure and Properties of Polyester Fibers, J. Appl. Polym. Sci. 103, 2615-2621 ( 2007).

15.

Krevelen, D.W. , "Properties of Polymers", Elsevier, Amsterdam, 1990.

16.

Cao, J. , Kikutani, T. , Takaku , A. , and Shimizu, J. , Nonisothermal Orientation-Induced Crystallization in Melt Spinning of Polypropylene, J. Appl. Polym. Sci. 37, 2683-2697 (1989 ).

17.

Shimizu, J. , Okui, N. , and Kikutani, T. , "High-Speed Fiber Spinning", Wiley Interscience , New York, 1985, p 173.