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(a)                                                         (b)

                                   Figure 2.10    (a) Corchorus Olitorius, (b) Jute fibre



                           Table  2.8  shows  the  properties  of  jute  fibre.  However,  jute  fibres  do  have

                   disadvantages  such  as  high  moisture  absorption,  intrinsic  polarity,  low  thermal
                   resistance,  anisotropic  fibre  resistance,  variability,  poor  drapability,  yellowing  in

                   sunlight and brittleness.




                   Table 2.8      Properties of jute fibre

                                                        Elongation     Tensile       Young’s
                     Fibre                  Density       at break     strength      modulus     Ref
                                                  3
                                             (g/cm )
                                                           (%)          (MPa)         (GPa)
                     Jute                      1.3       1.5 – 1.8    393 - 773        26.5      [21]
                     Jute                     1.45       1.1 – 1.5    450 - 550       10 - 32    [34]








                   2.6.3  Flax fibre




                           Flax (Linum Usitatissimum) is extracted from the bast or skin of the stem of
                   the flax plant and is extensively cultivated in ancient Ethiopia and ancient Egypt. The

                   plant has been used since ancient times to produce linen cloth. Figures 2.11(a) and
                   2.11(b) show the flax plant and flax fibre, respectively. Flax was used as the linen

                   fabric by Egyptians to wrap their mummies. The advantages of flax include easy to

                   grow, has good tension and easy to find, making it less costly. However, flax has some
                   disadvantages like susceptibility to a wide variety of fungal diseases and the difficulty



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