Why Linen Fiber Shows Poor Performance During Abrasion?

Why Linen Fiber Shows Poor Performance During Abrasion?

K. SENTHIL KUMAR
MODERN TESTING SERVICES INDIA PRIVATE LIMITED
Email: senthilkumar163@gmail.com




Linen is one of the strongest natural cellulosic fibres obtained from flax plant [Linum usitatissimum]. It’s around 2-3 times stronger than cotton.

The two main fibre properties that determine the abrasion resistance are work of rupture [energy required to break the fibre] & breaking extension [maximum distance the fibre can be stretched before breaking].

Fibre shows good resistance to abrasion,
  1. When the fibre require high energy to break.
  2. When the fibre can be stretched to a higher distance before breaking.
In this Technical note Tenacity[ ratio of load required to break the fibre and the linear density of that fibre],Breaking extension & work of rupture of Linen, Cotton & Viscose fibres are taken for study to show why linen shows poor performance during abrasion?
Fibre
Tenacity
Breaking extension
Work of rupture(mN/tex)
Linen
0.54 N/tex
3.0 %
8.0 mN/tex

Cotton-Upper
0.32 N/tex
7.1%
10.7 mN/tex
Viscose
0.18 N/tex
27.2%
30.6 mN/tex
  • The tenacity of linen fibre is 0.54N/tex which is greater than of cotton (0.32N/tex) & viscose (0.18N/tex).
  • The breaking extension of linen fibre is 3.0% which is less than of cotton (7.1%) & viscose (27.2%).
  • The work of rupture of linen fibre is 8.0mN/tex which is less than of cotton (10.7mN/tex & viscose (30.6mN/tex). 
Tenacity
Breaking extension
Work of rupture
From the above comparison it’s clear that the tenacity of linen fibre is more. That is why the tensile properties of linen fibres are more than cotton & Viscose. In case of abrasion due to the poor extension & less work of rupture, linen fibre will be quickly abraded during the abrasion test.

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