Effect of selectiv
Effect of selective chemical treatments of jute fibre on textile-related properties and processibility
P Ghosh, A K Samanta & G Basu
Changes in textile-related properties of jute fibre consequent to its treatment with plain water, steam, dilute aqueous NaOH solution and different oxidising agents such as H2O2, K2S2O8 and NaIO4 have been studied under specified conditions. It is observed that the steam treatment of wet jute fibre for 30 min at 121˚C, 0.5% dilute NaOH treatment at 30˚C for 60 min or at boil for 30 min, and oxidative treatment using only 3% H2O2 at 85˚C for 2 h and a combination of 3%H2O2 and 0.75% K2S2O8 at 30˚C for 2 h produce promising textile-related properties, such as weight loss, moisture absorption, tenacity retention, coefficient of friction, flexural rigidity, surface reflectance, dyeability and whiteness, yellowness and brightness indices. Jute fibres from the above prospective treatments have further been studied in respect of their spinnability. The treatment with 0.5% NaOH solution for 60 min at 30˚C and the oxidative treatment using a combination of 3%H2O2 and 0.75% K2S2O8 at 30˚C for 2 h are found to be promising in respect of energy efficiency and fibre droppage during carding, trouble-free spinning (zero to low end breakage rate), yarn structure (packing fraction and structural irregularities) and yarn properties like tenacity, initial modulus, flexural rigidity, quality ratio and work of rupture.
Keywords: Bleaching, Dyeing, Jute, Spinning, Yarn imperfections
IPC Code: Int.Cl.7 D06B 3/02
Vol. 39, March 2004, pp.100-109