Abstract:
Jute and cotton fibres are most important
natural fibres. Cotton is being blended with jute fibre to
impart comforts, technical properties, flexibility for
producing diversified products and cost reduction. As
cotton and jute both are natural cellulosic fibres,
determination of individual percentage ratios in their
blending by chemical analysis is difficult. Presence of
individual fibres have been identified by FTIR analysis
as jute possesses aromatic ring group and cotton does
not. Fibre fineness analysis is also helpful to ensure the
existence of jute fibre in jute-cotton blended materials.
Here, blending ratio of jute and cotton fibre has been
determined by dyeing and weighing process. Physical
identification of component fibres by absorbing a
selective dye with respect to jute has been helpful to
differentiate and separate the jute-cotton fibres. In this
respect, basic dye is substantive to jute fibre and pure
cotton fibre has very poor substantivity to that dye.
Using this technique, Jute and cotton fibres have been
identified and manually separated from their blended
roving and yarn. Their percentage ratios have been
determined by weighing the separated fibres. This
experimental results reveals that the Jute/Cotton weight
percentage of jute cotton blended yarn was found as
16.58/83.42 respectively whereas the initial feed ratio of
these fibres in blow room was 30/70. This research will
help the spinners of jute-cotton blended yarns to control
their desired product requirements and quality.
