Indian Central Jute Committee. Technological Research. Memoir No. 6. The Relations Between the Chemical Fibre Characters and the Spinning Quality of Jute

The dilution reduces the strength of the sulphuric acid solution to about The precipitated lignin" is allowed to settle and the supernatant liquid is filtered off through a tared fritted glass filter crucible on which the precipitate is finally collected and washed free from acid. [...] A little water is allowed to lie at the botton of the bottle and from time to time the even moistening of the 'fibre is ensured by shaking."( b ) The fibre is then thoroughly washed with cold water on a tared fritted glass filter crucible until the washings are neutral and free from active chlorine. [...] 4. RELATION TO SPINNING QUALITY A good indication of the relative spinning quality of various samples of jute is given by the strength and irregularity of yarns spun from the fibre under standard conditions. [...] A number of regression equations with quality ratio (Q) as. the dependent variable have been fitted to the experimental data and these are given in Table M. The correlation coefficients found between the actual quality ratios and those predicted by the equations are given in Col. [...] Further the fat-anwaxes in the fibre especially in combination with the mineral oil applied in batching will have a lubricating effect decreasing the friction between the fibre-strands composing the yarn.