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Title: Effect of linear density, twist and blend proportion on some physical properties of jute and hollow polyester blended yarn
Authors: Debnath, Sanjoy
Sengupta, Surajit
Keywords: Bulk density
Flexural rigidity
Hollow polyester fibre
Static friction
Tensile properties
Yarn friction
Issue Date: Mar-2009
Publisher: CSIR
Abstract: The effect of yarn linear density, twist density and blend proportion on bulk density, tenacity, breaking extension, work of rupture, flexural rigidity, hairiness and friction of jute-hollow polyester blended yarns made on conventional jute spinning system has been studied. Box and Behnken experimental statistical design has been used to study the individual and interactive effects of independent variables. It is observed that the bulk density and coefficient of static friction increase initially with the increase in yarn linear density as well as twist. After reaching the maximum value, further increase in these parameters decreases the properties. In case of all jute yarn, the maximum tenacity reaches at 195 twists/m and 145 tex. However, for 60% jute blended yarn, these values are 210 twists/m and 155 tex. The minimum breaking extension attains at 135 tex with 220 twists/m for all jute yarn and 185 tex with 220 twists/m for 60% jute blended yarn. The specific work of rupture decreases with the increase in jute content in the blend. The maximum specific work of rupture is obtained at 185 tex with 230 twists/m in 60% jute blended yarn. However, in case of all jute yarn the maximum values are obtained at 200 twists/m and 135 tex. The specific flexural rigidity of yarn is higher for all jute yarn compared to that for jute blended yarn. The lowest yarn hairiness is observed at 160 tex with 215 twists/m for all jute yarn.
Page(s): 11-19
ISSN: 0971-0426
Source:IJFTR Vol.34(1) [March 2009]

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