Properties of Cotton Yarn Sized with Sago Starch
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Abstract
The objective of this research was to study possibilities and appropriate conditions of sizing cotton yarn with sago starch. To attain this objective, physical properties of cotton yarn sized with different ratios of sago starch, tapioca starch, and poly (vinyl alcohol) (PVA) were compared. In this study, various size were prepared, consisting of : 1) sago starch; 2) a mixture of sago starch and PVA; 3) tapioca starch; 4) a mixture of tapioca starch and PVA; and 5) PVA in 500 ml of water for sizing 120 yards of cotton yarn (32Ne). The physical properties of the cotton yarn were tested both before and after sizing with each sizing agent. According to the study, it was found that 50 g of sago starch and the mixture of 25 g of sago starch and 25 g of PVA needed the longest stirring time, the highest concentration of sizing agent and provide the highest percentage of sized pick up on cotton yarn, and the highest abrasion resistance of yarn. The cotton yarn sized with 20 g of sago starch showed the highest elongation at break. The lowest value of hairiness was shown after sizing the cotton yarn with 50 g of sago starch. Moreover, the cotton yarn sized with the mixture of 25 g of sago starch and 25 g of PVA exhibited the highest tensile strength.
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References
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