Improving Yarn Quality by Modification on Drafting Zone Settings of Draw Frame
Citation
MLA Style: Karthikeyan M Ramasamy, Ramesh Duraisamy, Habib Mammo "Improving Yarn Quality by Modification on Drafting Zone Settings of Draw Frame" International Journal of Engineering Trends and Technology 67.11 (2019):157-166.
APA Style:Karthikeyan M Ramasamy, Ramesh Duraisamy, Habib Mammo. Improving Yarn Quality by Modification on Drafting Zone Settings of Draw Frame International Journal of Engineering Trends and Technology, 67(11),157-166.
Abstract
Achieving yarn quality and uniform dyeing are great challenges for textile industries due to time-to-time variations in cotton fibre quality. Process parameters and machine settings are therefore has to be optimized based on the quality of fibre. The draw frame process in the yarn manufacturing sequence plays major significance in improving the quality of yarn. In this research the draw frame parameters such as the bottom roller setting, roller pressure and break draft were modified based on the properties of cotton fibre. The physical properties of yarn were evaluated by using standard testing methods. The analysis showed that the yarn unevenness and coefficient of variation, end breakages rate and hairiness index were reduced to 12.8%,16.8%, 4 per spindle hour and 14 respectively after modification on draft frame settings as referred to DRSC-2 and it shows better results than other modifications and unmodified settings. The imperfections of yarn such as thin places, thick places and neps were reduced significantly to 28, 101 and 94 per km respectively on the same modification. The yarn strength was improved to 15.21kg as compared to the unchanged settings (10.5 kg). Hence it’s concluded that the optimal changes on drafting roller parameters influence the yarn quality in a greater level.
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Keywords
Break draft, Imperfections, Roller setting, Strength, Top roller pressure