TX4005 Process Control and Optimization in Yarn Spinning Syllabus:
TX4005 Process Control and Optimization in Yarn Spinning Syllabus – Anna University PG Syllabus Regulation 2021
OBJECTIVE:
To enable the students to understand and apply process and quality control measures during spinning of yarn to optimize the productivity and quality
UNIT I LEVELLING
Quality measures and control of intermediate products to achieve required yarn count with minimum dispersion; different levelling methods adopted in the pre-spinning machines; assessment and control of auto levelling; importance of fibre-mix homogeneity on yarn quality; types and levels of mixing in the preparatory processes; assessment of fibre-blend variations, effect of blend variation on fabric quality
UNIT II NEP AND HOOK REMOVAL
Causes of nep and hook formation, control measures; measurement of neps and hooks; factors influencing the removal of neps in the carding and combing machines; fibre hook straightening during the preparatory operations, factors
UNIT III WASTE CONTROL
Waste determination and cleaning efficiency; control of waste in blowroom, card and combers; influence of machine and processing parameters on waste removal; controlling the lint content in waste; control of pneumafil waste, hard waste in ring frame; determination of yarn realization; centralized waste collection system
UNIT IV PRODUCTION CONTROL
Balancing of machinery; factors affecting the production limits of the spinning machinery; new concepts in achieving higher production in the spinning machinery; computation of the productivity indices; automation, improving production and labour efficiency
UNIT V HUMIDITY CONTROL AND MACHINERY MAINTENANCE
Effect of humidity, temperature and maintenance of machinery on production and quality of yarn, optimizing ambiance and humidity control; process conditions required for producing polyester, viscose and blended yarns; yarn defects – causes and remedies
TOTAL: 45 PERIODS
OUTCOMES:
Upon completion of this course, the student shall be able to understand the
CO1: Quality control measures in terms of levelling of material
CO2: Control of neps and hooks
CO3: Factors influencing production rate and efficiency of spinning machines
CO4: Balancing of machinery, production and labour efficiency
CO5: Measures to be taken while processing manmade fibres, humidity control
REFERENCES
1. Lord P.R., “Handbook of Yarn Production; Science, Technology and Economics”, Woodhead Publishing, 2003, ISBN: 1855736969 | ISBN-13: 9781855736962
2. MajumdarA., Das A., Alagirusamy. R., and Kothari V.K., “Process Control in Textile Manufacturing”, Wood Head publishing, 2012, ISBN: 0857090275 | ISBN-13: 9780857090270
3. Thomas Weide., “The Rieter Manual of Spinning, Vol.7”, Rieter Machine Works Ltd., Winterthur, 2014, ISBN: 10 3-9523173-7-3 / ISBN: 13 978-3-9523173-0-3
4. Garde A.R., and Subramaniam T.A., “Process Control in Spinning”, ATIRA Publications, Ahmedabad, 1989.
5. Van der Sluijs M., and Hunter L., “Neps in Cotton Lint, Textile Progress”, The Textile Institute, Manchester, 1999, ISBN: 1870372239 / ISBN: 978-1870372237
6. Slater K., “Yarn Evenness”, Textile Progress, The Textile Institute, Manchester, 1986.
7. Townend P.P., “Nep Formation in Carding”, Wira, U.K., 1986, ISBN: 0900739851 / ISBN: 978- 0900739859.