TX 9211 THEORY OF YARN SPINNING SYLLABUS | ANNA UNIVERSITY MTECH TEXTILE TECHNOLOGY 1ST SEM SYLLABUS REGULATION 2009 2011 2012-2013 BELOW IS THE ANNA UNIVERSITY FIRST SEMESTER M.TECH TEXTILE TECHNOLOGY DEPARTMENT SYLLABUS, TEXTBOOKS, REFERENCE BOOKS,EXAM PORTIONS,QUESTION BANK,PREVIOUS YEAR QUESTION PAPERS,MODEL QUESTION PAPERS, CLASS NOTES, IMPORTANT 2 MARKS, 8 MARKS, 16 MARKS TOPICS. IT IS APPLICABLE FOR ALL STUDENTS ADMITTED IN THE YEAR 2011 2012-2013 (ANNA UNIVERSITY CHENNAI,TRICHY,MADURAI, TIRUNELVELI,COIMBATORE), 2009 REGULATION OF ANNA UNIVERSITY CHENNAI AND STUDENTS ADMITTED IN ANNA UNIVERSITY CHENNAI DURING 2009
TX 9211 THEORY OF YARN SPINNING L T P C
4 0 0 4
UNIT I FIBRE DISPERSION AND CLEANING 18
Mechanism of ginning of cotton, factors affecting ginning; the necessity fibreindividualization;
fibre opening and cleaning in blow-room machinery; forces acting on the
fibre during carding operation; the mechanism of fibre dispersion, fibre transfer, short fibre
removal and trash removal; entanglement and disentanglement of fibres; theory of hook
formation; the new approaches to improve fibre-dispersion in carding operation; mechanism
of removal of short fibre, neps and trash in comber.
UNIT II ATTENUATION AND FIBRE STRAIGHTENING 18
Principle of roller drafting and its application in yarn production; ideal drafting; factors
affecting drafting force, fibre dynamics during drafting, drafting irregularities and their causes
and remedies; amount of draft and draft distribution on strand irregularity; the function of
aprons in roller drafting; limitation of apron-drafting and the scope for improvement;
mechanism of wire- point drafting and its application in yarn production; merits and demerits
of wire-point drafting; comparison of wire-point drafting with roller drafting; influence of fibreextent
on yarn quality; improvement of fibre-extent by carding, drafting and combing actions.
UNIT III TWISTING 12
Twisted yarn geometry, forces acting on fibre and yarn during twisting, effect of fibre helix
angle on strength, parameters affecting optimum twist level; balloon and spinning triangle
formation and their effects on yarn quality and productivity; fundamental requirement to
create real twist in a strand, mechanism of twisting principles in ring spinning, separation of
twisting and winding actions of yarn; modified twisting principles - open end twisting, false
twisting, air-jet twisting, air-vortex twisting, up-twisting, two-for-one twisting, hollow-spindle
twisting; merits and demerits of modern twisting system.
UNIT IV FIBRE BLENDING AND LEVELLING 12
Importance of achieving homogeneous blending in fibre-mix; types of mixing during spinning
preparatory process; lateral and longitudinal fibre blending; analysis of fibre blend index
values; process parameters of spinning machinery for processing blended material;
influence of intermediate product uniformity on yarn uniformity; different methods of levelling
adopted during spinning processes.
TOTAL: 60 PERIODS
REFERENCES
1. Oxtoby E., "Spun Yam Technology", Butterworths, London, 1987
2. Klein W., "The Technology of Short-staple Spinning", The Textile Institute, Manchester,
1998. ISBN: 1870812980.
3. Klein W., "A Practical Guide to Opening and Carding", The Textile Institute, Manchester,
1999. ISBN: 1870812999.
4. Klein W., "A Practical Guide to Combing, Drawing and the Roving Frame", The Textile
Institute, Manchester, 1999. ISBN: 1870372287.
5. Klein W., "A Practical Guide to Ring Spinning", The Textile Institute, Manchester, 1999.
ISBN: 1870372298.
6. Lord P.R., "Yarn Production: Science, Technology and Economics", The Textile Institute,
Manchester, 1999. ISBN: 1870372174.
7. Salhotra K.R. and Chattopadhyay R., "Book of papers on Blow room, Card", Indian
Institute ofTechnology, Delhi, 1998.
8. Shaw J., "Short-staple Ring Spinning", Textile Progress, The Textile Institute,
Manchester, 1982
9. Doraiswamy I., Chellamani P., and PavendhanA., "Cotton Ginning", Textile Progress,
Vol. 24, No.2, The Textile Institute, Manchester1993. ISBN: 1870812484.
10. Grosberg P. and Iype C, "Yarn Production: Theoretical Aspects", Textile Institute, 1999,
ISBN: 1870372034.
TX 9211 THEORY OF YARN SPINNING L T P C
4 0 0 4
UNIT I FIBRE DISPERSION AND CLEANING 18
Mechanism of ginning of cotton, factors affecting ginning; the necessity fibreindividualization;
fibre opening and cleaning in blow-room machinery; forces acting on the
fibre during carding operation; the mechanism of fibre dispersion, fibre transfer, short fibre
removal and trash removal; entanglement and disentanglement of fibres; theory of hook
formation; the new approaches to improve fibre-dispersion in carding operation; mechanism
of removal of short fibre, neps and trash in comber.
UNIT II ATTENUATION AND FIBRE STRAIGHTENING 18
Principle of roller drafting and its application in yarn production; ideal drafting; factors
affecting drafting force, fibre dynamics during drafting, drafting irregularities and their causes
and remedies; amount of draft and draft distribution on strand irregularity; the function of
aprons in roller drafting; limitation of apron-drafting and the scope for improvement;
mechanism of wire- point drafting and its application in yarn production; merits and demerits
of wire-point drafting; comparison of wire-point drafting with roller drafting; influence of fibreextent
on yarn quality; improvement of fibre-extent by carding, drafting and combing actions.
UNIT III TWISTING 12
Twisted yarn geometry, forces acting on fibre and yarn during twisting, effect of fibre helix
angle on strength, parameters affecting optimum twist level; balloon and spinning triangle
formation and their effects on yarn quality and productivity; fundamental requirement to
create real twist in a strand, mechanism of twisting principles in ring spinning, separation of
twisting and winding actions of yarn; modified twisting principles - open end twisting, false
twisting, air-jet twisting, air-vortex twisting, up-twisting, two-for-one twisting, hollow-spindle
twisting; merits and demerits of modern twisting system.
UNIT IV FIBRE BLENDING AND LEVELLING 12
Importance of achieving homogeneous blending in fibre-mix; types of mixing during spinning
preparatory process; lateral and longitudinal fibre blending; analysis of fibre blend index
values; process parameters of spinning machinery for processing blended material;
influence of intermediate product uniformity on yarn uniformity; different methods of levelling
adopted during spinning processes.
TOTAL: 60 PERIODS
REFERENCES
1. Oxtoby E., "Spun Yam Technology", Butterworths, London, 1987
2. Klein W., "The Technology of Short-staple Spinning", The Textile Institute, Manchester,
1998. ISBN: 1870812980.
3. Klein W., "A Practical Guide to Opening and Carding", The Textile Institute, Manchester,
1999. ISBN: 1870812999.
4. Klein W., "A Practical Guide to Combing, Drawing and the Roving Frame", The Textile
Institute, Manchester, 1999. ISBN: 1870372287.
5. Klein W., "A Practical Guide to Ring Spinning", The Textile Institute, Manchester, 1999.
ISBN: 1870372298.
6. Lord P.R., "Yarn Production: Science, Technology and Economics", The Textile Institute,
Manchester, 1999. ISBN: 1870372174.
7. Salhotra K.R. and Chattopadhyay R., "Book of papers on Blow room, Card", Indian
Institute ofTechnology, Delhi, 1998.
8. Shaw J., "Short-staple Ring Spinning", Textile Progress, The Textile Institute,
Manchester, 1982
9. Doraiswamy I., Chellamani P., and PavendhanA., "Cotton Ginning", Textile Progress,
Vol. 24, No.2, The Textile Institute, Manchester1993. ISBN: 1870812484.
10. Grosberg P. and Iype C, "Yarn Production: Theoretical Aspects", Textile Institute, 1999,
ISBN: 1870372034.
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