TT 2254 SPUN YARN TECHNOLOGY II SYLLABUS | ANNA UNIVERSITY BTECH TEXTILE TECHNOLOGY 4TH SEM SYLLABUS REGULATION 2008 2011 2012-2013 BELOW IS THE ANNA UNIVERSITY FOURTH SEMESTER B 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), 2008 REGULATION OF ANNA UNIVERSITY CHENNAI AND STUDENTS ADMITTED IN ANNA UNIVERSITY CHENNAI DURING 2009
TT 2254 SPUN YARN TECHNOLOGY II L T P C
3 0 0 3
AIM
To impart a sound knowledge in conventional and modern methods of yarn manufacture
with latest developments.
OBJECTIVE
To enhance the latest know how of Ring spinning, Rotor spinning, Friction
spinning and Jet spinning
To improve the technology in the newer methods of spinning
UNIT I RING SPINNING 9
Principle of ring spinning. Detailed study of modern ring frame creel – suspension type of
bobbin holder. Drafting system – angle of roller stand, fluted rollers, types of flutes –
cots, aprons and their specifications – types of top roller loading systems – spring
loading, pneumatic loading. Functions of yarn guide, balloon control ring, separators,
rings and travellers – symmetric and asymmetric rings – ring / traveller interaction and
profile matching – antiwedge ring and elliptical traveller, orbit ring / traveller, zenith ring /
traveller. Spindles – spindle size, spindle drives. Traveller lag – traveller burning and
control. Cop building – ring rail movements, builder motion, doffing procedure. Process
parameters – speeds-settings-draft-production particulars for cotton, synthetics and
blends.
Condensed yarn spinning – principle of compacting drafted fibre strand, different
methods of condensed yarn manufacture, condensed yarn properties vis-à-vis
conventional ring-spun yarn properties, benefits and limitations of condensed yarn
spinning
UNIT II ROTOR SPINNING 9
History of development of open end spinning, Principle of open end rotor spinning,
Mechanism of yarn formation – fibre individualisation, fibre assembling, integration of
fibres into open end of yarn, twist insertion, yarn withdrawal, Yarn structure – fibre
orientation and extent, fibre migration, twist structure, packing of fibres in yarn, Raw
material specification and fibre characteristics for optimum performance and yarn quality,
Process parameters influencing spinning performance and yarn quality – opening roller
speed and wire profile, rotor diameter, rotor speed, groove design, profile of doffing tube,
Yarn characteristics – strength and extension, unevenness and imperfections, hairiness,
flexural rigidity, abrasion resistance, Latest developments in rotor spinning, Economic
benefits, Technological and economic limitations for production of finer yarns, End uses
of rotor-spun yarns.
UNIT III FRICTION SPINNING 9
Introduction, Principle of operation, History of machine developments – PSL
Masterspinner, DREF-1 Friction Spinner, DREF-2 Friction Spinner, DREF-3 Friction
Spinner, DREF-5 Friction Spinner, DREF-2000 Friction Spinner, DREF-3000 Friction
Spinner, Yarn Formation process – fibre feed, fibre assembly, twist insertion, yarn
withdrawal, Yarn structure – structure of open end friction spun yarn, structure of coresheath
type (DREF-3) friction spun yarn, Raw material requirement and fibre
characteristics for friction spinning, Influence of process parameters – spinning drums’
speed, yarn withdrawal rate, friction ratio, suction air pressure, core-sheath ratio, factors
influencing fibre slip and twisting efficiency, Applications fields for open-end and coresheath
type friction-spun yarns, Merits and demerits of friction spinning, Latest
developments in friction spinning.
37
UNIT IV AIR-JET SPINNING 9
Introduction to false twisting, Basic principles and methods of fasciated yarn
manufacture – Dupont’s rotofil process, Toray air-jet spinning process, Murata jet
spinning, Murata vortex spinning, Importance of fibre characteristics for optimum
spinning performance and yarn quality, Classification of fasciated yarn structure, Yarn
properties, Yarn quality in relation to various process parameters – air pressure, draft,
delivery rate, ribbon width, feed ratio, Developments in air-jet spinning – 5-line high
drafting system, Murata twin spinning, Murata roller jet spinning, Murata vortex spinning
– MVS 851, MVS 861. Applications of air-jet spun yarns.
UNIT V OTHER SPINNING METHODS 9
Wrap spinning – principle of operation, raw materials for core and wrapper, yarn
structure and properties, spinning limits, applications of yarns.
Double-rove spinning – operating principle, process monitor, spinning geometry, effect
of strand spacing on spinning performance and yarn quality, process limitation,
Introduction to solo-spun technology, difference between siro spinning and solo
spinning, end uses of siro-spun and solo-spun yarns.
Core yarn spinning – basic principle and requirements of core yarn spinning, different
methods of core yarn production – manufacture of core yarn in ring spinning, rotor
spinning, friction spinning, air-jet spinning, raw materials for core yarn spinning,
applications of core-spun yarns.
Twistless and Self-twist spinning – basic principles of yarn manufacture, yarn
characteristics and end uses, latest developments.
TOTAL : 45 PERIODS
TEXT BOOKS
1. Klein W., Vol.4 -5, “A Practical Guide to Ring Spinning, 1987” and “New Spinning
Systems, 1993" The Textile Institute, Manchester, 1987.
2. Gowda R.V.M, “New Spinning Systems”, NCUTE, IIT Delhi, 2003.
REFERENCES
1. Chattopadhyay R. (Ed), Advances in Technology of Yarn Production, NCUTE, IIT
Delhi, 2002.
2. Lawrence C.A. and Chen K.Z, “Rotor Spinning”, Textile Progress, Vol. 13, No.4,
Textile Institute, U.K., 1981.
3. Basu A., "Progress in Air-jet Spinning", Textile Progress, Vol. 29, No.3, Textile
Institute, U.K., 1997.
4. Ishtiaque, S.M., Salhotra K.R. and Gowda R.V.M, "Friction Spinning", Textile
Progress, Vol. 33, No.2, Textile Institute, U.K., 2001.
TT 2254 SPUN YARN TECHNOLOGY II L T P C
3 0 0 3
AIM
To impart a sound knowledge in conventional and modern methods of yarn manufacture
with latest developments.
OBJECTIVE
To enhance the latest know how of Ring spinning, Rotor spinning, Friction
spinning and Jet spinning
To improve the technology in the newer methods of spinning
UNIT I RING SPINNING 9
Principle of ring spinning. Detailed study of modern ring frame creel – suspension type of
bobbin holder. Drafting system – angle of roller stand, fluted rollers, types of flutes –
cots, aprons and their specifications – types of top roller loading systems – spring
loading, pneumatic loading. Functions of yarn guide, balloon control ring, separators,
rings and travellers – symmetric and asymmetric rings – ring / traveller interaction and
profile matching – antiwedge ring and elliptical traveller, orbit ring / traveller, zenith ring /
traveller. Spindles – spindle size, spindle drives. Traveller lag – traveller burning and
control. Cop building – ring rail movements, builder motion, doffing procedure. Process
parameters – speeds-settings-draft-production particulars for cotton, synthetics and
blends.
Condensed yarn spinning – principle of compacting drafted fibre strand, different
methods of condensed yarn manufacture, condensed yarn properties vis-à-vis
conventional ring-spun yarn properties, benefits and limitations of condensed yarn
spinning
UNIT II ROTOR SPINNING 9
History of development of open end spinning, Principle of open end rotor spinning,
Mechanism of yarn formation – fibre individualisation, fibre assembling, integration of
fibres into open end of yarn, twist insertion, yarn withdrawal, Yarn structure – fibre
orientation and extent, fibre migration, twist structure, packing of fibres in yarn, Raw
material specification and fibre characteristics for optimum performance and yarn quality,
Process parameters influencing spinning performance and yarn quality – opening roller
speed and wire profile, rotor diameter, rotor speed, groove design, profile of doffing tube,
Yarn characteristics – strength and extension, unevenness and imperfections, hairiness,
flexural rigidity, abrasion resistance, Latest developments in rotor spinning, Economic
benefits, Technological and economic limitations for production of finer yarns, End uses
of rotor-spun yarns.
UNIT III FRICTION SPINNING 9
Introduction, Principle of operation, History of machine developments – PSL
Masterspinner, DREF-1 Friction Spinner, DREF-2 Friction Spinner, DREF-3 Friction
Spinner, DREF-5 Friction Spinner, DREF-2000 Friction Spinner, DREF-3000 Friction
Spinner, Yarn Formation process – fibre feed, fibre assembly, twist insertion, yarn
withdrawal, Yarn structure – structure of open end friction spun yarn, structure of coresheath
type (DREF-3) friction spun yarn, Raw material requirement and fibre
characteristics for friction spinning, Influence of process parameters – spinning drums’
speed, yarn withdrawal rate, friction ratio, suction air pressure, core-sheath ratio, factors
influencing fibre slip and twisting efficiency, Applications fields for open-end and coresheath
type friction-spun yarns, Merits and demerits of friction spinning, Latest
developments in friction spinning.
37
UNIT IV AIR-JET SPINNING 9
Introduction to false twisting, Basic principles and methods of fasciated yarn
manufacture – Dupont’s rotofil process, Toray air-jet spinning process, Murata jet
spinning, Murata vortex spinning, Importance of fibre characteristics for optimum
spinning performance and yarn quality, Classification of fasciated yarn structure, Yarn
properties, Yarn quality in relation to various process parameters – air pressure, draft,
delivery rate, ribbon width, feed ratio, Developments in air-jet spinning – 5-line high
drafting system, Murata twin spinning, Murata roller jet spinning, Murata vortex spinning
– MVS 851, MVS 861. Applications of air-jet spun yarns.
UNIT V OTHER SPINNING METHODS 9
Wrap spinning – principle of operation, raw materials for core and wrapper, yarn
structure and properties, spinning limits, applications of yarns.
Double-rove spinning – operating principle, process monitor, spinning geometry, effect
of strand spacing on spinning performance and yarn quality, process limitation,
Introduction to solo-spun technology, difference between siro spinning and solo
spinning, end uses of siro-spun and solo-spun yarns.
Core yarn spinning – basic principle and requirements of core yarn spinning, different
methods of core yarn production – manufacture of core yarn in ring spinning, rotor
spinning, friction spinning, air-jet spinning, raw materials for core yarn spinning,
applications of core-spun yarns.
Twistless and Self-twist spinning – basic principles of yarn manufacture, yarn
characteristics and end uses, latest developments.
TOTAL : 45 PERIODS
TEXT BOOKS
1. Klein W., Vol.4 -5, “A Practical Guide to Ring Spinning, 1987” and “New Spinning
Systems, 1993" The Textile Institute, Manchester, 1987.
2. Gowda R.V.M, “New Spinning Systems”, NCUTE, IIT Delhi, 2003.
REFERENCES
1. Chattopadhyay R. (Ed), Advances in Technology of Yarn Production, NCUTE, IIT
Delhi, 2002.
2. Lawrence C.A. and Chen K.Z, “Rotor Spinning”, Textile Progress, Vol. 13, No.4,
Textile Institute, U.K., 1981.
3. Basu A., "Progress in Air-jet Spinning", Textile Progress, Vol. 29, No.3, Textile
Institute, U.K., 1997.
4. Ishtiaque, S.M., Salhotra K.R. and Gowda R.V.M, "Friction Spinning", Textile
Progress, Vol. 33, No.2, Textile Institute, U.K., 2001.
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