TC3012 TEXTURED YARN TECHNOLOGY SYLLABUS | ANNA UNIVERSITY BTECH TEXTILE CHEMISTRY 8TH SEMESTER SYLLABUS REGULATION 2008 2011 2012-2013 BELOW IS THE ANNA UNIVERSITY 8TH SEMESTER B.TECH TEXTILE CHEMISTRY 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
TC3012 TEXTURED YARN TECHNOLOGY L T P C
3 0 0 3
UNIT I CONCEPTS OF TEXTURISING 9
Purpose - Types of texturised yarns - Classification of process - Comparison of
texturised and untexturised yarns and fabrics – Mechanics of texturising. Physical and
mechanical properties of texturised filament yarn structure and geometry of texturised
yams - Application of texturised yarns - Role of spin finish on texturised yarns. Basic
Concepts of Helenca process, false twist, edge crimping, stuffer box gear crimping, knit -
deknit, Turbo-duo-twist and air jet texturising, - (Principles only).
UNIT II DRAW TEXTURISING & FALSE TWIST TEXTURISING 9
Advantages - Simultaneous and sequence draw texturising - Working principles and
machines,
Principle - Single heater and double heater - False twist texturising machines. Twisting
elements - Factors influencing Twist - Properties of Textured yarn - Effect of feed
material and process variables.
UNIT III FRICTION TEXTURISING AND AIR JET TEXTURISING 9
Principles - Beltex Unit, Ring tex Unit, - Heating elements mechanism of heating - Zone
length and speed. Texturised yarn defects. Air Jet Texturising- Principle - Air jet nozzle
types - Process variables - Yarn properties
UNIT IV TEXTURISING OF MAN MADE FIBRES 9
Principal methods of - Sheath core technique - thermo plasticization - Crystallization and
decrystallisation. Texturising of Polyester, Nylon, Polypropylene, Acrylic, Viscose and
their blends. Spin finish requirements for filaments meant for texturising. Dyeing
considerations-Texturised Nylon and polyester yarns high temperature dyeing and jet
dyeing - Finishing of textured yarns and fabrics by heat setting.
UNIT V QUALITY CONTROL AND MACHINE DESIGN CONCEPTS 9
Measurement of shrinkage force - Crimp contraction and dye uniformity - Texturamat -
M.Dynafil tester. Machine elements and layout - Yarn path.- Take- up system and
automation.
TOTAL : 45 PERIODS
REFERENCES
1. Wilson D.K. and Kollu, T., “Production of textured yarns by the false twist technique”,
Textile Progress Vol.21 No.3 Textile Institute, Manchester U.K
2. Gupta.V.B “Winter School on Man-made fibres – production, processing, structure,
properties and applications Vol. 1 & 2”, 2000
3. Hes.L. Ursinyp. “Yarn Texturing Technology”, Eurotex, U.K., 2001.
4. Wilson D.K. Kollu T. “Production of Textured yarns by methods other than False
Twist technique”, TP Vol. 16, No.3, Textile Institute 1998.
5. Demir.A “Synthetic Yarn Production”, Prentice –Hall Inc, New Delhi. 2004.
6. Behery H.M. and Demir A. Synthetic filament yarn texturing technology, Prentice
Hall, 2001.
7. Hearle J.W.S., Texturizing Technology, Woodhead Publishing, UK, 1998.
8. Gandhi R S. "Textured yarns', MANTRA, 1998
TC3012 TEXTURED YARN TECHNOLOGY L T P C
3 0 0 3
UNIT I CONCEPTS OF TEXTURISING 9
Purpose - Types of texturised yarns - Classification of process - Comparison of
texturised and untexturised yarns and fabrics – Mechanics of texturising. Physical and
mechanical properties of texturised filament yarn structure and geometry of texturised
yams - Application of texturised yarns - Role of spin finish on texturised yarns. Basic
Concepts of Helenca process, false twist, edge crimping, stuffer box gear crimping, knit -
deknit, Turbo-duo-twist and air jet texturising, - (Principles only).
UNIT II DRAW TEXTURISING & FALSE TWIST TEXTURISING 9
Advantages - Simultaneous and sequence draw texturising - Working principles and
machines,
Principle - Single heater and double heater - False twist texturising machines. Twisting
elements - Factors influencing Twist - Properties of Textured yarn - Effect of feed
material and process variables.
UNIT III FRICTION TEXTURISING AND AIR JET TEXTURISING 9
Principles - Beltex Unit, Ring tex Unit, - Heating elements mechanism of heating - Zone
length and speed. Texturised yarn defects. Air Jet Texturising- Principle - Air jet nozzle
types - Process variables - Yarn properties
UNIT IV TEXTURISING OF MAN MADE FIBRES 9
Principal methods of - Sheath core technique - thermo plasticization - Crystallization and
decrystallisation. Texturising of Polyester, Nylon, Polypropylene, Acrylic, Viscose and
their blends. Spin finish requirements for filaments meant for texturising. Dyeing
considerations-Texturised Nylon and polyester yarns high temperature dyeing and jet
dyeing - Finishing of textured yarns and fabrics by heat setting.
UNIT V QUALITY CONTROL AND MACHINE DESIGN CONCEPTS 9
Measurement of shrinkage force - Crimp contraction and dye uniformity - Texturamat -
M.Dynafil tester. Machine elements and layout - Yarn path.- Take- up system and
automation.
TOTAL : 45 PERIODS
REFERENCES
1. Wilson D.K. and Kollu, T., “Production of textured yarns by the false twist technique”,
Textile Progress Vol.21 No.3 Textile Institute, Manchester U.K
2. Gupta.V.B “Winter School on Man-made fibres – production, processing, structure,
properties and applications Vol. 1 & 2”, 2000
3. Hes.L. Ursinyp. “Yarn Texturing Technology”, Eurotex, U.K., 2001.
4. Wilson D.K. Kollu T. “Production of Textured yarns by methods other than False
Twist technique”, TP Vol. 16, No.3, Textile Institute 1998.
5. Demir.A “Synthetic Yarn Production”, Prentice –Hall Inc, New Delhi. 2004.
6. Behery H.M. and Demir A. Synthetic filament yarn texturing technology, Prentice
Hall, 2001.
7. Hearle J.W.S., Texturizing Technology, Woodhead Publishing, UK, 1998.
8. Gandhi R S. "Textured yarns', MANTRA, 1998
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