February 26, 2010

AT1621 ADVANCES IN YARN MANUFACTURE M.TECH APPAREL TECHNOLOGY AND MANAGEMENT


ANNA UNIVERSITY :: CHENNAI 600 025
CURRICULUM 2005 – FULL TIME MODE
M.TECH APPAREL TECHNOLOGY AND MANAGEMENT

AT1621 ADVANCES IN YARN MANUFACTURE 3 0 0 100

  1. DEVELOPMENTS IN RING SPINNING 8

Limitation of apron-drafting in ring-spinning; Constraints in ring-twisting; Technological concepts of designing rings and traveller profiles for high spindle speed; Principle of condensed yarn spinning; Comparison of different methods of condensed yarn spinning; Condensed yarn quality vis-à-vis conventional ring yarn quality.

2. ROTOR SPINNING 10
Principle of open-end spinning; the advantages of open-end spinning over ring spinning; Principle of operation of rotor spinning; Raw material requirement; Spinning preparatory processes; Developments in fibre-opening and fibre transport in rotor spinning; Yarn formation – latest developments in rotor geometry and its variables; Yarn withdrawal and winding – modifications in draw-off nozzle profile for production different types of yarns; Yarn structure and its properties; Economics of rotor spinning, Limitation of fine count spinning.

3. FRICTION SPINNING 9
Principle of friction spinning; Working of various friction spinning machines – Masterspinner, DREF 2, DREF 3, DREF 5 machines; Study of yarn formation and yarn characteristics; Effect of process parameters on spinning performance and yarn quality; Production of specialty yarns; Application fields for these yarns; Advantages and limitations of friction spinning; Latest developments in friction spinning – DREF 2000 and DREF 3000 friction machines.

4. APPLICATION OF FALSE-TWISTING 9
Principle of false twisting; Application of false-twist principle in Air-jet spinning, Wrap spinning, DREF-3 friction spinning, PLY-Fil spinning, Self-twist spinning; Operating principle, strength and weakness of the above processes; Analysis of yarn structure and characteristics; Latest developments in air-jet spinning.

5. OTHER NEW SPINNING SYSTEMS 9
The basic principle of yarn formation in Electrostatic spinning and Air-vortex spinning; Method of yarn production in Siro spinning, Solo spinning, Twilo spinning and Bobtex spinning processes; Limitations of these new spinning systems; Advances in Vortex spinning and concept of Single Step Spinning process.

TOTAL : 45 Hours

REFERENCES

  1. Klein W, New Spinning Systems, The Textile Institute, Manchester, 1993. ISBN: 1870812557.
  2. Gowda RVM, New Spinning Systems, NCUTE, New Delhi, 2003.
  3. Chattopadhyay R. (Ed), Advances in Technology of Yarn Production, NCUTE, IIT Delhi, 2002.
  4. Dyson E, Rotor Spinning, Technical and Economic Aspects, Textile Trade Press, New Mills, Stock Port, 1975, ISBN: 0903772116.
  5. Lord P R, Yarn Production: Science, Technology and Economics, The Textile Institute, Manchester, 1999.
  6. Lawrance C A and Chen K Z, Rotor Spinning, Textile Progress, Vol. 13, No.4, The Textile Institute, Manchester, 1984. ISBN: 0900739681.
  7. Basu A., "Progress in Air-jet Spinning", Textile Progress, Vol. 29, No.3, Textile Institute, U.K., 1997.
  8. 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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