TX 033 LONG STAPLE SPINNING TECHNOLOGY

ANNA UNIVERSITY :: CHENNAI – 600 025.
M.TECH. TEXTILE TECHNOLOGY
TX 033 LONG STAPLE SPINNING TECHNOLOGY

1. OPENING AND CLEANING 8

Removal of raw wool impurities; methods of raw flax and jute processing; blending of fibres.

1. CARDING 8

Functions of a carding machine; operating principle of woolen, worsted and semi-worsted, flax and jute carding machines; comparison with cotton carding machine.

1. COMBING 8

Objectives of wool combing; working details of comber preparatory processes and combing machine; worsted top finishing.

1. DRAWING 8

Theory of long fibre drafting; study of drafting irregularities; doubling and autolevelling during drafting; detailed study of worsted, semi-worsted, jute, and flax drawing; operating details of roving production.

5. SPINNING PROCESS 13
Detailed study of long-staple ring spinning machine –drafting, twisting, balloon theory and ring and traveler. Open-end spinning machines for long-staple fibres; principles and working details of rotor and friction spinning machines; comparison of long-staple yarn production with short-staple spinning process. Working principle of mule spinning machine; study of condensed spinning, centrifugal spinning, cap spinning, flyer spinning and self-twist spinning.
TOTAL : 45

REFERENCES

• Oxtoby E, Spun Yarn Technology, Butterworths, London, 1987.
• Lord P R, Yarn Production: Science, Technology and Economics, The Textile Institute, Manchester, 1999
• Happey F, Contemporary Textile Engineering, Academic Press, London, 1982.