b.tech textile technology - Technical symposium.

TT9251 SPUN YARN TECHNOLOGY I LT P C
4 0 0 4
UNIT I INTRODUCTION 12
Sequence of spinning machinery for producing carded, combed and blended yarns in short
staple and long staple spinning system; yarn numbering systems- direct, indirect and
conversions; influence of characteristics of raw material – fibre fineness, length, strength,
elongation, stiffness, fibre friction, cleanness on spinning; spinnability.
UNIT II GINNING AND BLOWROOM MACHINERY 12
Description and working of different types of gins; selection of right type of gins; ginning
performance on yarn quality; objects, principle and description of opening, cleaning and
blending machines used in blowroom; chute feed; cleaning efficiency; neps and fibre rupture;
waste control; process control; production calculations.
UNIT III CARD 12
Objects and principle of carding; detailed study of flat card; card clothing and its maintenance;
drives and production calculation; neps, waste and quality control.
UNIT IV COMBER 12
Objectives of comber preparatory; detailed study of sliver lap, ribbon lap and super lap formers;
objects and principles of combing; sequence of combing operation; combing efficiency and
production calculation; hooks and neps removal, noil control, quality control.
UNIT V DRAWFRAME AND SPEEDFRAME 12
Tasks of drawframe; drafting systems used in modern drawframes; draft and production
calculation; objects of speed frame; working of speed frame; bobbin builder mechanism –
mechanical and electro-mechanical; draft, twist and production calculations; quality control in
draw frame and speed frame.
L : 45 , T : 15 , TOTAL : 60 PERIODS
REFERENCES
1. Oxtoby E., "Spun Yarn Technology ", Butterworth, London, 1987.
2. Klein W., "The Technology of Short-staple Spinning ", The Textile Institute, Manchester ,
1998.
3. Klein W., "A Practical Guide to Opening and Carding ", The Textile Institute, Manchester,
1999.
4. Klein W., "A Practical Guide to Combing, Drawing and Roving Frame ", The Textile Institute,
Manchester, 1999.
5. Lord P.R., "Yarn Production: Science, Technology and Economics ", The Textile Institute,
Manchester, 1999.
6. Salhotra K.R. and Chattopadhyay R., "Book of papers on Blowroom and Card ", Indian
Institute of Technology, Delhi, 1998.
7. Iredale J., "Yarn Preparation: A Handbook ", Intermediate Technology, 1992.
8. Doraiswamy I., Chellamani P. and Pavendhan A., "Cotton Ginning, Textile Progress ", The
Textile Institute, Manchester, 1993.
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