TT3354 Syllabus - Technology Of Pre Spinning Process - 2021 Regulation Anna University

TT3354 Syllabus - Technology Of Pre Spinning Process - 2021 Regulation Anna University

TT3354

TECHNOLOGY OF PRE SPINNING PROCESS

 LTPC

3003

COURSE OBJECTIVES:
• To expose the students to the yarn numbering system used to specify textile yarns.
• To enable the students to understand the processes involved in the production of yarn from fibres.
• To enable the students to understand the machinery used for the production of yarns using short staple spinning system.

UNIT I

INTRODUCTION TO SPINNING

9

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, cleanliness on spinning performance; spinnability

UNIT II

GINNING AND BLOWROOM

9

Description and working of different types of gins; selection of right type of gins; ginning performance on yarn quality; objectives, principle and description of opening, cleaning and blending machines used in blowroom; chute feed; cleaning efficiency, production calculations.


UNIT III

CARDING

9

Objectives and principle of carding; detailed study of flat card; autolevelling; card clothing and its maintenance; drives and production calculation

UNIT IV

COMBING

9

Objectives of comber preparatory; detailed study of sliver lap, ribbon lap and super lap formers; objectives and principle of combing; sequence of combing operation; combing efficiency and production calculation.

UNIT V

DRAWING AND ROVING

9

Tasks of drawing machine; drafting systems used in modern drawing machines; autolevelling; draft and production calculation; objectives of roving machine; working of roving machine; bobbin builder mechanism – mechanical and electro-mechanical; draft, twist and production calculations.

TOTAL: 45 PERIODS

COURSE OUTCOMES:: Upon completion of the course, students will be able to
Upon the completion of this course the student will be able to, CO1: Explain the staple yarn spinning processes and fibre characteristics. CO2: Explain the ginning and blow room process and carryout calculations. CO3: Describe the objective, principle and working of carding machine and carryout production calculations.. CO4: Explain the preparatory for comber and combing process and carryout production calculation. CO5: Explain the process of drawing, roving and carryout draft, twist and production calculations.

TEXT BOOKS:
1. Klein W., Vol. 1-3, “The Technology of Short Staple Spinning”, “A Practical Guide to Opening & Carding” and “A Practical Guide to Combing, Drawing, and Roving frame”, The Textile Institute, Manchester, U.K., 1998. 2. Chattopadhyay R. (Ed), Advances in Technology of Yarn Production, NCUTE, IIT Delhi, 2002. 3. Klein W., Vol.4 -5, “A Practical Guide to Ring Spinning, 1987” and “New Spinning Systems, 1993" The Textile Institute, Manchester, 1987. 66 4. Gowda R.V.M, “New Spinning Systems”, NCUTE, IIT Delhi, 2003.

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 41 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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