AKTU Yarn Technology-I (BCT301) Syllabus PDF – B.Tech 2nd Year

Course Objectives

1. To acquire knowledge of fundamentals of ginning, mixing, opening and cleaning, lap forming, carding, drawing, and combing.
2. To understand technological involvement with appropriate techniques in ginning, mixing, opening and cleaning, lap forming, carding, drawing, and combing processes.
3. To formulate and apply technological knowledge in ginning, mixing, opening and cleaning, lap forming, carding, drawing, and combing processes in spinning industry.
4. To make the spinning processes more productive in ginning, mixing, opening and cleaning, lap forming, carding, drawing, and combing.
5. To demonstrate knowledge for project work and be helpful to higher studies in the field of ginning, mixing, opening and cleaning, lap forming, carding, drawing, and combing. Unit (1): Total lectures required = 12 Introduction to yarn spinning system, Ginning, pre-cleaning of cotton. Description and working of roller ginning saw gins, and rotabar ginning, kinds of mixing. Principles of selection of cotton for mixing hand, bin, stack mixing, auto mixer, different cotton varieties advantage and disadvantage of mixing. Unit (2): Total lectures required = 12 Object of opening and cleaning. Types of openers, beaters, latest openers and beaters, Lap forming mechanism. Chute feed system, production calculation. Unit (3): Total lectures required = 12 Objects of carding, working principle of carding machine, stripping, Specification of different parts of card & card clothing, Coiling mechanism, card setting, neps/hooks formation, Production, draft and efficiency calculation. Unit (4): Total lectures required = 12 Objects of drawing, different drafting systems, ideal drafting, and Production monitoring and control, draft and efficiency calculation. Sliver blending on Drawframe. Auto levelers in card and Drawframe. Production, draft and efficiency calculation. Unit (5): Total lectures required = 12 Objectives of combing, system of lap preparation, configuration of fibre feed and process sequence in comber with working principle, Important parts of comber and their functioning, Combing cycle, concept of forward and backward feed, concept of comber waste, calculation pertaining to production and noil percentage,. Text Books and Reference material:
6. A Practical Guide to Spinning (Individual book for each unit) by W.Kiein.
7. Spinning of man made and blends on cotton systems by K.R.Salhotra
8. Manual of cotton spinning by Frank Fharnley
9. Technology of carding by R.Chattopadhyay

Course Outcomes

After successful completion of this course, the students should be able to;

1. Basic concept of conversion of staple fibres to yarn.
2. Theory of various operations carried out and working principle of machineries and different mechanism involved in pre spinning process for preparation of short staple fibres required for formation of yarn - ginning machinery, blowroom, card, drawframe.
3. Processing of different types of fibres and their blends according to the specifications and needs of the customers
4. Parameters required at different stages of processing of fibres and their influence on yarn quality.
5. Outline the process flow of short staple spinning operations.
6. Calculate draft, waste % and production of machines involved in each process.