AKTU Yarn Manufacturing –III (BTT502) Syllabus PDF – B.Tech 3rd Year

Course Outcome : After completing the course student will be able to:

CO1 ; Understanding objectives and yarn formation in ring spinning and drafting theory CO2 ; Understanding concepts of twisting and winding and package formation, spinning tension CO3 : Understanding spinning geometry ,Ring frame efficiency, spinning faults and waste control CO4 :Understanding compact spinning, yarn doubling techniques, twisting concepts in double yarn CO5 : Understanding different types sewing thread, tyre cord yarn, Reeling and yarn bundling, fancy yarn manufacturing , production calculation of doubling frame, latest developments in R/F

Unit-1 : Objectives of Ring Frame, Machine design and constructional features, operations involved in ring

spinning , working principle and yarn formation, Function of different elements of ring frame , objective , principle and mechanism involved in Drafting,Weighting system on ring frame, Selection of Draft Total Lectures Required = 8

Unit-2 : Objective , principle and mechanism involved in twisting process , Constructional features of

spindle , types of ring and traveler and their applications , Fibre lubrication , running on new ring ,yarn guiding elements and yarn tension control , Selection of twist , Objective , principle and mechanism involved in winding , cop structure , Building motion Total Lectures Required =7

Unit-3 : Spinning geometry , forces acting on ring and traveler , limitation of ring spinning and Factors

responsible for loss in efficiency ,Causes of end breaks and its control , Yarn faults and their remedies , classimat faults, Ring frame waste and waste collection , Calculation pertaining to draft , twist and production of ring frame.

Total lectures Required =7

Unit-4 : Compact spinning, Different methods of compaction , Advantages of compact spinning, Objectives

and principle of doubling , Methods of doubling -Ring doubling , Two for one(TFO) Twisting , Concept of balanced twist in doubled yarn ,Direction of twist in doubled yarn and its relation to single yarn , Characteristics of double yarns.

Total Lectures Required =7

Unit-5 : Different types of Sewing Threads , characteristic features of sewing thread , tyre cord yarns ,

Objectives of Reeling , Types of reeling , construction and working of reel , Yarn bundling , Fancy yarn manufacturing, calculation pertaining to double yarn production , Latest developments in ring frame Total Lectures Required =7 Grand Total of Lectures Required =36

Reference Books

1. Elements of Ring frame & Doubling – Dr A.R.Khare
2. The Technology of short staple spinning –W. Klein
3. Cotton Spinning – Taggart
4. Spun Yarn Technology –Oxtoby
5. Fundamentals of spun yarn technology by C.A. Lawrence
6. Elements of Practical cotton spinning by T.K Pattabhiram
7. Spinning of man made fibres and their blends by K.R Salhotra
8. Handbook of yarn production –Lord P. R
9. Short staple Ring spinning by J Shaw
10. TFO-Technology & Techniques by HVS Murty