Yarn Manufacture-III

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

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

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.

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.

• 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
• Grand Total of Lectures Required =36