Modern Yarn Production Technologies (2162908)  

Syllabus

Sr. Topics Teaching Hours Module Weightage
1
Requirements of fibre characteristics
Requirements of fibre characteristics, possibilities and limitations of different spinning technologies other than ring spinning.
2
5 %
2
Rotor Spinning Technology
Limitations of ring spinning system as compared to rotor system.
Study of design developments in fibre separation and transportation, fibre deposition and twist insertion, design aspects of rotor.
Yarn tension and yarn monitoring in open end spinning
Developments of twisting elements of open end spinning.
Developments in rotor drives.
Production of fine rotor yarns, manmade yarns and blends, speciality yarns etc.
Structure, properties and applications of rotor yarns.
Limitations and problems in rotor spinning systems.
Recent technological developments in spinning and processing of rotor spun yarns.
13
31 %
3
Air Jet Spinning
Principle and raw material preparation for air jet spinning.
Principles of operation of MJS, MTS and MVS systems and difference between air jet spun and vortex spun yarn structures.
Process variables and machine parameters affecting the product quality.
Yarn properties, limitations and some of the important applications
6
14 %
4
Friction Spinning
Principle of operation and requirements of raw material.
Stages involved in the production of yarns in friction spinning.
Working principle of different friction spinning systems like DREF1, DREF2, DREF3, DREF5, DREF2000, DREF3000 alongwith technical descriptions.
Process variables and machine parameters affecting the product quality.
Yarn properties, limitations and some of the important applications
6
14 %
5
Other Unconventional Spinning Techniques
Introduction to wrap spinning, cover spinning, Bobtex Spinning, SIRO spinning, Self- twist spinning, Twistless spinning, Electrostatic spinning, Core spinning, solo spun yarn manufacture etc.
Requirements of raw materials, principles of operation and properties of yarns produced from these spinning systems.
Some of the important advantages and limitations of these spinning systems.
8
19 %
6
Compact Spinning
Principles of operation and raw material preparation.
Comparison of yarn structure with that of ring spun yarn.
Detailed study of compact yarns like ROCOS, Elite, COMFOR spinning etc.
3
7 %
7
Recent developments in all these spinning systems
Recent developments in all these spinning systems
4
10 %