New Spinning Technologies

By Prof. R. Chattopadhyay   |   IIT Delhi
Learners enrolled: 71
Limitation of conventional spinning , Principle of high speed spinning technologies, Yarn formation mechanism, yarn structure and properties, processing problems, limitations, end use of yarns,

INTENDED AUDIENCE: Undergraduate and post graduate students of Textile Technology

PREREQUISITES: Textile fibres, Yarn Manufacture
Course Status : Upcoming
Course Type : Core
Duration : 12 weeks
Start Date : 23 Jan 2023
End Date : 14 Apr 2023
Exam Date : 30 Apr 2023 IST
Enrollment Ends : 30 Jan 2023
Category :
  • Textile Engineering
Credit Points : 3
Level : Undergraduate/Postgraduate

Page Visits

Course layout

  1. Limitations of ring spinning
  2. Principle of open end spinning
  3. General description of the machine, parts and their function, and working mechanism
  4. Sliver feed, fibre separation and transport
  5. Rotor design, grove geometry , Navel
  6. Twisting and yarn formation
  7. Process parameters and their significance
  8. Rotor yarn structure and properties
  9. Air jet spinning: Principle of Air jet spinning
  10. Sliver feed: high draft and high speed
  11. Twin jet design and twisting principle
  12. Yarn structure and properties
  13. Vortex spinning : Principle of vortex spinning
  14. Yarn formation mechanism
  15. Yarn structure and properties
  16. Friction spinning: principle of yarn formation
  17. Operational stages and their significance
  18. Friction drum design aspects
  19. Yarn formation mechanism
  20. Yarn structure and properties
  21. Wrap spinning: Principle of wrap spinning
  22. Yarn structure and properties
  23. Limitations of spinning systems

Books and references

1. Fundamentals of spun yarn Technology, C. A.Lawrence, CRC Press, 2003.
2. Manual of Textile Technology, New Spinning Systems,Volumes 5, W. Klein, The Textile Institute, Manchester,1993.
3. The Economics, Science and Technology of Yarn Production, P. R. Lord, School of Textiles, NC State University, USA, 1981.
4. Spun Yarn Technology, Eric Oxtoby, Butterworths,London, 1987.
5. Open End Spinning by V. Rohlena, Elsevier Scientific Publishing Company, 1975.
6. Open End Spinning by R. Nield, The Textile Institute,Manchester 1975.

Instructor bio

Prof. R. Chattopadhyay

IIT Delhi
Prof. R Chattopadhyay , past Head of Department of Textile and Fibre engineering, IIT Delhi , has been teaching in the department for last 30 years. He has been publishing papers in national & international journals , presying papers in national and international conferences, reviewing papers, consulting industry . He is associated with Govt. organization , research institutes and academic institutions of the country. He has developed this course on Textile Product Design and Development for the senior UG and PG students of the department and offering the course for more than 10 years.

Course certificate

The course is free to enroll and learn from. But if you want a certificate, you have to register and write the proctored exam conducted by us in person at any of the designated exam centres.
The exam is optional for a fee of Rs 1000/- (Rupees one thousand only).
Date and Time of Exams: 30 April 2023 Morning session 9am to 12 noon; Afternoon Session 2pm to 5pm.
Registration url: Announcements will be made when the registration form is open for registrations.
The online registration form has to be filled and the certification exam fee needs to be paid. More details will be made available when the exam registration form is published. If there are any changes, it will be mentioned then.
Please check the form for more details on the cities where the exams will be held, the conditions you agree to when you fill the form etc.


Average assignment score = 25% of average of best 8 assignments out of the total 12 assignments given in the course.
Exam score = 75% of the proctored certification exam score out of 100

Final score = Average assignment score + Exam score

YOU WILL BE ELIGIBLE FOR A CERTIFICATE ONLY IF AVERAGE ASSIGNMENT SCORE >=10/25 AND EXAM SCORE >= 30/75. If one of the 2 criteria is not met, you will not get the certificate even if the Final score >= 40/100.

Certificate will have your name, photograph and the score in the final exam with the breakup.It will have the logos of NPTEL and IIT Madras. It will be e-verifiable at nptel.ac.in/noc.

Only the e-certificate will be made available. Hard copies will not be dispatched.

Once again, thanks for your interest in our online courses and certification. Happy learning.

- NPTEL team

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