TT-303 Yarn Manufacture-III
UNIT I
Theory of spinning process:
Ø Forces acting on fibers during opening and cleaning process
Ø Analysis of cylinder load and transfer efficiency
Ø Fiber configuration in card and drawn sliver
Ø Mechanics of fiber straightening and hook removal
Ø Sliver irregularity
Ø Theory of drafting wave formation, Suppression of drafting wave
Ø Drafting force
Ø Roller slip, roller eccentricity and vibration
Ø Fiber fractionation in comber.
Ø UNIT II
Ø Analysis of forces on yarn and traveler
Ø Spinning tension in ring frame
Ø Twist flow in ring spinning
Ø End breaks during spinning
Ø Evaluation of blending efficiency
Ø UNIT III
Ø Rotor spinning
Ø Jet spinning
Ø DREF spinning
Ø Comparative analysis of yarn structure and properties and their end use application produced from above techniques
Ø Comparison with ring spinning
Ø UNIT IV
Ø Compact spinning
Ø Production of fancy yarns & their uses
Ø Production of industrial yarns- sewing threads
Ø Production of core spun yarns
Ø Doubling and TFO
Ø TFO principle, working
Ø Referred books
Ø Klein, W., “Manual of Textile Technology”, Shrot Staple Spinning Series, Vol 1-5, Textile Institute. Manchester
Ø R. Chattopadhyay, “Advances in Technology of Yarn Production”, 1st Ed., NCUTE, IIT Delhi, 2002
Ø J.E. Booth, “Textile Mathematics”, vol.3, 1st Ed., Textile Institute, Manchester, 1975\
Ø A.R. Khare, “Elements of ring frame and doubling”, Sai Book Centre, Mumbai.
Ø E. Oxtoby,
Ø R. Chattopadhyay, “Technology of Carding”, NCUTE, IIT Delhi, 2003