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Mukul & chirag
 

Mukul & chirag

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rotor spinning

rotor spinning

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    Mukul & chirag Mukul & chirag Presentation Transcript

    • OVERVIEW Rotor spinning- earlier and today Navel selection- navel and fibre parameters Properties of navel Function of navel Effect of navel on different yarn properties Latest navel designs
    • ROTOR SPINNING – EARLIERAND TODAY
    • Modern rotor Vs. conventionalRotor Regularity of appearance Reduced imperfection count More abrasion resistant More extensible Less hairy
    • Components in OE–rotorspinning Opening roller Rotor Navel
    • Importance of Navel Twist insertion in yarn. Decides the yarn characteristics.
    • Working Principle of navel
    • PROPERTIES THE NAVELMUST POSSES Maximum service life Minimum heat generation. Reduced fly and dust generation. Soft as a steel navel to the yarn. Higher rotor speed.
    • NAVEL SELECTION – fibreparameters Natural fibres. Synthetic fibres. Fibres blend.
    • NAVEL SELECTION- Navelparameters Number of notches Form of notches Structure of navel surface Surface geometry of navel Radius Grooves Rotor speed
    • Draw off nozzles shapes Smooth. Notches. Spirals. Whirl inserts.
    • Effect of navel on different yarnproperties Evenness (U%) Yarn imperfection (thin-thick places and neps) Hairiness (H) Tenacity (cN/tex) Elongation (%)