yarn manufacturing process

1. Yarn Manufacturing

2. • Blowroom:
 Opening: Open the material into very fine tufts
 Cleaning: Eliminate most of the impurities.
 Mixing and Blending: Provide a good blend of two different fibers.
 Lap or Flocks formation: To form sheet of fiber with uniform weight and width called lap or transfer
the fibers in open form to card through chute feed.
• Input- Fibers Output- Lap/Fibers in chute feed system

3. • Carding:
 Opening into individual fibers: To open the tuft of fibers into individual fibers.
 Elimination of Impurities: To remove remaining trash particles from the material.
 Elimination of Dust
 Disentangling Neps: To remove neps from the fibers.
 Sliver Formation: Formation of Uniform strand i.e Sliver.
• Input- Lap/Fibers from Chute Feed Output- Carded Sliver

4. • Drawframe:
 Equalizing: To improve the evenness over short, medium and long term in the sliver.
 Parallelizing: To arrange the fibers parallelly in the sliver strand by drafting.
 Blending: Blending of sliver of two different materials can be achieved at Drawframe.
 Dust Removal
• Input- Carded Sliver Output- Drawn Sliver

5. • Speed Frame:
 Attenuation of Sliver: Drafting of the sliver strand.
 Insert twist & Roving Formation: To insert small amount of twist so to hold the strand of fibers
together.
 Winding on bobbin: To wind the twisted roving strand into a bobbin.
• Input- Drawn Sliver Output- Roving

6. •
 Drafting: To draw the roving to the specified degree of fineness.
 Twisting: To impart sufficient twist to the emerging strand of fibres to form a continuous length of
yarn
 Winding: To finish up the small stuff into convenient package called as bobbin.
• Input- Roving Output- Yarn

7. • Comber:
 Removal of Short Fibers: To remove short fibers of pre-determined length.
 Impurities removal from lap: Remove impurities from comber lap.
 Sliver formation: To produce a consistent sliver of required per unit length.
• Note: Input and output except comber are for carded yarn.

8. • Alternative Spinning Processes (Other than Ring Spinning):
 Rotor Spinning
 Air Vortex Spinning
 Electrostatic Spinning
 Friction Spinning
 Wrap Spinning
 Bobtex Process
 Adhesive Process
 False Twist process