GATE (TF) Textile 2013 Question Paper Solution | GATE/2013/TF/10

Question 10 (Textile Engineering & Fibre Science)

Compared to the spinning of finer cotton yarns, the preferred rotor diameter for the production of very coarse cotton yarns would

(A)Be higher
(B)Be lower
(C)Remain the same
(D)Change depending on fibre strength
Answer / Solution
[Show Answer]

Option A

Frequently Asked Questions | FAQs

What is rotor spinning?

Rotor spinning is a method of yarn production used in the textile industry. It is a high-speed, continuous spinning process that creates yarn by twisting and winding fibers together using a rotating spindle called a rotor. Rotor spinning is commonly used for spinning short staple fibers such as cotton, polyester, and viscose.

In the rotor spinning process, the fibers are fed into the machine and transported by air currents into a spinning rotor. The rotor rotates at a high speed, typically around 60,000 to 150,000 revolutions per minute (RPM), causing the fibers to be thrown outwards by centrifugal force. As the fibers are thrown out, they are captured by the walls of the rotor and twisted together to form a yarn.

The yarn produced by rotor spinning is generally coarser and less uniform compared to yarn produced by other spinning methods, such as ring spinning. However, rotor spinning is known for its high productivity and efficiency, as it allows for continuous yarn production with minimal interruptions. Rotor-spun yarns are commonly used in applications such as denim, towels, and industrial fabrics.

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