GATE (TF) Textile 2017 Question Paper Solution | GATE/2017/TF/09

Question 09 (Textile Engineering & Fibre Science)

Keeping card production same, the quality of carding will improve by setting

(A)Higher doffer rpm and coarser sliver hank
(B)Higher doffer rpm and finer sliver hank
(C)Lower doffer rpm and coarser sliver hank
(D)Lower doffer rpm and finer sliver hank
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Frequently Asked Questions | FAQs

What is card process in spinning?

The carding process is a critical step in the spinning of fibers into yarn. It is a mechanical process that involves separating and straightening fibers to prepare them for spinning.
During the carding process, the fibers are first fed into a machine called a carding machine. The carding machine has a series of rollers with fine wire teeth, known as carding cloth, that comb and separate the fibers. The fibers are then drawn through a funnel-shaped device called a trumpet, which aligns the fibers parallel to each other.
Next, the fibers are passed through a series of cylinders, each of which rotates at a different speed to further straighten and align the fibers. The resulting material is called a sliver, which is a long, narrow bundle of fibers that has been combed and straightened.
The sliver is then ready for the next step in the spinning process, which may involve further drawing, twisting, or other treatments to turn it into yarn. The carding process is an essential step in creating high-quality, consistent yarn from a variety of natural and synthetic fibers.

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