GATE (TF) Textile 2009 Question Paper Solution | GATE/2009/TF/07

Question 07 (Textile Engineering & Fibre Science)

Hairiness of ring spun yarn increases, when

(A)Traveller weight increases
(B)Front zone draft at ring frame increases
(C)Spindle speed decreases
(D)Ring rail speed increases
[Show Answer]

Option B is correct

Frequently Asked Questions | FAQs

What is actual draft?

In textile manufacturing, “draft” refers to the ratio of the speed of the front roller of the drafting system to the speed of the delivery roller. The actual draft is the actual ratio of the linear speed of the front roller to the linear speed of the delivery roller in the drafting system of a spinning frame.
The actual draft is important because it affects the final properties of the yarn being produced, such as strength, evenness, and thickness. A higher draft ratio will produce a thinner and stronger yarn, while a lower draft ratio will produce a thicker and weaker yarn.
The actual draft is affected by several factors, including the type of fiber being processed, the count of yarn being produced, and the desired properties of the final yarn. The actual draft is typically controlled by adjusting the distance between the front and delivery rollers in the drafting system.
It’s important to note that the actual draft can vary from the theoretical draft due to several factors, including variations in fiber thickness, roller diameter, and machine maintenance. Therefore, it’s important to regularly monitor and adjust the actual draft to ensure consistent and high-quality yarn production.

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