Special Yarn Manufacturing paper (YE 403) from BUTEX affiliated colleges' 2021 Level-4 Term-I finals. Questions cover slub, loop, snarl, gimp and boucle yarns, knop yarn production, hollow spindle methods, core yarns in rotor spinning, and sewing thread packages.
Level-4 Term-I, Final Exám-2021
Subject: Special Yarn Manufacturing (Code: YE 403)
Time: 3.0 Hrs. Full Marks: 72
(Use separate answer script for Part: A and Part: B)
(All parts of a question must be answered consecutively)
Part: A
(Answer any three questions)
1. (a) Discuss about the classification of yarn.
(b) Describe slub yarn production in ring spinning system with a neat sketch.
(c) What are the differences between loop yarn and snarl yarn?
[4+5+3 = 12]
2. (a) Write short notes on (i) Gimp yarn (ii) Boucle yarn.
(b) Discuss the production method of knop yarn in ring spinning frame.
(c) What are the end uses of fancy yarn?