Download GTU BE/B.Tech 2019 Summer 6th Sem New 2163608 Technology Of Dyeing Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Summer 6th Sem New 2163608 Technology Of Dyeing Previous Question Paper

1
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ?VI(NEW) ? EXAMINATION ? SUMMER 2019
Subject Code:2163608 Date:21/05/2019
Subject Name:Technology of Dyeing
Time:10:30 AM TO 01:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.


MARKS

Q.1 (a) What are fibres? Give its applications? 03
(b) How we can improve the efficiency of dyeing on textile fibres? 04
(c) Briefly explain the general properties of textile fibres. 07

Q.2 (a) Write a short note on: Yarn. 03
(b) Explain the after treatment method for the dyeing of remazol dyes. 04
(c) Briefly explain batch wise dyeing of cellulose fibres with hot brand reactive
dyes.
07
OR
(c) How will you justify the reactivity & affinity of reactive dye towards textile
fibre?
07

Q.3 (a) Write a short note on: Rapid dyeing on textile fibres. 03
(b) Justify: Dye-Fibre has bound with covalent bond in the system? 04
(c) How will you differentiate cellulose fibres & synthetic fibers? 07
OR
Q.3 (a) Write a short note on: Hot Air Dryers 03
(b) Explain the importance of ionic bonding in the dyeing of fibres with example. 04
(c) Explain Clauder Weldon dyeing machine with its construction, working
principle, neat sketch.
07

Q.4 (a) Explain winch dyeing machine with neat sketch. 03
(b) Establish the difference between Batch Dyeing & Continuous Dyeing. 04
(c) Which instrument is used for colour matching of dyed fibres? Explain with its
principle?
07
OR
Q.4 (a) Discuss the dye absorption in exhaust dyeing process. 03
(b) Explain Hussong hank dyeing machine with neat sketch. 04
(c) What is Supercritical Fluid? Explain dyeing with such fluids with its
advantages & disadvantages?
07

Q.5 (a) Explain microwave assisted dyeing process. 03
(b) Discuss the nature of ionic bonding within Dye-Fibre in dyeing systems? 04
(c) Explain U Type Fabric Dyeing Machine operated with high temperature and
high pressure?
07
OR

Q.5 (a) Write Short Note on: Hot Pad Batch Dyeing 03
(b) Discuss the beaker dyeing machine with its specification. 04
(c) Briefly explain the interactions of various components in dyeing? 07


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