B.Sc. DEGREE EXAMINATION, APRIL 2018
Fourth Semester
Fashion Design
TEXTILE CHEMICAL PROCESSING
(2016 onwards)
Time 3 Hours Maximum 75 Marks
Part A (10 X 2 20)
Answer all questions.
1. State the objectives of chemical processing of nylon.
2. What type of chemical process used for polyester
materials?
3. State the objectives of bleaching.
4. State the principle of desizing.
5. Classify the mordant dyes.
6. State the after treatments given to fabric dyed with direct
dyes.
7. Explain the different type of printing methods.
8. What is the difference between printing and dyeing?
Sub. Code
43
CP-8600
2
Wk 6
9. State the difference between water repellent and water
proof finishes.
10. What are chemicals used for UV protection finishes?
Part B X 5 25)
Answer all questions.
11. Explain the cotton fabric chemical process sequence
and its objectives.
Or
Explain the wool fabric chemical process sequence
and its objectives.
12. Explain the working of singeing machine.
Or
Explain the mechanism and process conditions for
desizing.
13. Discuss about the reactive dyeing
Or
Explain about the vat dyeing process.
14. Explain about the printing of fabric with acid dyes.
Or
Discuss about the after treatment of printed goods.
15. Explain the flame resistant finishes.
Or
Write a short note on denim finishing.
CP-8600
3
Wk 6
Part C X 10 30)
Answer all questions.
16. Explain the chemical processing of polyester and
cellulosic blend materials.
Or
Explain in detail about working of scouring process.
17. Explain the dyeing of cotton with direct and azoic
dyes.
Or
Discuss about the basic and natural dyes properties
and application process.
18. Discuss elaborately about the printing paste
constituents.
Or
Write short note on anti microbial and resin
finishing on cotton fabric.
———————