Wet Processing II paper (WPE 311), 2021 Level-3 Term-I, from BUTEX affiliated colleges. Covers raised printing styles, sodium alginate thickener preparation, flock printing, continuous and drop-on-demand inkjet, disperse dye printing of polyester, and binder characteristics.
Level-3 Term-I, Final Exám-2021
Subject: Wet Processing II (Code: WPE 311)
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) Differentiate between printing and painting.
(b) Discuss the flow chart of printing.
(c) State the function of Urea, oxidizing agent, thickener and fixer.
[3+5+4 = 12]
2. (a) What are the different styles of printing? Differentiate between Dyed and Resist styles of printing.
(b) Discuss Raised Style of Printing in details. Why Raised style of printing is getting popular day by day?
(c) How will you produce printing impression by destroying the color of a previously dyed fabric?
[(1+2)+(3+3)+3 = 12]
3. (a) Define thickener. State the objective of using thickener.
(b) Illustrate the preparation of Sodium Alginate thickener.