8/9/2019 TA0904 Textile Chemical Processing
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Instructions:1. Group I and Group II questions should be
answered in the Main Answer book.2. In all questions of Group I,
the subdivision (a) carries 3 marks each and subdivision (b)
carries 5 marks each.3. Answer any SEVENquestions in Group I.4.
Answer any ONEquestion in Group II.5. Answer allquestions in Group
IIImultiple choice type questions (which will be given
to the candidates half an hour before the scheduled close of the
examination) shouldbe answered onlyin the space provided in the
Main Answer Book..
PSG POLYTECHNIC COLLEGE, COIMBATORE - 641 004
DTT (R) Semester:4
TA0904 TEXTILE CHEMICAL PROCESSING
Time : 3 Hours Maximum Marks: 75 Marks
GROUP - I
Marks : 7 x 8 = 56
1. a) Write the object of singeing and mention its types.
b) With a sketch explain the working of acid steep desizing
method.
2. a) What do you understand from optical brightening
agents?
b)Write about wringing and scutching process with respect to
bleaching.
3. a) Write the properties of mercerized yarn.
b) Explain the testing for quality of mercerization.
4. a) Define vatting and vatting time.
b) Write the recipe for direct dyeing, vat dyeing and sulphur
dyeing.
5. a) What do you mean by temporary finishing?
b) Explain the schreiner and embossing type of calender
finishing.
6. a) What do you understand from resin type of finishing?
b) Explain the soil release type of finishing in related to
cotton fabric.
7. a)Write about the resist style of printing.
b) Explain the working of rotary screen printing machine with
neat sketch.
8. a)Write about the direct style of printing.
b) Explain with neat sketch the working of zero-zero finishing
machine.
GROUP II
Marks : 1 x 9 = 9
8. Explain the construction and working of high temperature high
pressure steaming with neat
Sketch.
9. Explain in detail about the primary method and secondary
method of effluent treatment
adopted in chemical processing industry.
