Anna University Wet Processing Machinery Exam Paper

Anna University Wet Processing Machinery Exam Paper

 TEXTILE CHEMISTRY

 

Time: 3hrs                                                                                          Max Marks: 100

Answer ALL Questions                                                                  PART – A (10 x 2 = 20 marks)

1.State the importance of winding for package dyeing.

2.State the precautions to be taken in cheese dyeing machine.

3.Give an account on overflow dyeing machine.

4.State how dyeing can be done using padding mangles.

5.State how screens are prepared for rotary screen-printing machines.

6.Give an account on Float dryer.

7.State the advantages of the Garment printing machine.

8.State the limitations of the Garment printing machine.

9.State the merits of Table Screen Printing.

10.State the demerits of Table Screen Printing.

 

PART – B (5 x 16 = 80 marks)

 

11.i)With necessary sketch explain how the hanks are dyed in cabinet dyeing      (8)

 

ii) Discuss in detail about Indigo dyeing by Ball warp dyeing method.                     (8)

 

12.a)i)  Explain in detail sewing thread dyeing and also mention the various types of packages for cheese dyeing.                                                                                      (8)

 

ii)  With neat sketch, discuss in detail about loose fibre dyeing machine and Also give the maintenance schedule for the same.                                                     (8)

 

(OR)

12.b)i)  Discuss in detail about possible dyeing defect in the dyeing of polyester using Jet dyeing machine with causes and remedies.                                                   (8)

 

ii)  Discuss in detail about “Tubular dryer”, “Relax dryer” and “Tumble dryer”. (8)

 

13.a)i)  Explain in detail high temperature beam dyeing m/c. What is the maintenance schedule for the same?                                                                                 (8)

ii)  Discuss in detail semi automatic Jigger dyeing machine and also give Maintenance schedule for the same.                                                                          (8)

 

(OR)

13.a)i)  Explain in detail line diagrams the principle and working of fully automatic flat bed printing machine.                                                                                            (8)

 

ii)  What are the functions of agers and discuss in detail the working principle of the same.                                                                                                                   (8)

 

14.a)i) Discuss in detail with line diagrams the principle and working of Rotary printing machine.                                                                                        (8)

 

ii) Discuss the merits and demerits of fully automatic flat bed with programmer printing machine.                                                                                 (8)

 

(OR)

 

14.b)i)  With necessary line diagrams explain the principle and working of Table Screen-printing machine.                                                                                       (8)

 

ii) Discuss in detail the causes and remedies for the various printing defects noticed while using rotary printing machine.                                                                         (8)

 

15.a)i) Explain in detail with line diagrams the principle and working of Garment printing machine.                                                                                                 (8)

 

ii) What are all the causes and remedies for the various defects seen on Flat bed printing?                                                                                              (8)

 

(OR)

15.b)i)  State the maintenance schedule for calenders and mention the purpose of the calenders.                                                                                                      (4)

 

ii)  Explain in detail with line diagrams the principle and working of Sanforising machine                                                                                                         (7)

 

iii)  Discuss in detail the various types of stenters.                                                 (5)

 

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