Download PTU B.Sc FD 2020 March 71504 Dyeing And Printing 2nd Sem Question Paper

Total No. of Pages : 02

Roll No.

Total No. of Questions : 07

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B.Sc.(FD) (2013 to 2017) (Sem.-2)

DYEING AND PRINTING

Subject Code : BSc FD-211

M.Code : 71504

Time: 3 Hrs. Max. Marks : 60

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INSTRUCTION TO CANDIDATES :

1. SECTION-A is COMPULSORY consisting of FIFTEEN questions carrying TWO marks each.
2. SECTION-B consists of THREE Sub-sections : Units-I, II & III.
3. Each Sub-section contains TWO questions, carrying TEN marks each.
4. Student has to attempt any ONE question from each Sub-section.

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SECTION-A

Q1. Attempt all questions in brief :

1. Define Singeing.
2. What are impurities?
3. Name the process which burns off projected fibres from the fabric surface.

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4. Which are the strongest and the weakest inter-polymer force of attraction on application of dye on textile?
5. What is union dyeing?
6. Name two fibres that can readily be dyed with disperse dyes.
7. What is beam dyeing?
8. Name two substances that can be used as resist in dyeing.

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9. Write two styles of printing.
10. Define Duplex print.
11. Difference between dyeing and printing.
12. Types of resist dyeing
13. Stages of dyeing

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14. Yarn dyeing
15. Acid dyes

SECTION-B

UNIT-I

Q2. What is grey fabric and give classification of Impurities?

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Q3. Write brief note on desizing, scouring, mercerization and bleaching.

UNIT-II

Q4. Differentiate dyes and pigments and discuss process of application of dyes on textiles.

Q5. Give classification of dyes and write brief description of all classes of dyes.

UNIT-III

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Q6. What is the impact of dyeing and printing on the environment?

Q7. What are important features, advantages and limitations of hand screen, Flat bed screen and rotary screen printings?

NOTE : Disclosure of Identity by writing Mobile No. or Making of passing request on any page of Answer Sheet will lead to UMC against the Student.

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