Download AKTU B-Tech 6th Sem 2016-2017 EC602 Coating Of Textiles Question Paper

B. TECH.

THEORY EXAMINATION (SEM–VI) 2016-17

COATING OF TEXTILES

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Time: 3 Hours

Max. Marks : 100

Note: Be precise in your answer.

SECTION-A

1. Explain the following : (10x2=20)
   1. Polymeric material

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   2. Acrylic polymer
   3. Coating
   4. Calendaring
   5. Rheology
   6. Fabric

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   7. Clothing comfort
   8. Breathable fabric
   9. Abrasion resistance
   10. Low temperature impact test

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SECTION-B

2. Attempt any five parts of the following: (10x5=50)
   1. Discuss the process of estimation of GSM of coating.
   2. Discuss any one screen printing method for coating.
   3. Explain the roller coating process with the help of examples.
   4. Discuss "Knife as a Coating Head".

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   5. What is the concept of curing? Explain the method of curing of rubber coating.
   6. Explain Plastisols and apparent viscosity.
   7. Establish the relation between thickness of coating to distance between fabric and knife.
   8. What is Resistance to water penetration? Explain the process of testing of waterproofing.

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SECTION-C

3. Attempt any two parts of the following: (15x2=30)
   1. Discuss rheological behavior of compound of different materials.
   2. Differentiate between Thermo chromic Fabric and Temperature Adaptable Fabric.
   3. Write short notes on any two of the following:
      1. Impermeable coating.
      2. Camouflage nets.

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      3. Radiation cured coating.