GTU BE 6th Semester 2162310 Plastic Packaging Technology Summer 2018 Question Paper

Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE – SEMESTER ?VI (NEW) – EXAMINATION ? SUMMER 2018
Subject Code:2162310 Date:08/05/2018
Subject Name:Plastic Packaging Technology
Time:10:30 AM to 01:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.

Q1. a. What is Packaging? 03
b. Difference between Primary and Secondary Packaging 04
c. Which Plastic materials are preferred for film application? Highlight advantages
and limitations of each 07
Q2. a. What is purpose of Labelling? 03
b. List features of controlled atmosphere packaging 04
c. Discuss in detail the functions of a Package. 07
OR
c. Give the properties and applications of LDPE, HDPE and LLDPE used as
plastics packaging material. 07
Q3. a. What are the essential features of good closures? 03
b. Define: cohesive strength, delamination, dimensional stability, barrier properties 04
c. Give properties and applications of Polystyrene (PS) and Polyamides (Nylons) used in packaging. 07
OR
Q3. a. State the changes brought by moisture on food products 03
b. What is the role of nanotechnology in packaging? 04
c. Explain flexographic printing and rotogravure printing with diagram. 07
Q4. a. Mechanical Hazards in Packaging 03
b. What are barrier properties? Explain procedure to determine it for the plastic film 04
c. Describe Pad printing process with neat diagram and also give their
applications. 07
OR
Q4.a. What are essentials in a consumer package? 03
b. Describe the various mechanical tests on packages 04
c. Explain Injection blow molding (IBM) process with neat diagram. Give
difference between IBM and EBM 07
Q5.a. What are colligative properties? 03
b. Give properties and applications of Polypropylene (PP) and Polyvinyl chloride
(PVC) used in packaging. 04
c. Define surface treatment. Why polyolefins are irrespective with ink? List the
surface treatment process carried out on plastic packaging materials 07
OR
Q5.a. Define coefficient of friction. 03
b. Write a note on: Tear strength. 04
c. Write down the advantages of pacakging 07