PA4002 Plastics Packaging Syllabus:
PA4002 Plastics Packaging Syllabus – Anna University PG Syllabus Regulation 2021
COURSE OBJECTIVES:
To study about the functions of packaging.
To enable the students to understand the concepts testing of packaging material.
To know about the different packaging materials like cans, bottles, flexible films etc.
To study about the various methods of packaging to improve the shelf life of the products.
To learn about the testing of packaging.
UNIT I PLASTICS MATERIALS FOR PACKAGING
Introduction to Packaging – Functions of packaging –Properties and Applications of major packaging materials viz. Polyolefins, Polystyrene, Polyvinyl Chloride, Polyesters, Polyamides (Nylons), Polycarbonate and Newer materials such as High Nitrile polymers, Polyethylene Naphthalate (PEN), Polyetherimide (PEI) and LCP.
UNIT II PROCESSING OF PACKAGING MATERIALS
Adhesives, heat sealing types, sealing method, extrusion blown film and cast film and sheet co extrusion, surface treatment testing and evaluation of films, flexible packaging, pouches, bulk and heavy duty bags, thermoforming, thin sheet thermoforming, blow moulding, extrusion and injection blow moulding, foams, cushioning and distribution packaging.
UNIT III BIO BASED PACKAGING MATERIALS
Edible and bio-based food packaging materials, Edible film and coating, Polysaccharide based coatings, Lipid based coatings, Protein based coating, First, Second and Third bio-based packaging materials. Permeability of thermoplastic polymers, Multilayer films, Processing, Deteriorative reaction in foods, Enzyme reactions, Chemical reactions, Physical change, Biological change, shelf life of foods, Factors controlling shelf life.
UNIT IV APPLICATIONS OF PACKAGING
Aseptic packaging of foods, Sterilization of packaging materials, Packaging of microwavable foods, Active and intelligent packaging, Modified atmospheric packaging, Packaging of fresh foods, Packaging of horticultural products. Packaging of dairy products, Packaging of cereal, snack foods and confectionery, Packaging of beverages, Comparison of polymer packaging with paper, metal and glass materials, printing processes, Safety and legislative aspect of packaging.
UNIT V TESTING OF PACKAGING MATERIALS
Mechanical properties–Tensile properties, Impact properties, Tear strength, Burst strength, Stiffness, Crease or flex resistance, Co-efficient of friction, Blocking, Orientation and shrinkage. Optical Properties–Clarity, Haze and gloss Barrier Properties–Oxygen transmission, Water vapour transmission rate – Migration.
TOTAL: 45 PERIODS
COURSE OUTCOMES:
At the end of the course, students will be able to
CO1 Gain knowledge on the plastic packaging process and materials.
CO2 Familiarize with the testing of plastic packaging.
CO3 Attain knowledge of Biobased packaging
CO4 Understand the concepts of plastics materials used in packaging industries
CO5 Understand the machinery used in packaging field and testing equipments used for packaging products.
REFERENCES:
1. Gordon L. Robertson, Food Packaging Principles and Practice, Marcel Dekker, Inc., New York 1993.
2. Louis T. Manzione, Plastic Packaging of Microelectronic Devices, Van Nostrand Reinhold, New York, 1990
3. Plastics films -Technology and packaging applications-Kenton R, Osborn, Wilmer A Jenkins, Institute of Packaging professionals, CRC Press.2019.
4. Understanding Plastics Packaging Technology (Hanser Understanding Books) , Hanser; First edition (September 1, 1997).
5. Plastic Films in Food Packaging, 1st Edition-Materials, Technology and Applications Sina Ebnesajjad, Elsevier, December 2012