This document provides an overview of flexible packaging materials and processes. It discusses the main plastic materials used like PET, PE, PP, and PA. It describes conversion processes for flexible packaging film production such as extrusion, multilayer extrusion, lamination, and metallization. The document also covers testing of mechanical, barrier, optical and surface properties. Finally, it discusses sustainability and recycling of flexible packaging materials.

1. FLEXIBLE
PACKAGING
in food & household and personal care (HPC) applications

2. Greetings!
Aayushi Wawre
Assistant Manager- R&D
Constantia flexibles
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3. ‘’
It’s not plastic, it’s us!
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4. Agenda
▣ Packaging introduction
▣ Materials used in flexible packaging
▣ Process used to make flexible packaging film or
laminate
▣ Testing of flexible packaging materials, films,
and laminates
▣ Sustainability, recycling, and its necessity
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5. Types of packaging
METALS, ALLOYS AND GLASS PLASTIC
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6. What do we understand by plastic
packaging?
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SAFETY
To transport and handle the
infeed safely
COVERAGE
To cover the infeed fully
without harming it
To make the infeed
marketable
AESTHETICS
To increase the shelf life of
infeed
SHELFLIFE

7. Types of plastic packaging
FLEXIBLE RIGID
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8. 8 www.flexipack.com/product/laminate-bag

9. 1.
MATERIALS
1. PET
2. PE
3. PP
4. PA
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10. Polyethylene Terephthalate (PET)
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• STIFF
• OXYGEN BARRIER
• TENSILE PROPERTIES
• POLAR
• SURFACE TENSION
• PRINTABILITY
• PRINT REPEATABILITY
• GLOSSY

11. Chemically coated (CC) PET
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• SEAL STRENGTH
• POLARITY
• METALLIZATION
• HIGH HEAT RESISTANCE
• CLARITY
• TRANSPERANCY
• ADHESION TO INK

12. Metallized (Met) PET
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• SURFACE HARDNESS
• MOISTURE BARRIER
• OXYGEN BARRIER
• UV RESISTANCE
• THERMAL RESISTANCE

13. Biaxially Oriented (BO) PET
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• TENSILE STRENGTH
• DURABILITY
• HEAT RESISTANCE
• GAS-BARRIER
PROPERTIES
• DIMENSIONAL STABILITY
• CHEMICAL INERTNESS
• CLARITY

14. Low-Density Polyethylene (LDPE)
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• TENSILE STRENGTH
• FLEXIBILITY
• TOUGH
• SOFT
• DURABILITY
• PUNCTURE RESISTANCE
• WATER-REPELLENT
• WELL-INSULATING
• RESISTANT TO ACID

15. High-Density Polyethylene (HDPE)
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• STRENGTH
• RIGID
• TOUGH
• LIQUID PROOF
• IMPACT-RESISTANT
• WEAR RESISTANT
• ODORLESS AND NON-
TOXIC
• UV RESISTANT.

16. Linear Low-Density Polyethylene (LLDPE)
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• STRENGTH
• FLEXIBLE
• IMAPCT STRENGTH
• DURABILITY
• CHEMICAL RESISTANCE
• LIQUID PROOF

17. Metallocene (m) LLDPE
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• HIGH CLARITY
• FLEXIBLE
• HEAT SEAL STRENGTH
• HOT TACK
• IMPACT RESISTANCE
• PUNCTURE RESISTANCE

18. Polypropylene (PP)
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• CLEAR
• HIGH GLOSS
• GOOD TENSILE
STRENGTH.
• ELASTISITY
• TOUGHNESS

19. Biaxially Oriented Polypropylene (BOPP)
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• TENSILE STRENGTH
• MODULUS (HARDNESS)
• LOW ELONGATION
• MOISTURE BARRIER
• LOW FOGGING
• STIFNESS
• LOW DART
• LOW HAZE
• LOW SURFACE TENSION

20. Cast Polypropylene (CPP)
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• MOISTURE BARRIER
• OPTICAL CLARITY
• GLOSS
• HIGH DART
• LOW HAZE
• LOW SURFACE TENSION
• HEAT SEALABLE
• GOOD ANCHORING OF INKS
AND ADHESIVES
• GREASE AND OIL RESISTANT
• TEAR / PUNCTURE RESISTANT
• LOW STATIC PROPERTIES

21. Biaxially Polyamide (BOPA)
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• TENSILE STRENGTH,
• LOW ELONGATION
(HARDER TO STRETCH)
• STIFFNESS
• OXYGEN BARRIER

22. APPLICATIONS
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3. Woven and non-
woven bags
Polypropylene bags for pulses,
granules, fertilizers etc.
4. Liquid food
Milk, curd, buttermilk etc
1. Solid Food
Like bread, pasta, chips etc
2. Reusable bags
Polyethylene bags,
5. Secondary packaging
Stretch wraps, shrink wraps
6. Pouches and zipper
bags
Made of LDPE, LLDPE

23. 2.
CONVERSION
PROCESS
1. EXTRUSION
2. MULTILAYER
EXTRUSION
3. ADHESIVE
LAMINATION
4. EXTRUSION
LAMINATION
5. METALLIZATION
6. PRINTING
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24. Blown film Extrusion
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25. Multilayer Blown film Extrusion
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26. 26

27. Adhesive Lamination
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28. Adhesive Lamination
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29. Extrusion Lamination
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30. 30

31. TESTING
1. MECHANICAL
2. BARRIER
3. OPTICAL
4. SURFACE
5. RAW MATERIAL
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3.

32. ▣ TENSILE
▣ ELONGATION
▣ HEAT SEAL STRENGTH
▣ BOND STRENGTH
▣ TEAR STRENGTH
▣ DART IMPACT STRENGTH
▣ MODULUS
▣ GRAMMAGE
Mechanical Properties
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33. ▣ WATER VAPOUR TRANSMISSION RATE
▣ OXYGEN TRANSMISSION RATE
Barrier Properties
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34. ▣ HAZE
▣ TRANSMITTANCE
▣ OPACITY
▣ GLOSS
Optical Properties
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35. ▣ COEFFICIENT OF FRICTION
▣ SURFACE TENSION/ TREATMENT
Surface Properties
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36. ▣ MELT FLOW INDEX
▣ MOISTURE ANALYSIS
Raw materials Properties
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37. 4.
SUSTAINABILITY
AND RECYCLING
1. MLP RECYCLING
2. INCREASING THE
PRODUCT
SUSTAINABILITY
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38. 3360043 metric ton
Total Plastic Consumpltion per annum (2018-19)
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39. 60%
Recycled
34%
Incenerated
6%
Landfilled
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40. Thank you!
Any queries?
You can find me at
aayushiwawre@gmail.com
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