Packaging laminates 30.04.2020

Introduction to Packaging Laminates.
How it performs the 6 functions of packaging

1. Packaging Laminates Shakti Nadar 30 th April 2020

2. Definition of Packaging Art, Science & Technology of enclosing Products for Distribution

3. Functions of Packaging Contain Protect Preserve Identify Educate Dispense

4. Packaging Materials Glass Metals Paper & Paper boards Wood Plastic Aluminium Tin Rigid Semi-Rigid Flexible

5. Plastic Film A very thin layer of polymeric material is called film. Plastic Polymer can be PET, HDPE, LDPE, PP, PVC, etc It can be Natural or Coloured using masterbatch Plastic Film is tightly wound on Plastic or Paper Board Core

6. Extrusion

7. Cast Film

8. Blown Film

9. Difference between Cast & Blown film Home Work!!!

10. Co-Extrusion

11. Basic Pouch/Sachet types Side Seal Pouch Center Seal Pouch

12. Types of Center Seal

13. Heat Sealing It’s the process of sealing one thermoplastic to similar or another thermoplastic using Heat & Pressure. Heat is applied with hot metal bars Key Factors: Temperature Pressure Dwell Time

14. Heat Sealing Heat melts the polymer Molten polymers create a bond with each other due to pressure applied by metal bars This creates a hermetic seal Key aspects to check: Seal Strength Seal Integrity Drop

15. Catch 22 To get a good seal, we have to optimize : Temperature Pressure Dwell time How do we improve production speed? Reduce Dwell Time Hence, Increase temperature Increase in Temperature causes: Polymer charring! Charred polymer resides on sealing bars This causes improper seal

16. Catch 22 To clean the sealing bar, one has to stop the machine This cause production loss How do we address this?? Add a layer which melts at a higher temp. on the outer side

17. Lamination It is the process of bonding two or more films together with the help of an Adhesive The resultant is called Laminate Key aspects to check: Bond Strength Adhesive

18. Types of Lamination Solvent based Adhesive Lamination Solvent less Adhesive Lamination Hot Melt Adhesive Lamination Extrusion Lamination Water Chemical Mono Tandem For more info on Laminating adhesives click below link: www.slideshare.net/ashrikant58/07lamination-adhesives

19. Laminate development process Brief understanding Product understanding Benchmarking of competition Suppliers for PM Test Samples Suggest options Conduct Factory Trials / Machine Trials Shelf Life Testing Validation Specification

20. Shelf Life - Product Initial Moisture Content Final Moisture Content Critical Moisture Content Impact of Oxygen – oxidation WVTR or MVTR & OTR of Laminate

21. Printing Process Gravure Flexo Digital

22. Flow of Work - Aesthetics Brief Key Line drawing / Engg . Drawing Creative / Design development Artwork development Proofing Commercial Printing LSD / Shade Card

23. Dispensation Easy opening of sachet depends on multiple factors: Tear property of Polymer Film or Laminate Thickness Other ways to improve pouch opening: Serration in horizontal seal V-Notch

24. Dispensation Consumer convenience can be improved by: Spout Zipper Making it Functional Innovate www.nichrome.com/blog/nichrome-brings-easysnap-to-india / www.ecolean.com/lightweight-packages/snapquick / www.youtube.com/watch?v=Dwh0oPPPj_k

25. We did not discuss… Use of Aluminium or/and Paper in laminates Metalizing of films & use in Laminate Advantages of one lamination process over the other Additives in lamination Laminates for Retort technology Laminates for Vacuum packaging Relation between Filling Machines & Laminates (COF) Impact of Printing ink on Bond strength (reverse printing ) Seal Failure, Bond Failure

26. Thanks for Listening! Any Questions?