Food Safety and Flexible Packaging Material
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Food Safety, Flexible Packaging, and Materials Eric Tu Oct., 2015
Transcript of Food Safety and Flexible Packaging Material
Food Safety, Flexible Packaging, and Materials
Eric Tu
Oct., 2015
Agenda
As living standard increased, people start pursuing not only better food, but also safer food.
Food Safety
In fact, packaging plays a critical role in food safety, but has been long a missing link in value chain
Food Safety
Therefore, mono material can no longer meet the critical requirements to ensure food safety for flexible packaging
Food Safety
So How Packaging Materials Affect Food Safety ?
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Is made of laminated structures
Flexible Packaging
How Packaging Materials Affect Food Safety
B Migration of residual chemicals
B Insufficient barrier properties B Packaging failure B Loss of seal integrity
Migration of Residual Chemicals
Major Sources of Residual Chemicals
Additives Residual Solvents
B Anti-oxidants B Surface
Modification Additives
B Other additives
B Solvent based adhesives and inks
B Solvent removal process is critical
Migration of Residual Chemicals
Sources of residual chemicals Additives
Residual Solvents
B Use only grades approved for food contact
B Use minimal additives dosage
B Properly design and operate solvent removal apparatus
B Use Solventless or Water Based adhesives and inks to ensure zero residual
Zero Residual Solutions
Insufficient Barrier Properties
Before We Start Talking about Barrier
B B
Importance of Barrier Properties
Maintain Freshness and flavor
B Cookies and Snacks B Powder Foods (Salt, Milo, Sugar…)
Prevent Spoilage
Retain Aroma
B Meats B Ham and Sausages B Sea Foods B Coffee and Tea B Chewing Gums
Commonly Market-Available Barrier Materials
®™ Trademark of The Dow Chemical Company (“Dow”) or an affiliated company of Dow.
Comparison of Barrier Permeability
Comparison of Barrier Permeability
Barrier Properties Comparison
Packaging Failure
B B B
Packaging Failure
B Pin-holes
B Broken Packages B Seal Failures
There are three packaging failures commonly seen during transportation, storage, and shelf displaying
Packaging Failure
B Pin-holes
B Broken Packages B Seal Failures
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There are three packaging failures commonly seen during transportation, storage, and shelf displaying
Packaging Failure
B Pin-holes
B Broken Packages B Seal Failures
There are three packaging failures commonly seen during transportation, storage, and shelf displaying
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Materials with Better Abuse Resistance BOPP Films, BOPA Films, and BOPET Films are commonly used as the mechanical/abuse layer or print layer in flexible packaging
All PE are equal, but some are more equal
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Loss of Seal Integrity
Provide Seal Integrity is Critical Seal failure enables air or other contaminants to leak inside the packages, hence get in contact with the contents and causes food safety issues
Possible Root Causes for Seal Integrity Failure B Insufficient heat sealing
and hot tack strength B Seal through
contamination issues
Sealant Selection Guide
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Seal-Thru Contamination If the contents are liquids, powders, or pastes, then the sealant surfaces might be contaminated during filling process, which potentially causes sealing failure
Seal-Thru Contamination
Measure the seal strength of the samples when the sealing surfaces are clean
Apply a fixed amount of “contaminants” on the sealing surfaces of the samples, Then measure the sealing Strength
Calculate the ratio of the two measurements, the higher the value, the better the seal-thru contamination performance
Seal-Thru Contamination Comparison
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Summary Packaging
Materials
