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MRE Rations in All-Polymeric Pouches and why would we want to go there!. Tom Dunn Printpack Inc. Atlanta, Ga. Why do we wanna go there?. Look at current MRE packaging Really look at current MRE packaging! Look at current MRE logistics Consider novel food processing techniques

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mre rations in all polymeric pouches and why would we want to go there

MRE Rations in All-Polymeric Pouches and why would we want to go there!

Tom Dunn

Printpack Inc.

Atlanta, Ga

why do we wanna go there
Why do we wanna go there?
  • Look at current MRE packaging
  • Really look at current MRE packaging!
  • Look at current MRE logistics
  • Consider novel food processing techniques
  • Assess their impact on packaging requirements
    • Identify critical success factors for this packaging
    • Consider alternatives for achieving this mission!
  • Review results to date
  • Anticipate future development
a look at current mre packaging
A look at current MRE packaging

He that will not apply new remedies must expect new evils;

for time is the greatest innovator. 

Things alter for the worse spontaneously,

if they be not altered for the better designedly. 

~Francis Bacon

foil pouch lamination entrees
Foil Pouch Lamination: Entrees

Puncture Resistance, Heat resistance

Oriented PET

Aluminum Foil

Light, Oxygen, Water Vapor Barrier/ Stiffness

Oriented BON

Polyolefin

Puncture Resistance

Pouch Sealing / shock absorbance

mre logistics

Process

Packaging

Store

Transport

Store

Deploy

MRE Logistics
process logistics impact
Process/Logistics Impact

Adapt the Packaging!

light barrier results
Light Barrier Results
  • Virginia Tech review of photodegradation chemistry of MRE foods
    • Organoleptic and nutritional values at risk
    • Wide spectrum (UV-visible light) of active harmful light energy
  • Virginia Tech development of lab model to assess light barrier effectiveness
    • Olive oil and yogurt as model foods
    • Hexanal as target indicator
    • Link hexanal generation to UV-Vis light absorption of packaging materials
  • Design light barrier in packaging materials
    • Opacified polymer layer(s)
    • Opacified adhesive layer(s)
  • Confirm effectiveness with accelerated shelf life assessments
microwave transparency results

Figure A: Dielectric properties

Carbon Black

Carbon Black

Clear

1 opaque adhesive

Microwave Transparency Results
  • WSU adapted dielectric properties food method to flexible packaging
    • e’: ability of a material to store electromagnetic energy
    • e“: ability of a material to dissipate electric energy as heat
  • Carbon black
    • Limited FDA food-contact approval
    • Known microwave absorption
oxygen barrier results
Oxygen Barrier Results
  • Limited success with nanocomposites and multilayer coextrusions
    • Nanocomposites couple with MV energy
    • Coextrusions will play a role. (machine/material complexities slow down)
  • Available films and polymers have weaknesses
    • Moisture sensitivity
    • Coating durability
water vapor barrier results
Water Vapor Barrier Results
  • Simple polyolefins best MVTR providers
    • Strong thickness impact
    • Coatings the other alternative
  • High Barrier WVTR Coating durability issue
  • “Saran” Coating presents environmental negatives
pouch laminations foil v polymeric

Oriented PET

Oriented PET

Aluminum Foil

Coated PET

Oriented BON

Coated BON

Polyolefin

Polyolefin

Pouch laminations: Foil v. Polymeric

Barrier Coating

pouch laminations foil v polymeric1

Oriented PET

Coated PET

Coated BON

Polyolefin

Pouch laminations: Foil v. Polymeric

Puncture Resistance, Heat resistance

Light, Oxygen, Water Vapor Barrier/ Stiffness

Puncture Resistance

Pouch Sealing / shock absorbance

future developments packaging
Future Developments/Packaging
  • On-pack Time & Temperature Integrator
  • Shelf life modeling of logistics factors
    • Sensitivity analysis for barrier levels
    • Contribution to shelf life of secondary packaging
  • Microwave interaction with polymeric chemistry
  • Within pouch-type/between process shelf life comparisons
  • Impact of packaging on nutritional factors over time
    • Cross process technology comparison
    • Foil- and Polymeric- pouches comparison
  • Failure analysis: packaging volatiles during HPP
  • Definition of Quality Plan for MWS pouches
  • Technology transfer to commercial applications
thank you for your attention
Thank you for your attention!

Any questions, Now?

Later?tdunn@printpack.com