a novel approach to clear barrier on packaging films howard kravitz, ceo tel: 484-367-7015, ext 302...
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![Page 1: A Novel Approach to Clear Barrier on Packaging Films Howard Kravitz, CEO Tel: 484-367-7015, ext 302 hkravitz88@nanopackinc.com NanoPack Inc](https://reader035.vdocuments.net/reader035/viewer/2022062315/5697bfe81a28abf838cb6596/html5/thumbnails/1.jpg)
A Novel Approach to Clear Barrier on Packaging Films
Howard Kravitz, CEOTel: 484-367-7015, ext 302
NanoPack Inc.
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•Business Materials science
•Location Wayne, PA
•Founding date 2004
•Commercial late 2008
•Employees 4 + 2*0.5
NanoPack Background
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Materials Science Company
Singularize particles in a solubilized resin that is printed on flexible films.
Goal: barrier to maintain shelf life
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Replaces traditional materials
•Standard materials•Polyvinylidene chloride•EVOH co-ex•PVOH•Glassy coatings•SiOx•AlOx
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Packaging Structure
Structural Film
Adhesive
Sealant Film
Ink
Barrier
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Coating Structure
30-40 layers of platelets
0.3µ
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Goal: Good barrier resin gets better with added tortuous path.
Choice of Resin is Important
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Good Barrier Resins
Low* loading of platelets• Barrier improved by orders of
magnitude• Excellent clarity• Destruct bond strengths
* Less than 10% platelet loading
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1 10 100 1000 1000010
100
1000
10000CLAYS: OTR vs. Aspect Ratio
Aspect Ratio
OTR
In
dex
Substrate alone
HectoriteMontmorilonite
Vermiculite
Constant Loading
Choice of Clay is Important
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__
_
__
__+++
+ ++
+
Choice of Vermiculite is ImportantSurface Charge is Key to Platelet Singularity
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Choice of Vermiculite is Important
__
_
__
__+++
+ ++
+
Singularity in solution requires proprietary chemistry
= NanoPack IP
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SEM: NanoSeal on Flexible Film
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__
_
__
__
Aroma Barrier
__
_
__
__
Another Feature of Vermiculite
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PrintedSide of Film
Film
CoatingTrough
Impression Roll
GravureCylinder
DoctorBlade
Dry barriercoating
Gravureapplication
Coating
film Barrier Film
film
Application of NanoSeal
Drying
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Oxygen Barrier
Better
Good
• PVdC (“saran”)
• EVOH co-ex• PVOH0.3
µ
0.6µ
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Note 1: %RH inside of package @ 0% when external RH is 0%; %RH inside of package @ 50% when external RH is ≥50%.
0% 20% 40% 60% 80% 100%0.1
1
10
NanoSeal on PET, 0.3µ
NanoSeal on BOPP, 0.3µ
EVOH: 10µ co-ex laminated to PET
PVDC, 1µ on PET
% Relative Humidity
OTR
, cc/1
00
in
²/d
ay·a
tm
Oxygen Barrier
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0 10 20 30 40 50 60 70 80 900.01
0.1
1
10
PVOH on BOPP, 2µ
NanoSeal on BOPP, 0.3µ
% Relative Humidty
OTR
, cc/1
00
in²/
day
Note 1: %RH inside of package @ 0% when external RH is 0%; %RH inside of package @ 50% when external RH is ≥50%.
Oxygen Barrier - continued
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Barrier – New Technology
0.001
0.01
0.1
0.1 0.05 0.002
NanoSeal™, 0.3µ Metal @ 25 Optical DensityNanoSeal™ & Metal
OTR
, cc/1
00
in
²Coated PET
NanoSeal™ Metal NanoSeal™ + Metal
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Economics
LowCost
HighCost
• PVOH
• EVOH co-ex (purchased)
• PVdC (“saran”)
• EVOH co-ex (in-house)
Illustrative
NP coated film
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Economics
LowCost
HighCost
• PVOH
• EVOH co-ex (purchased)
• PVdC (“saran”)
• EVOH co-ex (in-house)
Illustrative
PurchaseNanoSeal™ coating
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Environmentally Friendly
• Less material used
• No toxic chlorine
• Biodegradable
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Other Advantages
• Clarity (non-yellowing)• Scratch resistance• Flexibility• Oil resistance• Solvent resistance
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Commercial Status
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New Developments
•PLA•PE
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New Developments – anticipated
•Moisture barrier• Incorporation into adhesives
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Thank you
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