more than meets the eye: the world of packaging science
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More Than Meets the Eye: The World of Packaging Science. Maura Fierro October 23, 2012. Overview. Personal Background MeadWestvaco and Center for Packaging Innovation (CPI) Case Study - Skin Care Formulations Dispenser Q&A. Background. A little bit about me…. - PowerPoint PPT PresentationTRANSCRIPT
More Than Meets the Eye: The World of Packaging Science
Maura FierroOctober 23, 2012
Overview
• Personal Background • MeadWestvaco and Center for Packaging Innovation
(CPI)• Case Study - Skin Care Formulations Dispenser• Q&A
Background
A little bit about me…
$6 billion in revenue
20,000 employees worldwide
Presence in 30 countries
Growth in emerging markets
+40% sales outside North America
75% of revenue from packaging businesses
MWV is a global leader in packaging and packaging solutions
We are the look and feel of some of the world’s most-admired products
We serve the world’s largest consumer brands across key industries
Healthcare Consumer Electronics Food Beauty &Personal Care
Home & Garden Tobacco Beverage Food Service
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Beverage
Multipack cartons and containers for beverage and food items
Beverage
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High strength paperboard High quality graphic paperboard
Food
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Food Service
Sustainable and convenient solutions
Food Service
Healthcare
Adherence-enhancing Solutions Primary dispensing solutions
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Healthcare
Beauty & Personal Care
Pump and trigger sprayers with customized aesthetics
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Beauty and Personal Care
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Home & Garden
Pump and trigger sprayers Hose end sprayers Aerosol Actuators
Home & Garden
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Tobacco
Paperboard packs and cartons Specialty Products
Tobacco
Corporate OfficesPackaging Operations Paperboard | Packaging | Dispensing
Other Operations C&OP | Chemicals | CDLM
Global Locations
Americas
Europe
Asia Pacific
Need higher quality version of this graphic
• Centralized hub for collaborative innovation with customers and MWV teams
• Vision• Make innovation a differentiator for customers
• Be a catalyst for transformative growth
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Center for Packaging Innovation
Packaging Materials• Paper Science• Coatings• Polymer Science• Analytical Science
Packaging Development• Packaging Processes• Package Development• Pilot Plant / Diagnostics
Open Innovation Innovation Process Management
Research & Development
MWV Innovation Capability
Case Study: Chemical Compatibility of
Skin Care Formation Dispenser
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Pearl – Features
•Non Locking
•Bellow technology suitable for high
viscosity fluids
•Reduction of part count
•Metal free fluid pathway
•Maximum bottle evacuation
Total Effects, Olay’s top-selling line of anti-aging
moisturizers, is expected to save 800,000 pounds of
plastic a year – equivalent to the weight of a Boeing
747.
One component replaces five in conventional pump technology
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Pearl – Anatomy
Container (PP)
Bellow
Piston (HDPE)
Base (PP)
Overcap (PP)
Nozzle (PP)
Base (PP)
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Chemical Compatibility of Elastomer Valve
Background
• Elastomer valve in all plastic dispenser is in contact with skin care products and undergoes stress in use.
• Over time some ingredients migrate into the plastic.• This can cause cracking, swelling, flaking, dissolution of the elastomer…
a phenomenon known as:
Environmental Stress Cracking
• Ultimately this can cause pump failure!
Objective
Resolve issues with elastomer valve failure due to compatibility with formulation to allow MWV to expand current Pearl opportunities to non-compatible products
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Chemical Compatibility of Elastomer Valve Approaches
1. Theoretical
• Solubility modeling to predict “bad actors” and develop hypotheses on chemically resistant materials
2. Experimental
• Experimental results are used to inform solubility model improved (or validated) predictions
• Materials selection and chemistry for product development
• Mechanical properties before and after exposure to formulations
• Immersion testing to quantify swelling and mass uptake
• Prototype molding with candidate materials
• Cycle testing – measure force to actuate, dispensed volumes, etc.
Skin Care Formulations
• Skin care formulations are composed of a chemically diverse range of ingredients:• Hydrophilic components• Hydrophobic components• Surfactants• UV absorbers• Fragrances• Preservatives• …Etc.
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Solubility Modeling
Predict product formulation-polymer solubility with theory.
• Polymers resistant to swelling considered good candidates for elastomer valve.
• Solubility relevant across number of packaging platforms (chemical migration, environmental stress cracking, etc.)
How the Model Works
Favorability of mixing predicted by thermodynamic fundamentals (polarity, Van der Waals, hydrogen bonding)
“Like dissolves like”.
If a material is within the Hansen solubility sphere of a given polymer, swelling / environmental stress cracking to be expected
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Experimental Approach• Use chemistry fundamentals to guide in selection of polymers that:
• Provide required mechanical properties
• Process on polymer processing equipment (injection molding)
• Resist Environmental Stress Cracking (ESC)
• Meet cost constraint criteria
• Material properties
• Mass uptake, swelling and solubility provide empirical connections to theory predictions
• Stress-strain relationships measured through Dynamic Mechanical Analysis
• Material properties connected to pump performance through engineering testing
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Conclusions• Science and engineering are applied in the development of packaging
materials to provide desired performance.
• Examples include
• Barrier (O2, H2O, aroma, light, liquid, etc.)
• Chemical resistance
• Sustainability (biopolymers, recyclable polymers, renewable resources, etc.)
• Both package contents and packaging materials must be considered.
• Theory and experiment can be applied together in Research and Development to solve problems.
• Fundamentals are a must!
• Working across teams is critical to success in business setting.
• Communication skills and adaptability, in addition to sound technical foundation, are important!
Thank you!
Questions?
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Pearl – Operation
FillingTop fill
Suction/ChargingEach up stroke decompressesthe bellow creating a depressionthat pulls product into dispenserfrom the container
Bellow
[Priming/]DispensingEach down stroke compressesfluid (air/liquid during priming)in the bellow that becomesdisplaced out by the head spout
ShippingHood protects headfrom being actuated.No liquid/air path open