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DuPont Packaging White Papers

Index of packaging white papers related to processing, trends and overcoming challenges.

For Faster, Lower-Cost Package Development,
Let's Collaborate

Aldo Tavarez, Technical Consultant, and
Amit Sachdeva, Market Segment Leader

Working with DuPont gives you access to unique capabilities and packaging expertise that can save time and money in reaching performance, cost and sustainability goals.  We’re geared up to design, make and optimize application-focused materials and to design, prototype and test packaging structures and packages. To work on your projects, we can deploy an array of computer modeling tools, in-house pilot-scale polymer and compounding equipment, state-of the art extrusion, coextrusion and extrusion-coating lines, thermoforming and form-fill-seal machinery, a full gamut of testing facilities and a global team of packaging experts and scientists. » For Faster, Lower-Cost Package Development, Let's Collaborate
Tools for Optimizing Flexible Packaging
Dr. Barry Morris
Senior Technology Associate

DuPont has developed a number of computer modeling and simulation tools to aid in optimizing package design and the manufacturing process.  This paper focuses on three DuPont tools: the Sealant Selector, Sealant Value Estimator (SaVE), and a tool for downgauging and life cycle analysis. » Tools for Optimizing Flexible Packaging
Easing Your Way to Reliable Peelable Seals
Diane Hahm
Technical Consultant

This paper can help you better understand and deal with the challenges of designing and making easy opening packages. It defines peelable seals, describes separation mechanisms and discusses considerations in choosing a sealant. A major part of it outlines the extensive range of materials DuPont offers for peelable seals and discusses how they meet different requirements for various kinds of packages and product contents. » Easing Your Way to Reliable Peelable Seals
Bonding "Unjoinable" Polymers
I Hwa Lee
Technical Fellow

The package must perform on the packager’s filling lines, as it moves through distribution, on the store shelf and in the consumer’s hands. The diverse requirements throughout the value chain can be met by using multilayer structures containing a variety of polymers to perform different functions or combinations of functions.To hold incompatible polymers together, DuPont has developed a variety of solutions to adhesion needs. Most of them are part of the DuPont™ Bynel® family of extrudable adhesive resins. Other DuPont products such as DuPont™ Surlyn® ionomer, DuPont™ Nucrel® acid copolymers and DuPont™ Entira™ coat resins can also act as bonding agents. » Bonding "Unjoinable" Polymers
Enhancing Package Performance, Value and Sustainability with Modifiers
Jose M. Torradas
Senior Technology Consultant

Most people in the packaging industry recognize DuPont as a resource for polymers that function on their own aspackage constituents. Many packaging pros are unaware, however, that our materials can modify other polymers to enhance package performance, sustainability and affordability.The DuPont offering in property enhancers is quite extensive. To give you a flavor of their value, this paper provides examples to illustrate how they improve package performance, sustainability and affordability. » Enhancing Package Performance, Value and Sustainability with Modifiers
Taking the Next Step to Reduce Flexible Packaging Waste and Cost
Bernard Rioux, Regional Marketing & Development Manager
DuPont Packaging

Manufacturers of packaged goods everywhere face two constant challenges. One is to reduce their environmental footprint to the minimum. The other is to cut costs. And they must meet both challenges while pleasing customers with tough, attractive packages that protect and help sell their product.

DuPont has recently promoted stiffer and tougher grades of DuPont™ Surlyn® ionomer resin that can give your packaging that “different something." » Reducing flexible packaging waste and cost
Sure Ways to Reduce Package Sealing Failure
Dr. Barry A. Morris, Senior Scientist
DuPont Packaging

What makes a successful package? First, it must deliver its contents to the user in perfect condition. In order to do so, it’s crucial to avoid seal failure and the leakers that result from it. » Learn about other key requirements for a successful package.
Easy-Open Lidding: Making It Work Every Time
Terry Kendig, Senior Scientist
DuPont Packaging

The challenge for the maker of consumer packaged goods and for packaging converters is to make sure that easy-open lidding not only peels readily but also seals effectively. Leakers wreak havoc on the cost of operating packaging lines. And when leakers manage to get out the door, the consequences are bad for distributors, retailers and consumer loyalty. » Learn how to make easy-open lidding work every time.
Controlling Packaging Costs in Food Manufacturing: Keys to Selecting the Proper Sealant
Dr. Barry A. Morris, Senior Scientist
DuPont Packaging

Throughout the entire value chain, from farm and field to table, the grocery business operates on extremely tight margins. Those margins have gotten even tighter in recent years due to two pressures. Consumers want convenience foods that demand sophisticated packaging solutions in order to retain their freshness—yet they want to buy those foods at a moderate price point. » Controlling packaging costs
Surlyn® and Nucrel® Tested for Seasoning Sachet
Masanobu Sato of Mitsui DuPont Japan

Seasoning powders, by their very nature, present challenges to packaged goods manufacturers. The small sachets must preserve the product’s freshness and flavor, resist puncturing and tearing during the manufacturing and shipping process, and seal through powdery particles. » Sachet pinhole resistance
The Contemporary Meaning of Food Freshness
Dr. Donna Visioli
DuPont Packaging

Ever since the days when humankind scratched out a precarious existence as hunter/gatherers, people have looked for ways to extend the freshness of food.

More than 2000 years ago, the Chinese first developed flexible packaging to wrap fresh foods, using sheets of treated mulberry bark. » Contemporary meaning of food freshness
The Influence of Sealant Modulus on the Bending Stiffness of Multilayer Films
Barry A. Morris, Senior Scientist
DuPont Packaging

John D. VanSant, DuPont Senior Technical Specialist
DuPont Packaging

A computer model was developed for predicting bending stiffness of a multilayer packaging film or sheet.  The model shows that in many packaging applications where a rigid barrier or protective material (e.g., foil, EVOH, nylon, HDPE, or OPET) is combined with a softer sealant material, the location and modulus of the sealant can have a disproportionate influence on the bending stiffness of the structure. Ionomers, with their unique combination of high stiffness and excellent sealant properties, are found to provide greater versatility in downgauging than polyolefin sealants when trying to maintain or increase bending stiffness. » Sealant modulus white paper
Sealing in Brand Equity with Hot Tack
James R. de Garavilla, DuPont Packaging

 If you think about it, everyone in the packaging industry contributes significantly to the perceived value of a consumer brand, not merely the graphic designers and brand managers who determine names and logos. Other things, like unreliable heat-seal performance, can jeopardize a brand’s equity, its most important asset. Let’s examine how. » Sealing hot tack discussion