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Packaging

Food Packaging

Beyond plastics

By Debra Schug
Dow SEALUTION peelable-seal polymers
Dow SEALUTION peelable-seal polymers offer consistency and versatility to meet the growing demand for packaging that offers consumer convenience.

Dow RETAIN polymer modifiers
Dow RETAIN polymer modifiers are resin compatibilizers that help give film scrap a second chance at life.

Dow OPULUX matte optical
Dow OPULUX matte optical finishes deliver a distinctive look to packages. Source: Dow.

Dow SEALUTION peelable-seal polymers
Dow RETAIN polymer modifiers
Dow OPULUX matte optical
February 5, 2015
The Dow Chemical Company is using its global connections to address the food and beverage market’s needs by developing new packaging concepts at its Pack Studios headquartered in Houston.

“The idea of Pack Studios is to collaborate with the market chain,” says Apurva Shah, market development manager for Dow food and specialty packaging.

Dow is currently driving innovations in three main areas: sustainability, consumer convenience and shelf appeal. The three products the company introduced at PACK EXPO 2014 are meant to exemplify each area. To address sustainability, Dow debuted RETAIN polymer modifiers—a portfolio of compatibilizers that improve the ease of recycling post-industrial barrier films without compromising performance or aesthetics. Typically, millions of pounds of barrier film are wasted during the manufacturing process, but now, that scrap has a second chance. Based on a reactive ultra-low viscosity, RETAIN polymer modifiers allow the creation of pelletized barrier films that contain materials like ethylene vinyl alcohol (EVOH) or polyamide (PA) to be more evenly dispersed into a polyolefin matrix.

“The reuse of other control films have led to some issues with gels, optical problems and weak spots in the film, which can be catastrophic,” says Lamy Chopin, application technology leader for Dow food and specialty packaging. However, the RETAIN technology is helping to make packages clearer, maintain mechanical properties and significantly reduce gels in films produced from barrier film recycle streams.

To increase consumer convenience in packaging, Dow has expanded its SEALUTION peel polymer line with the introduction of its 220 version. The polyolefin-based, single-pellet polymer can seal to both polypropylene (PP) and polyethylene (PE) to deliver a broad, easy-to-peel seal window with low, consistent peel force.

“Easy-open packaging has gone from a value-add to a consumer expectation,” says Shah. “But it has to be strong enough to survive the value chain.” SEALUTION 220 polymer provides improved clarity, higher output rates and simpler processing by eliminating the blending required for conventional peelable-seal solutions. It is also designed for low peel-force application, such as lamination films and stand-up and pillow pouches; flexible forming webs; and lid stock for PP and PE trays for meats and cheeses.

For greater shelf appeal, Dow introduced OPULUX matte optical finishes for flexible packaging. Made of highly engineered, uniform acrylic beads with an acrylic-based carrier emulsion technology, the coating gives the plastic a more organic look.

“The finishes were designed with grocery store lighting in mind, which creates a lot of glare,” says Shah. “This product line avoids that, creating a luxury feel.”  

For more information: Tori Unger, 312-648-6700, tunger@gibbs-soell.com, www.dow.com/packaging.

KEYWORDS: films flexible packaging PACK EXPO Supply Chain

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Debra schug 200px

Debra Schug was Editor-in-Chief of Food Engineering. She began her media career over a decade ago writing and producing broadcast news for both television and radio at the local and national level. She spent many years as the managing editor for two trade magazines in the oil industry and the research editor for an annual petroleum report. She has a master’s degree in journalism and mass communication from Iowa State University.

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Dow SEALUTION peelable-seal polymers offer consistency and versatility to meet the growing demand for packaging that offers consumer convenience.
Dow RETAIN polymer modifiers are resin compatibilizers that help give film scrap a second chance at life.
Dow OPULUX matte optical finishes deliver a distinctive look to packages. Source: Dow.

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