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Kringle tray's a sweet success

Racine Danish Kringles is first to use a thermoformed, E-flute corrugated tray for its baked pastries. Tray delivers strength and environmental and marketing advantages.

RDK now uses a thermoformed corrugated tray with printing on the front liner.
RDK now uses a thermoformed corrugated tray with printing on the front liner.

Racine Danish Kringles® of Racine, WI, a specialty baker of pastries known as kringles, is the first company to use a newly developed thermoformed corrugated tray commercially.

RDK began using the tray for its 22-oz kringles last autumn, according to owner/president Michael Heyer. Measuring 12”x16” and 7/8” deep, the tray replaced an expanded polystyrene predecessor.

The new trays are made by NaturePak (Sheboygan, WI) on proprietary thermoforming equipment designed specifically for corrugated board (see sidebar). NaturePak’s “Corru” tray is 200#-test, E-flute with white linerboard on both sides of the fluting. Both liners on the 42-33-42 board receive a grease-resistant coating that provides a barrier to withstand staining from the high butterfat content in the kringles.

The oval-shaped kringles in their rectangular trays are overwrapped in Cryovac’s (Duncan, SC) D9-40 film before passing through a shrink tunnel. Before overwrapping, a paperboard collar is positioned into the area surrounded by the kringle. The collar extends above the frosted pastry to avoid product damage during downstream storage and distribution.

Search leads to switch

Heyer cites three reasons for RDK’s switch to the corrugated trays: recyclability, graphics and strength. “We changed trays mainly for environmental reasons,” he says. “In the old days, [EPS vendors] would tell you EPS was recyclable. Well, just try to find someone to recycle it.” Heyer believes the corrugated tray is more likely to be thrown into the consumer’s paper recyclables rather than into the regular refuse.

For a small business with a limited advertising budget, the new trays provide another important advantage over EPS trays. “With the new trays, we can have messages direct-printed on them, something that wasn’t possible with the expanded polystyrene,” states Heyer. “Initially, we had the bottom liner printed with our kringle.com Web address. Now we’re changing that so that the top liner, on which the product sits, is printed. That’s the side the consumer sees most often.”

RDK’s owner tells Packaging World that he is leaning toward having both liners direct-printed. He also plans to develop about a half-dozen different messages to use in repeating patterns on the liners.

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