double card heat seal

Spout attachment trapped in a blister

A trapped blister is the packaging format selected by Park City, UT-based Choomee Inc. for its Sip’n Soft Top product.

Introduced late last year, this innovative product is a soft, chewy silicone that fits over the hard plastic spout found on many pouched products aimed at children who are transitioning from liquids to solid foods. It greatly improves mouth feel and also provides a convenient reclosure feature.

Choomee has the Sip’n products injection molded in China and calls on contract packagers to assemble the product. The products is sealed by a heat sealing machine which traps a blister thermoformed of RPET between two pieces of 20-pt SBS. The die-cut facing card goes into the cavities of the machine first. When the blister is placed into this facing card, it already has two Sip’n Soft Top products in it. Operators then put the back card into the cavity, and after the cavity runs through a heat and compression station, out comes the two products trapped in their RPET blister between facing and backing paperboard cards.


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Two-count blister packs for ‘smart pills’

Tucson-based Brainiac Supplements LLC wanted to market its Study Buddy nutrient-based study aid capsules in high-impact packaging. The company concluded that two-count carded blister packs offered a more attractive option than the flexible pouches it had been using.

First a flanged two-cavity blister is thermoformed from PVC sheet, filled with one study aid capsule per cavity, and heat-seal lidded with aluminum foil. The filled and lidded blister packs are then trapped between two blister cards in a second operation. A glossy UV finish on the card stock helps create the optimal in-store impact that Braniac was looking for.

The cards are 0.21-pt SBS and are printed via a four-color process that also incorporates a UV varnish to provide a high-gloss finish. The packs stand upright in shelf display cartons, delivering high visibility at retail venues such as college book stores and convenience stores.

Brainiac has enjoyed sales increases since the new packaging was introduced. Tyler Johansen, CEO of Brainiac Supplements, says,

“We chose to partner with a contract packaging specialist, because of their ability to create custom packaging that would more accurately reflect our brand. We couldn’t be more pleased in terms of meeting design deadlines and rendering the packaging we wanted.”


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