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Effervescent tablets go 'Airborne' in tubes

Knight-McDowell Labs’ quest for an alternative to foil packaging for its effervescent tablets led to a rigid, polypropylene injection-molded container.

A rigid primary package guards against breakage and moisture damage.
A rigid primary package guards against breakage and moisture damage.

As a second grade teacher, Victoria Knight-McDowell, founder of Knight-McDowell Labs, Carmel, CA, was constantly catching colds. So she set out to find a natural way to protect herself and others from airborne germs and viruses.

The product she developed, Airborne® Formula, combines herbal extracts with amino acids, antioxidants and electrolytes that are said to deliver significant protection from minor health problems.

Combining the formula into solid form presented a problem for Knight-McDowell. “Conventional pills take hours to assimilate into the bloodstream,” says Knight-McDowell. She turned to a delivery system that’s growing increasingly popular in the world of nutrition supplements: effervescent tablets.

Having finally settled on the delivery system, Knight-McDowell sought packaging that added value to her product. “Airborne’s package was a high priority. We wanted packaging that reflected the quality of our brand, yet was functional,” she says.

Her search led to Süd-Chemie Performance Packaging (Belen, NM), which she presented with a list of packaging requirements. Critical was that the packaging be able to accommodate full-color product descriptions on the exterior. It also had to offer durable protection against tablet breakage and guard against moisture.

After exploring various options, Knight-McDowell began specifying Süd-Chemie’s effervescent-Pak™, an injection-molded polypropylene container and a polyethylene closure with a silica gel adsorbent to trap moisture.

Effervescent tablets are often packed inside heat-sealed foil pouches that are inserted into cartons. Because the company was targeting travelers as an important market, it saw significant drawbacks in foil packaging. First, it doesn’t provide protection against tablet breakage the way a rigid container does. Second, because each tablet is wrapped individually, the small size often prohibits bright, attractive graphics from being printed on the packaging.

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