German caps and closure maker Bericap GmbH & Co. KG will roll out a new closure size at the Drinktec conference, Sept. 16-20 in Munich — 33-millimeter closures for hot fill.
The new 33mm closures come in a flat-screw and a push-pull sport version — which does require any aluminum sealing foil for safe sealing.
Dispensing without sealing foil on the push-pull closures requires the consumer to remove only the upper protective cap and the upper part of the closure.
Both versions have Bericap's DoubleSeal system, which the company claims guarantees a leakproof product and stabilizes the bottle neck through an inner and outer sealing lip during the hot-filling process, even though the neck wall is just 1.5mm thick.
On the 33mm closure, the DoubleSeal has a cut and folded slit band that breaks the first time the bottle is opened.
Bericap of Budenheim, Germany, said the bottleneck and closure on the 33mm closure system can be more than 40 percent lighter than the 38mm system still widely used today.
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