Ultra-light PET container

Krones has developed an ultra-light PET container that has a weight of 8.8 g for a 500 mL bottle.

It is primarily considerations of environmental protection and cost-cutting that cause the market to demand progressively lighter PET containers. Every tenth of a gram less per bottle means enormous material and cost savings over the course of a year, economises on natural resources and lightens the budget. Especially when standard PET can be used as the preform material.

The 0.5 L container is a conventional bottle with an appealing lightweight design. In the mouthpiece area, particularly, quite a lot of material has been saved. Instead of the customary approximately 3.5 g, the mouthpiece weighs 1.959 g. Weight savings have been boosted by almost dispensing with the neck ring. The wall thickness of 0.1 mm has been downsized by about 20 to 30%, also contributing towards weight reduction.

The filled bottle permits a topload of 33 kg, a crucial criterion for good palletising stability. With its 8.8 g, the bottle provides a weight reduction of 28 to 45% compared to the usual PET containers on the market, plus comparably high savings in terms of material and costs.

The bottle is not a laboratory prototype, but meets all the preconditions for passing through the entire value creation chain to final palletising and storage, before being delivered to the market.