Sidel has developed a new PET bottle base for still drinks that increases stability and bottle rigidness and lowers the weight of the package.
The new StarLite bottle base is suited for water and juices in particular, and can also be used for other still beverages.
Using Sidel’s edge beam and smart disc PET design innovations, the company also claims that the base lowers energy consumption during production.
Groove structure edge beam improves base stiffness, and the smart disc structure reinforces the base to avoid deformation.
The base can be retrofitted into existing bottle designs and shapes. It can also be applied to existing production lines using the company’s accompanying StarLite mould bases.
Tests have revealed that when the bottle is on a pallet, the StarLite design resulted in up to a 30% increase in top-load dent resistance, and up to a 55% rise in side-load resistance.
The bottle also lasted up to 25 days without bottle deformation in 50°C conditions, and under frozen conditions it recorded up to a 50% decrease in base rollout.
The base uses up to 1g less PET for a 0.5l bottle or 2g with the 1.5l format. It is also compatible with nitrogen drop technology, offering the possibility that it could still be made even lighter.
Sidel Packaging & Tooling vice president Vincent Le Guen added: "When combined with Sidel’s other eco-services, we can achieve significant energy and cost savings on new or existing beverage production lines."
Image: Sidel’s new StarLite bottle base shape increases the base resistance and stability. Photo: courtesy of TETRA LAVAL GROUP.