Vitalis PET bottle
The spiral growth nature of trees like the Scots pine inspired Vitalis' water bottle design. / Anita Gould / License
PET bottle that uses less material
In 2009, Unicer, Vitalis' brand owner, challenged Logoplaste Innovation Lab to create a new range of PET bottles with an exclusive design that would reduce Unicer's environmental impact while enhancing its emotional link with consumers. The goal was to develop the lightest PET water bottle on the market that would still fit existing industrial filling lines.
Unicer now exports Vitalis to a wide range number of regions in Western Europe, Africa, Latin America, United States, and Canada. The new bottles play an active role in the consolidation of both brand identity and sustainability strategies of Vitalis.
Based on the natural model of spiral growth, the team developed a new design for the structure of the bottle's main body, creating helical structures that make the bottle more durable without adding extra weight. To protect the bottle from pressure under compression, impact, or shear forces, the inclination angles, thickness, and depth of the helical structures vary. They vary according to the amount of vertical and horizontal strength needed at a certain surface curvature of the bottle.
Finite Element Analysis simulations demonstrated that the new structures were, in fact, more effective in achieving the reduced weight goal than traditional horizontal structures. In the end, Logoplaste Innovation Lab was able to not only create a new exclusive bottle design, tightly linked to Vitalis' brand values, but simultaneously developed the lightest PET bottle on the market.