About ten years ago the roller ball underarm deodorant underwent a revolution with the introduction of the "big ball". Which turned out to be a step forward in ease of use for the consumer (better fit to armpit). In order to get the last dregs out of the container we consumers needed to balance the container on its cap.. which is pretty challenging when there is a domed top. As the pack design evolved to improve usability the asymmetrical design made it impossible to balance the domed cap.... a flat on the top of the cap enabled this to be done more easily. As the cost of oil-based plastics has escalated the challenge of a brand innovation team is to contain that packaging cost as well as meeting or exceeding consumer wants. The new design has made the pack usable from start to finish. Also the cap weight has reduced from approx 13 gm to 7 gm... and the pack has a lower weight too. So the What has remained the same or improved (think Design Pyramid and Design Experience)... and the How has enabled the improvement for stakeholders (think Design Space). Are there moments of doubt? well yes. The unscrewing of the cap takes half a turn versus the original 1.5 turns... there is an affective difference in the feel and kinaesthetics which may have a negative appeal.. or it may not matter as it is in the so-what category.
And the development story... could be true but is my interpretation!
3 generations of deodorant pack design.
Asymmetry creeps in!
Flat cap to the rescue!
Well rounded caps don't work when you invert the pack.
Total design thinking addresses many aspects of the pack along the value chain.
Reducing pack size by eliminating the threaded collar and moving it to the roller ball housing.
The pack height reduces due to elimination of a duplicate ring of plastic....
What pack designs have you weighed up today?