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A small problem in life always puzzles people: the toothpaste sometimes drops down after squeezed on the toothbrush due to vibration and gravity, resulting in waste of toothpaste and inconvenience of cleaning.
This design, the Slop-paste, could make a difference through cutting the opening part of the tube into a 45º angle. By this way, a force towards the toothbrush could be added, and thus the toothpaste could be pressed and fixed. Besides, the action of squeezing and cutting off the toothpaste would correspond more to ergonomics principles.
Huazhong University of Sci. & Tech.
Liu Xu Wei Shuaili Chen Tianjian Zhang Jialei