Worldwide, each year, 250 billion of cups are thrown away and end up in landfill or are burned. The recyclage of these cups is not effectuate for many reasons, first because they are not designed as recycable cups from the beginning, second because user and brands don't play correctly their role in the sorting of these cups and mainly because even if these cups were proprely sorted, it's still a difficult process to separate the plastic liner from the carboard (only a few companies are providing this service).
The idea of the project is to make possible the recycling of the fiber cups by simply design the plastic liner as an additionnal component of the object. During the use, this additionnal liner ensure the sealing of the cup. At the end of the use, it's simply removed by pulling on it off.