On Apr 24, 2014, at 9:26, Robert J. Lang <[email protected]> wrote:
> How about a eco-friendly foldable paper food-leftover container that you > can bring with you to a restaurant for when you don't want to use the > restaurant's non-eco-friendly styrofoam take-out containers? Design > requirements: it must fold flat so you can always have one in your pocket > or purse, it needs to be leak-proof, and of course, it has to make the > other diners jealous and awestruck. What kind of material could be used to make that leak-proof eco friendly container ? Most papers would not be leak-proof and eco-friendly means not using plastic (coated) materials. Jean-Christophe Helary
