Straight Wall Double-Layer Cup

In order to expand the application range of paper cups, in 1940, straight-walled double-layer paper cups were introduced to the market. This paper cup is not only easy to carry, but also can be used to hold hot beverages. Later, the manufacturer applied latex to these cups to cover the “paperboard flavor” of the paper and to strengthen the leak-proofness of the paper cups. Single-layer wax-coated cups treated with latex coating are widely used in self-service vending machines to hold hot coffee.