History of paper cups

The history of paper cups goes through four stages: conic/pleated paper cups the first paper cups were conic, made by hand, glued together, easier to separate, and had to be used as quickly as possible. Later, folding cups were added to the side walls to increase the strength of the side walls and the durability of the cup, but it is difficult to print patterns on these folding surfaces, and the effect is not very good. Waxed Paper Cup in 1932, the first two waxed paper cup came out, its smooth surface can be printed on a variety of exquisite patterns, improve the promotion effect. On the one hand, the wax coating on the paper cup can avoid the direct contact between the drink and the paper material, and can protect the adhesive and enhance the durability of the paper cup; on the other hand, it also increases the thickness of the side wall, so that the strength of the paper cup is greatly enhanced, thus, the paper consumption necessary for manufacturing stronger paper cups is reduced, and the production cost is reduced. As waxed paper cups become containers for cold drinks, people also hope to use a convenient container for hot drinks. However, hot drinks will melt the wax on the inside surface of the cup, adhesive mouth will be separated, so the general wax-coated paper cup is not suitable for holding hot drinks.

Straight-wall double-layer Cup, in order to expand the scope of application, in 1940, straight-wall double-layer Cup was introduced to the market. The paper cup is not only convenient to carry, but also can be used to hold hot drinks. Subsequently, the manufacturers in these cups coated with latex to cover the paper material with the“Cardboard smell” and strengthen the paper cup leakage. Single-layer wax cups coated with latex are widely used in vending machines to hold hot coffee. Coated paper cups, some food companies began to polyethylene coated on cardboard to increase the barrier and sealing of paper packaging. Because the melting point of polyethylene is much higher than that of wax, the new type beverage paper cup coated with polyethylene can be used to hold hot drinks. At the same time, polyethylene coating than the original wax coating smooth, improve the appearance of paper cups. In addition, its processing technology than the use of latex coating method is cheaper and faster.