With the rapid development of China's economy, disposable paper cups have become essential daily necessities for homes, restaurants, offices, etc. Its changeable shape, bright colors, and not afraid of being beaten, are loved by many people. The paper cups currently on the market are generally made of a single wallpaper in terms of structural design. Generally, paper cups have low strength. After the hot water is filled, the cup body is prone to deformation, and the heat insulation effect is poor and does not slip. The following describes the function of the double wall paper cup.
Single Wall Paper Cup is one of the disposable paper cups, also known as single-sided coated paper cups. It is a single wall cup with a smooth pe-coated layer inside the paper cup, which is generally used to hold drinking water and is convenient for people to drink. The raw materials of the single house are made of food-grade wood pulp paper + food-grade PE film.
The Double Wall Paper Cup, as the name suggests, means that the paper cup is double-walled and has two layers. The quality of the double wall paper cup is better than that of the single wall paper cup. The use time of the double wall paper cup is also longer than the use time of the single wall paper cup. It can also be used to hold hot beverages, such as hot coffee.
In order to expand the application range of paper cups, in 1940, the straight wall double wall paper cup was introduced to the market. This paper cup is not only easy to carry, but also can hold hot beverages. Afterwards, the manufacturer applied latex to these paper cups to cover the taste of the paper cup material and to strengthen the leak-proofness of the paper cups. The single-wall wax-coated cups with latex coating treatment are widely used for holding hot coffee. . The double-walled cup includes a base and a double-walled cup body composed of an inner layer of paper cup body and an outer layer of paper cup body. The inner or outer surface of each layer of paper cup body is provided with uneven reinforcing ribs. The composed surface is a concave-convex surface, and the inner paper cup body and the outer paper cup body are sealed and adhered to each other.