The paper cups currently on the market are generally made of single-layer paper in terms of structural design. Generally speaking, the strength of paper cups is low. The following editor will introduce the function of double-layer paper cups.
Single-layer paper cups are a kind of disposable paper cups, also known as single-sided coated paper cups, that is, the inner layer of the paper cup has a smooth pe-coated layer. Single-layer cups are generally used to hold drinking water, which is convenient for people to drink. The raw materials of the house are food grade wood pulp paper + food grade PE film.
As the name suggests, double-layer paper cups mean that the paper cups are double-layered and have two layers. The quality of double-layer paper cups is better than that of single-layer paper cups. The service life of double-layer paper cups is also longer than that of single-layer paper cups. It can also be used to hold hot beverages such as hot coffee.
In order to expand the application range of paper cups, a straight-walled double-layer paper cup was introduced in 1940. These paper cups are not only portable, but also hold hot beverages. Later, manufacturers coated latex on these paper cups to cover up the taste of paper cups made of paper cups and enhance the leak resistance of paper cups. Latex-coated single-layer waxed cups are widely used to hold hot coffee. .
The double-layer paper cup includes a base and a double-layer paper cup body composed of an inner layer paper cup body and an outer layer paper cup body. The inner surface or outer surface of each layer of paper cups is provided with uneven reinforcing ribs, and the surface formed by the uneven reinforcing ribs is a concave-convex surface, and the inner layer paper cup body and the outer layer paper cup body are hermetically sealed. interdependent.
