There are many types of paper cups nowadays, such as Double wall paper cup and custom paper cup.
Disposable toilet paper cups can be used by one person and thrown away when they are used up. They are hygienic and convenient, but such a common cup hides many problems. There are three types of paper cups on the market: the first one is made of white cardboard and cannot contain water and oil. The second is a waxed paper cup. As long as the temperature of the water contained in it exceeds 40°C, the wax will melt and release carcinogenic polycyclic aromatic hydrocarbons. The third type is paper-plastic cups. If the selected materials are not good or the processing technology is not good enough, the pyrolysis changes will occur during the process of melting or applying the polyethylene to the paper cups, resulting in carcinogens. To increase the toughness and rigidity of the cup, a plasticizer is added to the paper cup. If the additive amount is too large or illegal plasticizers are used, the sanitary condition is difficult to guarantee.
So since there is a double wallpaper cup, the existence of a Single wall paper cup is naturally indispensable. Similarly, it is better to use less when possible, take care of the environment, and conserve natural resources.
