The second hygienic property is the inner wall of the paper bowl. The reason why the paper bowl can hold water is that the inner wall of the paper bowl is coated with a layer of polyethylene water barrier film in the production of the paper bowl. However, if the selected material is not good or the process is not qualified, this substance may be oxidized into carbonyl compounds that are easy to volatilize. This substance has a strange smell, and long-term ingestion of this substance is very harmful. In particular, some small factories still use recycled polyethylene waterproof membrane which is prohibited by decree.
The third hygienic property of the paper bowl is its degradability. An insider said that paper bowls not only cause resource consumption, but also cause a great burden on the environment. Moreover, because of the convenience of paper bowls, some people throw them away after using them, which not only destroys the appearance of the city, but also brings great pressure to the sanitation work. Therefore, when selecting paper bowls, we must choose paper bowls made of degradable materials and properly handle them after use.
