Paper bowl

The paper bowl is a kind of paper container made by mechanical processing and bonding of the base paper (white cardboard) made of chemical wood pulp, and its appearance is bowl-shaped. Waxed paper cups for frozen food, can hold ice cream, jam and butter, etc. Paper cups for hot drinks are coated with plastic, resistant to temperatures above 90°C, and can even bloom with water. The characteristics of paper bowls are safe, hygienic, lightweight and convenient. It can be used in public places, restaurants, and restaurants, and is a one-time item. Since the advent of paper bowls, it has quickly become the most viable green tableware in the 21st century. Internationally renowned fast food chains such as McDonald's, KFC, Coca-Cola, Pepsi and various instant noodle products have adopted disposable paper bowls.

The first hygienic feature is the composition of the inner wall of the paper bowl. The reason why the paper bowl can hold water is because the inner wall of the paper bowl is coated with a layer of polyethylene water barrier film, but if the selected material is not good or the craftsmanship is not good enough. This substance may be oxidized to its volatile carbonyl compound. This substance has a strange smell, and long-term intake of this substance is very harmful, especially some small factories are still using the prohibited recycled polyethylene water barrier film; The second hygienic property of paper bowls is its degradability. An industry insider said that paper bowls not only consume resources, but also impose a great burden on the environment. Moreover, due to the convenience of paper bowls, some people throw them away after use, which not only destroys the appearance of the city, but also brings great pressure to the sanitation work. Therefore, when choosing paper bowls, we must choose paper bowls made of degradable materials, and dispose of them properly after use.

A paper cup is a disposable cup made out of paper and often lined or coated with plastic or wax to prevent liquid from leaking out or soaking through the paper. It may be made of recycled paper and is widely used around the world. The base paper for paper cups is called "cup board", and is made on special multi-ply paper machines. It has a barrier coating for waterproofing. The paper needs high stiffness and strong wet sizing. The cup board grade has a special design for the cup manufacturing processes. The mouth roll forming process requires good elongation properties of the board and the plastic coating. A well formed mouth roll provides stiffness and handling properties in the cup. The basis weights of the cup boards are 170–350 g/m2. To meet hygiene requirements, paper cups are generally manufactured from virgin (non-recycled) materials. The one exception to this is when the paper cup features an extra insulating layer for heat retention, which never comes into contact with the beverage, such as a corrugated layer wrapped around a single-wall cup.