Paper bowls are a common food container used for a wide variety of occasions and purposes. Here are some common uses of paper bowls: 1. Holding food: Paper bowls are suitable for holding a variety of foods such as soups, noodles, meals, fruits, salads, ice creams etc. They provide convenient containers so that food can be easily served, carried and eaten. 2. Take-away and carry-out: Paper bowls are a common packaging choice for take-away and carry-out food. Fast food outlets, restaurants, and take-out services often serve food in paper bowls that are easy for customers to carry and enjoy. Paper bowls can also be insulated and sealed to ensure that the food stays warm and fresh. 3. Buffet or potluck: In a buffet or potluck event, paper bowls are often used for portioning and personalising food. Customers can choose their own food and put it into the paper bowls, which is easy to carry and eat, reducing the amount of cutlery used and cleaning costs. 4. Drinks and beverages: In addition to serving food, paper bowls are also used to serve a variety of beverages and drinks, such as coffee, tea, juice, milkshakes, smoothies and so on. Paper bowls usually have a certain capacity and leak-proof performance, which can be adapted to different beverage needs. 5. Events and parties: Paper bowls are widely used in events such as parties, picnics and camping. They are easy to carry, use and dispose of and do not require extra cleaning work, saving time and energy.

The lamination of paper bowls is a coating added to increase their water resistance and prevent leakage. This coating organises the penetration of liquids into the paper part of the bowl and keeps the bowl structurally stable. Common paper bowl coating materials include PE, PP, PLA and water-based coatings. Among them, PE lamination is not easily degraded; PP lamination is heat-resistant and can be microwaved; PLA can be composted and then degraded; and water-based coating is easily degraded. These materials are water-, oil- and chemical-resistant, enabling paper bowls to hold liquid food and beverages without causing the bowls to soften or break. It is important to note that the lamination materials used in some paper bowls are biodegradable, while others are not. The environmental friendliness of paper bowls depends on the biodegradability of the liner. Therefore, choosing a biodegradable PLA liner and water-based coating will help us to better protect the environment and reduce our impact on the environment.