How To Achieve The Effect Of Waterproof And Oilproof Paper Boxes

The paper lunch box has a wide range of applications. We must know its characteristics before using it, so that we can better use it. So how can disposable paper lunch boxes achieve waterproof and oil-proof effect? In fact, this is also the question that everyone is asking.
The answer is that the paper lunch box will be added with certain food-grade additives, so it generally has a waterproof agent of 1.0% - 2.5% and an oil resistant agent of 0.5% - 0.8%, which can achieve the effect of water and oil resistance. And its test is generally 100 ℃ water, 120 ℃ oil, and the test time is 30 minutes; For special requirements, the oil temperature test time can be extended.
There are two main solutions for paper lunch boxes. One method is to coat the paper surface with continuous and dense organic polymer film (coating). Coating materials include polyacrylate, polyethylene, polyvinyl alcohol, carboxymethyl cellulose, etc. The safety risk of paper tableware coated with anti-oil film lies in the coating material. The polymer film itself is not oil-resistant, and grease can still be spread on the surface of the film.