In our daily life, paper cups have become a common item. Whether it’s a coffee shop, a tea house or a family gathering, we all use paper cups. However, have you ever wondered why these paper cups are guaranteed not to leak? All this is due to a key paper cup raw material – PE coated paper.
PE coated paper roll is a processed paper product covered with a layer of polyethylene film on the base paper. The function of this layer of film is to enhance the waterproof performance of the paper cup, and also improve the heat resistance and strength of the paper cup. So, how does PE coated paper ensure that the paper cup does not leak?
First of all, the material selection of PE coated paper is very important to its waterproof performance. Polyethylene film is a synthetic resin with high molecular weight, which has excellent waterproof performance and can effectively prevent moisture from penetrating into the interior of the paper cup. At the same time, PE coated paper has also been specially treated to make the combination between the film and the paper more tightly, thus avoiding the penetration of water.
Secondly, the processing technology of PE coated paper also plays a key role in its waterproof performance. During the production process, the laminating machine evenly sprays the molten polyethylene film on the base paper through high-pressure air. This processing method forms a tight bond between the film and the paper, thereby ensuring the waterproof performance of the paper cup.
Finally, in order to further ensure that the paper cups are watertight, strict inspection and control are required during the processing of the paper cup fans. For example, the edges of paper cups need to be precisely cut and ground to ensure a good seal. At the same time, the quality of paper cups needs to be randomly inspected during the production process to ensure that they meet quality standards such as water resistance, heat resistance, and strength.
Through its unique material characteristics and professional coating process, PE coated paper has successfully guaranteed the watertight function of the paper cup. Its waterproof performance, durability, safety and recyclability make PE coated paper an ideal choice for widely used in paper cup manufacturing.
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Email: sales3@nnpaperjoy.com
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Post time: Jul-14-2023
