What are the moisture-proof methods for cartons?

Once the carton is immersed in water, it will lose its original performance, and the packaging work cannot be continued. Therefore, we are very careful not to let the carton get water. In addition, it is also very important to stop the moisture-proof treatment of the carton itself.

In a humid environment like summer, even if the carton is placed in the center away from the water source, the carton will be soaked due to the humid air in the air, so that the strength and bursting resistance will be greatly reduced, so the carton itself should be moisture-proof. Very important. Generally speaking, the moisture-proof treatment of cartons is to apply a layer of waterproofing agent on the outside of the carton. This treatment method is also divided into temporary waterproofing and long-term waterproofing.

Temporary waterproofing is to apply a layer of wax emulsion on the surface of the carton, so that when water droplets fall on the carton, it will not penetrate but slide down, which constitutes a good waterproof effect, but because the wax has poor adhesion, it is very It is easy to fall off, so it will fail after a period of time, so this waterproof effect is called temporary waterproof.

Long-term waterproofing is to coat the carton with a layer of waterproofing agent containing rosin derivatives or carboxylated polymer emulsion. This substance is compatible with wax and can be firmly attached to the carton without failure for a long time. for a long-lasting waterproof effect.

It is common for cartons to get wet, but there are several ways to prevent cartons from getting wet. When producing and processing cartons, apply moisture-proof oil or water repellent to the cartons, so that the processed cartons will improve their own strength and achieve the purpose of moisture-proof. .