Moisture damage cases-household appliances suffered from container rain damage

In the first half of 2018, when the refrigerator and washing machine products sent by Hisense to the American market arrived at the customer's warehouse and the containers were opened to unload, it was found that the product cartons were quite wet, accounting for 20%~30%. This kind of product is rated as Class A or Class B defect by the customer, and the customer claims. Below figures shows the photos of the wet state of the product packaging carton and the photos of condensation of water in the containers.

1. Problem analysis and troubleshooting

The reason for damp products in containers may be from product packaging or internal environment of container cabinets, but the root cause is that container rain occurs in the process of freight logistics, perhaps more than once, which leads to damp problems.

Container rain means that in the process of container ocean transportation or storage, when container cabinets experience high and low temperature differences in environmental climate or strong diurnal temperature differences, coupled with high humidity in the air, the relative humidity may reach more than 95%, the water vapor contained in the air condenses into water droplets or water droplets, when the amount of water droplets or water droplets in the container cabinet exceeds 1 kg, It is easy to produce the phenomenon of container rain.

By observing the damp condition of the above refrigerators and washing machines after their arrival at the port, as well as the water droplets on the top and side of the container, it is preliminarily confirmed that the wet damage caused by the rain of the container.

2. Solution

Use high absorptive calcium chloride desiccants inside the container to absorb excessive moisture in the air. 1000g Container desiccant strip is added around the container cabinet to absorb the moisture inside the container cabinet. Before packing products in cartons, add small packets of desiccant to absorb moisture inside product packages. It is expected that container rain can be effectively improved by starting from the product itself and the surrounding environment at the same time.

3. Conclusion

This paper proposes a solution to the problem of container rain in the export of household appliances, which has been proved to be effective. The solution can not only be promoted and expanded in the export of household appliances, but also be applied to all kinds of products exported by Marine containers.