Do we still need moisture prevention in autumn and winter?
After bidding farewell to the damp and rainy summer, we welcome the refreshing golden autumn season. As the saying goes, one autumn rain brings one cold. For most regions, especially in the south, the humidity in autumn cannot be ignored. Due to the inability of cold air to dominate and sustain the southern region, it is easy for cold and warm air to pull back and forth between southern China (Pacific warm air flow) and southwestern China (Indian Ocean warm air flow), forming continuous rainy weather. Therefore, moisture is also very active at this time. Due to the cooling rainfall and variable weather, products are also easily taken advantage of by moisture during production, storage, and transportation,
In addition, autumn also has a return to the southern sky, but it appears for a relatively short period of time. The reason is that in autumn, it is still warm at first, sometimes cold and sometimes hot, and there is a large temperature difference between morning and evening, which can cause walls and floors to become damp again. Of course, this is not called 'returning tide' in autumn, but 'dew', which is actually the same principle as returning to the southern sky, but with a different name. If you forget to close the warehouse doors and windows at night in autumn and winter, you will find dew on the shelves, plastic film on the outer packaging, and the ceiling the next morning. These water droplets will fall onto the products or raw materials, causing them to become damp and seriously affecting product quality. If there is a large temperature difference between day and night, even if doors and windows are closed, the above phenomenon may occur.
In the product transportation process, as the northern hemisphere enters autumn and winter, the southern hemisphere correspondingly enters spring and summer. When goods are transported from low-temperature areas to high-temperature areas, or when the storage environment suddenly changes from cold to hot, the water vapor in the air will accumulate on the surface of the goods
Or it may condense into water on its packaging when it is cold, which is also called sweating of goods.
Therefore, even in autumn and winter, do not neglect moisture-proof work. In addition to controlling temperature and humidity in the production process, attention should also be paid to moisture prevention in the storage of raw materials and products, as well as in the transportation of goods. The amount of desiccant used in product packaging and containers can be adjusted appropriately according to the season