The breathable design of pp woven bag allows air to flow naturally between the inside of the bag and the outside world, which is the basis for maintaining the quality of items that need to be ventilated and stored. Many items will release water vapor or gas during storage. For example, grain will breathe and produce moisture during storage. If it cannot be discharged, it will accumulate in the bag, causing the items to get damp. The breathable design allows these water vapor and gas to be discharged through the gaps in the woven bag, while introducing dry air from the outside to keep the air in the bag fresh and reduce the negative impact caused by poor air circulation.
For those items that are prone to mold due to stuffiness, the breathable design plays a key protective role. For example, dry goods, herbs, etc., in a closed environment, high temperature and high humidity will accelerate the growth of mold, causing the items to deteriorate and rot. The breathable structure of pp woven bag allows heat and moisture to be dissipated in time, reduces the temperature and humidity in the bag, and destroys the suitable environment for mold growth, thereby delaying the speed of mold growth of items, extending their storage time, and ensuring that the items remain in good condition during ventilation and storage.
Breathable design is also of great significance for fresh items that need to be ventilated and stored. Fresh products such as vegetables and fruits will still breathe during storage, consuming oxygen and releasing carbon dioxide. If the packaging is not breathable, the accumulation of carbon dioxide in the bag will inhibit its breathing and accelerate decay. The breathability of pp woven bags allows fresh air to enter, replenish oxygen, and discharge carbon dioxide at the same time, maintaining the gas balance in the bag, providing ventilation conditions similar to the natural environment for fresh items, slowing down their aging process and maintaining freshness.
In rainy or humid environments, breathable design can help items that need to be ventilated and stored avoid moisture. Although the humidity of the outside air is high in a humid environment, if the items that need to be ventilated are in a closed state for a long time, the moisture generated by themselves cannot be discharged, but it is more susceptible to moisture. The breathability of pp woven bags allows the moisture in the bag to exchange with the outside air. When the humidity of the outside air is low, it can take away the excess moisture in the bag; even if the humidity outside is high, the reasonable breathable structure can reduce the condensation of moisture in the bag and reduce the possibility of moisture in the items.
For those items that need to emit odors, breathable design can improve the comfort of the storage environment. For example, some chemical raw materials, fertilizers, etc., will release irritating odors during storage. If the packaging is not breathable, the odor will accumulate in the bag, which will not only pollute the surrounding environment, but may also affect other items. The breathable design allows these odors to gradually diffuse out, reducing the odor concentration, keeping the air in the storage area relatively fresh, and reducing the impact on operators and the surrounding environment.
The breathable design can also reduce the agglomeration of items that need to be ventilated for storage. Powdered or granular items, such as feed and fertilizers, are easy to absorb moisture and agglomerate in a humid environment, affecting the use effect. The breathability of pp woven bags helps to keep the bag dry, reduce the adhesion of moisture on the surface of the items, and at the same time remove the locally accumulated moisture through air circulation, prevent the particles from sticking to each other, keep the items loose, and ensure their convenience and effectiveness when used.
In addition, the breathable design is combined with the storage method of the items to improve the overall ventilation efficiency. When multiple pp woven bags are stacked and stored, the breathable design allows air to circulate between bags and between the inside of the bag and the outside world, avoiding the formation of high temperature and high humidity areas in the center of the stack due to poor air circulation. This overall ventilation effect allows each bag of items to be in a relatively suitable storage environment. Regardless of the stacking position, they can all be well ventilated and protected, ensuring the overall quality stability of bulk stored items.
