The good air permeability of pp woven bag is particularly prominent among many packaging materials. The benefits it brings and the role it plays in storing specific items are worth our in-depth understanding.
The good air permeability of pp woven bag is first reflected in the ability to maintain a dry environment for items. When storing some items that are sensitive to humidity, such as grains and seeds, if the packaging material is not airtight, the internal water vapor cannot be dissipated in time, it is easy to breed mold and bacteria, causing the items to mold and deteriorate. The air permeability of pp woven bag is like opening a "breathing window" for the items, allowing air to flow freely inside and outside the bag.
When grains or seeds produce water vapor during storage, these water vapors can be dissipated into the outside air through the gaps in the woven bag, thereby keeping the environment inside the bag relatively dry, greatly reducing the risk of mold and extending the storage period of the items.
For some agricultural products that need to "breathe", the air permeability of pp woven bag is even more important. For example, root vegetables such as potatoes and onions will perform weak respiration during storage, releasing carbon dioxide and water vapor. If the packaging material with too strong sealing is used, carbon dioxide will accumulate in the bag, and the water vapor cannot be discharged, which will cause the vegetables to rot and deteriorate. The air permeability of pp woven bags can allow vegetables to maintain normal breathing during storage, carbon dioxide can be discharged in time, and fresh air can enter the bag, providing a suitable storage environment for vegetables and ensuring the quality and taste of vegetables.
When storing chemical raw materials, the air permeability of pp woven bags can also play a unique role. Some chemical raw materials may produce a small amount of volatile gases during storage. If these gases cannot be dissipated in time, it will not only affect the quality of the raw materials, but also may pose certain safety hazards. The air permeability of pp woven bags allows these volatile gases to be slowly released into the air, avoiding excessive gas concentration in the bag, reducing the possibility of danger, and ensuring the safety of the storage process.
The air permeability of pp woven bags also helps to reduce the generation and accumulation of odors. When storing some items with special smells, such as Chinese medicinal materials and spices, if the packaging is not breathable, the smell of the items will be sealed in the bag, and an unpleasant odor will be generated over time, which may even affect the quality of the items. The pp woven bag with good air permeability can allow the odor molecules to dissipate with the air circulation, keep the air in the bag fresh, reduce the generation of odor, and better preserve the original flavor and quality of the items.
In addition, the pp woven bag with good air permeability can also play a certain role in regulating temperature during storage. In an environment with large temperature changes, if the packaging material is not breathable, the temperature in the bag will rise or fall rapidly with the change of the outside temperature, which may cause damage to some temperature-sensitive items. The air permeability of the pp woven bag allows air to form convection inside and outside the bag. When the outside temperature rises, the hot air in the bag can be dissipated to reduce the temperature in the bag; when the outside temperature drops, the entry of fresh air can also keep the temperature in the bag relatively stable to a certain extent, providing a relatively suitable temperature environment for the items.
The good air permeability of the pp woven bag has many benefits when storing specific items. It can keep items dry and fresh, reduce odor and safety hazards, and regulate temperature to provide a stable and suitable storage environment for items. Therefore, when choosing packaging materials, if you need to store items that require breathability, pp woven bags are undoubtedly a good choice.
