The UV resistance of pp woven bags can first delay the aging of their own materials, thereby providing continuous and stable protection for items stored in the open air. Under long-term exposure to sunlight, ordinary plastic materials are prone to degradation, becoming fragile and easy to break, and can no longer serve as a wrapping material. However, the molecular structure of pp woven bags with UV resistance is not easily destroyed by UV rays, and they can maintain good toughness and strength in the open air environment, avoiding exposure of items to the external environment due to their own damage, and ensuring the integrity of the packaging.
This UV resistance is particularly important for items that are easily affected by light and are stored in the open air. Many items, such as fertilizers and feed, will deteriorate due to UV radiation when exposed to sunlight for a long time, affecting the use effect. The UV resistance of pp woven bags can effectively block the UV rays in the sun from penetrating the bag body, reduce the direct exposure of UV rays to the internal items, create a relatively stable light-proof environment for the items, delay their deterioration rate, and ensure the original quality of the items.
For metal products or electronic components stored in the open air, the UV resistance of pp woven bags can indirectly protect them from moisture erosion. In an open-air environment, sunlight during the day increases the bag temperature, and the temperature drops at night, which is prone to condensation. If the pp woven bag is aged and damaged due to ultraviolet radiation, the condensation will directly contact the internal items, causing the metal to rust and the electronic components to be damaged by moisture. Woven bags with strong UV resistance can maintain the integrity of the structure, block the penetration of condensation water, and protect the items from moisture.
UV resistance can also maintain the color stability of the pp woven bag, indirectly improving the identification protection of the items. Items stacked in the open air are often classified and identified by the color of the woven bags. Ordinary woven bags will gradually fade under ultraviolet radiation, affecting the classification efficiency. Woven bags with UV resistance can maintain their original color for a long time, making the classification identification of items clear and identifiable, making it convenient for managers to identify and organize, reducing management confusion caused by unclear identification, and indirectly ensuring the orderly storage of items.
For items that need to be stacked in the open air for a long time, the UV resistance of the pp woven bag can reduce the frequency of packaging replacement and reduce interference with items. If the woven bag is damaged due to excessive UV aging, the packaging needs to be replaced frequently, which may cause bumps and handling losses to the items during this process. Woven bags with strong UV resistance have a longer service life, can maintain packaging functions for a longer period of time, reduce the number of replacements, and avoid unnecessary damage to items stacked in the open air due to frequent operations.
This ability can also protect the appearance of items stacked in the open air from damage. Some items, such as cloth and paper, will change color and become brittle due to UV radiation when exposed to the sun for a long time, affecting the appearance and performance. The UV resistance of pp woven bags can act like a barrier to block the direct effect of UV rays on the internal items, so that the items can still maintain a good appearance during open-air storage, reducing the value reduction caused by appearance damage.
In addition, the UV resistance of pp woven bags has a positive effect on the overall stability of bulk items stacked in the open air. Bulk items usually require multiple woven bags for combined packaging. If some of the woven bags are damaged due to UV aging, the overall stacking structure will be unbalanced, which may cause safety accidents such as collapse. Woven bags with strong UV resistance can maintain consistent strength and toughness, ensure that each packaging unit can play a stable role, maintain the overall stability of bulk stacking, and ensure storage safety.
