What are the factors affecting the shelf life of cotton baling film

The shelf life of cotton baling film will be affected by many factors. The following are some of the main aspects: 

1. Material properties Cotton baling film of different materials has different chemical stability and physical properties, which will directly affect its shelf life. For example, high-quality polyethylene film has better aging and oxidation resistance, and its shelf life may be longer than that of ordinary films. Some films with additives such as anti-aging agents and antioxidants can delay the aging process to a certain extent and extend the shelf life. 

2. Storage environment Temperature is a key factor. Too high temperature will accelerate the aging and decomposition of the film, while too low temperature may make the film brittle and reduce its flexibility and strength. Generally speaking, the appropriate storage temperature is between 5℃ - 25℃. Humidity also has an important influence. A high humidity environment can easily cause moisture to condense on the surface of the film, causing microbial growth and corroding the film; at the same time, humidity may also affect the performance of additives in the film and accelerate aging. Therefore, the storage environment should be kept dry, and the relative humidity should be preferably between 40% and 60%.

Light is also a factor that cannot be ignored. Long-term exposure to sunlight, especially ultraviolet radiation, will change the molecular structure of the film, resulting in a decrease in its performance. Therefore, cotton baling film should be stored in a light-proof environment.

3. Packaging method
The tightness and protectiveness of the packaging have an impact on the shelf life of the film. If the film is not well packaged during storage, it is susceptible to direct influence from the external environment, such as erosion by dust, water vapor, etc.
Sealed packaging can effectively prevent air, moisture, etc. from contacting the film, reduce the possibility of oxidation and moisture, and thus extend the shelf life.
4. Storage time and method
The longer the storage time, the more obvious the performance of the film will decline. Even in a suitable storage environment, the physical and chemical properties of the film will gradually change over time.
The storage method is also important, such as the stacking method of the film and whether it is squeezed. Unreasonable stacking may cause excessive local stress on the film, deformation, breakage, etc., affecting its performance and shelf life.