Stretch Wrapping FilmWidely used in packaging various items, wrapping products can tightly adhere to rigid goods and compress soft items. However, with the mixed quality of products on the market, many are substandard. Therefore, it is essential for us to grasp some criteria to differentiate the quality of stretch wrap films.

One, Adhesiveness. Adhesiveness refers to the粘附性 between the stretched stretch wrap after contact, which, during the wrapping process and after packaging, ensures the tightness of the packaged item without loosening. Adhesiveness is affected by various external factors such as humidity, dust, and contaminants, making it an important indicator for assessing its quality.

Two, Tensile Strength. Tensile strength refers to the comprehensive performance of the film's resistance to piercing and tearing. The critical value for tear resistance should be taken horizontally, which is perpendicular to the direction of machine operation, as tearing in this direction will loosen the packaged item. Even if tearing occurs longitudinally, the packaged item can still maintain its integrity.

Three, Elongation. Elongation refers to the ability of the film to stretch after it is subjected to force. The manufacturer of stretch wrap film informs us that high-quality stretch film will elongate slightly after stretching and will have a certain limit.

This is the basis for distinguishing between good and bad quality stretch wrap. Typically, when we differentiate, we can do so based on three aspects: the product's adhesiveness, tensile strength, and elongation. Once these three indicators are up to standard, the quality of the purchased product is also guaranteed. High-quality products can help us improve work efficiency, so learning how to identify product quality is particularly important.