Performance of pallet wrap /stretch film

1 Tensile tension is the tensile strength of the film after the elastic elongation. Longitudinal stretching increases, ultimately thinning the film, shortening the width. While longitudinal stretching is beneficial, excessive stretching is often undesirable. As this will thin the film, tearing, and at the same time increasing the tension applied to the package. In this case,

2 Allowable stretches Allowable stretch refers to the maximum tensile strength that can be applied to maintain the necessary properties for a given application. Allowable stretch varies depending on the application. The larger the allowable stretch, the less the amount of film to use and the lower the packaging cost.

3 Adhesion between the self-adhesive films after the contact, in the process of winding and wrapping, the packaging products can be tightened without loosening. Self-adhesive by a variety of external factors. Such as humidity, dust and contaminants. There are two main methods for obtaining self-adhesive films. First, the processing of smooth surface with a glossy film; Second, the use of additives to increase the adhesion of the film surface wetting effect, thereby enhancing the adhesion. In this case,

4 Ductile toughness is the anti-puncture and tear resistance of the comprehensive nature of the film. The tear resistance refers only to the degree of tear resistance of the film after it has been tensioned and pierced. The risk of tearing must be horizontal, ie perpendicular to the direction of machine operation, since tearing in this direction will loosen the package, and the package will remain secure even if it is torn longitudinally. In this case,

Performance of pallet wrap /stretch film