AHP manufacture testing equipment for stretch-wrap films. Stretch wrap films are highly stretchable plastic films that are wrapped around certain items, as often used in the packaging industry. The main function of the film is to improve it’s loading stability for transportation, storage and contamination protection. Stretch-wrap films are commonly made of PE (LLDPE , VLDPE, PVC ….). Critical properties of stretch wrap film are elastic recovery and break strength, but also cling, puncture resistance and optical properties are very important.
Main Stretch Film Wrap Tests are as Below:
- ASTM D-5459: Elastic Recovery, Permanent deformation and Stress Retention
- ASTM D-5458: Peel Cling of Stretch Wrap Film
- ASTM D-5748: Protrusion Puncture Resistance of Stretch Wrap Film
- ASTM D-882: Tensile Properties
- ASTM D-1003: Haze
- ASTM D-1894: COF- Coefficient of Friction
- ASTM D-1922: Propagation Tear Resistance