It is frequently used to secure pallet loads to one another but also may be used for bundling smaller items.
The most common stretch wrap material is linear low-density polyethylene (LLDPE), which is produced by copolymerization of ethylene with alpha-olefins, the most common of which are butene, hexene and octene.
The use of higher alpha-olefins (hexene or octene) gives rise to enhanced stretch film characteristics, particularly in respect of elongation at break and puncture resistance.
There are two methods of producing stretch wrap: Other properties such as break strength, cling, clarity, tear resistance, static discharge, etc.
In pallet unitizing, stretch wrap can have several functions: Making sure boxes stay on the pallet and properly aligned is an important consideration in warehouse distribution, especially as the demands for increased throughput continues to rise.