SML developed new formulations to manufacture high-quality silage film on its cast stretch film lines for bale wrapping. Silage films, typically made from blown films, preserve bales of silage, hay and maize. Wrapped around the bales, it prevents unwanted fermentation processes and maintains the nutritional value of the contents. To ensure easy bale wrapping and proper protection throughout the storage period, the quality requirements of these films are relatively high.
Compared with the manufacturing of blown silage film, this new approach offers some key advantages: higher output capacities, significantly lower production costs and the possibility to optimize the relevant film properties. Cast film can also achieve the right dart impact, cling level and oxygen permeability more easily than with blown film.