Multilayer co-extrusion Black / White bag, manufactured in different thicknesses and diameters.
This product contains a white exterior, thus reflecting sunlight and reducing extreme high temperatures, and a black interior layer which prevents short IR radiation from entering the bag. Both layers help to maintain a constant temperature, eliminating spikes, and thus increasing the nutritional value of the stored product.

Properties and applications:

  • Developed for the fermentation and storage of animal feed, Greenbag offers more flexibility and advantages than traditional silage applications.
  • Designed to hold fodder, grain, etc and preserve it to feed cattle keeping its original nutritional value.
  • Other uses could be: biogas plants, compost production, industrial by-products storage (grappa production waste, beet pulp,…)



  • Excellent mechanical properties and strong resistance to tearing and impact.
  • Adequate temperatures maintained for optimal fermentation.
  • High efficiency in forage preservation with low loss of nutrients.
  • Hermetically sealed area prevents the growth of aerobic bacteria, moths, and other insects, eliminating the need for chemical treatments (insecticides).
  • The white layer is placed outwards and reflects solar radiation avoiding excessive heating of fodder. This avoids unwanted fermentations.
  • Very low permeability to oxygen. Excellent barrier against water and air, avoiding possible leakage of polluting gases.