Method for producing plastic foil - involves high proportion of biologically degradable components contg. starch

摘要

During or in direct connection with the extrusion of the foil the constituents are enriched with a polar, softening fluid comprising a mono-to trivalent alcohol or water. The foil in the hot state is exposted to a fluid mist, and in the roller application mechanism is activated with water vapour. The moistened foil strip is then wound and packed in a steam-tight manner. USE/ADVANTAGE - To produce a plastic foil with a high content of bio-degradable material.