ECSIN presented, in late September 2017 at the Istituto Italiano Imballaggi in Milan, different practical aspects relevant for companies, linked to the application of nanotechnologies in packaging, mainly for food and cosmetics. The topics included functionality and regulations, physicochemical characterization, and sustainability. An extract of the presentations was published in three parts on the Magazine "the pcMAG", of which this is the first one. The article, in Italian, presents functionalities and regulations, and can be seen here.