Device for the packaging of products, particularly of the food type

A method for packaging products, comprising the following steps:

• providing a device comprising:
• a container made of a material that is flexible and substantially impermeable to gases and water vapor, which forms inside the container an accommodation compartment for accommodating products and is provided with at least one passage opening for the introduction and/or evacuation of products into/from said accommodation compartment,
• at least one functional port which is configured to be closed hermetically and is associated with said container in fluid communication with said accommodation compartment,
• at least one monitoring port associated with said container in fluid communication with said accommodation compartment, which is configured to allow a passage of fluid at least from an inside of said accommodation compartment toward the outside, and
• a detection assembly for detecting at least one chemical or physical parameter of the atmosphere within said accommodation compartment,
• wherein said detection assembly comprises a measurement chamber which is associated in fluid communication with said accommodation compartment through said monitoring port and at least one sensor for measuring said at least one parameter associated with said measurement chamber, and
• wherein said detection assembly is provided at least with a sensor for measuring the concentration of an inert gas and with a pressure sensor;
• providing a quantity of products to be packaged,
• introducing said quantity of products in said accommodation compartment through said at least one passage opening,
• sealing said at least one passage opening,
• activating said detection assembly associated with said monitoring port,
• aspirating air that is present inside said accommodation compartment through said at least one functional port until a value of the pressure inside said accommodation compartment, detected by the pressure sensor of said detection assembly, is reached which is at least equal to a pressure threshold value that is desired or set in the electronic collection and processing unit of said assembly,
• introducing said inert gas in said accommodation compartment through said at least one functional port until an inert gas concentration value, measured by the inert gas concentration measurement sensor of said detection assembly, is reached which is at least equal to an inert gas concentration threshold value that is desired or set in the electronic collection and processing unit of said assembly.