Abstract: The invention relates to a valve-equipped laminated film which can be used for microwave cooking, in the form of a tray or a closed bag. The invention comprises two sheets (3) and (4) which are interconnected by means of food-grade silicon or any other similar gel, said silicon containing a food-grade microbial agent, hydroxybenzoic acid and an ethylene-absorbing agent. According to the invention, a tube is formed at the connection between one area (8) of the upper sheet, which is disposed longitudinally and which is provided with aligned slits (5), and one area (9) of the lower sheet (4), which comprises slits (7) that are incorporated into the strip (9), the upper part of which is connected to the upper sheet (3) using the food-grade silicon.