Abstract: A machine for atmospheric plasma treatment of continuous material substrates comprises means for feeding a substrate for moving it along a feed path; at least two electrodes each positioned at one face of the substrate, each electrode facing a respective face of the substrate, a difference in electric potential being applicable across the electrodes for generating an electric discharge; the feed means comprising at least one first roller and one second roller, the first roller and the second roller coinciding with respective electrodes and each acting on a respective face of the substrate.

Abstract: A method for treating a fibre substrate, including the steps of feeding a substrate along a feed path, stretching the substrate longitudinally to reduce the thickness of the substrate to a value less than 1 mm and then treating the substrate with plasma at atmospheric pressure at a treatment station (T) located.

Abstract: A machine for atmospheric plasma treatment of continuous material substrates comprises means for feeding a substrate for moving it along a feed path; at least two electrodes each positioned at one face of the substrate, each electrode facing a respective face of the substrate, a difference in electric potential being applicable across the electrodes for generating an electric discharge; the feed means comprising at least one first roller and one second roller, the first roller and the second roller coinciding with respective electrodes and each acting on a respective face of the substrate.