Method of cleaning the surface of a material coated with an organic substance and generator and device for carrying out said method

A system for implementing a process, comprising:

• grounded running means for making said strip run;
• a series of electrodes that are covered with a dielectric and are placed facing that surface of said strip to be treated, these electrodes being connected to a generator delivering pulses at a frequency of 1 to 200 kHz;
• gas supply means placed close to the surface of the strip;
• and
• means for extracting the gases resulting from the decomposition of the organic substance coating the strip, the process comprising:
• introducing said material into a treatment zone supplied with an oxygen-containing gas stream;
• grounding said material and generating a plasma by imposing an electric field between the surface of said material and at least one electrode covered with a dielectric;
• wherein said electric field is pulsed and comprises a succession of positive and negative voltage pulses with respect to said material, a maximum voltage of the positive pulses U+ being greater than an arc striking voltage Ua and a maximum voltage of the negative pulses U− being, in absolute value, less than the striking voltage Ua,
• wherein the material is in the form of a running strip, and the various steps of the process are carried out continuously by means of installations placed in succession along the path of the running strip.