Patent ID: 7884302

Claim:
An installation for the plasma processing of a continuous material, comprising at least one evacuatable discharge chamber, through which the continuous material is conveyed continuously, a device for setting a gas atmosphere in the at least one discharge chamber, wherein the device for setting a gas atmosphere comprises a prechamber system and a postchamber system, wherein the prechamber system comprises a prechamber divided into subchambers and/or the postchamber system comprises individual postchambers, wherein sluice openings are provided between the subchambers and the postchambers, respectively, wherein the continuous material is guided through the sluice openings and with low friction through the subchambers and postchambers, respectively, wherein the device for setting a gas atmosphere comprises a recovery system wherein gas is recirculated from a first one of the postchambers into a prechamber and/or a second one of the postchambers having a higher pressure level than the first one of the postchambers.