A method for producing a two-layer noble metal mesh on a flat-bed knitting machine, the flat-bed knitting machine comprising a first and a second needle bed (10, 11), the method comprising the steps of - providing at least one noble-metal-containing wire, - providing at least one noble-metal-free support thread, - knitting a first layer (101, 201, 301, 401, 501, 601, 701) of the noble metal mesh on the first needle bed and a second layer of the noble metal mesh on the second needle bed, the first layer (101, 201, 301, 401, 501, 601, 701) comprising the abutting edges S11 and S12 (110, 210, 310, 410, 510, 610, 710) and the second layer comprising the abutting edges S21 and S22 (111, 211, 311, 411, 511, 611, 711 112, 113), the abutting edge S11 at least partially abutting the abutting edge S21 and the abutting edge S12 at least partially abutting the abutting edge S22, - knitting a support mesh (130, 230, 330, 430, 530, 630, 730) on the first and second needle bed (10, 11) using the at least one noble-metal-free support thread, the support mesh (130, 230, 330, 430, 530, 630, 730) comprising an abutting edge SH (120, 220, 320, 420, 520, 620, 720) and an edge KH (121, 221, 321, 421, 521, 621, 721) opposite the abutting edge, the abutting edge SH (120, 220, 320, 420, 520, 620, 720) abutting an abutting edge S11 and S21 of each of the two layers of the noble metal mesh, all of the knitting processes taking place simultaneously, characterized in that the abutting edge SH (120, 220, 320, 420, 520, 620, 720) of the support mesh is connected to the respective abutting edges S11 and S21 of the two layers of the noble metal mesh via at least one knit stitch, and in that the support mesh is knitted with connecting stitches from both needle beds (10, 11) in the knitting rows on which the abutting edge SH (120, 220, 320, 420, 520, 620, 720) of the support mesh is connected to the respective abutting edges of the two layers of the noble metal mesh S11 and S21. - providing at least one noble-metal-containing wire, - providing at least one noble-metal-free support thread, - knitting a first layer (101, 201, 301, 401, 501, 601, 701) of the noble metal mesh on the first needle bed and a second layer of the noble metal mesh on the second needle bed, the first layer (101, 201, 301, 401, 501, 601, 701) comprising the abutting edges S11 and S12 (110, 210, 310, 410, 510, 610, 710) and the second layer comprising the abutting edges S21 and S22 (111, 211, 311, 411, 511, 611, 711 112, 113), the abutting edge S11 at least partially abutting the abutting edge S21 and the abutting edge S12 at least partially abutting the abutting edge S22, - knitting a support mesh (130, 230, 330, 430, 530, 630, 730) on the first and second needle bed (10, 11) using the at least one noble-metal-free support thread, the support mesh (130, 230, 330, 430, 530, 630, 730) comprising an abutting edge SH (120, 220, 320, 420, 520, 620, 720) and an edge KH (121, 221, 321, 421, 521, 621, 721) opposite the abutting edge, the abutting edge SH (120, 220, 320, 420, 520, 620, 720) abutting an abutting edge S11 and S21 of each of the two layers of the noble metal mesh, - knitting a support mesh (130, 230, 330, 430, 530, 630, 730) on the first and second needle bed (10, 11) using the at least one noble-metal-free support thread, the support mesh (130, 230, 330, 430, 530, 630, 730) comprising an abutting edge SH (120, 220, 320, 420, 520, 620, 720) and an edge KH (121, 221, 321, 421, 521, 621, 721) opposite the abutting edge, the abutting edge SH (120, 220, 320, 420, 520, 620, 720) abutting an abutting edge S11 and S21 of each of the two layers of the noble metal mesh, all of the knitting processes taking place simultaneously, characterized in that the abutting edge SH (120, 220, 320, 420, 520, 620, 720) of the support mesh is connected to the respective abutting edges S11 and S21 of the two layers of the noble metal mesh via at least one knit stitch, and in that the support mesh is knitted with connecting stitches from both needle beds (10, 11) in the knitting rows on which the abutting edge SH (120, 220, 320, 420, 520, 620, 720) of the support mesh is connected to the respective abutting edges of the two layers of the noble metal mesh S11 and S21.