Method for producing patterned metallic coatings
A method for producing patterned metallic coatings includes an initiator composition having at least one active substance being added to a substrate. A precursor composition including at least one precursor compound for a metallic layer is applied to the initiator composition coating. A metallic layer is then deposited by the active substance. At least one composition is applied as an emulsion in order to obtain a patterning of the resultant metallic layer.
1. A method for producing structured metallic coatings, comprising the following steps:
a) application of an initiator composition comprising at least one active substance to a substrate, wherein the initiator composition comprises a Pickering emulsion;
b) application of a precursor composition comprising at least one precursor compound for a metal layer to the substrate; and
c) deposition of a metal layer of the precursor composition by the active substance of the initiator composition;
wherein at least one of the compositions in step a) and/or step b) comprises an emulsion.
2. The method as claimed in claim 1 , the active substance comprises reducing groups or precursors thereof or a photo catalytically active inorganic substance.
3. The method as claimed in claim 1 , wherein the active substance comprises ZnO or TiO 2 .
4. The method as claimed in claim 3 , wherein the active substance comprises nanoscale particles of ZnO or TiO 2 .
5. The method as claimed in claim 4 , wherein the particles are surface-modified.
6. The method as claimed in claim 1 , wherein a content of nanoparticles in the initiator composition is more than 0.1% by weight.
7. The method as claimed in claim 1 , further comprising a drying carried out between step a) and step b).