Method for depositing a metal layer on polyesters

摘要

A method for selective electroless deposition of a metal (Cu, Ni, Au, Ag) onto a polyester substrate, such as poly(ethylene terephthalate) is described. A combination of ultraviolet exposure of wavelengths <220 nm and a pre-treatment step is used to obtain selective electroless deposition. The polyester layer is first irradiated with uv light of wavelengths <220 nm and is then subjected to a pre-plating pre-treatment with a basic solution. After this, the desired metal is deposited by conventional electroless deposition. Substantial deposition will occur only in those areas which were both exposed to the uv light and subjected to the pre-plating treatment.