| 摘要 |
A method of treating an object involving directly applying, e.g. printing, masking material to a surface, e.g. a metallic surface, of the object to provide a desired pattern of masked and unmasked areas and treating the partially masked surface, e.g. by etching, to remove material, e.g. metallic material, from the unmasked areas. The masking material is preferably applied under computer control by an ink-jet printing head. The etching may suitably comprise chemical etching, electro-chemical etching or pulsed electro-chemical etching. |
