Abstract: A printing method and apparatus for coloring an article of aluminum or aluminums alloys, said article comprising a surface formed by an open pore oxide layer, and an article printed therewith. In order to achieve a high quality printing image that exhibits a high resolution, wherein the effects of color migration and bleeding of the deposited ink compositions are reduced, the method comprises the steps of mounting said article on an inkjet printing apparatus; printing a bottom printing layer on said surface according to predetermined pixel information and at a predetermined ink deposition rate for each pixel; successively printing at least two upper printing layers on said surface, wherein on each upper printing layer the same pixel information is printed as on the bottom printing layer and the ink deposition rate for each pixel is adjusted if required; and heating said article for fixing the resulting printing image on said surface.

Abstract: A printing method and apparatus for coloring an article of aluminium or aluminiums alloys, said article comprising a surface formed by an open pore oxide layer, and an article printed therewith. In order to achieve a high quality printing image that exibits a high resolution, wherein the effects of color migration and bleeding of the deposited ink compositions are reduced, the method comprises the steps of mounting said article on an inkjet printing apparatus; printing a bottom printing layer on said surface according to predetermined pixel information and at a predetermined ink deposition rate for each pixel; successively printing at least two upper printing layers on said surface, wherein on each upper printing layer the same pixel information is printed as on the bottom printing layer and the ink deposition rate for each pixel is adjusted if required; and heating said article for fixing the resulting printing image on said surface.

Abstract: A monolithic piezoelectric key structure having a piezoelectric layer adherently connected between two conductive areas. The piezoelectric layer is applied as a fluid on the base conductive area and transformed into a coherent solid adhering to the base conductive area. The other conductive area is adherently formed on the piezoelectric layer. The monolithic structure is polarized.

Abstract: An electric razor is disclosed which comprises a housing having a shearing head, a shearing comb disposed within the head and having openings permitting hair protruding from a surface to enter into an interior of the comb, and a blade beam carrier which mounts an elongated blade beam and which is oscillated relative to the comb for severing hair extending through the comb openings. A connecting member driven by an electric motor engages and oscillates the blade beam. A reduction drive is provided for oscillating the shearing comb at a lesser frequency than the blade beam in generally three directions, a first direction substantially parallel to the oscillating direction of the blade beam, a second direction which is transverse thereto, and a third direction which lifts the shearing comb off the skin being shaved.