Abstract: A process carried out by an ink-jet printing apparatus (1) comprises the steps of placing articles (3a) to be printed on a support (12) of an apparatus (1) further provided with a carriage (6) carrying at least one main print head (8) and at least one auxiliary head (11), and moving the support (12) and the carriage (6) relative to each other in at least one first ink-laying direction (X). The process is put into practice by carrying out the following steps in succession: laying the ink emitted from the auxiliary print head (11) to carry out printing of the articles (3a, 3b) with a background layer, drying the ink just laid by the auxiliary head (11) through a first drying device (14) disposed alongside the main head (8) and laying the ink emitted from the main head (8) to carry out decorations on the background layer.

Abstract: An ink-feeding device for ink-jet printing apparatus comprises an ink-containing tank (2) and at least one print head (7) connected to the tank (2). The device further comprises a metering device (3) interposed between the tank (2) and the print head (7) and provided with an inner space (10) having a planar major extension to keep the pressure of the ink feeding the print head (7) substantially constant and to improve the print quality.

Abstract: An apparatus and method for trimming dye coated on a recordable disc substrate during production of an optical memory disc which includes a substrate rotation assembly for rotating the disc substrate, an optic assembly for directing a laser beam directly upon the rotatable substrate to trim the dye coated thereon, and a process byproduct removing assembly for removing the trimmed byproducts from the substrate.

Abstract: A method for forming a protective barrier layer between the active dye layer and the disc substrate during production of an optical memory disc is provided wherein a pre-treatment/pre-coat solution is applied to the disc substrate. This pre-treatment/pre-coat solution includes a surface modifier having an index of refraction approximately equal to that of the disc substrate. Surface modifiers utilized in this pre-treatment/pre-coat solution include poly vinyl alcohol, poly alpha methyl styrene, cellulose acetate, poly vinyl butyral and nitrocellulose.