Intaglio printing

The knowledge and control of localized corrosion was also required to produce etched plates for the graphic artist with its intaglio lines. Prints made by the process first appear around 1500 AD, but there was a long prehistory in the decorative etching of metal surfaces, particularly those of steel arms and armor [279]. 

Intaglio Flat-bed Cylinder Fine art work printing Bank note printing... 

The general configuration of rollers from the ink duct to the printing plate is common in those processes which use paste inks, that is, letterpress, intaglio, and lithography. A typical arrangement is shown in Figure 99. 

If the foamable composition Is to be used for printing, the composition Is designed to have a useful life of 8 to 10 hours after foaming for a very practical reason. For a multicolor printing operation, It would be Impractical to have a mechanical foamer for each color being applied to the fabric. Instead each foamed color composition Is sequentially prepared In the color shop. The foamed colors are then treated as conventional print pastes and applied to fabric by either screen or Intaglio printing techniques. 

Inks— Mannich bases derived from naphthol and benzotriazole are additives providing dispersant and anticorrosion properties for intaglio printing and ballpoint pen inks, respectively. 

Gravure printing employs an intaglio process whereby the print area lies below the surface of the plate in small cells. The tone or colour depth may rely on the depth of etch (i.e. amount of ink which lies in the cells) and/or the number of cells per linear inch. All gravure is basically half tone (solid line gravure plates are used in some tampon or cliche processes). 

Intaglio—print area lies below the non print area—rotagravure or photogravure. 

Intaglio inks (special inks used to avoid counterfeiting of items such as bank notes) are also employed and ink-jet printing with UV-curable materials is starting. 

Photogravure fo-t9-gro- vyur [F, If. phot-+ gravure] (1879) n. Process for making prints from photomechanically prepared intaglio plates. Printing ink handbook. National Association of Printing Ink Manufacturers Inc., Kluwer Academic Press, London, UK, 1976. 

Steel plate printing n. An intaglio type of printing using metal plates with the image etched or engraved below the surface. 

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