Abstract: A process for the offset printing of stock material in which the blanket is inked repeatedly with the printing ink so that an image having an elevated ink layer thickness is produced on the blanket. Before the transfer of the image to the stock any moisture (water) on the blanket is removed, whereafter a non-hygroscopic stock is printed in a single printing step. Consequently, a high color saturation after a single printing is produced even when transparent or opal foil is used for illuminated advertising.

Abstract: Copy to be transferred to an intaglio form for printing is first photolithographically reproduced as a basic discontinuous-tone image which is then photoelectrically scanned and converted into a dot pattern by computerized engraving of an intaglio-printing surface. The engraving may be carried out mechanically or by inscribing the dot pattern on a film with the aid of a laser and then projecting it onto a pigment carrier to produce a latent image upon which a blurred halftone replica of the basic image is superimposed to extend the tonal range by selectively deepening the pits subsequently etched into the printing surface.