Agfa Graphics Nv

Agfa-Gevaert

Agfa Nv

Joseph Vander Aa

Joan T Vermeersch

Huub Van Aert

Dirk Franky Kokkelenberg

Eric Verschueren

Emiel A Verdonck

Tom Cloots

Rudi A Goedeweeck

Fabienne Goethals

Rene Geelen

Luc Bouwens

A method of producing a 2D barcode on an article including a laser markable layer, wherein the 2D barcode includes a primary information pattern representing primary information, which can be read by a 2D-barcode-reader, and a secondary information pattern embedded within the 2D barcode, which is difficult to reproduce without alteration, includes a laser marking step of exposing the laser markable layer with an infrared laser thereby forming the secondary information pattern of the 2D barcode.

Authentication method of a two dimensional bar code

A method for gumming a lithographic printing plate includes the steps of a) providing a lithographic printing plate including a lithographic image consisting of printing areas and non-printing areas, and b) jetting a gum solution with an inkjet printer to produce a hydrophilic protective layer on the non-printing areas. An inkjet printer includes a gum solution for producing a hydrophilic protective layer on the non-printing areas and a fluid for the formation of the printing areas of a lithographic image on a lithographic printing plate precursor.

Method for gumming a lithographic printing plate

A method of making a lithographic printing plate includes the steps of:

Method of developing a heat-sensitive lithographic printing plate precursor with a gum solution

A method of making a lithographic printing plate is disclosed which comprises the steps of

Method of making a heat-sensitive lithographic printing plate

A method of lithographic printing is disclosed which comprises the steps of unwinding a web of a flexible lithographic base from a supply spool, the lithographic base having a hydrophilic surface, wrapping the lithographic base around a cylinder of a printing press, applying on the lithographic base an image-recording layer which is removable in a single-fluid ink or can be rendered removable in a single-fluid ink by exposure to heat or light, image-wise exposing the image-recording layer to heat or light, processing the image-recording layer by supplying single-fluid ink, thereby obtaining a printing master, printing by supplying single-fluid ink to the printing master which is mounted on a plate cylinder of the printing press; and removing the printing master from the plate cylinder, preferably by winding up on an uptake spool. Since the image-recording layer can be processed by single-fluid ink, the imaging material is suitable for on-press processing in printing presses wherein no fountain solution is supplied to the plate. The method allows a rapid, fully automatic plate change with reduced press down time.

On-press coating and on-press processing of a lithographic material

A method of lithographic printing is disclosed which comprises the steps of unwinding a web of an imaging material from a supply spool, the imaging material comprising (1) a flexible lithographic base having a hydrophilic surface and (2) an image-recording layer which is removable in a single-fluid ink or can be rendered removable in a single-fluid ink by exposure to heat or light, wrapping the imaging material around a cylinder of a printing press, image-wise exposing the image-recording layer to heat or light, processing the image-recording layer by supplying single-fluid ink, thereby obtaining a printing master, printing by supplying single-fluid ink to the printing master which is mounted on a plate cylinder of the printing press, removing the printing master from the plate cylinder, preferably by winding up on an uptake spool. Since the image-recording layer can be processed by single-fluid ink, the imaging material is suitable for on-press processing in printing presses wherein no fountain solution is supplied to the plate. The method allows a rapid, fully automatic plate change with reduced press down time.

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Rijmenam, Belgium

Joseph Vander Aa