Agfa-gevaert

Govert De Baecke

Johan August Loccufier

Ann L Verbeeck

Freddy Henderickx

Frank P Michiels

Benny Jansen

Ton Rutges

Luc H Leenders

Marc Irene Van Damme

Huub Van Aert

Leo Oelbrandt

Kathy Elst

Heinrich Odenw&auml;lder

Andr&eacute; Roefs

Freddy Hendrickx

A method for preparing a lithographic printing plate by means of ink jet is disclosed. The ink jet fluid contains an oleophilizing compound chosen from the group consisting of a catechol, a pyrogallol, and a salicylic acid.

Computer-to-plate by ink jet

A method has been described for processing an exposed black-and-white silver halide photographic film material comprising in a hydrophilic light-sensitive layer thereof a binder and silver halide grains being &lcub;111&rcub; or &lcub;100&rcub; tabular silver bromo(chloro)iodide or silver chloro(bromo)iodide grains having an average aspect ratio of from 1.2 to 50 and having a silver iodide content of less than 3 mole % based on silver with at least part of it at their grain surface, said method comprising the steps of developing in a developer, fixing in a fixer, rinsing and drying, characterized in that in said developing step the developer comprises an alkali soluble agent having preventing silver dissolution properties, being a mercapto azole compound as presented herein.

Processing method providing cold blue-black image tone for black-and-white materials having silver halide grain emulsions

A radiographic film material is described including a transparent film support having first and second major surfaces coated with a subbing layer, optionally overcoated with an antihalation undercoat. Coated adjacent on each side of the film support is a light-sensitive silver halide emulsion overcoated with a protective antistress layer. The emulsion layer has chemically and spectrally sensitized &lcub;111&rcub; tabular hexagonal grains or crystals, having silver iodide in an amount of at most 3 mole %, based on silver, covering at least 50% of the total projective surface of all grains, having an average grain thickness of less than 0.30 &mgr;m. The antistress layer, or the optional antihalation undercoat or both includes a N-amino mercapto-triazole compound containing one or more alkali soluble group(s). A radiographic screen/film combination is also described including the film material.

Radiographic film material exhibiting increased covering power and &ldquo;colder&rdquo; blue-black image tone

Silver halide photographic material exhibiting increased covering power and &ldquo;colder&rdquo; blue-black image tone

A black-and-white silver halide developer composition has been disclosed comprising, besides one or more developing agent(s), agent(s) preventing oxidation thereof and agent(s) providing pH buffering, at least one silver complexing agent, characterized in that said silver complexing agent has a silver complexing stability ratio of at least 70% and, besides said silver complexing agent, at least one agent preventing silver dissolution characterized in that said agent preventing silver dissolution, if present in an amount of 50 mg/l of developer, makes silver content of the developer decrease in an amount of more than 50% versus in the absence thereof, without loss in speed in an amount of more than 0.10 log Exposure after processing in said developer composition.

Developer composition for use in the processing of light-sensitive silver halide photographic materials

Processing method of light-sensitive silver halide photographic materials showing less tendency to sludge formation

Growing community of inventors

Kalken, Belgium

Govert De Baecke