Abstract: A preparation process for a first aqueous dispersion comprising an ex-situ photosensitive silver halide and a substantially light-insensitive silver salt of an organic carboxylic acid, comprising the steps of: separately preparing a second aqueous dispersion comprising the ex-situ photosensitive silver halide and a third aqueous dispersion comprising the substantially light-insensitive silver salt of an organic carboxylic acid; and mixing the second aqueous dispersion with the third aqueous dispersion to produce a mixture thereof, characterized in that the first aqueous dispersion thereby produced is substantially free of a water-soluble metal or ammonium salt of an aliphatic carboxylic acid with greater than 12 carbon atoms and the process further comprises a step selected from the group consisting of: increasing the pH of the second aqueous dispersion to a value of at least 8.0 prior to mixing with the third aqueous dispersion; increasing the pH of the third aqueous dispersion to a value of at least 8.

Abstract: 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.

Abstract: A negative-working heat-sensitive material for making a lithographic printing plate by direct-to-plate recording is disclosed. The material comprises in the order given a lithographic base having a hydrophilic surface, an oleophilic imaging layer and a cross-linked hydrophilic upper layer which comprises an organic compound derived from sulfonic acid, sulfuric acid, phosphoric acid or phosphonic acid. Materials according to the invention are characterized by an increased water-acceptance in the non-printing areas, which allows a rapid start-up of the press.

Abstract: A digital image representation of a radiological image is acquired and applied to a display device connected to a computer and displayed. A measurement scheme is retrieved from the computer and activated. Measurements are performed on the displayed image under guidance of the activated measurement scheme.

Abstract: 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.

Abstract: A dot matrix printing method is provided for printing an image on a printing medium with reduced banding, by moving, with respect to the medium, a printing head in a fast scan direction during a plurality of printing passes. The method comprises writing the image during the plurality of printing passes by mutually interstitial printing steps and/or interlacing steps, wherein the writing step comprises moving the medium with a transport distance step in a slow scan direction perpendicular to the fast scan direction between the printing passes of the at least two sub-images. The sum of all transport distance steps after writing one swath of each sub-image is exactly one head length, and the transport distance steps are performed in at least two different step lengths. An apparatus for dot matrix printing an image using sub-images, and transport distance steps with at least two different step lengths, is also provided.

Abstract: A method of correcting artefacts in a processed digital image represented by a multi-scale gradient representation being obtained by non-linear processing of a multi-scale gradient representation of an original image. A modified gradient representation is generated by modifying gradient images of the multi-scale gradient representation of the processed image so that the directions of the gradient images are pixel-wise equal to those of the gradient images of the multi-scale gradient representation of the original image. A reconstruction algorithm is then applied to the modified gradient representation.

Abstract: An improved method for the preparation of a dispersion of ZnS particles doped with copper is disclosed. The method comprises the step of performing a precipitation by mixing together a zinc salt, a sulfide, and a citrate or EDTA complex of copper ions, dissolved in several aqueous solutions. Enhanced luminescence is obtained.

Abstract: A web material is disclosed comprising a substrate in web form and multiple microwells, arranged on the substrate in a predetermined pattern and separated from each other by separating zones, each microwell comprising a bottom and an upstanding surface formed by the adjacent separating zones, wherein the composition of the bottoms on the one hand and the composition of the separating zones and upstanding surfaces on the other hand show a different hyrophilicity.

Abstract: A printing apparatus (10) for printing an image on a receiving substrate (20), the printing apparatus including: ink application means (11) for imagewise applying liquid ink to a side of the receiving substrate; a drying section (12) for drying the receiving substrate after the ink application; transportation means (13, 14, 15) for transporting the receiving substrate along a path (30-36) past the ink application means (11) and through the drying section (12); wherein the path (30-36) has a path section (30-36) between a first position (P1,P2) at the ink application means (11) and a second position (P3-P7) downstream the first position (P1,P2), the path section (30-36) having first (30) and second (32) substantially straight portions and a convex curve (31) between the first (30) and second (32) substantially straight portions.

Abstract: A color photographic silver halide material comprising a substrate, at least one red-sensitive silver halide emulsion layer containing at least one cyan coupler, at least one green-sensitive silver halide emulsion layer containing at least one magenta coupler and at least one blue-sensitive silver halide emulsion layer containing at least one yellow coupler, characterised in that the silver halide crystals of the red-sensitive layer have a chloride content of at least 95 mol %, the cyan coupler corresponding to formula wherein R1 represents a hydrogen atom or an alkyl group, R2 represents an alkyl, aryl or hetaryl group R3 represents an alkyl or aryl group, R4 represents an alkyl, alkenyl, alkoxy, aryloxy, acyloxy, acylamino, sulphonyloxy, sulphamoylamino, sulphonamido, ureido, hydroxycarbonyl, hydroxycarbonylamino, carbamoyl, alkylthio, arylthio, alkylamino or arylamino group or a hydrogen atom and Z represents a hydrogen atom or a group which may be split off under the conditions of c

Abstract: A compound represented by formula (I): a compound represented by (II): or a mixture of at least one compound represented by formula (I) with at least one compound represented by formula (II), wherein M is hydrogen, an alkali atom or an ammonium group; R1 is hydrogen, a —(CH2)mSO3M group or a R2 is an alkyl-, alkenyl- or alkynyl- group having 6 to 25 carbon atoms; and m is an integer between 1 and 5; the use of at least one compound represented by the above-mentioned formula (I), at least one compound represented by the above-mentioned formula (II) or a mixture of at least one compound represented by the above-mentioned formula (I) and at least one compound represented by the above-mentioned formula (II) as a surfactant; and a photographic material comprising a support and a layer containing photosensitive silver halide, characterized in that the photographic material contains at least one compound represented by the above-mentioned formula (I), at le

Abstract: A deformable color photographic silver halide material, said color photographic silver halide material comprising on a deformable plastic support at least one blue-sensitive silver halide emulsion layer containing at least one yellow coupler, at least one green-sensitive silver halide emulsion layer containing at least one magenta coupler and at least one red-sensitive silver halide emulsion layer containing at least one cyan coupler, wherein the silver halide emulsions have an overall silver chloride content of at least 95 mol % and at least one silver halide emulsion contains silver halide crystals that are doped with 10 to 700 nmol iridium

Abstract: The orientation of an image such as a radiographic image is deduced from the digital representation of the image.

Abstract: A method of detecting the orientation of a radiographic image represented by a digital signal representation wherein mathematical moments of the digital signal representation are calculated relative to different reference entities and wherein a decision on the orientation of the radiographic image, for example the position of the thorax edge in a mammographic image, is obtained on the basis of an extreme value (minimum, maximum) of the calculated moments.

Abstract: A positive working printing plate precursor is disclosed which comprises a hydrophilic support and a coating provided thereon which comprises in the order given a first layer containing an oleophilic resin soluble in an aqueous alkaline developer and a second layer comprising a water repellent-compound. Furthermore, the coating comprises an infrared absorbing dye containing a polysiloxane group providing a printing plate precursor with high sensitivity.

Abstract: A method for calibrating a thermal printer, having a thermal head incorporating a plurality of energisable heating elements, comprises the step of supplying to the thermal printer a thermographic material m, a plurality of printer data Pi each intended to be recorded as a pixel having a density Di, and default reference values for printing parameters comprising a value Pref for a reference printing power; and the step of printing a calibration pattern for the plurality of printer data Pi, the calibration pattern comprising a multiple step density wedge such that a whole range of a relation Di(Pi) between the printer data Pi and the density Di is covered.

Abstract: A method for the preparation of a negative working lithographic printing plate is disclosed. A printing plate precursor comprising a lithographic support and an image forming layer is mounted on a printing press. A liquid containing a dissolution inhibitor is image-wise dispensed on the precursor by means of ink jet printing. The precursor is developed on press by the application of fountain and ink whereby the image areas are retained and the non-image areas are removed.

Abstract: A monosheet black and white substantially light-insensitive thermographic recording material comprising a thermosensitive element and a support, the thermosensitive element containing a substantially light-insensitive organic silver salt, a 1,2-dihydroxyphenyl-compound in thermal working relationship therewith and a binder, wherein said 1,2-dihydroxyphenyl-compound is represented by formula (I): R1SO2R2, wherein R1 is an optionally substituted aryl group and R2 is selected from the group consisting of a 3,4,5-trihydroxyphenyl group, a 3-alkoxy-4,5-dihydroxyphenyl group and a 3-aryloxy-4,5-dihydroxyphenyl group; or said 1,2-dihydroxyphenyl-compound is represented by formula (II): R3COOR4, wherein R3 is a 3-alkoxy-4,5-dihydroxyphenyl group or a 3-aryloxy-4,5-dihydroxyphenyl group; and R4 is an alkyl group or an aryl group; and a thermographic recording process therefor.

Abstract: A substantially transparent conductive layer on a support, the layer comprising an intrinsically conductive polymer e.g.