Abstract: A photographic light-sensitive silver halide material is disclosed comprising a support and one or more hydrophylic colloid layers including at least one light-sensitive silver halide emulsion layer characterized in that in said emulsion layer is a gold and sulphur sensitized silver bromide or silver bromoiodide emulsion having cubic crystal habit and in that said emulsion and/or a hydrophylic colloid layer in water-permeable relationship therewith comprises a 3-pyrazolidinone compound.

Abstract: To eliminate the "pi-line" artefact after processing a method of image formation in a silver halide industrial X-ray photographic material is disclosed wherein said material comprises on at least one side of a support, at least one gelatino silver halide emulsion layer and a total amount of silver halide, corresponding to from 6 to 20 g of silver nitrate per square meter and per side, and at least one non-sensitive protective antistress coating and wherein said method proceeds by the steps of exposing said material to direct X-rays and processing the material in an automatic processing machine by development, fixing, rinsing and drying, characterized in that said material further comprises at least one vinyl sulphone compound as a hardening agent in at least one of its hydrophilic layers, that development occurs in a developer comprising as a surfactant at least one anionic alkylphenoxy and/or alkoxy polyalkyleneoxy phosphate ester, sulphate ester, alkyl carboxylic, sulphonic or phosphonic acid and/or a salt

Abstract: A color photographic material comprising at least one cyan-coupling silver halide emulsion layer containing a red sensitizer, at least one magenta-coupling silver halide emulsion layer containing a green sensitizer and at least one yellow-coupling silver halide emulsion layer containing a blue sensitizer on a support, in which a silver halide emulsion is provided in a coupler-free layer sensitized with another spectral sensitizer (a gap sensitizer) of which the sensitization maximum lies between the sensitization maxima of the red- and green-sensitive layers or the green- and blue-sensitive layers, is distinguished by an extended gradation range towards the maximum densities and by distinctly improved detail reproduction in the region of high densities.

Abstract: A photographic silver halide material for industrial radiography comprises a film support and on one or both sides thereof a silver halide emulsion rich in silver chloride and a silver halide emulsion rich in silver bromide either in admixture in the same layer or in contiguous layers. The ratio by weight of colloid binder, e.g. gelatin, to silver halide (expressed as silver nitrate) is from 3:10 to 6:10 and the amount of silver halide corresponds to from 6 g to 20 g of silver nitrate per square meter and per side. The material has been forehardened to an extent such that when it is immersed in demineralised water of 25.degree. C. for 3 minutes there is absorbed less than 2.5 g of water per gram of binder. The material can be processed within a total processing time of less than 5 minutes with a developer and fixer being substantially free from hardening agents and the fixer being substantially free from ammonium ions.

Abstract: The present invention provides a lithographic base comprising on a hydrophobic support a subbing layer contiguous to a hydrophilic layer containing a hydrophilic (co)polymer or (co)polymer mixture and being hardened with a hydrolyzed tetraalkyl orthosilicate crosslinking agent characterized in that said subbing layer contains a hydrophilic binder and silica and is applied at a solids content of more than 200 mg per m.sup.2 but less than 750 mg per m.sup.2.

Abstract: The present invention provides an imaging element comprising on a support in the order given a base layer containing a matting agent having a number average diameter between 0.4 and 1 times the thickness of said base layer, a spectrally sensitized silver halide emulsion layer and a receiving layer containing physical development nuclei having an average diameter less than 6 nm and wherein the number of nuclei having a diameter larger than 4.5 nm is less than 15% of the total number of nuclei contained in said receiving layer and wherein substantially no matting agent is present in said receiving layer, silver halide emulsion layer or any other layer optionally being present between said receiving layer and silver halide emulsion layer.

Abstract: Apparatus for the preparation and dispensing of liquids which are used in developing machines for photosensitive material has a vessel with an upright partition over which a freshly formed mixture containing at least one liquid substance can overflow from a mixing chamber into a storage chamber. The latter has a bottom wall disposed at a level below the bottom wall of the mixing chamber and provided with an outlet which discharges mixture into a collecting container. A pump is provided to circulate the liquid substance along an endless path extending in part through the mixing chamber, and the partition has an opening slightly above or at the level of the bottom wall of the mixing chamber to permit direct flow of mixture between the two chambers when the mixture in the storage chamber reaches a certain level. The flow of mixture through the opening is controlled by a valve including a float.

Abstract: The present invention provides a method for making an offset printing plate according to the silver salt diffusion transfer process using rinsing water, characterized in that alkali is added to said rinsing water before washing at most 20 m.sup.2 of said exposed and developed imaging element and/or before being in use for more than 24 hours in such an amount that a pH in said washing water between 10.5 and 13 is obtained.

Abstract: A coating station for coating a thin layer of coating composition on a web which comprises a housing having an inlet connected to a source of pressurized air and provided with a plurality of atomizing means for the coating composition arranged in a row running parallel to the path of the web, and further having mutually diverging upper and lower wall means defining a space with a rectangular cross-section operative to decrease the velocity of the air current loaded with atomized coating composition, and converging upper and lower wall means causing an homogenizing of said loaded air current, and an elongate outlet port causing acceleration of said air current and application thereof onto said web.

Abstract: A color photographic recording material with at least one silver halide emulsion layer and a color coupler associated with that layer, which contains in the silver halide emulsion layer or in an adjacent non-photosensitive binder layer a combination of a color coupler and a compound corresponding to general formula (I) or (II): ##STR1## in which R.sub.4 is the residue of a polymer produced by polycondensation andR.sub.1 to R.sub.3, m and n are as defined in the specification, ##STR2## in which R.sub.4 is as defined above and L.sub.1, L.sub.2, X, R.sub.5 to R.sub.11, p, q and r are as defined in the specification,is distinguished by improved stability of the image dyes produced from yellow couplers.

Abstract: A color photographic material which contains in at least one blue-sensitive layer a yellow coupler and a compound of the formula (I) ##STR1## in which R.sub.1 means hydrogen or alkyl,R.sub.2 means hydrogen or alkyl,R.sub.3 means hydrogen or alkyl,1 means 1 to 20X ##STR2## or cycloalkene, R.sub.4 means hydrogen or alkyl,R.sub.5 means hydrogen or alkyl andn means 1 to 6,shows improved light-stability of the yellow dye obtained from said yellow coupler by exposure and processing.

Abstract: Color photographic silver halide material of the negative type, in which at least one silver halide emulsion layer contains a compound of the formulaA-B-(T.sub.1).sub.m -(COUP-D)-(T.sub.2).sub.n (I),whereinA represents a ballast group,B represents the radical of a compound which reacts to release (T.sub.1).sub.m -(COUP-D)-(T.sub.2).sub.n during development,T.sub.1 and T.sub.2 represent time-regulating units which can be released during development,m, n are 0 or 1,COUP represents the radical from a 4-equivalent coupler andD represents a group with an affinity for silver,distinguished by improved sensitivity.

Abstract: The present invention provides an image receiving material containing on a support an image receiving layer having as a principal component the hardened product of (i) a vinylchloride-based resin containing active hydrogens, (ii) an aliphatic polyisocyanate having 3 isocyanate groups as specified in the claims and (iii) a polydialkylsiloxane containing active hydrogens. The present invention further relates to a method for making an image receiving element and to a method for obtaining images therewith.

Abstract: A color photographic material with at least one silver halide emulsion layer which contains a color coupler distributed in a polymeric oil former and at least one compound of the formula (I) ##STR1## in which R means alkyl, cycloalkyl, alkenyl, aryl, acyl, alkylsulphonyl or arylsulphonyl,R.sub.1 means a chemical bond or a divalent bridging member,R.sub.2 and R.sub.3 mean alkyl, alkoxy, alkenyl, cycloalkyl, aryl or aryloxy or two residues R.sub.2 or R.sub.3 the remaining atoms of a benzene ring condensed with the phenyl residue andm and n mean 0 to 3, wherein all alkyl, alkoxy, cycloalkyl, alkenyl, aryl, aryloxy and acyl residues may be further substituted,is characterized by improved color stability.

Abstract: A photographic copier has a copying station with a platen for a master to be reproduced and a platen for copy material. A straight guide extends across the copying station below the platen for the master and above the platen for the copy material, and a carrier is movable along the guide. The carrier supports several parallel rows of objectives, and the rows extend transverse to the direction of travel of the carrier. The objectives of each row have the same magnification and the magnification decreases successively from row to row, or vice versa. Each row is located at a different level of the carrier with the row of maximum magnification at the highest level and the row of minimum magnification at the lowest level. The objectives have vertical optical axes and the guide is inclined to the optical axes at an angle different from 90 degrees. The row of maximum magnification is disposed at the end of the carrier which faces the lower end of the guide.

Abstract: New types of modified gelatins are disclosed, modified at part of the free carboxyl groups of the polypeptide chain, by the introduction of a new end-standing amino, sulphinic acid or thiol group. The modified gelatins show an enhanced reactivity towards vinylsulphonyl hardeners. The invention further includes hardened modified gelatin types and hydrophilic elements containing them. In particular, a differentially hardened multilayer element, preferably a photographic element, is disclosed.

Abstract: A method of manipulating a train of electrical signals equal in binary terms to the density gradation levels of a plurality of image pixels of an original image over a range of density gradation levels for controlling the reproduction of the original image on a receiving sheet in a thermal printer having an array of controllable printing elements corresponding in number to the pixels in an image line and an actuating circuit for actuating the respective printing elements in individually accessible fashion. In the method, the electrical signals for a given line of the image pixels are stored in a line memory and are outputted one by one from the line memory to a non-zero detector and downcounter for identification as to zero or non-zero status and downcounting of all non-zero signals to reduce the level thereof by one level.

Abstract: The present invention provides a heat mode recording material comprising on the same side of a non-conductive support a conductive recording layer and an elastomeric image forming layer being non-conductive characterised in that a peelable polymeric film is provided as an outermost layer on the side of said support containing said elastomeric image forming layer.

Abstract: Dye-donor element for use according to thermal dye transfer methods, said element comprising a dye layer comprising at least one tricyanovinylaniline dye, wherein the amino group of the aniline function of said dye carries an aryl group and a hydrocarbon or substituted hydrocarbon group linked by a secondary carbon atom to said amino group. The dyes have very good light-fastness and good spectral absorption characteristics.

Abstract: The present invention provides triazene dyes according to formula (I) for use in thermal transfer printing:A--N.dbd.N--NR.sup.1 R.sup.2 (I)wherein A is the residue of a diazotisable heteroaromatic amine, R.sup.1 and R.sup.2 independently represent hydrogen, an alkyl group, a substituted alkyl group, an alkenyl group, a substituted alkenyl group, an aryl group, a substituted aryl group, a cycloalkyl group, a substituted cycloalkyl group, an aralkyl group, or R.sup.1 and R.sup.2 represent the atoms necessary to complete a ring system or a substituted ring system.