Abstract: A color photographic silver halide material having at least one silver halide emulsion layer which is cyan coupling and contains 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 the at least one blue sensitive halide emulsion layer contains a further spectral sensitizer (gap sensitizer) whose sensitization maximum lies between the sensitization maxima of the red and green sensitive silver halide emulsion layer and/or the at least one red sensitive silver halide emulsion layer contains an additional spectral sensitizer (gap sensitizer) whose sensitization maximum lies between the sensitization maxima of the green sensitive and the blue sensitive silver halide emulsion layer is distinguished by an increased range of gradations in the region of the maximum densities and a markedly improved detail reproduction in the region of high densities.

Abstract: The present invention provides a conversion liquid for converting silver areas of a silver based printing plate into ink repellant areas while rendering background areas of said silver based printing plate ink accepting, said conversion liquid comprising a hydrophobizing compound capable of adsorbing to said hydrophilic background areas and a hydrophilizing compound capable of adsorbing to said silver areas and/or a bleaching compound capable of oxidizing the silver in said silver based printing plate.

Abstract: In a color photographic recording material, the light stability of a dye image produced from a magenta coupler and stabilized with a compound of the formula I may be further improved by additionally using a compound of one of the formulae II and III. ##STR1## In the formulae I, II and III, R.sup.1, R.sup.21, R.sup.25, R.sup.31, R.sup.34 mean H, alkyl, aryl, acyl;R.sup.2, R.sup.22, R.sup.32 mean --OR.sup.1 alkyl, aryl, dialkylamino, acylamino, sulphonamido, acyl, sulphonyl;R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.23, R.sup.24, R.sup.33 mean H, halogen or a residue as R.sup.2 ;m, n, q mean 0, 1, 2 or 3;o means 0, 1 or 2;p means a positive integer;A means alkylene, --O--, --S--, --NR.sup.25 --, --SO.sub.2 ;B means alkylene, --O--, --S--, --NR.sup.34 --, --SO.sub.2 --;wherein two adjacent residues --OR.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6 may together complete a 5- to 8-membered ring, two adjacent residues --OR.sup.21, R.sup.23, R.sup.22 or --OR.sup.21, R.sup.24, R.sup.22, or --OR.sup.31, R.sup.

Abstract: The present invention provides a method for making an image comprising the steps of:bringing a dye-layer comprised on the support of a dye donor element in face-to-face relationship with an image receiving layer comprised on a support of an image receiving element, said dye layer consisting of a repeating sequence of at least two dye frames each containing a dye dispersed or dissolved in a binder and,image-wise heating by means of thermal head each of said dye frames of said repeating sequence so as to cause image-wise transfer of dye from said dye layer to said image receiving layer characterised in that: said dye frames contain (a) particle(s) protruding from said dye layer, the last dye frame to be image-wise heated from said repeating sequence, containing said particle(s) in a reduced amount relative to the amount of said particle(s) in any of the other dye frames of said repeating sequence or alternatively said last dye frame being substantially free of said particle(s).

Abstract: The present invention provides an imaging element comprising in the order given (i) a hydrophilic grained and anodized aluminum support with an aluminum oxide barrier layer of at least 10 nm thickness, (ii) an image receiving layer containing physical development nuclei in an amount of at least 0.7 mg/m.sup.2 and (iii) a photosensitive layer containing a silver halide emulsion being in water permeable relationship with said image receiving layer. The invention also relates to a method for making lithographic plates with said imaging element.

Abstract: In a known method for radiographic imaging, a phosphor sheet capable of stimulation with radiation and carrying stored thereon an image pattern obtained e.g. by an X-ray exposure through a patient's body, is exposed to stimulating radiation, such as a laser beam, which causes the sheet to emit light in the pattern of the stored image and the emitted light is read-out photoelectrically. The stimulating radiation is applied to the sheet as a beam which is caused to scan the sheet linewise as the sheet undergoes relative movement in one direction with respect to the beam by means of galvanometric deflection which deflects the beam in one direction in a scanning step and then in the opposite direction in a retracing step to return the beam for the next scanning step.In the invention, the sheet is exposed to the beam at a significantly lower intensity level to cause the sheet to emit low level light corresponding to the image pattern.

Abstract: Dye-donor element comprising a support provided with a dye layer containing a cyan indoaniline dye and/or another cyan azomethine dye, together with a cyan thiazolylazoaniline dye.

Abstract: The present invention provides a method for making a lithographic printing plate according to the silver salt diffusion transfer process using a photographic material comprising on a support a silver halide emulsion layer and a layer containing physical development nuclei comprising the steps of:image-wise exposing said photographic material anddeveloping a thus obtained image-wise exposed photographic material by guiding said image-wise exposed photographic material through an alkaline processing liquid in 15 s or less; characterized in that said alkaline processing liquid comprises a hydrophobizing compound having a mercapto group that has a pK.sub.a of 4.5 or less.

Abstract: The present invention provides an imaging element comprising a support, a porous layer, a photosensitive layer containing a photopolymerizable composition and optionally a stripping layer characterized in that there is provided a barrier layer between said photosensitive layer and said porous layer said barrier layer being impermeable for the photopolymerizable composition at ambient temperature and capable of increasing its permeability with increasing temperature.

Abstract: Apparatus for processing photographic sheet material includes a pair of rotatable squeeze rollers mounted one above the other to define a nip through which the sheet material passes, and a pressure roller resting on the upper roller periphery generally opposite the lower roller for biasing the upper roller against the lower roller solely by the force of gravity on the pressure roller. Thus, the biasing force on the squeeze rollers is uniform along their length. Preferably, a plane passing through the axes of rotation of the two squeeze rollers is tilted slightly forward in the feed direction of the sheet material from a vertical plane passing through the lower roller axis and the axis of the pressure roller is situated between the two planes. The pressure rollers each have a radially outward layer of elastomeric material thereon.

Abstract: Emulsions having an improved sensitivity/grain ratio are obtained when a silver halide emulsion containing up to 20 mol % of AgI is prepared by the precipitation of a silver halide emulsion A containing up to 100 mol % of AgI and the addition of a silver halide emulsion B which contains up to 40 mol % of AgI, has an average grain size of at most 0.25 .mu.m and is always more soluble in aqueous gelatine solution than emulsion A either due to its grain size or due to its iodide content, this being carried out in the presence of at least two compounds selected from imidazole, histidine (.alpha.-amino-.beta.

Abstract: Dye-donor element for thermal dye recording comprising a dye layer comprising a dye and leuco-indoaniline dye as a light-stabilizer. The leuco-indoaniline dye is preferably a compound according to the formula: ##STR1## wherein R.sup.1 is H or any substituent, n is 0-4 each of R.sup.2 and R.sup.3 (same or different) is H or acyl, X is 0 or represents atoms completing a ring (system), each of R.sup.4, R.sup.5, R.sup.6, and R.sup.7 (same or different) is H, (cyclo)alkyl, aryl, alkyloxy, aryloxy, carbamoyl, sulphamoyl, --OH, halogen, --NH--SO.sub.2 R.sup.12, --NH--COR.sup.12, --O--SO.sub.2 R.sup.12, or --O--COR.sup.12, or R.sup.4 and R.sup.7 together and R.sup.5 and R.sup.6 together represent the atoms completing a ring (system), or R.sup.4 and R.sup.8 and/or R.sup.5 and R.sup.9 together and R.sup.5 and R.sup.6 together represent the atoms completing a heterocyclic nucleus, each of R.sup.8 and R.sup.9 (same or different) is H, (cyclo)alkyl, aryl, a heterocyclic nucleus, or R.sup.8 and R.sup.

Abstract: A light tight storage container for photographic sheet material comprises a base having a floor and upstanding sidewalls constituting a tray for holding stack of the sheet material and a generally flat lid covering the top of the tray. The tray and lid respectively have outer peripheral margins bent angularly to the plane of the lid in mating relation to create a light tight labyrinth. At its outer termination, the outer peripheral margin of the tray is formed as an upwardly opening shallow channel while the outer termination of the lid is formed as a lip seating in the channel to act as a separable hinge along which the lid can pivot relatively to the tray to open the tray. The lid can also be completely removed. The channel is spaced above the plane of the tray floor for insertion of the fingers thereunder for lifting of the tray with or without the lid in place.

Abstract: Compounds of Formula I are suitable as light stabilizers for the image dyes produced during chromogenic development from magenta couplers or yellow couplers ##STR1## In Formula I: R.sup.1, R.sup.2, R.sup.3 signify alkyl, aryl;R.sup.4, R.sup.5, R.sup.6 signify H, alkyl, alkoxy, aryloxy, acyloxy, ##STR2## alkoxycarbonyl, carbamoyl; R.sup.7 signifies H, alkyl, aryl;R.sup.8 signifies alkyl, aryl, acyl;X signifies a single bond, --O--, --NH--.

Abstract: A process is disclosed for the purification of waste water containing a silver compound, comprising the steps of (1) adding to said waste water a salt of a poly(guanidine) or poly(biguanidine) polymer (2) adding a flocculant, and (3) filtrating the formed flocculate.The invention is particularly suitable for the removal of silver from the effluent of a photographic processor, and more specifically the effluent of a processor of wash-off materials, said effluent also containing gelatin.A most preferred poly(guanidine) compound is poly(hexamethyleneguanidine) hydrochloride.

Abstract: A photostimulable phosphor of which the emission intensity at the stimulation wavelength of 550 nm is higher than the emission intensity at the stimulation wavelength of 600 nm, characterized in that said phosphor is a divalent europium activated barium fluorobromide containing as codopant samarium, and wherein the terminology barium fluorobromide stands for an empirical formula wherein (1) a minor part of the barium (less than 50 atom %) is replaced optionally by at least one metal selected from the group consisting of a monovalent alkali metal, a divalent alkaline earth metal other than barium, and a trivalent metal selected from the group consisting of Al, Ga, In, Tl, Sb, Bi, Y, and a rare earth metal selected from the group consisting of Ce, Pr, Nd, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu, (2) a minor part (less than 50 atom %) of the bromine is replaced by chlorine, and/or iodine, and (3) wherein fluorine is present stoichiometrically in a larger atom % than bromine taken alone or bromine combined with chlorin

Abstract: Dye donor element for use according to thermal dye sublimation transfer comprising a support having thereon a dye layer, wherein said dye layer comprises at least one heterocyclic isoxazolone dye.

Abstract: A photographic material is disclosed comprising a support, at least one silver halide emulsion layer, and optionally one or more non-photosensitive hydrophylic layer(s), characterized in that at least one of said emulsion layer(s) and/or non-photosensitive layer(s) contains a triphenylmethane dye, absorbing around 670 nm, represented by general formula (ID) : ##STR1## wherein R.sup.1 and R.sup.2 each independently represents hydrogen unsubstituted or substituted alkyl, or unsubstituted or substituted aryl,R.sup.3 represents an electron-withdrawing group, and the substance contains at least two water-solubilizing groups,and X.sup.- represents an anion, or an intramolecular anionic group.The triphenylmethane dyes can serve as filter dye, acutance dye, or anti-halation dye. The claimed photographic materials are especially suited for exposure by a laser diode emitting at 670 nm.

Abstract: A reel for strip-like recording substrates, in particular photographic films, with a slot provided in the reel core and at least one hook provided therein for fixing the end of the tape inserted into the slot, wherein the upper and lower side of the hook are joined together by an oblique face at the end opposite the film insertion side, in such a manner that the hook tapers towards the hook end and the hook surface is longer than the hook under-side, and wherein any chosen sections parallel to the under-side of the hook through the oblique face produce arcuate lines of intersection, ensuring secure insertion of the film end.

Abstract: Dye-donor element for use according to thermal dye transfer methods, said element said element comprising a support having thereon a dye layer comprising a combination of dyes, wherein the constituting dyes of said combination comprise at least one yellow and/or at least one cyan dye as well as at least one magenta dye of the class of N-alkyl-N-aryl-substituted tricyanovinylaniline dyes. By means of this dye-donor element dye images are obtained, which show a substantially reduced catalytic fading effect in the red and blue shades, have a high light-fastness, and show vivid blue and vivid red and orange colors in the full color area.