Abstract: In an apparatus and method for producing simplex prints in a single pass duplex printer, two sheets are conveyed in coinciding relationship through a common path during a print cycle. While the sheets are simultaneously conveyed through the common path, a first toner image is formed on one side of one sheet and a second toner image is formed on an opposite side of the other sheet. The toner images are simultaneously fixed on both sheets by a separate fixing station.

Abstract: A silver halide photographic material is disclosed containing a new type of hydrazide compounds represented by following general formula I, the different symbols of which are defined in the description. ##STR1## In a preferred embodiment Q is chosen from pyridinium, quinolinium or isoquinolinium. In a most preferred embodiment Q is a pyridinium substituted on the N.sup.+ with a C.sub.5 to C.sub.8 alkyl group.The photographic material is preferably a graphic arts recording material. High gradation and excellent hard dot quality are obtained.

Abstract: A positive-working, radiation-sensitive recording material capable of being used for the production of planographic printing plates, comprising: an aluminum support and a radiation-sensitive layer coated thereon, whereinthe aluminum support has been grained in nitric acid, then cleaned in sulfuric acid, anodized in sulfuric acid, and subsequently hydrophilized with a compound comprising at least one unit with a phosphonic acid or phosphonate group; andthe radiation-sensitive layer comprisesa) a radiation-sensitive 1,2-naphthoquinone-2-diazide-4- or -5-sulfonic acid ester of a polycondensate having phenolic hydroxy groups, said polycondensate being obtained by reacting a phenolic compound with an aldehyde or ketone,b) a novolak or a polycondensation product obtained by reacting a polyphenol with an aldehyde or ketone, as an alkali-soluble resin,c) a vinyl-type polymer comprising at least one unit having a lateral hydroxyphenyl group,d) a clathrate-forming compound,e) a low-molecular weight compound which compr

Abstract: According to the present invention there is provided a polymer not comprising maleic acid derivatives having acid labile groups pendant from the polymer backbone, characterized in that said pendant groups are represented by--L--(C.dbd.O)--O--(C.dbd.O)--O--C--R.sup.1 R.sup.2 R.sup.3,wherein L represents a divalent linking group bonded to the polymer backbone, R.sup.1 represents an alkyl group of which the linking C atom comprises at least one hydrogen and R.sup.2 and R.sup.3 each independently represent a hydrogen or an alkyl group or R.sup.1 and R.sup.2 or R.sup.2 and R.sup.3 form together a ring compound still with the proviso that the linking C atom of R.sup.1 comprises at least one hydrogen.According to the present invention there is further provided a novel photosensitive composition comprising a latent Bronsted acid and a polymer having acid labile groups pendant from the polymer backbone as described above.

Abstract: The apparatus comprises a developing station (10), a second treatment station (12), a third treatment station (14). A liquid connection (52) is provided between the third treatment station (14) and the second treatment station (12). In a cleaning mode, liquid is fed from the developing station (10) to the third treatment station (14) to assist in cleaning of the third and second treatment stations (12, 14). The apparatus can be cleaned in a particularly convenient and efficient method, enabling optimum use of cleaning liquids and enabling automation of the cleaning process.

Abstract: The apparatus comprises a treatment vessel (112) having a path-defining roller (12) biased towards a reaction member (14) to define a nip (136) there-between through which a sheet material path (120) extends. The path-defining roller (12) comprises a core (56) having a covering of elastomeric material, an outer layer (60) of which is doped with a surface modifying material. The roller which is able to resist wear without significant loss to operating characteristics.

Abstract: A heat mode element with improved mechanical properties is disclosed comprising a transparent support, a thin metallic recording layer, an adhesive layer, a polymeric resin layer and a top layer comprising a roughening agent in such an amount that the R.sub.a value of said top layer is at least 0.08 .mu.m and the R.sub.z value is at least 0.6 .mu.m. In a preferred embodiment the metallic recording layer is a bismuth layer, and the support has on the other side a backing layer with a low R.sub.a and R.sub.z value.In an alternative embodiment the top layer is absent and the roughening agent is incorporated in the polymeric resin layer itself.Also disclosed is a method for obtaining a heat mode image by the information-wise laser exposure of the disclosed element.

Abstract: Disclosed is a polyalkylene naphthalate film, preferably the homopolymer of naphthalene-2,6-dicarboxylic acid and ethylene glycol (PEN), comprising a UV absorbing compound of general formula Q--CO--CO--X (explained in the description) for quenching of the UV fluorescence at 429 nm. The polymeric film is preferably used as support for a photographic material, preferably a colour negative or colour reversal photographic material.

Abstract: A silver halide photographic material is disclosed containing a new type of hydrazide compound represented by following general formula I, the different symbols of which are defined in the description. ##STR1## In a preferred embodiment Q is pyridinium, substituted with a propargyllic group or butynyl group.The photographic material is preferably a graphic arts recording material. High gradation and excellent hard dot quality are obtained.

Abstract: A light-sensitive silver halide photographic material and a method for preparing said material is provided, wherein said material comprises a support and on one or both sides thereof at least one silver halide emulsion layer and a protective antistress layer as an outermost layer, characterized in that said silver halide emulsion layer(s) and/or said protective antistress layer comprise(s) at least one zeolite loaded with a photographically useful group. Said photographically useful group is a soluble salt, an organic compound releasing chloride, bromide or iodide, a sulfur salt, a selenium salt, a tellurium salt and/or a metal salt of group VIII.

Abstract: Recording materials and a method of manufacturing said materials by coating hydrophilic colloidal layer compositions on a support by slide-hopper or curtain-coating techniques, followed by drying, said materials comprising a support and one or more light-sensitive and/or heat-sensitive layer(s) having a hydrophilic colloidal coating composition comprising no gelatin(in the case of (photo)thermographic materials) or gelatin in low amounts in order to provide a ratio by weight of gelatin to silver halide expressed as an equivalent amount of silver nitrate in the range from 0.05 to 0.4 (in the case of a light-sensitive silver halide photographic material) and thickening agents composed of synthetic clay and anionic macromolecular polyelectrolytes and wherein said synthetic clay is present in an amount of at least 85% by weight versus a total amount of thickening agents.

Abstract: A label is provided, comprising a means wherein penetrating radiation leaves a human- or machine-readable semi-permanent or permanent mark. Preferably said means is a storage phosphor. A method for using such a label for checking if an articles has been inspected by penetrating radiation and a method for using such a label as personal monitoring are also provided.

Abstract: A radiographic screen/film combination or system has been provided comprising a duplitized film sandwiched between a pair of supporting or self-supporting X-ray intensifying screens, characterized in that i) said pair of supported or self-supporting X-ray intensifying screens essentially consists of luminescent phosphor particles emitting at least 50% and more preferably at least 80% of their emitted radiation in the wavelength range shorter than 380 nm, as e.g. a niobium and gadolinium doped, monoclinic M, yttriumtantalate (MYT) phosphor corresponding to formula IYTaO.sub.4 :Gd:Nb (I),ii) said film comprises {111} tabular silver halide grains rich in silver chloride, spectrally sensitive to irradiation in the said wavelength range shorter than 380 nm by the presence of at least one azacyanine dye as a spectral sensitizer.

Abstract: A photosensitive element is disclosed comprising on at least one side of a support one or more silver halide emulsion layers and a non-light sensitive hydrophilic colloidal layer characterized in that at least one emulsion layer comprises silver halide crystals having an oligomeric platinum complex containing only carbonyl ligands, which is represented by formula (1):[Pt.sub.3 (CO).sub.6 ].sub.n.sup.2- (1)wherein n is not more than 10.The invention also provides a method for the preparation of a photosensitive element as described hereinbefore comprising the step of introducing the oligomeric platinum carbonyl containing complex as represented by formula (1) during grain formation in at least one silver halide emulsion.

Abstract: The vessel (10) comprises a housing (12) having openings (14, 16) closed by pairs of rotatable path-defining rollers (18, 20, 22, 24) through which a sheet material path (30) extends. Liquid level control means (38) define a dynamic liquid level (L) in the treatment chamber (32) above the sheet material path (30). A buffer comprises one or more drip chambers (34, 36) positioned to receive liquid escaping from the treatment chamber (32) through the nips (26, 28) and between the rotatable path-defining rollers (18, 20, 22, 24) and the housing (12). The buffer has a maximum total volume such that a static liquid level (S) is established below the sheet material path (30), without the buffer overflowing. In a non-operative condition, treatment liquid, which escapes through the nips and between the path-defining rollers and the housing, is all retained in the buffer, for later re-use as desired.

Abstract: According to the present invention there is provided a heat mode imaging element comprising in the order given:i) a lithographic base,ii) a heat ablatable recording layer andiii) a top layer having an opposite affinity for ink or an ink abhesive fluid than the lithographic base,characterized in that the top layer comprises as main substance an inorganic-organic composite material wherein the inorganic phase is formed by controlled hydrolysis and polycondensation of a metal alkoxide and the organic phase is an organic polymer or copolymer linked to at least one inorganic atom.

Abstract: A process for electrostatographic production of a transfer image on a transfer foil, useful for hot-stamping is disclosed. The process uses transfer foils with a thickness between 5 and 60 .mu.m and the image is printed on the transfer foil using toner particles with a melt viscosity between 100 and 2,000 Pa.multidot.s. The image is preferably fixed to the transfer foil by non-contact fusing methods and the printing proceeds on a web unwound from a roll.

Abstract: An amorphous complex macromolecular compound is provided hat comprises in its macromolecular structure,(i) an amorphous polycondensation backbone, the corresponding backbone polymer having a Tg of at least 45.degree. C. and(ii) at least one polymer chain attached to the backbone, either terminally and/or in a side-chain, this polymer chain being derived from a polymer which on itself has an average molecular weight by number (M.sub.avg) so that 400.ltoreq.M.sub.avg .ltoreq.4000, a melting point between 50.degree. C. and 150.degree. C. and a melting range of at most 15.degree. C.There are also provided methods for the production of the amorphous complex macromolecular compound.Further are provided toner particles and toner receiving substrates comprising the amorphous complex macromolecular compound mentioned above.

Abstract: A fusing station of an electrographic apparatus fixes in a single pass a duplex resinous powder color image to a support material as the support material is moved over a predetermined path through the fusing station. The fusing station employs a symmetrical fixing operation on both sides of the support material. The fusing station applies hot air to both sides of the support material in substantially equal flows. The hot air is heated by heating sources with substantially identical operational characteristics such that the flows of hot air are heated to substantially equal temperatures on both sides of the support material.

Abstract: According to the present invention there is provided a photothermographic material comprising on a support a photo-addressable thermally developable element containing a substantially light-insensitive organic heavy-metal salt, photosensitive silver halide in catalytic association with said substantially light-insensitive organic heavy-metal salt, a reductor for said substantially light-insensitive organic heavy-metal salt and a binder, said photothermographic material having on the same side of the support as said photo-addressable thermally developable element an outermost layer having two phases at least one of which being a dispersion phase of thermoplastic particles, characterized in that said two phases exhibit different affinities for at least one printing liquid selected from the group consisting of ink and an abhesive fluid for ink.