Abstract: A quinacridone derivative according to Formula (I): wherein R1 and R2 are each independently selected from the group consisting of hydrogen, alkyl, and halogen. Also, methods for preparing non-aqueous pigment dispersions and inkjet inks including a pigment and the quinacridone derivative of Formula (I).

Abstract: A method is disclosed for accurate reproduction of high-quality halftone images comprising microdots by means of lithographic plate materials which comprise a heat-sensitive positive-working coating that requires wet processing. Such microdots have a dot size ?25 ?m and may be obtained by stochastic screening or by amplitude-modulated screening at a ruling of not less than 150 lpi. It has been established that the “physical right exposure energy density” (physical REED) lies in the range from CP to 1.5*CP, wherein the physical REED is defined as the energy density at which the physical area on the plate, occupied by a microdot corresponding to a 50% halftone in the image data, coincides with the 50% target value; and wherein CP is the clearing point of the plate which is defined as the minimum energy density that is required to obtain, after processing, a dissolution of 95% of the coating.

Abstract: A metal chalcogenide composite nano-particle comprising a metal capable of forming p-type semiconducting chalcogenide nano-particles and a metal capable of forming n-type semiconducting chalcogenide nano-particles, wherein at least one of the metal chalcogenides has a band-gap between 1.0 and 2.9 eV and the concentration of the metal capable of forming p-type semiconducting chalcogenide nano-particles is at least 5 atomic percent of the metal and is less than 50 atomic percent of the metal; a dispersion thereof; a layer comprising the nano-particles; and a photovoltaic device comprising the layer.

Abstract: A photopolymer printing plate precursor includes a photosensitive coating on a support, wherein the photosensitive coating includes a composition that is photopolymerizable upon absorption of light, and the composition includes at least one binder, a polymerizable compound, a sensitizer, and a photoinitiator. The binder is a copolymer that has a Tg of less than 70° C., and wherein 1 mol-% to 50 mol-% of the monomeric units of the copolymer are substituted by at least one acidic group, has a very high sensitivity and resistance of the exposed image portions against alkaline developers, when exposed with a laser, even if no pre-heat step is performed.

Abstract: A method for making a negative-working heat-sensitive lithographic printing plate precursor includes the steps pf: (i) providing a support having a hydrophilic surface or which is provided with a hydrophilic layer; and (ii) applying on the support a coating which includes a product DQ, wherein DQ is obtained by: the step of coating a solution or dispersion including a nucleophilic compound Q and a dye D selected from the list consisting of di- or tri-arylmethane dyes, cyanine dyes, styryl dyes, and merostyryl dyes; or by D and Q interact to form interaction product DQ, having a white light optical density which is lower that the white light optical density of dye D; and the interaction product DQ is capable of at least partially releasing a dye directly after exposure to infrared light or heat, therby forming a visible image in the coating.

Abstract: A non-aqueous pigment dispersion includes a color pigment, a polymeric dispersant, and a dispersion synergist in a dispersion medium wherein the dispersion synergist is represented by Formula (I): wherein AR1 and AR2 represent a substituted or unsubstituted aromatic groups, and R represents a substituted or unsubstituted aliphatic group, with the proviso that one of R, AR1, and AR2 contains at least one carboxylate anion and that the molecular weight of the anionic part of the dispersion synergist is smaller than 98% of the molecular weight of the color pigment. Also, methods of preparing the non-aqueous pigment dispersions are also.

Abstract: A method of making a lithographic printing plate includes the steps of: a) providing a lithographic printing plate precursor including (i) a support having a hydrophilic surface or which is provided with a hydrophilic layer, (ii) a coating on the support including a photopolymerizable layer, and, optionally, an intermediate layer between the photopolymerizable layer and the support, wherein the photopolymerizable layer includes a polymerizable compound and a polymerization initiator, b) image-wise exposing the coating in a plate setter, c) optionally, heating the precursor in a pre-heating unit, d) developing the precursor off-press in a gumming unit by treating the coating of the precursor with a gum solution, thereby removing the non-exposed areas of the photopolymerizable layer from the support, wherein the photopolymerizable layer further includes a polymer containing an acid group and a basic nitrogen-containing compound capable of neutralizing the acid group, or wherein the photopolymerizable layer furt

Abstract: A method of making a lithographic printing plate includes the steps of: a) providing a lithographic printing plate precursor including (i) a support having a hydrophilic surface or which is provided with a hydrophilic layer, (ii) a coating on the support including an imaging layer, and, optionally, an intermediate layer between the imaging layer and the support, wherein the imaging layer includes a switchable polymer, b) image-wise exposing the coating, whereby the polymer undergoes a chemical reaction induced by the exposing step thereby creating a lithographic image consisting of printing areas and non-printing areas wherein the non-printing areas are removable from the support by a gum solution, and c) developing the precursor by treating the coating of the precursor with the gum solution thereby removing the non-printing areas.

Abstract: A diketopyrrolo-pyrrole compound according to Formula (I): wherein R1, R2, and R3 are independently selected from the group consisting of hydrogen, a halogen atom, a methyl group, an ethyl group, an tert.-butyl group, a phenyl group, a cyano group, and an acid group; R4—, R5, and R6 are independently selected from the group consisting of hydrogen, a halogen atom, a methyl group, an ethyl group, an tert.-butyl group, a phenyl group, and a cyano group; and wherein one of R7 and R8 is a group including two acid functions while the other one of R7 and R8 represents hydrogen. Pigment dispersions, methods for forming pigment dispersions, and use of the diketopyrrolo-pyrrole compound may include Formula (I).

Abstract: A non-aqueous pigment dispersion comprising a diketopyrrolo-pyrrole pigment, a polymeric dispersant and a dispersion synergist in a non-aqueous dispersion medium characterized in that said dispersion synergist is a diketopyrrolo-pyrrole derivative according to Formula (I): wherein R1, R2 and R3 are independently selected from the group consisting of hydrogen, a halogen atom, a methyl group, an ethyl group, an tert.-butyl group, a phenyl group, a cyano group and an acid group; R4, R5 and R6 are independently selected from the group consisting of hydrogen, a halogen atom, a methyl group, an ethyl group, an tert.-butyl group, a phenyl group and a cyano group; and characterized in that one of R7 and R8 is a group comprising two acid functions while the other one of R7 and R8 represents hydrogen.

Abstract: A non-aqueous pigment dispersion includes a color pigment, a polymeric dispersant, and a dispersion synergist wherein the molecular weight of the anionic part of the dispersion synergist containing at least one carboxylate anion is smaller than 98% of the molecular weight of the color pigment and that the anionic part of the dispersion synergist has a similarity coefficient SIM of at least 0.5 with the similarity coefficient defined by: SIM = t · C S + P - C wherein, S represents the number of atoms in the anionic part of the dispersion synergist; P represents the number of atoms in the color pigment; C represents the largest number of atoms in common between the anionic part of the dispersion synergist and the color pigment as one continuous structure; and t is an integer representing the number of times that the largest number of atoms in common C fits into the organic color pigment, without using atoms of the color pigment twice.

Abstract: An apparatus (1) for reading out X-ray information of an X-ray image stored in a storage phosphor layer (4) includes an irradiation device (13) for irradiating the storage phosphor layer (4) with stimulation radiation (14) and a detection device (16) for collecting emission radiation (15) which the storage phosphor layer (4) emits as a result of the irradiation by means of the stimulation radiation (14). The irradiation device (13) and the detection device (16) are fixedly or rigidly associated with one another. Furthermore, an actuation device (8) is provided for producing a relative movement between the storage phosphor layer (4) on the one hand and the irradiation device (13) and the detection device (16) on the other hand. According to the invention, the apparatus (1) includes acquiring unit (19, 19?, 20, 20?, 21, 21?) for acquiring a speed of the relative movement. In this way, in a technically simple way, good image quality of an X-ray image read out can be guaranteed.

Abstract: An information carrier comprising a support and a receiving layer is disclosed, together with the method of preparation. The information carrier further comprises (optionally personalized) information applied, preferably by ink jet printing, on the receiver layer, and a new type of watermark, obtained by applying pattern-wise a curable varnish and curing it, and by curing an overall applied curable lacquer. One of the varnish and the lacquer have the ability upon penetration into the receiving layer of changing its transparency, thus creating a transparent watermark on an opaque background, or creating a opaque watermark on an transparent background. The finished information carrier is preferably cut in a set of multiple identification (ID) cards.

Abstract: A device can read out X-ray information stored in a phosphor layer with an irradiation device for irradiating the phosphor layer with stimulation light which can stimulate the phosphor layer into emitting emission light, and a detector for collecting emission light coming from the phosphor layer and for converting the emission light collected into an analogue detector signal S. In order to increase reliability and resolution when digitising the detector signal, at least two analogue to digital converters are provided which can be operated in different conversion ranges and so can convert the analogue detector signal S into different digital part signal values. Moreover, an analysis device is provided for establishing a digital detector signal value D from the digital part signal values.

Abstract: A non-aqueous pigment dispersion includes a quinacridone pigment, a polymeric dispersant, and a dispersion synergist in a non-aqueous dispersion medium wherein the dispersion synergist is a quinacridone derivative substituted on one of the two nitrogen atoms of the quinacridone basic chromophore structure by a group including at least one carboxyl group or a salt thereof. Also, a method for printing an ink-jet image with an ink including the non-aqueous pigment dispersion.

Abstract: A method for gumming a lithographic printing plate includes the steps of a) providing a lithographic printing plate including a lithographic image consisting of printing areas and non-printing areas, and b) jetting a gum solution with an inkjet printer to produce a hydrophilic protective layer on the non-printing areas. An inkjet printer includes a gum solution for producing a hydrophilic protective layer on the non-printing areas and a fluid for the formation of the printing areas of a lithographic image on a lithographic printing plate precursor.

Abstract: A method for making a lithographic printing plate includes the steps of a) providing an aqueous fluid containing at least 2 weight % of a fluorosurfactant based on the total weight of the aqueous fluid wherein the fluorosurfactant has a phosphorous containing group capable of reacting with the surface of a lithographic printing plate precursor; and b) jetting the aqueous fluid on the surface of a lithographic printing plate precursor.

Abstract: A non-aqueous inkjet ink includes a quinacridone pigment and a dispersion synergist wherein the quinacridone pigment is a mixed crystal including a dimethyl substituted quinacridone and a monomethyl substituted quinacridone and the dispersion synergist includes at least one acid group.

Abstract: The invention relates to a cassette, in particular an X-ray cassette, for receiving a storage fluorescent screen. The cassette has on one of its narrow sides an opening through which the storage fluorescent screen is to be inserted into or removed from the cassette. The opening is closable by a flap which is displaceable between a closed position in which it closes the opening and a release position in which it releases the opening for insertion or removal of the storage fluorescent screen. For this purpose the flap is mounted swivellably to the transition between the narrow side of the cassette provided with the opening and the base of the cassette or the cassette lid.

Abstract: A polymer for a heat-sensitive lithographic printing plate precursor is disclosed wherein the polymer comprises a phenolic monomeric unit wherein the H atom of the hydroxy group of the phenyl group of the phenolic monomeric unit is replaced by a group comprising a N-imide group and wherein the substitution of the polymer increases the chemical resistance of the coating of the printing plate precursor.