Abstract:
Methods for producing an information carrier comprising the steps of: (1) providing an information carrier precursor comprising a rigid sheet or support; a receiving layer configuration having an image-receiving side and a non-image-receiving side, the receiving layer configuration comprising at least one pigment and at least one binder, wherein at least one constituent layer of the receiving layer configuration is opaque; at least the outermost layer on the image-receiving side or a layer in diffusive contact with the outermost layer on the image-receiving side is opaque and porous; and the receiving layer configuration is capable of being rendered substantially transparent by penetration by a lacquer; and a layer or element, or pattern in the layer or element, capable of a machine-readable change upon absorbing UV, visible or IR radiation, the layer or element being either the surface of the rigid sheet or support or interposed between the rigid sheet or support and the non-image-receiving side of the receiving layer configuration; (2) pattern-wise or integrally at least partially transparentizing the receiving layer configuration with a vaporizable liquid thereby providing a transparent pattern on the at least partially transparentized receiving layer; (3) using a light source to write a pattern or modify the pattern in the layer or element capable of a machine-readable change upon absorption of UV, visible or IR radiation after transmission through at least part of the transparentized areas of the receiving layer configuration; evaporating the vaporizable liquid; and after the vaporizable liquid has been evaporated pattern-wise or integrally rendering the receiving layer configuration permanently at least partially non-transparent with a non-transparentizing lacquer, thereby producing an information carrier.
Abstract:
An electrophotographic recording material comprising a conductive support and a photosensitive layer containing a photoconductive crystalline substituted metal-free phthalocyanine compound and/or mixed crystals of said substituted metal-free phthalocyanine compounds with unsubstituted metal-free phthalocyanine, wherein said substituted metal-free phthalocyanine compound represented by general formula (I) defined herein contains a halogen, nitro or cyano substituent, and the major part by weight of said substituted metal-free phthalocyanine compound and the mixed crystals of said substituted metal-free phthalocyanine compound with unsubstituted metal-free phthalocyanine is (are) present in the X-morphological form.
Abstract:
A photosensitive recording material containing a support and a charge generating layer (CGL) in contiguous relationship (contact) with a charge transporting layer (CTL), containing an n-charge transporting material (n-CTM), wherein the binder of the charge generating layer (CGL) is made insoluble in methylene chloride by crosslinking, and the binder is composed essentially of one or more polyepoxy compounds self-crosslinked under the influence of an amine catalyst and/or crosslinked by reaction with at least one primary and/or secondary poly NH-group amine.
Abstract:
A photothermographic recording material comprising a support and a photo-addressable thermally developable element containing a substantially light-insensitive organic silver salt, a reducing agent therefor in thermal working relationship therewith, photosensitive silver halide spectrally sensitized with a dye and in catalytic association with the substantially light-insensitive organic silver salt and a binder, wherein the photo-addressable thermally developable element further includes a hydrazine compound represented by the formula (I): ##STR1## wherein: Z represents the necessary atoms to close a heterocyclic ring which is either a five-membered ring containing at least two heteroatoms or a six-membered ring, which ring may carry one or more fused-on rings, and which ring must contain a C--H bond permitting oxidative aromatisation to an acyl-onium group by means of a hydride shift or a consecutive 2-electron-proton transfer; each of R.sup.1 and R.sup.2 independently represents a hydrogen atom or an alkali-labile group giving rise to a hydrogen atom on hydrolysis; X is an acyl group selected from the group consisting of CO--R.sup.3, CS--R.sup.4, PO--R.sup.5 R.sup.6 and (CN--R.sup.7)--R.sup.8, wherein each of R.sup.3 to R.sup.8 independently represents alkyl, aryl, cycloalkyl, heterocycloalkyl, heteroaryl, O-alkyl, O-aryl, O-heteroaryl, O-heterocycloalkyl, S-alkyl, S-aryl, S-heterocycloalkyl, S-heteroaryl or N--R.sup.9 R.sup.10, wherein each of R.sup.9 and R.sup.10 independently represents hydrogen, aryl, alkyl, heteroaryl, heterocycloalkyl or acyl as defined for X, and wherein R.sup.5 together with R.sup.6, and R.sup.9 together with R.sup.10 may represent the necessary atoms to close a ring.
Abstract:
An electroluminescent arrangement which contains a substrate, an anode, an electroluminescent element, a cathode, and said anode or said cathode is transparent in the visible spectral range and the electroluminescent element is a single layer containing an optionally substituted tris-1,3,5-(aminophenyl)benzene compound (A), a luminescent component B) or a electron-conducting charge-transporting substance.
Abstract:
A substantially light-insensitive monosheet recording material comprising a support and a thermosensitive element containing a substantially light-insensitive organic silver salt, an organic reducing agent therefor in thermal working relationship therewith and a binder, wherein the thermosensitive element further contains an unsaturated carbocyclic or heterocyclic stabilizer compound substituted with a —SA group where A is hydrogen, a counterion to compensate the negative charge of the thiolate group or a group forming a symmetrical or an asymmetrical disulfide and the recording material is capable of producing prints with a numerical gradation value defined as the quotient of the fraction (2.5-0.1)/(E2.5-E0.1) greater than 2.3 , where E2.5 is the energy in Joule applied in a dot area of 87 &mgr;m×87 &mgr;m of the imaging layer that produces an optical density value of 2.5, and E0.1 is the energy in Joule applied in a dot area of the imaging layer material that produces an optical density value of 0.1.
Abstract:
A substantially light-insensitive black and white monosheet thermographic recording material is provided comprising a support and a thermosensitive element containing a substantially light-insensitive organic silver salt, a 1,2-dihydroxyphenyl-compound in thermal working relationship therewith and a binder, wherein the 1,2-dihydroxyphenyl-compound is represented by formula (I): ##STR1## where R is --P(.dbd.O)R.sup.1 R.sup.2, --SO.sub.x R.sup.3, --CN, --NO.sub.2 or --CR.sup.4 .dbd.NR.sup.5 when n is 0; R is --P(.dbd.O)R.sup.1 R.sup.2, --SO.sub.x R.sup.3, --CN, --NO.sub.2, --CR.sup.4 .dbd.NR.sup.5 or --COR.sup.6 when n is an integer; R.sup.1 and R.sup.2 are independently an alkyl, an aryl, an alkoxy, an aryloxy, a hydroxy or an amino group; R.sup.3 is an alkyl, an aryl or an amino group; R.sup.4 is an alkyl or an aryl group or hydrogen; R.sup.5 is an alkyl, an aryl, a hydroxy, an alkoxy, an aryloxy, an acyl or an amino amino group; R.sup.6 is an alkyl, an aryl, an alkoxy, an aryloxy, a hydroxy or an amino group or hydrogen; x is 1, 2 or 3; and the benzene ring of the 1,2-dihydroxyphenyl-compound represented by the formula (I) may be further substituted.
Abstract translation:提供了基本上不受光照的黑白单色温度记录材料,其包括载体和含有基本上不光敏的有机银盐,与其热处理关系的1,2-二羟基苯基化合物和粘合剂的热敏元件,其中 1,2-二羟基苯基化合物由式(I)表示:当n为0时,其中R为-P(= O)R 1 R 2,-SO x R 3,-CN,-NO 2或-CR 4 = NR 5; 当n为整数时,R为-P(= O)R 1 R 2,-SO x R 3,-CN,-NO 2,-CR 4 = NR 5或-COR 6; R1和R2独立地是烷基,芳基,烷氧基,芳氧基,羟基或氨基; R3是烷基,芳基或氨基; R4是烷基或芳基或氢; R5是烷基,芳基,羟基,烷氧基,芳氧基,酰基或氨基氨基; R6是烷基,芳基,烷氧基,芳氧基,羟基或氨基或氢; x为1,2或3; 由式(I)表示的1,2-二羟基苯基化合物的苯环可以进一步被取代。
Abstract:
An electrophotographic recording material comprising a conductive support and a photosensitive layer containing a photoconductive crystalline substituted metal-free phthalocyanine compound and/or mixed crystals of said substituted metal-free phthalocyanine compounds with unsubstituted metal-free phthalocyanine, wherein said substantial metal-free phthalocyanine compound represented by general formula (I) defined herein is substituted with alkyl or alkoxy.
Abstract:
A photographic light-sensitive silver halide material is provided for making negative lithographic images or direct-positive images, said material comprising a support, at least one internal latent image-type silver halide emulsion layer (in the case of direct-positive materials) or surface latent image-type silver halide emulsion layer (in the case of lithographic materials) and development-nucleating amounts of a compound or a precursor thereof, said compound having at least one quaternary heterocyclic ring system comprising at least three rings including a tetrahydropyridinium ring wherein carbon-nitrogen and carbon-carbon double bonds are also part of an aromatic ring being one of said three rings and wherein said double bonds and nitrogen atom in said tetrahydropyridinium ring are incorporated into annelated conjugated ring systems. Developing said photographic material after exposure in an alkaline surface developer rapidly converts said precursor into a ring system as defined hereinbefore.
Abstract:
A photoconductive recording material containing a support and a charge generating layer (CGL) in contiguous relationship with a charge transporting layer (CTL) containing a n-charge transporting material (n-CTM), wherein the binder of said charge generating layer (CGL) is made insoluble in methylene chloride by crosslinking, and said binder is composed essentially of at least one resin (1) and/or (2) crosslinked with at least one polyisocyanate, said resin (1) before its crosslinking corresponding with general formula (I) as defined in the description, and said resin (2) being a dialkanolamine-modified epoxy resin.