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8062720 Printing members for direct imaging and methods of producing same  
Embodiments of the invention are directed to a printing member for imaging with an inkjet printer using pigment-based aqueous inkjet ink. The printing member may include a substrate and a...
7182021 Printing plate material, printing plate material roll, printing plate manufacturing process, and printing process  
A printing plate material product, is provided with a printing plate material including a substrate and a image forming layer provided on the substrate; and a wireless memory tag mounted on a part...
7171902 Direct drawing lithographic printing plate material  
There is disclosed a direct drawing type lithographic printing plate material comprising a support and an image-forming layer formed on the support, wherein the image-forming layer is formed on a...
6895860 Planographic printing plate precursor and its fixing method on plate cylinder  
A planographic printing plate precursor and its fixing method on a plate cylinder of a printing press are disclosed, the planographic printing plate precursor comprising a flexible substrate and...
6786155 Dimensionally stable paper substrate for a precursor to an imaged member  
The invention comprises a precursor to an imaged member comprising a dimensionally stable substrate including an imagable coating, on a surface thereon, wherein the non-coated dimensionally stable...
6745693 Variable data lithographic printing device and method  
A variable data lithographic printing device comprises surrounding a printing cylinder a photosensitive layer coater, an exposure source, optionally a developer, an inking applicator, optionally a...
6484634 Block copy sheet for lithographic printing plate  
A block copy sheet for lithographic printing plate to be interposed between a plate cylinder and a lithographic printing plate having a front surface and a back surface, at least the back surface...
6357351 Substrate for planographic printing  
A method for preparing a substrate for a planographic printing member is disclosed. A liquid that contains water; a soluble alkali metal silicate, preferably sodium silicate; and a dispersed...
6295927 Lithographic base for use in non-impact printing  
According to the present invention there is provided a lithographic base including a support and a hydrophilic cross-linked layer having a total volume of pores of more than 0.0007 cm3 /g of the...
6196129 Wet lithographic printing plates  
Provided is an imaged wet lithographic printing plate which bears a hydrophilic layer and an oleophilic, water-insoluble layer in a desired imagewise pattern overlying the hydrophilic layer,...
6085656 Method of lithographic imaging with reduced debris-generated performance degradation and related constructions  
The ability to clean ablation-type lithographic printing plates is enhanced by the formation of debris chemically compatible with a desired cleaning fluid. The debris may originate in the ablation...
5996496 Laser-imageable lithographic printing members  
Apparatus and methods for imaging lithographic plates using laser devices that emit in the near-infrared region, and plates suitable for imaging with the apparatus and methods. Laser output either...
5829353 Method of modulating lithographic affinity and printing members made thereby  
The lithographic affinity characteristics of a material, such as a polymer, are affected--and thereby selectively modulated--through implantation of one or more metallic materials, typically in the...
5649486 Thin-metal lithographic printing members with visible tracking layers  
Laser-imageable, ablation-type lithographic printing members have a colorant that provides contrast between plate layers of similar tonalities. In particular, the colorant observably distinguishes...
5402725 Lithographic base with a modified dextran or pullulan hydrophilic layer  
This invention provides a lithographic base comprising a support provided with a hardened hydrophilic layer wherein the hardened hydrophilic layer comprises a dextran or pullulan modified with a...
4974513 Thermal direct master  
A thermal direct master for lithography, which comprises a water-resisting substrate and a thermosensitive recording layer formed thereon, which comprises as the main components an inorganic...
4147549 Lithographic printing plate having addition polymerized areas and binder areas  
A lithographic printing plate is prepared from a layer of a photopolymerizable composition comprising an oleophilic macromolecular organic binder and a leachable hydrophilic ethylenically...
RE29893 Lithographic printing plate and method of making the same  
In a lithographic printing plate comprising a base and a lithographic printing surface thereon, said printing surface comprising colloidal silica and an insolubilized hydrophilic polymer, the...
4114535 Resilient lithographic masters for direct printing  
Lithographic masters for improved image quality in direct printing process are provided. The masters are formed with a relatively soft elastomeric or resilient layer on a suitable supporting master...
4115603 Process for producing lithographic printing plates having a paper base  
In a process for the manufacture of a lithographic printing plate having a paper base and a lithographic printing surface thereon comprising a resinous coating, lower coat weights leading to high...
4097647 Lithographic printing plate  
An improved lithographic printing plate having a lithographic surface thereon comprising a resinous coating, at least a major fraction of which is a self-insolubilizing or cross-linkable cationic...
4078927 Photoconductive printing master  
A planographic printing master comprising an ink releasing photoconductive insulating layer and an ink receptive particulate image pattern.
4064312 Nonimaged waterless lithographic master with a curable silicone elastomer and a cured ink releasable silicone layer  
A process for preparing a waterless lithographic printing master is provided. A suitable substrate, which is preferably ink accepting is first coated with a curable silicone which is curable at low...
4034671 Method of using an offset lithographic combination master blanket sheet  
A combination master/blanket printing sheet for use with a lithographic offset duplicating press includes a master layer comprising material having hydrophilic properties which is imagable to...
4030416 Waterless printing masters  
Improved waterless lithographic plates are provided. The master which comprises a copolymer of siloxane blocks crosslinked to an elastomeric ink releasing condition and organic thermoplastic blocks...
4028111 Light-sensitive lithographic printing plate  
A light-sensitive lithographic printing plate comprising a support with a hydrophilic surface having thereon a light-sensitive layer comprising a light-sensitive polyester containing...
3971660 Lithographic printing plate comprising hydrophilic layer of polyvinylacetate crosslinked with tetraethylorthosilicate  
A method of providing a printing plate comprises coating on a support a layer having a hydrophilic surface comprising the homogeneous reaction product of hydrolyzed polyvinyl acetate and hydrolyzed...
3949142 Dry planographic plate  
A new dry planographic plate having a non-ink receptive silicone rubber background area that does not require a fountain solution to repel printing ink and process of producing this new plate...
3910187 Dry planographic printing plate  
Disclosed herein is a dry planographic printing plate and processes for making and using the plate. The plate is characterized, inter alia, by having a fluorine-containing compound as the...
3835780 PROCESS OF PRINTING BY DRIOGRAPHY  
A metallic base photographic plate having images adherently and preferably conductively bonded to the metallic support is produced by contacting with metal image forming materials such as a...
3762325 ELECTROMAGNETIC RADIATION SENSITIVE LITHOGRAPHIC PLATES  
Electromagnetic radiation sensitive elements made of a layer of electromagnetic radiation sensitive material disposed on a support backing or substrate. The electromagnetic radiation sensitive...
3677178 DRY PLANOGRAPHIC PLATES AND METHODS, PRODUCTION AND USE  
A new "dry planographic" plate comprised of a flexible substrate having coated thereon a cured solid but elastic silicone rubber film which will not remove conventional lithographic ink from an ink...
3663289 PROCESS OF PRODUCING A PLANOGRAPHIC PRINTING PLATE AND RESULTANT ARTICLE  
Planographic printing plates and continuous planographic printing forms having a flexible foundation supporting a planographic printing layer and process of making are disclosed. The flexible...
3658523 PHOTOCONDUCTIVE RECORDING MEMBER UTILIZING A MIXTURE OF ZINC OXIDE AND CADMIUM SULPHIDE-CADMIUM SELENIDE  
A photoconductive recording material is superadditively sensitized to visible light by a mixture of 95-50 percent of photoconductive zinc oxide and 5-50 percent of photoconductive crystalline mixed...
3640221 PLANOGRAPHIC PRINTING PLATE  
A planographic printing plate comprising a base having adhered thereto an insolublized coating, including a pigment mixture containing zirconium silicate so as to enhance rejection of ink in...
3639122 VINYL-AMINO RESIN INTERLAYER FOR ELECTROPHOTOGRAPHIC MEMBER USED IN OFFSET PRINTING  
An electrophotograpic material for offset printing having an interlayer, which comprises a reaction product of vinyl resin and amino resin, between a support and a photoconductive layer, said vinyl...
3622373 A PLANOGRAPHIC PRINTING PLATE  
A planographic printing plate formed of a base sheet having the combination of an outer lithographic surface coating and a base or barrier coating immediately underlying the lithographic surface...
3607255 SURFACING NONIMAGE AREAS OF LITHOGRAPHIC MASTER WITH HYDROPHILIC DESENSITIZING COMPOSITION  
A convertible plate adapted for conversion into a lithographic offset master comprising a paper web, and a dielectric film extending over the paper web with finely divided silica distributed...
3593659 OFFSET PRINTING APPARATUS HAVING DISPOSABLE DAMPENING AND INKING MEANS  
In an offset printing press, disposable dampening and inking materials, supplied in premoistened and preinked form, are supported in an unrestrained manner by dampening and inking cylinders,...
3574297 OFFSET PRINTING WITH ALKENYLSUCCINIC ACID COMPOUND  
Paper characterized by insoluble basic surface properties is rendered selectively printing-ink receptive by application of alkenylsuccinic acid, its anhydride, or its soluble salt.
3559577 LITHOGRAPHIC PLATE  
A paper lithographic plate which can be imaged in an automatic-copying machine.
3559576 PLANOGRAPHIC REVERSED PRINTING  
A process for producing planographic prints wherein the printing plate is prepared from a heat-sensitive recording material formed of a support, an interlayer of a water-permeable hydrophilic...
3554125 METHOD OF MAKING A LITHOGRAPHIC MASTER AND METHOD OF PRINTING THEREWITH  
The subject matter of this patent application pertains to a method of preparing a lithographic printing master wherein a photoresponsive imaging composition is interpositioned between two...
3532054 ELECTROSTATIC COPY METHOD EMPLOYING PRESSURE SENSITIVE TRANSFER OF DIELECTRIC TO FORM A MASTER  
3697268 ELECTROSTATIC PRINTING METHOD  
An electrostatic printing method and device therefor comprising the steps of (1) forming an electrostatic latent image upon a conductive photoreceptor by an electronic photography, (2) developing...
3764353 TREATING LIQUID FOR ELECTROPHOTOGRAPHIC OFFSET MASTER  
3592730 PLANOGRAPHIC PLATE-MAKING PROCESS AND SHEETS  
3627529 PROCESS FOR PREPARING A LITHOGRAPHIC PRINTING PLATE  
3690878 PLANOGRAPHIC PRINTING ELEMENT HAVING CARBOXYLIC ACID TREATED IMAGE AREAS  
3814603 METHOD FOR PREPARING LITHOGRAPHIC PRINTING PLATE  
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