Patents for B41N 3 - Preparing for use or conserving printing surfaces (3,811)
01/1994
01/13/1994DE4322494A1 Photo litho plate development appts. - measures concn. of rubber soln. and plate etching medium for top-up of water or medium as required
01/04/1994US5275916 Image-receiving layer contains dispersed copolymer resin particles
01/04/1994US5275691 Method for treating a surface of an aluminum substrate for a printing plate
01/04/1994CA1325788C Process for the electrochemical roughening of aluminum for use in printing plate supports
12/1993
12/29/1993EP0575802A1 Photopolymeric printing plates
12/22/1993EP0574450A1 Device for continuous electrodeless electrochemical treating of an electrically conductive web in an electrolyte cell and its use.
12/21/1993US5271818 Apparatus for roughening a substrate for photosensitive layers
12/21/1993CA1325402C Bilayered anodized aluminum support, method for the preparation thereof and lithographic printing plate containing same
12/15/1993EP0573988A2 Process for producing support for lithographic printing plates
12/15/1993EP0573494A1 Method of extending the useful life and enhancing performance of lithographic printing plates
12/15/1993CN1079428A An improved fountain solution supply system
12/08/1993CN1023033C Stripping liquid for regenerating prepainted relief photosensitive plate
12/07/1993US5268025 Mixture of phosphate buffer, amine and humectant
12/02/1993CA2106517A1 Non-alcohol fountain solution for planographic offset printing
11/1993
11/24/1993EP0570879A2 Process and device for erasing the ink-bearing layer on the surface of an imaged printing form
11/24/1993EP0570461A1 Pre-bake printing plate composition
11/24/1993EP0435943B1 USE OF (C-1 to C-5) ALKYL ESTERS OF ALIPHATIC (C-8 to C-22) MONOCARBOXYLIC ACIDS FOR REMOVING INKS AND THE LIKE FROM PRINTING MACHINES
11/23/1993US5264110 Electrolytic square wave graining
11/16/1993US5262244 Hydrophilic copolymers and their use in reprography
11/16/1993CA1324240C Lipophobicating solution for electrophotographic plates for offset printing
11/11/1993WO1993019939A3 Printing method and apparatus
11/10/1993CN1078201A Corrosion agent for lithograph printing
11/02/1993US5257444 Plate making apparatus
10/1993
10/27/1993EP0567178A1 A method for preparing an aluminium foil for use as a support in lithographic printing plates
10/26/1993US5256190 Comprising a plate coating, fountain concentrates, an alcohol replacement, a roller coating, plate wash and compensator solution
10/26/1993US5255607 Method and apparatus for maintaining registration when making a printing plate
10/21/1993DE4212582A1 Prodn. of gravure printing cylinders - comprises providing a metal (alloy) protective layer on the cylinder surface before the gravure process
10/19/1993US5254430 Lithographic printing plates
10/14/1993WO1993019939A2 Printing method and apparatus
10/14/1993CA2132625A1 Printing method and apparatus
10/13/1993EP0565006A2 Method for preparing PS plate
10/13/1993EP0515532B1 Composition for protecting the surface of lithographic printing plates
10/12/1993US5252360 Process for the protection of an engraved roll or plate by coating an engraved surface with an interlayer and thereafter applying a wear-resistant layer to the interlayer by PVD
10/06/1993EP0563187A1 Isopropyl alcohol-free catalytic fountain solution concentrate and method for introducing a catalytic agent into lithographic printing ink.
10/05/1993US5249525 Ink repellant coating containing a conductive oxide compound
09/1993
09/15/1993EP0560347A1 Method for preparing dry lithographic plates
09/14/1993US5244495 Hydroxy ethers
09/08/1993CN1022026C Brand-carving technique by branding plate
09/01/1993EP0558311A1 Light-sensitive lithographic printing plate
08/1993
08/25/1993EP0557008A2 Apparatus and method for electronic impositioning
08/25/1993EP0557004A2 Apparatus and method for electronic impositioning
08/25/1993EP0556357A1 Silver image bleaching solution and process
08/17/1993CA1321335C Dibasic esters for cleaning electronic circuits
08/10/1993US5233918 Reusable screen printing process and apparatus
08/05/1993WO1993014939A1 Granulates for offset printing
08/05/1993CA2127802A1 Granulates for offset printing
07/1993
07/29/1993DE4201660A1 Granulate fuer den offsetdruck Granules for offset printing
07/27/1993US5230988 Image exposure of plates of aluminum with phosphate or phosphonate compounds and basic compounds
07/21/1993EP0551300A1 Printing plate protectant
07/20/1993US5228906 Acidic aqueous solution of low molecular weight cationic protein, defoamer
06/1993
06/22/1993US5221442 Method and apparatus for electrolytic treatment
06/22/1993US5221330 Hydrophilic film-forming polymer, buffer, water miscible organic solvent, micelle-forming compound, water
06/15/1993US5219664 Hydrophilic copolymers and their use in reprography
06/15/1993US5218903 Press dampening system
06/09/1993EP0545092A2 An apparatus and method for controlling an electrolytic treatment of a subject material
06/08/1993US5217813 Polyethyleneimine and polyvinylamine derivatives, aluminum-based substrate materials coated with these derivatives and the use thereof for the production of offset printing plates
05/1993
05/27/1993WO1993009957A1 Metal-based lithographic plate constructions and methods of making same
05/25/1993US5213950 Pre-bake printing plate composition
05/25/1993US5213919 Process for preparation of lithographic printing plate and eluting solution used for said process containing alkali chelating agent
05/25/1993US5213042 Printing process and apparatus
05/25/1993US5213041 Method and system for fusing printing image deposits on surfaces of a printing substrate, and removal thereof for re-use of the surface
05/18/1993US5211113 Printing machine with an electrochemically changeable printing form, and method of operation
05/13/1993DE4136264A1 Moistener preparation system for offset printing - has reservoir which can be supplied with water and alcohol, with additive and amount of water flowing measured by water meter depending on filling level position
05/13/1993DE4136263A1 Moisture prepn. device for rotary offset lithographic printer - signals impending exhaustion of additive denoted by ejection time of test dose falling below desired value
05/12/1993EP0541068A1 Steam treatment method for a planographic printing plate support and apparatus therefor
04/1993
04/21/1993EP0537633A1 Method for treatment of grained and anodised lithographic printing plates and lithographic printing plates produced according to this method
04/20/1993US5204143 Process for treating metal surface
04/20/1993US5203926 Cleanser and desensitizer for printing equipment
04/20/1993CA1316392C Method and apparatus for cleaning and maintaining printing presses
04/14/1993EP0536531A2 Process for graining of aluminum and aluminum alloys respectively for supports for printing plates and a printing plate
04/06/1993CA1315590C Desensitizing gum for lithographic printing plate
03/1993
03/30/1993US5198073 Methods for treating the surface of a solid body
03/17/1993EP0531878A1 Forme cylinder in an offset printing machine
03/16/1993US5194173 Fatty ester as cleaning aid
03/10/1993EP0530957A1 A lithographic printing plate precursor of direct image type
03/10/1993CA2077306A1 Process for roughening aluminum or aluminum alloys as support material for printing plates and a printing plate so roughened
03/04/1993WO1993004401A1 Silver image bleaching solution and process
02/1993
02/23/1993US5188032 Metal-based lithographic plate constructions and methods of making same
02/17/1993EP0527315A2 Nonionic liquid detergent composition for printing blankets for automatically cleaning of rubber printing blankets in offset machines
02/16/1993US5187046 Arc-grained lithoplate
02/16/1993US5186795 Immersing in acidic electrolyte solution, subject to electric current
02/10/1993EP0526867A1 Process for making a cylindrical embossing tool
02/09/1993US5184550 Device for controlling wetting behavior of metal surfaces by application of electrolyte under controlled voltage
02/06/1993CA2075325A1 Process for producing an embossing die in roll form
02/04/1993WO1993001942A1 Two-stage electrolytic graining process, aluminum sheet material produced thereby and lithographic printing plate comprising such aluminum sheet material
02/04/1993CA2111195A1 Two-stage electrolytic graining process, aluminum sheet material produced thereby and lithographic printing plate comprising such aluminum sheet material
02/03/1993EP0526191A1 Desensitizing solution for offset printing
01/1993
01/20/1993EP0523584A1 Process for the regeneration of direct image offset printing forms
01/19/1993US5180654 Processing radiation sensitive members with aqueous ethyl hexyl sulphate treatment prior to burn-in step
01/13/1993EP0522435A1 Fountain concentrate and fountain solution as well as its use in offset-printing
01/12/1993US5178963 Hydrophilic copolymers and their use in reprography
01/12/1993US5178961 Thermally crosslinkable hydrophilic copolymers and their use in reprography
01/07/1993WO1993000411A1 Lithographic printing fountain solution
01/07/1993DE4121783A1 Dampening additive for offset printing contg. hydroxy-propionate ester - and/or opt. ethoxylated acetylene alcohol or other wetting agent giving good print
01/07/1993DE4121303A1 Cleaning agent for sieves for filtering solder pastes etc. - comprises low boiling point alcohol(s), limonene and surface active additives
12/1992
12/30/1992EP0520354A1 Apparatus and method for anodizing supports for lithographic printing plate
12/30/1992EP0520332A1 Printing press with a printing form to be deleted
12/29/1992US5174869 Electrochemical graining by soaking in an acid solution and applying alternate current to form uniform surface
12/23/1992WO1992022688A1 TREATING Al SHEET
12/16/1992EP0517960A1 Correction fluid for a diazo-based lithographic printing plate
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