| Patents for B41N 3 - Preparing for use or conserving printing surfaces (3,811) |
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| 10/23/1991 | EP0452954A2 Surface treatment apparatus for printing plate support |
| 10/23/1991 | CN1055508A Branding-carving technique |
| 10/09/1991 | EP0450199A1 Water developable diazo based lithographic printing plate |
| 10/09/1991 | CN1055142A Transparent composite film used for plate making |
| 10/09/1991 | CN1014224B One-step print for hot pressed raised carvings |
| 10/08/1991 | US5054394 Blend of water, gum, glycol, and crosslinking agent |
| 10/01/1991 | US5053319 Aqueous solutions of oleophilic compounds |
| 09/24/1991 | US5051327 Method for oil-densensitization treatment of lithographic printing plate |
| 09/18/1991 | EP0446762A2 Process for making engraved plates or rollers |
| 09/12/1991 | DE4105887A1 Photosensitive lithographic plate with hydrophilic coat - contg. amino phosphoric acid or phosphonic or phosphinic acid or salt, preventing stating and soiling |
| 09/11/1991 | EP0445959A1 Electrolytic graining |
| 09/10/1991 | CA1288722C Process for the electrochemical graining of aluminum for use as printingplate supports |
| 09/07/1991 | CA2037594A1 Electrolytic graining |
| 09/03/1991 | US5045157 Process for producing aluminum support for printing-plate |
| 09/02/1991 | CA2035118A1 Process and device for the control of the wetting behaviour of surfaces |
| 08/22/1991 | WO1991012141A1 Composition for protecting the surface of lithographic printing plates |
| 08/22/1991 | WO1991012140A1 Lithographic plates |
| 08/20/1991 | US5041360 Process for producing an ozone-resistant flexographic printing form |
| 08/20/1991 | US5041198 Method and an apparatus for the electrochemical roughening of a metallic surface |
| 08/14/1991 | EP0441502A2 Lithographic plate finisher |
| 08/10/1991 | CA2034965A1 Lithographic plate finisher |
| 08/07/1991 | CN1053582A Application of strongly-magnetized water as moistener in planographic printing (offset printing) |
| 07/25/1991 | DE4001466A1 Electrochemical roughening of aluminium for printing plate mfr. - using combination of mechanical and electrochemical roughening before and/or after main electrochemical roughening stage |
| 07/24/1991 | EP0437761A2 Process for the electrochemical graining of aluminum for printing plate supports |
| 07/20/1991 | CA2034426A1 Process for electrochemical roughening of aluninum for printing plate supports |
| 07/10/1991 | EP0435943A1 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. |
| 07/09/1991 | US5029598 Process for the uniform introduction of a fluid, and apparatus for carrying out the process |
| 06/04/1991 | US5021324 Printing plate protectant |
| 06/04/1991 | CA1284597C Printing plate precursors |
| 05/29/1991 | EP0429074A1 Milling head for smoothing workpieces, specially for copper plate printing cylinders |
| 05/22/1991 | EP0428071A2 Method for producing substrate for PS plate |
| 05/14/1991 | CA1284003C Fat-desensitizing composition for litho printing plates |
| 05/07/1991 | US5013399 Method of preparing support for lithographic printing plate |
| 05/02/1991 | EP0270654B1 A liquid for removing printing and screen printing inks |
| 04/25/1991 | DE3934681A1 Anodising strip material - using bath with three vertical electrodes with strip passing between them in vertical loop |
| 04/24/1991 | EP0423555A1 Process and apparatus for the electrochemical graining of a metal surface |
| 04/23/1991 | US5009722 Process for producing base material for an aluminum offset printing plate |
| 04/17/1991 | EP0422682A2 Method for producing support for printing plate |
| 04/09/1991 | US5006169 Lipophobicating solution for electrophotographic plates for offset printing |
| 04/09/1991 | US5006168 Water soluble polymers as alcohol replacement in lithographic fountain solutions |
| 03/27/1991 | EP0418575A2 Process for the manufacture of plates, foils, or sheet-like materials and process for the manufacture of presensitized lithographic printing plates |
| 03/20/1991 | CN1012051B Zinc-plate printing plate and its prodn process |
| 03/13/1991 | EP0416861A1 Dampening solution composition for lithographic printing |
| 03/06/1991 | EP0415238A2 Method of producing support for planographic printing-plate |
| 03/05/1991 | US4997588 Cleaner for lithographic printing plates free of aromatic hydrocarbons |
| 03/05/1991 | CA1280997C Process for the electrochemical roughening of aluminum for use inprinting plate supports |
| 02/27/1991 | EP0414189A1 Method of producing aluminum support for printing plate |
| 02/26/1991 | US4996135 Desensitizing gum lithographic plate finisher |
| 02/13/1991 | EP0412455A1 Dampening solution for lithographic printing |
| 02/06/1991 | EP0411883A1 Dampening water composition for lithographic plate |
| 02/05/1991 | US4990428 Photosensitive planographic printing plate |
| 01/29/1991 | CA1279445C Lipophobicating solution for electrophotographic plates for offset printing |
| 01/08/1991 | US4983497 Treated anodized aluminum support and lithographic printing plate containing same |
| 01/08/1991 | US4983478 Water-soluble addition polymer or copolymer containing sulfonic acid or sulfonate groups |
| 01/08/1991 | US4982661 Organic titanates |
| 12/19/1990 | EP0403191A2 Conversion solutions for lithographic printing plates |
| 12/19/1990 | CN1010897B Hydrophilic base material of offset plate, manufacture process and use |
| 12/18/1990 | CA1277946C Photosensitive planographic printing plate |
| 12/15/1990 | CA2017638A1 Conversion solutions for lithographic printing plates |
| 12/12/1990 | EP0401601A1 Electrochemical graining of aluminum or aluminum alloy surfaces |
| 12/11/1990 | US4976997 Surface composition for a substrate and method of preparation |
| 12/11/1990 | US4976198 Grain structure for lithographic printing plate supports |
| 12/05/1990 | CA2018180A1 Electrochemical graining of aluminum of aluminum alloy surfaces |
| 11/21/1990 | CN1047051A One-step print for hot pressed raised carvings |
| 11/14/1990 | EP0397407A2 Lithographic plate finisher |
| 11/13/1990 | US4970138 Trihydroxysilyl ethylphosphonic acid |
| 11/13/1990 | US4970116 Substrates for presensitized plates for use in making lithographic printing plates |
| 11/06/1990 | US4968584 Method for making lithographic printing plate |
| 10/24/1990 | EP0393520A1 Process for the uniform introduction of a fluid and device for carrying out this process |
| 10/23/1990 | US4965168 Silver master plate recovery solution |
| 10/21/1990 | CA2015007A1 Process for the uniform introduction of a fluid, and apparatus for carrying out the process |
| 10/18/1990 | DE3911934A1 Printing plate with non-printing area - has colour retaining pattern applied to hydrophilic support base |
| 10/10/1990 | EP0391365A1 Process for treating metal surface |
| 10/10/1990 | EP0391159A2 Water soluble polymers as alcohol replacement in lithographic fountain solutions |
| 10/09/1990 | CA1275068A1 Process for the electrochemical roughening of aluminum for use in printing plate supports |
| 10/03/1990 | EP0390033A1 Process and apparatus for roughening a support for photosensitive layers |
| 09/30/1990 | CA2013299A1 Process and apparatus for roughening a substrate for photosensitive layers |
| 09/26/1990 | EP0389283A1 Correction fluid for electrophoto plates for offset printing |
| 09/26/1990 | EP0388592A2 Stripping solution for plates carrying electrophotographical images and process to strip such plates |
| 09/19/1990 | EP0387750A1 Electrolytic treatment apparatus |
| 09/05/1990 | EP0385015A1 Terpene-based solvents for washout of photopolymer printing plates |
| 09/04/1990 | US4954173 Phytic acid, diamine, water, and mixture of dicarboxylic acids |
| 08/29/1990 | EP0384292A2 Cleaning agent and process for its preparation |
| 08/09/1990 | WO1990008603A1 Dibasic esters for cleaning electronic circuits |
| 07/31/1990 | US4945004 Base material for an aluminum offset printing plate |
| 07/31/1990 | CA2008548A1 Decoating solution for plates imaged by electrophotographic means and process for decoating such plates |
| 07/24/1990 | CA1271958A1 Treating aluminum oxide layer with aqueous hexametaphosphate solution for producing printing plate support |
| 07/18/1990 | EP0377589A1 Pre-sensitized lithographic printing plate production |
| 07/11/1990 | CN2059131U Surface roughening electric source for offset printing aluminium plate substrate |
| 07/03/1990 | US4939068 Anodic oxidation of the surface of aluminum or aluminum alloys |
| 07/03/1990 | US4938800 Alcohol printing solution with reduced fume emission |
| 06/26/1990 | CA1270791A1 Electrochemical roughening of aluminum for printing plates in nitric acid and complex fluorine compound |
| 06/20/1990 | EP0373510A2 Process for preparing a light-sensitive lithographic printing plate |
| 06/20/1990 | EP0373474A2 Process for production of an ozone resistant flexographic printing plate |
| 06/19/1990 | US4935463 Surface composition for a substrate and method of preparation |
| 06/19/1990 | US4935332 Photosensitive element having an aluminum base and silane intermediate layer |
| 06/19/1990 | US4935071 Baking of lithographic plates |
| 06/19/1990 | US4934391 Removal of rosin, inks, resists |
| 06/13/1990 | CA2005208A1 Process for producing an ozone-resistant flexographic printing form |
| 06/06/1990 | EP0371638A1 Processing radiation sensitive members |