Patents for B41N 3 - Preparing for use or conserving printing surfaces (3,811)
10/1991
10/23/1991EP0452954A2 Surface treatment apparatus for printing plate support
10/23/1991CN1055508A Branding-carving technique
10/09/1991EP0450199A1 Water developable diazo based lithographic printing plate
10/09/1991CN1055142A Transparent composite film used for plate making
10/09/1991CN1014224B One-step print for hot pressed raised carvings
10/08/1991US5054394 Blend of water, gum, glycol, and crosslinking agent
10/01/1991US5053319 Aqueous solutions of oleophilic compounds
09/1991
09/24/1991US5051327 Method for oil-densensitization treatment of lithographic printing plate
09/18/1991EP0446762A2 Process for making engraved plates or rollers
09/12/1991DE4105887A1 Photosensitive lithographic plate with hydrophilic coat - contg. amino phosphoric acid or phosphonic or phosphinic acid or salt, preventing stating and soiling
09/11/1991EP0445959A1 Electrolytic graining
09/10/1991CA1288722C Process for the electrochemical graining of aluminum for use as printingplate supports
09/07/1991CA2037594A1 Electrolytic graining
09/03/1991US5045157 Process for producing aluminum support for printing-plate
09/02/1991CA2035118A1 Process and device for the control of the wetting behaviour of surfaces
08/1991
08/22/1991WO1991012141A1 Composition for protecting the surface of lithographic printing plates
08/22/1991WO1991012140A1 Lithographic plates
08/20/1991US5041360 Process for producing an ozone-resistant flexographic printing form
08/20/1991US5041198 Method and an apparatus for the electrochemical roughening of a metallic surface
08/14/1991EP0441502A2 Lithographic plate finisher
08/10/1991CA2034965A1 Lithographic plate finisher
08/07/1991CN1053582A Application of strongly-magnetized water as moistener in planographic printing (offset printing)
07/1991
07/25/1991DE4001466A1 Electrochemical roughening of aluminium for printing plate mfr. - using combination of mechanical and electrochemical roughening before and/or after main electrochemical roughening stage
07/24/1991EP0437761A2 Process for the electrochemical graining of aluminum for printing plate supports
07/20/1991CA2034426A1 Process for electrochemical roughening of aluninum for printing plate supports
07/10/1991EP0435943A1 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.
07/09/1991US5029598 Process for the uniform introduction of a fluid, and apparatus for carrying out the process
06/1991
06/04/1991US5021324 Printing plate protectant
06/04/1991CA1284597C Printing plate precursors
05/1991
05/29/1991EP0429074A1 Milling head for smoothing workpieces, specially for copper plate printing cylinders
05/22/1991EP0428071A2 Method for producing substrate for PS plate
05/14/1991CA1284003C Fat-desensitizing composition for litho printing plates
05/07/1991US5013399 Method of preparing support for lithographic printing plate
05/02/1991EP0270654B1 A liquid for removing printing and screen printing inks
04/1991
04/25/1991DE3934681A1 Anodising strip material - using bath with three vertical electrodes with strip passing between them in vertical loop
04/24/1991EP0423555A1 Process and apparatus for the electrochemical graining of a metal surface
04/23/1991US5009722 Process for producing base material for an aluminum offset printing plate
04/17/1991EP0422682A2 Method for producing support for printing plate
04/09/1991US5006169 Lipophobicating solution for electrophotographic plates for offset printing
04/09/1991US5006168 Water soluble polymers as alcohol replacement in lithographic fountain solutions
03/1991
03/27/1991EP0418575A2 Process for the manufacture of plates, foils, or sheet-like materials and process for the manufacture of presensitized lithographic printing plates
03/20/1991CN1012051B Zinc-plate printing plate and its prodn process
03/13/1991EP0416861A1 Dampening solution composition for lithographic printing
03/06/1991EP0415238A2 Method of producing support for planographic printing-plate
03/05/1991US4997588 Cleaner for lithographic printing plates free of aromatic hydrocarbons
03/05/1991CA1280997C Process for the electrochemical roughening of aluminum for use inprinting plate supports
02/1991
02/27/1991EP0414189A1 Method of producing aluminum support for printing plate
02/26/1991US4996135 Desensitizing gum lithographic plate finisher
02/13/1991EP0412455A1 Dampening solution for lithographic printing
02/06/1991EP0411883A1 Dampening water composition for lithographic plate
02/05/1991US4990428 Photosensitive planographic printing plate
01/1991
01/29/1991CA1279445C Lipophobicating solution for electrophotographic plates for offset printing
01/08/1991US4983497 Treated anodized aluminum support and lithographic printing plate containing same
01/08/1991US4983478 Water-soluble addition polymer or copolymer containing sulfonic acid or sulfonate groups
01/08/1991US4982661 Organic titanates
12/1990
12/19/1990EP0403191A2 Conversion solutions for lithographic printing plates
12/19/1990CN1010897B Hydrophilic base material of offset plate, manufacture process and use
12/18/1990CA1277946C Photosensitive planographic printing plate
12/15/1990CA2017638A1 Conversion solutions for lithographic printing plates
12/12/1990EP0401601A1 Electrochemical graining of aluminum or aluminum alloy surfaces
12/11/1990US4976997 Surface composition for a substrate and method of preparation
12/11/1990US4976198 Grain structure for lithographic printing plate supports
12/05/1990CA2018180A1 Electrochemical graining of aluminum of aluminum alloy surfaces
11/1990
11/21/1990CN1047051A One-step print for hot pressed raised carvings
11/14/1990EP0397407A2 Lithographic plate finisher
11/13/1990US4970138 Trihydroxysilyl ethylphosphonic acid
11/13/1990US4970116 Substrates for presensitized plates for use in making lithographic printing plates
11/06/1990US4968584 Method for making lithographic printing plate
10/1990
10/24/1990EP0393520A1 Process for the uniform introduction of a fluid and device for carrying out this process
10/23/1990US4965168 Silver master plate recovery solution
10/21/1990CA2015007A1 Process for the uniform introduction of a fluid, and apparatus for carrying out the process
10/18/1990DE3911934A1 Printing plate with non-printing area - has colour retaining pattern applied to hydrophilic support base
10/10/1990EP0391365A1 Process for treating metal surface
10/10/1990EP0391159A2 Water soluble polymers as alcohol replacement in lithographic fountain solutions
10/09/1990CA1275068A1 Process for the electrochemical roughening of aluminum for use in printing plate supports
10/03/1990EP0390033A1 Process and apparatus for roughening a support for photosensitive layers
09/1990
09/30/1990CA2013299A1 Process and apparatus for roughening a substrate for photosensitive layers
09/26/1990EP0389283A1 Correction fluid for electrophoto plates for offset printing
09/26/1990EP0388592A2 Stripping solution for plates carrying electrophotographical images and process to strip such plates
09/19/1990EP0387750A1 Electrolytic treatment apparatus
09/05/1990EP0385015A1 Terpene-based solvents for washout of photopolymer printing plates
09/04/1990US4954173 Phytic acid, diamine, water, and mixture of dicarboxylic acids
08/1990
08/29/1990EP0384292A2 Cleaning agent and process for its preparation
08/09/1990WO1990008603A1 Dibasic esters for cleaning electronic circuits
07/1990
07/31/1990US4945004 Base material for an aluminum offset printing plate
07/31/1990CA2008548A1 Decoating solution for plates imaged by electrophotographic means and process for decoating such plates
07/24/1990CA1271958A1 Treating aluminum oxide layer with aqueous hexametaphosphate solution for producing printing plate support
07/18/1990EP0377589A1 Pre-sensitized lithographic printing plate production
07/11/1990CN2059131U Surface roughening electric source for offset printing aluminium plate substrate
07/03/1990US4939068 Anodic oxidation of the surface of aluminum or aluminum alloys
07/03/1990US4938800 Alcohol printing solution with reduced fume emission
06/1990
06/26/1990CA1270791A1 Electrochemical roughening of aluminum for printing plates in nitric acid and complex fluorine compound
06/20/1990EP0373510A2 Process for preparing a light-sensitive lithographic printing plate
06/20/1990EP0373474A2 Process for production of an ozone resistant flexographic printing plate
06/19/1990US4935463 Surface composition for a substrate and method of preparation
06/19/1990US4935332 Photosensitive element having an aluminum base and silane intermediate layer
06/19/1990US4935071 Baking of lithographic plates
06/19/1990US4934391 Removal of rosin, inks, resists
06/13/1990CA2005208A1 Process for producing an ozone-resistant flexographic printing form
06/06/1990EP0371638A1 Processing radiation sensitive members
1 ... 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39