| Patents for B41N 3 - Preparing for use or conserving printing surfaces (3,811) |
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| 05/29/1990 | US4929326 Electrolytic treatment apparatus |
| 05/15/1990 | US4925761 Mixture with anionic spolymer and acid |
| 05/08/1990 | CA1268729A1 Anodic aluminium oxide film and method of forming it |
| 05/03/1990 | DE3934294A1 Lithographic printing plate desensitisation - with aq. silicate soln. and aq. resin soln. to prevent discolouration |
| 05/02/1990 | EP0366020A2 Desensitizing gum lithographic plate finisher |
| 04/24/1990 | US4919774 Controlling current ratio in electrolytic current by using auxiliary electrode; surface roughening metal web |
| 04/19/1990 | DE3933969A1 Lithographic printing plate treatment - using ink receiving silver image with two or more different organic cpds. contg. two or more mercapto or thione gps. |
| 04/10/1990 | US4915800 Process for electrolytically surface-roughening aluminum support |
| 04/05/1990 | WO1990003600A1 Aqueous solutions of oleophilic compounds |
| 04/05/1990 | WO1990003419A1 Use of (c1-c5) alkyl esters of aliphatic (c8-c22) monocarboxylic acids for removing fat, inks and the like from printing machines |
| 04/04/1990 | CN1040950A Zinc-plate printing plate and its prodn process |
| 03/29/1990 | DE3931530A1 Non-drying post-treatment compsn. for printing plates - contains water-sol., non-ionic film-forming resin, esp. PVP, anionic surfactant, hydrophilising salt, humectant and water |
| 03/27/1990 | US4912021 Developer-finisher compositions for lithographic plates |
| 03/21/1990 | EP0359559A2 Enzyme hydrolyzed maltodextrin containing finisher/preserver/cleaner composition for lithographic printing plates |
| 03/20/1990 | US4909894 Jetting from nozzle a high pressure liquid; joining stream with slurry of fine abrasive powder |
| 03/14/1990 | EP0358113A2 Fountain solution for offset printing |
| 03/06/1990 | US4906296 Catalytic fountain solution |
| 02/27/1990 | CA1266196A1 Gumming solution for use in the burning-in of offset- printing plates and process for the production of an offset-printing plate |
| 02/20/1990 | US4902389 Process for producing aluminum support for printing plate |
| 02/07/1990 | EP0354027A2 Biodegradable, non-toxic, nonhazardous solvent composition |
| 01/30/1990 | US4897168 Process and arrangement for production of printing plate support |
| 01/23/1990 | US4895627 Ion exchange membrane |
| 01/16/1990 | US4894095 Method for washing and rinsing of used lithographic plate members |
| 01/10/1990 | EP0350405A2 Cleaning and treating unit for the maintenance of a printing machine |
| 01/10/1990 | EP0349983A2 Electrolytic treatment apparatus |
| 12/20/1989 | EP0346375A1 Plant gum material and use thereof in food products. |
| 12/13/1989 | EP0346048A2 Silver master plate recovery solution |
| 12/12/1989 | US4886553 Cleaner for lithographic printing plates |
| 12/05/1989 | US4885230 Burn-in gumming composition for offset printing plates |
| 11/27/1989 | EP0346375A4 Plant gum material and use thereof in food products. |
| 11/14/1989 | US4880555 Enzyme hydrolyzed maltodextrin containing finisher/preserver/cleaner composition for lithographic printing plates |
| 10/24/1989 | US4876118 Negative correction of gravure printing plates |
| 10/17/1989 | US4874426 Surface tensiometer and concentration controlling device |
| 10/11/1989 | EP0336673A2 Dampening water composition for lithographic printing and additive for dampening water |
| 10/10/1989 | US4873174 To remove the non-image portions after exposing photographic element to actinic radiation to form a latent image |
| 10/10/1989 | US4872946 Method of manufacturing supports for lithographic printing plate |
| 09/12/1989 | US4865951 Bilayered anodized aluminum support, method for the preparation thereof and lithographic printing plate containing same |
| 09/12/1989 | US4865646 Offset fountain solution to replace isopropyl alcohol |
| 08/22/1989 | US4859290 Anodized aluminum substrate, sol coating containing nuclei for precipitating silver from complex |
| 08/09/1989 | EP0326715A2 Developer/finisher compositions for litographic plates |
| 08/08/1989 | US4854969 Lithographic fountain solutions |
| 08/01/1989 | US4853093 Aluminum or an aluminum alloy support material for use in offset printing plates |
| 07/25/1989 | US4851091 Process for producing support for lithographic printing plate |
| 07/11/1989 | US4847182 Method for developing a photopolymer printing plate using a developer comprising terpene hydrocarbons |
| 07/05/1989 | EP0322658A1 Damping solution for offset printing |
| 06/20/1989 | US4841040 Phosphated, oxidized starch and use of same as dispersant in aqueous solutions and coating for lithography |
| 06/20/1989 | US4840875 Desensitizing gum for lithographic printing plate comprising a polybasic and monoester of polysaccharide |
| 06/20/1989 | US4840713 Process for the electrochemical roughening of aluminum for use in printing plate supports |
| 06/20/1989 | US4840709 Single-stage electrochemical image-forming process for reproduction layers |
| 06/20/1989 | CA1256059A1 Electrochemical roughening of aluminum for printing plates in hydrochloric acid and complex fluoride compound |
| 06/20/1989 | CA1256058A1 Electrochemical roughening of aluminum for printing plates in hydrochloric acid and hydrofluoric acid |
| 06/14/1989 | EP0319989A2 Phosphated, oxidized starch and use of same as dispersant in aqueous solutions and coating for lithography |
| 06/08/1989 | DE3838334A1 Process for the production of an aluminium base for a lithographic printing plate |
| 06/07/1989 | EP0318820A2 Process for anodising surfaces of aluminium or aluminium alloys |
| 06/06/1989 | US4837122 Deleting fluid for printing plates and method for deletion |
| 06/06/1989 | US4836950 Liquid for removing printing and screen printing inks: butyrolactone and/or N-methyl-2-pyrrolidone and propylene glycol derivative |
| 05/31/1989 | EP0317866A1 Process for producing aluminum support for printing plate |
| 05/31/1989 | EP0317736A2 Surface tension measuring method and concentration controlling device utilizing a surface tensiometer |
| 05/30/1989 | US4834844 Process for the selective additive correction of voids in copying layers |
| 05/30/1989 | US4834797 Fat-desensitizing composition for litho printing plates comprising phytic acid, polyethylene glycol and a glycol compound |
| 05/24/1989 | EP0317362A2 Lipophobicating solution for electrophotographic plates for offset printing |
| 05/23/1989 | US4833065 Aluminum sheets, sodium aluminates |
| 05/18/1989 | DE3836810A1 Process for the production of an aluminium base (support, carrier) for a printing plate |
| 05/17/1989 | EP0316240A1 Bilayered anodized aluminium support, method for the preparation thereof and lithographic printing plate containing same |
| 05/16/1989 | US4829897 Automatic cleaner for offset printing blanket |
| 04/25/1989 | US4824757 Process for preparing positive-acting photosensitive lithographic aluminum printing plate precursor using nitric acid electrokyte for graining |
| 04/25/1989 | US4824535 Process for the electrochemical graining of aluminum for use in printing plate supports |
| 03/28/1989 | CA1251881A1 Lithographic water based fountain solution concentrates |
| 03/15/1989 | EP0306636A1 Pad printing press for transferring a predifined quantity of printing products |
| 03/14/1989 | US4811661 Dampening method and apparatus using an air nozzle and mist generator |
| 03/09/1989 | WO1989001871A1 Pre-sensitized lithographic printing plate production |
| 03/01/1989 | EP0304662A1 Damping solution for lithographic printing plate and method using it |
| 02/23/1989 | WO1989001410A1 Printing pad device for transferring specific quantities of printing medium per unit area |
| 02/15/1989 | CN1031099A Stripping liquid for regenerating prepainted relief photosensitive plate |
| 02/01/1989 | EP0301073A1 A method of producing a printing plate and a printing plate thereby produced |
| 01/31/1989 | US4801527 Presensitized O-quinone diazide plate having an anodized aluminum base with an amine compound containing hydrophilic layer |
| 01/24/1989 | CA1249119A1 Method for closing the gap between the ends of gravure printing plates clamped on forme cylinders |
| 01/17/1989 | US4798627 Dampening agent for offset printing |
| 12/14/1988 | EP0294611A1 Process for the selective additive correction of defects in copying layers |
| 12/14/1988 | EP0294610A1 Single-stage electrochemical process for the production of images for reproduction layers |
| 12/07/1988 | EP0293596A2 Correction fluid and process for the treatment of scratches on lithographic printing plates |
| 11/30/1988 | EP0292801A2 Process for the electrochemical graining of aluminium for supports for printing plates |
| 11/23/1988 | EP0291760A2 Printing plate supports and process and apparatus for their manufacture |
| 11/22/1988 | US4786581 Gumming solution for use in the burning-in of offset-printing plates comprising water, a hydrophilic polymer and an organic acid derivative |
| 11/22/1988 | US4786381 Anodizing |
| 11/17/1988 | DE3814021A1 Covering appliance for the partial coating of cylinders |
| 11/15/1988 | CA1244793A1 Anodizing aluminum strip in bath between electrodes |
| 11/10/1988 | DE3713801A1 Printing forme material for lithoprinting |
| 11/09/1988 | EP0290245A2 Baking of lithographic plates |
| 11/09/1988 | EP0289844A2 Support material and process for its manufacture |
| 11/08/1988 | US4783395 Polymethyl vinyl ether and maleic acid copolymer |
| 11/01/1988 | CA1243981A1 Process for producing aluminum support for lithographic printing plate |
| 10/19/1988 | EP0178297B1 Method and plants for the continuous unilateral anodic oxidation of aluminium bands and utilization thereof to make offset printing plates |
| 10/18/1988 | US4778616 Scratch corrector for lithographic printing plates |
| 10/11/1988 | US4777109 Render surface hydrophilic |
| 10/05/1988 | EP0284970A2 Process for the negative correction of intaglio printing forms, and correction means therefor |
| 09/21/1988 | EP0205505B1 A liquid for removing printing and screen printing inks |
| 09/07/1988 | WO1988006627A1 Plant gum material and use thereof in food products |
| 09/06/1988 | US4769072 Method and means for indicating the condition of a universal fountain solution for planographic printing |
| 08/25/1988 | WO1988006102A1 A method of producing a printing plate and a printing plate thereby produced |