| Patent Number |
Title Of Patent |
Date Issued |
| 7441968 |
Spray development of photosensitive plates |
October 28, 2008 |
| Excellent development of photosensitive coatings on planographic printing plates is achieved by directing a dynamic flow of fresh alkaline developer solution that impinges on a target area of the coating extending the width of the plate and floods the target area with a turbulent flo |
| 7350991 |
Universal spray processor for imaged plates |
April 1, 2008 |
| An imaged plate processor for covering the imaged coating with a turbulent flow of fresh developer solution for a short dwell time, and which preferably can be modified by the end user for development of a wide range of plates. The processor comprises a flat support surface for the p |
| 7329058 |
High flow rate development of photosensitive plates |
February 12, 2008 |
| A process for developing an imaged lithographic printing plate, including the step of delivering developing fluid to the plate at a high volumetric flow rate for a short dwell time such that the non-image is completely solubilized while the image remains unaffected by the developing flui |
| 7229739 |
Positive working thermal plates |
June 12, 2007 |
| The invention generally relates to positive-working coating compositions and to a substrate formed with a coating of that composition. Advantageous versions of the invention provide an infrared imageable, positive lithographic printing plate having a coating comprising a hydroxy subs |
| 7013806 |
Method and apparatus for applying a film of developer fluid onto a lithographic printing plate i |
March 21, 2006 |
| The invention relates to the development of lithographic printing plates and comprises the application of a thin film of developer solution to each plate in a controlled manner using a jetting printhead. Sensors and control means activate and deactivate the jetting printhead in response |
| 6905267 |
Method for reducing consumption of plate processing fluid |
June 14, 2005 |
| Disclosed herein are a method and apparatus for efficiently processing workpieces which are developed using a liquid developer. According to the invention a first set of workpieces is obtained from an imaging station, a second set of workpieces is obtained from a workpiece collection dev |
| 6905266 |
Wire wound applicator for developing fluid on a lithographic printing plate |
June 14, 2005 |
| The invention relates to the application of a uniform film of a fluid to the surface of a flat workpiece as it is being conveyed through a workstation. The invention is specifically directed to the development of lithographic printing plates and comprises the application of the thin |
| 6884561 |
Actinically imageable and infrared heated printing plate |
April 26, 2005 |
| A negative-working lithographic printing plate has a coating which is imaged by heating an area of the coating with an infrared laser and actinically reacting the coating in the heated area with ultraviolet or visible radiation. The coating contains an infrared absorber but the coati |
| 6793418 |
Method and apparatus for applying a film of fluid onto a flat surface and specifically onto a li |
September 21, 2004 |
| The invention relates to the application of a uniform film of a fluid to the surface of a flat workpiece as it is being conveyed through a workstation. The invention is specifically directed to the development of lithographic printing plates and comprises the application of the thin |
| 6720131 |
Method and apparatus for applying a film of developer fluid onto a lithographic printing plate i |
April 13, 2004 |
| The invention relates to the development of lithographic printing plates and comprises the application of a thin film of developer solution to each plate in a controlled manner using a jetting printhead which scans the plate to apply the developer solution as the plate is conveyed under |
| 6232031 |
Positive-working, infrared-sensitive lithographic printing plate and method of imaging |
May 15, 2001 |
| A positive-working, infrared imageable coating and a lithographic printing plate or other element with the coating are described. The coating is a phenolic resin containing an o-diazonaphthoquinone derivative which couples or reacts with the resin to partially insolubilize the coating an |
