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US 8,896,894 B2Granted
Method for forming structured microdots
AssigneeEastman Kodak Company
InventorJohn T. Anderson, III
Life of this patent
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Abstract
A method of making structured microdots (154) for printing plate registration includes forming a first plurality of square spots (156) less than or equal to 11 microns; wherein a first group (157) of the first plurality of square spots is formed in a first pattern (158); and wherein the first pattern is less than or equal to 66 microns and comprises a first microdot.
Claims12
A method of forming structured microdots on a printing plate comprising:
- forming an outer structure comprising a first plurality of square spots less than or equal to 11 microns in a first pattern;
- forming an inner section comprising a second plurality of square spots less than or equal to 11 microns and internal to the outer structure wherein a gap separates the internal and outer structure;
- and
- wherein the first pattern is less than or equal to 66 microns and comprises a first microdot.
1 more element
A method for registering printing plates comprising:
- mounting a first printing plate on a first cylindrical drum;
- forming an outer structure comprising a first plurality of square spots less than or equal to 11 microns on the first printing plate in a first pattern;
- forming an inner section comprising a second plurality of square spots less than or equal to 11 microns and internal to he outer structure wherein a gap separates the internal and outer structure;
- wherein the first pattern is less than or equal to 66 microns and comprises a first structured microdot;
- mounting a second printing plate on a second cylindrical drum;
- forming a second plurality of square spots less than or equal to 11 microns on the second printing plate;
- wherein a first group of the second plurality of square spots is formed in a second pattern;
- wherein the second pattern is less than or equal to 66 microns and comprises a second structured microdot;
- printing the first structured microdot on a media with the first printing plate;
- printing the second structured microdot on the media with the second printing plate;
- acquiring an image of the printed first and second microdots;
- analyzing the image of the printed first and second microdots;
- and
- determining a registration correction.
11 more elements
Dependencies are inferred from the claim text.