Support for lithographic printing plate and presensitized plate

Details Support for lithographic printing plate and presensitized plate Support for lithographic printing plate and presensitized plate

2006-05-23

2006-05-23

Watkins, III, William P. (Department: 1772)

Stock material or miscellaneous articles

Structurally defined web or sheet

Continuous and nonuniform or irregular surface on layer or...

C428S156000, C428S212000, C428S220000, C430S278100, C101S453000, C101S454000

Reexamination Certificate

active

07048988

ABSTRACT:
The first embodiment is a support for a lithographic printing plate, wherein the surface area ratios obtained from three-dimensional data by use of an atomic force microscope meets the following requirements (1-i) to (1-iii).The second embodiment is a support for a lithographic printing plate, wherein the aforementioned surface area ratios and a steepness meets the following requirements (2-i) to (2-ii).The third embodiment is a support for a lithographic printing plate, wherein the aforementioned surface area ratios meets the following requirements (4-i) to (4-iii).(1-i) a surface area ratio ΔS50(50)is 20 to 90%,(1-ii) a surface area ratio ΔS50(2-50)is 1 to 30%, and(1-iii) a surface area ratio ΔS50(0.2-2)is 5 to 40%,(2-i) a surface area ratio ΔS50(50)is 30 to 60%, and(2-ii) a steepness a4550(0.2-2)is 5 to 40%,(4-i) a surface area ratio ΔS5(5)is 20 to 90%,(4-ii) a surface area ratio ΔS5(0.2-5)is 5 to 40%, and(4-iii) A surface area ratio ΔS5(0.02-0.2)is 15 to 70%.

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