Title:
LITHOGRAPHIC PRINTING PLATE HAVING SMOOTH AND LUSTROUS SURFACE
Document Type and Number:
Japanese Patent JP3801708
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain an aluminum plate for a lithographic printing plate which has a smooth and lustrous surface roughened electrochemically and anodized and therefore enables attainment of an enhanced image contrast when a lithographic printing image is formed on the surface, and a manufacture thereof.
SOLUTION: An aluminum plate for lithographic printing which has a structure of a surface so prepared as to have threads and roots being uniform substantially and to contain parameters Ra, Rz, Rt and Rp of surface roughness, Ra being about 0.10-0.50μm, Rz about 0.00-5.00μm, Rt about 0.00-6.00μm and Rp about 0.00-4.00μm. It is preferable that a tristimulus coordinate value L of this surface is about 35.00-75.00, (a) thereof about -4.00-+4.00 and (b) about -4.00-+4.00.
Inventors:
Major, S. Dillon
Gear Heart, Sprint Schnick
Jose, hey Gonzalez
Gear Heart, Sprint Schnick
Jose, hey Gonzalez
Application Number:
JP32410496A
Publication Date:
July 26, 2006
Filing Date:
December 04, 1996
Export Citation:
Assignee:
AGFA CORPORATION
International Classes:
B41N1/08; G03F7/021; B41N3/03; C23F1/36; C23F3/02; C23G1/22; C25D11/08; C25F3/04; G03F7/00; G03F7/09; (IPC1-7): B41N1/08; B41N3/03; C23F1/36; C23F3/02; C23G1/22; C25D11/08; C25F3/04; G03F7/00; G03F7/021; G03F7/09
Domestic Patent References:
| JP7068966A | ||||
| JP7089041A | ||||
| JP1304993A |
Attorney, Agent or Firm:
Kenji Yoshitake
Yukitaka Nakamura
Konno Akio
Noritaka Yokota
Yukitaka Nakamura
Konno Akio
Noritaka Yokota
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