Aluminum alloy sheet for lithographic printing plate

The present invention provides an aluminum alloy sheet for a lithographic printing plate which allows pits to be uniformly formed by electrochemical roughening, and excels in strength and heat softening resistance. The aluminum alloy sheet for a lithographic printing plate includes 0.1-0.3% of Mg, m...

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Bibliographic Details
Main Authors HIBINO ATSUSHI, OUGI HIROSHI
Format Patent
LanguageEnglish
Published 20.01.2005
Edition7
Subjects
ALLOYS
CHEMISTRY
FERROUS OR NON-FERROUS ALLOYS
LINING MACHINES
MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING,INKING, DAMPING, OR THE LIKE
METALLURGY
PERFORMING OPERATIONS
PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
PRINTING
PRINTING PLATES OR FOILS
STAMPS
TRANSPORTING
TREATMENT OF ALLOYS OR NON-FERROUS METALS
TYPEWRITERS
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Summary:The present invention provides an aluminum alloy sheet for a lithographic printing plate which allows pits to be uniformly formed by electrochemical roughening, and excels in strength and heat softening resistance. The aluminum alloy sheet for a lithographic printing plate includes 0.1-0.3% of Mg, more than 0.05%, but 0.5% or less of Zn, 0.2-0.6% of Fe, 0.03-0.15% of Si, 0.02% or less of Cu, and 0.003-0.05% of Ti, the remainder being Al and impurities. The aluminum alloy sheet may include more than 0.05%, but 0.3% or less of Mn.
Bibliography:Application Number: US20040855868