Invention Grant
US07306890B2 Aluminum alloy plate for lithographic printing form and method for production thereof and lithographic printing form 有权
用于平版印刷形式的铝合金板及其生产方法和平版印刷形式

Aluminum alloy plate for lithographic printing form and method for production thereof and lithographic printing form
Abstract:
The present invention provides an aluminum alloy plate for use as a lithographic printing plate having an improved uniformity of a surface roughened by electrolytic etching and wherein streaking does not occur, and a method for producing the same. The present invention is characterized in comprising, in wt %, Fe: 0.1 to 0.6%; Si: 0.02 to 0.2%; Cu: 0.001 to 0.02%; Zn: 0.01 to 0.1%; Mg: 0.005 to 0.1%; Ti: 0.001 to 0.05%, and the remainder Al and inevitable impurities, and an average value of the crystal particle size is 60 μm or less in a direction perpendicular to the rolling direction.
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