发明授权
US5427889A Lithographic printing plate with pitted aluminum support 失效
平版印刷版,带有铝合金支架

Lithographic printing plate with pitted aluminum support
摘要:
The present invention provides a lithographic printing plate material which comprises a grained and anodized aluminum support and a silver halide emulsion layer between which physical development nuclei are provided wherein said aluminum support have 500 or more pits having a diameter of 0.03-0.30 .mu.m and an average diameter of 0.05-0.20 .mu.m per 100 .mu.m.sup.2.
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