Support for lithographic printing plate and presensitized plate
AssigneeFuji Photo Film Co., Ltd.
InventorsTadashi Endo, Yoshitaka Masuda, Atsuo Nishino, Akio Uesugi, Katsuyuki Teraoka, Hisashi Hotta
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Abstract
Disclosed is a presensitized plate, having an anodized layer and recording layer provided on a support for a lithographic printing plate, wherein the anodized layer is provided by subjecting an aluminum plate to graining and anodizing treatments. The presensitized plate has wide development latitude, makes it difficult for scratch-like non-image portions to be generated and facilitates handling in usual operation.
Claims2
A support for a lithographic printing plate, provided by subjecting an aluminum plate to graining treatment and anodizing treatment, wherein when a diameter and a density of a micropore present in an anodized layer are respectively d(m) and ρ (number of micropores/m2), both d and ρ satisfy an expression (i) below:
- 0.5<π(d/2)2×ρ<2.0 (i).
Dependencies are inferred from the claim text.