Presensitized plate
AssigneeFuji Photo Film Co., Ltd.
InventorsTadashi Endo, Takeshi Serikawa
Life of this patent
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Abstract
A presensitized plate having: on an aluminum support, a thermosensitive layer containing a photothermal conversion agent which absorbs infrared rays and generates heat and a water-insoluble and alkali-soluble resin, of which solubility to an alkali aqueous solution increases by heating, wherein the aluminum support has a grained structure with large undulation and a grained structure with small undulation on a surface thereof. This presensitized plate is excellent in damage resistance and sensitivity, and after the plate is processed into a lithographic plate, it is also excellent in scum resistance and press life.
Claims18
A presensitized plate comprising:
- on an aluminum support, a thermosensitive layer containing a photothermal conversion agent which absorbs infrared rays and generates heat and a water-insoluble and alkali-soluble resin, of which solubility to an alkali aqueous solution increases by heating,
- wherein the aluminum support has a grained structure with large undulation and a grained structure with small undulation on a surface thereof.
A presensitized plate comprising, on an aluminum support, a thermosensitive layer containing a photothermal conversion agent which absorbs infrared rays and generates heat and a water-insoluble and alkali-soluble resin, of which solubility to an alkali aqueous solution increases by heating,
- wherein the aluminum support has a grained structure with large undulation, a grained structure with medium undulation, and a grained structure with small undulation on a surface thereof.
Dependencies are inferred from the claim text.