Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Making printing plates
Patent
1986-07-30
1988-08-09
Martin, Roland E.
Radiation imagery chemistry: process, composition, or product th
Imaging affecting physical property of radiation sensitive...
Making printing plates
430309, G03C 702
Patent
active
047627719
ABSTRACT:
The present invention provides a method of treating photosensitive printing plate, which comprises subjecting a photosensitive lithographic plate to exposure, development and burning-in treatment, characterized in that an aqueous solution containing phytic acid and aminobenzenesulfonic acid is applied to the lithographic plate after the development but prior to the burning-in treatment and then the burning-in treatment is conducted in the presence of these compounds.
According to the invention, there can be prepared a lithographic plate free from background stain and having an excellent ink-receptive property in its image-forming area.
REFERENCES:
patent: 3307951 (1967-03-01), Adams et al.
patent: 4230492 (1980-10-01), Thomas
patent: 4294910 (1981-10-01), Wielinga
patent: 4329422 (1982-05-01), Langlais
patent: 4355096 (1982-10-01), Walls
Hagiwara Hitoshi
Matsumoto Hiroshi
Doody Patrick A.
Fuji Photo Film Co. , Ltd.
Martin Roland E.
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