Developer for light-sensitive material
AssigneeDainippon Ink and Chemicals, Inc.
InventorsYasuhiko Kojima, Yasuo Shigemitsu
Life of this patent
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Abstract
A developer for light-sensitive material capable of processing in common a negative-working light-sensitive lithographic printing plate and a positive-working light-sensitive printing plate as well as a developing agent-containing type silver halide photographic material, is disclosed. The developer comprises an alkali agent, an anionic surface active agent, an antifoggant for a silver halide photographic material, and an alkylene oxide addition product (molecular weight of from 130 to 1200) of an aromatic amine or an aralkyl amine, and has pH of the range of from 11.5 to 13.5.
Claims9
A developer for light-sensitive lithographic printing plates and developing agent-containing silver halide photographic materials, which comprises an alkali agent, an anionic surface active agent, an antifoggant for a silver halide photographic material, and an alkylene oxide addition product having a molecular weight of from 130 to 1200 of an aromatic amine or an aralkyl amine, said developer having a pH in the range of from 11.5 to 13.5.
A developer for light-sensitive material comprising an alkali agent, an anionic surface active agent, an antifoggant for a silver halide photographic material, and an amino compound represented by formula (I), and having pH in the range of from 11.5 to 13.5:
- ##STR8## wherein A represents an aromatic group which may be substituted;
- R.sub.1 represents a hydrogen atom, an alkyl group, or ##STR9## R.sub.2 and R.sub.3 each represents a hydrogen atom or a methyl group;
- m represents 0 or an integer of from 1 to 4;
- and l and n each represents an integer of from 1 to 4.
Dependencies are inferred from the claim text.