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US 6,900,004 B2Granted
Concentrated color developer composition used for silver halide photographic sensitized material and processing method by use thereof
AssigneeKonica Corporation
InventorWataru Satake
Life of this patent
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Abstract
A one-part photographic developing concentrate comprising: (i) a paraphenylene diamine color developing agent; and (ii) a water-soluble organic solvent, wherein a molar ratio of sodium ion to potassium ion is at least 3, and a molar ratio of sulfate ion to carbonate ion is at least 0.25.
Claims6
A one-part photographic developing concentrate comprising:
- (i) a paraphenylene diamine color developing agent;
- (ii) a water-soluble organic solvent;
- and
- (iii) sodium ions, potassium ions, sulfate ions and carbonate ions,
- wherein a molar ratio of sodium ion to potassium ion is at least 3, and a molar ratio of sulfate ion to carbonate ion is at least 0.25.
2 more elements
A one-part photographic developing concentrate comprising:
- (i) a paraphenylene diamine color developing agent;
- and
- (ii) a water-soluble organic solvent,
- wherein a molar ratio of sodium ion to potassium ion is at least 3, and a molar ratio of sulfate ion to carbonate ion is at least 0.25;
- and
- wherein a compound represented by formulas (A-I) to (A-IV) is further contained:
- wherein A11, A12, A13 and A14, which may be the same or different , each represents —CH2OH, —PO3(M6) or —COOM7;
- M6 and M7 each represents a hydrogen atom, an ammonium group, an alkaline metal atom or an organic ammonium group;
- X represents an alkylene group having 2 to 6 carbon atoms or —(B1O)n—B2—;
- n represents an integer of 1 to 6;
- and B1 and B2, which may be the same or different , each represents an alkylene group having 1 to 5 carbon atoms,
- wherein A21, A22, A23 and A24, which may be the same or different, each represents —CH2OH, —COOM1 or —PO3(M2)2;
- M1 and M2 each represents a hydrogen atom, an ammonium group, an alkaline metal or an organic ammonium group;
- X1 represents a straight or branched alkylene group having 2 to 6 carbon atoms, a saturated or unsaturated organic group which forms a ring, or —(B11O)n5—B12—;
- n5 represents an integer of 1-6;
- B11 and B12, which may be the same or different, each represents an alkylene group having 1-5 carbon atoms;
- and n1, n2, n3 and n4, which may be the same or different, each represents an integer of not less than 1 and at least one of n1, n2, n3 and n4 is 2 or more,
- wherein A1, A2, A3 and A4, which may be the same or different, each represents a hydrogen atom, a hydroxyl group, —COOM3, —PO3(M4)2, —CH2COOM5, —CH2OH or a lower alkyl group, however, at least one of A1 to A4 represents —COOM3, —PO3(M4)2, or —COOM5;
- M1, M2, M3, M4, and M5 each represents a hydrogen atom, an ammonium group, an alkaline metal atom or an organic ammonium group;
- and n7 represents an integer of 0 to 2,
- wherein, A5, A6, A7, A8 and A9, which may be the same or different, each represents —COOM3 or —PO3M4M5;
- M3, M4 and M5, which may be the same or different, each represents a hydrogen atom or an alkaline metal atom;
- and n represents an integer of 1 or 2.
20 more elements
Dependencies are inferred from the claim text.