Color photographs and method for preparation of the same

Claim 2

A color photograph containing a storability-improving compound capable of forming a chemical bond with an aromatic amine series color developing agent that remains in a photographic material after having been processed for color development to give a chemically inactive and substantially colorless compound in at least one photographic layer on a support.

Claim 3

A color photograph as claimed in claim 1, wherein the storability-improving compound is a compound capable of forming a chemical bond with an aromatic amine series color developing agent that remains in a photographic material after having been processed, under the condition of a pH of 8 or less, to give a chemically inactive and substantially colorless compound.

Claim 4

A color photograph as claimed in claim 2, wherein the storability-improving compound is selected from compounds of general formulae (1) and (II): in which R, and R 2 each represents an aliphatic group, an aromatic group or a heterocyclic group; X represents a group capable of reacting with an aromatic amine developing agent to be removed; A represents a group capable of reacting with an aromatic amine developing agent to form a chemical bond; n represents 1 or 0; B represents a hydrogen atom, an aliphatic group, an aromatic group, a heterocyclic group, an acyl group or a sulfonyl group; Y represents a group capable of accelerating the addition of an aromatic amine developing agent to the compound of the formula (II); and R 1 and X, and Y and R 2 or B may be bonded together to from a cyclic structure.

Claim 5

A color photograph as claimed in claim 1, wherein the storability-improving compound has a secondary reaction rate constant k 2 (80°C) with p-anisidine in the range of from 1.0 liter/mol•sec to 1 × 10 -5 liter/mol.sec.

Claim 6

A color photograph as claimed in claim 4, wherein the storability-improving compound has a secondary reaction rate constant k 2 (80°C) with p-anisidine of from 1 × 10 -1 liter/mol•sec to 1 x 10- 4 liter/mol.sec.

Claim 7

A color photograph as claimed in claim 3, wherein the compound of formula (I) is selected from compounds of general formulae (I-a), (I-b), (I-c) and (I-d) and has a secondary reaction rate constant k 2 -(80°C) with p-anisidine in the range of from 1 × 10 -1 liter/mol.sec to 1 × 10 -5 liter/mol.sec. where R 1 has the same meaning as R 1 in formula (I); Link is a single bond or -O-; Ar denotes an aromatic group having the same meaning as defined for Ri, R 2 and B, except that no group useful as a photographic reducing agent such as a hydroquinone derivative or a catechol derivative is released as a result of reaction with an aromatic amine series developing agent; Ra, Rb and Rc, which may be the same or different, each represents a hydrogen atom, or an ali phatic group, an aromatic group or a heterocyclic group having the same meaning as defined fro R 1 , R 2 and B; Ra, Rb and Rc may further represent an alkoxy group, an aryloxy group, a heterocyclic oxy group, an alkylthio group, an arylthio group, a heterocyclic thio group, an amino group, an alkylamino group, an acyl group, an amino group, an alkylamino group, an acyl group, an amino group, a sulfonamido group, a sulfonyl group, an alkoxycarbonyl group, a sulfo group, a carboxyl group, a hydroxyl group, an acyloxy group, a ureido group, a urethane group, a carbamoyl group or a sulfamoyl group, provided that Ra and Rb, or Rb and Rc, may combine to form a 5-to 7-membered hetero ring, which hetero ring may be further substitutted by a substituent, or form a spiro ring, a bicyclo ring, or may be fused with an aromatic ring; 2 1 and Z z denote the non-metallic atomic group necessary for forming a 5-to 7-membered hetero ring, which hetero ring may be further substituted by a substituent, or form a spiro ring, a bicyclo ring, or may be fused with an aromatic ring, except that Z 1 is not such a group that it releases a coupler, a 1-phenyl-3-pyrazolide as a result of reaction with an aromatic amine series developing agent.

Claim 8

A color photograph as claimed in claim 6, wherein the compound of formula (I) contained in the photographic material contains compound of general formula (I-a) or (I-b) having the total number of at least 13 carbon atoms.

Claim 9

A color photograph as claimed in claim 1, wherein the photographic layer contains th storability-improving compound together with a yellow coupler, a magenta coupler or a cyan coupler.

Claim 10

A color photograph as claimed in claim 8, wherein the coupler is selected from compounds of general formulae (III), (IV), (V), (VI) and (VII): in which R' 1 , R 4 and R 5 each represents an aliphatic group, an aromatic group, a heterocyclic group, an aromatic amino group or a heterocyclic amino group; R' 2 represents an aliphatic group; R 3 and R 6 each represents a hydrogen atom, a halogen atom, an aliphatic group, an aliphatic-oxy group or an acylamino group; R 5 ' represents a hydrogen atom or has the same meaning as R 5 ; R 7 and R 9 each represents a substituted or unsubstituted phenyl group; R 8 represents a hydrogen atom, an aliphatic or aromatic acyl group or an ali phatic or aromatic sulfonyl group; R 10 represents a hydrogen atom or a substituent; Q represents a substituted or unsubtituted N-phenylcarbamoyl group; Za and Zb each represents a methine group, a substituted methine group or = N-; Y 1 , Y 2 , Y 3 , Y 4 and Y 5 each represents a hydrogen atom or a group capable of being removed in coupling reaction with an oxidized product of a developing agent; R' 2 and R 3 , and R 5 and R 6 each may form a 5-, 6-or 7-membered ring; R' 1 , R' 2 , R 3 or Y 1 ; R 4 , Rs, R 6 or Y 2 ; R 7 , R s , R 9 or Y 3 ; Rio, Za, Zb or Y 4 ; and Q or Y 5 each may form a dimer or a higher polymer.

Claim 11

A color photograph as claimed in claim 1, wherein the photographic layer further contains an anti-fading agent together with the storability-improving agent.

Claim 12

A color photograph as claimed in claim 10, wherein the anti-fading agent is an aromatic compound of a general formula (VIII): wherein R 1 " represents a hydrogen atom, an alkyl group, an alkenyl group, an aryl group, a heterocyclic group or a group of where R 7 ", R 8 " and R 9 " may be the same or different and each represents an alkyl group, analkenyl group, an aryl group, an alkoxy group, an alkenoxy group or an aryloxy group; Rz", R 3 ", R 4 ", R 5 " and R s " may be the same or different and each represents a hydrogen atom, an alkyl group, an alkenyl group, an aryl group, an acylamino group, an alkylamino group, an alkylthio group, an arylthio group, an alkoxycarbonyl group, an aryloxycarbonyl group, a halogen atom or -O-R 1 "', where R 1 '" has the same meaning as Ri"; or R 1 " and Rz" may be bonded together to form a 5-membered ring, a 6-membered ring or a spiro ring; or R 2 " and R 3 ", or R 3 " and R 4 " may be bonded toghether to from a 5-membered ring, a 6-membered ring or a spiro ring.

Claim 13

A color photograph as claimed in claim 11, wherein the amount of the compound of formula (VIII) to be added is from 10 to 400 mol% to the coupler.

Claim 14

A color photograph as claimed in claim 11, wherein the amount of the compound of formula (VIII) to be added is from 30 to 300 mol% to the coupler.

Claim 15

A color photograph as claimed in claim 10., wherein the anti-fading agent is an amine compound of a general for mula (IX): in which R'io represents a hydrogen atom, an alkyl group, an alkenyl group, an alkynyl group, an acyl group, a sulfonyl group, a sulfinyl group, an oxy-radical or a hydroxyl group; R11, R 12 , R 13 and Ri 4 may be the same or different and each represents a hydrogen atom or an alkyl group; and A represents a non-metallic atomic group necessary for forming a 5-membered, 6-membered or 7-membered ring.

Claim 16

A color photograph as claimed in claim 14, wherein the amount of the compound of formula (IX) to be added is from 10 to 400 mol% to the coupler.

Claim 17

A color photograph as claimed in claim 14, wherein the amount of the compound of formula (IX) to be added is from 30 to.300 mol% to the coupler.

Claim 18

A color photograph as claimed in claim 10, wherein the anti-fading agent is a metal complex comprising a center atom of copper, cobalt, nickel, palladium or platinum and at least on orgainc ligand having two or more conformations.

Claim 19

A color photograph as claimed in claim 17, wherein the amount of the metal complex to be added is from 1 to 100 mol% to the coupler.

Claim 20

A color photograph as claimed in claim 17, wherein the amount of the metal complex to be added is from 3 to 40 mol% to the coupler.

Claim 23

A method for preparation of color photographs as claimed in claim 20, whrein the phtographic material contains the storability-improving compound in at least one photographic layer.

Claim 24

A method for preparatio of color photographs as claimed in claim 21, wherein the content of the said storability-improving compound in the photographic material is within the range of from 1 x 10- 2 to 10 mols per mol of the color image-forming coupler.

Claim 25

A method for preparation of color photographs as claimed in claim 20, wherein said color developer contains benzyl alcohol in an amont of 2.0 ml/liter or less.

Claim 26

A method for preparation of color photographs as claimed in claim 20, wherein said color developer contains benzyl alcohol in an amount of 0.5 ml/liter or less.

Claim 27

A method for preparation of color photographs as claimed in claim 20, wherein said color developer contains no benzyl alcohol.

Claim 29

A method for preparation of color photographs as claimed in claim 20, wherein the color development time is within the range of from 10 seconds to 2 mintues and 30 seconds or less.

Claim 30

A method for preparation of color photographs as claimed in claim 20, wherein the color development time is within the range of from 45 seconds to 2 mintues.