EP0353714A2 — Silver halide photographic photosensitive materia…

Claim 1

Independent Claim 119 words

A light-sensitive silver halide material composed of a support having thereon at least one light-sensitive silver halide emulsion layer, at least one layer of the light-sensitive silver halide emulsion layer or an adjacent layer thereto containing an oil droplet dispersion in a hydrophilic binder, the oil droplets containing the combination of (a) a polymer insoluble in water and soluble in an organic solvent; (b) a high boling point organic solvent having a viscosity at 25 C of at least 500 cp and a boiling point of at least 120 . C; and (c) at least one coupler capable of forming a nondiffusible cyan dye by a coupling reaction with an oxidized form of a primary aromatic amine developing agent.

Claim 2

Dependent Claim 119 words

A light-sensitive silver halide material composed of a support having thereon at least one light-sensitive silver halide emulsion layer, at least one layer of the light-sensitive silver halide emulsion layer or an adjacent layer thereto containing an oil droplet dispersion in a hydrophilic binder, the oil droplets containing the combination of (a) a polymer insoluble in water and soluble in an organic solvent; (b) a high boling point organic solvent having a viscosity at 25 C of at least 500 cp and a boiling point of at least 120 . C; and (c) at least one coupler capable of forming a nondiffusible cyan dye by a coupling reaction with an oxidized form of a primary aromatic amine developing agent.

Claim 3

Dependent Claim 115 words

The light-sensitive material as claimed in claim 1, wherein said coupler is represented by formula (I): wherein Y represents -NHCO- or -CONH-, R 1 represents a substituted or unsubstituted aliphatic group, a substi tuted or unsubstituted aromatic group, a substituted or unsubstituted heterocyclic group or a substituted or unsubstituted amino group; X represents hydrogen, a halogen atom, a substituted or unsubstituted aliphatic group, a substituted or unsubstituted alkoxy group or a substituted or unsubstituted acylamino group; R 2 represents a substituted or unsubstituted alkyl group or a substituted or unsubstituted acylamino group; X and R 2 may be linked to form a 5-membered, 6-membered or 7-membered ring; and Z, represents hydrogen or a coupling-off group.

Claim 4

Dependent Claim 84 words

The light-sensitive material as claimed in claim 2, wherein each said substituted group is substituted with at least one substituent selected from the group consisting of an alkyl group, an aryl group, an alkyloxy group, an aryloxy group, a carboxyl group, an alkylcarbonyl group, an arylcarbonyl group, an alkyloxycarbonyl group, an aryloxycarbonyl group, an acyloxy group, a sulfamoyl group, a carbamoyl group, a sulfonamido group, an acylamino group, an imido group, a hydroxyl group, a cyano group, a nitro group and a halogen atom.

Claim 5

Dependent Claim 68 words

The light-sensitive material as claimed in claim 2, wherein said coupling-off group represented by Z 1 is selected from the group consisting of a halogen atom, an alkoxy group, an aryloxy group, an acyloxy group, a sulfonyloxy group, an amido group, an alkoxy-carbonyloxy group, an aryloxycarbonyloxy group, an aliphatic thio group, an aromatic ' thio group, an imido group, a nitrogen-containing heterocyclic group, and an aromatic azo group.

Claim 6

Dependent Claim 19 words

The light-sensitive material as claimed in claim 1, wherein R 2 is a methyl group or an ethyl group.

Claim 7

Dependent Claim 19 words

The light-sensitive material as claimed in claim 5, wherein said coupler comprises an oxyindole ring or an imidazol-2-one ring.

Claim 8

Dependent Claim 35 words

The light-sensitive material as claimed in claim 3, wherein R 2 represents an alkyl group containing 1 to 15 carbon atoms; Z 1 represents hydrogen or a halogen atom; and X represents a halogen atom.

Claim 9

Dependent Claim 34 words

The light-sensitive material as claimed in claim 1, wherein said oil droplets comprise said coupler in a weight ratio of from 1 x 10- 3 to about 1 mol per mol of silver halide.

Claim 10

Dependent Claim 133 words

The light-sensitive material as claimed in claim 1, wherein said high boiling point organic solvent is selected from a member consisting of formulae (II), (III), (IV), (V), (VI) and (Vll): W 1 -COOW 2 (III) wherein W 1 , W 2 and W 3 each represents a substituted or unsubstituted alkyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted aryl group or a substituted or unsubstituted heterocyclic group; W 4 represents Wi, -O-W 1 or -S-W i ; n is an integer of 1 to 5; Ws represents a substituted or unsubstituted alkyl group, a substituted or unsubstituted cycloalkyl group or a substituted or unsubstituted aryl group, said group represented by Ws containing at least 12 carbon atoms; and X represents a halogen atom.

Claim 11

Dependent Claim 42 words

The light-sensitive material as claimed in claim 1, wherein the boiling point of said high boiling point organic solvent is at least 140 C, and the viscosity of said high boiling point organic solvent at 25 C is at least 700 cp.

Claim 12

Dependent Claim 24 words

The light-sensitive material as claimed in claim 11, wherein the boiling point of said high boiling point organic solvent is at least 160" C.

Claim 13

Dependent Claim 27 words

The light-sensitive material as claimed in claim 11, wherein said high boiling point organic solvent is a solid with a melting point of at least 25 C.

Claim 14

Dependent Claim 23 words

The light-sensitive material as claimed in claim 10, wherein said high boiling point organic solvent is selected from the formula (II) or (IIII).

Claim 15

Dependent Claim 29 words

The light-sensitive material as claimed in claim 10, wherein said high boiling point organic solvent is a dialkyl ester or a dicycloalkyl ester of phthalic acid or phosphoric acid.

Claim 16

Dependent Claim 32 words

The light-sensitive material as claimed in claim 1, wherein said oil droplets comprise said high boiling organic solvent in a weight of 0.05 to 20 based on a weight of said coupler.

Claim 17

Dependent Claim 22 words

The light-sensitive material as claimed in claim 1, wherein said polymer has a relative fluorescence yield K value of at least 0.10.

Claim 18

Dependent Claim 27 words

The light-sensitive material as claimed in claim 1, wherein said polymer is a vinyl polymer or an acrylic polymer having a molecular weight of at most 150,000.

Claim 19

Dependent Claim 23 words

The light-sensitive material as claimed in claim 17, wherein said polymer is an acrylamide polymer having a molecular weight of at most 100,000.

Claim 20

Dependent Claim 20 words

The light-sensitive material as claimed in claim 1, wherein said light-sensitive silver halide emulsion layer comprises said oil droplet dispersion.

Claim 21

Dependent Claim 16 words

The light-sensitive material as claimed in claim 1, wherein said support is a reflective type support.

Claim 22

Dependent Claim 47 words

The light-sensitive material as claimed in claim 2, wherein at least one light-sensitive silver halide emulsion comprises essentially silver iodide free silver halide in which at least 80 mol% (average value) of all the silver halide in the same silver halide emulsion layer consists of silver chloride.

Claim 23

Dependent Claim 37 words

The light-sensitive material as claimed in claim 2, wherein said silver iodide free silver halides comprise from 0 to 1 mol% of silver iodide, 95 mol% or more of silver chloride and the remainder of silver bromide.

Claim 24

Independent Claim 140 words

A method of forming a color image comprising developing an exposed light-sensitive silver halide photographic material composed of a support having thereon at least one light-sensitive silver halide emulsion layer, at least one layer of the light-sensitive silver halide emulsion layer or an adjacent layer thereto containing an oil droplet dispersion in a hydrophilic binder, the oil droplets containing the combination of (a) a polymer insoluble in water and soluble in an organic solvent; (b) a high boiling point organic solvent having a viscosity at 25 C of at least 500 cp and a boiling point of at least 120° C; and (c) at least one coupler capable of forming a nondiffusible cyan dye by a coupling reaction with an oxidized form of a primary aromatic amine develoing agent with a color developing solution which is essentially benzyl alcohol free.

Claim 25

Independent Claim 140 words

A method of forming a color image comprising developing an exposed light-sensitive silver halide photographic material composed of a support having thereon at least one light-sensitive silver halide emulsion layer, at least one layer of the light-sensitive silver halide emulsion layer or an adjacent layer thereto containing an oil droplet dispersion in a hydrophilic binder, the oil droplets containing the combination of (a) a polymer insoluble in water and soluble in an organic solvent; (b) a high boiling point organic solvent having a viscosity at 25 C of at least 500 cp and a boiling point of at least 120° C; and (c) at least one coupler capable of forming a nondiffusible cyan dye by a coupling reaction with an oxidized form of a primary aromatic amine develoing agent with a color developing solution which is essentially benzyl alcohol free.

Claim 26

Independent Claim 146 words

A method of forming a color image comprising developing an exposed light-sensitive silver halide photographic material composed of a support having thereon at least one light-sensitive silver halide emulsion layer, at least one layer of the light-sensitive silver halide emulsion layer or an adjacent layer thereto containing an oil droplet dispersion in a hydrophilic binder, the oil droplets containing the combination of (a) a polymer insoluble in water and soluble in an organic solvent; (b) a high boiling point organic solvent having a viscosity at 25 C of at least 500 cp and a boiling point of at least 120° C; and (c) at least one coupler capable of forming a non-diffusible cyan dye by a coupling reaction with an oxidized form of a primary aromatic amine developing agent with a color developing solution and then bleach-fixing with a solution having a pH 6.0 or less.

Claim 27

Independent Claim 146 words

A method of forming a color image comprising developing an exposed light-sensitive silver halide photographic material composed of a support having thereon at least one light-sensitive silver halide emulsion layer, at least one layer of the light-sensitive silver halide emulsion layer or an adjacent layer thereto containing an oil droplet dispersion in a hydrophilic binder, the oil droplets containing the combination of (a) a polymer insoluble in water and soluble in an organic solvent; (b) a high boiling point organic solvent having a viscosity at 25 C of at least 500 cp and a boiling point of at least 120° C; and (c) at least one coupler capable of forming a non-diffusible cyan dye by a coupling reaction with an oxidized form of a primary aromatic amine developing agent with a color developing solution and then bleach-fixing with a solution having a pH 6.0 or less.

Claim 28

Dependent Claim 21 words

The method as claimed in claim 24, wherein bleach-fixing is carried out with a solution having a pH 5.5 or less.

Silver halide photographic photosensitive materials

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