JPH01198746A - Method for forming color reversal image having excellent color reproducibility - Google Patents

Abstract

PURPOSE:To obtain an image having excellent color reproducibility by subjecting a color reversal photosensitive material which has >=0.2 silver weight/binder weight converted from a silver halide successively to black and white developing, reversal processing and color developing by a color developing agent having <=11 pH as essential processing stages after image exposing. CONSTITUTION:The color reversal photosensitive material which has at least the photosensitive silver halide, coupler, DIR compd. and binder on a base and has >=0.2 silver weight/binder weight converted from the silver halide is subjected successively to the black and white developing, the reversal processing and the color developing by the color developing agent having <=11 pH as the essential processing stages after the image exposing. The pH of the color developing agent is <=11, more preferably 9-11. The DIR compd. is preferably used at 0.0001-0.1mol. per 1mol. of the silver halide and may be added to the silver halide emulsion contg. the coupler. The image having the excellent color reproducibility is thereby obtd.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a color reversal image forming method, and more particularly to a color reversal image forming method with excellent color reproducibility.

(Prior art and its problems) In the so-called negative-positive method in which a positive print is obtained by printing a negative film onto a photosensitive material for printing, masking and ink image effects (hereinafter referred to as r
It is possible to improve color reproducibility by adding a function called lE). However, in the positive-positive method using color reversal photosensitive materials such as reversal film and reversal paper, color correction masking cannot be used in principle, and color reproducibility is insufficient.

Attempts have been made to obtain IIE by applying DIR compounds to reversal window optical materials; The effect is small, especially when the silver/binder ratio exceeds 0.2. Against this background, it is important to develop color reversal images using color reversal photosensitive materials with large IIE and excellent color reproducibility. It is desired to provide a method for forming the same.

[Means for solving problems]

The present inventors have at least a photosensitive silver halide, a coupler, a DIR compound, and a binder on a support, and the silver weight calculated from the silver halide/the binder weight (silver/binder ratio) is 0°. The above-mentioned problems can be solved by a color reversal image forming method characterized in that two or more color reversal photosensitive materials are sequentially subjected to black-and-white development, reversal processing, and color development using a color developer having a pH of 11 or less as essential processing steps after image exposure. was found to be solved.

Above 1N! The amounts of silver and binder that determine the /binder ratio are the amount of gold and silver in the layer containing silver halide and contributing to color development (calculated from photosensitive silver halide) and the total amount of binder.

Generally, in the development process of color reversal photosensitive materials, a positive image is obtained by developing the atomized silver halide through black-and-white development, covering the remaining silver halide through reversal process, and developing with a color developing solution. . Thereafter, if necessary, desilvering is performed by using a bleach-fixing bath or a combination of a bleaching bath and a fixing bath to finally obtain a positive dye image.

The black-and-white developer is a developer containing a black-and-white developing agent. Examples of the black-and-white developing agent used in the present invention include hydroquinones (e.g., hydroquinone, sodium hydroquinone monosulfonate, 2,3-dimethylhydroquinone, etc.), aminophenols ( (e.g., para-aminophenol, N-methyl-para-aminophenol, etc.), pyrazolidones (e.g., l-phenyl-3-pyrazolidone, l-phenyl-3-pyrazolidone,
-phenyl-4-hydroxymethyl-4-methyl-3-
pyrazolidone, (-phenyl-4,4-bishydroxymethyl-3-pyrazolidone, etc.) may be used alone or in combination.

In addition, an alkaline agent, a preservative, a buffer, a development inhibitor, a development accelerator, a chelating agent, etc. can be added to the black developer.

As the reversal treatment, any method such as optical reversal or a reversal bath containing tin chloride can be used, and this treatment fogs the unexposed silver halide.

The color developing solution is a developer containing a color developing agent.

The color developing agent used in the color developing solution of the present invention is preferably an aromatic primary amine color developing agent, and includes various types that are widely used in various color photographic processes.

Preferred color developing agents used in the present invention are paraphenylenediamine color developing agents having at least one water-soluble group (hydrophilic group) on the amino group, and representative examples of these color developing agents include: The following compounds may be mentioned, but the present invention is not limited thereto.

In addition, the above-mentioned water-soluble group is (CHz)+*-CHzOH.

-(C[Iz), -NHSOz-(CHriN-CI(3
, -(CHz)n O-(CHz)N-CHs, -(
CHt(JzO) NcJtxya1, - (CI,),
-Cool.

-(CHz)H-5OJ.

(4 and are integers greater than or equal to 0) Examples of color developing agents Color developing agents include preservatives such as sulfites, alkaline agents such as potassium hydroxide, potassium bromide, and potassium iodide. The color developing solution of the present invention, which may contain an inorganic development inhibitor, a buffer, a development accelerator, an organic solvent, a chelating agent, a fogging agent, etc., has a pH of 11 or less, preferably a pH of 9 to 11. Buffers for stably maintaining the pH within this range include carbonates, borates, tetraborates, glycine, etc., with carbonates being preferred.

The color developing solution of the present invention preferably does not contain a competitive coupler such as citradinic acid.

After color development, desilvering may be carried out by bleaching, fixing, and bleach-fixing treatment as required.

Between each treatment step, washing with water, conditioning, or passing through a stabilizing bath may be performed as appropriate.

In the present invention, the DIR compound refers to a compound that releases a development inhibitor or a compound capable of releasing a development inhibitor upon reaction with an oxidized product of a color developing agent.

Among DIR compounds, diffusible DIR compounds are preferred.

- In this specification, a diffusible DIR compound refers to a development inhibitor or a compound capable of releasing a development inhibitor that is released by reaction with an oxidized form of a color developing agent, and the diffusivity of the compound is 0.0 as determined by the evaluation method described below. 34 or more, preferably 0.40 or more.

Diffusivity is evaluated by the following method.

Photosensitive material sample (1) having a layer with the following composition on a transparent support
) and (II) are prepared.

Sample (1): A sample having a green-sensitive silver halide emulsion layer Spectrally sensitized to green-sensitivity silver iodobromide (silver iodide 6 mol%, average grain size 0.48 μm) and the following coupler were used. A gelatin coating solution containing 0.07 moles per mole was coated with a silver amount of 1
．． Silver iodobromide (il iodide! 2 mol %, The amount of silver applied was 0.1 g/nl, and the amount of gelatin applied was 0.8 g.
/ Apply so that it becomes / rrr.

Sample (■): The same as the above sample (1) except that silver iodobromide was removed from the protective layer.

In addition to the above, each layer contains a gelatin hardening agent and a surfactant.

After exposing samples <1) and (II) to white light using a wedge,
Process according to the processing method below. The developer contains the sample (I
I) window strength to 60% (in logarithmic representation, -Δlog E =
0.22) to which various development inhibitors have been added in an amount that suppresses the development inhibitor to 0.22), and one to which no development inhibitor is added are used.

Processing steps (38°C) Color development 2 minutes 40 seconds Bleach 6 minutes 30 seconds water washing 3 minutes 15 seconds Fixation 6 minutes 30 seconds water washing 3 minutes 15 seconds Stabilization 1 minute 30 seconds drying Used in each processing step The composition of the treatment liquid is as follows.

4-amino-3-methyl-N-ethyl-N-(β-hydroxyethyl)-aniline sulfate
4.75 g anhydrous sodium sulfite
4.25 g hydroxylamine/each sulfate 2.0 g anhydrous potassium carbonate
37.5 g sodium bromide
1.3 g Nitrilotriacetic acid trisodium salt (monohydrate) 2.5 g
Potassium hydroxide 1.0 g Add water to make 11.

Bleaching solution> Ethylenediaminetetraacetic acid iron ammonium salt 100.0 g
Ethylenediaminetetraacetic acid diammonium salt 10.0 g
Ammonium bromide 150.0 g
Glacial acetic acid 10. Orn1
Add water to adjust to 11, add ammonia water to pH-6,
Adjust to 0.

Fixer) Ammonium thiosulfate 175.0 g
Anhydrous sodium sulfite 8.5g Sodium metasulfite 2.3g Add water to make 12, and adjust the pH to 6.0 using acetic acid.

Stabilizer> Formalin (37% aqueous solution) 1.5
mZ Konidafukus (manufactured by Konishiroku Photo Industry ■) 7,
Add 5d water to make IIl.

The sensitivity of sample (I) when no development inhibitor is added is SI, the sensitivity of sample (II) is 80', the sensitivity of sample (1) when a development inhibitor is added is S, and sample ( If the sensitivity of sample (1) is Sl, then the sensitivity of sample (1) is ΔS −S o −S.

Desensitization sensitivity of sample (]II is expressed as Δ5o−So′ St diffusivity=ΔS/ΔS0.

However, all sensitivities are the logarithm (-1ogE) of the reciprocal of the exposure amount at the density point of fog density +0.3.

The following table illustrates the diffusivity of several types of development inhibitors determined by this method.

In the present invention, the DIR compound preferably has the diffusivity of the released group within the range described above, but any other compounds can be used.

Representative structural formulas are shown below.

General formula (D-1) A-(Y).

A represents a coupler residue, m represents 1 or 2, and Y is a group that binds to the camping position of the coupler residue A and leaves by reaction with an oxidized form of a color developing agent, and is a development inhibitor group or a development inhibitor group. represents a group capable of releasing an agent.

In general formula (D-1), Y is typically represented by the following formula (
It is represented by D-2) to (D-19).

- Formula (D-2) General formula (D-3) - Formula CD-4) - Formula (
D-5) - Formula (D-6) - Formula (D-7)
- Formula (D-8) - Formula (D-9) In general formulas CD-2) to (D-7), Rd.

is a hydrogen atom, a halogen atom, or alkyl, alkoxy, acylamino, alkoxycarbonyl, thiazolylidenamino, aryloxycarbonyl, acyloxy, carbamoyl, N-alkylcarbamoyl, N, N-
Dialkylcarbamoyl, nitro, amino, N-arylcarbamoyloxy, sulfamoyl, N-alkylcarbamoyloxy, hydroxy, alkoxycarbonylamino, alkylthio, arylthio, aryl, heterocycle, cyano, alkylsulfonyl or polyoxycarbonylamino represents a group, n represents 0.1 or 2, and when n is 2, each Rd may be the same or different, the total number of carbons contained in n Rdl is 0
~IO. Further, the number of carbon atoms contained in Rd in formula (D-6) is θ to 15.

X in the above formula (D-6) represents an oxygen atom or a sulfur atom.

In general formula (D-8), Rdz represents an alkyl group, an aryl group, or a heterocyclic group.

- In formula (D-9), Rdi represents a hydrogen atom or a polygroup of alkyl, cycloalkyl, aryl, or heterocycle, and Rd< represents a hydrogen atom, a halogen atom, or an alkyl, cycloalkyl, aryl, acylamino, alkoxycarbonylamino , aryloxycarbonylamino, alkanesulfonamide, cyano, heterocycle,
Represents an alkylthio or amino group.

When Rd, Rd, Rd, or Rd4 represents an alkyl group, this alkyl group includes those having a substituent,
It may be either straight chain or branched chain.

When Rdl, Rdz, Rds or Rd represents an aryl group, the aryl group includes those having a substituent.

When Rd, Rd3 or Rd represents a heterocyclic group, this heterocyclic group includes those having a substituent, and includes at least one selected from a nitrogen atom, an oxygen atom, and a sulfur atom as a heteroatom. A 5- or 6-membered monocyclic ring or fused ring is preferred, and is selected from, for example, polygroups such as pyridyl, quinolyl, furyl, penzothiazolyl, oxasilyl, imidazolyl, thiazolyl, triazolyl, benzotriazolyl, imide, and oxazine.

- The number of carbon atoms contained in Ra2 in formulas (D-6) and (D-8) is 0 to 15.

In the above formula (D-9), Ra3 and Ra.

The total number of carbon atoms contained in is 0 to 15.

- Formula (D-10) T(ME INHIBIT) In the formula, the TIME group is a group that is bonded to the coupling position of A and can be cleaved by reaction with an oxidized product of a color developing agent,
It is a group that can release an INHIBIT group in a moderately controlled manner after being cleaved from a coupler.

The INHIBIT group is a group that becomes a development inhibitor upon release (for example, a group represented by the above-mentioned formulas (D-2) to (D-9)).

In general formula (D-10) -TIME-INHIBI
The T group typically has the following formulas (D-11) to (D-19
).

General formula (D-11) " Rd & General formula (D-12) - Mathematical formula (D-13) - Mathematical formula (D-14) - Mathematical formula (D - Is) - Mathematical formula (D-16) General formula (D-17 ) υ General formula (D-18) ○ General formula (D-19) Rda In general formulas (D-11) to (D-15) and CD-18), Rd is a hydrogen atom, a halogen atom, or an alkyl, cyclo Represents a polygroup of alkyl, alkenyl, aralkyl, alkoxy, alkoxycarbonyl, anilino, acylamino, ureido, cyano, nitro, sulfonamide, sulfamoyl, carbamoyl, aryl, carboxy, sulfo, hydroxy or alkanesulfonyl, -format % formula %) In the formulas (D-11), (D-14), (D-15
) and (D-19), Rds represents a polygroup of alkyl, alkenyl, aralkyl, cycloalkyl, heterocycle, or aryl, and - formula < D-16) and (
In D-17), Rdt represents a hydrogen atom or a polygroup of alkyl, alkenyl, aralkyl, cycloalkyl, heterocycle, or aryl, and Rda and Ra9 in formula (D-19) each represent a hydrogen atom or an alkyl group (preferably represents an alkyl group having 1 to 4 carbon atoms), - Formula (D-11), (D-15) to (D-18)
k in represents an integer of 0.1 or 2, - formula (D
-11) ~ (D-13), (D-15), (D-18)
l represents an integer from 1 to 4, - Formula (D-16)
m in represents an integer of 1 or 2, and when m is 2, each Rdt may be the same or different, - format (D-19)
n represents an integer of 2 to 4, n Rd, and R
dw may be the same or different, and have the -form (D-
B in 16) to (D-18) is an oxygen atom or -N
- (Rd represents the same meaning as already defined.), = in the - format (D-16) represents that it may be a single bond or a double bond; In the case of bonding, m is 2, in the case of double viscosity, m is 1, and the INHIBIT group has general formulas (D-2) to (D-9
) has the same meaning as the general formula defined in (except for the number of carbon atoms).

In the INHIBIT group, general formulas (D-2) to (D-
In 7), the number of carbon atoms contained in R1 in the molecule is 0 to 32 in total, the number of carbon atoms contained in Rdz in the - format (D-8) is 1 to 32, and the number of carbon atoms contained in Rdz in the - format (D-9) is 1 to 32. ), the total number of carbons contained in Rd and Rda is O~
It is 32.

When RdS, Rdb and Rd7 represent an alkyl group, an aryl group or a cycloalkyl group, those having substituents are included.

Among the DIR compounds, preferred are those in which Y has the general formula (D-
2), (D-3) or (D-10), and in (D-10), INHIBIT is represented by general formula (D-2), (D-6) (particularly - form). (When X in (D-6) is an oxygen atom), or (D-8) (especially when Rd2 in - format (D-8) is hydroxyaryl or alkyl having 1 to 3 carbon atoms) Preferably.

-11 Examples of the coupler component represented by A in formula (D-1) include a yellow image-forming coupler residue, a magenta image-forming coupler residue, a cyan image-forming coupler residue, and a colorless coupler residue. It will be done.

Preferred DIR compounds used in the present invention include the following compounds, but are not limited to these.

Exemplary compound R+ C0CHCORz D-36 D-37 I C11゜f "r CON)lcHzcHzcOOc)13 and H2sit13
1 υ1 NHCIJL;Hzl;HzL;υ0■■ "CI!3 曵I□1 Including these, DI that can be used in the present invention
Specific examples of R compounds are U.S. Pat. Nos. 4,234,678, 3,227,554, 3.617.291, and
, 958°993, 4.149.886, 3,
No. 933,500, JP-A No. 57-56837, 51-
No. 13239, U.S. Pat. No. 2,072.363, U.S. Pat.
No. 070.266, Research Disclosure.

It is described in December 1981, No. 21,228, etc.

The DIR compound is 0.0001 per mole of silver halide.
It is preferable to use ~0.1 mol, especially 0.001 mol.
It is preferable to use ~0.05 mol.

DIR compounds can be added to silver halide emulsion layers containing couplers.

The photosensitive silver halide contained in the coupler-containing silver halide emulsion layer may be any one, such as silver chloride, bromide,
Silver iodide, chlorobromide, silver iodobromide, silver chloroiodobromide, etc. can be used. The particle size is preferably 0.05 to 10 μm, more preferably 0.1 to 5 μm. The coating amount of silver halide is arbitrary, and can be applied, for example, in an amount commonly used in the art. The coating amount of the binder such as gelatin in the silver halide emulsion layer containing the coupler is arbitrary, and for example, it can be used in the coating amount commonly used in the art. However, in the present invention, the amount of silver type in the layer contributing to color development (the amount of silver calculated from silver halide)/binder weight is 0.2.
It is necessary that it is above.

The DIR compound is preferably contained in the silver halide emulsion layer containing the coupler, but it can also be added to the DIR layer.

In this specification, the DIR layer is a layer containing a DIR compound and a photosensitive silver halide emulsion, and does not form a substantial color image. Not forming a substantial color image means that the maximum density of the DIR layer after development is 0.3 or less, preferably 0.2 or less in terms of transmission density in transmission type photographic materials and reflection density in reflection type photographic materials; More preferably, it is 0.1 or less. Any photosensitive silver halide contained in the DIR layer can be used, such as silver chloride, bromide, silver iodide, chlorobromide, silver iodobromide, and silver chloroiodobromide, and the grain size is preferably 0. The thickness is preferably 0.1 to 1.5 μm, more preferably 0.05 to 2 μm. The coating amount of silver halide is preferably 0.01 g/m in terms of silver.
' ~ 3.0 g/m, more preferably 0.05 g/m
rd ~1.5 g/d.

The amount of gelatin applied in the DIR layer is preferably 0.1 g/rd.
~3. Og/rd, more preferably 0.2g/rI?
~2, Og/rd.

Although the position of the DIR layer is not particularly limited, it is preferably located near a silver halide emulsion layer having a color sensitivity different from that of silver halide in the DIR layer.

Further, the support may have one or more DIR layers, and when it has two or more layers, it is preferable that they have different color sensitivities.

As mentioned above, any silver halide can be used in the silver halide emulsion, and antifoggants, stabilizers, etc. can be added to the emulsion.

It is advantageous to use gelatin as the binder for the emulsion layer and other hydrophilic colloid layers, but gelatin derivatives, graft polymers of gelatin and other polymers, other proteins, sugar derivatives, cellulose derivatives, monomers, etc. Alternatively, hydrophilic colloids such as synthetic hydrophilic polymer substances such as copolymers can also be used, and can be hardened.
Plasticizers, dispersions of water-insoluble or sparingly soluble synthetic polymers (
latex).

Any coupler for forming a color image can be used in the emulsion layer of the color light-sensitive material. Furthermore, by coupling with the oxidized form of the developing agent, development accelerators, developers, silver halide abrasions, toning agents, hardeners, capri agents, antifoggants, chemical sensitizers, spectral sensitizers, and desensitizers can be produced. Compounds that release photographically useful fragments such as sensitizers can be used.

The photosensitive material can be provided with auxiliary layers such as a filter layer, an antihalation layer, and an antiirradiation layer. These layers and/or the emulsion layers may contain dyes that are leached from the light-sensitive material or bleached during the development process.

A matting agent, a lubricant, an image stabilizer, a formalin scavenger-1 ultraviolet absorber, a fluorescent whitening agent, a surfactant, a development accelerator, and a development retardant can be added to the photosensitive material.

As a support, paper laminated with polyethylene, etc.
Polyethylene terephthalate film, baryta paper, cellulose triacetate, etc. can be used.

Example 1 Sample 1 was prepared as a multilayer color reversal photosensitive material by sequentially coating each layer having the composition shown below on a subbed triacetylcellulose film support from the support side. The coating amount of each component is given in g/m. However, for silver halide, the coating amount is expressed in terms of silver.

1st layer (antihalation layer) UV absorber - 10.3 UV absorber - 20.4 Black colloidal silver 0.24 Gelatin 2.7 2nd layer (intermediate layer) 2.5-di-t-octylhydroquinone 0 .1 Gelatin 1.0 Third layer: Low sensitivity red-sensitive silver halide emulsion layer Silver iodobromide emulsion (emulsion 1)
0.5 sensitizing dye-17,6X10-'
Molar coupler 〇-10,1 mol DIR compound D-230,01 mol Gelatin 0.9 4th layer:
High sensitivity red-sensitive silver halide emulsion layer Silver iodobromide emulsion (emulsion n
) 0.8 sensitizing dye-13.2XlO
-'Mole coupler C-10,2 Gelatin 1.75 5th layer (intermediate layer) 2.5-di-t-octylhydroquinone 0.1 Gelatin 0.9 6th layer (low sensitivity green-sensitive silver halide emulsion layer) Emulsion-■
Silver amount 1.0 sensitizing dye - 26,6xlO-' mol Sensitizing dye - 30.6 x 10-' mol Coupler M - 10,055 mol DIR compound D -260,03-E /! / Gelatin 0.8 7th layer (high sensitivity green-sensitive silver halide emulsion layer) Emulsion - ■
Silver amount 1.0 Sensitizing dye -22,76x 10-
'Molar sensitizing dye -30,23X 10-'Molar coupler M -10,15-T:)b DIRDIR compound -260,02-E Lugelatin
1.5 8th layer (intermediate layer) 9th N (yellow filter layer) same as 5th layer Yellow colloidal silver 0.1 Gelatin 0.92.5-Z-T
-Octylhydroquinone 0.1 10th layer (low-sensitivity pre-malignant silver halide emulsion layer) Blue-sensitive silver iodobromide emulsion (emulsion ■)! Amount of Ii 0.4 Coupler Y-10,3 mol DIR compound D-230,03 mol Gelatin 1.3 11th layer (high sensitivity blue-sensitive silver halide emulsion layer) Blue-sensitive textured bromide emulsion (emulsion ■) Silver amount 0.8 Coupler Y-10,3Mole DIR Compound D-230,03Mole Gelatin
2.1 12th layer: 1st protective layer Ultraviolet absorber-10,3 Ultraviolet absorber-20,4 Gelatin 1.22.5-
Di-t-octylhydroquinone 0.1 13th layer: Second protective layer Average grain size (F) 0.08 μm Non-photosensitive fine grain silver halide emulsion made of silver iodobromide containing 1 mol% of silver iodide
Sl amount 0.3 Polymethyl methacrylate particles (diameter 1.5 μm) Surfactant-1 Gelatin 0.7 Table-1 In addition to the above composition, each layer also contains gelatin hardening agent-1 and surfactant. -1 was added. Additionally, tricresyl phosphate was used as a coupler solvent.

Ultraviolet absorber-1 H Ultraviolet absorber-2 zns Coupler C-1 H Coupler M-1 Coupler Y-1 Gelatin hardener-1 Na Surfactant-1 NaOxS CHCOOCHz (CFzCFz)J amount CH2COOCR2 (CF zCF z) J A sample without the addition of a DIR compound in the pore agent layer of the sample was designated as Sample-2.

Sample-1 and Sample-2 thus obtained were exposed to yellow light (Eastman Kodak CC-90Y) and red-violet light exposure (
Wedge exposure was performed using CC-90M) blue-green exposure (CC-900), and the following development processing was performed.

Processing process Processing time Processing temperature First development
6 minutes 38℃ (10.3℃) water washing
2. Inversion
2. Color development
6〃〃Adjustment 2〃
〃Bleaching 6
〃 〃arrival
4〃〃Wash 4
〃 〃 Stable 1 minute Drying at room temperature The composition of the treatment liquid used in the above treatment step is as follows.

First developer Sodium tetrapolyphosphate 2g Sodium sulfite 20g Hydroquinone monosulfonate 30g Potassium bromide (l hydrate)
30 gl-phenyl-4-methyl-
4-hydroxymethyl-3-pyrazolidone
2g potassium bromide 2.5g
Potassium thiocyanate 1.2g Potassium iodide (0.1% solution) Add 2ml water to make 1000n+j! Reversal liquid Nitrilotrimethylene sulfonic acid 6-sodium salt 3g 1st chloride
Tin (dihydrate) IgP-aminophenol 0.1g Sodium hydroxide
8g glacial acetic acid
Add 1 SmJ water
10100O! Lambda WaS Sodium Tetrapolyphosphate 2g Sodium Sulfite 7g Sodium Tertiary Phosphate (Dihydrate) 36g Potassium Bromide
1g potassium iodide (0.1% solution)
90ml sodium hydroxide
3g Citrazic acid 1.5
g3-Methyl-4-amino-N-ethyl-N-β-methanesulfonamidoethylaniline sulfate 11 g2.2-ethylenedithiogetanol Add 1 g water (1)
Hll, 8) 1000 m1 ri-! -Decoy Sodium sulfite 12 g Sodium ethylenediaminetetraacetate (dihydrate) g Thioglycerin 0.4ral Glacial acetic acid 3mi! Add water and get 1000+ wj! Bleach solution Sodium ethylenediaminetetraacetate (dihydrate) g Iron (n) ethylenediaminetetraacetate ammonium (dihydrate) 120 g Potassium bromide 100 g Add water to 10100O constant-1-photograph
・ Ammonium thiosulfate 80 g Sodium sulfite 5 g Sodium bisulfite 5 g Add water
10100O! Formalin (37% by weight) 5ml Conidax (manufactured by Konishiroku Photo Industry Co., Ltd.) 5III! Add water to 10100O! Further, Samples 1 and 2 were developed in the same manner except that the following color developer-2 was used instead of color developer-1 in the development process.

11 phlegm 2'' - Sodium tetrapolyphosphate 2g Sodium sulfite 7g Potassium carbonate
26 g potassium bromide
1g potassium iodide (0.1% solution)
90mff sodium hydroxide
1.4 g3-methyl-4-amino-N-
Ethyl-N-β-methanesulfonamide ethylaniline sulfate 11 g2.2-ethylenedithiogetanol 1 g Add water (p
H10, 4) 1000 ml The transmission density of the yellow, magenta, and cyan image areas of each sample obtained was measured using a Macbeth densitometer (model TD-504). However, the yellow image area was measured at a point where the blue density was 1.0, the magenta image area was measured at a point where the green density was 1.0, and the cyan image area was measured at a point where the red density was 1.0. The results are shown in Table-2. When the photosensitive material according to the present invention containing a DIR compound is processed by the reversal process according to the present invention using a color developing solution with a pH of 11 or less, the color purity is high. It can be seen that results with excellent reproducibility can be obtained.

Table 2 Example 2 The following color developer 3 was used in place of color developer 2 in Example 1, and a reversal process was performed, and the same results as in Example 1 were obtained.

Hikari Statue 21 Benzyl Alcohol 14.6ml
Ethylene glycol 12.6 ml Potassium carbonate 26 g Potassium bromide 0.55 g Potassium iodide 1.6 mg Potassium hydroxide 1.4 g Sodium sulfite 1.57 g Hydroxylamine sulfate 2.64 g 3.6-cythiaoctane-1,8 -Diol 0.24 g 3-Methyl-4-amino-N-ethyl-N-β-methanesulfonamidoethylaniline sulfate 5.0 g Add water
(p Hlo, 45) 1000 ml Example-3 In place of DIR compound D-23 of Sample-1 of Example-1, equimolar D-36 was added, and in place of D-26, equimolar D- Sample-3 was prepared in the same manner except that No. 37 was used. The color reproducibility of Sample 3 and Sample 2 was examined in the same manner as in Example 1. As a result, the color reproducibility was excellent when Sample 3 was subjected to reversal processing using a color developing solution of pH 10.4. .

Example-4 Color developer-4 was prepared by adding 1.5 g of citrazic acid to color developer-3 of Example-2 and adjusting the pH to 10.45 with potassium hydroxide.

Sample-2 of Example-1 and Sample-3 of Example-3 were subjected to reversal treatment using color developer-3 and color developer-3.
4 was used for inversion processing. For Sample-2, the color reproducibility was not improved using either Color Developers-3 or 4, whereas for Sample-3, a significant improvement in color reproducibility was observed in both cases. . However, color reproducibility was better in reversal processing using color developer-3 (not containing citradinic acid).

〔Effect of the invention〕

As described above, according to the color reversal image forming method of the present invention,
This has the effect that images with excellent color reproducibility can be obtained.

Claims (1)

[Claims] 1. The support has at least a photosensitive silver halide, a coupler, a DIR compound, and a binder, and the silver weight calculated from the silver halide/the weight of the binder is 0.
．． A color reversal image forming method, which comprises sequentially subjecting two or more color reversal photosensitive materials to black-and-white development, reversal processing, and color development using a color developer having a pH of 11 or less as essential processing steps after image exposure.