JP2002303959A - Color image forming method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a color image forming method excellent in density stability when running processing is carried out as a color image forming method for proof reading in a color photoengraving-printing process in which a silver halide color photosensitive material is processed after exposure through digitized image information using a light source such as a laser or a light emitting diode. SOLUTION: In the color image forming method, a silver halide color photosensitive material is exposed according to digitized image information, a relational expression of the amount of a developing solution replenished and the rate of image formation is set so that the relation between the integral value A of the amount of the developing solution replenished when the rate of image formation is 0-50% and the integral value B of the amount of the developing solution replenished when the rate of image formation is 50-100% satisfy 1<B/A<2 and processing is carried out while varying the amount of the developing solution replenished in proportion to the rate of image formation in accordance with the relational expression.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a color image forming method using a silver halide color light-sensitive material. A color image forming method of exposing and processing using a computer, in particular, a color plate making and printing in which halftone dot image information is converted into a digital signal using a computer, and a silver halide color photosensitive material is exposed and processed based on the digital signal. The present invention relates to a color image forming method for correcting a process.

[0002]

2. Description of the Related Art Conventionally, as a method of obtaining a color proof from a plurality of black and white halftone images obtained by performing color separation and halftone image conversion in a color plate making and printing process, a silver halide color photosensitive material is used. A method for producing a proof is disclosed in JP-A-56-113139 and JP-A-56-10433.
No. 5, 62-280746, 62-280747
No. 62-280748, No. 62-280749
And No. 62-280750.

On the other hand, a plate making method for converting an image into a digital signal and editing the image on a computer without using the halftone dot black and white film has come to be widely used. By digitizing the image information, it is possible to perform image processing, that is, quickly send an image to a remote place, or quickly edit an image in which the layout or color tone of the image is changed.

As a method of outputting an image edited in this way as a color proof, there is known a method in which a silver halide color photosensitive material is scanned and exposed with a laser or a light emitting diode and processed, but there are various problems in practical use. I have One of the important issues is that when images are output continuously, the image density differs between the first output image and the last output image. There was no problem.

[0005]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a color image forming method for exposing and processing digitized image information on a silver halide color light-sensitive material using a light source such as a laser or a light emitting diode, and in particular, In a color image forming method for color proofing and printing processes, a running process was performed by converting a halftone image information into a digital signal using a computer, exposing the silver halide color photosensitive material based on the digital signal, and processing. An object of the present invention is to provide a color image forming method having excellent density stability at the time.

[0006]

The above objects of the present invention have been attained by the following constitutions.

[0007] 1. A silver halide color light-sensitive material having at least one light-sensitive layer containing silver halide grains on a support is exposed based on digitized image information, and the image formation rate is from 0 to 50%. So that the relationship between the integral value A of the replenishment amount of the developer and the integral value B of the replenishment amount of the developer when the image forming rate is 50 to 100% satisfies 1 <B / A <2. A color image forming method comprising: setting a relational expression between a replenishing amount and an image forming rate, and performing processing by changing a replenishing amount of a developer according to the image forming rate according to the relational expression.

[0008] 2. The total amount of gelatin applied on the side having the photosensitive layer to the support of the silver halide color light-sensitive material is 1
^2. The color image forming method as described in 1 above, wherein the amount is 0.0 g / m ² or less.

3. 2. The color image forming method according to the above item 1, wherein silver halide grains contained in at least one photosensitive layer of the silver halide color photosensitive material have an average particle size of 0.5 μm or less.

[0010] 4. ^2. The color image forming method as described in 1 above, wherein the total amount of silver halide particles contained in the photosensitive layer of the silver halide color photographic material is 1.2 g / m ² or less in terms of silver.

5. 2. The color image forming method according to the above item 1, wherein at least one of the photosensitive layers contains a cyan coupler represented by the general formula (I), (II), (III) or (IV). .

6. 2. The color image forming method according to the above item 1, wherein the developer contains a compound represented by the general formula (V).

Hereinafter, the present invention will be described in detail. In order to obtain a color image with excellent density stability during running processing, a silver halide color light-sensitive material (hereinafter, referred to as
Generally, the processing solution is replenished in accordance with the area of the photosensitive material. The present inventor has studied in detail the stability of the color image density during the running process, and as a result, it is difficult to achieve the present invention only by this method, and adjust the replenishment amount of the developer according to the image forming rate, and It has been found that a color image having excellent density stability at the time of running processing can be obtained by performing processing while keeping the adjustment width within a certain range. Specifically, the image formation rate is 0 to
The relationship between the integral value A of the replenishment amount of the developer at 50% and the integral value B of the replenishment amount of the developer at an image formation rate of 50 to 100% satisfies 1 <B / A <2. In this method, a relational expression between the replenishment amount of the developer and the image formation rate is set, and the replenishment amount of the developer is changed according to the image formation rate in accordance with the relational expression.

Although the function of the present invention for adjusting the replenishment amount of the developing solution in accordance with the image forming rate with respect to these effects has not been sufficiently elucidated, the consumption of the developing solution component compounds during running processing and the developing solution It is believed that fatigue is more strongly related to the area weighted by the exposure dose than the simple area of the photosensitive material being processed. In the field of the present invention,
This is probably because the image forming rate of each photosensitive material fluctuates greatly and cannot be regarded as constant. Also, if the replenishment amount of the developer is adjusted only in accordance with the image formation rate, an overaction may occur and the stability of the image density may be impaired.
It is necessary to keep the range of the adjustment within a certain range.

In general, when a photosensitive material obtained by taking a landscape photograph or the like is processed in a color lab or the like, the image forming rate cannot be known before development. Therefore, the replenishing amount of the developing solution must be adjusted according to the image forming rate. Although not possible, it is possible in the field of the present invention.

Further, in order to further exhibit the effects of the present invention, it is preferable to further limit as in claims 2 to 6.

(Adjustment of Replenishment Amount) The image formation rate is the ratio of the image density to be formed after development by exposure processing to the maximum image density, and indicates the relationship between the exposure amount and the density of the photosensitive material used in advance. The density can be calculated in advance by predicting the density from the exposure amount of each pixel of the digitized image information and calculating the average value of the density of each pixel. Here, the maximum image density refers to the maximum image density obtained when standard development processing is performed. When the image formation rate is 100%, 100% of the silver halide is not always developed.

Therefore, by performing the above calculation using a computer or the like, the image formation rate can be obtained before exposure, and the replenishment amount can be adjusted when processing the exposed photosensitive material.

When there are a plurality of photosensitive layers sensitive to different wavelengths, the image formation rate can be determined by averaging the average densities of the respective layers.

As a method of changing the replenishing amount of the developing solution in accordance with the image forming rate, the minimum replenishing amount is set when the image forming rate is 0%, and the maximum replenishing amount is set when the image forming rate is 100%. Is preferred. It is preferable to increase the replenishment amount of the developer as the image forming rate increases. The relationship between the image forming rate and the replenishment amount of the developer may be a linear function or another function.

When the light-sensitive material of the present invention is of a positive type, the image formation rate is 100% when no light is exposed.
When the photosensitive material is a negative type, the image forming rate is 0% when no exposure is performed.

As a specific example of the setting of the replenishing amount, when the replenishing amount of the developer per m ^{2 of} the photosensitive material is R [ml] and the image forming rate is I [%], R = 300 + I × 2 (where, (I takes a value of 0 to 100).

According to the first aspect of the present invention, the integral value A of the replenishing amount of the developer when the image forming rate is 0 to 50% and the replenishing amount of the developing solution when the image forming rate is 50 to 100%. Of photosensitive material 1 m such that the relationship of
It is necessary to set the replenishment amount of the developer per ^two . Integral value A of a replenishing amount of the developer when the image forming rate is 0-50%, the plots refill image formation rate on the horizontal axis, the vertical axis represents the replenishment rate of the developing solution per photosensitive material 1 m ² However, it can be obtained by integrating the image formation rate from 0% to 50%. Similarly, the image formation rate is 50-100.
%, The integrated value B of the replenishment amount of the developer can be determined.

The higher the image forming rate, the more the compound added to the developing solution such as a developing agent is consumed. Therefore, in order to keep the developing property (color density) stable, the replenishing amount must be increased. In addition, in order to suppress an overaction that tends to occur when the replenishment amount of the developer is adjusted according to the image forming rate, it is necessary to limit the range of the adjustment to a certain range.

(Gelatin) According to claim 2 of the present invention,
The total amount of gelatin applied on the side having the photosensitive layer to the support is 10.0 g / m ² or less, and more preferably 9.
0 g / m ² or less. The amount of gelatin was 10.0 g /
Since developability and exceeds m ² is deteriorated, keeping the adjusted developability even when the replenishing amount of the developer in accordance with the image forming rate at a constant level becomes difficult. The lower limit of the total amount of gelatin is not particularly limited, but is preferably 4.0 g / m ² or more from the viewpoint of image bleeding resistance and the like. The amount of gelatin was determined to be 11.0 by the moisture measurement method described in the Paggy method.
% In terms of the mass of gelatin containing water.

As the gelatin used in the present invention, a gelatin extract is subjected to a hydrogen peroxide treatment in order to remove a coloring component of the gelatin, or extracted from a material obtained by subjecting a raw material ossein to a hydrogen peroxide treatment. Gelatin having improved transmittance by using ossein produced from uncolored raw bone is preferable. Gelatin may be any of alkali-treated ossein gelatin, acid-treated gelatin, gelatin derivative, and modified gelatin, and particularly preferably alkali-treated ossein gelatin.

The transmittance of gelatin was 70 when a 10% solution was prepared and the transmittance was measured at 420 nm using a spectrophotometer.
% Is preferable.

Gelatin jelly strength (by the puggy method)
Is preferably at least 250, particularly preferably 27
0 or more.

(Silver halide grains) According to the third aspect of the present invention, it is preferable that the average grain size of the silver halide grains contained in at least one photosensitive layer is 0.5 μm or less. If the average particle size exceeds 0.5 μm, the developability deteriorates. Therefore, it is difficult to maintain the developability at a constant level even if the replenishment amount of the developer is adjusted according to the image formation rate. The lower limit of the average particle size is not particularly limited, but is preferably 0.1 μm or more from the viewpoint of sensitivity and the like. The particle size referred to here is the diameter of spherical silver halide grains, or the diameter of a projected image converted to a circular image of the same area for grains having a shape other than spherical. The particle diameter can be obtained, for example, by photographing the particles with an electron microscope at a magnification of 10,000 to 50,000 times and actually measuring the particle diameter or the area at the time of projection on the print. Discrimination 1
It can be obtained by calculating the average of the particle sizes of 000 or more particles.

The shape of the silver halide grains used in the present invention may be cubic, octahedral, tetrahedral composed of a mixture of (100) and (111) planes, shape having (110) plane, sphere, flat plate, etc. Any one may be used. The grain size distribution may be a monodisperse silver halide emulsion having a uniform grain size and crystal habit, or an emulsion having no uniform grain size, but a monodisperse silver halide emulsion is preferred.

In the present invention, a monodisperse silver halide emulsion is defined as a silver halide emulsion having a grain size of ± 20% with respect to the average grain size rm as 60% of the mass of all silver halide grains. The above is mentioned, and preferably 70% or more, more preferably 80% or more. Here, the average particle size rm is defined as the particle size ri when the product ni × ri ³ of the frequency ni and ri ³ of the particles having the particle size ri is maximum (three significant digits, the minimum digit is Round off to the nearest 4).

A particularly preferred highly monodispersed silver halide emulsion has a distribution width (%) = (standard deviation of grain size / average grain size) × 10
The width of the distribution defined by 0 is 20% or less.
Here, the average particle diameter and the standard deviation of the particle diameter are obtained from ri defined above.

A monodisperse silver halide emulsion can be obtained by adding a water-soluble silver salt solution and a water-soluble halide solution to a gelatin solution containing seed grains by a double jet method under control of pAg and pH. In determining the rate of addition, refer to JP-A-54-48521 and JP-A-58-48521.
No. 49938 can be referred to. As a method for obtaining a more highly monodispersed emulsion, the method of growing in the presence of a tetrazaindene compound disclosed in JP-A-60-122935 can be applied.

It is also preferable to add two or more monodispersed silver halide emulsions to the same color-sensitive layer.

According to claim 4 of the present invention, the total amount of silver halide grains contained in the photosensitive layer is 1.2 in terms of silver.
g / m ² or less. More preferably,
1.0 g / m ² or less. If the total amount of silver halide grains exceeds 1.2 g / m ^{2 in} terms of silver, the developability deteriorates. Therefore, even if the replenishment amount of the developer is adjusted according to the image formation rate, the developability is kept constant. It will be difficult to keep at the level. The lower limit of the amount of silver halide grains is not particularly limited, but is preferably 0.4 g / m ² or more from the viewpoint of maximum density and the like.

(Cyan Coupler) According to claim 5 of the present invention, it is preferable to use cyan couplers represented by the general formulas (I) to (IV). Developability differs depending on the type of coupler, and it is difficult for some couplers to maintain the developability at a constant level even if the replenishing amount of the developer is adjusted according to the image formation rate.

Hereinafter, the cyan coupler of the present invention will be described in detail. In the above general formulas (I) and (II), R
¹¹ and R ¹³ represent a branched alkyl group, a substituted alkyl group, a substituted aryl group or a heterocyclic group, respectively.

Examples of the branched alkyl group include i-propyl,
t-butyl, sec-butyl, i-butyl, t-octyl and the like.

The alkyl component of the substituted alkyl group includes
It may be linear, branched or cyclic, and may be methyl, ethyl, n-butyl, i-propyl, t-butyl, sec-
Butyl, i-butyl, t-octyl, cyclohexyl and the like.

The aryl component of the substituted aryl group includes
Phenyl and the like can be mentioned. As a heterocyclic group,
2-furyl, 2-thienyl, 2-imidazolyl, 2-thiazolyl, 3-isoxazolyl, 3-pyridyl, 2-
Pyridyl, 2-pyrimidyl, 3-pyrazolyl, 2-benzothiazolyl and the like can be mentioned.

However, when R ¹¹ and R ¹³ represent a substituted alkyl group or a substituted aryl group, these alkyl and aryl components necessarily have a substituent. When R ¹¹ and R ¹³ represent a branched alkyl group or a heterocyclic group, these groups may have a substituent, if necessary.

There are no particular restrictions on these substituents,
Alkyl group (preferably having 1 to 32 carbon atoms, which may be linear or branched), aryl group (preferably phenyl group), anilino group, acylamino group (such as alkylcarbonylamino group, arylcarbonylamino group), and sulfonamide Groups (alkylsulfonylamino group, amino group in arylsulfo, etc.), alkylthio group (preferably having 1 to 32 carbon atoms as an alkyl component, and may be linear or branched), and arylthio group (phenyl group as an aryl component). Preferred), alkenyl groups (2-32 carbon atoms)
Are preferred, which may be linear or branched), and a cycloalkyl group (preferably having 3 to 12 carbon atoms, particularly preferably having 5 to 7 carbon atoms). In addition, a halogen atom and a cycloalkenyl group (preferably having 3 to 12, particularly preferably 5 to 7), an alkynyl group, a heterocyclic group (preferably having 5 to 7 members, specifically 2-furyl, 2-thienyl, 2-pyrimidinyl, 2-benzothiazolyl, 1-pyrrolyl, 1-tetrazolyl group, etc., sulfonyl group (alkylsulfonyl group, arylsulfonyl group, etc.), sulfinyl group (alkylsulfinyl group, arylsulfinyl group, etc.), phosphonyl Groups (alkylphosphonyl group, alkoxyphosphonyl group, aryloxyphosphonyl group,
Arylphosphonyl group, etc.), acyl group (alkylcarbonyl group, arylcarbonyl group, etc.), carbamoyl group (alkylcarbamoyl group, arylcarbamoyl group, etc.), sulfamoyl group (alkylsulfamoyl group,
Arylsulfamoyl group, etc.), cyano group, alkoxyl group, aryloxyl group, heterocyclic oxyl group (5-7
Those having a 3-membered heterocyclic ring are preferred, for example, 3, 4,
5,6-tetrahydropyranyl-2-oxy, 1-phenyltetrazol-5-oxy group, etc., siloxy group (trimethylsiloxy group, triethylsiloxy group, dimethylbutylsiloxy group, etc.), acyloxyl group (alkylcarbonyloxyl group) , Arylcarbonyloxyl), sulfonyloxyl (alkylsulfonyloxyl, etc.), carbamoyloxyl (alkylcarbamoyloxyl, arylcarbamoyloxyl, etc.), alkylamino, imide (succinimide, 3-heptadecylsuccinimide) , Phthalimide group, glutarimide group, etc.), ureido group (alkyl ureido group, aryl ureide group, etc.), sulfamoylamino group (alkylsulfamoylamino group, arylsulfamoylamino group, etc.), Lucoxycarbonylamino group, aryloxycarbonylamino group, alkoxycarbonyl group, heterocyclic thio group (preferably having a 5- to 7-membered heterocyclic ring, for example, 2-pyridylthio, 2-benzothiazolylthio, 2,4- Diphenoxy 1,3,5-
Each group such as a triazole-6-thio group, a thioureido group, a carboxyl group, a hydroxyl group, a mercapto group, a nitro group, a sulfo, and a spiro compound residue (such as spiro [3,3] heptane-1-yl); Bridged hydrocarbon compound residue (bicyclo [2,2,1] heptane-1-yl group, tricyclo [3,3,1,13,7] decane-1-
Yl, 7,7-dimethyl-bicyclo [2,2,1] heptane-1-yl and the like. These groups may be further substituted by the above substituents.

In the above general formulas (I) and (II), R
¹² and R ¹⁴ represent a substituent, and an alkyl group (having 1 to 3 carbon atoms)
2 are preferred, which may be linear or branched), an aryl group (preferably a phenyl group), an anilino group, an acylamino group (such as an alkylcarbonylamino group or an arylcarbonylamino group), a sulfonamide group (an alkylsulfonylamino group, An arylsulfo such as an amino group, an alkylthio group (preferably having an alkyl component having 1 to 32 carbon atoms, which may be linear or branched), an arylthio group (preferably a phenyl group as the aryl component), and an alkenyl group (carbon Those having a number of 2 to 32 are preferable, and may be linear or branched, and a cycloalkyl group (having 3 to 12 carbon atoms)
And particularly preferably 5 to 7).
In addition, a halogen atom and a cycloalkenyl group (preferably having 3 to 12, particularly preferably 5 to 7), an alkynyl group, a heterocyclic group (preferably having 5 to 7 members, specifically 2-furyl, 2-thienyl, 2-pyrimidinyl, 2-benzothiazolyl, 1-pyrrolyl, 1-tetrazolyl group, etc., sulfonyl group (alkylsulfonyl group, arylsulfonyl group, etc.), sulfinyl group (alkylsulfinyl group, arylsulfinyl group, etc.), phosphonyl Group (alkylphosphonyl group, alkoxyphosphonyl group, aryloxyphosphonyl group, arylphosphonyl group, etc.), acyl group (alkylcarbonyl group, arylcarbonyl group, etc.), carbamoyl group (alkylcarbamoyl group, arylcarbamoyl group, etc.) , Sulfamoyl group (alkylsulfamoyl group Arylsulfamoyl group, etc.), cyano group, alkoxyl group, aryloxyl group, and heterocyclic oxyl group (preferably having a 5- to 7-membered heterocyclic ring, for example, 3,4,5,6-tetrahydropyranyl-2 -Oxy, 1-phenyltetrazol-5-oxy group, etc.), siloxy group (trimethylsiloxy group, triethylsiloxy group, dimethylbutylsiloxy group, etc.), acyloxyl group (alkylcarbonyloxyl group, arylcarbonyloxyl group), sulfonyloxyl Group (alkylsulfonyloxyl group, etc.), carbamoyloxyl group (alkylcarbamoyloxyl group, arylcarbamoyloxyl group, etc.), alkylamino group, imide group (succinimide group, 3-heptadecylsuccinimide group, phthalimide group, glutarimide group, etc.) Ureido group (alkyl ureido group, aryl ureide group, etc.), sulfamoylamino group (alkylsulfamoylamino group, arylsulfamoylamino group, etc.), alkoxycarbonylamino group, aryloxycarbonylamino group, alkoxycarbonyl group, A heterocyclic thio group (having a 5- to 7-membered heterocyclic ring is preferable;
-Pyridylthio, 2-benzothiazolylthio, 2,4-
Each group such as diphenoxy-1,3,5-triazole-6-thio group), thioureido group, carboxyl group, hydroxyl group, mercapto group, nitro group, sulfo, and spiro compound residue (spiro [3,3] heptane) -1-yl, etc.), a bridged hydrocarbon compound residue (bicyclo [2,2,
1] heptane-1-yl group, tricyclo [3,3,1,
13,7] decane-1-yl, 7,7-dimethyl-bicyclo [2,2,1] heptan-1-yl and the like. These groups may be further substituted by the above substituents.

As the substituents represented by R ¹² and R ¹⁴ ,
An alkyl group and an aryl group are preferred, and an aryl group is particularly preferred. The above group may further have a non-diffusible substituent such as a long-chain hydrocarbon group or a polymer residue.

In the above general formulas (I) and (II), X
¹¹ and X ¹² each represent a hydrogen atom or an atom or group capable of leaving by reaction with an oxidized form of a color developing agent,
For example, a hydrogen atom, a halogen atom (chlorine, bromine, fluorine, etc.), and alkoxyl, aryloxyl, heterocyclic oxyl, acyloxyl, sulfonyloxyl, alkoxycarbonyloxyl, aryloxycarbonyl,
Alkyloxalyloxyl, alkoxyoxalyloxyl, alkylthio, arylthio, heterocyclic thio, alkyloxythiocarbonylthio, acylamino, sulfonamide, nitrogen-containing heterocyclic ring linked by N atom, alkyloxycarbonylamino, aryloxycarbonylamino, carboxyl And the like, preferably a hydrogen atom, a halogen atom, an alkoxyl group, an aryloxyl group, an alkylthio group, an arylthio group, a nitrogen-containing heterocyclic group substituted with an N atom, and the like.

Of the cyan couplers represented by the general formulas (I) and (II), those represented by the general formula (I) are preferred.

Specific examples of the cyan couplers represented by formulas (I) and (II) are shown below, but the present invention is not limited thereto.

[0048]

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[0049]

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[0050]

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[0051]

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[0052]

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[0053]

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Next, the cyan couplers represented by formulas (III) and (IV) will be described. Formulas (III) and (I
In V), R ²¹ , R ²² , R ²³ and R ²⁴ , R ²⁵ , R ²⁶
As the electron-withdrawing group represented by, an acyl group, an acyloxyl group, a carbamoyl group, an alkoxycarbonyl group,
Aryloxycarbonyl group, cyano group, nitro group, dialkylphosphono group, diarylphosphono group, diarylphosphinyl group, alkylsulfinyl group, arylsulfinyl group, alkylsulfonyl group, arylsulfonyl group, sulfonyloxyl group, acylthio group, Sulfamoyl group, thiocyanate group, thiocarbonyl group,
The above group substituted with at least two halogen atoms,
Examples include an aryl group and a heterocyclic group substituted with an electron-withdrawing group.

In the general formulas (III) and (IV), X ²¹
The color developing agent and which is represented by X ²² The atom or group capable of splitting off upon reaction with an oxidation product, in the general formula (I) and (II), of a color developing agent represented by X ¹¹ and X ¹² The same atoms and groups that can be eliminated by the reaction with the oxidant can be exemplified.

Of the cyan couplers represented by the general formulas (III) and (IV), those represented by the general formula (III) are preferred.

Specific examples of the cyan couplers represented by formulas (III) and (IV) are shown below, but the present invention is not limited thereto.

[0058]

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[0059]

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[0060]

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[0061]

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[0062]

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[0063]

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[0064]

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[0065]

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The cyan couplers represented by formulas (I), (II), (III) and (IV) used in the light-sensitive material of the present invention can be synthesized by a known method.
For example, the exemplified compound (2) is disclosed in JP-A-10-198010.
Can be synthesized by the method described in (1).

These cyan couplers are generally used in an amount of 1 × 10 ^-3 to 1 mol, preferably 1 × 10 ^-3 mol per mol of silver halide.
10 ^-2 to 8 × 10 ^-1 mol is used. Further, it can be used in combination with another type of cyan coupler as long as the effects of the present invention are not impaired.

(Developing Agent) According to claim 6 of the present invention, it is preferable that the developer contains a compound represented by the general formula (V). Developability differs depending on the type of developing agent, and it is difficult for some developing agents to maintain developability at a constant level even when the replenishing amount of the developer is adjusted according to the image formation rate.

In the general formula (V), R ₁ and R ₂ each represent an alkyl group, and this alkyl group includes those having a substituent. The substituent may be any one, but is preferably a water-soluble group. The water-soluble _{group, -OH, -NHSO 2 -R 3,} -NHCOR 4, -O
_{R 5, -O (CH 2 CH} 2 O) n -R 6, -COOM, -S
O ₃ M and the like are preferred. Here, R _{3 to} R ₅ represent an alkyl group, R ₆ represents a hydrogen atom or an alkyl group, and n represents 1
And M represents hydrogen or a cation. Also, R
₁ and R ₂ may form a ring together with the N atom, and examples of the ring to be formed include a formolin ring.

_One of R ₁ and R ₂ is preferably an alkyl group having a water-soluble group, particularly R ₁ is an unsubstituted alkyl group, and R ₂ is preferably a hydroxyalkyl group. Further, the compound of the general formula (V) may form a salt.

Hereinafter, specific examples of the compound represented by formula (V) according to the present invention will be shown.

[0072]

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[0073]

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[0074]

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[0075]

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The compound used in the present invention is JAC
S, 73, 3100. The content of the compound according to the present invention among the developing agents in the developer is preferably at least 70 mol%, more preferably at least 90 mol%.

The addition amount of the compound of the formula (V) is preferably 1.5 × 10 ^{-2 to} 1.0 × 10 ^-1 mol per liter of the developing solution.

(Exposure Apparatus) As the exposure light source of the exposure apparatus used in the present invention, any known one can be preferably used. Particularly preferred are lasers or light emitting diodes.

As the laser for exposing the photosensitive material, various conventionally known lasers can be used.

A gas laser can provide a high output, but the device is large and expensive, and a modulator is required. Examples of gas lasers that emit visible light include a helium / cadmium laser (441.6 nm), an argon ion laser (514.4 nm), and a helium neon laser (63
2.8 nm).

On the other hand, semiconductor lasers have features such as small size, low cost, and long life. Some semiconductor lasers have an oscillation wavelength from the visible part to the infrared.
As a semiconductor laser, AlGaInAs (670 n
m), GaAlAs (750 nm), GaAlAs (7
60 nm to 850 nm), but is not limited thereto.

As a light emitting diode (LED), one having a composition similar to that of a semiconductor laser is known.
Various types from blue to infrared have been put to practical use.

As an exposure light source used in the present invention, a laser, a light emitting diode, or the like may be used alone, or a combination thereof may be used as a multi-beam.

In the present invention, when performing scanning exposure on a photosensitive material, the photosensitive material is set so as to be wound around a rotating drum, and laser or light emitting diode exposure corresponding to image information is performed in synchronization with the rotation of the rotating drum. Can be. The diameter of the drum can be arbitrarily set according to the size of the photosensitive material to be exposed. The number of rotations of the drum can be set arbitrarily, but an appropriate number of rotations can be selected according to the beam diameter of laser or light emitting diode light, energy intensity, light writing pattern, sensitivity of the photosensitive material, and the like. From the viewpoint of productivity, it is preferable that scanning exposure can be performed at a higher rotation speed, but specifically, 200 to 3000 rotations per minute is preferable.

The photosensitive material may be fixed to the drum by mechanical means, or a large number of fine holes that can be sucked on the surface of the drum are provided according to the size of the photosensitive material. Can be brought into close contact with each other.
It is necessary to fix the photosensitive material as closely as possible to the drum in order to prevent troubles such as unevenness of the image.

In the color image forming method of the present invention, the exposure apparatus is an exposure apparatus preferably used for large-size color prints and color proof exposure, and is capable of handling a rolled photosensitive material in a bright room. The stored cartridge is loaded into an exposure device, pulled out, cut to the length required for image formation, wound around a rotating drum, image-exposed with a laser exposure device while rotating the drum, and subsequently developed. To obtain a color image. At this time, it is preferable that the laser exposure apparatus has a mechanism for reading information given to the light chamber cartridge and automatically performing identification of the type of photosensitive material, exposure condition setting, and development processing condition setting.

Various types of bright room cartridges have been proposed, but all known bright room cartridges can be used. Also, by covering the outer periphery of the roll photosensitive material having a light-shielding flange with a light-shielding leader, the photosensitive material can be handled in a bright room while being shielded from light, and after loading the exposure device, the dark room is required by removing the leader. In addition, in the image forming method of the present invention, a so-called easy-loading cartridge in which a roll of a photosensitive material can be easily loaded in an apparatus is also included in the bright room cartridge. In that case, the readable information can be given to the reader or to the flange or the like.

(Irradiation Prevention Dye) The light-sensitive material of the present invention may contain a dye for preventing irradiation. Examples of the dye include oxonol, cyanine, merocyanine, azo, anthraquinone, arylidene, and other dyes, and preferred dyes are highly decomposable in a development processing bath and non-color sensitizing to a silver halide emulsion. Are oxonol dyes and merocyanine dyes.

Examples of oxonol dyes include US Pat. No. 4,187,225, JP-A-48-42826, JP-A-49-5125, JP-A-49-99620, and JP-A-50-9.
No. 1627, No. 51-77327, No. 55-1206
No. 60, No. 58-24139, No. 58-143342
No. 59-38742, No. 59-11640,
Nos. 59-111641, 59-168438, 60-218641, 62-31916, and 62
-66275, 62-66276, 62-18
Nos. 5755, 62-273527 and 63-139
949, etc. Further, as merocyanine dyes, JP-A-50-145124 and JP-A-58-12
No. 0245, No. 63-35437, No. 63-3543
No. 8, No. 63-34539, No. 63-58437 and the like.

Representative examples of oxonol dyes and merocyanine dyes include water-soluble yellow dyes AIY-1 to AIY-14 described in JP-A-9-5954, and water-soluble magenta dyes AIM-1 to AIM-14. And water-soluble cyan dyes AIC-1 to AIC-14.

Typical examples of water-soluble dyes other than oxonol dyes and merocyanine dyes include the water-soluble yellow dye AI described in JP-A-9-5954.
Y-15 to AIY-18, AIM-15 to AIM-1
8, AIC-15 to AIC-18.

(Support) The support preferably used in the present invention has both sides of a paper substrate coated with a resin containing a polyolefin resin as a main component. When the measurement signal is obtained by frequency analysis, it is preferable that the integrated value (PY value) of the power spectrum in the frequency section of 1 to 12.5 mm on the surface of the support is 2.9 μm or less.

In order to measure the PY value, the thickness unevenness of the polyolefin-coated support is continuously measured using a film thickness continuous measuring device (for example, manufactured by Anritsu Corporation), and the obtained measurement signal is analyzed by a frequency analyzer. (For example, Hitachi Electronics:
VC-2403).

The substrate (base paper) of the support can be selected from raw materials generally used for photographic printing paper. Examples include natural pulp, synthetic pulp, a mixture of natural pulp and synthetic pulp, and various raw materials for paper. Generally, natural pulp mainly composed of softwood pulp, hardwood pulp, mixed pulp of softwood pulp and hardwood pulp and the like can be widely used.

Further, additives such as a sizing agent, a fixing agent, a tension-enhancing agent, a filler, an antistatic agent, a dye and the like generally used in papermaking may be incorporated into the support. An agent, a surface strengthening agent, an antistatic agent and the like may be appropriately applied to the surface.

The reflection support is usually 50 to 300 g / m2.
A smooth surface having a mass of ² is used, and
The resin for laminating the both sides may be selected from ethylene, α-olefins, for example, homopolymers such as polypropylene, copolymers of at least two kinds of the olefins, and mixtures of at least two kinds of these various polymers. it can. Particularly preferred polyolefin resins are low density polyethylene, high density polyethylene or mixtures thereof.

The molecular weight of the polyolefin resin to be laminated on the reflection support is not particularly limited, but usually 20,000 to 200,000 is used.

The polyolefin resin coating layer on the side of the reflection support on which the photographic emulsion is coated is preferably from 25 to 50 μm, more preferably from 25 to 35 μm.

As the polyolefin used for laminating the back side of the reflective support (the reflective side of the side on which the emulsion layer is provided), a mixture of low-density polyethylene and high-density polyethylene is usually melt-laminated. And this layer,
Generally, it is often matted.

In forming the laminate on the front and back of the support,
In general, in order to increase the flatness of the developed photographic paper in a normal environment, a method of slightly increasing the density of the resin layer on the front side or increasing the amount of lamination on the back side compared to the front side is used.

In general, the lamination on both the front and back surfaces of the reflective support can be formed by melt extrusion coating the polyolefin resin composition on the support. In addition, it is preferable to perform a corona discharge treatment, a flame treatment, or the like on the surface of the support or, if necessary, on both the front and back surfaces. Further, it is preferable to provide a sub-coat layer on the surface of the surface laminate layer for improving the adhesiveness with the photographic emulsion, or a back coat layer on the back surface of the laminate layer for improving the printability and antistatic property.

The polyolefin resin used for laminating the surface of the support (the surface on which the emulsion layer is provided) preferably contains 13 to 20% by mass, more preferably 15 to 20% by mass of a white pigment dispersed and mixed therein. As the white pigment, an inorganic or organic white pigment can be used, and preferably an inorganic white pigment, specifically, a sulfate of an alkaline earth metal such as barium sulfate, or an alkaline earth such as calcium carbonate. Metal carbonates, finely divided silica, synthetic silicates,
Examples include calcium silicate, alumina, alumina hydrate, titanium oxide, zinc oxide, talc, clay and the like.

Of these, barium sulfate is preferred.
Calcium carbonate and titanium oxide, more preferably barium sulfate and titanium oxide. The titanium oxide may be of rutile type or anatase type, and those whose surface is coated with a metal oxide such as hydrous alumina or hydrous ferrite are also used.

In addition, it is preferable to add an antioxidant, a color pigment for improving whiteness, and a fluorescent whitening agent.

The surface shape of the reflective support may be smooth or may have an appropriate surface roughness, but it is preferable to select a reflective support having a gloss close to that of printed matter. For example, JIS B 0601-1976
Has an average surface roughness SRa of 0.30 to 3.0 μm
It is preferred to use a white support having a m. For this purpose, a matting agent can be contained in the constituent layer on the image forming side of the photosensitive material. The layer to which the matting agent is added includes a silver halide emulsion layer, a protective film, an intermediate layer, an undercoat layer, and the like, and may be added to a plurality of layers, and is preferably the uppermost layer of the photosensitive material.

The surface gloss of the image forming layer side of the photosensitive material preferably has a gloss close to that of a printed matter. For example, the glossiness GS of the surface of the image forming layer after processing is measured by a method specified in JIS Z8741. (60 °) of 5 to 60 is preferred.

In a preferred embodiment of the present invention, it is preferable to form a protective layer on the outermost surface of the light-sensitive material, and to add fine particle powder to the protective layer. Japanese Patent Application Laid-Open No. 6-95283 describes a fine particle powder (matting agent) and a method of using the same.
It is preferable to use the technique described in page 4, left column, line 42 to page 4, right column, line 33.

In the present invention, a support of a synthetic resin film such as polypropylene, the surface of which is further coated with polyolefin, can also be used.

The thickness of the reflective support is not particularly limited.
Those having a thickness of 0 to 160 μm are preferably used. Especially 9
Those having a thickness of 0 to 130 μm are more preferred.

(Silver Halide Emulsion) As the silver halide emulsion used in the light-sensitive material of the present invention, development is performed using a surface latent image type silver halide emulsion which forms a latent image on the surface by image exposure. May be used to form a negative image. Further, using an internal latent image type silver halide emulsion in which the surface of the grains is not fogged beforehand, fogging (nucleation) after image exposure, and then performing surface development,
Alternatively, an emulsion capable of directly obtaining a positive image by performing surface development while performing fogging after image exposure can also be preferably used. The emulsion containing the internal latent image type silver halide emulsion grains is a silver halide grain having a photosensitive nucleus mainly inside silver halide crystal grains and forming a latent image inside the grains upon exposure. Containing emulsion.

The fogging treatment may be performed by exposing the entire surface, may be performed chemically using a fogging agent,
Further, a strong developing solution may be used, and furthermore, a heat treatment or the like may be used.

The entire surface exposure is carried out by immersing or moistening the image-exposed photosensitive material in a developing solution or other aqueous solution and then performing uniform exposure over the entire surface.
The light source used here may be any light source as long as it has light in the photosensitive wavelength region of the photosensitive material,
Further, high illuminance light such as flash light can be applied for a short time, or weak light can be applied for a long time. Further, the time of the entire surface exposure can be varied over a wide range so as to finally obtain the best positive image depending on the photosensitive material, the development processing conditions, the type of the light source used, and the like. In addition, it is most preferable that the exposure amount for the entire surface exposure be given in a certain fixed range in combination with the photosensitive material. Usually, when the exposure amount is excessively increased, the minimum density increases or desensitization occurs, and the image quality tends to be reduced.

As a technique for fogging agents that can be used in the light-sensitive material of the present invention, it is preferable to use the technique described in JP-A-6-95283, page 18, right column, line 39 to page 19, left column, line 41.

The internal latent image type silver halide emulsion preferably used in the present invention includes those prepared by various methods. For example, conversion type silver halide emulsions described in U.S. Pat. No. 2,592,250 and U.S. Pat. Nos. 3,206,316, 3,317,322 and 3,367,778. Silver halide emulsion having internally chemically sensitized silver halide grains, silver halide containing polyvalent metal ions described in U.S. Pat. Nos. 3,271,157 and 3,447,927 Emulsion having grains, silver halide emulsion in which the grain surface of a silver halide grain containing a dopant described in U.S. Pat. No. 3,761,276 is weakly chemically sensitized,
No.-8524, No.50-38525 and No.53-24
And silver halide emulsions described in JP-A Nos. 52-156614 and 55-127549, and the like.

The silver halide grains in the present invention include Mn, Cu, Zn, Ga, Cd, Re, Pb and Bi.
And at least one member selected from Group VIII metals of the periodic table
Some metals may be incorporated.

Among the above metals, preferred metals vary depending on the characteristics of silver halide grains, but particularly preferred metals include Ir, Rh, Pb, and Re. The amount of the metal is preferably from 10 ^-9 to 10 ^-2 mol, particularly preferably from 10 ^-8 to 10 ^-3 mol, per mol of silver halide.

When the silver halide grains are formed while mixing and stirring the silver salt solution and the halide salt solution, these metals are mixed with each other in the form of an aqueous solution or a solution dissolved in an organic solvent as metal ions. By adding in
Alternatively, they can be coexisted in an aqueous solution of a halogen salt and incorporated in silver halide grains. After the silver halide grains are formed, a solution in which metal ions are dissolved can be added and incorporated in the silver halide grains.
Further, in this case, silver halide grains may be grown by further adding a silver salt solution and a halogen salt solution. The metal is usually added in the form of a metal complex salt or a metal compound such as a metal oxyacid salt or an organic acid salt.

These metals may be incorporated at any position in the silver halide grains, may be concentrated in a part of the silver halide grains, or may be incorporated throughout the grains. Also, two or more metals may be built in,
When the silver halide grains are core / shell grains, separate metals can be incorporated in the core and the shell.

The light-sensitive material of the present invention preferably contains a nitrogen-containing heterocyclic compound having a mercapto group. Preferable examples of the compound include compounds of the general formula [XI] described in JP-A-6-95283, page 19, right column, lines 20 to 49, and particularly preferably the same publication, page 20, left column, lines 5 to page 20, right column, two lines. And the compounds of the general formulas [XII] to [XIV]. Incidentally, specific examples of the compound include, for example,
Compound (1) described on pages 11 to 15 of US Pat.
To (39).

The amount of the mercapto compound to be added may vary depending on the kind of the compound to be used and the layer to be added. In general, when the mercapto compound is added to the silver halide emulsion layer, it is preferably 10 ^-8 to 10 ^-8 per mol of silver halide. It is 10 ^-2 mol, more preferably 10 ^-6 to 10 ^-3 mol.

The yellow image-forming, magenta image-forming and cyan image-forming silver halide emulsion layers in the light-sensitive material of the present invention contain silver halide emulsions having spectral sensitivity wavelength regions different from each other. At least one of the yellow, magenta, and cyan image-forming silver halide emulsion layers contains any one of the emulsions contained in the yellow, magenta, and cyan image-forming silver halide emulsion layers, each having a different spectral sensitivity wavelength region. In addition, a silver halide emulsion having spectral sensitivity having a common portion may be contained.

(Magenta Coupler) The magenta coupler used in the light-sensitive material of the present invention is described in JP-A-6-95.
The compound represented by the general formula [M-1] described in the right column of page 283 on page 7 is preferable because of excellent spectral absorption characteristics of the coloring dye. Preferred examples of the compound include compounds M-1 to M-19 described on pages 8 to 11 of the same publication. As still another specific example, EP-A-0,273,712, 6-2.
There are compounds M-1 to M-61 described on page 1 and compounds 1 to 223 described on page 36 to 92 of 0,235,913.

The above magenta couplers can be used in combination with other types of magenta couplers, and are usually 1 × 10 ^-3 to 1 mol, preferably 1 × 10 ^-3 mol per mol of silver halide.
^-2 to 8 × 10 ^-1 mol can be used.

The λmax of the spectral absorption of the magenta image formed in the photosensitive material according to the present invention is 530 to 560n.
m, and λL0.2 is 580
It is preferably from 635 nm to 635 nm.

Here, λL of the spectral absorption of the magenta image
0.2 and λmax are values measured by the following method.

When a positive emulsion is used as the light-sensitive material, the light-sensitive material is uniformly exposed to a minimum amount of red light capable of obtaining a minimum density of a cyan image, and a minimum light amount capable of obtaining a minimum density of a yellow image. After uniformly exposing with blue light, applying white light through an ND filter, and developing
An integrating sphere was attached to the spectrophotometer, and the ND was adjusted so that the maximum value of the absorbance was 1.0 when the spectral absorption of 500 to 700 nm was measured with zero correction using a standard white plate of magnesium oxide.
A magenta image is produced by adjusting the density of the filter. When a magenta coupler or a negative type emulsion is used for the light-sensitive material, the density of the ND filter is adjusted so that when the magenta image is formed by applying green light through an ND filter and developing to form a magenta image, the same maximum absorbance as the above positive is obtained. Adjust. λL0.2 refers to a wavelength at which the absorbance of the magenta image is 0.2, which is longer than the wavelength at which the maximum absorbance shows 1.0 on the spectral absorbance curve.

(Yellow Coupler in Magenta Image Forming Layer) The magenta image forming layer of the light-sensitive material of the present invention preferably contains a yellow coupler in addition to the magenta coupler. The difference in pKa between these couplers is preferably within 2 and more preferably within 1.5. This preferred yellow coupler is described in JP-A-6-95.
283 is a coupler represented by the general formula [Y-Ia] described in the right column on page 12. Particularly preferred among the couplers represented by the general formula [Y-Ia] are, when combined with the magenta coupler represented by the general formula [M-1], the pKa of the coupler represented by the combination [M-1]. It is a yellow coupler having a pKa value not lower than 3 or more.

Specific examples of the compound as the yellow coupler include Y-1 and Y-2 described on pages 12 to 13 of JP-A-6-95283 and JP-A-2-139542.
(Y-1) to (Y-58) described on pages 17 to 17 can be preferably used, but are not limited thereto.

(Cyan Coupler) As the cyan coupler contained in the cyan image forming layer, in addition to the compounds represented by the above-mentioned general formulas (I) to (IV), known phenolic, naphthol or imidazole compounds can be used. A system coupler can be used. For example, a phenol coupler substituted with an alkyl group, an acylamino group or a ureido group, a naphthol coupler formed from a 5-aminonaphthol skeleton, a 2-equivalent naphthol coupler having an oxygen atom introduced as a leaving group, and the like are typical examples. is there. Among these, preferred compounds include the general formulas [CI] and [C-II] described in JP-A-6-95283, page 13.

The cyan coupler is usually a silver halide 1
1 × 10 ⁻³ to 1 mol, preferably 1 × 10 ⁻² per mol
８8 × 10 ⁻¹ mol can be used.

(Yellow Coupler in Yellow Image Forming Layer) As the yellow coupler contained in the yellow image forming layer, known acylacetanilide couplers and the like can be preferably used. Specific examples of yellow couplers include, for example, JP-A-3-241345
Compounds represented by YI-1 to Y-I-55 described on page 11 or compounds represented by Y-1 to Y-30 described on page 11 to 14 of JP-A-3-209466 can also be preferably used. Furthermore, couplers represented by the general formula [Y-I] described in JP-A-6-95283, page 21, can also be mentioned.

In the present invention, λmax of the spectral absorption of the formed yellow dye image is preferably 425 nm or more, and λL0.2 is preferably 515 nm or less.

The λL0.2 of the spectral absorption of the yellow image is a value defined by the contents described in JP-A-6-95283, page 21, right column, lines 1 to 24. It is a spectral absorption characteristic showing the magnitude of absorption.

The yellow coupler is usually used in the silver halide emulsion layer in an amount of 1 × 10 ^-3 per mol of silver halide.
To 1 mol, preferably 1 × 10 ⁻² to 8 × 10 ⁻¹ mol.

In order to adjust the spectral absorption characteristics of the magenta, cyan and yellow dye images, it is preferable to add a compound having a color tone adjusting effect. As the compound for this, compounds represented by the general formulas [HBS-I] and [HBS-II] described in JP-A-6-95283, page 22, are more preferable, and more preferably the compounds represented by the general formula described on page 22 of the same publication. It is a compound represented by [HBS-II].

The yellow, magenta and cyan image forming layers in the light-sensitive material of the present invention are laminated and coated on a support. The order from the support may be any order. One preferred embodiment is, for example, a cyan image forming layer, a magenta image forming layer, and a yellow image forming layer from the side close to the support. In addition, an intermediate layer, a filter layer, a protective layer, and the like can be provided as necessary.

(Anti-fading agent) An anti-fading agent can be used in combination with each of the magenta, cyan and yellow couplers in order to prevent the formed dye image from being discolored due to light, heat, humidity and the like. Preferred compounds are described in JP-A-2-66.
No. 541, page 3, phenyl ether compounds represented by the general formulas I and II; JP-A-3-174150, phenolic compounds represented by the general formula VIIB; and JP-A-64-90445, An amine compound represented by the formula A, represented by the general formula XI described in JP-A-62-182741.
Metal complexes represented by I, XIII, XIV and XV are particularly preferred for magenta dyes. Further, a compound represented by the general formula I 'described in JP-A-1-19649 and
The compounds represented by the general formula II described in No. 1417 are particularly preferred for yellow and cyan dyes.

(Organic Solvent) When the oil-in-water type emulsification dispersion method is used to add the coupler or other organic compound used in the light-sensitive material, it is usually added to a water-insoluble high boiling organic solvent having a boiling point of 150 ° C. or more. If necessary, the mixture is dissolved with a low boiling point or a water-soluble organic solvent in combination, and emulsified and dispersed in a hydrophilic binder such as an aqueous gelatin solution using a surfactant.

As a dispersing means, a stirrer, a homogenizer, a colloid mill, a flow jet mixer, an ultrasonic disperser, or the like can be used. After or simultaneously with the dispersion, a step of removing the low boiling organic solvent may be added.

Examples of the high boiling point organic solvent which can be used for dissolving and dispersing the coupler and the like include phthalic acid esters such as dioctyl phthalate, di-i-decyl phthalate and dibutyl phthalate, tricresyl phosphate and trioctyl. Phosphate esters such as phosphates and phosphine oxides such as trioctylphosphine oxide are preferably used. Further, the high boiling point organic solvent preferably has a dielectric constant of 3.5 to 7.0.
Of course, two or more high-boiling organic solvents can be used in combination.

Particularly preferred compounds as high boiling organic solvents are those represented by the general formula [H] described in JP-A-6-95283, page 22.
Compounds represented by BS-I] and [HBS-II], particularly preferably compounds represented by [HBS-II]. Specific compounds include, for example, JP-A-2-124
No. 568, pp. 53-68.
95.

(Surfactant) As a compound preferable as a surfactant used for dispersing a photographic additive used in a light-sensitive material or adjusting a surface tension at the time of coating, a hydrophobic compound having 8 to 30 carbon atoms in one molecule. And those containing an acid group and a sulfo group or a salt thereof. Specifically, Japanese Unexamined Patent Publication No.
No. 26854, A-1 to A-11.
Also, a surfactant in which a fluorine atom is substituted for an alkyl group is preferably used. These dispersions are usually added to a coating solution containing a silver halide emulsion, but the shorter the time from dispersion to the time of addition to the coating solution, and the shorter the time from addition to the coating solution to coating. Well, both are preferably within 10 hours,
It is more preferably within 3 hours, and more preferably within 20 minutes.

(Anti-turbidity agent) In the light-sensitive material, a compound which reacts with an oxidized developing agent is added to a layer between the light-sensitive layers to prevent color turbidity. To improve fog and the like. As a compound for this, a hydroquinone derivative is preferable,
More preferred are dialkylhydroquinones such as 2,5-di-t-octylhydroquinone. Particularly preferred compounds are those represented by the general formula II described in JP-A-4-133056, and compounds II-1 to II-14 described on pages 13 to 14 and compound 1 described on page 17 are the same. No.

(Ultraviolet Absorber) It is preferable to add an ultraviolet absorber to the light-sensitive material to prevent static fog or to improve the light fastness of the dye image. Preferred ultraviolet absorbers include benzotriazoles,
Particularly preferred compounds include compounds represented by formula III-3 described in JP-A-1-250944,
No.-66646, a compound represented by the general formula III,
UV-1L to UV described in JP-A-63-187240
-27L, compounds represented by formula I described in JP-A-4-1633, and compounds represented by formulas (I) and (II) described in JP-A-5-165144.

It is preferable that the light-sensitive material contains an oil-soluble dye or pigment because whiteness is improved. Representative specific examples of the oil-soluble dyes include compounds 1 to 27 described in pages (8) to (9) of JP-A-2-842.

(Hardener) As the hardener for gelatin used in the present invention, a vinylsulfone hardener or a chlorotriazine hardener is preferably used alone or in combination. JP-A-61-249054 and 61-245
It is preferable to use the compounds described in No. 153 and the like.

(Preservative and antifungal agent) In order to prevent the growth of fungi and bacteria which adversely affect the photographic performance and image preservability, the preservative and antifungal agent described in JP-A-3-157646 are contained in the colloid layer. It is preferred to add a fungicide.

(Sharpness improver) The light-sensitive material of the present invention may contain black colloidal silver in the non-photosensitive layer in order to improve sharpness. The amount of black colloidal silver added is preferably 0.03 g / m ² or more, and more preferably 0.08 g / m ² or more.

The black colloidal silver is reduced by keeping silver nitrate alkaline in gelatin in the presence of a reducing agent such as hydroquinone, phenidone, ascorbic acid, pyrogallol or dextrin, and then neutralizing and cooling to reduce the gelatin. After setting, it is obtained by removing the reducing agent and unnecessary salts by a noodle washing method. When the colloidal silver particles are formed in the presence of an azaindene compound or a mercapto compound during the reduction under alkaline conditions, colloidal silver particles having a uniform particle size can be obtained.

Also, in order to improve sharpness,
A white pigment may be contained in the non-photosensitive layer. The addition amount is preferably 0.3 g / m ² or more, and more preferably 0.8 g / m ² or more.

As the white pigment, an inorganic or organic white pigment can be used, and preferably an inorganic white pigment, such as a sulfate of an alkaline earth metal such as barium sulfate or calcium carbonate. And the like, alkaline earth metal carbonates, finely divided silica, synthetic silicate silica, calcium silicate, alumina, alumina hydrate, titanium oxide, zinc oxide, talc, clay and the like.

Of these, barium sulfate is preferred.
Calcium carbonate and titanium oxide, more preferably barium sulfate and titanium oxide. The titanium oxide may be of rutile type or anatase type, and those whose surface is coated with a metal oxide such as hydrous alumina or hydrous ferrite are also used.

(Sensitizing Dye) The silver halide emulsion can be optically sensitized by a sensitizing dye. Using a combination of sensitizing dyes used for supersensitization, such as an internal latent image type silver halide emulsion and a negative type silver halide emulsion,
It is also useful for the silver halide emulsion in the present invention. Sensitizing dyes are described in Research Disclosure (hereinafter RD).
No. 15162 and 17643 can be referred to.

It is preferable to add a compound for adjusting the toe gradation to the light-sensitive material. Preferred compounds include
The formula [AO-] described in JP-A-6-95283, page 17
Compounds represented by II] are preferred. Specific examples of the compound include compounds II-1 to II-8 described on page 18 of the publication. The addition amount of the compound [AO-II] is preferably 0.001 to 0.50 g / m ² , more preferably 0.005 to 0.20 g / m ² . The compounds may be used alone or in combination of two or more. Further, a quinone derivative having 5 or more carbon atoms can be used in combination with the compound of [AO-II]. However, in any of these cases, the amount used is 0.001 to 0.50 g as a whole.
/ M ² .

It is preferable to include a fluorescent whitening agent in the light-sensitive material or the processing solution of the present invention in order to improve whiteness.

(Processing) The developing solution of the present invention may contain known developing solution component compounds in addition to the developing agent. Usually, an alkali agent having a pH buffering action, a development inhibitor such as chloride ion, bromide ion, and benzotriazole, a preservative, and a chelating agent are used.

After the development, the light-sensitive material of the present invention is subjected to a bleaching process and a fixing process. The bleaching process may be performed simultaneously with the fixing process. After the fixing process, a washing process or a stabilizing process is performed.

The developing apparatus used for developing the photosensitive material of the present invention may be a roller transport type in which the photosensitive material is transported by interposing a roller disposed in a processing tank. And an endless belt system for transport.

The photographic material of the present invention may further contain known photographic additives. Examples of this known photographic additive include, for example, RD17643, page 23, paragraphs III to 2
The compounds described in section XXI on page 9 and RD18716, pages 648 to 651 can be mentioned.

[0160]

EXAMPLES The present invention will now be described specifically with reference to examples, but embodiments of the present invention are not limited thereto.

Example 1 <Preparation of Emulsion Em-P1> While controlling the aqueous solution containing ossein gelatin at 40 ° C., an aqueous solution containing ammonia and silver nitrate, potassium bromide and sodium chloride (KBr: NaCl = 98: 2) and an aqueous solution containing at the same time by the control double jet method.
A 50 μm cubic silver chlorobromide core emulsion was obtained. At that time, the pH and pAg were controlled so that a cube was obtained as the particle shape.

To the obtained core emulsion, an aqueous solution containing ammonia and silver nitrate and an aqueous solution containing potassium bromide and sodium chloride (KBr: NaCl = 45: 55 in a molar ratio) were simultaneously added by a control double jet method. The shell was formed until the average particle size became 0.66 μm. At this time, p is set so that a cube is obtained as the particle shape.
H and pAg were controlled.

After washing with water to remove water-soluble salts, gelatin was added to obtain an emulsion Em-P1. The distribution width of this emulsion Em-P1 was 8%.

<Preparation of Emulsion Em-P2> While controlling the aqueous solution containing ossein gelatin at 40 ° C., an aqueous solution containing ammonia and silver nitrate, potassium bromide and sodium chloride (KBr: NaCl = 98: 2 by molar ratio). ) Was added simultaneously by the control double jet method to obtain a cubic silver chlorobromide core emulsion having a particle size of 0.45 μm. At this time, p is set so that a cube is obtained as the particle shape.
H and pAg were controlled.

To the obtained core emulsion, an aqueous solution containing ammonia and silver nitrate and an aqueous solution containing potassium bromide and sodium chloride (KBr: NaCl = 45: 55 in molar ratio) were simultaneously added by a control double jet method. The shell was formed until the average particle size became 0.60 μm. At this time, p is set so that a cube is obtained as the particle shape.
H and pAg were controlled.

After washing with water to remove water-soluble salts, gelatin was added to obtain an emulsion Em-P2. The distribution width of this emulsion Em-P2 was 8%.

<Preparation of Emulsion Em-P3> While controlling the aqueous solution containing ossein gelatin at 40 ° C., an aqueous solution containing ammonia and silver nitrate, potassium bromide and sodium chloride (KBr: NaCl = 98: 2 by molar ratio). ) Was added simultaneously by a control double jet method to obtain a cubic silver chlorobromide core emulsion having a particle size of 0.42 μm. At this time, p is set so that a cube is obtained as the particle shape.
H and pAg were controlled.

To the obtained core emulsion, an aqueous solution containing ammonia and silver nitrate and an aqueous solution containing potassium bromide and sodium chloride (KBr: NaCl = 45: 55 in a molar ratio) were simultaneously added by a control double jet method. The shell was formed until the average particle size became 0.53 μm. At this time, p is set so that a cube is obtained as the particle shape.
H and pAg were controlled.

After washing with water to remove water-soluble salts, gelatin was added to obtain an emulsion Em-P3. The distribution width of this emulsion Em-P3 was 10%.

<Preparation of Green-Sensitive Silver Halide Emulsion Em-1G> The emulsion Em-P1 was sensitized by adding 85 mg of a sensitizing dye GS-1 per mol of silver, followed by T-1 (4-hydroxy- 6-methyl-1,3,3a, 7-tetrazaindene) was added in an amount of 400 mg per mol of silver to prepare a green photosensitive emulsion Em-1G.

<Preparation of red-sensitive silver halide emulsion Em-1R> Sensitizing dyes RS-1 and RS-2 were added to emulsion Em-P2.
Was added in the amount of 35 mg per mol of silver, respectively, and a red-sensitive emulsion Em-1R was prepared in the same manner as the green-sensitive emulsion Em-1G, except that the emulsion was sensitized.

<Infrared-sensitive silver halide emulsion Em-1I
Preparation of R> Sensitizing dyes IRS-1 and IRS were added to emulsion Em-P3.
An infrared-sensitive emulsion Em-1IR was prepared in the same manner as in the green-sensitive emulsion Em-1G, except that color sensitization was performed by adding 9 mg of RS-2 per mol of silver.

[0173]

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[0174]

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[0175] The high density polyethylene on one side <Preparation of Photosensitive material 11 to 14> was laminated polyethylene melt containing dispersed at a content of 15 mass% of anatase type titanium oxide on the other side, per 1 m ² 115 g in mass
Em-1G, Em-1 on a paper pulp reflective support of
Using R and Em-1IR, each layer having the following constitution was applied on the side of the polyethylene layer containing titanium oxide so that the first layer was the lowermost layer, and gelatin was further applied on the back side.
00g / m ^2, a silica matting agent 0.65 g / m ² to prepare a photosensitive material 11 which is coated. Incidentally, as a hardener, H-1,
H-2 was added. Surfactants SU-1, SU-2 and SU-3 were added as coating aids and dispersion aids.

SU-1: Sodium sulfosuccinate di (2-ethylhexyl) ester sodium SU-2: Sodium sulfosuccinate di (2,2,3,3,4,4,5,5-octafluoropentyl) ester sodium SU-3: sodium tri-i-propylnaphthalene sulfonate H-1: 2,4-dichloro-6-hydroxy-s-triazine sodium H-2: tetrakis (vinylsulfonylmethyl) methane Coating amount (g / m ²⁾ 8th layer (ultraviolet absorbing layer) Gelatin 1.60 Ultraviolet absorbing agent (UV-1) 0.070 Ultraviolet absorbing agent (UV-2) 0.025 Ultraviolet absorbing agent (UV-3) 0.120 Silica matting agent 0 .01 7th layer (magenta image forming layer) Gelatin 1.25 Green photosensitive emulsion (Em-1G) 0.48 Magenta coupler (M-1) 0.24 Yellow coupler (Y-1) 0.03 Stain inhibitor (HQ-1) 0.035 Inhibitor (T-1, T-2, T-3, molar ratio 10: 1: 1) 0.0036 High boiling organic Solvent (SO-1) 0.38 6th layer (intermediate layer) Gelatin 0.95 Stain inhibitor (HQ-2) 0.03 Stain inhibitor (HQ-3) 0.01 Anti-irradiation dye (AI-2) 0.04 Fifth layer (cyan image forming layer) Gelatin 1.40 Red-sensitive emulsion (Em-1R) 0.38 Cyan coupler (C-1) 0.33 Stain inhibitor (HQ-1) 0.02 Inhibitor (T-1, T-2, T-3, molar ratio 10: 1: 1) 0.002 High boiling organic solvent (SO-1) 0.18 Fourth layer (intermediate layer) Gelatin 0.95 Stain Inhibitor (HQ-2) 0.03 Stain inhibitor (HQ-3) 0 .01 Anti-irradiation dye (AI-1) 0.05 Third layer (yellow image forming layer) Gelatin 1.45 Infrared photosensitive emulsion (Em-1IR) 0.44 Yellow coupler (Y-1) 0.21 Yellow coupler (Y-2) 0.21 Inhibitor (T-1, T-2, T-3, molar ratio 10: 1: 1) 0.004 Stain inhibitor (HQ-1) 0.004 High boiling organic Solvent (SO-1) 0.30 Second layer (intermediate layer) Gelatin 1.20 First layer (colloidal silver-containing layer) Gelatin 2.20 Liquid paraffin 0.55 Anti-irradiation dye (AI-4) 0.05 Anti-irradiation dye (AI-5) 0.04 Black colloidal silver 0.04 Titanium oxide 0.40 The amount of silver halide emulsion added was expressed in terms of silver.

The structure of each compound is shown below. SO-1: tri (n-octyl) phosphine oxide HQ-1: 2,5-di (t-butyl) hydroquinone HQ-2: 2,5-di [(1,1-dimethyl-4-hexyloxycarbonyl ) Butyl] hydroquinone HQ-3: Mass ratio of 2,5-di-sec-dodecylhydroquinone, 2,5-di-sec-tetradecylhydroquinone and 2-sec-dodecyl-5-sec-tetradecylhydroquinone 1: 1 : 2 mixture T-2: 1- (3-acetamidophenyl) -5-mercaptotetrazole T-3: N-benzyladenine

[0178]

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[0179]

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[0180]

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[0181]

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The amount of gelatin applied to each layer was reduced at the same ratio,
Light-sensitive materials 12 to 14 were prepared in the same manner as light-sensitive material 11 except that the total amount of gelatin was changed as shown in Table 1.

The light-sensitive material obtained above was 580 mm wide,
It was cut to a length of 55 m, wound around a core so that the emulsion surface was exposed, processed into a roll, and housed in a bright room type cartridge.

The roll photosensitive material obtained above is set in the photosensitive material storage section of the image forming apparatus, the photosensitive material is pulled out from the cartridge, and the photosensitive material cut into a length of 700 mm is wound around a drum, and has a different wavelength. An image was formed by an image forming apparatus including an image exposing unit including three laser exposure units and an automatic developing unit to obtain an output image sample.

The images were such that the image formation rate of each of the yellow, magenta and cyan images was 50%. However, this image includes a wedge chart in which the exposure amount is changed stepwise. The 50% image was exposed and developed on 30 sheets.

Next, the images were changed so that the image formation rates of the yellow, magenta and cyan images would be 80%. However, this image includes a wedge chart in which the exposure amount is changed stepwise. 80% of this
Subsequently, 30 images were exposed and developed, respectively.

Next, the images were changed so that the image forming rates of the yellow, magenta and cyan images were 20%. However, this image includes a wedge chart in which the exposure amount is changed stepwise. This 20%
Subsequently, 30 images were exposed and developed, respectively.

Next, the aforementioned 80% image is continuously converted to 30%.
Exposure and development processing were performed on each of the 20 sheets, and then exposure and development processing were performed on each of the 30 20% images described above.

When the roll-shaped sample was lost in the middle, it was replaced with a new roll-shaped sample.

As the laser exposure light source for the exposure, a green laser is a helium / neon laser (544 nm),
The red laser is a semiconductor laser (AlGaInAs: about 670 nm), and the infrared laser is a semiconductor laser (GaAs).
lAs: about 780 nm). The photosensitive material was adhered to the rotating drum by suction, and an image was recorded by main scanning and sub-scanning at a rotation speed of 2000 revolutions / minute. The exposure output of the green laser light source unit was 1 μW, the exposure output of the red laser light source unit was 16 μW, and the exposure output of the infrared laser light source unit was 80 μW.

The photosensitive material 1 used in this running process
The replenishment amount R [ml] of the developing solution per m < ² > was as follows, when the image formation rate was I [%] (where I is 0 to 100), and each of the running processes was performed.

Replenishment formula 1: R = 280 + I × 2 Replenishment formula 3: R = 200 + I × 3.6 Replenishment formula 4: R = 110 + I × 5.4 Replenishment formula 4: R = 110 + I × 5.4 It was made to replenish every sheet.

The processing was performed according to the following processing step-A. However, in the fog exposure, the surface of the photosensitive material was uniformly exposed to the whole surface through a layer of the developing solution having a thickness of 3 mm while being immersed in the developing solution.

[0194] The processing liquid composition per 1000 ml is shown below.

(Color developing solution) Benzyl alcohol 15.0 ml Ceric sulfate 0.015 g Ethylene glycol 8.0 ml Potassium sulfite 2.5 g Potassium bromide 0.6 g Sodium chloride 0.2 g Potassium carbonate 25.0 g T-10 0.1 g hydroxylamine sulfate 5.0 g sodium diethylenetriaminepentaacetate 2.0 g 4-amino-3-methyl-N-ethyl-N- (β-methanesulfonamidoethyl) aniline sulfate (CD-1) 4.6 g fluorescence Brightener (4,4'-diaminostilbene disulfonic acid derivative) 1.0 g Potassium hydroxide 2.0 g Diethylene glycol 15.0 ml Water is added to make the total volume 1000 ml, and the pH is adjusted to 10.15.

(Bleach-fixing solution) Ferric ammonium diethylenetriaminepentaacetate 90.0 g Diethylenetriaminepentaacetic acid 3.0 g Ammonium thiosulfate (70% aqueous solution) 180.0 ml Ammonium sulfite (40% aqueous solution) 27.5 ml 3-mercapto-1, 2,4-Triazole 0.15 g Adjust the pH to 7.1 with potassium carbonate or glacial acetic acid, and add water to make the total volume 1000 ml.

(Stabilizing solution) o-phenylphenol 0.3 g potassium sulfite (50% aqueous solution) 12.0 ml ethylene glycol 10.0 g 1-hydroxyethylidene-1,1-diphosphonic acid 2.5 g bismuth chloride 0.2 g zinc sulfate Heptahydrate 0.7 g ammonium hydroxide (28% aqueous solution) 2.0 g polyvinylpyrrolidone (K-17) 0.2 g fluorescent brightener (4,4'-diaminostilbene disulfonic acid derivative) 2.0 g The total volume is made up to 1000 ml and the pH is adjusted to 7.5 with ammonium hydroxide or sulfuric acid.

Incidentally, the stabilizing treatment was of a countercurrent type having a three-tank configuration. The composition of the replenisher per 1000 ml is shown below.

(Color developing replenisher) Benzyl alcohol 18.5 ml Ceric sulfate 0.015 g Ethylene glycol 10.0 ml Potassium sulfite 2.5 g Potassium bromide 0.3 g Sodium chloride 0.2 g Potassium carbonate 25.0 g T-1 0.1 g hydroxylamine sulfate 5.0 g sodium diethylenetriaminepentaacetate 2.0 g 4-amino-3-methyl-N-ethyl-N- (β-methanesulfonamidoethyl) aniline sulfate (CD-1) 5.5 g Fluorescent brightener (4,4'-diaminostilbene disulfonic acid derivative) 1.0 g Potassium hydroxide 2.0 g Diethylene glycol 18.0 ml Water is added to make the total volume 1000 ml, and the pH is adjusted to 10.35.

(Bleach-fixing replenisher) Same as the above-mentioned bleach-fixer.

(Stable replenisher) The same as the above stabilizer.

The replenishment amounts of the bleach-fixing solution and the stabilizing solution were 400 ml per 1 m ² of the light-sensitive material.

The capacity of each processing tank was 20 L for the color developing solution tank, 8 L for the bleach-fixing solution tank, and 6 L for all three stabilizing solution tanks.
It is.

Of the images obtained in this manner, 30
The maximum density of the single cyan color of each of the 60th, 90th, 120th, and 150th samples was measured, and the density fluctuation based on the 30th density was determined. Table 1 shows the obtained results.

[0205]

[Table 1]

As is clear from the results shown in Table 1, when the developing solution is replenished according to the replenishing formulas 2 and 3 corresponding to claim 1 of the present invention, a stable image can be obtained even when the running process is performed. I understand. Further, the use of the photosensitive materials 12, 13, 14 according to claim 2 of the present invention is as follows.
It can be seen that a more stable image can be obtained than when the photosensitive material 11 is used.

Example 2 Light-sensitive materials 21 to 23 were prepared by changing the light-sensitive emulsion of the fifth layer from the light-sensitive material 11 of Example 1 as shown in Table 2.

<Preparation of Red-Sensitive Silver Halide Emulsion Em-2R> While controlling the aqueous solution containing ossein gelatin at 40 ° C., an aqueous solution containing ammonia and silver nitrate, potassium bromide and sodium chloride (KBr by molar ratio) : NaCl
= 98: 2) was added simultaneously by a control double jet method to obtain a cubic silver chlorobromide core emulsion having a particle size of 0.38 µm. At that time, the pH and pAg were controlled so that a cube was obtained as the particle shape.

An aqueous solution containing ammonia and silver nitrate and an aqueous solution containing potassium bromide and sodium chloride (KBr: NaCl = 45: 55 in molar ratio) were simultaneously added to the obtained core emulsion by a control double jet method. The shell was formed until the average particle size became 0.48 μm. At this time, p is set so that a cube is obtained as the particle shape.
H and pAg were controlled.

After washing with water to remove water-soluble salts, gelatin was added to prepare an emulsion. The distribution of this emulsion is 8%
Met.

Next, sensitizing dyes RS-1 and R
A red-sensitive emulsion Em-2R was prepared in the same manner as in the green-sensitive emulsion Em-1G of Example 1, except that S-2 was added in an amount of 42 mg per mol of silver to perform color sensitization.

<Preparation of Red-Sensitive Silver Halide Emulsion Em-3R> While controlling the aqueous solution containing ossein gelatin at 40 ° C., an aqueous solution containing ammonia and silver nitrate, potassium bromide and sodium chloride (KBr in molar ratio) : NaCl
= 98: 2) was added simultaneously by the control double jet method to obtain a cubic silver chlorobromide core emulsion having a particle size of 0.27 µm. At that time, the pH and pAg were controlled so that a cube was obtained as the particle shape.

To the obtained core emulsion, an aqueous solution containing ammonia and silver nitrate and an aqueous solution containing potassium bromide and sodium chloride (KBr: NaCl = 45: 55 in molar ratio) were simultaneously added by a control double jet method. The shell was formed until the average particle size became 0.38 μm. At this time, p is set so that a cube is obtained as the particle shape.
H and pAg were controlled.

After washing with water to remove water-soluble salts, gelatin was added to prepare an emulsion. The distribution of this emulsion is 7%
Met.

Next, sensitizing dyes RS-1 and R
A red-sensitive emulsion Em-3R was prepared in the same manner as in the green-sensitive emulsion Em-1G of Example 1, except that S-2 was added in an amount of 51 mg per mol of silver to perform color sensitization.

<Preparation of Red-Sensitive Silver Halide Emulsion Em-4R> While controlling the aqueous solution containing ossein gelatin at 40 ° C., an aqueous solution containing ammonia and silver nitrate, potassium bromide and sodium chloride (KBr in molar ratio) : NaCl
= 98: 2) was added simultaneously by a control double jet method to obtain a cubic silver chlorobromide core emulsion having a particle size of 0.22 µm. At that time, the pH and pAg were controlled so that a cube was obtained as the particle shape.

To the obtained core emulsion, an aqueous solution containing ammonia and silver nitrate and an aqueous solution containing potassium bromide and sodium chloride (KBr: NaCl = 45: 55 in molar ratio) were simultaneously added by a control double jet method. The shell was formed until the average particle size became 0.32 μm. At this time, p is set so that a cube is obtained as the particle shape.
H and pAg were controlled.

After washing with water to remove water-soluble salts, gelatin was added to prepare an emulsion. The distribution of this emulsion is 7%
Met.

Next, sensitizing dyes RS-1 and R
A red-sensitive emulsion Em-4R was prepared in the same manner as in the green-sensitive emulsion Em-1G of Example 1, except that S-2 was added in an amount of 59 mg per mol of silver to perform color sensitization.

Using the obtained photosensitive materials 21 to 23 and the photosensitive material 11 prepared in Example 1 for comparison, a running process similar to that in Example 1 was performed. The same evaluation as in Example 1 was performed, and the obtained results are shown in Table 2.

[0221]

[Table 2]

As is clear from the results in Table 2, when the developing solution is replenished according to the replenishing formulas 2 and 3 corresponding to claim 1 of the present invention, a stable image can be obtained even when the running process is performed. I understand. Further, the use of the photosensitive materials 21, 22, 23 according to claim 3 of the present invention is as follows.
It can be seen that a more stable image can be obtained than when the photosensitive material 11 is used.

Example 3 To the photosensitive material 11 of Example 1, the amounts of the infrared-sensitive emulsion of the third layer, the red-sensitive emulsion of the fifth layer, and the green-sensitive emulsion of the seventh layer were the same. The photosensitive materials 31 to 33 in which the total amount of silver was changed as shown in Table 3 were prepared.

Using the obtained light-sensitive materials 31 to 33 and the light-sensitive material 11 prepared in Example 1 for comparison, the same running process as in Example 1 was performed. The same evaluation as in Example 1 was performed, and the obtained results are shown in Table 3.

[0225]

[Table 3]

As is clear from the results in Table 3, when the developing solution is replenished according to the replenishing formulas 2 and 3 corresponding to claim 1 of the present invention, a stable image can be obtained even when the running process is performed. I understand. Further, the use of the photosensitive materials 31, 32, 33 corresponding to claim 4 of the present invention is as follows.
It can be seen that a more stable image can be obtained than when the photosensitive material 11 is used.

Example 4 Photosensitive materials 41 to 43 were prepared by changing the cyan coupler of the fifth layer as shown in Table 4 from the photosensitive material 11 of Example 1.

Using the obtained photosensitive materials 41 to 43 and the photosensitive material 11 prepared in Example 1 for comparison, a running process similar to that in Example 1 was performed. The same evaluation as in Example 1 was performed, and the obtained results are shown in Table 4.

[0229]

[Table 4]

As is clear from the results in Table 4, when the developing solution is replenished according to the replenishing formulas 2 and 3 corresponding to claim 1 of the present invention, a stable image can be obtained even when the running process is performed. I understand. Further, the photosensitive material 41, 42, 43 according to claim 5 of the present invention uses:
It can be seen that a more stable image can be obtained than when the photosensitive material 11 is used.

Example 5 A developing solution was prepared in the same manner as in Example 1 except that the developing agent contained in the developing solution in the processing step-A was changed to the developing agent shown in Table 5, and the developing solution was changed. A running process was performed using the photosensitive material 11 in the same manner as in Example 1.
The amount of the developing agent was set to an amount equivalent to the developing agent contained in the developing solution of the processing step-A. The same evaluation as in Example 1 was performed, and the obtained results are shown in Table 5.

[0232]

[Table 5]

As is clear from the results in Table 5, when the developing solution is replenished according to the replenishing formulas 2 and 3 corresponding to claim 1 of the present invention, a stable image can be obtained even when the running process is performed. I understand. Further, the product processed using the developing agent according to claim 6 of the present invention is a developing agent C
It can be seen that a more stable image can be obtained than the image processed using D-1.

[0234]

According to the present invention, a color image forming method for exposing and processing digitized image information on a silver halide color light-sensitive material using a light source such as a laser or a light-emitting diode, and in particular, a network using a computer. The point image information is converted into a digital signal, and the silver halide color light-sensitive material is exposed to the digital signal based on the digital signal. An excellent color image forming method can be provided.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) G03C 7/413 G03C 7/413 7/44 7/44

Claims (6)

[Claims] A silver halide color light-sensitive material having at least one light-sensitive layer containing silver halide grains on a support is exposed on the basis of digitized image information, and the image formation rate is zero. The relationship between the integral value A of the replenishment amount of the developer at 50 to 100% and the integral value B of the replenishment amount of the developer at an image formation rate of 50 to 100% satisfies 1 <B / A <2. The relational expression between the replenishment amount of the developer and the image formation rate is set as follows,
A color image forming method, wherein the processing is performed by changing the replenishing amount of the developer according to the image forming rate according to the relational expression. 2. The total amount of gelatin applied on the side having a photosensitive layer to the support of a silver halide color light-sensitive material is 1
^2. The color image forming method according to claim 1, wherein the amount is 0.0 g / m < ² > or less. 3. The color image according to claim 1, wherein the average particle diameter of silver halide grains contained in at least one photosensitive layer of the silver halide color photosensitive material is 0.5 μm or less. Forming method. 4. The silver halide color light-sensitive material according to claim 1, wherein the total amount of silver halide grains contained in the photosensitive layer is 1.2 g / m ² or less in terms of silver. Color image forming method. 5. The method according to claim 1, wherein at least one of the photosensitive layers contains a cyan coupler represented by the following general formula (I), (II), (III) or (IV). The color image forming method as described above. Embedded image It represents wherein, R ¹¹ and R ¹³ are each branched alkyl group, a substituted alkyl group, a substituted aryl group or a heterocyclic group, R ¹²
And R ¹⁴ represent a substituent. X ¹¹ and X ¹² each represent a hydrogen atom or an atom or group which can be removed by reaction with an oxidized form of a color developing agent. Embedded image In the formula, R ²¹ , R ²² , R ²³ and R ²⁴ , R ²⁵ , R ²⁶ each represent an electron-withdrawing group, and X ²¹ and X ²² each represent a hydrogen atom or a reaction with an oxidized form of a color developing agent. Represents a detachable atom or group. 6. The color image forming method according to claim 1, wherein the developer contains a compound represented by the following general formula (V). Embedded image In the formula, R ¹ and R ² each represent an alkyl group, R ¹ and R ² may be the same or different, and R ¹ and R ² may combine with each other to form a ring.