JPH0368938A - Reflective color photosensitive material and color image forming method - Google Patents

Abstract

PURPOSE:To obtain a reflective color photosensitive material giving relatively low color density and maintaining high image quality even when the amt. of silver halide used is reduced by rendering prescribed Dc and prescribed R at a shoulder part to the characteristic curve of each of at least two of three photosensitive layers formed on a reflective support. CONSTITUTION:When a silver halide photosensitive layer contg. a yellow coupler, a silver halide photosensitive layer contg. a magenta coupler and a silver halide photosensitive layer contg. a cyan coupler are formed on a reflective support to obtain a reflective color photosensitive material, 2.5 Dc (effective shoulder color density) and <=6.5 R (the radius of curvature of shoulder gradient with 1/10 of the logarithm of density or light exposure as unit) at a shoulder part are rendered to the characteristic curve of each of at least two of the photosensitive layers. A printed photograph having visually high image quality can be obtd.

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention provides a reflective color photosensitive material and a color image forming method suitable for ultra-quick and simple development processing, reduction in production costs, and substantially high image quality. In particular, the present invention relates to reflective color photosensitive materials and color image forming methods for converting software information into high-quality hard copies.

(Prior Art) Recently, along with advances in information processing, storage, and image processing technology, and the use of communications, technology for making hard copies from soft information has become widely used.

In addition, advances in silver halide photosensitive materials and compact, quick and easy processing machines (such as mini-lab systems)
With the development of , it has become possible to obtain extremely high-quality photographs relatively easily. For this reason, there is a demand for a color photosensitive material for printing that can further simplify the development process and produce high-quality photographs at low cost.

JP-A No. 62-172347 states that in order to reduce the color development time to within 2 minutes and 30 seconds, the amount of coupler to be used and the amount of silver halide to be used should be 0.78 g/M or less. No. 61-45226, Japanese Patent Publication No. 62-67540
No. 62-141553, No. 62-135828, and French Patent No. 1483390 disclose specific photosensitive layers, especially cyan coloring layers, in order to improve poor cyan coloring and reduce processing replenishment amount. It is described that the amount of silver halide used can be reduced.

(Problems to be Solved by the Invention) However, in the case of reflective color light-sensitive materials, it is generally difficult to maintain the gradation by rapid and simple processing, and the color density is also likely to decrease or fluctuate. Reducing the amount of silver halide used is advantageous in speeding up development, but there are problems in that the color density decreases or becomes unstable, the gradation reproduction range narrows, and the image quality deteriorates.

On the other hand, JP-A-61-137149 describes the spectral sensitivity and contrast of each photosensitive layer in an infrared color photographic element. However, in this technique, the amount of silver halide used is 0.9 g/bo or more and conventional standard development processing is performed, and the above-mentioned image quality problems occur due to rapid development processing or reduction of the amount of silver halide used. There is no suggestion of a method for improving dots or their deterioration, especially for improving gradation according to the present invention.

Therefore, the object of the present invention is, firstly, to provide a reflective film which has relatively low color density, or which has no substantial quality of finish even if the amount of silver halide used is reduced, and which is compatible with ultra-quick and simple development processing. Our objective is to provide color photosensitive materials. The second objective is to provide a reflective color photosensitive material that produces high-quality photographs at low production costs. Other objects will be apparent from the description herein.

(Means for Solving the Problems) The inventors studied the various factors that make up a photograph of high image quality even with a relatively low maximum color density, and found that the object of the present invention can be achieved as follows.

A reflective color in which a silver halide photosensitive layer containing a yellow coupler (YL), a silver halide photosensitive layer containing a magenta coupler (ML), and a silver halide photosensitive layer containing a cyan coupler (CL) are provided on a reflective support. In the photosensitive material, in the characteristic curve of at least two of the three photosensitive layers, the specified Dr value (effective shoulder color density) is 2.5 or less, and the specified shoulder R 1. A reflective color photosensitive material having a value (radius of curvature of a shoulder gradation in units of 0.1 of the logarithm of density or exposure amount) of 6.5 or less.

In the present invention, at least two of the three photosensitive layers have a defined DC value (effective shoulder color density) of 2.5 or less, and a defined shoulder R value (
The radius of curvature of the shoulder gradation, whose unit is 0.1 of the logarithm of the density or exposure amount, is 6.5 or less.

The above-mentioned "specified Oc value" (hereinafter simply referred to as "rDc value") and "specified R value" (hereinafter simply referred to as "R value") are characteristics of photosensitive materials that have been subjected to practical development processing. The obtained characteristic curve can be easily obtained according to the prescribed plotting method shown below.

That is, a color photosensitive material is subjected to light wedge exposure using three color separation filters, for example each filter having a spectral transmittance curve as illustrated in FIG. get. The color density of the obtained sample is measured to obtain a characteristic curve. FIG. 1 illustrates characteristic curves obtained using the color photosensitive material according to the present invention.

The R value of the shoulder in the present invention means a measured value representing the degree of steepness of the gradation at the shoulder of the characteristic curve, and can be easily determined as follows.

Using a ruler marked with concentric circles with different radii, move toward the shoulder gradation area while touching the concentric circles to the linear gradation area. Find the circle that best matches the shoulder gradation area and the position P of its center. At this time, let b be the point closest to the linear gradation part where the inside of the nucleus matches the characteristic curve, let C be the point closest to the highest density where the inside of the nucleus matches the characteristic curve, and let q be the midpoint of the arc bc. . The R value according to the present invention is the radius of the circle (concentration 061 or Io
The R value according to the present invention is, for example, when a larger circle is brought into contact with the shoulder gradation part. , the midpoint q of the arc bc is outside the circle, and when a smaller circle is brought into contact with the circle, the midpoint q is outside the circle, so that the R value can be easily determined in practice.

DC (I!!) in the present invention is the effective shoulder color density of the characteristic curve, and is the color density value at the 0 point.In the leg part of the gradation, it is also the 0 point and the b point in the shoulder gradation part, respectively. Points a and d can be found in the same way, and therefore the R value of the leg can also be found in the same way.In other words, find the circle that best matches the leg gradation part and its center S, and find that the inside of the nucleus has a characteristic Let a be the point closest to the highest density that matches the curve, let d be the point closest to the linear gradation part where the core matches the characteristic curve, and let R be the radius inside the core. The difference in the exposure amount scale is called the exposure range ES, and the difference in color density is called the density range OS.

-II, when the DC value becomes low, the point b in the shoulder gradation area decreases like point b', unless special measures are taken, and the R value at the shoulder area increases.

As a result of measuring the DC value and shoulder R value of various conventionally known photosensitive materials, it was found that when the DC value exceeds 2.5, the photosensitive layer has an R value as low as about 4 (
Some photosensitive materials have a cyan coupler-containing layer, but when the Dc value is as low as 2.5 or less, the R value is 7.
It was found that the R value tends to increase as the Dc value decreases.

In the present invention, when the Dc value is 2.5 or less, in order to obtain a print photograph of substantially high image quality, particularly good appearance (visually high image quality), it is surprisingly necessary to On the other hand, we have found that it is important to lower the R value for the gradation of the shoulder area.

Therefore, the characteristic curve of the reflective color light-sensitive material according to the present invention is characterized in that when the Dc value is 2.5 or less, the R value of the shoulder portion is low, preferably 6.5 or less.

When the Dc value is lower than 2.5, the reproducibility of details in shadow areas generally decreases, the sharpness of the image decreases, and the image becomes dull and less expressive. It has been found that the appearance of these defects can be improved by reducing the R value of the shoulder gradation area. Regarding the gradation of the shoulder area, increasing the contrast especially in the bQ area increases the sharpness of the image in the shoulder gradation area,
It is thought to enhance the expressiveness of the shadow area. Preferably, when the Dc value is 2.4 or less, the R value of the shoulder portion is 6 or less, and when the Dc value is 2.2 or less, the R value of the shoulder portion is 5 or less. In particular, when the Dc value is 2 to 1.4, it is preferable that the shoulder R value is 5 to 2.

Further, R4a of the leg is usually 4 to 8, regardless of the Dc value. Preferably, the R value of the shoulder portion in the present invention is equal to or smaller than the R value of the leg portion.

The Dc value and R value in the present invention are determined by exposing the color photosensitive material of the present invention to light wedge exposure using a three-color separation filter.
It is preferable to use a sample obtained by color development processing through predetermined practical processing steps. The specified Dc value and R value are characteristics possessed by color photosensitive materials, and in particular, a Dc value of 2.
When a color photosensitive material has an R value of 5 or less, a color print exhibiting an effect similar to this characteristic, that is, a visually high-quality print can be obtained by subjecting the material to practical processing steps. In the present invention, the Dc value and R value can be determined preferably by the following development treatment and density measurement.

Light wedge exposure is performed using a color separation filter selected according to the spectral sensitivity distribution of CL, ML and YL of the color photosensitive material, and development processing is performed through the next processing step 2. Furthermore, in the case of an image forming method using ultra-quick development processing in which the development time excluding drying time is within 90 seconds, the following processing step 1 is preferably used.

40'C 4 seconds rinse 2 40'C 4 seconds rinse 340'C 4 seconds drying 90'C 14 seconds on sand 0 ``ii Arashi-ichi'' Mi Aji-ichi'' ■Color development
Bleach fixing at 35°C for 45 seconds Rinse at 35°C for 45 seconds Rinse at 225°C for 30 seconds Rinse at 325°C for 30 seconds Placer drying at 80°C for 90 seconds Ethylenediamine-N, N, N'

N'-tetramethylenephosphonic acid N,N-di(carboxymethyl)hydrazine N,N-diethylhydroxyl oxalate triethanolamine sodium sulfite potassium chloride potassium bromide potassium carbonate N-ethyl-N-(β- Methanesulfonadoethyl)-3-methyl 4-aminoaniline sulfate N-ethyl-N-hydroxyethyl 3-methyl-4-aminoaniline sulfate 3.0g 4.5g 2.0g 8.5g 0, 14g 1 .6g 0.01g 25.0g 3.0g 1.4g WRITEX-4 (manufactured by Sumitomo Chemical) Add water and H Nammonium thiosulfate (55wt%) Sodium sulfite iron ethylenediaminetetraacetate (I[[) Add ammonium ethylenediaminetetraacetic acid disodium ammonium bromide glacial acetic acid water and adjust to 10.05 H 1,48 1000txtll 00 d 17.0g 55.0g 5.08 40.0g 9.0g 1000 d Adjust to 5.801 ] The sample obtained from broiled ion-exchanged water (less than 3 ppm of calcium ions, less than 1 m of magnesium ions, 2 PI) was subjected to X-R
Spectral product of status A (standard ANSr PH2, 19) using itefi degree meter (X-Rite 310TR model)
The density was measured according to the method, and characteristic surface lines corresponding to the obtained yellow, magenta and cyan coloring layers were obtained. The R value and Dc value are determined by the arc approximation method described above.

On the other hand, it is also possible to carry out computer simulation using the color photosensitive material according to the present invention and to estimate and evaluate the effect of changing the R value on image quality as desired.

That is, by changing the R value and, if necessary, the Dc value, psychological evaluation can be performed by drawing images using a computer and a laser drawing device without changing other characteristics.

As described above, in order to obtain a photosensitive material containing at least two photosensitive layers having a specific defined Dc value and a defined R value according to the present invention, the Dc value and the R value (especially the Dc value) are It is advantageous to reduce the total amount of silver halide used in silver halide emulsions to meet the requirements of the present invention, thereby speeding up processing and reducing production costs. In particular, in the present invention, the amount of silver halide used in the yellow coupler-containing silver halide photosensitive layer (YL) is 0.24 g/rrf or less as a silver equivalent coating amount,
Preferably 0.22g#d or less, more preferably 0.18g/
rd or less, and similarly 0.24 g for the magenta coupler-containing silver halide photosensitive layer (ML).
/nf or less, preferably 0.22g/rd or less, particularly preferably 0.22g/nf or less, particularly preferably used in conjunction with a 2-equivalent magenta coupler.
14 g/n (preferably less than 0.20 for cyan coupler-containing silver halide photosensitive layer (CL))
g/nf or less, preferably 0.19 g/nf or less, more preferably 0.16 g/nf or less, the total amount of silver halide used is similarly 0, 70 g/n or less, preferably 0
．． It is preferably 64 g/bo or less, more preferably 0.
60 to 0.40 g/rd.

In the color photosensitive material for printing according to the present invention, D
Lower the c value to 2.5 or less and increase the R value of shoulder gradation to 6.5
In order to achieve the following, it is useful to use at least one of the following means in combination.

First, as a silver halide emulsion according to the present invention (particularly a low-sensitivity silver halide emulsion when there are at least two types of emulsions with different sensitivities in one photosensitive layer), the development start time of silver halide grains is The purpose is to use a uniform silver halide emulsion. It is preferable that the development of 80% or more of the total weight of silver halide grains contained in the silver halide emulsion is started during the initial 1/60 hour or 5 seconds of the color development time. Further, it is preferable to use a silver halide emulsion in which 95% or more of the total weight of silver halide grains contained in the silver halide emulsion are developed at the end of the color development step.

Color development of grains in silver halide emulsions.Measurement of development-initiated grains at the beginning of the development time is described, for example, in EP-0273.
As described in No. 429 and UP-0273430, the exposure amount for the q point of the characteristic curve of a predetermined photosensitive layer (obtained by color Mn light and practical development processing) is used to obtain a predetermined value. Immediately after color development, the color development is stopped using an aqueous glacial acetic acid solution, and particles containing a development start point of a predetermined photosensitive layer are observed using an electron microscope.

More precisely, a sample of a photosensitive material is obtained by coating it on another support according to a recipe containing the silver halide emulsion corresponding to a predetermined photosensitive layer. This sample is processed using a practical color development processing process to obtain a characteristic curve, and based on this characteristic curve, the particles that have started development at a predetermined color development time are observed by the method described above.

The number of particles is preferably at least 200, for example 2
00 to 60 (l) should be observed. From this value, the total weight ratio of the particles at which development has started can be determined.

At the end of the color development step, the weight ratio of developed silver to silver halide grains contained in the silver halide emulsion used is:
After color development, undeveloped silver halide is fixed and removed, and the amount of developed silver present can be quantitatively measured.

Silver halide emulsions with uniform development start times of silver halide grains are disclosed in EP-0273429 and EP-027343.
Specification No. 0 and West German Published Patent Application (OLS) No. 38192
As described in No. 41AI, etc., a silver halide grain group (CDG) having a development start point at or near the apex of the grain, or a group of silver halide grains (EDG) having a development start point at or near the edge of the grain. Preference is given to using silver halide emulsions.

Second, a silver halide emulsion having a monodispersed silver halide grain size is used. Here, the monodisperse silver halide emulsion refers to one in which the ratio of standard deviation of grain size to average grain size: coefficient of variation is 0.20 or less, preferably 0.12 or less.

Thirdly, a 2-equivalent coupler is used in the silver halide emulsion layer. In particular, the general formula (M-1) described below
and 2-equivalent magenta couplers represented by (M-It) and 2 equivalents represented by general formulas (C-1) and (C-1)).
Preferably, equivalent cyan couplers are used.

By using at least one of the first to third means, preferably two or more means together with the above-mentioned means for reducing the amount of coated silver, the specific Dc value and shoulder R value of the present invention can be obtained. A color photosensitive material can be obtained. Furthermore, in addition to the above means, at least two types of silver halide emulsions having different sensitivities may be mixed in one photosensitive layer or two types of silver halide emulsions may be mixed in one photosensitive layer.
It is preferable to provide the layers separately.

Further, if the film chamber of the protective colloid film provided on the support is thin, it is advantageous not only to speed up the progress of development but also to reduce the R value. The thickness is preferably 10μ or less, more preferably 8μ or less. For this, the amount of gelatin used is N! It is better to do so. It is particularly effective to reduce the weight of layers farther from the support.

The color photographic light-sensitive material of the present invention can be constructed by coating at least one blue-sensitive silver halide emulsion layer, one green-sensitive silver halide emulsion layer, and one red-sensitive silver halide emulsion layer on a support. . In general color photographic paper, the layers are usually coated on the support in the order listed above, but they may be coated in a different order. It can be used in place of at least one of the emulsion layers described above. These photosensitive emulsion layers include
Subtractive color reproduction can be performed by incorporating so-called color couplers that form yellow, magenta, and cyan, respectively.

The silver halide emulsion used in the present invention is one consisting of silver chlorobromide, preferably silver chloride, which does not substantially contain silver iodide. Here, "substantially free of silver iodide" means that the silver iodide content is 1 mol% or less, preferably 0.2 mol% or less, and the halogen content of the emulsion is different between grains. However, if an emulsion having the same halogen composition among the grains is used, it is easy to make the properties of each grain uniform. In addition, regarding the halogen composition distribution inside the silver halide emulsion grains, there are grains with a so-called uniform structure in which the Mi strength is equal in any part of the silver halide grains, and grains with a core inside the silver halide grains and the core surrounding it. Particles with a so-called layered structure in which the halogen composition differs between the shell (-layer or multiple layers), or structures that have a non-layered portion with a different halogen composition inside or on the particle surface (if it is on the surface of the particle, Particles having a localized phase with a structure in which parts of different compositions are joined on edges, corners, or surfaces can be appropriately selected and used. In order to obtain high sensitivity, it is more advantageous to use one of the latter than particles with a uniform structure, and it is also preferable from the viewpoint of pressure resistance. When silver halide grains have the above-mentioned structure, even if the boundaries between localized phases that differ in halogen composition are clear boundaries, the differences in composition create mixed crystals that form unclear boundaries. It may be a boundary, or it may be one that actively has a continuous structural change.

Regarding the halogen composition of these silver chlorobromide emulsions, any silver bromide/chloride ratio can be used. This ratio can vary widely depending on the purpose.

Further, a so-called high silver chloride emulsion having a high silver chloride content is preferably used in the color light-sensitive material of the present invention, which is advantageous in achieving an R value of 6.5 or less. The silver chloride content of these high silver chloride emulsions is preferably 90 mol% or more, more preferably 95 mol% or more.

Such a high silver chloride emulsion preferably has a structure in which the localized silver bromide phase is present inside and/or on the surface of the silver halide grains in a layered or non-layered manner as described above.The halogen composition of the localized phase is The silver bromide content is preferably at least 10 mol%, more preferably more than 20 mol%. These localized phases can be located inside the grain, or on the edges, corners, or surfaces of the grain surface, but one preferred example is one that is epitaxially grown on a part of the corner of the grain.

On the other hand, in order to minimize the decrease in sensitivity when a photosensitive material is subjected to pressure, even in high silver chloride emulsions with a silver chloride content of 90 mol% or more, grains with a uniform structure with a small distribution of halogen composition within the grains are used. It is also preferable to use

Furthermore, it is also effective to further increase the silver chloride content of the silver halide emulsion for the purpose of reducing the amount of replenishment of the development processing solution.

In such cases, the silver chloride content is 98 mol% to 10
Emulsions of almost pure silver chloride, such as 0 mol %, are also preferably used.

Average grain size of the silver halide grains contained in the silver halide emulsion used in the present invention (the grain size is defined as the diameter of a circle equivalent to the projected area of the grain, and the number average thereof is taken)
is preferably 0.1μ to 2−.

In addition, as described above, the particle size distribution of these particles has a coefficient of variation (standard deviation of particle size distribution divided by average particle size) of 20% or less, preferably 15% or less, and more preferably 12% or less. A dispersed emulsion is preferred. In this case, in order to obtain a wide latitude, it is preferable to blend the above-mentioned monodispersed emulsions in the same layer, or to apply multilayer coating.

The shape of silver halide grains contained in photographic emulsions is regular (cubic, tetradecahedral, or octahedral).
lar) those with crystal shapes, those with irregular crystal shapes such as spherical, plate-like, etc.
Alternatively, a composite form of these can be used. Moreover, it may be made of a mixture of crystals having various crystal forms. In the present invention, among these particles, it is preferable to contain particles having the above-mentioned regular crystal shape in an amount of 50% or more, preferably 70% or more, and more preferably 90% or more.

In addition to these, the average aspect ratio (yen equivalent diameter/
Emulsions in which the projected area of tabular grains having a thickness of 5 or more, preferably 8 or more, exceeds 50% of the total grains can also be preferably used.

The silver chlorobromide emulsion used in the present invention is P, Glafkid
Written by es Chisie et Ph1sique
Photographique (PaulMon
te I, 1967), G., F., Duf.
Photo-graphic Emulsio by fin
n Chemistry (Focal Press, 1966), V, L, ZeJik+ian
Makfng and Coating by et al.
Photographic Emulsion (Fo
Cal Press, 1964). That is, any of the acidic method, neutral method, ammonia method, etc. may be used, and the method for reacting the soluble root salt with the soluble halogen salt may be any method such as one-sided mixing method, simultaneous mixing method, or a combination thereof. May be used. A method in which particles are formed in an atmosphere containing excess silver ions (so-called back mixing method) can also be used. As one type of simultaneous mixing method, a method in which the pAg in the liquid phase in which silver halide is produced can be kept constant, that is, the so-called Chondrald double jet method can also be used. According to this method, a silver halide emulsion having a regular crystal shape and a nearly uniform grain size can be obtained.

Various polyvalent metal ion impurities can be introduced into the silver halide emulsion used in the present invention during the emulsion grain formation or physical ripening process.

Examples of compounds used include cadmium, zinc, lead,
Salts such as copper and thallium, or iron, which is a group II element,
Examples include salts or complex salts of ruthenium, rhodium, palladium, osmium, iridium, platinum, and the like. In particular, the above-mentioned Group Ⅰ elements can be preferably used. The amount of these compounds added varies over a wide range depending on the purpose, but is preferably from 10@-9 to 10@-2 mol relative to silver halide.

The silver halide emulsion used in the present invention is usually subjected to chemical sensitization and spectral sensitization.

Regarding chemical sensitization methods, sulfur sensitization represented by the addition of unstable sulfur compounds, noble metal sensitization represented by gold sensitization, or reduction sensitization can be used alone or in combination. As for the compounds used for sensitization, those described in the lower right column on page 18 to the upper right column on page 22 of JP-A No. 62-215272 are preferably used.

Spectral sensitization is carried out for the purpose of imparting spectral sensitivity in a desired light wavelength range to the emulsion of each layer in the light-sensitive material of the present invention. In the present invention, it is preferable to add a dye-spectral sensitizing dye that absorbs light in a wavelength range corresponding to the desired spectral sensitivity. Spectral sensitizing dyes used at this time include, for example, Hete by F. M. Hammer.
rocyclic compounds-Cyanin
e dies and related co.
mpounds (John Wiley & 5on
Published by S (New York, London), 19
Examples include those described in 1964).

Examples of specific compounds include the above-mentioned Japanese Patent Application Laid-Open No. 62-21527.
Those described in the upper right column of page 22 to page 38 of the specification of Publication No. 2 are preferably used.

The silver halide emulsion used in the present invention has the following properties:
Alternatively, various compounds or their precursors can be added for the purpose of stabilizing photographic performance. As specific examples of these compounds, those described on pages 39 to 72 of the specification of JP-A-62-215272 mentioned above are preferably used.

The emulsion used in the present invention may be either a so-called surface latent image type emulsion in which a latent image is mainly formed on the grain surface or a so-called internal latent image type emulsion in which a latent image is mainly formed inside the grain. Also good.

In the color light-sensitive material of the present invention, a yellow coupler, a magenta coupler and a cyan coupler, which develop yellow, magenta and cyan colors, respectively, by coupling with an oxidized product of an aromatic amine color developer are usually used.

As mentioned above, a color coupler used together with the silver halide emulsion can be cited as a useful means in the present invention. 2-equivalent couplers are preferred, and in particular, 2-equivalent magenta couplers represented by the following general formulas (M-1) and (MU) are more preferable than 4-equivalent magenta couplers,
Shoulder R value of 6.5 for low silver halide usage
Good for obtaining the following small values, especially - Monka (M-II
The magenta coupler represented by ) is advantageous because the molecular extinction coefficient of its coloring dye is high at 530 to 560 nm.

Useful in the present invention are color couplers that have a high coupling activity with the oxidized product of an aromatic primary amine color developing agent and a high production efficiency of a color dye from the coupling product with the coupler. The couplers shown in are particularly useful.

Cyan couplers, magenta couplers, and yellow couplers preferably used in the present invention are as follows: (C-1), (C-1)), (M-1), (M-II
) and (Y).

General formula (C-1) H General formula CM-1)) General formula (Y) t General formula (C-1)) H Y! General formula (M-1) In general formulas (C-1) and (C-1)), Rls
Rz and R1 represent a substituted or unsubstituted aliphatic, aromatic or heterocyclic group, R1, R2 and R4 represent a hydrogen atom, halogen atom, aliphatic group, aromatic group or acylamino group, R3 together with R3 It may also represent a group of nonmetallic atoms forming a nitrogen-containing 5- or 6-membered ring. y
,, y represents a hydrogen atom or a group that can be separated during a coupling reaction with an oxidized form of a developing agent, and n represents 0 or 1.

R3 in general formula (C-II) is preferably an aliphatic group, such as methyl group, ethyl group, propyl group, butyl group, pentadecyl group, tert-butyl group, cyclohexyl group, cyclohexylmethyl group, phenyl group. Examples include thiomethyl group, dodecyloxyphenylthiomethyl group, butanamidomethyl group, and methoxymethyl group.

Preferred examples of the cyan coupler represented by (C-1) or (C-If) are as follows.

In general formula (C-1), preferable R is an aryl group,
A heterocyclic group, such as a halogen atom, an alkyl group, an alkoxy group, an aryloxy group, an acylamino group, an acyl group,
More preferably, it is an aryl group substituted with a carbamoyl group, a sulfonamide group, a sulfamoyl group, a sulfonyl group, a sulfamide group, an oxycarbonyl group, or a cyano group.

- When R3 and R2 do not form a ring in the pattern hole (C-1), R1 is preferably a substituted or unsubstituted alkyl group or aryl group, particularly preferably a substituted aryloxy-substituted alkyl group, and R1 is preferably a hydrogen atom.

In general formula (cn), R4 is preferably a substituted or unsubstituted alkyl group or aryl group, and particularly preferably a substituted aryloxy-substituted alkyl group.

In general formula (C-1)), R5 preferably has 2 to 2 carbon atoms.
It is a methyl group having 15 alkyl groups and a substituent having 1 or more carbon atoms, and the substituent is preferably an arylthio group, an alkylthio group, an acylamino group, an aryloxy group, or an alkyloxy group.

- In the pattern hole (C-1)), R1 is more preferably an alkyl group having 2 to 15 carbon atoms, particularly preferably an alkyl group having 2 to 4 carbon atoms.

-a formula (C-1)), preferred R6 is a hydrogen atom,
A halogen atom, with chlorine and fluorine atoms being particularly preferred. - Preferred vI and Y2 in C-1 and (C-ff) are a hydrogen atom, a halogen atom, an alkoxy group, an aryloxy group, an acyloxy group, and a sulfonado group, respectively.

In general formula (M-1), R1 and R9 represent an aryl group, R8 represents a hydrogen atom, an aliphatic or aromatic acyl group, an aliphatic or aromatic sulfonyl group,
Y3 represents a hydrogen atom or a leaving group.

Aryl group (preferably phenyl group) of R1 and R1
The substituents allowed for are the same as the substituents allowed for substituent R1, and when there are two or more substituents, they may be the same or different. R3 is preferably a hydrogen atom, an aliphatic acyl group or a sulfonyl group, particularly preferably a hydrogen atom.

Preferred Y is of the type that leaves off with either sulfur, oxygen or nitrogen atoms, for example as described in U.S. Pat.
Particularly preferred are sulfur atom dissociative types such as those described in No. 51,897 and International Publication No. W08B104795.

In the general formula (M-I[), R1° represents a hydrogen atom or a substituent. Y4 represents a hydrogen atom or a leaving group, and is particularly preferably a halogen atom or an arylthio group. Za,
Zb and Zc are methine, substituted methine, :N- or -N
It represents H-, one of the Za-Zb bond and the Zb-Zc bond is a double bond, and the other is a single bond.

The case where the Zb-Zc bond is a carbon-carbon double bond includes the case where it is a part of an aromatic ring. R1) This includes the case where 1 or Y4 forms a dimer or more multimer, and when Za, zb or Zc is a substituted methine, the case where the substituted methine forms a dimer or more multimer.

Among the pyrazoloazole couplers represented by the general formula (M-II), U.S. Pat.

The Igodashi (1,2-b) pyrazoles described in U.S. Pat. Riazole is particularly preferred.

In addition, a branched alkyl group as described in JP-A No. 61-65245 is directly connected to the 2.3 or 6-position of the pyrazolotriazole ring to create a pyrazolotriazole coupler, which is described in JP-A No. 61-65246. Pyrazoloazole couplers containing a sulfonado group in the molecule, pyrazoloazole couplers having a unique alkoxyphenylsulfonamide ballast group described in JP-A-61-147254, and European Patent (Publication) No. 226, It is preferred to use pyrazolotriazole couplers having an alkoxy group or an aryloxy group at the 6-position as described in No. 849, No. 294, and No. 785.

In general formula (Y), R8 represents a halogen atom, an alkoxy group, a trifluoromethyl group or an aryl group,
RIz represents a hydrogen atom, a halogen atom or an alkoxy group. A is -NHCOR+i, -NH3Oz-RIz,
-3O□NIIR+ 3, -COOR+ 3, -S
O□N-R,.

Represents I4. However, R+3 and RI4 each represent an alkyl group, an aryl group, or an acyl group, YS represents a leaving group, and substituents for R1□, RI3, and RI4 include R
are the same as the substituents allowed for 1, leaving Xys
is preferably a type in which either an oxygen atom or a nitrogen atom is eliminated, and a nitrogen atom elimination type is particularly preferred.

General formula (C-1), (C-It), (M-1), (M-
Specific examples of couplers represented by 1)) and (Y) are listed below.

(C 1) (C-4) H (C-9) Teacher (C-10) (C 12) l (C-7) (C-14) (C-15) (C-17) (C 18) (C 19) ■ Shi 2 (M 1) I Ji (M 2) I Shi (M 3) t (C-20) (C 21) (C-22) (M-4) (M-6) υshi ■3 Shil L (M 7) (M 8) H3 Shil 1) 3 (Y-1) (Y 2) (Y 5) (Y 6) (Y-3) 1) (Y 4) ( Y 7) (Y 8) (Y-9) The couplers represented by the above - pattern holes (C-1) to (Y) are:
In the silver halide emulsion layer forming the photosensitive layer at the bottom of the bath, usually 0.1 to 1.0 mol per mol of silver halide, preferably 0.
．． It is contained in an amount of 1 to 0.5 mol.

In the present invention, various known techniques can be applied to add the coupler to the photosensitive layer. Usually, it can be added by the oil-in-water dispersion method known as the oil protection method, and after being dissolved in a solvent, it is emulsified and dispersed in an aqueous gelatin solution containing a surfactant. Alternatively, water or an aqueous gelatin solution may be added to a coupler solution containing a surfactant to form an oil-in-water droplet dispersion with phase inversion.

Alkali-soluble couplers can also be dispersed by the so-called Fischer dispersion method. From the coupler dispersion,
The low-boiling organic solvent may be removed by distillation, noodle washing, ultrafiltration, or the like, and then mixed with the photographic emulsion.

As a dispersion medium for such couplers, the dielectric constant (25°C
) 2 to 20, and a high boiling point organic solvent and/or water-insoluble polymer compound having a refractive index (25° C.) of 1.5 to 1.7 is preferably used.

As the high boiling point 81 solvent, preferably the following general formula (A)
A high boiling point organic solvent represented by ~(E) is used.

General formula (A) W, -0-P=0 3 General formula (B) H,-COO-W2 General formula (E) h, -o-ti.

(In the formula, W, W2 and - each represent a substituted or unsubstituted alkyl group, cycloalkyl group, alkenyl group, aryl group or heterocyclic group, -1 is -1, o
n or S-1, where n is an integer from 1 to 5, and when n is 2 or more, OLD may be the same or different from each other; may form a fused ring).

The high boiling point organic solvent that can be used in the present invention also has a melting point of 100"C or less and a boiling point of 140"
It can be used as long as it is a compound that is immiscible with water and has a temperature of C or higher and is a good solvent for the coupler.The melting point of the high-boiling organic solvent is preferably 80'C or less.The boiling point of the high-boiling organic solvent is preferably 160'C or less. ″C or more, more preferably 170°
C or higher.

For details of these high boiling point solvents, please refer to JP-A-62
-215272 Publication Specification, page 137, lower right column ~ 14
It is written in the upper right column of page 4.

Additionally, these couplers can be combined with rhodapul latex polymers (
For example, it can be emulsified and dispersed in an aqueous hydrophilic colloid solution by impregnating it with a polymer (for example, US Pat. No. 4,203,716) or by dissolving it in a water-insoluble but organic solvent-soluble polymer.

Preferably, the homopolymers or copolymers described on pages 12 to 30 of International Publication No. W088100723 are used, and acrylamide-based polymers are particularly preferred from the viewpoint of color image stabilization.

The light-sensitive material produced using the present invention may contain a hydroquinone derivative, an aminophenol derivative, a gallic acid derivative, an ascorbic acid derivative, etc. as a color antifoggant.

Various anti-fading agents can be used in the photosensitive material of the present invention. That is, hydroquinones, 6
-Hydroxychromans, 5-hydroxycoumarans,
Spirochromans, p-alkoxyphenols, hindered phenols centered on bisphenols, gallic acid derivatives, methylenedioxybenzenes, aminophenols, hindered amines, and silylation and alkylation of the phenolic hydroxyl groups of these compounds. Typical examples include ether or ester derivatives. Further, metal complexes such as (bissalicylaldoximado)nickel complex and (bis-N,N-dialkyldithiocarbamado)nickel complex can also be used.

Specific examples of organic antifade agents are described in the following patent specifications:

Hydroquinones are U.S. Patent No. 2.360.290,
2,418.613, 2,700,453, 2.701.197, 2,728.659
No. 2.732,300, No. 2.735,76
No. 5, No. 3,982.944, No. 4,430.4
25, British Patent No. 1,363.921, U.S. Patent No. 2,710.801, U.S. Patent No. 2,816,028, etc. U.S. Patent No. 3,432,30
No. 0, No. 3,573,050, No. 3.574,6
No. 27, No. 3,698°909, No. 3.764.
No. 337, JP-A-52-152225, etc., and spiroindanes are described in U.S. Pat. No. 4,360,589, p-
Alkoxyphenols are covered by U.S. Patent No. 2.735.76.
No. 5, British Patent No. 2.066.975, Japanese Unexamined Patent Publication No. 1983-
No. 10539, Japanese Patent Publication No. 57-19765, etc., and hindered phenols are disclosed in U.S. Pat.
, No. 235, and Japanese Patent Publication No. 52-6623, and gallic acid derivatives, methylenedioxybenzenes, and aminophenols are disclosed in U.S. Pat. -21) Hindered amines are disclosed in U.S. Patent No. 3.336.13, etc.
No. 5, No. 4,268.593, British Patent No. 1.32
6.889, 1.354.313, 1.4
No. 10.846, Japanese Patent Publication No. 51-1420, Japanese Patent Publication No. 1983
-1) No. 4036, No. 59-53846, No. 59
-78344 etc., metal complexes are disclosed in U.S. Patent No. 4,05
No. 0,938, British Patent No. 4,241°155, and British Patent No. 2,027,731 (A). The purpose of these compounds can be achieved by co-emulsifying them with the couplers and adding them to the photosensitive layer, usually in an amount of 5 to 100% by weight based on the corresponding color coupler. In order to prevent the cyan dye image from deteriorating due to heat and especially light, it is more effective to introduce an ultraviolet absorber into the cyan coloring layer and the layers on both sides adjacent thereto.

As ultraviolet absorbers, benzotriazole compounds substituted with aryl groups (for example, U.S. Pat. No. 3,533,7
94), 4-thiazolidone compounds (e.g., U.S. Pat. No. 3,314,794, U.S. Pat. No. 3,352.
681), benzophenone compounds (e.g., those described in JP-A No. 46-2784), cinnamic acid ester compounds (e.g., those described in U.S. Pat. ), butadiene compounds (as described in U.S. Pat. No. 4,045,229), or benzoxidole compounds (for example, as described in U.S. Pat. No. 3,406,070, U.S. Pat. 271.307) can be used. An ultraviolet absorbing coupler (for example, an α-naphthol cyan dye-forming coupler) or an ultraviolet absorbing polymer may be used. These ultraviolet absorbers may be mordanted in specific layers.

Among these, benzotriazole compounds substituted with the aforementioned aryl group are preferred.

In addition to the above-mentioned couplers, it is particularly preferable to use the following compounds. Particularly preferred is the combination with a pyrazoloazole coupler.

That is, a compound (F) that chemically bonds with the aromatic amine developing agent remaining after color development processing to produce a chemically inert and substantially colorless compound and/or an aroma remaining after color development processing. For example, in storage after processing, the compound (G) that chemically bonds with the oxidized form of a group amine color developing agent to produce a chemically inert and substantially colorless compound may be used simultaneously or singly. This is preferable in order to prevent staining and other side effects caused by the formation of coloring dyes due to the reaction between the color developing agent or its oxidized product remaining in the film and the coupler.

The preferred compound (F) has a second-order reaction rate constant with p-anisidine! (in trioctyl phosphate at 80″C) is 1.O!!, /lll01-8eC-
It is a compound that reacts in the range of 1×1 O-sl/mol-sec.

Incidentally, the second-order reaction rate constant can be measured by the method described in JP-A-63-158545.

When R2 is larger than this range, the compound itself becomes unstable and may react with gelatin or water and decompose. On the other hand, if R2 is smaller than this range, the reaction with the remaining aromatic amine developing agent will be slow, and as a result, side effects of the remaining aromatic amine developing agent may not be prevented.

A more preferable compound (F) can be represented by the following symbol (FI) or (Fn).

General formula (Fl) R, -(A), -X General formula (FII) Rffi-C=Y In the formula, R,, R, each represent an aliphatic group, an aromatic group, or a heterocyclic group . n represents 1 or O.

A represents a group that reacts with the aromatic amine developer to form a chemical bond, and X represents a group that reacts with the aromatic amine developer and leaves. B represents a hydrogen atom, an aliphatic group, an aromatic group, a heterocyclic group, an acyl group, or a sulfonyl group,
Y represents a group that promotes addition of an aromatic amine developing agent to the compound of general formula (FII). Here R3
and X, Y, and R2 or B may be bonded to each other to form a cyclic structure.

Among the methods of chemically bonding with the residual aromatic amine developing agent, the typical ones are substitution reaction and addition reaction.

For specific examples of compounds represented by general formulas (Fl) and (FII), see JP-A-63-158545 and JP-A-62-
283338, European Patent Publication No. 298321, European Patent Publication No. 27
Those described in specifications such as No. 7589 are preferred.

On the other hand, more preferable compounds (G) that chemically bond with the oxidized aromatic amine developing agent remaining after color development processing to produce a chemically inert and colorless compound are listed below - Monana ( Gl).

General formula (CI) -Z In the formula, R represents an aliphatic group, an aromatic group or a heterocyclic group. Z represents a nucleophilic group or a group that decomposes in the photosensitive material to release a nucleophilic group. - Compounds represented by Gl are Z = Pearson's nucleophilicity 'C1)ll value (R, G, Pearson, et al., J,
Hem.

Chew, Soc, 90.319 (196B)
) is preferably 5 or more, or a group derived therefrom.

- For specific examples of compounds represented by Gl, see European Patent Publication No. 255722, JP-A-62-1430.
No. 48, No. 62-229145, patent application No. 63-136
No. 724, No. 621) No. 4681, European Patent Publication No. 298
Those described in No. 321, No. 277589, etc. are preferred.

Further, details of the combination of the above-mentioned compound (G) and compound (F) are described in European Patent Publication No. 277589.

The photosensitive material produced using the present invention contains a water-soluble dye or a dye that becomes water-soluble through photographic processing as a filter dye in the hydrophilic colloid layer or for various purposes such as preventing irradiation or halation. You can leave it there. Such dyes include oxonol dyes, hemioxonol dyes, styryl dyes, merocyanine dyes, cyanine dyes and azo dyes. Among them, oxonol dyes, hemioxonol dyes and merocyanine dyes are useful.

As the binder or protective colloid that can be used in the emulsion layer of the light-sensitive material of the present invention, it is advantageous to use gelatin, but other hydrophilic colloids can be used alone or together with gelatin.

In the present invention, the gelatin may be either lime-treated or acid-treated. Details of the method for producing gelatin are described in The Macromolecular Chemistry of Gelatin, written by Arthur Vuis (Academic Press, published in 1964).

As the support used in the present invention, transparent films such as cellulose nitrate film and polyethylene terephthalate, which are usually used in photographic light-sensitive materials, and reflective supports can be used. For the purpose of the present invention, reflective supports are used. is more preferable.

The "reflective support" used in the present invention is one that enhances the reflectivity and makes the dye image formed in the silver halide emulsion layer clearer. Includes those coated with a hydrophobic resin containing a dispersed light-reflecting substance such as titanium oxide, zinc oxide, calcium carbonate, and calcium sulfate, and those using a hydrophobic resin containing a dispersed light-reflecting substance as a support. For example, baryta paper, polyethylene-coated paper, polypropylene synthetic paper, transparent supports with a reflective layer or a reflective material, such as glass plates, polyester films such as polyethylene terephthalate, cellulose triacetate or cellulose nitrate, polyamide film, polycarbonate film,
Examples include polystyrene film and vinyl chloride resin.

As other reflective supports, supports having a specular reflective or second type diffuse reflective metal surface can be used. The metal surface has a spectral reflectance of 0.5 in the visible wavelength range.
The above is preferable, and it is also preferable to roughen the metal surface or use metal powder to make it diffusely reflective.The metal should be aluminum, tin, silver, magnesium, or an alloy thereof, and the surface should be rolled. It may be the surface of a metal plate, metal foil, or thin metal layer obtained by , vapor deposition, plating, or the like.

Among these, it is preferable to obtain the metal by vapor-depositing it on another substrate.It is preferable to provide a layer of water-resistant resin, especially a thermoplastic resin, on the metal surface. It is preferable to provide an antistatic layer on the opposite side. For details of such a support, see, for example, JP-A-61-210
No. 346, No. 63-24247, No. 63-24251
No. 63-24255, etc.

These supports can be appropriately selected depending on the purpose of use.

As a light-reflecting substance, it is best to thoroughly knead a white pigment in the presence of a surfactant, and also coat the surface of the pigment particles with
It is preferable to use one treated with a tetrahydric alcohol.

The occupied area ratio (%) of white pigment fine particles per defined unit area is most typically the observed area of 61) m x 61! Occupied area ratio (%) of fine particles divided into unit areas of m and projected onto the unit areas (Ri)
It can be determined by measuring. The coefficient of variation of the occupied area ratio (%) can be determined by the ratio s/R of the standard deviation S of R to the average value (R) of R1. The number (n) of target unit areas is preferably 6 or more. Therefore, the coefficient of variation S/100 can be determined as follows.

In the present invention, the variation coefficient of the occupied area ratio (%) of pigment fine particles is preferably 0.15 or less, particularly 0.12 or less. If it is 0.08 or less, the dispersibility of the particles is substantially "uniform". It can be said that.

The color developing solution used in the development of the light-sensitive material of the present invention is preferably an alkaline aqueous solution containing an aromatic primary amine color developing agent as a main component. Aminophenol compounds are also useful as color developing agents, but p-phenylenediamine compounds are preferably used, representative examples of which include 3-methyl-4-anoN, N-diethylaniline, -methyl-4-amino-N-ethyl-N
-β-hydroxyethylaniline, 3-methyl-4-amino-N-ethyl-N-β-methanesulfonamidoethylaniline, 3-methyl-4-amino-N-ethyl-N
-β-methoxyethylaniline and their sulfates, hydrochlorides or P-)luenesulfonates.

Two or more of these compounds can be used in combination depending on the purpose.

The color developer may contain pH buffering agents such as alkali metal carbonates or phosphates, development inhibitors or antifoggants such as bromide salts, iodide salts, benzimidazoles, benzothiazoles or mercapto compounds. It is common to include In addition, if necessary, hydroxylamine, diethylhydroxylamine, sulfite, N, N
- hydrazines such as biscarboxymethylhydrazine, phenylsemicarbazides, triethanolamine,
Various preservatives such as catechol sulfonic acids, organic solvents such as ethylene glycol and diethylene glycol, development accelerators such as benzyl alcohol, polyethylene glycol, quaternary ammonium salts, adamane, dye-forming couplers, competitive couplers 1- Auxiliary developing agents such as phenyl-3-virapritone, viscosity imparting agents, various calcinates such as aminopolycarboxylic acids, aminopolyphosphonic acids, alkylphosphonic acids, and phosphonocarboxylic acids,
For example, ethylenediaminetetraacetic acid, nitrilotriacetic acid, diethylenetriaminepentaacetic acid, cyclohexanediaminetetraacetic acid, hydroxyethyliminodiacetic acid, 1-hydroxyethylidene-1,1-diphosphonic acid, nitrilo-N,N
, N-1-limethylenephosphonic acid, ethylene thiamine-N,N,N'N'-tetramethylenephosphonic acid, ethylene glycol (0-hydroxyphenylacetic acid), and salts thereof can be cited as representative examples. can.

Further, when performing reversal processing, color development is usually performed after black and white development and reversal processing. This black and white developer contains known black and white developing agents such as dihydroxybenzenes such as hydroquinone, 3-pyrazolidones such as 1-phenyl-3-pyrazolidone, or aminophenols such as N-methyl-p-aminophenol, alone or Can be used in combination.

The pl+ of these color developing solutions and black and white developing solutions is 9 to 12.
It is common that The amount of replenishment of these developing solutions depends on the color photographic light-sensitive material to be processed, but it is generally less than 31 per square meter of light-sensitive material, and by reducing the bromide ion concentration in the replenisher,
It can also be set to 0d or less. When reducing the amount of replenishment, it is preferable to prevent evaporation of the liquid and air oxidation by reducing the area of contact with the air in the processing tank. The contact area between the photographic processing solution and air in the processing tank can be expressed by the aperture ratio defined below. That is, the aperture ratio - contact area of the processing liquid and air (cm'')/volume of the processing liquid 1 (cm') The above aperture ratio is preferably 0.1 or less, more preferably 0.001 to 0. It is .05.

As a method for reducing the aperture ratio in this way, in addition to providing a shield such as a floating lid on the surface of the photographic processing solution in the processing tank, methods using a movable lid as described in Japanese Patent Application No. 62-241342, Examples include the slit development method described in Japanese Patent No. 63-216050.

It is preferable to reduce the aperture ratio not only in both color development and black-and-white development, but also in all subsequent steps, such as bleaching, bleach-fixing, fixing, washing, and stabilization.

Furthermore, the amount of replenishment can be reduced by using means for suppressing the accumulation of bromide ions in the developer.

The time for color development processing is usually set between 2 and 5 minutes, but the processing time can be further shortened by using high temperature, high pH, and high concentration of color developing agent.

After color development, the photographic emulsion layer is usually bleached.

The bleaching process may be carried out simultaneously with the fixing process (bleach-fixing process) or separately (bleach-fixing process), or in order to speed up the process, it may be carried out in two ways: bleach-fixing process after bleaching process. Depending on the purpose, treatment may be carried out in consecutive bleach-fixing baths, fixing treatment before bleach-fixing treatment, or bleaching treatment after bleach-fixing treatment. As the bleaching agent, for example, a compound of a polyvalent metal such as iron (III) is used. Typical bleaching agents include complex salts of iron (DI), such as ethylenediaminetetraacetic acid,
Iron aminopolycarboxylic acids such as diethylenetriaminepentaacetic acid, cyclohexanediaminetetraacetic acid, methyliminodiacetic acid, 1,3-diaminopropanetetraacetic acid, glycol etherdiaminetetraacetic acid, or complex salts such as citric acid, tartaric acid, and malic acid can be used. can. Among these, aminopolycarboxylic acid iron(m)if salts including ethylenecyaminetetraacetic acid iron(III) complex salts are preferred from the viewpoint of rapid processing and prevention of environmental pollution. Furthermore, aminopolycarboxylic acid iron(II[) complex salts are particularly useful in both bleach and bleach-fix solutions. The pH of the bleaching solution or bleach-fixing solution using these aminopolycarboxylic acid iron (III) complex salts is usually 4.0 to 8.0, but in order to speed up the processing, the pH may be lowered. You can also do it.

A bleach accelerator may be used in the bleaching solution, bleach-fixing solution, and their prebaths, if necessary.

Specific examples of useful bleach accelerators are described in U.S. Pat. No. 3,893,858, German Pat.
．． No. 290,812, JP-A-53-95630, Research Disclosure N1) No. 17,129 (19
Compounds having a mercapto group or disulfide bond as described in Jpn. Pat.
Thiourea derivatives described in No. 561; JP-A-58-162
Iodide salt described in No. 35; West German Patent No. 2.748,43
Polyoxyethylene compounds described in No. 0; Japanese Patent Publication No. 1973
Boriagon compounds described in No.-8836; bromide ions, etc. can be used. Among these, compounds having a mercapto group or a disulfide group are preferred from the viewpoint of a large promoting effect, and in particular, compounds described in U.S. Pat. Compounds are preferred. Additionally, U.S. Patent No. 4,552
, 834 are also preferred. These bleach accelerators may be added to light-sensitive materials, and are particularly effective when bleach-fixing color light-sensitive materials for photography.

Examples of fixing agents include thiosulfates, thiocyanates, thioether compounds, thioureas, and large amounts of iodide salts, but thiosulfates are commonly used, with ammonium thiosulfate being the most widely used. Can be used for Preservatives for bleach-fix solutions include sulfites, bisulfites, and p-
) Sulfinic acids such as luenesulfinic acid or carbonyl bisulfite adducts are preferred.

The silver halide color photographic light-sensitive material of the present invention is generally subjected to water washing and/or stabilization steps after desilvering treatment.

The amount of water used in the washing process depends on the characteristics of the photosensitive material (for example, depending on the materials used such as couplers), the application, the temperature of the washing water, the number of washing tanks (number of stages), the replenishment method such as countercurrent or forward flow, and various other conditions. Can be set over a wide range. Among these, the relationship between the number of washing tanks and the amount of water in the multistage countercurrent method is
Urnalor the 5ociety or Mo
tion Picture and Te1e-vis
ion Engineers Vol. 64, p. 248~
253 (May 1955 issue).

According to the multi-stage countercurrent method described in the above-mentioned literature, the amount of water used for washing can be significantly reduced, but due to the increase in the residence time of water in the tank, bacteria will breed, and the generated suspended matter will adhere to the photosensitive material. In the processing of the color photosensitive material of the present invention, as a solution to such problems,
The method for reducing calcium ions and magnesium ions described in JP-A-62-288838 can be used very effectively. In addition, isothiazolone compounds and thiabendazoles described in JP-A No. 57-8542,
Chlorine-based disinfectants such as chlorinated sodium isocyanurate,
Others, such as benzotriazole, Hiroshi Horiguchi, Chemistry of Antibacterial and Antifungal (1986), Sankyo Publishing, Hygiene Technology Complete Edition, Microbial Sterilization, Disinfection, Antifungal Technology J (1982), Society of Industrial Engineers, Japan Antibacterial and Antifungal “Encyclopedia of Antibacterial and Antifungal Agents” edited by the Society of Mold Research (19
The fungicides described in 1986) can also be used.

The ρ1) of the washing water in the processing of the photosensitive material of the present invention is 4
-9, preferably 5-8. The washing water temperature and washing time can be set in various ways depending on the characteristics of the photosensitive material, its use, etc.
Generally, a range of 20 seconds to 10 minutes at 15 to 45°C, preferably 30 seconds to 5 minutes at 25 to 40°C is selected. Furthermore, the photosensitive material of the present invention can also be directly processed with a stabilizing solution instead of washing with water.

In such stabilization treatment, Japanese Patent Application Laid-Open No. 57-854
All known methods described in No. 3, No. 58-14834, and No. 60-220345 can be used.

Further, following the water washing treatment, a further stabilization treatment may be carried out, such as a stabilizing bath containing formalin and a surfactant, which is used as a final bath for color photosensitive materials for photography. .

Various chelating agents and antifungal agents can also be added to this stabilizing bath.

The overflow liquid from water washing and/or replenishment of the stabilizing liquid can be reused in other processes such as the desilvering process.

The silver halide color light-sensitive material of the present invention may contain a color developing agent for the purpose of simplifying and speeding up processing. In order to incorporate a color developing agent, it is preferable to use various precursors of the color developing agent. U.S. Patent No. 3.342.59
Indoaniline compounds described in No. 7, No. 3.342.
No. 599, Research Disclosure 14.850
Schiff base-type compounds described in No. 15.159 and aldol compounds described in No. 13.924, U.S. Patent No. 3
．． Metal complex described in No. 719,492, JP-A-53-13
Examples include urethane compounds described in No. 5628.

The silver halide color light-sensitive material of the present invention may optionally contain various 1-phenyl-3
- Typical compounds that may contain pyrazolidones are JP-A-56-64339, JP-A-57-144547,
and No. 58-1) No. 5438.

The various processing liquids used in the present invention are used at a temperature of 10°C to 50'C, and the standard temperature is usually 33°C to 38°C, but it is possible to use a higher temperature to accelerate the processing and shorten the processing time. Conversely, it is possible to improve the image quality and the stability of the processing solution by lowering the temperature.

In addition, West German Patent No. 2.226.7 due to the nodal line of the photosensitive material
70 or U.S. Pat. No. 3,674,499 using cobalt intensification or hydrogen peroxide intensification.

(Example) The invention is illustrated below by means of examples.

Example 1 Silver halide color photographic materials as shown in Table 1 were prepared. This sample was rated 1-5.

The silver halide emulsions shown below were used in each layer.

Emulsion for cyan coupler-containing layer: Add 30 g of lime-treated gelatin to 1000 Id of distilled water, dissolve at 40°C, adjust the pH to 3.8 with sulfuric acid,
5.5 g of sodium chloride and 0.02 g of N,N'-dimethylimidazolidine-2-1,000 ions were added and the temperature was raised to 52.
The temperature was increased to 5°C. 62.5 g of silver nitrate in 750 g of distilled water
A solution prepared by dissolving 21.5 g of sodium chloride in 500 d of distilled water was heated at 52.5°C for 40 min.
It was added to the above solution and mixed for a few minutes. Additionally, 62.5g of silver nitrate
A solution of 500% of distilled water and 21% of sodium chloride.
A solution obtained by dissolving 5 g in 300 d of distilled water was added and mixed at 52.5° C. over 20 minutes.

During this addition and mixing, l
Xl0-'' moles of iridium dipotassium hexachloride were added.

When the obtained emulsion was observed under an electron microscope, it was found to be about 0.
The emulsion was composed of cubic grains with an average side length of 46 mm and a coefficient of variation of grain size distribution of 0.09.

After demineralizing and washing this emulsion with water, a monodisperse silver bromide emulsion containing 0.2 g of nucleic acid and an average grain size of 0.05-mole (containing 1.2XIO-'mol of Ag) was prepared using silver halide. 1.0 mol% of triethylthiourea was added, chemically sensitized with about 2 Xl0-6 mol of triethylthiourea, 1 mol of Ag, compound (V-20) was added to 7X10-' mol of 1 mol of Ag, and compound (1-1 ) was added in an amount of 7X10-' mol 1 mol Ag, and compound (F-1) was added in an amount of 5X10-' mol 1 mol Ag, to prepare an emulsion.

Emulsion for magenta coupler-containing layer: Add 30 g of lime-treated gelatin to 1000 d of distilled water,
After dissolving at 40"C, 5.5g of sodium chloride and N,N
0.02 g of '-dimethylimidasilidine-2-dione was added and the temperature was raised to 50°C. silver nitrate 62.5
A solution obtained by dissolving 750 g of distilled water and 21 g of sodium chloride
．． A solution prepared by dissolving 5 g of distilled water at 500 °C was added to and mixed with the above solution for 40 minutes while maintaining the temperature at 50'C. Further, a solution in which 62.5 g of silver nitrate was dissolved in 500 d of distilled water and a solution in which 21.5 g of sodium chloride was dissolved in 300 IR of distilled water were added and mixed at 50° C. over 20 minutes.

During this addition and mixing, l
Xl0-' mol of iridium dipotassium hexachloride of 1 mol of Ag was added.

When the obtained emulsion was observed under an electron microscope, it was found to be about 0.
44j! The emulsion consisted of cubic grains with an average side length of m and a coefficient of variation of grain size distribution of 0.08.

After demineralizing and washing this emulsion with water, a monodisperse silver bromide emulsion (containing 2×10 −' mol of iridium dipotassium hexachloride 1 mol Ag) containing 0.2 g of nucleic acid and an average grain size of 0.05 μm was added with 0.5 g of silver halide. The equivalent of mol % was added, chemically sensitized with about 2.5 x 10-' mol 1 mol^g of triethylthiourea, and further compound (V-5) was added to 1.1 x 10-' mol 1
mol Ag, compound (1-1) 1.1 x 10-3 mol 1
An emulsion was prepared in which compound (F-1) was added in an amount of 5×10-'mol 1 mol^g.

Emulsion for yellow coupler-containing layer: Compound (V-40) and compound (V-41) were added in place of compound (V-5) to an emulsion prepared in the same manner as the emulsion for magenta coupler-containing layer described above. 1.
2 x 10-' mol 1 mol Ag and 0.2 x 1 O-
An emulsion was prepared with the only difference being that 4 moles of Ag and 1 mole of Ag were added and compound (F-1) was not added.

These samples are coated with compounds (
D-1), (D-2), (D-3), (D-4), (D
-5) and (D-6) at 0.016 g/po and 0
．． 006 g/bo, 0.008 g/bo, 0.013 g
7M, 0.018 g/bo and 0.022 g/bo.

Further, the following three types of compounds were used as a hardening agent for gelatin in a molar ratio of 3:2:1.

Na CHtNHCOCH*SO□CH=CHff1Ctlz
NHCOC1hSOzCfl=CI*0CIbSOtC
H=CHt CHtSOxCI=C)lx The compounds used in this example are as shown below (D-4
) 1) (D-2) (D-5) (Low 3) (D-6) (UHtJ4S03K (+; ■ Mushroom) aSUst' (Loaf) n (1-1) (S-4) C1l□C00CHtCllCJIq ( CH ri & CH X-4) (A-1) (X-2) (X-3) (P-1) (V-41) (V-5) (V-20) (V-40) (CHt) 5SOz- ( Hz) 5sOJN(C!1ls) 3Also, (C
-2) to (C-5), (M-5), (M-10), (Y
-3), (Y-9) and (Ylo) each indicate the number of the above compound example.

These samples 1 to 5 were given an emission wavelength of 670 nm and 750 nm.
m, 400 dpi through an optical wedge using a 810 n laser diode - pixel average exposure time 2 x l
O-? After giving a gray scanning exposure of 2 seconds, a color development process was carried out according to the following processing step 1.

Processed King Composite Soil and one-dish color development 50°C 9 seconds bleach fixing 50°C 9 seconds rinse 1 40°C 4 seconds rinse 2 40°C 4 seconds rinse 3 40°C 4 placer drying 90°C 14 seconds hair regrowth Ethylenediamine-N,N,N'N'-tetramethylenephosphonic acid N,N-di(carboxymethyl)hydrazine N,N-diethylhydroxylamine oxalate triethanolamine sodium sulfite potassium chloride potassium bromide potassium carbonate N- Ethyl-N-(β-methanesulfonamidoethyl)-3-methyl-4-aminoaniline sulfate N-ethyl-N-hydroxyethyl-3-methyl-4-aminoaniline sulfate WHITEX-4 (manufactured by Sumitomo Chemical) 3.0g 4.5g 2.0g 8.5g 0, 14g 1.6g 0.01g 25.0g 3.0g 1.4g 1.4g Add water and adjust to 1000 and dn 10.05. 4-layer ammonium thiosulfate (55nt%) 100d Sodium sulfite 17.0g Iron ethylenediaminetetraacetate (I[[) Ammonium 55.0g Disodium ethylenediaminetetraacetate 5.0g Ammonium bromide 40.0g Glacial acetic acid
9. add og water
Adjust to 1000 d"H5.80, sputum ion-exchanged water (calcium ion 3 ppm or less, magnesium ion 2 ppm or less). Also, for each sample exposed to light in the same manner as above, the above treatment step 1 was carried out as follows. Color development processing was performed according to processing step 2 modified as follows.

Processing 51 Benefits - Once Roofing - One plate Color development 35°C 45 seconds Bleach fixing 35°C 45 seconds Rinse 1 25°C 30 seconds Rinse 2 25°C 30 seconds Rinse 3 25'C 30 seconds Placer drying 80°C 90 seconds The cyan, magenta, and yellow densities of the sample through processing were measured using TCDfs manufactured by Fuji Photo Film Co., Ltd.
The results were shown in Table 2. The sensitivity is expressed relative to the sensitivity of each coloring layer of sample 1 as lOO, and the value of the maximum shoulder density Dc and the value of the radius of shoulder gradation curvature R are expressed according to the above definition.

Table 2 shows that the values of the maximum shoulder density Dc and the shoulder gradation radius R of sample 2.3 satisfy the requirements of the present invention in both processing step 1 and processing step 2. It was done. Moreover, sample 1 is a sample with a high Dc value,
Sample 4.5 had a low Dc value but a high R value, indicating that neither of them satisfied the requirements of the present invention.

Using these samples, an actual image was exposed by laser scanning, and after being developed in the above-mentioned processing steps 1 and 2,
Sensory evaluation was performed.

Although a good image was obtained for sample 1 in processing step 2,
In processing step 1, the R value was large, the gradation was soft, and a good image could not be obtained.

Sample 4 had a soft gradation in both processing steps 1 and 2, and the high-density areas on the image lacked sharpness, and a good image could not be obtained.

Sample 5 lacked tightness in high-density areas on the image in both processing steps 1 and 2, and a good image could not be obtained.

On the other hand, samples 2 and 3 yielded good images in both processing steps 1 and 2, with almost no loss of density in high-density areas and appropriate gradations.

Example 2 In sample 4 of Example 1, the emulsions used for the third layer, fifth layer, and seventh layer were each 1.2×10
Sample 6 was prepared by replacing the emulsion with rhodium trichloride Ag of -@mol 1 mol^g, 3.6 x 10-'' mol 1 mol^g, 9.8 x 10-'' mol 1 mol Ag, and 670
A laser diode scanning exposure of 750nm, 750n+w, 810nm was applied and the same processing steps 1 and 2 as in Example 1 were carried out.

Regarding this sample 6, in all treatments, the value of high density Dc and the value of shoulder gradation curvature radius R satisfied the requirements of the present invention, and in the sensory evaluation by image exposure similar to Example 1. It was also possible to form images with excellent color density, gradation, and rapid processability, demonstrating the superiority of the present invention.

Example 3 A multilayer color photographic paper having the layer structure shown below was prepared on a paper support coated with polyethylene on both sides. Sample 7 was prepared as a coating liquid as follows.

19.1 g of yellow coupler (HxY), 4.4 g of color image stabilizer (Cpd-1) and color image stabilizer (Cp
d-7) Add and dissolve 27.2 cc of ethyl acetate and 8.2 g of solvent (Solv-1) to 0.7 g, and dissolve this solution in 8 cc of 10% sodium dodecylbenzenesulfonate.
The mixture was emulsified and dispersed in 185 cc of a 10% aqueous gelatin solution. On the other hand, silver chlorobromide emulsion (cubic, average grain size 0.8
8. The coefficient of variation of the particle size distribution of a 3=7 mixture (silver molar ratio) of n and 0.70- is 0.08 and 0.
10. Each emulsion contains 21) 0.2 mol% of bromide locally on the grain surface) and the following blue-sensitive sensitizing dyes per mol of silver: 2.0 x 10-' for large-sized emulsions, respectively.
molar addition, and for small size emulsions, 2.
Sulfur sensitization was prepared after addition of 5×10 −′ moles.

The above emulsified dispersion and this emulsion were mixed and dissolved to prepare a first coating solution having the composition shown below.

Coating solutions for the second to seventh layers were also prepared in the same manner as the No.-N2 fabric solution. As the gelatin hardening agent for each layer, 1-oxy-3,5-dichloro-5-) riazine sodium salt was used.

The following spectral sensitizing dyes were used in each layer.

Blue-sensitive emulsion layers (2.0 X 10-' moles each for large-size emulsions and 2.5 X 10-' moles each for small-size emulsions per mole of silver halide); green-sensitive emulsion layers (2.0 X 10-' moles each for large-size emulsions; Per mole of halogenated SR, 4.0X10-' moles for large size emulsions and 5.0x10-' moles for small size emulsions.
6 x 10-' moles) and 1. For the red-sensitive emulsion layer, 2.6 x 10-3 moles of the following compound were added per mole of silver halide.

(Halogenation! 1) per mole, for large size emulsions? , 0XIO-' mol, and for small size emulsions 1.0 1 for small-sized emulsions, and for blue-sensitive emulsion layers, green-sensitive emulsion layers, and red-sensitive emulsion layers.
-(5-methylureidophenyl)-5-mercaptotetrazole per mole of each halogenated compound.
5X10-'mol, 7.7X10-'mol, 2.5X1
0-'mol was added.

In addition, for the blue-sensitive emulsion layer and the green-sensitive emulsion layer, 4-hydroxy-6-methyl-1,3,3a,,7-chitrazaindene was added per mole of silver halide, respectively, to lXl0-
'mol and 2X10-'mol were added.

The following dyes were added to the emulsion layer to prevent irradiation.

and (layer structure) The composition of each layer is shown below. The number is the coating amount (g/rr?)
represents. The silver halide emulsion represents the coated amount in terms of silver.

Support polyethylene laminate paper [The polyethylene on the first layer side contains a white pigment (Ti(h) and a blue dye (ulmarine)]) -th layer (blue-sensitive layer) The above-mentioned silver chlorobromide emulsion 0.30 gelatin 1. 86 Yellow coupler (ExY) 0.82 Color image stabilizer (Cpd-1) 0.19 Solvent (So!v-1) 0.35
Color image stabilizer (Cpd-7) 0.
06 Second layer (color mixing prevention layer) Gelatin 0.99 Color mixing prevention agent (Cpd-5) 0.08 Solvent (Solv-1) 0.1
6 solvent (Solv-4)
0.08 Third layer (green sensitive layer) Silver chlorobromide emulsion (cubic, 1:3 mixture of one with an average grain size of 0.55° and one with an average grain size of 0.39° (Ag molar ratio). Grain size The coefficient of variation of the distribution is 0.10 and 0.08,
(Each emulsion contained 0.8 mol% of AgBr locally on the grain surface) 0.12 Gelatin
1.24 magenta coupler (ExM
) 0.20 color image stabilizer (Cpd-2
) 0.03 color image stabilizer (Cpd
-3) 0.15 color image stabilizer (C
pd-4) 0.02 Color image stabilizer (Cpd-9) 0.02 Solvent (Solv-2) 0.40
Fourth layer (ultraviolet absorption layer) Gelatin 1.58 Ultraviolet absorber (UV-1) 0.47 Color mixing prevention agent (Cpd-5) 0.05
Solvent (Solv-5) 0.
24 Fifth layer (red-sensitive layer) Silver chlorobromide emulsion (cubic, TE4 mixture (88 molar ratio) of one with an average grain size of 0.58 m and one with an average grain size of 0.45 I!m. Coefficient of variation of grain size distribution are 0.09 and 0.1
). (Each emulsion contained AgBrO, 6 mol% locally on a part of the grain surface) 0.23 Gelatin
1.34 cyan coupler (Ex
C) 0.30 color image stabilizer (Cp
d-6) 0.17 color image stabilizer (
Cpd-7) 0.40 Color image stabilizer (Cpd-8) 0.04 Solvent (Solv-6) 0.15
Sixth layer (ultraviolet absorbing layer) Gelatin ultraviolet absorber (tlV-1) Color mixing prevention agent (Cpd-5) Container (Solv-5) Seventh layer (protective layer) Gelatin polyvinyl alcohol scum (denaturation degree 17%) ) Liquid paraffin (ExY) 1:l mixture (molar ratio) with yellow coupler 0.53 0.16 0.02 0.08 1.33 Lyle modified copolymer 0.17 0.03 (ExM) with magenta coupler R=Mixture of 2:4:4 by weight of Calls and CaHq l respectively (Cpd-1) Color image stabilizer (Cpd-2) 1:1 mixture of color image stabilizers (molar ratio) υUL, zlls (ExC ) Cyan coupler (Cpd-3) Color image stabilizer (Cpd-4) Color image stabilizer (Cpd-5) Color mixture prevention agent 0■ (Cpd-6) Color image stabilizer (Solv-1)? 2:4:4 mixture of medium (weight ratio) (Cpd-7) Color image stabilizer → C1l□-CHf (Cpd-8) Color image stabilizer H (Cpd-9) Color image stabilizer (υV 1) Ultraviolet absorber (Solv-2) Solvent (Solv-4) Solvent (SO! Sea 5) Solvent C00Csll17 (CHz)s C00CeH+.

(Sol Sea 6) Solvent Table 4 Fuji Color Super 1) G400 manufactured by Fuji Photo Film ■
(color negative film) was used to photograph the woman and the flowers arranged in the flower basket (including red, white and yellow roses).
A 35 mm color negative film was obtained using a standard standard (CN-16 was used).

Samples 7 to 9 were printed from the color negative film using an automatic color printer FAP-3500.
Samples 8 and 9 were obtained by changing the composition of the first, third and fifth layers of α7 as shown in Table 3.

A 500W tungsten bulb (2854°K) as a light source,
Separate exposure of blue, green, and red was carried out using an interference filter (with the spectral transmittance curve shown in Figure 2) and a backlash wedge.
Development processing was carried out according to development processing steps 1 and 2.

The concentration of the obtained sample was measured using an X-Riteil 1 degree meter, model 310'', using a status A spectroscopic wedge, and the Dc value and R value were determined from the obtained characteristic curves.Table 4 shows the values.

The prints were attached and further developed using processing steps 1 and 2 to obtain six-sized print photographs (203a+n x 254mm).

Further, Samples 8 and 9 were exposed to light for printing, and developed in the development process 1 to obtain six-cut size print photographs. The density information of this printed photograph is read, and based on the characteristic curves of samples 8 and 9, the exposure conditions are set by changing the R value of the shoulder part according to the conversion table, the exposure is performed using a computer simulation device, and the same development process is performed. A printed photograph was obtained by developing in step 1.

For computer simulation equipment, "Optics" Vol. 1), No. 6, No. 57, published by the Japanese Society of Applied Physics Optics Conference
A computer laser writing device prepared by the device and method described on pages 3 to 578 was used.

A psychological evaluation of the quality of the obtained images was conducted by seven panelists, and the results shown in Table 5 were obtained.

The above results show that even if the Dc value is lowered to 2.5 or less by decreasing the amount of silver halide or decreasing the amount of coupler, R
It is shown that when the value is lowered to 6.5 or less, a rapid situational image can be achieved without reducing the quality of the image by visual evaluation.

Dc from the sample obtained by computer simulation
The effect of lowering the R value below 6 at low values of 2.4 and below can be seen.

Furthermore, good photographic properties can also be obtained in samples with a Dc value of 2.0 to 1.4 and an R value of 5 to 2. This means that with smaller amounts of coupler, silver halide, and gelatin, image quality comparable to or better than that of samples with larger amounts can be obtained, and costs can be reduced significantly.

(Preferred embodiment of the present invention) (1) Blue-sensitive YL and green-sensitive ML are placed on a reflective support.
, and a red-sensitive CL, wherein the ML and CL preferably have a Dc value of 2.5 to 1.4 and a shoulder R value of 6 to 2 in the YL, tag and CL. material.

(2) On the reflective support, green-sensitive YL, red-sensitive ML
, a CL with infrared sensitivity is provided, and the Dc value is 2.5 to 1.
．． 4 and an R value of 6 to 2.

(3) On the reflective support, at least two layers among YL, ML and CL have sensitivity in the infrared wavelength region (wavelength region longer than 700r+n), and at least two of the layers have an R value of 6. A reflective color photosensitive material having a rating of 5 to 2.

(4) The above (1) in which the silver halide coating amount is 0.7 g/nf or less, preferably 0.64 g/n (or less)
The reflective color photosensitive material according to any one of (3) to (3).

(5) Using the silver halide color light-sensitive material according to any one of (1) to (4) above, the processing time of color development, desilvering treatment, and water washing or stabilizing bath is 90 seconds or less, preferably 60 seconds or less. A color image forming method.

(6) Photographic print obtained by the above (5).

(7) The above-mentioned (1
) to (6).

(8) The above (1) using a 2-equivalent cyan coupler represented by the general formula (C-I) or a 2-equivalent cyan coupler represented by the general formula (C-If) as CL.
) to (7).

(9) In ML or CL, the number of moles of silver halide used is 2 to 10 relative to the number of moles of coupler used, and the R value of the shoulder part is 6.5 or less (7) or (8) above. Color photosensitive material as described.

(Effects of the Invention) According to the present invention, it is possible to reduce the total amount of silver halide used and to produce print photographs that look excellent despite the fact that the Dc value is relatively low, at low cost, quickly and easily. You can wander around.

[Brief explanation of drawings]

FIG. 1 shows the Dc value and R of the color photosensitive material according to the present invention.
This is an example of a characteristic curve to show how to obtain values. FIG. 2 shows the spectral transmittance curve of the three-color separation filter used in Example 3.

Claims (1)

[Scope of Claims] (1) A silver halide photosensitive layer containing a yellow coupler (YL), a silver halide photosensitive layer containing a magenta coupler (ML), and a silver halide photosensitive layer containing a cyan coupler, on a reflective support. In a reflective color photosensitive material provided with a layer (CL), in the characteristic curve of at least two of the three photosensitive layers, a specified Dc value (effective shoulder color density) is 2.5 or less, A reflective color photosensitive material characterized in that the R value (radius of curvature of the shoulder gradation in units of 0.1 of the logarithm of the density or exposure amount) of the defined shoulder portion is 6.5 or less. (2) The reflective color photosensitive material according to claim 1, wherein the Dc value of at least two photosensitive layers is 2.4 or less, and the R value of the shoulder portion is 6 or less. (3) The reflective color photosensitive material according to claim (1) or (2), wherein the Dc value of at least two photosensitive layers is 2.0 to 1.4, and the R value of the shoulder portion is 5 to 2. (4) The Dc value and the R value of the shoulder area can be obtained from the characteristic curve of the photosensitive layer obtained by subjecting the reflective color photosensitive material to light wedge exposure using a three-color separation filter and then performing the following processing step 1. The reflective color photosensitive material according to any one of claims (1) to (3). ▲Contains mathematical formulas, chemical formulas, tables, etc.▼￥Color developer￥ Ethylenediamine-N,N,N', N'-tetramethylenephosphonic acid 3.0g N,N-di(carboxymethyl)hydrazine 4.5g N,N -Diethylhydroxylamine oxalate 2.0g Triethanolamine 8.5g Sodium sulfite 0.14g Potassium chloride 1.6g Potassium bromide 0.01g Potassium carbonate 25.0g N-ethyl-N-(β-methanesulfonamidoethyl )-3-Methyl-4-amino-aminoaniline sulfate 3.0g N-ethyl-N-hydroxyethyl-3-methyl-4-aminoaniline sulfate 1.4g WHITEX-4 (manufactured by Sumitomo Chemical) 1.4g Add water to 1000ml Adjust to pH 10.05 Bleach-fix solution Ammonium thiosulfate (55wt%) 100ml Sodium sulfite 17.0g Iron(III) ammonium ethylenediaminetetraacetate 55.0g Disodium ethylenediaminetetraacetate 5.0g Ammonium bromide 40 .0g Glacial acetic acid 9.0g Add water to 1000ml Adjust to pH 5.80￥Rinse liquid￥ Ion exchange water (calcium ion 3ppm or less, magnesium ion 2ppm or less) (5) Any of claims (1) to (4) A method for forming a color image, which comprises performing a color development process using the reflective color photosensitive material described in 1, in which the development time excluding drying time is 90 seconds or less.