JPH03290658A - Color photographic sensitive material having improved hue reproducibility - Google Patents

Abstract

PURPOSE:To improve the hue reproducibility of green circumferences and to faithfully reproduce the hues of orange and sky blue colors by increasing the max. sensitivity of red sensitive layers in a prescribed wavelength region relative ly to the max. sensitivity of blue sensitive layers in the same wavelength region. CONSTITUTION:The wavelength lambda Bmax to impart the max. sensitivity of the spectral sensitivity distribution of the blue sensitive silver halide emulsion layers of the photosensitive material having respectively >=1 layers of the red sensitive silver halide emulsion layers contg. cyan image forming couplers, blue sensitive silver halide emulsion layers contg. magenta image forming couplers and blue sensitive silver halide emulsion layers contg. yellow image forming couplers on a base is 415nm<=lambdaBmax<=470nm and the max. sensitivity of the red sensitive silver halide emulsion layers in the wavelength region of >=400nm and <=480nm is specified to >=1.5% of the max. sensitivity of the blue sensitive silver halide emulsion layers in the same wavelength region. The photosensitive material obtd. in such a manner can improve the hue reproducibility in all the hues of the green circumferences and can faithfully reproduce the hues of the orange and sky blues as well.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a color photographic material, and more specifically,
This invention relates to a color photographic material with high saturation and excellent hue reproducibility.

[Conventional technology]

In recent years, the image quality of silver halide multilayer color photographic materials has significantly improved.

In other words, in recent color photographic materials, there are three types of image quality.
The three major factors of graininess, sharpness, and color reproducibility are all at very high levels. For example, when it comes to general color photographs, it is believed that there are usually no major complaints regarding the color prints and slide photographs that users receive.

However, among the three factors mentioned above, in particular regarding color reproducibility, although color purity has been improved, there are still many deficiencies in hue reproducibility.

For example, colors such as blue-green and yellow-green may be reproduced as completely different from the actual colors, which may disappoint the user.

It has been said that the major factors related to color reproducibility are interlayer effect (interimage effect) and spectral sensitivity distribution.

The following is known about the interimage effect. That is, in silver halide multilayer color photographic light-sensitive materials, it is known to add a compound that couples with the oxidized form of a color developing agent to form a development inhibitor or its precursor. It is known that by inhibiting the development of other color-forming layers using a development inhibitor, an interimage effect is produced and color reproducibility is improved.

Furthermore, in color negative films, it is possible to provide an effect similar to the interimage effect by using a colored coupler in an amount greater than the amount that offsets unnecessary absorption.

By the way, these techniques are particularly effective in improving color purity among color reproducibility. Among them, the so-called diffusive DIR, in which the mobility of inhibitor groups and their precursors, which have been frequently used recently, is high, greatly contributes to the improvement of color purity. However, the interimage effect
It is difficult to control the directionality, and although it can achieve high color purity, it also has the disadvantage of changing the hue. For controlling the direction of the interimage effect, see
It is described in US Pat. No. 4,725.529 and the like.

On the other hand, when colored couplers are used extensively, the minimum density of the film increases, making it extremely difficult to judge color/density correction during printing, and as a result, the color quality of the resulting prints may be poor. occurs often.

For spectral sensitivity distribution, see U.S. Patent No. 3.672.89.
No. 8 discloses an appropriate spectral sensitivity distribution for reducing variations in color reproducibility due to differences in light sources during photography.

However, this does not serve as a means to improve the reproducibility of the aforementioned colors with poor hue reproducibility.

Generally speaking, in order to faithfully reproduce intermediate color hues such as blue-green and yellow-green, it is sufficient to increase the wavelength range in which the spectral sensitivity distributions of the blue-sensitive layer, green-sensitive layer, and red-sensitive layer overlap with each other. , which inevitably leads to deterioration of color purity. Therefore, in order to improve hue reproduction without deteriorating color purity, it is necessary to carefully design the spectral sensitivity distribution and interimage effect. For example, JP-A-61-34 discloses a technique that combines spectral sensitivity distribution and interimage effect.
No. 541 attempts to improve colors whose hues are difficult to reproduce with color films, and it is thought that some degree of effectiveness can be achieved. Typical examples include not only the conventional interimage effect from the center wavelength of each of the blue, green, and red sensitive layers, but also the interimage effect from wavelengths other than the center of gravity of each color-sensitive layer. That is what it is.

This technology seems to be effective to some extent in improving the hue reproducibility of specific colors, but specifically, it is necessary to improve the hue reproducibility of specific colors. In addition, an interimage effect layer and a different type of photosensitive silver halide are required, which increases the amount of silver and the number of production steps, resulting in high production costs. have.

Therefore, there is a desire in the industry to improve color reproducibility by the simplest possible method, and the present inventors have also made extensive efforts to solve this problem.

[Problem that the invention seeks to solve]

The present invention aims to solve the problems of the prior art described above. That is, an object of the present invention is to provide a silver halide color photosensitive material that has good color reproduction, faithfully reproduces hues around green in particular while maintaining color purity, and is also excellent in hue reproduction of orange and blue sky blue. The purpose is to provide materials.

[Means for Solving the Problems] The object of the present invention is to form red-sensitive silver halide emulsion layers (hereinafter appropriately referred to as "red-sensitive layers") each containing one or more cyan image-forming couplers on a support. ),
A green-sensitive silver halide emulsion layer containing a magenta image-forming coupler (hereinafter sometimes referred to as "green-sensitive layer")
, and a blue-sensitive silver halide emulsion layer (hereinafter also referred to as "blue-sensitive layer") containing a yellow image-forming coupler, the spectral sensitivity distribution of the blue-sensitive silver halide emulsion layer is The wavelength λ811a that gives the maximum sensitivity is 415 nm≦λBmax≦470 nm, and 4
The maximum sensitivity S Rmax of the red-sensitive silver halide emulsion layer in the wavelength range from 00na+ to 480na+ is the same<
1.5 of the maximum sensitivity S Rmax of the blue-sensitive silver halide emulsion layer in the wavelength range from 400 nm to 480 nm
This was achieved by using a silver halide color photographic light-sensitive material which is characterized by a silver halide color photographic material having a silver halide content of at least %.

The present invention will be explained in more detail below.

In the present invention, the spectral sensitivity distribution refers to the 40°
Exposure is applied with spectral light from nIl to 700nIl at intervals of several nanometers, and the exposure amount that provides a constant density at each wavelength is defined as the sensitivity at each wavelength, and the sensitivity is made a function of wavelength.

A preferred embodiment B of the photosensitive material of the present invention is as follows.

That is, one embodiment of the photographic material of the present invention preferably has one or more blue-sensitive layers, one or more green-sensitive layers, and one or more red-sensitive layers on a support in this order from the side closest to the support. It is.

In the present invention, the spectral sensitivity distribution of the blue-sensitive layer has a wavelength Bmax that provides maximum sensitivity of 415 nm≦λBmax≦4.
70, but more preferably, the sensitivity at λ=480 nm is 50% of the maximum sensitivity value of this blue-sensitive layer in the spectral sensitivity distribution at a density point 0.1 higher than the lowest density of the blue-sensitive layer. % or less is preferable.

Furthermore, the ratio of the maximum sensitivity S Rtaax of the red-sensitive layer in the wavelength range from 400 nm+ to 480 nm to the maximum sensitivity S Borax of the blue-sensitive layer in the same wavelength range is 2.5%.
It is preferably 6% or less.

The present invention can be embodied in various photosensitive materials, and is preferably applied to, for example, color negative photosensitive materials, but is not particularly limited thereto, and may also be applied to other photosensitive materials, such as color reversal photosensitive materials. Similarly, favorable hue reproduction can be achieved.

Next, in order to make the spectral sensitivity distribution of the blue-sensitive layer of the color photographic light-sensitive material of the present invention into the shape according to the present invention, various methods can be arbitrarily used. A means of spectral sensitization with a sensitizing dye having an absorption spectrum in the desired wavelength range, or a means of optimizing the halogen composition and distribution of silver halide without using a sensitizing dye to provide the desired spectral sensitivity; There is a means to adjust the spectral sensitivity distribution to a desired level by using a suitable optical absorber in the light-sensitive material.

Of course, these means may also be used in combination.

Examples of sensitizing dyes that can be used in the blue-sensitive silver halide emulsion layer in the light-sensitive material of the invention to obtain the spectral sensitivity distribution of the invention are shown below. However, it is not limited to the examples below.

Note that there is no particular limitation on the amount of the spectral sensitizing dye added, and it may be added in an optimum amount so as to obtain a desired spectral sensitivity distribution.

GICH2 CO□H (CHz) 3 (CH2)! 03- 3OJN (CzHs) 3 J 3 S S-5 S S 1 (CHz) 3 (CHz) 5 SOl 03Na (CH2) 3 (CHz): + 03 SOJN (CzHs) s 03 SOJN (C2H5)x Below the remainder μ , - Noe v Next, in the photosensitive material of the present invention, 400 nm or more 4
Maximum sensitivity S of the red-sensitive layer in the wavelength range below 80no+
Although RIlax is 1.5% or more of the maximum sensitivity S Borax of the blue-sensitive layer in the same wavelength range, any technique can be adopted as a means for relatively increasing the spectral sensitivity of the red-sensitive layer. As one of the means for this purpose, for example,
There is a method of reducing yellow colloidal silver, which is normally used in color photographic materials to absorb irregular light in the wavelength range to which silver halide is uniquely sensitive, and there are various other techniques. Preferably, this structure is achieved by incorporating a cyan coloring coupler into the blue-sensitive silver halide emulsion layer. Preferred cyan couplers that can be included in the blue-sensitive layer when this method is adopted will be described below.

As the cyan coupler contained in the blue-sensitive layer, a 2-equivalent cyan coupler or a 4-equivalent cyan coupler can be used.

Generally, the two-equivalent cyan coupler that can be added to the blue-sensitive layer is preferably one represented by the following general formula [CI].

General formula (CI) C,p In the formula, Cp represents a coupler residue, * represents the coupling position of the coupler, and X is a dye formed by coupling with an oxidized product of an aromatic primary amine color developing agent. represents a group that leaves when

Representative cyan coupler residues Cp include U.S. Patent Nos. 2,367.531, 2,423,730, 2.474.293, and 2,772.162.
No. 2,895, 826, No. 3.002.83
No. 6, No. 3.034,892, No. 3.041.2
No. 36 and the above-mentioned Agfa Mitteilung (B
and II) pages 156-175 (1961). Among these, phenols or naphthols are preferred.

Examples of the leaving group represented by X include halogen atom, alkoxy group, aryloxy group, heterocyclic oxy group, acyloxy group, alkylthio group, represents a group of atoms required to form a 5- to 6-membered ring with at least one atom selected from atoms), monovalent groups such as acylamino groups and sulbonamide groups, and divalent groups such as alkylene groups, In the case of a divalent group, X forms a dimer.

Specific examples are given below.

Halogen atoms: chlorine, bromine, fluorine alkoxy groups: 0CJs, 0CHzCONHCHzCHzOC
Hi.

Aryloxy group: Heterocyclic oxy group: Alkylthio group: SCH3 CzHs SCIIH+? -SC, □nzs SGHZCOOCJs SCHzCHzOCzHs Heterocyclic thio group: Pyrazolyl group.

imidazolyl group.

Triazolyl group.

NHCO (CF 2 CF RI ZH) In the present invention, the 2-equivalent cyan coupler to be contained in the blue-sensitive layer has the following general formula [CI[).

(C1l, CCPJ) is preferable.

In the formula, R21 represents a hydrogen atom or a substituent, R'', R
2'' represents a substituent, m is 1-3, n is 1-2, p is 1
5, and when m, n, and p are 2 or more, each R'' may be the same or different. X has the same meaning as X in the general formula [(1).

Examples of the substituent represented by R'' include a halogen atom,
Examples include multiple groups such as alkyl, cycloalkyl, aryl, and heterocycle bonded directly or via divalent atoms or groups.

Examples of the above divalent atoms or groups include oxygen atoms,
Nitrogen atom, sulfur atom, carbonylamino, aminocarbonyl, sulfonylamino, aminosulfonyl, amino, carbonyl, carbonyloxy, oxycarbonyl,
ureylene, thioureylene, thiocarbonylamino,
Examples include sulfonyl and sulfonyloxy.

Moreover, the above-mentioned alkyl, cycloalkyl, ring, and heterocycle include those having a substituent.

Examples of the substituent include halogen atom, nitro, cyano, alkyl, alkenyl, cycloalkyl, aryl,
alkoxy, aryloxy, alkoxycarbonyl,
Aryloxycarbonyl, carboxy, sulfo, sulfamoyl, carbamoyl, acylamino, ureido,
Urethane, sulfonamide, heterocycle, arylsulfonyl, alkylsulfonyl, arylthio, alkylthio, alkylamino, anilino, hydroxy, imide,
Examples include acyl.

Examples of Rzz and R23 include multiple groups such as alkyl, cycloalkyl, aryl, and heterocycle, including those having substituents.

In the two-equivalent cyan couplers represented by Taisei (CII) to [CIV] above, examples of X include the same ones as exemplified for (C1), including halogen atoms, alkoxy groups, and sulfonamide groups are particularly preferred.

In addition, for cyan couplers represented by - Taisei (CII) and (CI[I), R21, R2z or X is 2
Taisei (CIV
), for the cyan coupler represented by Rzz, R”
, R'' or X to form a dimer or more multimer.

In the present invention, specific examples of 2-equivalent cyan couplers that can be used are listed below, but the invention is not limited thereto.

2 equivalent cyan coupler ・qte 0CRCOOH H3 OCHzC)lzsO□CFI.

H NHCOCToCLCOOH NH30zCH! NHCOCHzCHzCOOH OCONHCJt 2 6 H OCR2CONH(CH2)20CH3CHx 0CR3 4NQ C4H9 2 30 2 2 H Next, 4 which can be used in the blue-sensitive layer in the present invention
Equivalence couplers will be described.

A 4-equivalent coupler is a coupler having no substituent at the coupling position, and as such a 4-equivalent cyan coupler, phenols and naphthols are preferable.

A more preferable 4-equivalent coupler has the above-mentioned general formula (
Examples include those in which X at the coupling position in Cm) to (CIV) is a hydrogen atom. R2 in this case
1, R! As an example of 3, - Taisei [C ■] ~ (CCV
), and in each case, the case where a dimer or more multimer is formed with R''%R23 is also included.

In the present invention, specific examples of 4-equivalent couplers that can be used are listed below, but the invention is not limited thereto.

33 x:y=50:50 4-equivalent cyan coupler 4-5 C4 4 4 5 H H I Cl1lH17 4 t 4 31 x : y 40 : 60 (weight ratio) 4 2 x:y 50 : 50 (weight ratio) Furthermore, each maximum sensitivity S Rmax, S Bmax of the red-sensitive layer and the blue-sensitive layer in the range from 400 nm to 480 nm
In order to achieve the relationship of the present invention, the following so-called diffusive DIR couplers can be used in the blue-sensitive layer.

The following diffusive DIR couplers are included in the concept of the cyan coupler described above in a broad sense.

Listed below are diffusible DIRs that can be used in the practice of the present invention.
Examples of coupler compounds are shown below, but are not limited to the following, and the following are some examples.

Among the above-mentioned couplers, a diffusive DIR coupler is preferable as the cyan coupler added to the blue-sensitive layer.

There is no particular limitation on the amount of coupler added, and it may be added in an appropriate amount so that the maximum sensitivity relationship falls within the range of the present invention.

The silver halide emulsion used in the color light-sensitive material of the present invention is
Chemical sensitization can be carried out by conventional methods.

Antifoggants, stabilizers, etc. can be added to the silver halide emulsion. As a binder for the emulsion, it is advantageous to use gelatin (however, it is not limited to this)
.

The emulsion layer and other hydrophilic colloid layers can be hardened and can contain a plasticizer and a dispersion (latex) of a water-insoluble or sparingly soluble synthetic polymer.

In the color photographic light-sensitive material of the present invention, a coupler for color development is generally used in the emulsion layer, but it is also possible to use a color coupler that has a correction effect by coupling with a competitive coupler and an oxidized product of a coloring agent. Phenomena accelerator, bleach accelerator, developer, silver halide solvent, toning agent, hardening agent,
Chemicals that release photographically useful fragments can be used, such as fogging agents, antifoggants, chemical sensitizers, spectral sensitizers, and desensitizers.

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

A formalin scavenger-1 fluorescent brightener, a matting agent, a lubricant, an image stabilizer, a surfactant, a color cast inhibitor, a phenomenon accelerator, a phenomenon retardant, and a bleach accelerator can be added to the photosensitive material.

As a support, paper laminated with polyethylene, etc.
Any material such as polyethylene terephthalate film, baryta paper, cellulose triacetate, etc. can be used.

To obtain a dye image using the color photosensitive material of the present invention,
After exposure, commonly known color photographic processing can be performed.

〔Example〕

The present invention will be explained in detail below. However, it goes without saying that the embodiments of the present invention are not limited to the embodiments illustrated below.

In all the examples below, the amount added in the silver halide photographic light-sensitive material is in? unless otherwise specified. The number of grams per unit is shown, and 710 silver germide and colloidal silver are shown in terms of silver.

Example 1 On a triacetyl cellulose film support, each layer having the composition shown below was sequentially formed from the support side to prepare a multilayer color photographic material sample-101.

Sample-101 (comparison) 1st layer; antihalation layer (HC-1) black colloidal silver 0.20 UV absorber (UV-1)
0.20 high boiling point solvent (Oil-1)
0.20 gelatin 1.5
2nd layer: Intermediate layer (IL-1) UVII & astringent (UV-1) 0.04 High boiling point solvent (Oif-1) 0.04 Gelatin
1/2 Third layer; Low sensitivity red-sensitive emulsion layer (RL) Silver iodobromide emulsion (Em-1) 0.6 Silver iodobromide emulsion (Em-2) 0.2 Sensitizing dye (
SD-1) 2.2X10-' (mol/silver 1 mol) Sensitizing dye (SD-2) 2.2X10-' (mol/silver)
1 mole of silver) Sensitizing dye (SD-3) 0.44xlO-' (mol/1 mole of silver) Cyan coupler (C, -20) 0.65 colored cyan coupler (CC-1) 0.12 DIR coupler (ct+ -9) 0.004D
IR coupler (co-11) 0.013 High boiling point solvent (Oij!-1) 0.6 Gelatin
1.5 4th layer; High sensitivity red-sensitive emulsion layer (RH) Silver iodobromide emulsion (Em-3) 0.8 Sensitizing dye (
S D-1) 1.2X10-' (mol/1 mole of silver) Sensitizing dye (SD-2) 1.2X10-' (mol/1 mole of silver) Sensitizing dye (SD-3) 0. lX10-' (mol/l
! 1 mol) Cyan coupler (C, -29) 0.16 Cyan coupler CCt 8) 0.02 Colored cyan coupler (CC-1) 0.03 DIR compound (co -11) 0.016 High boiling point solvent (Oiffi-1 ) 0.2 Gelatin 1.3 5th layer; intermediate layer (I
L-2) Gelatin 0.7 6th layer; low sensitivity green-sensitive emulsion layer (GL) Silver iodobromide emulsion (Em-1) 0.8 sensitizing dye (
SD-4) 3.0X10-' (mol/1 mole of silver) Sensitizing dye (SD-5) 5.0X10-' (mol/1 mole of silver) Magenta coupler (M-1) 0.2 magenta coupler (M -2) 0.2 colored magenta coupler (CM-1) 0.1 DIR compound (D-1) 0.02 DIR compound (D -2>0.004 high boiling point solvent (
Oij! -2) 0.4 gelatin
1.0 7th layer; high-sensitivity green-sensitive emulsion layer (OH
) Silver iodobromide emulsion (Em-3) 0.9 sensitizing dye (
SD-4) 1.5XlO-' (mol/silver 1 mol) Sensitizing dye (SD-5) 2.5X10-' (mol/silver 1 mol) Sensitizing dye (SD-6) 0.55 Xl0- '(Mole/1 mole of silver) Magenta coupler (M-2) 0.09 Colored magenta coupler (CM-2) 0.04 DIR compound (D-1) 0.006 High boiling point solvent (Oif-2) 0.3 gelatin
1.0 8th layer: yellow filter layer (YC) yellow colloidal silver 0.1 color stain inhibitor (SC-1) 0.1 high boiling point solvent (
Oif-3) 0.1 gelatin
0.8 9th layer: Low sensitivity blue-sensitive emulsion layer (BL) Silver iodobromide emulsion (Em-1) 0.35, Silver iodobromide emulsion (Em-2) 0.10 Sensitizing dye (S
D-8) 0.6X10-” (mol/l! 1 mol) Yellow coupler (Y-1) 0.6 yellow coupler (Y-2) 0.1DIR coupler (C
o 11) 0.01 high boiling point solvent (Oij!-
3) 0.3 gelatin
1.0 10th layer: Highly sensitive blue-sensitive emulsion layer (BH) Silver iodobromide emulsion (Em-3) 0.4 Silver iodobromide emulsion (E
m-1) 0.1 sensitizing dye (SD-7) IXI
O-' (mol/silver 1 mol) tel color sensitivity ll (S D -s) O,5x1o-
3 (mol/mol of silver) Yellow coupler (Y-1) 0.20 Yellow coupler (Y-2) 0.03 High boiling point solvent (O
ii! , -3) 0.07 gelatin
1.1 1st f layer; 1st protective layer (PRO-
1) Fine grain silver iodobromide emulsion (average grain size 0.08 μm, silver iodide content mol%) 0.0
2 UV absorber (UV-1) 0.10 UV absorber (UV-2) 0.05 High boiling point solvent (
Oif-1) 0.1 high boiling point solvent (O4l!-
4) In 0.1 formalin scavenging - (MS
-1) 0.5 in formalin scavenge - (H3-2) 0.2 gelatin i.

12th layer; 2nd protective layer (PRO-2) Surfactant (S u -1) 0.005 Alkali-soluble matting agent (average particle size 2 μm) 0.05 Polymethyl methacrylate (average particle size 3 μm) 0.05 Sliding agent (WAX-1) 0.04 Gelatin 0.5 In addition to the above composition,
Coating aid 5u-2, dispersion aid 5u-3 and 5u-4, hardener H-1, H-2, stabilizer 5T-1, antifoggant A
F-1, My: 10.000 and 1st layer: 1.10
0.000 of two types of AP-2 were added.

The emulsion used in the above sample is as follows.

Em-1 Average particle size 0.45 μm.

Average silver iodide content 6.0 mol%.

Core/shell type silver iodobromide emulsion Em-2 which is monodisperse (width of distribution 18%) and has a relative standard deviation of silver iodide content of individual grains of 13%. Average grain size is 0.25 μm.

Average silver iodide content 6.0 mol%.

Core/shell type silver iodobromide emulsion 2m-3 having monodispersity (width of distribution 18%) and relative standard deviation of silver iodobromide content of individual grains 12%, average grain size 0.80t1m.

Average silver iodide content 7.0 mol%.

A core/shell type silver iodobromide emulsion that is monodisperse (width of distribution 16%) and has a relative standard deviation of silver iodide content of individual grains of 11%.The compounds used in the above sample were as follows: That's right.

D-5 (CzHs) 3N+(Φ SD~7 (CHz)ssOsNa -1 M-2 c-1 M M -1 Su 1 ut Su Next, the composition of the above sample was changed as shown in Table 1, Samples 102 to 108 were created. That is, the above sample-101
low-sensitivity blue-sensitive layer (9th layer), high-sensitivity pre-malignant layer (1st O
For layer), the silver iodobromide emulsion and sensitizing dye were changed, and in addition to the yellow coloring coupler, a cyan coloring coupler shown in the table was newly added. At this time, the 9th
layer, depending on the type and amount of the cyan color-forming coupler contained in the 10th layer, a low sensitivity red sensitivity layer (third layer) and/or a high sensitivity red sensitivity layer (fourth layer) and/or a high sensitivity green sensitivity layer. As shown in Table-1, the coating amount of the layer (7th layer) was as follows: Sample-10
1 was adjusted from time to time.

Silver iodobromide emulsions Em-4 and Em-5 newly used in Samples-103 to 108 are as follows.

m-4 Average particle size: 0.50 μm.

Average silver iodide content: 5.8 mol%.

Core/shell type silver iodobromide emulsion E m -5 having monodispersity (width of distribution 17%) and relative standard deviation of silver iodide content of individual grains 12% Average grain size 0.90 μm.

Average silver iodide content 6.0%.

Core/shell type silver iodobromide emulsions which are monodisperse (width of distribution 16%) and have a relative standard deviation of silver iodide content of individual grains of 13%.For samples 101 to 108 prepared in this way , Wedge exposure with white light and color development processing described below were performed, and similar sensitometry was obtained in all cases.

Next, samples 101 to 108 were subjected to spectral exposure using several types of interference filters effective in the visible region, and developed in the same way as above. The sensitivity that gives a density of +0.1 was determined, and a spectral sensitivity distribution over the entire visible region was obtained. From the obtained spectral sensitivity distribution, the wavelength λBorax that gives the maximum sensitivity of the blue-sensitive emulsion layer and the sensitivity of the blue-sensitive emulsion layer at a wavelength of 480 nm+ (SB (480 nm)
) to the maximum sensitivity S Bn+ax of the blue-sensitive emulsion layer SB (480 nm) / SBa+ax, also 4
Maximum sensitivity of the red-sensitive emulsion layer S Rmax in the wavelength range from 00 to 480 nm Maximum sensitivity of the blue-sensitive emulsion layer S Bm
Find the ratio SRmax/SBmax to ax, and calculate it as a percentage, i.e. (SRmax/SBn+ax)
It is shown in Table 2 as a value of 100.

Processing process (38°C) Color development 3 minutes 15 seconds Bleach 6 minutes 30 seconds water washing 3 minutes 15 seconds Fixation 6 minutes 30 seconds water washing 3 minutes 15 seconds Stabilization 1 minute 30 seconds Drying Used in each processing step The composition of the treatment solution was as follows.

<Color developer> 4-Amino-3-methyl-N-ethyl-N-(β-hydroxyethyl)aniline sulfate 4.75g Anhydrous sodium sulfite 4.25g Hydroxyamine 1/2 sulfate 2.0g anhydrous Potassium carbonate 37.5g Sodium bromide
1.3g Nitrilotriacetic acid trisodium salt (monohydrate) 2.5g Potassium hydroxide 1.0g Add water to make 11. (pH = 10.1) Bleaching Solution> Iron(III) ethylenediaminetetraacetic acid Ammonium salt 100g Ethylenediaminetetraacetic acid 2 Ammonium salt 10.0g Ammonium bromide 150.0g Glacial acetic acid 10mf! Add water to 11! , and adjust the pH to 6.0 using ammonium water.

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

<Stabilizing solution> Formalin (37% aqueous solution) 1.5+wj
2 Konidax (manufactured by Konica Corporation) 1.5ra
Add l water to make 11.

Furthermore, after processing these samples into shapes so that they can be photographed using a camera, they are colored in the Macbeth color chart of BG (blue-green), G (green), YG (yellow-green), and OR (orange).
, a fabric having BF (blue-purple) and blue-green colors was photographed. After shooting, the above-mentioned development process is carried out, and at the same time, Konica Color P is applied so that the gray standard reflective plate photographed will be reproduced as gray.
Printed on C paper types S and H.

Next, the above color on the print was measured with a color analyzer (CM S-1200 manufactured by Murakami Color Co., Ltd.), and a"
The chromaticity points of each color (C light source) were plotted on a chromaticity diagram. The results are shown in FIG.

In FIG. 1, those on the straight line connecting the original of each color and the origin O exhibit the same hue as the original.

As shown in FIG. 1, samples 104 to 108 according to the present invention
is blue-green cloth, Macbeth color chart blue-green (BG
), the hue of green (G) is reproduced to a hue close to the original,
Furthermore, the hues of yellow-green (YG) and yellow (Y) were also improved. On the other hand, comparative samples 101 to 103 are blue-green cloth and Macbeth color chart BG and G.

It was not possible to bring all the hues of YG and Y close to the original. In addition, the sample odor according to the present invention, Sample-106, has a particularly large effect on blue-green cloth, BG, and G, and Samples-107 and 108 have a particularly large effect on Y.
It was found that the effect was particularly large for G and Y. Among them, sample-108 has improved chroma in all respects and exhibits particularly favorable color reproduction.

It has also been found that the configuration of the present invention can sufficiently improve the blue sky (BS) and orange (OR) hues of the Macbeth color chart.

This was completely unexpected even for the present inventor.Example 2 Samples-101 to 10B prepared in Example 1 were developed under the conditions shown below, and the other conditions were the same as in Example-1. When we performed a similar evaluation, similar results were obtained.

However, the process was continued until three times the capacity of the stabilization tank was filled with replenisher. Further, the stabilization treatment was carried out using a three-tank countercurrent 1, in which the replenisher was replenished into the final stabilizing liquid tank, and the overflow liquid flowed into the previous tank.

Furthermore, a portion of the overflow liquid (275 d/m) from the stabilization tank following the fixing tank was poured into the stabilization tank.

<Composition of color developer used> Potassium carbonate 30 g Sodium hydrogen carbonate 2.7 g Potassium sulfite 2.8 g Sodium bromide
1.3g hydroxylamine sulfate
3.2g sodium chloride
0.6g 4-amino-3-methyl-N-ethyl-N-(β-hydroxylethyl)aniline sulfate am salt 4.6g diethylenetriaminepentaacetic acid 3.0g potassium hydroxide
Add 1.3 g of water to make 1j2, and adjust the pH to 10.01 using potassium hydroxide or 20% sulfuric acid.

<Composition of color developer replenisher used> Potassium carbonate 40 g Sodium hydrogen carbonate 3 g Potassium sulfite
7g sodium bromide
0.5 g hydroxylamine sulfate 3.2 g 4-amino-3-methyl-N ethyl-N-(β-hydroxylethyl)aniline sulfate 6.0 g diethylenetriaminepentaacetic acid 3.0 g potassium hydroxide
Add 2 g of water to make the solution 11, and adjust the pH to 10.12 using potassium hydroxide or 20% sulfuric acid.

<Composition of the bleaching solution used> 1.3-diaminopropanetetraacetic acid ferric ammonium 0.35 mol ethylenediaminetetraacetic acid disodium 2 g ammonium bromide 150 g glacial acetic acid
401d ammonium nitrate
Add 40 g water to make 11, and adjust to pH 4.5 using aqueous ammonia or glacial acetic acid.

Composition of frequently used bleach replenishment solution> 1.3-diaminopropanetetraacetic acid ferric ammonium 0.40 mol ethylenediaminetetraacetic acid disodium 2 g ammonium bromide 170 g ammonium nitrate 50 g glacial acetic acid
61 ad! Add water to make a final solution, adjust the pH to 3.5 using aqueous ammonia or glacial acetic acid, and adjust as appropriate to maintain the pH of the bleach tank solution.

<Composition of fixer and fixer replenisher used> Ammonium thiosulfate 100 g Ammonium thiocyanate 150 g Anhydrous sodium bisulfite
20 g sodium metabisulfite
4.0g disodium ethylenediaminetetraacetate Add 1.0g water to make 700d, and adjust the pH using glacial acetic acid and aqueous ammonia.
Adjust to 6.5.

Composition of stabilizing solution and stabilizing replenisher used) 1.2-
0.1 g of benzisothiazolin-3-one 0.2 g of hexamethylenetetramine pH using potassium and 50% sulfuric acid
Adjusted to 7.0.

[Effects of the Invention] As mentioned above, the silver halide color photographic light-sensitive material of the present invention can improve the reproduction of all hues around green (blue-green to yellow), and also faithfully reproduce hues of orange and blue sky. It has the excellent effect of being able to be reproduced.

[Brief explanation of drawings]

FIG. 1 is a chromaticity diagram showing the hue reproducibility of each sample in an embodiment of the present invention. FIG. 3 is a diagram displaying color reproduction.

Claims (1)

[Scope of Claims] 1. A red-sensitive silver halide emulsion layer containing one or more layers of a cyan image-forming coupler, a green-sensitive silver halide emulsion layer containing a magenta image-forming coupler, and a yellow layer on a support. In a color light-sensitive material having a blue-sensitive silver halide emulsion layer containing an image-forming coupler, the wavelength λBmax that provides the maximum sensitivity of the spectral sensitivity distribution of the blue-sensitive silver halide emulsion layer is 415 nm≦λBmax≦470 nm, and , 4
The maximum sensitivity SRmax of the red-sensitive silver halide emulsion layer in the wavelength range from 00 nm to 480 nm is also 400
1. A silver halide color photographic light-sensitive material characterized in that the maximum sensitivity SRmax of a blue-sensitive silver halide emulsion layer in the wavelength range from nm to 480 nm is 1.5% or more.