JPH05197094A - Silver halide color photographic sensitive material - Google Patents

Abstract

PURPOSE:To obtain a silver halide color photographic sensitive material possible to obtain efficiently a color proof improved in the approximation of an image to a printed matter from dot picture information obtained by color separation and dot picture conversion and having sufficient sharpness (dot reproducibility). CONSTITUTION:The subject silver halide color photographic sensitive material has at least respective silver halide emulsion layers containing silver halide particle and different in spectroscopic sensitivity of a yellow image forming layer, a magenta image forming layer and a cyan image forming layer and at least one layer of a black image forming layer containing silver halide particle. In this case, the reflection density of the silver halide color photographic sensitive material before developing processing in each wave length of 450nm, 550nm and 700nm is >=0.8.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention is preferably used for producing a proof color image (color proof) from a plurality of black and white halftone images obtained by color separation and halftone image conversion in a color plate making / printing process. The present invention relates to a silver halide color photographic light-sensitive material that can be used.

[0002]

BACKGROUND OF THE INVENTION There are primarily two types of techniques known in the art for obtaining direct positive images. One of the types is to use an emulsion containing silver halide grains having fog nuclei in advance and destroy the fog nuclei or latent image in the exposed area by utilizing the solarization or Herschel effect, etc. You get a positive directly. The other type uses an emulsion containing an internal latent image type silver halide grain that does not cause fog (generally surface fog) until the time of image exposure, and performs fog after image exposure (nucleation treatment).
Then, a positive image can be directly obtained by carrying out the surface development, or by carrying out the surface development while carrying out the fog processing after the image exposure.

The above-mentioned fog treatment may be performed by exposing the whole surface, chemically using a fog agent, using a strong developing solution, or by heat treatment. The emulsion containing the internal latent image type silver halide emulsion grains is a silver halide which has a photosensitive nucleus mainly inside the silver halide crystal grains and forms a latent image inside the grains upon exposure. A grain-containing emulsion.

Of the above two techniques for forming a positive image, the latter type generally has higher sensitivity than the former type and is suitable for applications requiring high sensitivity.

Various techniques have been known so far in this technical field. For example, U.S. Patent No. 2,592,250,
2,466,957, 2,497,875, 2,588,982, 3,7
61,266, 3,761,276, 3,796,577 and British patents
The method described in 1,151,363 etc. is known.

Although the mechanism of forming a positive image is not always clear, for example, Photographic Science and Engineering (Photographic Science and Engineering)
andEngineering) Vol. 20, p. 158 (1976), describes as follows.

Photoelectrons generated in the silver halide crystal grains by imagewise exposure are selectively captured inside the grains to form an internal latent image. Since this internal latent image acts as an effective trap center for electrons in the conduction band, in the exposed particles, the electrons injected in the subsequent fog development process are trapped inside and assist the latent image. Become. In this case, the latent image is not developed by surface development because it is inside. On the other hand, in particles that have not been subjected to image exposure, at least some of the injected electrons are captured on the surface of the particle and a latent image is formed there, so that the particle is developed by surface development.

Although a positive image can be formed by using the above-mentioned known technique, further improvement of photographic performance is desired for practical application of these photographic light-sensitive materials to various photographic fields. ..

On the other hand, as a conventional method for obtaining a color proof from a plurality of black and white halftone images obtained by color separation and halftone image conversion in the process of color plate making / printing, a photopolymer or a diazo compound has hitherto been used. An overlay method for forming a color image by using it and a surprint method are known.

The overlay method is very simple and inexpensive to produce, and it has the advantage that it can be used for proofreading simply by stacking four color (subtractive primary colors and black) film sheets. There is a drawback in that gloss is generated by stacking, and therefore, a texture different from that of the printed matter is obtained.

In the surprint method, a colored image is superposed on one support, and a method of obtaining a colored image by toner development utilizing the adhesive property of a photopolymerizable material is described in US Pat. No. 3,582,327. Nos. 3,607,264 and 3,620,726.

A color proof is obtained by transferring a photosensitive coloring sheet to a support, forming an image by exposure and development, laminating another coloring sheet on this, and repeating the same process. The method of making is 47
-27441 and JP-A-56-501217.

Further, there is disclosed a method in which a photosensitive colored sheet is used and each colored image obtained by exposing and developing the corresponding color separation film is transferred and formed on one support.
-Known as No. 97140. As the colorant of the toner and the color sheet for forming these images, the same coloring material as the printing ink can be used, and thus the color tone of the obtained color proof becomes similar to that of the printed matter.

However, these methods have the drawbacks that images must be superposed or transferred in the process of producing a color proof, which requires a long operation time and a high manufacturing cost.

As a solution to these drawbacks, a method for producing a color proof using a silver salt color photographic light-sensitive material having a white support is disclosed in JP-A-56-113139 and JP-A-56-104335. 62-280746, 62-280747, 62-
280748, 62-280749, 62-280750, 62-28084
No. 9 etc.

In this method, a color-separated black-and-white halftone image composed of a plurality of sheets converted from a color original into a halftone image obtained by color separation is successively printed on one sheet of color paper by a method such as contact printing, and color development is performed. A color image formed by a dye formed from a coupler imagewise by color development is used as a proof image.

However, in this technique, when the color image is approximated to the printed matter, the density of the black image such as characters is insufficient as compared with the printed matter, and the density of the black image such as the characters is increased to approximate the density of the printed matter. If the measures are taken, there is a drawback that the degree of approximation of the color image of the printed matter deteriorates and it is difficult to satisfy both of them.

As a technique for improving this drawback, a technique of providing a fourth black plate layer having a spectral sensitivity different from that of any of the yellow coloring layer, the magenta coloring layer and the cyan coloring layer has been conventionally known. There is. Also, JP-A-2-289846 and 2-18
Although technology for improving this problem is disclosed in No. 3251, etc., all of them are further improved for practical use such as increasing the number of exposures and impairing productivity, and lacking image stability. Is required.

Further, as a major problem when trying to approximate a color image to a printed matter by using a silver salt color light-sensitive material, deterioration of sharpness (halftone dot reproducibility) can be mentioned. When used for color proofing, sharpness, that is, dot reproducibility, is a very important quality.

Conventionally, the following methods have been known as methods for improving the sharpness of silver salt color light-sensitive materials.

(1) Irradiation is prevented with a water-soluble dye.

(2) Increasing the packing density of the white pigment in the polyolefin layer in the reflective support obtained by laminating the base paper with polyolefins.

(3) The photographic constituent layer containing a hydrophilic colloid is thinned.

(4) A compound which releases a development-inhibiting compound during development is contained in the photographic constituent layers.

The method (1) is used for color photosensitive materials for printing which are generally commercially available.
The content of the water-soluble dye is low, and the reflection density at each wavelength of 450 nm, 500 nm and 700 nm of the color light-sensitive material before development processing is less than 0.5. Therefore, sufficient sharpness and faithful color proof cannot be obtained.

Regarding (2), JP-A-61-284763,
No. 61-27049, No. 61-270750, etc.,
A satisfactory image cannot be obtained as a color proof.

With respect to (3), there is a limit to the thinning of the photographic constituent layer and the effect is small.

With respect to (4), the edge effect is emphasized at low spatial frequencies, but a satisfactory image cannot be obtained as a color proof.

[0029]

Therefore, an object of the present invention is to produce a color proof from a halftone dot image information obtained by color separation and halftone dot image conversion using a silver halide color photographic light-sensitive material. It is an object of the present invention to provide a color proof light-sensitive material capable of obtaining a color proof with improved image quality approximation with high production efficiency and having sufficient sharpness (halftone dot reproducibility).

[0030]

The object of the present invention is to provide, on a support, at least one yellow image-forming silver halide emulsion layer containing silver halide grains having different spectral sensitivities and at least one magenta image-forming halogen. A silver halide color photographic light-sensitive material having a silver halide emulsion layer, at least one cyan image-forming silver halide emulsion layer and at least one black image forming layer containing silver halide grains, wherein the silver halide color photograph This is achieved by a silver halide color photographic light-sensitive material having a reflection density of 0.8 or more at each wavelength of 450 nm, 500 nm and 700 nm before development processing of the light-sensitive material.

The reflection density in the present invention is a value obtained by measuring a sample with a color analyzer 607 type manufactured by Hitachi, Ltd.

The present invention will be described in more detail below.

The non-pre-fogged internal latent image type silver halide grains according to the present invention mainly form a latent image inside the silver halide grains and have most of the photosensitive nuclei inside the grains. It is an emulsion having grains.

Particularly preferably, the coated silver amount is about 1 to 3.5 g.
A portion of the sample coated on the transparent support so as to be in the range of / m ² is exposed to the light intensity scale for a certain period of time from about 0.1 second to about 1 second, and is substantially halogenated. When only the surface image of a grain not containing a silver solvent is developed using the following surface developer A at 4 ° C. for 4 minutes, another part of the same emulsion sample is similarly exposed to expose the inside of the grain. It is an emulsion showing a maximum density which is not more than 1/5 of the maximum density obtained when the image is developed with the following internal developer B at 20 ° C. for 4 minutes. More preferably, the maximum density obtained using surface developer A is no greater than 1/10 of the maximum density obtained with internal developer B.

(Surface developer A) Metol 2.5 g L-ascorbic acid 10.0 g Sodium metaborate (tetrahydrate) 35.0 g Potassium bromide 1.0 g Water was added 1000 ml (internal developer B) Metol 2.0 g Sodium sulfite (Anhydrous) 90.0 g Hydroquinone 8.0 g Sodium carbonate (monohydrate) 52.5 g Potassium bromide 5.0 g Potassium iodide 0.5 g Water was added to 1000 ml. Those prepared by the method are included. For example US patent
Conversion type silver halide emulsions described in 2,592,250, or silver halide emulsions having internally chemically sensitized silver halide grains described in U.S. Patents 3,206,316, 3,317,322 and 3,367,778, or U.S. Patents 3,
No. 271,157, No. 3,447,927, and No. 353,291, emulsions having silver halide grains containing polyvalent metal ions, or silver halide containing a dopant described in U.S. Pat. A silver halide emulsion in which the grain surface of the grain is weakly chemically sensitized, or JP-A-50-852.
No. 4, No. 50-38525, No. 53-2408, etc., and silver halide emulsions comprising grains having a laminated structure, and others are described in JP-A Nos. 52-156614 and 55-127549. For example, silver halide emulsion.

The internal latent image type silver halide grain in the present invention is a silver halide having any halogen composition, for example, silver bromide, silver chloride, silver chlorobromide, silver chloroiodide, silver iodobromide, chloroiodo. It may be silver bromide. The grains containing silver chloride have excellent developability and are suitable for rapid processing.

In the present invention, surface latent image type (also referred to as negative type) silver halide grains which mainly form a latent image can be used. These two kinds of silver halide grains are used properly according to the use of the light-sensitive material.

The shapes of particles are cubic, octahedral, and (100) plane.
A tetrahedron composed of a mixture of (111) faces, a shape having a (110) face,
It may be spherical, flat, or the like. The average particle size is 0.
Those having a diameter of 05 to 3 μm can be preferably used. The grain size distribution may be a monodisperse emulsion with uniform grain size and crystal habit, or an emulsion with no uniform grain size or crystal habit, but with monodisperse silver halide with uniform grain size and crystal habit. Preferably.

In the present invention, the monodisperse silver halide emulsion means that the weight of silver halide contained within a grain size range of ± 20% around the average grain size rm is the total weight of silver halide grains.
It is 60% or more, preferably 70% or more, and more preferably 80% or more. here,
The average particle size rm is the frequency ni and ri ^{3 of} particles having a particle size r i.
Is defined as the particle size ri when the product ni x ri ³ becomes maximum (three significant digits, rounding off the least significant digit to four). The term "particle size" as used herein means the diameter of spherical silver halide grains, or the diameter of a projected image converted into a circular image of the same area in the case of grains having a shape other than spherical. .. The particle size can be obtained, for example, by magnifying the particles with an electron microscope at a magnification of 10,000 to 50,000 times and measuring the particle diameter on the print or the area at the time of projection (the number of measured particles is not measured). Discrimination shall be over 1000).

A particularly preferred highly monodisperse emulsion is one in which the breadth of distribution defined by (grain size standard deviation / average grain diameter) × 100 = breadth of distribution (%) is 20% or less. Here, the average particle size and the particle size standard deviation are obtained from ri defined above.

A monodisperse emulsion is prepared by adding a water-soluble silver salt solution and a water-soluble halide solution to pAg and p in a gelatin solution containing seed grains.
It can be obtained by adding by the double jet method under the control of H 2. To determine the addition rate, refer to JP-A-54
-48521 and 58-49938 can be referred to. As a method for obtaining a more advanced monodisperse emulsion, the growth method in the presence of a tetrazaindene compound disclosed in JP-A-60-122935 can be applied.

The silver halide in the present invention can be optically sensitized with a sensitizing dye which is usually used.
It is also useful for the silver halide emulsion of the present invention to use a combination of sensitizing dyes used for supersensitization such as an internal latent image type silver halide emulsion and a negative type silver halide emulsion. Regarding sensitizing dyes, Research Disclosure (hereinafter abbreviated as RD) No. 15162 and
Reference can be made to No. 17643.

In the present invention, the yellow image forming layer, the magenta image forming layer and the cyan image forming layer have different spectral sensitivities. This is at least 4 times higher than the spectral sensitivities of the other layers at any wavelength in the spectral sensitivity range of each layer.
It suffices that there be a wavelength exhibiting a double sensitivity, and preferably a wavelength exhibiting at least a 8 times sensitivity.

In the present invention, for the black image forming layer, any conventionally known method can be used as long as a black image is formed after development. For example, an image formed by leaving a silver image after development processing can be used, or a black coupler that forms a black image by color development can be used. Further, a black image can be obtained by mixing a yellow coupler, a magenta coupler and a cyan coupler.

In the present invention, the black image forming layer is in common with the respective spectral sensitivity regions of the yellow image forming silver halide emulsion layer, the magenta image forming silver halide emulsion layer and the cyan image forming silver halide emulsion layer. It is preferable to have a spectral sensitivity region having a portion. That is, the black image forming layer of the present invention has sensitivity to light having any wavelength in the spectral sensitivity wavelength range of the yellow image forming layer, and has any wavelength in the spectral sensitivity wavelength range of the magenta image forming layer. Of the cyan image forming layer, and also has sensitivity to light of any wavelength in the spectral sensitivity wavelength range of the cyan image forming layer.

In one preferred embodiment of the present invention, for example, the yellow image-forming layer contains a blue-sensitive emulsion, the magenta image-forming layer contains a green-sensitive emulsion, and the cyan image-forming layer contains a red-sensitive emulsion. The emulsion contains an emulsion, and the black image forming layer contains an emulsion sensitive to any of blue light, green light and red light.

Such an emulsion can be realized by selecting a spectral sensitizing dye. For example, an emulsion having sensitivity to any of blue light, green light, and red light as described above can be prepared, for example, by combining an emulsion having sensitivity to blue with a green-sensitizing dye and a red-sensitizing dye. .

The yellow image forming layer, the magenta image forming layer, the cyan image forming layer and the black image forming layer of the present invention are laminated and coated on a support, but the order from the support may be any order. One preferred embodiment is, for example, from the side closer to the support, a cyan image forming layer, a magenta image forming layer,
It becomes a yellow image forming layer and a black image forming layer. In addition to these, an intermediate layer, a filter layer, a protective layer and the like can be arranged as required.

In the present invention, each wavelength before development processing is 450n.
As a method of setting the reflection density at m, 550 nm, and 700 nm to 0.8 or more, a method of adding water-soluble dyes of yellow, magenta, and cyan, and / or a method of providing an antihalation layer in the lowermost layer are preferable.

Examples of the water-soluble dyes of yellow, magenta and cyan used in the present invention include oxonol dyes, cyanine dyes, merocyanine dyes, azo dyes, anthraquinone dyes and allylidene dyes. Particularly preferable dyes are oxonol dyes and merocyanine dyes from the viewpoints of decomposability and non-color sensitization to silver halide emulsions.

Examples of oxonol dyes include US Pat.
7,225, JP-A-48-42826, 49-5125, 49-99620
No. 50, No. 50-91627, No. 51-77327, No. 55-120660, No. 5
8-24139, 58-143342, 59-38742, 59-11164
0, 59-111641, 59-168438, 60-218641,
62-31916, 62-66275, 62-66276, 62-185
No. 755, No. 62-273527, No. 63-139949, etc. As a merocyanine dye, Japanese Patent Laid-Open No.
Issue 58-120245, Issue 63-35437, Issue 63-35438, Issue 6
3-34539, 63-58437, etc.

Typical specific examples of the oxonol dye and the merocyanine dye are shown below, but the invention is not limited thereto.

(Water-soluble yellow dye)

[0054]

[Chemical 1]

[0055]

[Chemical 2]

[0056]

[Chemical 3]

[0057]

[Chemical 4]

[0058]

[Chemical 5]

(Water-soluble magenta dye)

[0060]

[Chemical 6]

[0061]

[Chemical 7]

[0062]

[Chemical 8]

[0063]

[Chemical 9]

[0064]

[Chemical 10]

(Water-soluble cyan dye)

[0066]

[Chemical 11]

[0067]

[Chemical 12]

[0068]

[Chemical 13]

[0069]

[Chemical 14]

[0070]

[Chemical 15]

Typical specific examples of water-soluble dyes other than oxonol dyes and merocyanine dyes are shown below, but the present invention is not limited thereto.

[0072]

[Chemical 16]

[0073]

[Chemical 17]

[0074]

[Chemical 18]

[0075]

[Chemical 19]

The amount of the water-soluble dye used in the present invention is 450 nm, 550 nm, 700 n at each wavelength before development processing of the color light-sensitive material.
Add an amount such that the reflection density at m is 0.8 or more. The reflection densities are each preferably in the range 0.9 to 1.2.

The water-soluble dye in the present invention is contained in the light-sensitive silver halide emulsion layer and / or the non-light-sensitive layer.

The water-soluble dye of the present invention is used in combination of yellow, magenta and cyan water-soluble dyes, and each of the yellow, magenta and cyan water-soluble dyes is used alone or in combination of two or more kinds.

The lowermost antihalation layer in the present invention contains a compound that absorbs light. As the compound that absorbs light, various organic compounds and inorganic compounds that have the action can be used, but inorganic compounds are preferable.

As the inorganic compound, colloidal silver, colloidal manganese and the like are preferable, but colloidal silver is particularly preferable. Since these colloidal metals have good decolorizing properties, they are also effective when applied to the color light-sensitive material of the present invention. The colloidal silver described above, for example, gray colloidal silver, is obtained by reducing silver nitrate in gelatin in gelatin in the presence of a reducing agent such as hydroquinone, phenidone, ascorbic acid, pyrogallol or dextrin, and then neutralizing and cooling. It is obtained by setting gelatin and then removing the reducing agent and unnecessary salts by the noodle washing method. When reducing with alkaline,
When colloidal silver particles are produced in the presence of an azaindene compound or a mercapto compound, a colloidal silver dispersion liquid having uniform particles can be obtained.

The amount of colloidal silver, converted to silver, is preferably 0.13 g / m ² or less, more preferably 0.07 g.
/ M ² or less.

The fog treatment in the present invention can be carried out by using a compound which gives an overall exposure or produces a fog nucleus, that is, a fog agent.

The entire surface exposure is carried out by immersing the imagewise exposed light-sensitive material in a developing solution or other aqueous solution or moistening it and then uniformly exposing the whole surface. The light source used here may be any light source as long as it has light in the photosensitive wavelength region of the photographic light-sensitive material,
Further, high illuminance light such as flash light may be applied for a short time, or weak light may be applied for a long time.

The total exposure time can be varied over a wide range depending on the photographic light-sensitive material, the development processing conditions, the type of light source used, etc. so as to finally obtain the best positive image.

Further, it is most preferable that the exposure amount of the whole surface exposure gives a predetermined range of exposure amount in combination with the photosensitive material. Usually, if the exposure amount is excessively increased, the minimum density is increased or desensitized, and the image quality tends to be deteriorated.

Next, the fog agent preferably used in the present invention will be described.

A wide variety of compounds can be used as the fog agent used in the present invention. The fog agent only needs to be present at the time of development processing. For example, in the constituent layers other than the support of the light-sensitive material (among others, among them). It is preferably contained in a silver halide emulsion layer) or in a developing solution or a processing solution prior to the developing processing. The amount used can be varied over a wide range according to the purpose. The preferable amount added is 1 to 1,500 mg, preferably 10 to 10 mg per mol of silver halide when added to the silver halide emulsion layer. 1,0
It is 00 mg. When it is added to a processing solution such as a developing solution, the preferable addition amount is 0.01 to 5 g / l, particularly preferably 0.05 to 1 g.
/ L.

Examples of the fogging agent used in the present invention include hydrazines described in US Pat. Nos. 2,563,785 and 2,588,982 or hydrazides or hydrazine compounds described in US Pat. No. 3,227,552; US Pat.
5, 3,718,479, 3,719,494, 3,734,738 and 3,759,901, heterocyclic quaternary nitrogen salt compounds; further silver halides such as acylhydrazinophenylthioureas described in U.S. Pat. No. 4,030,925. Examples thereof include compounds having an adsorption group on the surface. Further, these fogging agents can be used in combination. For example, RD1516 described above
No. 2 describes that a non-adsorption type fogging agent is used in combination with an adsorption type fogging agent, and this combination technique is also effective in the present invention. In the present invention, both an adsorption type and a non-adsorption type can be used, or they can be used in combination.

Specific examples of useful fogging agents include hydrazine hydrochloride, 4-methylphenylhydrazine hydrochloride, 1-acetyl-2-phenylhydrazine, 1-formyl-2- (4-methylphenyl) hydrazine, 1- Hydrazine compounds such as methylsulfonyl-2-phenylhydrazine, 1-methylsulfonyl-2- (3-phenylsulfonamidophenyl) hydrazine, 1-benzoyl-2-phenylhydrazine, formaldehydephenylhydrazine; 3- (2-formylethyl) -2-methylbenzothiazolium bromide, 3- (2-acetylethyl) -2-benzyl-5-phenylbenzoxazolium bromide, 3- (2-acetylethyl) -2-benzylbenzoselenazolium bromide, 2-Methyl-3- [3- (phenylhydrazino) propyl] benzothiazolium bromide, 1,2
-Dihydro-3-methyl-4-phenylpyrido [2,1-b] benzothiazolium bromide, 1,2-dihydro-3-methyl-4-phenylpyrido [2,1-b] benzoselenazolium bromide,
4,4'-Ethylenebis (1,2-dihydro-3-methylpyrido [2,1
-b] N-substituted quaternary cycloammonium salts such as benzothiazolium bromide; 5- (3-ethyl-2-benzothiazolinylidene) -3- [4- (2-formylhydrazino) phenyl] Rhodanine, 1,3-bis [4- (2-formylhydrazino) phenyl] thiourea, 7- (3-ethoxythiocarbonylaminobenzamide) -9-methyl-10-propargyl-1,2,3,4- Examples thereof include latrahydroacridinium trifluoromethanesulfonate and 1-formyl-2- [4- {3- (2-methoxyphenyl) ureido} phenyl] hydrazine.

The light-sensitive material having a silver halide emulsion layer according to the present invention is directly exposed to light after imagewise exposure or is subjected to development treatment in the presence of a fogging agent to directly form a positive image.

As the developer that can be used in the developer used for developing the light-sensitive material according to the present invention, a conventional silver halide developer, for example, polyhydroxybenzenes such as hydroquinone, aminophenols and 3-pyrazolidone can be used. , Ascorbic acid and its derivatives, reductones, phenylenediamines, etc., or a mixture thereof. Specifically, hydroquinone, aminophenol, N-methylaminophenol, 1-phenyl-3-pyrazolidone, 1-phenyl-4,4-dimethyl-3-pyrazolidone, 1-
Phenyl-4-methyl-4-hydroxymethyl-3-pyrazolidone, ascorbic acid, N, N-diethyl-p-phenylenediamine, diethylamino-o-toluidine, 4-amino-3-methyl-N-ethyl-N- ( β-methanesulfonamidoethyl) aniline, 4-amino-3-methyl-N-ethyl-N- (β-hydroxyethyl) aniline, 4-amino-N-ethyl-N- (β-hydroxyethyl) aniline, etc. Can be mentioned. It is also possible to incorporate these developers in the emulsion in advance so that they act on the silver halide during immersion in a high pH aqueous solution.

The developer used in the present invention may further contain a specific antifoggant and development inhibitor, or these developer additives may be optionally incorporated in the constituent layers of the photographic light-sensitive material. Is also possible.

Known photographic additives can be used in the light-sensitive material of the present invention.

Known photographic additives include, for example, the compounds described in RD17643 and RD18716 shown below.

Additives RD17643 RD18716 Page Classification Page Classification Chemical sensitizer 23 III 648 Upper right sensitizing dye 23 IV 648 Upper right development accelerator 29 XXI 648 Upper right antifoggant 24 VI 649 Lower right stabilizer Stabilization 〃 Color contamination prevention Agent 25 VII 650 Left-right Image stabilizer 25 VII UV absorber 25-26 VII 649 Right-650 Left whitening agent 24 V Curing agent 26 X 651 Right Coating aid 26-27 XI 650 Right surfactant 26- 27 XI 650 Right Plasticizer 27 XII 650 Right Sliding agent 〃 〃 Static inhibitor 〃 〃 Matting agent 28 XVI 650 Right binder 29 IX 651 Right A dye-forming coupler that undergoes a coupling reaction to form a dye can be used. The dye-forming couplers are usually selected for each emulsion layer so that a dye that absorbs the light in the light-sensitive spectrum of the emulsion layer is formed, and in the blue-sensitive emulsion layer the yellow dye-forming coupler is the green dye. A magenta dye forming coupler is used in the sensitive emulsion layer and a cyan dye forming coupler is used in the red sensitive emulsion layer. However, the color light-sensitive material may be produced by a method different from the above combination depending on the purpose.

These dye-forming couplers preferably have a group called a ballast group having a carbon number of 8 or more, which makes the coupler non-diffusible, in the molecule. Also, these dye-forming couplers need only reduce 4 molecules of silver ions in order to form 1 molecule of dye, but they need only reduce 2 molecules of silver ion even if they are 4 equivalence. Either of two equivalence may be used. Releases a development inhibitor along with development, releases a development inhibitor at the same time as a DIR coupler that improves image sharpness and image graininess, and produces a colorless compound by coupling reaction with an oxidized product of a developing agent. DIR compounds may be used.

In the DIR coupler and DIR compound used, an inhibitor was directly bound to the coupling position, and an inhibitor was bound to the coupling position via a divalent group, and they were separated by the coupling reaction. Those which are bonded so as to release the inhibitor by intramolecular nucleophilic reaction, intramolecular electron transfer reaction and the like (referred to as timing DIR coupler and timing DIR compound) are included.

A colorless coupler (also referred to as a competing coupler) which undergoes a coupling reaction with an oxidized product of an aromatic primary amine developer but does not form a dye can be used in combination with the dye-forming coupler.

As the yellow dye forming coupler, known acylacetanilide type couplers can be preferably used. Among these, benzoylacetanilide compounds and pivaloylacetanilide compounds are advantageous.

As the magenta dye-forming coupler, known 5-pyrazolone-based couplers, pyrazolobenzimidazole-based couplers, pyrazoloazole-based couplers, open-chain acylacetonitrile-based couplers, indazolone-based couplers and the like can be used.

As the magenta coupler in the present invention, a magenta coupler represented by the following general formula [MI] is particularly preferable.

[0102]

[Chemical 20]

In the formula, Z represents a nonmetallic atom group necessary for forming a nitrogen-containing heterocycle, and the ring formed by Z may have a substituent. X represents a hydrogen atom or a group capable of splitting off upon reaction with an oxidized product of a color developing agent, and R represents a hydrogen atom or a substituent.

In the general formula [M-I], the substituent represented by R is not particularly limited, but is typically alkyl, aryl, anilino, acylamino, sulfonamide, alkylthio, arylthio, alkenyl, cycloalkyl. Other groups such as halogen atom and cycloalkenyl, alkynyl, heterocycle, sulfonyl, sulfinyl, phosphonyl, acyl, carbamoyl, sulfamoyl, cyano, alkoxy, aryloxy, heterocycleoxy, siloxy, acyloxy, and the like. Carbamoyloxy, amino, alkylamino, imide, ureido, sulfamoylamino, alkoxycarbonylamino, aryloxycarbonylamino, alkoxycarbonyl, aryloxycarbonyl, heterocyclic thio groups, and spiro formation Compound residues, bridged hydrocarbon compound residues and the like are also included.

The substituent represented by R, the group represented by X which can be released by the reaction with the oxidation product of the color developing agent, the nitrogen-containing heterocycle formed by Z and the ring formed by Z may have. The preferred range and specific examples of the substituents, and the preferred range of the magenta coupler represented by the general formula [MI] are the same as those described in EP 0327272, page 5, line 23 to page 8, line 52. ..

Typical specific examples of the magenta coupler represented by the general formula [MI] are shown below.

[0107]

[Chemical 21]

[0108]

[Chemical formula 22]

[0109]

[Chemical formula 23]

[0110]

[Chemical formula 24]

As another specific example, European Patent Publication 0273
Compounds M-1 to M-6 described in No. 712, pages 6 to 21.
1 and Compound 1 described in No. 0235913, pages 36 to 92
~ 223 other than the above representative examples.

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

As the cyan dye-forming coupler, known phenol type, naphthol type or imidazole type couplers can be used. Typical examples are phenol-based couplers substituted with an alkyl group, an acylamino group, or a ureido group, naphthol-based couplers formed from a 5-aminonaphthol skeleton, and 2-equivalent naphthol-based couplers having an oxygen atom introduced as a leaving group. To be done.

The support which can be used in the light-sensitive material of the present invention includes, for example, RD17643, page 28 and RD18716 described above.
Those described on page 647 can be mentioned. Suitable supports are polymer films, papers and the like, which may be treated for enhancing the adhesiveness, antistatic property and the like.

[0115]

The present invention will be described in detail below with reference to examples, but the present invention is not limited thereto.

Example 1 (Preparation of Emulsion EM-1) While controlling the aqueous solution containing ossein gelatin at 40 ° C., the aqueous solution containing ammonia and silver nitrate, potassium bromide and sodium chloride (KB in molar ratio).
An aqueous solution containing r: NaCl = 95: 5) was simultaneously added by the control double jet method to obtain a cubic silver chlorobromide core emulsion having a grain size of 0.30 μm. At that time, pH and pAg were controlled so as to obtain a cubic particle shape. An aqueous solution containing ammonia and silver nitrate was further added to the obtained core emulsion, and potassium bromide and sodium chloride (molar ratio KBr: NaCl = 4
An aqueous solution containing 0:60) was simultaneously added by the control double jet method to form a shell until the average particle size became 0.42 μm. At that time, pH and pAg were controlled so as to obtain a cubic particle shape.

After washing with water to remove water-soluble salts, gelatin was added to obtain an emulsion EM-1. The breadth of distribution of emulsion EM-1 was 8%.

(Preparation of Blue Sensitive Emulsion EM-B) After sensitizing EM-1 with sensitizing dye D-1, 600 mg of stabilizer T-1 was added per mol of silver to give blue sensitive emulsion EM-B. It was made.

(Preparation of Green Sensitive Emulsion EM-G) A green sensitive emulsion EM-G was prepared in the same manner as the blue sensitive emulsion except that the sensitizing dye D-2 was added to EM-1 for color sensitization.

(Preparation of Red Sensitive Emulsion EM-R) A red sensitive emulsion EM-R was prepared in the same manner as the blue sensitive emulsion except that the sensitizing dye D-3 was added to EM-1 for color sensitization.

(Preparation of pan-sensitive emulsion EM-P) Pan-sensitive emulsion was prepared in the same manner as the blue-sensitive emulsion except that sensitizing dyes D-1, D-2 and D-3 were added to EM-1 for color sensitization. Emulsion EM-P was prepared.

(Preparation of Infrared Sensitive EM-I) A pan-sensitive emulsion EM-I was prepared in the same manner as the blue-sensitive emulsion except that the sensitizing dye D-4 was added to EM-1 for color sensitization. ..

T-1: 4-hydroxy-6-methyl-1,3,3a, 7
-Tetrazaindene

[0124]

[Chemical 25]

Using the above EM-B, EM-G and EM-R, the 1st to 8th layers were coated in the following constitution on the surface of a support laminated on both sides with polyethylene. Sample 10 was prepared using SA-1 and SA-2 as coating aids and H-1 as a hardening agent. Coating amount is g
/ M ²

Layer composition Coating amount Eighth layer Gelatin 0.78 (UV absorbing layer) UV absorber (UV-1) 0.065 UV absorbing layer (UV-2) 0.195 Solvent (SO-2) 0.1 Colloidal silica 0.03 Seventh layer Gelatin 1.43 (Blue sensitive layer) Blue sensitive emulsion EM-B (Amount of coated silver) 0.50 Yellow coupler (YC-1) 0.82 Anti-staining agent (AS-2) 0.025 Solvent (SO-1) 0.82 Inhibitor (ST-1, ST-2, T-1) Sixth layer Gelatin 0.54 (Intermediate layer) Anti-color mixing agent (AS-1) 0.055 Solvent (SO-2) 0.072 Fifth layer Gelatin 0.42 (Yellow yellow colloidal silver 0.10 Colloidal silver layer) Color mixing prevention Agent (AS-1) 0.04 Solvent (SO-2) 0.049 Polyvinylpyrrolidone (PVP) 0.047 Fourth layer Gelatin 0.54 (Intermediate layer) Color mixture inhibitor (AS-1) 0.055 Solvent (SO-2) 0.072 Third Layer gelatin .43 (green-sensitive layer) green-sensitive emulsion EM-G (amount of coated silver) 0.50 magenta coupler (MC-1) 0.25 anti-staining agent (AS-2) 0.019 solvent (SO-1) 0.31 inhibitor (ST-1, ST-2, T-1) Second layer gelatin 0.75 (intermediate layer) Color mixing inhibitor (AS-1) 0.055 Solvent (SO-2) 0.072 First layer gelatin 1.38 (red sensitive layer) Red sensitive emulsion EM-R ( Coated silver amount) 0.30 Cyan coupler (CC-1) 0.44 Solvent (SO-1) 0.31 Anti-staining agent (AS-2) 0.015 Inhibitor (ST-1, ST-2, T-1) Same as Sample 10 above. The EM-B, EM-G, EM
A color light-sensitive material sample 20 having the following constitution was prepared using -R and EM-P. The applied amount is shown in g / m ² .

Layer composition Coating amount 10th layer Gelatin 0.78 (UV absorbing layer) UV absorber (UV-1) 0.065 UV absorbing layer (UV-2) 0.195 Solvent (SO-2) 0.10 Colloidal silica 0.03 9th layer Gelatin 1.05 (pan-sensitive layer) Pan-sensitive emulsion EM-P (coating silver amount) 0.30 Yellow coupler (YC-1) 0.21 Magenta coupler (MC-1) 0.063 Cyan coupler (CC-1) 0.110 Anti-stain agent (AS-2) ) 0.019 Solvent (SO-1) 0.615 Eighth layer Gelatin 0.75 (Intermediate layer) Anti-color mixing agent (AS-1) 0.055 Solvent (SO-2) 0.072 Seventh layer Gelatin 1.14 (Blue sensitive layer) Blue-sensitive emulsion EM-B (Amount of coated silver) 0.4 Yellow coupler (YC-1) 0.656 Anti-stain agent (AS-2) 0.02 Solvent (SO-1) 0.656 Inhibitor (ST-1, ST-2, T-1) Sixth layer gelatin 0.54 (Intermediate layer) Anti-color mixing agent (AS 1) 0.055 Solvent (SO-2) 0.072 5th layer Gelatin 0.42 (YC layer) Yellow colloidal silver 0.1 Anti-color mixing agent (AS-1) 0.04 Solvent (SO-2) 0.049 Polyvinylpyrrolidone (PVP) 0.047 4th layer Gelatin 0.54 (Intermediate layer) Anti-color mixing agent (AS-1) 0.055 Solvent (SO-2) 0.072 Third layer Gelatin 1.14 (Green sensitive layer) Green sensitive emulsion EM-G (Coating silver amount) 0.40 Magenta coupler (MC-1) 0.20 Anti-staining agent (AS-2) 0.012 Solvent (SO-1) 0.248 Inhibitor (ST-1, ST-2, T-1) Second layer Gelatin 0.75 (Intermediate layer) Anti-color mixing agent (AS-1) 0.055 Solvent (SO-2) 0.072 First layer Gelatin 1.10 (Red-sensitive layer) Red-sensitive emulsion EM-R (Amount of coated silver) 0.24 Cyan coupler (CC-2) 0.352 Solvent (SO-1) 0.248 Anti-stain agent (AS-) 2) 0.012 inhibitor (ST-1, ST- 2, T-1) In the same manner as in Sample 10, EM-B, EM-G, EM-R
And EM-I were used to prepare a color light-sensitive material sample 30 having the following constitution. The applied amount is shown in g / m ² .

Layer composition Coating amount 10th layer Gelatin 0.78 (UV absorbing layer) UV absorber (UV-1) 0.065 UV absorbing layer (UV-2) 0.195 Solvent (SO-2) 0.10 Colloidal silica 0.03 9th layer Gelatin 1.14 (Blue-sensitive layer) Blue-sensitive emulsion EM-B (Amount of coated silver) 0.4 Yellow coupler (YC-1) 0.656 Anti-stain agent (AS-2) 0.02 Solvent (SO-1) 0.656 Inhibitor (ST-1, ST-2, T-1) Eighth layer Gelatin 0.54 (intermediate layer) Color mixture inhibitor (AS-1) 0.055 Solvent (SO-2) 0.072 Seventh layer gelatin 0.42 (YC layer) Yellow colloidal silver 0.10 Color mixture inhibitor ( AS-1) 0.04 Solvent (SO-2) 0.049 Polyvinylpyrrolidone (PVP) 0.047 6th layer Gelatin 0.54 (Intermediate layer) Color mixture inhibitor (AS-1) 0.055 Solvent (SO-2) 0.072 5th layer Gelatin 1.14 ( Green layer) Green milk Agent EM-G (Amount of coated silver) 0.40 Magenta coupler (MC-1) 0.20 Anti-staining agent (AS-2) 0.0152 Solvent (SO-1) 0.248 Inhibitor (ST-1, ST-2, T-1) No. 4-layer gelatin 0.75 (intermediate layer) Anti-color mixing agent (AS-1) 0.055 Solvent (SO-2) 0.072 Third layer gelatin 1.10 (red-sensitive layer) Red-sensitive emulsion EM-R (coated silver amount) 0.24 Cyan coupler (CC) -2) 0.352 Solvent (SO-1) 0.248 Anti-staining agent (AS-2) 0.012 Inhibitor (ST-1, ST-2, T-1) Second layer Gelatin 0.75 (Intermediate layer) Anti-color mixing agent (AS- 1) 0.055 Solvent (SO-2) 0.072 First layer Gelatin 1.05 (Infrared photosensitive layer) Infrared photosensitive emulsion EM-I (coated silver amount) 0.30 Yellow coupler (YC-1) 0.21 Magenta coupler (MC-1) 0.063 Cyan coupler (CC-1) 0.110 Anti-staining agent ( AS-2) 0.019 Solvent (SO-1) 0.615 The additives used for sample preparation are as follows.

SA-1: sulfosuccinic acid di (2-ethylhexyl) ester sodium SA-2: sulfosuccinic acid di (2,2,3,3,4,4,5,5-octafluoropentyl) ester Sodium H-1: 2,4-dichloro-6-hydroxy-s-triazine / sodium AS-1: 2,5-di-t-octylhydroquinone AS-2: 2,5-di-t-butylhydroquinone SO- 1: Trioctyl phosphate SO-2: Dioctyl phthalate ST-1: 1- (3-acetamido) phenyl-5-mercaptotetrazole ST-2: N-benzyladenine

[0130]

[Chemical formula 26]

[0131]

[Chemical 27]

Samples 11 thus obtained were added with a water-soluble dye, Samples 20 were provided with an antihalation layer as the lowermost layer and / or samples were added with a water-soluble dye. 21 to 24, and sample 31 in which a water-soluble dye was added to sample 30, were prepared as shown in Table 1.

[0133]

[Table 1]

Samples 10 and 11 obtained as described above were exposed under the exposure condition -1 shown below by contacting a black plate and a cyan plate among halftone originals. Next, the black plate and the magenta plate were brought into close contact with the sample, and the exposure conditions shown below-2
Exposed. Further, the black plate and the yellow plate were brought into close contact with the sample and exposed under the exposure condition-3 shown below.

Next, samples 20 to 23 were sequentially exposed to exposure conditions -1 to 3 as in samples 10 and 11.

Further, the samples 30 and 31 were sequentially exposed under the exposure conditions -1 to 3 in the same manner as the samples 10 and 11, and only the black plate of the original document was brought into close contact, and the exposure conditions-4 shown below were used. Exposed.

The exposed light-sensitive material thus obtained was processed by the following development processing steps, the density of the dye image obtained was measured, and further obtained from the halftone original document 4th plate. Compared with the proof density. Moreover, the image quality of the obtained halftone image was evaluated. The concentration was measured with PD-65 manufactured by Konica Corporation.

The halftone dot image quality was evaluated according to the following scale.

A color proof having halftone dot image quality matching the printed matter. A color proof in which the color balance of the printed matter is deviated. A color proof in which small dots are crushed. × ・ ・ ・ Color proof with small dots and large dots crushed on printed matter (exposure condition-1) When white light is exposed through each light-sensitive material through a red filter (Ratten No. 26) and an ND filter. Adjust the ND filter density and expose for 0.5 seconds with the minimum exposure amount that minimizes the red light density after the development process described below.

(Exposure condition-2) Each of the light-sensitive materials was passed through a green filter (Ratten No. 58) and an ND filter to adjust the ND filter density when white light was exposed. With minimum exposure
Expose for 0.5 seconds.

(Exposure condition-3) Each of the light-sensitive materials was passed through a blue filter (Ratten No. 47B) and an ND filter, and when the white light was exposed, the ND filter density was adjusted so that the green light density after the following development treatment was Expose for a minimum of 0.5 seconds with the minimum exposure.

(Exposure condition-4) The ND filter density was adjusted when the tungsten light was exposed through the infrared filter and the ND filter to the samples which were sequentially exposed with the respective light-sensitive materials under the above exposure conditions-1 to 3 Then, it is exposed for 0.5 seconds with the minimum exposure amount that minimizes the visible light density after the development processing described below. Exposure condition only through the infrared filter-
Set to 4.

A daylight fluorescent lamp was used as a light source for exposure conditions-1 to 3.

Processing was carried out according to the following processing steps to obtain a photographic image. However, the fog exposure was carried out with the surface of the photosensitive material uniformly exposed through the layer of the developing solution having a thickness of 3 mm while being immersed in the developing solution.

Processing Step-1 Temperature Time Immersion (Developer) 37 ° C 12 seconds Fog exposure-12 seconds (1 lux) Image 37 ° C 95 seconds Bleach-fixing 35 ° C 45 seconds Stabilization 25-30 ° C 90 seconds Dry 60-85 ° C 40 seconds Treatment liquid composition is as follows.

(Color developer) Benzyl alcohol 15.0 ml Cerium sulfate 0.015 g Ethylene glycol 8.0 ml Potassium sulfite 2.5 g Potassium bromide 0.6 g Sodium chloride 0.2 g Potassium carbonate 25.0 g T-1 0.1 g Hydroxylamine sulfate 5.0 g Diethylenetriamine 5 Sodium acetate 2.0g 4-Amino-N-ethyl-N- (β-hydroxyethyl) aniline sulfate 4.5g Optical brightener (4,4'-diaminostilbenedisulfonic acid derivative) 1.0g Potassium hydroxide 2.0g Diethylene glycol 15.0 Adjust the pH to 10.15 by adding ml water to bring the total volume to 1000 ml.

(Bleach-fixing solution) Diethylenetriamine-5 ferric ammonium acetate 90.0 g Diethylenetriamine-5-acetate 3.0 g Ammonium thiosulfate (70% aqueous solution) 180.0 ml Ammonium sulfite (40% aqueous solution) 27.5 ml 3-Mercapto-1,2,4- Triazole 0.15g Adjust pH to 7.1 with potassium carbonate or glacial acetic acid, and add water to make 1000ml.

(Stabilizing Solution) o-Phenylphenol 0.3 g Potassium sulfite (50% aqueous solution) 12 ml Ethylene glycol 10.0 g 1-Hydroxyethylidene-1,1-diphosphonic acid 2.5 g Bismuth chloride 0.2 g Zinc sulfate heptahydrate 0.7 g Ammonium hydroxide (28% aqueous solution) 2.0 g Polyvinylpyrrolidone (K-17) 0.2 g Fluorescent brightener (4,4'-diaminostilbenedisulfonic acid derivative) 2.0 g Add water to make 1000 ml, and add ammonium hydroxide or Adjust the pH to 7.5 with sulfuric acid.

The stabilization treatment was a countercurrent system having a two-tank construction.

The results obtained are shown in Table 2.

[0151]

[Table 2]

As is clear from the results of Table 2, the samples 21 to 24 of the present invention have a density close to that of proof printing (printing) and a good halftone dot image quality (halftone dot reproducibility). Further, since the exposure is performed three times as in the conventional case, there is no problem in workability. On the contrary,
It was found that the sample 31 of the present invention requires a large number of exposures because it requires four exposures.

Samples 20 and 30 have good densities, but are inferior in terms of halftone dot image quality.

Example 2 Example 1 was repeated except that the emulsion used was changed from EM-1 to EM-2 below, and the effect of the present invention was obtained.

(Preparation of emulsion EM-2) Equimolar silver nitrate aqueous solution and potassium bromide aqueous solution were added to gelatin aqueous solution at 50 ° C.
Simultaneous addition by the double jet method over 50 minutes,
An emulsion consisting of cubic silver bromide grains having an average grain size of 0.3 μm was obtained. To this emulsion, 6.5 mg of sodium thiosulfate and 3 mg of potassium chloroaurate were added per 1 mol of silver, and the mixture was chemically ripened at 70 ° C. for 70 minutes, followed by further addition of an aqueous silver nitrate solution and sodium chloride.
-A potassium bromide mixed solution (molar ratio 1: 9) was added at the same time to prepare a cubic core / shell type emulsion consisting of a silver bromide core having an average particle size of 0.45 µm and a silver chlorobromide shell. After desalting with water, 2.0 mg of sodium thiosulfate and 1.0 mg of potassium chloroaurate per mol of silver were added to this emulsion, and the emulsion was heated to 60 ° C. for 50 minutes.
Direct positivity silver halide emulsion EM-
Got 2. The breadth of distribution of emulsion EM-2 was 12%.

Example 3 Using EM-1 used in Example 1, the following emulsion was prepared.

(Preparation of Green Sensitive Emulsion EM-1G) EM-1
After the color sensitization by adding sensitizing dye D-2, 600 mg of T-1 was added per mol of silver, and FA-1 and FA-2 were further added to silver 1.
A green-sensitive emulsion EM-1G was prepared by adding 8 × 10 ⁻⁵ mol and 5 × 10 ⁻⁴ mol, respectively, per mol.

(Preparation of Red Sensitive Emulsion EM-1R) EM-1
A red-sensitive emulsion EM-1R was prepared in the same manner as the green-sensitive emulsion except that the sensitizing dye D-3 was added to the mixture to carry out color sensitization.

(Preparation of Infrared Photosensitive Emulsion EM-1I) EM
An infrared-sensitive emulsion EM-1I was prepared in the same manner as the green-sensitive emulsion except that the sensitizing dye D-4 was added to -1 for color sensitization.

(Preparation of pan-sensitive emulsion EM-1P) EM-1
General Sensitive Emulsion EM-1P was prepared in the same manner as the green sensitive emulsion except that the sensitizing dyes D-2, D-3 and D-4 were added to the emulsion.
Was produced.

[0161]

[Chemical 28]

(Preparation of Sample 40) A color light-sensitive material sample 40 having the following constitution was prepared in the same manner as the sample 10 of Example 1 using the EM-1G, EM-1R, EM-1I and EM-1P. did. The coating amount is also shown in g / m ² .

Layer composition Coating amount Eighth layer Gelatin 0.78 (UV absorbing layer) UV absorber (UV-1) 0.065 UV absorbing layer (UV-2) 0.195 Solvent (SO-2) 0.10 Colloidal silica 0.03 Seventh layer Gelatin 1.05 (pan-sensitive layer) Pan-sensitive emulsion EM-1P (amount of coated silver) 0.30 Yellow coupler (YC-1) 0.21 Magenta coupler (MC-1) 0.063 Cyan coupler (CC-1) 0.110 Anti-stain agent (AS) -2) 0.019 Solvent (SO-1) 0.615 Sixth layer Gelatin 0.75 (Intermediate layer) Anti-color mixing agent (AS-1) 0.055 Solvent (SO-2) 0.072 Fifth layer Gelatin 1.14 (Green-sensitive layer) Green-sensitive emulsion EM -1G (Amount of coated silver) 0.40 Yellow coupler (YC-1) 0.656 Anti-stain agent (AS-2) 0.02 Solvent (SO-1) 0.656 Inhibitor (ST-1, ST-2, T-1) 4th layer Gelatin 0.75 (middle layer Anti-color mixing agent (AS-1) 0.055 Solvent (SO-2) 0.072 Third layer Gelatin 1.14 (Red-sensitive layer) Red-sensitive emulsion EM-1R (Amount of coated silver) 0.40 Magenta coupler (MC-1) 0.20 Anti-staining agent ( AS-2) 0.0152 Solvent (SO-1) 0.248 Inhibitor (ST-1, ST-2, T-1) Second layer Gelatin 0.75 (Intermediate layer) Color mixture inhibitor (AS-1) 0.055 Solvent (SO-2) ) 0.072 1st layer Gelatin 1.10 (infrared photosensitive layer) Infrared photosensitive emulsion EM-1I (amount of coated silver) 0.24 Cyan coupler (CC-3) 0.352 Solvent (SO-1) 0.248 Antistain agent (AS-2) 0.012 Inhibitors (ST-1, ST-2, T-1) In contrast to the sample 40 thus obtained, a sample in which an antihalation layer is provided as the lowermost layer and / or a sample 41 in which a water-soluble dye is added ~ 44 were prepared as shown in Table 3.

[0164]

[Table 3]

To the samples 40 to 44, a black plate and a cyan plate among original halftone dots were brought into close contact with each other and exposed under the exposure condition-5 shown below. Next, the black plate and the magenta plate were brought into close contact with the sample and exposed under exposure condition -6. Further, the black plate and the yellow plate were brought into close contact with the sample and exposed under exposure condition -7.

[0166] The processing steps shown below for the exposed sample-
2, the density of the obtained dye image is measured,
Further, it was compared with the density of the proof print obtained from the halftone dot original document 4th edition. In addition, the image quality of the obtained halftone dot image is set to
It evaluated similarly to. The concentration is measured by Konica PD
-65 was used.

(Exposure condition-5) When exposing samples 40 to 44 to tungsten light through an infrared filter and an ND filter, the ND filter density is adjusted to minimize the red density after development. Expose for 0.5 seconds.

(Exposure condition-6) When exposing samples 40 to 44 through a red filter (Ratten No. 26) and an ND filter with tungsten light, the ND filter density was adjusted to minimize the green density after development. With a minimum exposure amount of 0.
Expose for 5 seconds.

(Exposure condition-7) When exposing Samples 40 to 44 through a green filter (Ratten No.58) and an ND filter with tungsten light, the ND filter density was adjusted to minimize the blue density after development. With a minimum exposure amount of 0.
Expose for 5 seconds.

Processing Step-2 Temperature Time Image 37 ° C 130 seconds Bleaching fixing 35 ° C 45 seconds Stabilization treatment 25-30 ° C 90 seconds Drying 60-85 ° C 40 seconds Developer, bleach-fixing solution, stable The formulation of each treatment liquid of the chemical liquid is exactly the same as that used in Example 1.
The stabilization treatment was a countercurrent system with a two tank structure. The results obtained are shown in Table 4.

[0171]

[Table 4]

The results of Table 4 also show that the samples 41 to 44 of the present invention were used.
In the case of the conventional three times exposure, it was possible to obtain a density and a good halftone dot image quality similar to those of proof printing (printing). Sample 40 has good density, but is inferior in halftone dot image quality.

Example 4 Example 3 was repeated except that the emulsion was changed to EM-2 used in Example 2, and the effect of the present invention was obtained.

[0174]

By using the silver halide color photographic light-sensitive material of the present invention, a color proof having an improved degree of approximation of image quality (hue and sharpness) to a printed matter can be obtained by three exposures. ..

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Office reference number FI technical display location G03F 3/10 B 7818-2H

Claims (1)

[Claims] 1. A support comprising at least one yellow image-forming silver halide emulsion layer containing silver halide grains having different spectral sensitivities, at least one magenta image-forming silver halide emulsion layer, and at least one layer. A silver halide color photographic light-sensitive material having one cyan image-forming silver halide emulsion layer and at least one black image-forming layer containing silver halide grains, wherein the silver halide color photographic light-sensitive material is not developed. Each wavelength of 450nm, 550nm,
A silver halide color photographic light-sensitive material having a reflection density at 700 nm of 0.8 or more.