JPH0743868A - Silver halide color photographic sensitive material, color proof forming method and image forming method - Google Patents

Abstract

PURPOSE:To provide a silver halide color photographic sensitive material enhanced in halftone reproduction performance, especially, neutral reproduction performance, and reduced in fluctuation of such performances, even if conditions of exposure and development vary, and to provide a method for forming the color proof and the image. CONSTITUTION:The silver halide color photographic sensitive material having at least each one of yellow, magenta, and cyan image-forming silver halide emulsion layers on a support is characterized by having a photographic gradation of >=4 in at least one layer and a photographic monochromatic maximum density of >=1.5 and <2.0 in at least one of yellow, magenta, and cyan image.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a color image for proofing (color proofing) from a plurality of black and white halftone images obtained by color separation and halftone dot image conversion of a color photographic light-sensitive material, especially in a color plate making / printing process. The present invention relates to a silver halide color photographic light-sensitive material, a method for producing a color proof and an image forming method which can be preferably used for producing

[0002]

2. Description of the Related Art Color light-sensitive materials are generally subjected to color reproduction by a commonly used subtractive color method, and after imagewise exposure, the exposed silver halide grains are developed with a color developer,
The generated color developing agent oxidant and yellow, magenta,
A color image is obtained by reacting with cyan dye forming couplers and then bleach-fixing treatment, washing with water or stabilizing treatment.

For the color image thus obtained, it is important to improve the image quality, especially the color reproduction and the sharpness. In order to improve the color reproduction of color light-sensitive materials, JP-A-2-189543 and JP-A-3-9349 disclose yellow couplers having good color reproduction.

As a technique for improving the tightness of a black background, for example, JP-A-53-133432 and JP-A-55-59462 disclose an attempt to improve the reproducibility of a black background by using a color photographic light-sensitive material provided with a black image forming layer. Techniques for doing so are disclosed. According to this method, the black reproducibility is improved, but the sharpness is deteriorated, and it has been found that there are drawbacks such that the black reproducibility of fine lines such as black characters is not sufficient.

In addition, as a technique for improving sharpness, a technique using an anti-irradiation dye and a technique using black colloidal silver have been disclosed, but they are accompanied by a significant loss of sensitivity and a white background after treatment. There is a problem such as contamination remaining. For the purpose of preventing the deterioration of the sharpness of the reflective support, the filling rate of the white pigment in the resin coating layer of the base paper is increased, or a photosensitive material having a hydrophilic colloid layer containing the white pigment is disclosed in, for example, JP-A-54 -46035, JP-A-2-28640,
As disclosed in Japanese Examined Patent Publication No. 2-29203, Japanese Examined Patent Publication No. 59-820, and Japanese Unexamined Patent Publication No. 3-89340, the gradation of the legs changes when the replenishment amount is small and the processing conditions such as fatigue of the developer change. It was also found that there is a problem that the color tone of the highlight part changes.

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

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

The surprint method is a method of superposing colored images on a single support. As this method, a method of obtaining a colored image by toner development utilizing the adhesive property of a photopolymerizable material is disclosed in US Pat. No. 3,582,327. Nos. 3,607,264 and 3,620,726.

Further, after transferring to a support using a photosensitive coloring sheet and forming an image by exposure and development, another coloring sheet is laminated on this and a similar process is repeated to obtain a color proof. How to create is
It is known from 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. 59-97140. 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 by 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 color-separated halftone images is successively printed on one sheet of color paper by a method such as contact printing to develop a color. A color image formed by a dye formed from a coupler imagewise by color development after development is used as a proof image.

However, in this technique, yellow, magenta are particularly present in an image region having a small halftone dot area (small dot), an intermediate region having a halftone dot area (middle point), and an image region having a large halftone dot area (large dot). , And cyan have different dot reproducibility, which causes a problem in gray reproducibility when a neutral image is reproduced from yellow, magenta, and cyan dots. This is also a problem when the exposure amount changes or the processing conditions change, but it has been found that the problem of gray reproduction becomes particularly noticeable when the image exposure is performed by scanning exposure.

Japanese Patent Publication No. 1-50898 has an overall photographic gradation of 2.0.
Although a method for producing a color proof made of the above photographic light-sensitive material is disclosed, there is a problem that the gray balance of the small dots, the middle dots, and the large dots tends to change when the exposure amount changes. Further, it has been found that this problem is particularly remarkable when the exposure is performed by scanning exposure.

[0016]

Therefore, in view of the above problems, the object of the present invention is to improve the dot reproducibility, especially the neutral reproducibility of a silver halide color photographic light-sensitive material, and further, to fluctuate the exposure amount or to develop the image. It is an object of the present invention to provide a silver halide color photographic light-sensitive material and an image forming method which are improved so as to reduce variations in halftone dot reproducibility, particularly neutral reproducibility even when the processing conditions change.

Still another object of the present invention is to set the exposure condition when a color proof is prepared from halftone dot image information obtained by color separation and halftone image conversion using a silver halide color photographic light-sensitive material. Provided is a method for producing a color proof using the above silver halide color photographic light-sensitive material capable of obtaining a stable image in which variations in halftone dot reproducibility and variations in neutral reproducibility due to fluctuations and development processing conditions are improved. To do.

[0018]

The above object of the present invention has been achieved by the following constitution.

(1) At least one yellow image-forming silver halide emulsion layer on the support, at least one
A magenta image-forming silver halide emulsion layer, and a silver halide color photographic light-sensitive material having at least one cyan image-forming silver halide emulsion layer, at least one layer having a photographic gradation of 4 or more, and A silver halide color photographic light-sensitive material, wherein the maximum density of at least one single color of a yellow image, a magenta image or a cyan image is 1.5 or more and less than 2.0.

(2) The support has a light-reflecting layer containing at least one layer of a white pigment on the image forming layer side of the support, and the amount of the white pigment contained in the light-reflecting layer and the amount of the binder in the light-reflecting layer are contained in the light-reflecting layer. The silver halide color photographic light-sensitive material as described in 1 above, wherein the weight ratio is 20% or more.

(3) Color-separated yellow image information,
A silver halide color photographic light-sensitive material having a yellow image forming layer, a magenta image forming layer and a cyan image forming layer on a support based on halftone image information consisting of magenta image information, cyan image information and black image information. Is exposed to light and processed to form a yellow image component, a magenta image component, a cyan image component, and a black image component to form a color proof, the silver halide color photographic light-sensitive material is formed of the halogen according to 1 or 2 above. A method for producing a color proof, which comprises using a silver halide color photographic light-sensitive material.

(4) A silver halide color photographic light-sensitive material having a yellow image forming layer, a magenta image forming layer, and a cyan image forming layer on a support is exposed and processed based on image information to obtain a yellow image and a magenta image. image,
In the step of forming a cyan image to form a color image, the silver halide color photographic light-sensitive material is the silver halide color photographic light-sensitive material described in 1 or 2, and the exposure is performed by scanning exposure. A characteristic image forming method.

(5) The method for producing a color proof as described in the above item 3, wherein the exposure is performed by scanning exposure.

The present invention will be described below.

Photographic gradation in the present invention is defined as follows.

That is, in the photographic gradation, when the minimum density on the characteristic curve is expressed as Dmin, the point where the density is Dmin + 0.3 and the density is D =
The absolute value of the slope of the straight line connecting point 1.3 is the gradation of the photograph.

In the present invention, at least a photographic gradation corresponding to a yellow image, a photographic gradation corresponding to a magenta image, and a photographic gradation corresponding to a cyan image can be obtained, respectively, but in the present invention, any one of them can be obtained. The photo gradation is 4.0 or higher. It is preferable that one of the photographic gradations is 5.0 or more. Further, the photographic gradation of any of the yellow, magenta, and cyan images may be 4.0 or more, but preferably, the photographic gradation is 4.0 or more. This photographic gradation measurement is not a scanning exposure but a static exposure performed by a usual sensitometric method for exposure and evaluation.

In the present invention, as a method of increasing the photographic gradation to 4 or more, a conventionally known hardening technique can be used. For example, there is a method of narrowing the grain size distribution of silver halide emulsion grains. For example, in the case of color development, increase the color developing agent, reduce the amount of hydroxylamine or sulfite as a preservative, substitute with a weak reducing agent such as xylol or sorbit, or increase the amount of penetrant (such as benzyl alcohol). It can be obtained by increasing the pH, temperature, and development time of the processing liquid while adding a fogging inhibitor and a leg-cleaving agent. It is also effective to dope the silver halide grains with a metal ion having a contrast enhancing effect such as rhodium.

In the case of a light-sensitive material, a hydroquinone derivative capable of reducing an oxidized developing agent is effectively used in the light-sensitive material. Among them, the compound of the general formula [AO-I] or [AO-II] is particularly preferable as the compound that does not adversely affect the developability, hue, and the like and is effective in increasing the gradation of the base tone.

[0030]

[Chemical 1]

In the general formula [AO-I], R ¹ and R ² are each a hydrogen atom or an alkyl group having 8 or less carbon atoms (eg, methyl, ethyl, t-butyl, sec-hexyl), an alkoxy group (eg, methoxy). , Ethoxy, butoxy), alkylthio groups (eg methylthio, butylthio, octylthio), alkylamido groups (eg methanamide, propanamide, 2-ethylpentanoylamide),
R ³ represents a hydrogen atom or an alkyl group having 11 or less carbon atoms (eg, methyl, propyl, heptyl, undecyl). R
¹ , R ² is preferably an alkyl group having 6 or less carbon atoms, and R ³ is preferably an alkyl group having 7 or less carbon atoms.

The total carbon number of R ¹ , R ² and R ³ is 8-22, preferably 8-17.

In the general formula [AO-II], R ¹¹ , R ¹²
Represents a hydrogen atom or an alkyl group having 5 or less carbon atoms (for example, methyl, ethyl, i-propyl, butyl, t-butyl, pentyl, t-pentyl, neo-pentyl), and n is an integer of 1 to 3.

The compound of the general formula [AO-I] is disclosed in JP-A-52-14.
6235, JP-B-56-21145, 59-37497 and the like, can be synthesized according to the method described, for example, specific compounds such as JP-A No. 4-30164 page 67-69 I- (1) ~ I
-(12) can be mentioned.

Typical specific examples of the compound of the general formula [AO-II] are shown below, but the invention is not limited thereto.

[0036]

[Chemical 2]

The amount of the compound [AO-I] added is 2 × 10 5.
^{-8 to} 2 × 10 ^-2 mol / m ² , preferably 2 × 10 ^-7 to 2 × 10 ^-3
Mol / m ² , more preferably 2 × 10 ⁻⁶ to 2 × 10 ⁻⁴ mol / m ^2.
Is the range.

The addition amount of the compound [AO-II] is 0.
001 to 0.50 g / m ² is preferable, more preferably 0.005 to 0.
It is 20 g / m ² . The compounds may be used alone or in combination of two or more kinds. Further, a quinone derivative having 5 or more carbon atoms may be added to the compound [AO-II] for use. However, in any of these cases, the amount used is preferably in the range of 0.001 to 0.50 g / m ² as a whole.

In the present invention, the maximum density of at least one single color of yellow image, magenta image and cyan image is 1.
It is 5 or more and less than 2.0. The maximum density of a single color is measured as follows. As an example, a positive sensitive material having the following structure will be described as an example. The case where the yellow image-forming layer contains a blue-sensitive positive emulsion, the magenta image-forming layer contains a green-sensitive positive emulsion and the cyan image-forming layer contains a red-sensitive positive emulsion will be described. As for the monochromatic density of the yellow image, the yellow density obtained by developing the photosensitive material sequentially exposed under the following exposure conditions-1 and 2 is taken as the monochromatic density of the yellow image. Similarly, the monochromatic density of the magenta image is the magenta density obtained by developing the photosensitive material sequentially exposed under the following exposure conditions 1 and 3, and the monochromatic density of the cyan image is the photosensitive material sequentially exposed under the following exposure conditions 2 and 3. The cyan density obtained by the development processing is defined as the monochrome density of the cyan image.

(Exposure condition-1) When exposing the photosensitive material to white light through a red filter and an ND filter, the density of the ND filter is adjusted so that the red light density after development is minimized. Expose for 0.5 seconds.

(Exposure condition-2) When exposing the light-sensitive material to white light through a green filter and an ND filter, the density of the ND filter is adjusted so that the density of green light after development is minimized. Expose for 0.5 seconds.

(Exposure condition-3) When exposing the light-sensitive material to white light through a blue filter and an ND filter, the density of the ND filter is adjusted so that the density of blue light after development is minimized. Expose for 0.5 seconds.

In the present invention, yellow, magenta,
The maximum density of at least one single color of cyan is 1.5 or more and less than 2.0.

In the present invention, a light-reflecting layer containing at least one layer of a white pigment is provided on the image forming side of the support, and the amount of the white pigment contained in the light-reflecting layer is attached to the binder of the light-reflecting layer. A weight ratio of 20% or more is preferable.

The light-reflecting layer in the present invention may be one in which a polyolefin resin coating layer provided on the surface of the support contains a white pigment, or a hydrophilic colloid containing a white pigment provided on the support. It may be a layer.

The polyolefin resin coating layer as the light-reflecting layer in the present invention can preferably contain a white pigment in a weight ratio of 20 to 40% or more based on the coating amount of the binder of the light-reflecting layer. . When a resin that cures with actinic rays such as ultraviolet rays and electron beams is used as a binder, a white pigment having a relatively high content can be contained.

In the present invention, a hydrophilic colloid layer containing a white pigment can be preferably used as the light reflecting layer. In that case, the white pigment may preferably contain 20 to 80% by weight or more of the white pigment in a weight ratio with respect to the coating amount of the binder in the light reflecting layer. More preferably, it is 30% to 70%.

As the white pigment, inorganic and / or organic white pigments can be used, preferably inorganic white pigments. Examples of such white pigments include alkaline earth metal sulfates such as barium sulfate and calcium carbonate. Examples thereof include carbonates of alkaline earth metals, finely divided silicic acid, silicas of synthetic silicates, calcium silicate, alumina, hydrated alumina, titanium oxide, zinc oxide, talc, clay and the like.

Of these, barium sulfate is preferred,
Calcium carbonate and titanium oxide, more preferably barium sulfate and titanium oxide.

The titanium oxide may be of the rutile type or the anatase type, and the one whose surface is coated with a metal oxide such as hydrous alumina oxide or hydrous ferrite is also used.

In addition, various additives such as colored pigments, fluorescent whitening agents and antioxidants may be added.

The coating amount of the white pigment is preferably in the range of 1 g / m ² to 50 g / m ² , and more preferably 2 g / m ² to 20 g / m ² .

The effect of the present invention is further enhanced when the exposure is scanning exposure. The scanning exposure in the present invention is not particularly limited as long as the light for image exposure is scanned while scanning the surface of the photosensitive material, but spot exposure such as laser exposure scans the surface of the photosensitive material. Alternatively, the light source for exposure may perform scanning exposure while moving relative to the photosensitive material. The light source is not particularly limited, and a conventionally known one can be used.

The photographic light-sensitive material of the present invention may be either a negative type or a positive type, but a positive type is more preferable.

As the silver halide emulsion used in the present invention, a surface latent image type silver halide emulsion forming a latent image on the surface by imagewise exposure is used, and silver halide forming a negative image by development. An emulsion may be used. Also, using an internal latent image type silver halide emulsion in which the grain surface is not previously fogged, image exposure is subjected to fog treatment (nucleation treatment), and then surface development is performed, or after image exposure, while fog treatment is being performed. Those which can directly obtain a positive by performing surface development can also be preferably used.

The above-mentioned fog treatment may be carried out by exposing the entire 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 grain having a photosensitive nucleus mainly inside the silver halide crystal grains and forming a latent image inside the grains by exposure. The emulsion contained.

Various techniques have been known so far in the technical field of the internal latent image type direct positive. For example, U.S. Patents 2,592,250, 2,466,957, 2,497,875,
2,588,982, 3,761,266, 3,761,276, 3,7
The methods described in 96,577 and British Patent 1,151,363 are known.

Although the formation mechanism of the positive image is not always clear, for example, Photographic Science and Engineering (Photographic Science and Engineering)
and Engineering) Vol. 20, p. 158 (1976), it is described as follows.

Photoelectrons generated in the silver halide crystal grains by the 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 inside and therefore not developed by surface development. 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.

The non-pre-fogged internal latent image type silver halide grains which can be used in the present invention mainly form a latent image inside the silver halide grains and have most of the photosensitive nuclei inside the grains. An emulsion having silver halide grains, comprising any silver halide such as silver bromide, silver chloride,
It includes silver chlorobromide, silver chloroiodide, silver iodobromide, silver chloroiodobromide and the like.

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 1 / m ² is exposed to the light intensity scale for a predetermined 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 and It is an emulsion showing a maximum density which is not larger than ⅕ 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 to 1000 ml (internal developer) 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 Further, the internal latent image type silver halide emulsions preferably used in the present invention are various. Those prepared by the method are included. For example, conversion type silver halide emulsions described in U.S. Pat.No. 2,592,250, or U.S. Pat.
Nos. 6,3,317,322 and 3,367,778, and silver halide emulsions having internally chemically sensitized silver halide grains, or U.S. Patents 3,271,157 and 3,447,927.
Emulsion having silver halide grains containing a polyvalent metal ion described in U.S. Pat. Or a silver halide emulsion comprising grains having a laminated structure described in JP-A Nos. 50-8524, 50-38525 and 53-2408, and others. Examples thereof include silver halide emulsions described in JP-A-156614 and JP-A-55-127549.

The internal latent image type silver halide grains preferably used in the present invention are silver halides having any halogen composition such as silver bromide, silver chloride, silver chlorobromide, silver chloroiodide and silver iodobromide. Any silver chloroiodobromide may be used. The grains containing silver chloride have excellent developability and are suitable for rapid processing.

The shape of the silver halide grains used in the present invention is a cube, an octahedron, a tetrahedron composed of a mixture of (100) planes and (111) planes, a shape having (110) planes, a spherical shape,
It may be flat or the like.

Those having an average particle size of 0.05 to 3 μm can be preferably used. The grain size distribution may be a monodisperse emulsion having uniform grain size and crystal habit, or an emulsion having no uniform grain size or crystal habit, but a monodisperse silver halide emulsion having uniform grain size and crystal habit. Is preferred.

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 r is 60% of the total weight of silver halide grains.
% Or more, preferably 70% or more, and more preferably 80% or more. Here, the average particle diameter r is the product n _i × r _i ³ of the frequency n _i and r _i ³ of particles having a particle size r _i is defined as a particle diameter r _i at which the maximum (significant figure 3 Digits and minimum digits are rounded to 4).

The term "particle size" as used herein means the diameter of spherical silver halide grains, and the diameter of grains having a non-spherical shape when the projected image is converted into a circular image of the same area. Is. The particle size can be obtained, for example, by enlarging the particles from 10,000 to 50,000 times with an electron microscope and measuring the particle diameter on the print or the area at the time of projection (the number of measured particles is There shall be more than 1000 discriminants.)

Particularly preferred highly monodisperse emulsions are those in which the breadth of distribution defined by (grain size standard deviation / mean grain diameter) × 100 = breadth of distribution (%) is 20% or less. Here, the average particle size and the particle size standard deviation are obtained from r _i defined above.

A monodisperse emulsion is prepared by adding a water-soluble silver salt solution and a water-soluble halide solution to a gelatin solution containing seed grains at pH and pH.
Under the control of the double jet method. In determining the addition rate, reference can be made to JP-A Nos. 54-48521 and 58-49938.

As a method for obtaining a more advanced monodisperse emulsion, a growth method in the presence of a tetrazaindene compound disclosed in JP-A-60-122935 can be applied.

In the silver halide color photographic light-sensitive material of the present invention, a yellow image forming silver halide emulsion layer, a magenta image forming silver halide emulsion layer, a cyan image forming silver halide emulsion layer, and a black image forming property. It is also possible to have a silver halide emulsion layer. These silver halide emulsion layers can have spectral sensitivity wavelength regions different from each other. The spectral sensitivity wavelength regions may be different from each other and may be any wavelength region from the visible region to the infrared region and can be arbitrarily selected.

The fog processing in the internal latent image type direct positive image formation preferably used in the present invention can be carried out by exposing the whole surface or using a compound which generates fog nuclei, that is, a fog agent.

The black image forming silver halide emulsion layer also comprises
It may have a spectral sensitivity region common to any of the yellow image forming silver halide emulsion layer, the magenta forming silver halide emulsion layer and the cyan image forming emulsion layer.

The whole 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.

Further, the time of the whole surface exposure is the above-mentioned photographic light-sensitive material,
Depending on the development processing conditions, the type of light source used, etc., it can be varied over a wide range 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 certain range of exposure amount in combination with the photosensitive material. Usually, when 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. It is sufficient that the fog agent is present during the development processing, for example, in the constituent layers other than the support of the photographic light-sensitive material (among them, among them). In particular, it is preferably in a silver halide emulsion layer), or in a developing solution or a processing solution prior to the development 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 1 to 1,500 mg per mol of silver halide when added to the silver halide emulsion layer. Is 10 to 1,000 mg. The preferable addition amount when added to a processing solution such as a developing solution is 0.01
˜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.
No. 615, No. 3,718,479, No. 3,719,494, No. 3,734,738 and No. 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 fog agents may be used in combination. For example, RD15162 described above 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. As the fogging agent used in the present invention, either an adsorption type or 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, and 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 tetrahydroacridinium trifluoromethanesulfonate, 1-formyl-2- [4- {3- (2-methoxyphenyl) ureido} phenyl] hydrazine and the like.

The photographic light-sensitive material having a silver halide emulsion layer according to the present invention forms a positive image directly by subjecting it to imagewise exposure and then developing it in the presence of a fogging agent.

As the developer which can be used in the developer used for developing the photographic light-sensitive material of the present invention,
Conventional silver halide developers, for example, polyhydroxybenzenes such as hydroquinone, aminophenols, 3-
Pyrazolidones, ascorbic acid and its derivatives, reductones, phenylenediamines, etc., or mixtures thereof are included. 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. It is also possible to incorporate these developers in the emulsion in advance so that they act on the silver halide during the immersion in the 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.

In the silver halide photographic light-sensitive material of the present invention, known photographic additives can be used.

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

Additive 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 stabilizing agent 〃〃〃〃〃 Inhibitor 25 VII 650 Left-right Image stabilizer 25 VII UV absorber 25-26 VII 649 Right-650 Left Filter dye 〃 〃 〃 Whitening agent 24 V Hardening 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 Color is formed in the emulsion layer of the photosensitive material according to the present invention. Dye form that forms a dye by coupling reaction with oxidant of developing agent A synthetic coupler can be used. The dye-forming couplers are usually selected so that a dye that absorbs the light of the light-sensitive spectrum of the emulsion layer is formed for each emulsion layer. 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 silver halide color photographic light-sensitive material may be prepared by a method different from the above combination depending on the purpose.

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

[0091]

[Chemical 3]

In the formula, Z represents a group of non-metal atoms necessary to form 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. R represents a hydrogen atom or a substituent.

In the above general formula [MI], 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. A compound residue, a bridged hydrocarbon compound residue, etc. are also mentioned.

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. .

Examples of magenta couplers represented by the general formula [MI] include M-1 to M described in Japanese Patent Application No. 4-248212.
-19 is a typical example.

Still another specific example is European Published Patent 0273.
Compounds M-1 to M-61 described in No. 712, pages 6 to 21
And compounds 1 to 2 described in No. 0235913, pages 36 to 92
There are other than the representative examples described above in 23.

Further, the coupler is a Journal of the Chemical Society.
ciety), Perkin I (1977), 2047-2052, US Pat. No. 3,725,067, JP-A-59-99437, 58-42045.
No. 59, No. 162548, No. 59-171956, No. 60-33552, No. 60-33552
60-43659, 60-172982, 60-190779, 62-20945
It can be synthesized with reference to No. 7 and No. 63-307453.

[0099] aforementioned couplers can also be used with other types of magenta couplers, usually 1 mol of silver halide per 1 × 10 ^-3 mol to 1 mol, preferably 1 × 10 ^-2 mol to 8 × 10 ^- It can be used in the range of ¹ mol.

The color photographic light-sensitive material of the present invention preferably has a spectral absorption λ _L0.2 of a magenta image of ₅₈₀ to 635 nm.

The silver halide color photographic light-sensitive material having λ _{L0.2 of 580} to 635 _nm has a λ of spectral absorption of magenta image.
It is preferable that max is 530 to 560 nm.

Here, λ _L0.2 and λ max of the spectral absorption of the magenta image of the silver halide color photographic light-sensitive material in the present invention are the amounts measured by the following method.

(Method of measuring λ _L0.2 and λ max) In the case of the positive type, the silver halide color photographic light-sensitive material is uniformly exposed with a minimum amount of red light capable of obtaining the minimum density of a cyan image, and After uniformly exposing with the minimum amount of blue light that gives the lowest density of the yellow image, applying white light through the ND filter and then developing, attach an integrating sphere to the spectrophotometer, and use a standard white plate of magnesium oxide. Make a magenta image by adjusting the density of the ND filter so that the maximum value of the absorbance is 1.0 when the spectral absorption at 500 to 700 nm is measured with zero correction.

In the case of the negative type, the density of the ND filter is adjusted so that the maximum absorbance similar to that of the above-mentioned positive can be obtained when a magenta image is formed by developing by applying green light through the ND filter. λ _L0.2 means a wavelength longer than the wavelength at which the maximum absorbance is 1.0 on the spectral absorbance curve of this magenta image and at which the absorbance is 0.2.

The magenta image forming layer of the silver halide photographic light-sensitive material according to the present invention contains a yellow coupler in addition to the magenta coupler. PK of these couplers
The difference in a is preferably within 2 and more preferably
Within 1.5.

Preferred yellow couplers contained in the magenta image-forming layer of the present invention are represented by the following general formula [Y-Ia].
Is a coupler represented by. Particularly preferred couplers represented by the general formula [Y-Ia] are those represented by the general formula [M-
When combined with a magenta coupler represented by [I],
It is a coupler having a pKa value not lower than 3 by the pKa value of the coupler represented by [M-I].

[0107]

[Chemical 4]

In the general formula [Y-Ia], R ₃₁ represents a halogen atom or an alkoxy group.

R ₃₂ represents a hydrogen atom, a halogen atom or an alkoxy group which may have a substituent. R ₃₃ represents an acylamino group which may have a substituent, an alkoxycarbonyl group, an alkylsulfamoyl group, an arylsulfamoyl group, an arylsulfonamide group, an alkylureido group, an arylureido group, a succinimide group, an alkoxy group, each of which may have a substituent. Alternatively, it represents an aryloxy group.

Z ₃₀ represents a hydrogen atom, a monovalent organic group capable of splitting off upon coupling an oxidant of a color developing agent, or a halogen atom.

Specific examples of compounds are described in, for example, JP-A-2-139542.
Compound (Y-1) described in pages (13) to (17) of
(Y-58) can be preferably used, but is not limited to these.

The content ratio of the magenta coupler and the yellow coupler in the magenta image forming layer of the silver halide color photographic light-sensitive material of the present invention is determined by the spectral absorption of a dye image obtained by color development processing of the magenta image forming layer. May be determined so as to approximate the spectral absorption of the printed image by the magenta printing ink. Specifically, the amount of yellow coupler is usually 0.02 for 1 mol of magenta coupler.
A range of mol to 0.5 mol is suitable.

As the yellow coupler contained in the magenta image forming layer of the silver halide color photographic light-sensitive material of the present invention, the yellow coupler represented by the above general formula [Y-Ia] is preferably used.

In the present invention, as the cyan coupler contained in the cyan image forming layer, phenol type and naphthol type cyan dye forming couplers are used.

Of these, a coupler represented by the following general formula [CI] or [C-II] is preferably used.

[0116]

[Chemical 5]

In the general formula [CI], R ₄₁ represents an aryl group, a cycloalkyl group or a heterocyclic group. R ₄₂ represents an alkyl group or a phenyl group. R ₄₃ is a hydrogen atom,
It represents a halogen atom, an alkyl group or an alkoxy group.

Z ₄₀ represents a hydrogen atom or a group capable of splitting off upon reaction with an oxidized product of an aromatic primary amine type color developing agent.

[0119]

[Chemical 6]

In the general formula [C-II], R ₄₄ represents an alkyl group (eg, methyl group, ethyl group, propyl group, butyl group, nonyl group, etc.). R ₄₅ represents an alkyl group (eg, methyl group, ethyl group, etc.). R ₄₆ is a hydrogen atom, a halogen atom (eg, fluorine, chlorine, bromine, etc.) or an alkyl group
(Eg, methyl group, ethyl group, etc.). Z ₄₇ represents a hydrogen atom or a group capable of splitting off upon reaction with an oxidized product of an aromatic primary amine type color developing agent.

These cyan couplers are described in US Pat.
6,410, 2,356,475, 2,362,596, 2,367,531
No., No. 2,369,929, No. 2,423,730, No. 2,474,293,
2,476,008, 2,498,466, 2,545,687, 2,7
28,660, 2,772,162, 2,895,826, 2,976,14
No. 6, No. 3,002,836, No. 3,419,390, No. 3,446,622,
3,476,563, 3,737,316, 3,758,308, 3,8
39,044, British Patents 478,991, 945,542, 1,084,
480, 1,377,233, 1,388,024 and 1,543,0
No. 40, and Japanese Patent Laid-Open Nos. 47-37425 and 50-10135
No. 50, No. 50-25228, No. 50-112038, No. 50-117422,
50-130441, 51-5551, 51-37647, 51-52828
No. 51, No. 51-108841, No. 53-109630, No. 54-48237, No.
54-66129, 54-131931, 55-32071, 59-1460
No. 50, No. 59-31953, and No. 60-117249.

The coupler used in the present invention is usually 1 × per mol of silver halide in each silver halide emulsion layer.
10 ⁻³ mol to 1 mol, preferably 1 × 10 ⁻² mol to 8 ×
It can be used in the range of 10 ^-1 mol.

[0123]

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

Example 1 Corona discharge was applied to both front and back surfaces of a base paper having a basis weight of 80 g / m ² .
A 27 μm thick resin coating layer consisting of high-density polyethylene containing anatase-type titanium dioxide at a concentration of 15% is formed on the surface by an extrusion coating method. A polyethylene resin coating layer having a layer structure was formed to obtain a support.

On the support thus obtained, each layer having the constitution shown below was coated on the side of the polyethylene layer containing titanium oxide, and the back side was coated on the back side thereof to obtain a multilayer silver halide color photograph. A light-sensitive material was prepared.

(Preparation of Emulsion EM-1) While controlling the aqueous solution containing ossein gelatin at 40 ° C., the aqueous solution containing ammonia and silver nitrate and potassium bromide and sodium chloride (molar ratio KBr: NaCl = 95: 5). ) Is added at the same time by the control double jet method to obtain a particle size of 0.30
A μm cubic silver chlorobromide core emulsion was obtained. At that time, pH and pAg were controlled so as to obtain a cubic particle shape. An aqueous solution containing ammonia and silver nitrate and an aqueous solution containing potassium bromide and sodium chloride (molar ratio KBr: NaCl = 40: 60) were simultaneously added to the obtained core emulsion by the control double jet method to obtain average grains. Diameter 0.42 μm
The shell was formed until At that time, pH and pAg were controlled so as to obtain a cubic particle shape.

After washing with water to remove the water-soluble salt, gelatin was added to obtain an emulsion EM-1. The breadth of distribution of this emulsion EM-1 was 15%.

(Preparation of Emulsion EM-2) While controlling the aqueous solution containing ossein gelatin at 40 ° C., the aqueous solution containing ammonia and silver nitrate and potassium bromide and sodium chloride (molar ratio KBr: NaCl = 95: 5). ) Is added at the same time by the control double jet method to give a particle size of 0.26
A μm cubic silver chlorobromide core emulsion was obtained. At that time, pH and pAg were controlled so as to obtain a cubic particle shape. An aqueous solution containing ammonia and silver nitrate and an aqueous solution containing potassium bromide and sodium chloride (molar ratio KBr: NaCl = 40: 60) were simultaneously added to the obtained core emulsion by the control double jet method to obtain average grains. Diameter 0.36 μm
The shell was formed until At that time, pH and pAg were controlled so as to obtain a cubic particle shape.

After washing with water to remove the water-soluble salt, gelatin was added to obtain an emulsion EM-2. The breadth of distribution of this emulsion EM-2 was 14%.

(Preparation of Emulsion EM-3) While controlling the aqueous solution containing ossein gelatin at 40 ° C., the aqueous solution containing ammonia and silver nitrate and potassium bromide and sodium chloride (molar ratio KBr: NaCl = 95: 5). ) Is added at the same time by the control double jet method to obtain a particle size of 0.30
A μm cubic silver chlorobromide core emulsion was obtained. At that time, pH and pAg were controlled so as to obtain a cubic particle shape. An aqueous solution containing ammonia and silver nitrate and an aqueous solution containing potassium bromide and sodium chloride (molar ratio KBr: NaCl = 40: 60) were simultaneously added to the obtained core emulsion by the control double jet method to obtain average grains. Diameter 0.42 μm
The shell was formed until At that time, pH and pAg were controlled so as to obtain a cubic particle shape. In the shell forming step, 1 × 10 ^-8 mol of K3RhBr6 was added to 1 mol of the final silver halide in an aqueous solution containing potassium bromide and sodium chloride.

After washing with water to remove the water-soluble salt, gelatin was added to obtain an emulsion EM-3. The breadth of distribution of this emulsion EM-3 was 8%.

(Preparation of Emulsion EM-4) While controlling the aqueous solution containing ossein gelatin at 40 ° C., the aqueous solution containing ammonia and silver nitrate, potassium bromide and sodium chloride (molar ratio KBr: NaCl = 95: 5). ) Is added at the same time by the control double jet method to give a particle size of 0.26
A μm cubic silver chlorobromide core emulsion was obtained. At that time, pH and pAg were controlled so as to obtain a cubic particle shape. An aqueous solution containing ammonia and silver nitrate and an aqueous solution containing potassium bromide and sodium chloride (molar ratio KBr: NaCl = 40: 60) were simultaneously added to the obtained core emulsion by the control double jet method to obtain average grains. Diameter 0.36 μm
The shell was formed until At that time, pH and pAg were controlled so as to obtain a cubic particle shape. In the shell forming step, 1 × 10 ^-8 mol of K3RhBr6 was added to 1 mol of the final silver halide in an aqueous solution containing potassium bromide and sodium chloride.

After washing with water to remove the water-soluble salt, gelatin was added to obtain an emulsion EM-4. The breadth of distribution of this emulsion EM-4 was 8%.

(Preparation of Blue Sensitive Emulsion EM-1B) EM-1
A sensitizing dye D-1 was added thereto for color sensitization, and then 600 mg of T-1 was added per mol of silver to prepare a blue-sensitive emulsion EM-1B.

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

(Preparation of Red Sensitive Emulsion EM-2R) EM-2
A red-sensitive emulsion EM-2R was prepared in the same manner as the blue-sensitive emulsion except that the sensitizing dyes D-3 and D-4 were added thereto for color sensitization.

(Preparation of pan-sensitive emulsion EM-1P) EM-1
A general-purpose emulsion EM was prepared in the same manner as the blue-sensitive emulsion except that the sensitizing dyes D-1, D-2, D-3 and D-4 were added to the emulsion to perform color sensitization.
-1P was prepared.

(Preparation of Blue Sensitive Emulsion EM-3B) EM-3
A sensitizing dye D-1 was added to the above to perform color sensitization, and then 600 mg of T-1 was added per 1 mol of silver to prepare a blue-sensitive emulsion EM-3B.

(Preparation of Green Sensitive Emulsion EM-4G) EM-4
A green-sensitive emulsion EM-4G was prepared in the same manner as the blue-sensitive emulsion except that the sensitizing dye D-2 was added to the mixture to perform color sensitization.

(Preparation of Red Sensitive Emulsion EM-4R) EM-4
A red-sensitive emulsion EM-4R was prepared in the same manner as the blue-sensitive emulsion except that the sensitizing dyes D-3 and D-4 were added thereto for color sensitization.

(Preparation of pan-sensitive emulsion EM-3P) EM-3
A general-purpose emulsion EM was prepared in the same manner as the blue-sensitive emulsion except that the sensitizing dyes D-1, D-2, D-3 and D-4 were added to the emulsion to perform color sensitization.
-3P was produced.

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

[0143]

[Chemical 7]

EM-1B, EM-2G, EM-2
Using R and EM-1P, the first to eighth layers were coated on the front surface of the support and the ninth layer was coated on the back surface of the support in the following constitution to prepare a color photographic light-sensitive material. SA-1 as a coating aid
And SA-2, and H-1 and H- as hardeners.
2 was used to prepare Sample 1.

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 H-2: Tetrakis (vinylsulfonylmethyl) methane layer composition Coating amount (g / m ² ) Eighth layer gelatin 0.78 (UV absorbing layer) UV absorber (UV-1) 0.065 UV absorber (UV-2 ) 0.120 UV absorber (UV-3) 0.160 Oil-soluble dye 1 0.5 × 10 ^-3 Oil-soluble dye 2 0.5 × 10 ^-3 Solvent (SO-2) 0.1 Silica matting agent 0.03 7th layer Gelatin 1.43 (blue sensitive layer) Blue-sensitive emulsion EM-1B (coating silver amount) 0.5 Yellow coupler (YC-1) 0.82 Antistain agent (AS-2) 0.025 Solvent (SO-1) 0.82 Inhibitor (ST-1, ST-2, T-1) ) Sixth layer Gelatin 0.54 (Intermediate layer) Color mixture inhibitor (AS-1, AS-3, AS-4 equivalent) 0.055 Solvent (SO-2) 0.072 Anti-irradiation dye (AI-3) 0.03 Fifth layer gelatin 0.42 (yellow yellow colloidal silver 0.03 colloidal silver layer) Anti-color mixing agent (AS-1, AS-3AS-4 equivalent) 0.04 Solvent (SO-2) 0.049 Polyvinylpyrrolidone (PVP) 0.047 4th layer Gelatin 0.54 (Intermediate layer) Anti-color mixing agent (AS-1, AS- 3, AS-4 equivalent) 0.055 Solvent (SO-2) 0.072 Third layer Gelatin 1.43 (Green sensitive layer) Green sensitive emulsion EM-2G (Coated silver amount) 0.50 Magenta coupler (MC-1) 0.25 Yellow coupler (YC) -2) 0.06 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) Anti-color mixing agent (AS- 1, AS-3, AS-4 equivalent) 0.055 Solvent (SO-2) 0.072 Anti-irradiation dye (AI-1) 0.01 Anti-irradiation dye (AI-2) 0.01 First layer gelatin 1.38 (red sensitive layer) Red-sensitive emulsion EM-2R (amount of coated silver) 0.30 Uncoupler (CC-2) 0.44 Solvent (SO-1) 0.31 Anti-staining agent (AS-2) 0.015 Inhibitor (ST-1, ST-2, T-1) 9th layer Gelatin 6.00 (Back layer) Silica mat Agent 0.65 The amount of coated silver is calculated as silver.

Sample-2 was prepared in the same manner as sample-1 above. However, in Sample-2, the seventh layer blue-sensitive emulsion EM-
The coating silver amount of 1B was 0.40 g / m ² , and the third layer green-sensitive emulsion EM-
2G coated silver amount is 0.40 g / m ² , first layer red-sensitive emulsion EM-
Sample-1 except that the amount of silver coated on 2R was 0.24 g / m ^2.
Sample-2 was prepared in the same manner as described above.

Sample-3 was prepared in the same manner as Sample-1. However, in Sample-3, the seventh layer blue-sensitive emulsion EM-
EM-3B instead of 1B, EM- of the third layer green-sensitive emulsion
EM-4G instead of 2G, first layer red-sensitive emulsion EM-2
Sample-3 was prepared in exactly the same manner as Sample-1 except that EM-4R was used instead of R.

Sample-4 was prepared in the same manner as sample-2 above. However, in Sample-4, the seventh layer blue-sensitive emulsion EM-
EM-3B instead of 1B, EM- of the third layer green-sensitive emulsion
EM-4G instead of 2G, first layer red-sensitive emulsion EM-2
Sample-4 was prepared in the same manner as in sample-1, except that EM-4R was used instead of R.

In Samples 1 to 4 above, between the support and the first red-sensitive layer, from the side closer to the support, the A1 layer (white pigment layer) and the A2 layer (intermediate layer) having the following constitution were formed. Sample-1 to Sample-4 in the same manner except that a layer) was provided.
A to sample-4A were obtained.

A2 layer Gelatin 0.54 (intermediate layer) Color mixing inhibitor (AS-1, AS-3, AS-4 equivalent) 0.055 Solvent (SO-2) 0.072 A1 layer Gelatin 1.00 (HC layer) Titanium oxide 3.00 SO- 1: Trioctyl phosphate SO-2: Dioctyl phthalate AS-1: 2,4-di-t-octylhydroquinone AS-2: 2,4-di-t-butylhydroquinone ST-1: 1- (3-acetamidophenyl ) -5-Mercaptotetrazole ST-2: N-benzyladenine

[0151]

[Chemical 8]

[0152]

[Chemical 9]

[0153]

[Chemical 10]

[0154]

[Chemical 11]

[0155]

[Chemical 12]

(Evaluation of Photographic Gradation) Samples 1 to 4 and 1A to 4A obtained as described above were exposed through an optical wedge according to a usual sensitometric method, and Development processing was performed under processing condition 1, and the obtained sample was measured to obtain a sensitometric result. From the results, when the minimum density was Dmin, the absolute value of the slope of the straight line connecting the point of D = Dmin + 0.3 and the point of D = 1.3 on the characteristic curve was measured and evaluated.

(Evaluation of halftone image) A black plate and a cyan plate of a halftone original document are closely attached to Sample-1 to Sample-4 and Sample-1A to Sample-4A obtained as described above. Then, exposure was performed under the exposure condition-1 shown below. Then, 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. Further, by changing the amount of titanium oxide in the A1 layer of Sample-4A, Sample-4B-
Sample 4D was prepared. The exposure conditions were the same as above.

[0158] Each of the light-sensitive materials exposed by the halftone dot image as described above was processed by the development processing step shown below to obtain a dye image consisting of halftone dots.

Of the obtained image, the neutral image portion composed of halftone dots of each of the yellow plate, the magenta plate and the cyan plate was measured for the density at the halftone dot areas of 10% and 50%, respectively, and measured as follows. An evaluation was made. The results are shown in the table. Here, we evaluate how the ratio of the blue density to the green density of the neutral part (DB / DG) and the ratio of the red density to the green density (DR / DG) change at 10% with respect to the value at 50%. This was evaluated as neutral reproducibility. That is, when the values of DR / DG and DB / DG at halftone dot 50% are 100, respectively, DR / D at halftone dot 10%
When the G and DB / DG values are close to 100, the color balance at the midpoint and the small point is close, and the neutral reproducibility is excellent.

That is, it was evaluated by the following method.

[(DR / DG) ₁₀ ] / [(DR / DG) ₅₀ ] ×
100 = DR / DG [(DB / DG) ₁₀ ] / [(DB / DG) ₅₀ ] × 100 = DB /
DG Further, the densities of each of the yellow, magenta, and cyan single colors under the above exposure conditions were measured. The concentration is measured by PDA-
Measured using 65.

(Exposure condition-1) When exposing each light-sensitive material to white light through a red filter (Ratten No. 26) and an ND filter, the ND filter density is adjusted so that the red light density after the development processing becomes the minimum. Exposure for 0.5 seconds with the minimum exposure amount.

(Exposure condition-2) When exposing each light-sensitive material to white light through a green filter (Ratten No. 58) and an ND filter, the ND filter density is adjusted so that the green light density after the development processing becomes the minimum. Exposure for 0.5 seconds with the minimum exposure amount.

(Exposure condition-3) When exposing each light-sensitive material to white light through a blue filter (Ratten No. 47B) and an ND filter, the ND filter density is adjusted so that the blue light density after the development processing is minimized. Exposure for 0.5 seconds with the minimum exposure amount.

A plurality of daylight fluorescent lamps were used as the light sources under the exposure conditions 1 to 3, and the light exposure was performed while the photosensitive material and the light source were stationary.

A halftone image was formed in the same manner as the halftone image formation described above, but exposure was performed by a method of moving and scanning a light-sensitive material on which a daylight color fluorescent lamp was stationary.

The halftone image obtained by scanning exposure was evaluated in the same manner.

The conditions of the developing treatment and the prescription of the treatment liquid are as follows. Processing Step-1 Temperature Time Immersion (Developer) 37 ° C 12 seconds Fog exposure-12 seconds (1 lux) Development 37 ° C 95 seconds Bleach-fixing 35 ° C 45 seconds Stabilization 25-30 ° C 90 seconds Dry 60-85 ° C 40 Second processing solution composition (color developing solution) 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 Sodium diethylenetriamine pentaacetate 2.0 g 4-Amino-N-ethyl-N- (β-hydroxyethyl) 4.5 g Aniline sulfate Optical brightener (4,4'-diaminostilbene disulfonic acid derivative) 1.0 g Potassium hydroxide 2.0 g Diethylene glycol 15.0 ml Add water to bring the total volume to 1 liter and adjust the pH to 10.15.

(Bleach-fixing solution) Diethylenetriamine pentaacetate ferric ammonium 90.0 g Diethylenetriamine pentaacetic acid 3.0 g Ammonium thiosulfate (70% aqueous solution) 180 ml Ammonium sulfite (40% aqueous solution) 27.5 ml 3-Mercapto-1,2,4-triazole Adjust the pH to 7.1 with 0.15 g potassium carbonate or glacial acetic acid and add water to bring the total volume to 1 liter.

(Stabilizing Solution) o-Phenylphenol 0.3 g Potassium sulfite (50% aqueous solution) 12 ml Ethylene glycol 10 g 1-Hydroxyethylidene-1,1-diphosphonic acid 2.5 g Bismuth chloride 0.2 g Zinc sulfate heptahydrate 0.7 g Water Ammonium oxide (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 bring the total volume to 1 liter and add ammonium hydroxide or Adjust the pH to 7.5 with sulfuric acid. The stabilization process is 2
A counter-current system with a tank configuration was adopted.

The formulation of the replenisher for running is shown below.

(Color development replenisher) Benzyl alcohol 18.5 ml Cerium sulfate 0.015 g Ethylene glycol 10.0 ml Potassium sulfite 2.5 g Potassium bromide 0.3 g Sodium chloride 0.2 g Potassium carbonate 25.0 g T-1 0.1 g Hydroxylamine sulfate 5.0 g Sodium diethylenetriaminepentaacetate 2.0 g 4-Amino-N-ethyl-N- (β-hydroxyethyl) 5.4 g Aniline sulfate Optical brightener (4,4'-diaminostilbenedisulfonic acid derivative) 1.0 g Potassium hydroxide 2.0 g Diethylene glycol 18.0 ml Add water to make the total volume 1 liter and adjust to pH 10.35.

(Bleach-fixing solution replenishing solution) Same as the above-mentioned bleach-fixing solution.

(Stabilizer Replenisher) Same as the above stabilizer.

The replenishing amount of the developing solution replenishing solution, the bleach-fixing solution and the stabilizing solution was 320 ml per 1 square meter of the light-sensitive material.

The results are shown below.

[0177]

[Table 1]

As is clear from the results shown in Table 1, in the samples of the present invention, DB / DG and DR / which represent neutral reproducibility.
It can be said that the DG value is closer to 100 and the neutral reproducibility is excellent. Further, in scanning exposure, the neutral reproducibility is deteriorated in the samples other than the present invention, whereas only the present invention is excellent in the neutral reproducibility.

Example 2 Sample-5 was prepared in the same manner as Sample-4A prepared in Example 1. In Sample-5, in addition to the red-sensitive emulsion EM-4R in the first red-sensitive layer of Sample-4, EM-3P was added in the third layer.
In addition to the green-sensitive emulsion EM-4G in the green-sensitive layer, a pan-sensitive emulsion E
M-3P, and the blue-sensitive emulsion EM-3 of the seventh blue-sensitive layer
In addition to B, a pan-sensitive emulsion EM-3P was added and coating was performed with the constitution shown in the following table to prepare a sample. In the preparation of the coating liquid, the pan-sensitive emulsion was mixed with the coating liquid prepared except the pan-sensitive emulsion contained in the first layer, the third layer and the seventh layer,
Immediately thereafter, coating was performed.

Seventh Layer (Blue Sensitive Layer) Blue Sensitive Emulsion EM-1B (Coating Silver Amount) 0.4 General Sensitive Emulsion EM-3P (Coating Silver Amount) 0.1 Third Layer (Green Sensitive Layer) Green Sensitive Emulsion EM-2G ( Coating silver amount) 0.40 Pan-sensitive emulsion EM-3P (coating silver amount) 0.1 First layer (red-sensitive layer) Red-sensitive emulsion EM-2R (coating silver amount) 0.24 Pan-sensitive emulsion EM-3P (coating silver amount) 0.06 The sample-5 obtained as described above was exposed and treated in the same manner as in Example-1, and the neutral reproducibility was evaluated according to Example 1.

The results are shown in Table 2, which shows that good neutral reproducibility is exhibited.

[0182]

[Table 2]

[0183]

INDUSTRIAL APPLICABILITY The silver halide color photographic light-sensitive material and the image forming method using the same according to the present invention are excellent in halftone dot reproducibility, improve neutral reproducibility, and have a variable exposure amount and development processing conditions. Even if the value fluctuates, the halftone dot reproducibility, especially the neutral reproducibility, is improved less.

Front page continuation (51) Int.Cl. ⁶ Identification number Office reference number FI technical display location G03C 7/407 G03F 3/10 B 7369-2H

Claims (5)

[Claims] 1. A support having at least one yellow image-forming silver halide emulsion layer, at least one magenta image-forming silver halide emulsion layer and at least one cyan image-forming silver halide emulsion. In a silver halide color photographic light-sensitive material having layers, the photographic gradation of at least one layer is 4 or more, and the maximum density of at least one single color of yellow image, magenta image or cyan image is 1.5 or more and less than 2.0. A silver halide color photographic light-sensitive material characterized in that 2. A support having at least one light reflecting layer containing a white pigment on the image forming layer side of the support, and the ratio of the amount of the white pigment contained in the light reflecting layer to the amount of the light reflecting layer bound with the binder. 2. The silver halide color photographic light-sensitive material according to claim 1, wherein the weight ratio is 20% or more. 3. A yellow image forming layer, a magenta image forming layer, and a yellow image forming layer on a support based on halftone dot image information composed of color-separated yellow image information, magenta image information, cyan image information, and black image information. In the process of exposing and processing a silver halide color photographic light-sensitive material having a cyan image forming layer to form a yellow image component, a magenta image component, a cyan image component, and a black image component to form a color proof, A method for producing a color proof, wherein the silver color photographic light-sensitive material uses the silver halide color photographic light-sensitive material according to claim 1. 4. A yellow image and a magenta image are obtained by exposing and processing a silver halide color photographic light-sensitive material having a yellow image forming layer, a magenta image forming layer and a cyan image forming layer on a support based on image information. In the step of forming a cyan image to form a color image, the silver halide color photographic light-sensitive material is the silver halide color photographic light-sensitive material described in 1 or 2, and the exposure is performed by scanning exposure. A characteristic image forming method. 5. The method for producing a color proof according to claim 3, wherein the exposure is performed by scanning exposure.