JP2001125230A - Color image forming method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To form a color image free from unevenness and having favorable black, yellow, magenta and cyan tones with high productivity when a color image is obtained by scanning exposure of a silver halide photographic sensitive material. SOLUTION: The silver halide photosensitive material is exposed with a laser light source or a light emitting diode as a light source for exposure to form a color image. The surface layer situated opposite to silver halide emulsion layers by way of the substrate has <=140 sec Bekk smoothness. The sensitivity between the silver halide emulsion layers in exposure with the light source is represented by expression 1 and the maximum light exposure in exposure with the light source is represented by expression 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for forming a color image using a silver halide photographic material (hereinafter, also referred to as a "photosensitive material"). More specifically, in the color plate making and printing processes, in particular, during calibration in a method of exposing according to a digital signal based on halftone image information obtained by color separation and halftone image conversion, an exposure including a laser or a light emitting diode is performed. The present invention relates to an image forming method for forming a color image by an image forming apparatus having a unit.

[0002]

2. Description of the Related Art Conventionally, 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 color plate making and printing process, a silver halide color photographic material having a white support has been proposed. A method for producing a color proof using the method described in
6-104335, 62-280746, 62
-280747, 62-280748, 62-
Nos. 280747 and 62-280750.

On the other hand, a plate making method of converting an image into a digital signal and editing the image on a computer without using the above-described halftone dot black-and-white film has been widely used. By digitizing the image information, the image processing, the image can be quickly sent to a remote place, or the image in which the layout, the color tone, etc. of the image are changed can be quickly edited.

As a method of outputting an image edited in this manner as a color proof, a method of performing scanning exposure on a color paper with a laser or a light emitting diode is known. However, there are various practical problems in practical use. I have. For example, to output as a printing proof,
It is necessary to output an image on a relatively large area, and it takes a long time to perform scanning exposure of the image, which significantly lowers productivity.

[0005] Efforts have been made to increase the productivity of exposure by using a technique of simultaneously irradiating a plurality of beam spots onto a silver halide photographic material using a plurality of lasers or light emitting diodes having the same wavelength. However, in reality, even if the type of laser light source and light emitting diode are the same, there are individual differences among them, and even if there is a slight deviation of the oscillation wavelength or even a single laser light, the laser oscillator or light emitting diode When the temperature fluctuates, the oscillation wavelength fluctuates, the intensity is not uniform, and the like. Therefore, the adjustment of the exposure apparatus becomes very complicated, and this causes a variation in finished quality in the market.

[0006] The influence on the image appears as a change in halftone dot reproducibility, in particular, a variation in dot size, and is one of the major causes of deteriorating the stability of image quality. In particular, when developing processing is to be performed within a short time after image exposure in order to improve productivity, the change in the dot area ratio is particularly large, and this problem is solved from the viewpoint of improving productivity. Is strongly desired.

An image forming method using a silver halide photographic light-sensitive material has been known for the purpose of proofreading of a printed matter. In order to output a large image such as a printed matter, a silver halide photographic light-sensitive material is wound around a drum and rotated. Although the method of exposing while making it suitable is suitable, in order to output a halftone image, it is necessary to raise the accuracy of the exposure position on the drum rotating at high speed, and in practice it is extremely difficult, and if the position accuracy becomes poor It appears as a change in the dot area. It is desired to reduce such fluctuations and to efficiently output a large-sized halftone image.

In order to fix the silver halide photographic light-sensitive material in close contact with the rotating drum, a method is employed in which air is suctioned and reduced in pressure from minute holes or grooves provided in the rotating drum to make the material in close contact. At that time, it is necessary to apply a suction force sufficient to prevent peeling off even at high speed rotation, and the flatness of the photosensitive material in the holes and grooves is damaged, and the beam is likely to be out of focus. The quality of the halftone dots will be impaired.

[0009] The problem that the flatness is impaired by the suction part is as follows.
It has been found that the way in which the photosensitive material is fed to the drum also has an effect, and the tension at the time of fixing is in a state with little distortion. It was found that the deterioration of the dot image quality was improved. Furthermore, in order to create an actual printed matter when performing color printing, inks of each color of yellow, magenta, cyan, and black are used, but when an image is formed using color paper as a silver halide photographic photosensitive material, Is to form a black image by simultaneously developing yellow, magenta, and cyan images. This has many advantages because the structure of the photosensitive material can be simplified and the exposure apparatus can be simplified. However, when a method of forming a black image using yellow, magenta, and cyan is used, for example, when a black dot image is reproduced, a dot area ratio of a yellow image of a black portion, a dot area ratio of a magenta image, It is necessary to match the halftone dot area ratios of the images, but it has been found that if the halftone dot area ratios differ, the color tone of black greatly deviates from the preferable color tone of black. The same problem is caused by the influence of the distortion of the photosensitive material in the suction section.

[0010]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a method for obtaining a color image by scanning and exposing a silver halide photographic light-sensitive material with high productivity, no image unevenness, and good color tone of black. An object of the present invention is to provide an image forming method in which each of the yellow, magenta and cyan tones is preferable.

Furthermore, in the color plate making and printing processes,
In a method of obtaining a color image by performing scanning exposure on a silver halide photographic material from halftone image information obtained by color separation and halftone image conversion, there is no image unevenness, and the color tone of black and yellow, magenta, cyan An object of the present invention is to provide a color image forming method for calibration in which each color tone is preferable.

[0012]

The above object of the present invention has been attained by the following constitutions. 1. A silver halide photosensitive material having at least one yellow coupler-containing silver halide emulsion layer, one magenta coupler-containing silver halide emulsion layer, and one cyan coupler-containing silver halide emulsion layer on a reflective support having a thickness of 80 μm or more and 140 μm or less. At least 100 per second
A color image forming method comprising: winding around a drum rotating 0 or more times, exposing using a yellow image forming exposure light source selected from a laser light source or a light emitting diode, a magenta image forming exposure light source, and a cyan image forming exposure light source. The surface layer in which the silver halide light-sensitive material is located on the opposite side of the silver halide emulsion layer with respect to the support has a Beck smoothness of 140 seconds or less, and the interlayer between each silver halide emulsion layer when exposed by the exposure light source. A color image forming method, wherein the sensitivity is represented by formula (1) and the maximum exposure amount when exposing with the exposure light source is represented by formula (2).

Equation (1) Sy (Y) / Sy (M) ≧ 25,
Sy (Y) / Sy (C) ≧ 25 Sm (M) / Sm (C) ≧ 25, Sm (M) / Sm
(Y) ≧ 25 Sc (C) / Sc (Y) ≧ 25, Sc (C) / Sc
(M) ≧ 25, where Sy (Y): the sensitivity of the yellow coupler-containing silver halide emulsion layer when exposed with a yellow image forming exposure light source, and Sy (M): when exposed with a yellow image forming exposure light source. Sy (C): sensitivity of the cyan coupler-containing silver halide emulsion layer when exposed with an exposure light source for yellow image formation, Sm (Y): exposure light source for magenta image formation Sm (M): sensitivity of the magenta coupler-containing silver halide emulsion layer when exposed with an exposure light source for forming a magenta image, Sm (C): magenta image The sensitivity of the cyan coupler-containing silver halide emulsion layer when exposed with the exposure light source for forming, Sc (Y): when exposed with the exposure light source for cyan image formation Sc (M): the sensitivity of the magenta coupler-containing silver halide emulsion layer when exposed with an exposure light source for cyan image formation, Sc (C): the exposure for cyan image formation This represents the sensitivity of a cyan coupler-containing silver halide emulsion layer when exposed to a light source.

The sensitivity is expressed as the reciprocal of the exposure amount at which the density of minimum density + 0.2 is obtained. Equation (2) Sy (Y) × 2.5 ≦ Ey ≦ Sy (Y) × 4.
0 Sm (M) × 2.5 ≦ Em ≦ Sm (M) × 4.0 Sc (C) × 2.5 ≦ Ec ≦ Sc (C) × 4.0 where Ey: exposure light source for yellow image formation Em: the maximum exposure of the exposure light source for magenta image formation, and Ec: the maximum exposure of the exposure light source for cyan image formation. 2. The silver halide light-sensitive material is added at least one second per second.
In a color image forming method in which the photosensitive material is wound around a drum rotating at least 000 times and exposed using the exposure light source, the silver halide light-sensitive materials are arranged on opposite sides of a silver halide emulsion layer across a support. Friction coefficient of 0.1 ~
0.4, the sensitivity between the respective silver halide emulsion layers when exposed by the exposure light source is represented by the formula (1), and the maximum exposure amount when exposed by the exposure light source is the formula (2) A color image forming method represented by the following formula: 3. The silver halide light-sensitive material is added at least one second per second.
A color image forming method wherein the silver halide photosensitive material is wound on a drum rotating at least 000 times and exposed using the exposure light source, wherein the silver halide photosensitive material is located on the opposite side of the silver halide emulsion layer across the support The content of the matting agent in the layer is 0.5 to 3.0 g / m ² , and the sensitivity between the respective silver halide emulsion layers when exposed by the exposure light source is represented by the above formula (1); A color image forming method, wherein the maximum exposure amount when exposing with a light source is represented by the above formula (2). 4. The silver halide light-sensitive material is added at least one second per second.
In a color image forming method in which the photosensitive material is wound around a drum rotating at least 000 times and exposed using the exposure light source, the silver halide photosensitive material has a Taber stiffness of 0.8 to 4.0, and is exposed with the exposure light source. Wherein the sensitivity between the respective silver halide emulsion layers is represented by the above formula (1), and the maximum exposure amount when exposed by the exposure light source is represented by the above formula (2). Method. 5. The silver halide light-sensitive material is added at least one second per second.
In a color image forming method in which the photosensitive material is wound around a drum rotating at least 000 times and exposed using the exposure light source, the silver halide photosensitive material contains a compound represented by the general formula (1) or (2). The sensitivity between the respective silver halide emulsion layers when exposed by the exposure light source is represented by the above formula (1), and the maximum exposure amount when exposed by the exposure light source is represented by the above formula (2). A color image forming method comprising:

[0015]

Embedded image

In the formula, R ₁ represents a hydrogen atom or a substituent,
R ₂ represents a substituent, and m represents an integer of 0 to 2. However, when m is 0, R ₁ represents an electron-withdrawing group, and when m is 1 or 2, at least one of R ₁ and R ₂ represents an electron-withdrawing group. When m is 2, a plurality of R ₂ may be the same or different. Z ₁ represents a nonmetallic atom group necessary for forming a nitrogen-containing 5-membered heterocyclic ring optionally benzene ring and condensed, X ₁ is splitting off upon reaction with the oxidation product of the hydrogen atom or a color developing agent Represents a substituent to be obtained.

[0017]

Embedded image

In the formula, R ₁₁ and Y ₂ represent a hydrogen atom or a substituent, and X ₂ represents a hydrogen atom or a substituent which can be eliminated by reaction with an oxidized form of a color developing agent. Z ₂ is -N (Y ₂ )
And-represents a group of nonmetallic atoms necessary for forming a nitrogen-containing 6-membered heterocyclic ring by condensing with the pyrazole ring, the 6-membered ring may have a substituent, and in addition to the pyrazole ring, a benzene ring And may be condensed. 6. The silver halide light-sensitive material is added at least one second per second.
In a color image forming method in which the film is wound around a drum rotating at least 000 times and exposed using the exposure light source, the sensitivity between the respective silver halide emulsion layers when exposed by the exposure light source is represented by the formula (1); The maximum exposure amount when exposing with the exposure light source is represented by the above formula (2), and the step of mounting the silver halide photosensitive material on the drum is performed by exhausting air from a suction groove or a suction hole provided on the drum. Aspirate and decompress,
A color image forming method, wherein the degree of reduced pressure is reduced after the silver halide photosensitive material is once held, and then reduced again. 7. The silver halide light-sensitive material is added at least one second per second.
In a color image forming method in which the film is wound around a drum rotating at least 000 times and exposed using the exposure light source, the sensitivity between the respective silver halide emulsion layers when exposed by the exposure light source is represented by the formula (1); And a maximum exposure amount when exposing with the exposure light source is represented by the formula (2), and the beam diameter of the exposure light source is 5 to 20 μm. 8. The silver halide light-sensitive material is added at least one second per second.
In a color image forming method in which the film is wound around a drum rotating at least 000 times and exposed using the exposure light source, the sensitivity between the respective silver halide emulsion layers when exposed by the exposure light source is represented by the formula (1); The maximum exposure amount when exposing with the exposure light source is represented by the above formula (2), and the ratio of the minimum beam diameter to the maximum beam diameter among the beam diameters of the exposure light source is 0.7 to 1. 0. A color image forming method characterized by being 0. 9. The silver halide light-sensitive material is added at least one second per second.
In a color image forming method in which the film is wound around a drum rotating at least 000 times and exposed using the exposure light source, the sensitivity between the respective silver halide emulsion layers when exposed by the exposure light source is represented by the formula (1); The maximum exposure amount when exposing with the exposure light source is represented by the above formula (2), and at least one of the exposure light sources is a laser light source or a light emitting diode having a wavelength of 370 to 500 nm. Color image forming method. 10. 10. The exposure light source according to any one of the items 1 to 9, wherein at least one of the exposure light sources is an exposure light source comprising a plurality of laser light sources having the same wavelength and / or a light emitting diode.
Item.

Hereinafter, the present invention will be described in detail. First, the reflective support used in the present invention will be described. The thickness of the reflective support used in the present invention is 80 to 140 μm.
It is characterized in that a m-thick one is used.
Those having a thickness of 0 μm are preferred. The support preferably used in the present invention has both sides of the paper substrate coated with a resin containing a polyolefin resin as a main component, and continuously measures the unevenness of the surface of the support, and frequency-analyzes a measurement signal thereof. When determined, the integrated value (PY value) of the power spectrum in the frequency range of 1 to 12.5 mm on the surface of the support is preferably 2.9 μm or less. The PY value is more preferably 1.8 μm or less, and still more preferably 1.15 μm or less.

When a support having a PY value larger than 2.9 μm is used, unevenness of an image becomes large and dot reproduction is deteriorated when increasing the number of revolutions of the drum to improve productivity. To measure the PY value, the thickness unevenness of the polyolefin-coated support is continuously measured using a film thickness continuous measuring machine (for example, manufactured by Anritsu Corporation), and the obtained measurement signal is converted to a frequency analyzer (for example, Hitachi Electronics:
VC-2403).

The substrate (base paper) of the support can be selected from raw materials generally used for photographic printing paper. For example, in addition to natural pulp, synthetic pulp, a mixture of natural pulp and synthetic pulp, various raw paper materials can be mentioned. In general, natural pulp mainly composed of softwood pulp, hardwood pulp, mixed pulp of softwood pulp and hardwood pulp, and the like can be widely used.

Further, additives such as a sizing agent, a fixing agent, a strength enhancer, a filler, an antistatic agent, a dye and the like generally used in papermaking may be incorporated into the support. An agent, a surface strengthening agent, an antistatic agent and the like may be appropriately applied to the surface. The reflection support preferably has a weight of 130 g or less per 1 m ² , and more preferably has a smooth surface with a weight of 70 to 120 g per 1 m ² , and has both surfaces laminated. The resin may be a homopolymer of ethylene, α-olefins, for example, polypropylene, a copolymer of at least two kinds of the olefins, or at least two of these various polymers.
It can be selected from a mixture of species and the like. Particularly preferred polyolefin resins are low density polyethylene, high density polyethylene or mixtures thereof.

The molecular weight of the polyolefin resin to be laminated on the reflective support is not particularly limited, but usually a molecular weight in the range of 20,000 to 200,000 is preferably used. The polyolefin resin coating layer on the side of the reflection support on which the photographic emulsion is coated is preferably 25 to 50 μm.
And more preferably 25 to 35 μm.

As the polyolefin used for laminating the back side of the reflection support (the reflection side of the side on which the emulsion layer is provided), a mixture of low-density polyethylene and high-density polyethylene is usually melt-laminated. This layer is generally often matted. In forming the laminate on the front and back of the support, generally, in order to increase the flatness of the developed photographic paper in a normal environment, the density of the resin layer on the front side is slightly larger than that on the back side, or the amount of lamination on the back side is larger than that on the front side. For example, a means such as performing is used.

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

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

Of these, barium sulfate is preferred.
Calcium carbonate and titanium oxide, more preferably barium sulfate and titanium oxide. The titanium oxide may be of a rutile type or an anatase type, and one whose surface is coated with a metal oxide such as hydrous alumina or hydrous ferrite is also used. In addition, it is preferable to add an antioxidant or a colored pigment or a fluorescent whitening agent for improving whiteness.

Further, it is preferable to provide a hydrophilic colloid layer containing a white pigment on the reflective support, because the sharpness is improved. As the white pigment, the same white pigment as described above can be used, but titanium oxide is preferable.
It is more preferable to add a hollow fine particle polymer or a high boiling point organic solvent to the hydrophilic colloid layer containing a white pigment because sharpness and / or curl resistance can be improved.

The shape of the surface of the reflective support may be smooth or may have an appropriate surface roughness, but it is preferable to select a reflective support having a gloss close to that of printed matter. For example, JIS B 0601-1976
Has an average surface roughness SRa of 0.30 to 3.0 μm
It is preferred to use a white support having a m. The present invention is characterized in that three laser light source units or light emitting diode light source units having different wavelengths are used. Here, the laser light source unit or the light emitting diode light source unit is a unit that forms a laser light source that outputs laser light of a specific wavelength, or a unit that forms a light emitting diode light source that outputs light of a specific wavelength. There may be one laser oscillator or light-emitting diode element corresponding to a laser light source or light-emitting diode light source of a certain wavelength, or a plurality of laser oscillators or light-emitting diode elements as a laser light source or light-emitting diode light source of a certain wavelength may be exposed simultaneously. In some cases, it functions as a light source. In the present invention, the three types of laser light source units or the light emitting diode light source units have different wavelengths, and the oscillation wavelengths are separated by at least 30 nm or more, preferably 50 nm or more.

According to a tenth aspect of the present invention, at least one of the exposure light sources of the present invention is a plurality of laser exposure light sources having the same wavelength and / or a light emitting diode exposure light source. In at least one laser light source unit or light emitting diode light source unit, a plurality of beam spots are simultaneously irradiated on a silver halide photographic material using a plurality of laser oscillators or light emitting diode elements having the same wavelength. The term “plurality” means two or more, and there is no particular upper limit. For example, the number is two to 500 or more. 2-30
Although the number is more practically preferable, it can be appropriately selected depending on how to increase the productivity.

When a plurality of laser oscillators or light emitting diode elements are used, the number of laser light source units or light emitting diode light source units may be one or more, and three or more.
All the laser light source units or the light emitting diode units may be composed of a plurality of laser oscillators or a plurality of light emitting diode elements, respectively. By arranging a plurality of laser light sources and light-emitting diode light sources to form a plurality of beam spots, a plurality of spots can be exposed at the same time even in a drum rotating system, thereby increasing the productivity of exposure.

When a laser light source or a light emitting diode light source has a high light intensity and is divided into a plurality of beam spots, the wavelength and intensity of each beam are essentially one laser light source or a light emitting diode light source. Thus, the problem addressed by the present invention is not a very significant defect. Also, even when all the laser light source units and the light emitting diode light source units are each configured from a single laser oscillator and a light emitting diode element,
Of course, there is a problem to be solved in the present invention.

In the present invention, the same wavelength is used because the difference between the wavelengths of the individual laser light sources and the light emitting diodes is 10 nm or less. The wavelength of a laser or a light emitting diode fluctuates depending on the environment such as temperature and operating conditions.
Refers to the following. In the present invention, light from at least three different light source units is simultaneously exposed on a silver halide photographic material. In the image exposure of the present invention, light from three light sources is simultaneously exposed to the same position. Of course, the light quantity modulation is performed according to the image to be obtained, but when irradiating the same position, the three colors are simultaneously performed. As an example, if the wavelength of the exposure unit is 442n
In the case of exposure with light of m, 544 nm and 670 nm, the light beams are simultaneously exposed at the same position in accordance with image information.

As a laser for exposing the photosensitive material, various conventionally known lasers can be used.
A gas laser can provide high output, but the device is large and expensive, and a modulator is required. On the other hand, semiconductor lasers have features such as small size, low cost, and long life. Some semiconductor lasers have an oscillation wavelength from the visible part to the infrared.

As an example of a gas laser that emits visible light, a helium-cadmium laser (441.6n) is used.
m), an argon ion laser (514.4 nm), a helium neon laser (632.8 nm), and the like. As a semiconductor laser, AlGaInAs
(670 nm), GaAlAs (750 nm), GaAs
lAs (760-850 nm) and the like, but are not limited thereto.

A light emitting diode (LED) having a composition similar to that of a semiconductor laser is known.
Various types from blue to infrared have been put to practical use. In the present invention, it is preferable that the light-sensitive material is exposed at a light exposure of at least two values in a light-sensitive region of at least one silver halide emulsion layer. Exposure with two or more values of exposure means that, in addition to a reference value that does not provide exposure,
This is to control the image exposure at two or more exposure levels.

In the present invention, in performing the scanning exposure on the photosensitive material, the photosensitive material is set so as to be wound around a rotating drum, and a laser exposure or a light emitting diode exposure according to image information is performed in synchronization with the rotation of the rotating drum. Do it. The diameter of the drum can be arbitrarily set in accordance with the size of the photosensitive material to be exposed. The number of rotations of the drum can be set arbitrarily, but an appropriate number of rotations can be selected according to the beam diameter of the laser or light-emitting diode, energy intensity, light writing pattern, sensitivity of the photosensitive material, and the like. From the viewpoint of productivity, it is preferable that scanning exposure can be performed at a higher rotation speed. However, in the present invention, the rotation is performed at 1,000 rotations or more per minute.
From rotation to 4000 rotations is preferred.

According to the sixth aspect of the present invention, in the process of setting the photosensitive material on the rotary drum, the photosensitive material is temporarily held on the surface of the rotary drum by exhausting and reducing the pressure through a suction groove or a suction hole provided on the rotary drum. After that, the degree of reduced pressure is reduced and then increased again. That is, in the process of increasing the degree of decompression from the suction hole in order to set the photosensitive material on the rotating drum, after increasing the decompression degree to at least 30% with respect to the final decompression degree,
It is preferable to lower the pressure to below and then increase the degree of pressure reduction again. The method for fixing a photosensitive material according to the present invention can be more strongly adhered to a drum as the drum rotates at a higher speed, and is extremely effective in preventing troubles such as unevenness of an image.

In the invention according to claim 7, the beam diameters of the exposure light source for yellow image formation, the exposure light source for magenta image formation, and the exposure light source for cyan image formation according to the present invention are all 5 μm or more and less than 20 μm. It is a feature. If it is less than 5 μm, it is difficult to reduce the unevenness of the image at the suction unit, and a slight vibration will cause streak unevenness in the image. Will not be done. The beam diameter can be adjusted by appropriately designing the optical system.

The beam diameter of the infrared laser preferably used in the present invention is 25 μm or less, more preferably 6 to 22 μm. When scanning exposure is performed with a high-speed rotating drum, unevenness is particularly large with an infrared laser, and the sharpness of an image is also deteriorated. By narrowing the beam diameter according to the present invention, it is possible to produce a high-definition image without unevenness.

According to the eighth aspect of the present invention, the smallest beam diameter with respect to the largest beam diameter among the beam diameters of the yellow image forming exposure light source, the magenta image forming exposure light source, and the cyan image forming exposure light source according to the present invention. The diameter ratio is 0.
It is characterized in that it is 7 or more and 1.0 or less. As an example, assuming that the exposure light source for yellow image formation is 12 μm, the exposure light source for magenta image formation is 10 μm, and the exposure light source for cyan image formation is 9 μm, the maximum beam diameter (12 μm) is obtained.
μm) to the smallest beam diameter (9 μm) is 0.7
It becomes 5.

According to a ninth aspect of the present invention, at least one of the yellow image forming exposure light source, the magenta image forming exposure light source, and the cyan image forming exposure light source according to the present invention has a wavelength of 370 nm or more and 500 nm or less. It is characterized by being a light source or a light emitting diode.
Examples of such a light source include a laser light source using an SHG element, a helium / cadmium laser light source, and a nitrogen gallium semiconductor laser, but are not limited thereto.

In the image forming method of the present invention, the exposure apparatus is an exposure apparatus preferably used for large-sized color prints and color proofs, and a silver halide photographic light-sensitive material wound in a roll is used in a light room. A cartridge stored so that it can be handled is loaded into an exposure apparatus, pulled out, cut to a length necessary for image formation, wound around a rotating drum, and rotated by a laser exposure apparatus or a light emitting diode exposure apparatus while rotating the drum. To perform image exposure,
Subsequently, it is preferably used as a means for obtaining a color image by performing a developing process. At this time, the exposure apparatus preferably has a mechanism for reading information given to the light-room cartridge and automatically identifying the type of photosensitive material and / or setting exposure conditions and / or developing processing conditions. .

Various light chamber cartridges have been proposed, but all known light chamber cartridges can be used. Also, by covering the outer periphery of the roll-shaped photosensitive material having a light-shielding flange with a light-shielding leader,
The photosensitive material can be handled in a bright room while being shielded from light. After loading into the exposure device, the reader is removed, eliminating the need for a dark room. In the image forming method of the present invention, it is included in the bright room cartridge. In that case, the readable information can be given to the reader or to the flange or the like.

The light-sensitive material used in the present invention includes a yellow (Y) image-forming silver halide emulsion layer, a magenta (M) image-forming silver halide emulsion layer, and a cyan (C) image-forming silver halide emulsion layer. And each has Y
A dot image, an M dot image, and a C dot image are formed. In a preferred embodiment of the present invention, the formation of the halftone dot image of black is performed by a combination of the Y, M, and C image forming layers.

In the present invention, it is preferred that the silver halide emulsion contained in at least one of the emulsion layers has a spectral maximum in a wavelength range longer by 2 to 10 nm than a laser or light emitting diode exposure wavelength. In the case where the spectral maximum is in a wavelength region smaller than 2 nm and longer than the exposure wavelength, there is a problem that when the output wavelength fluctuates, the sensitivity fluctuates greatly and the image becomes unstable. On the other hand, 10n
When the spectral maximum is in a wavelength region longer than m and longer than the exposure wavelength, there is a problem that sensitivity is low.

The maximum spectral sensitivity can be measured by a commonly used method such as a spectral spectrograph or sensitometry using monochromatic light having different wavelengths. In the sensitive material according to the present invention, at least three lasers or at least one wavelength of at least one wavelength of the light emitting diode light source unit is used.
It is preferable that the spectral sensitivity has a maximum in a wavelength region longer by 10 to 10 nm.

When a plurality of lasers or light emitting diode light source units are composed of a plurality of oscillators, the average value of the oscillation wavelengths is used as the wavelength of the light source unit.
In the present invention, it is preferable to use a silver halide photographic material having at least three silver halide emulsion layers having different spectral sensitivities, but among the three silver halide emulsion layers, the spectral sensitivity having the longest wavelength is used. The ratio (rl / rs) of the average particle size (rl) of the silver halide emulsion having the following formula to the average particle size (rs) of the silver halide emulsion having the shortest wavelength spectral sensitivity is from 1.1 to 2.0. The following is preferred. If the ratio is less than 1.1, color separation by exposure becomes insufficient, resulting in color turbidity in an image. 2.0
If it is larger than the above, there is a difference in developability, which causes a problem that the color balance is sometimes lost when development processing conditions such as temperature and pH change.

The present invention is characterized in that the sensitivity between the respective silver halide emulsion layers when exposed by the above-mentioned exposure light source is represented by the formula (1). Formula (1) Sy (Y) / Sy (M) ≧ 25, Sy (Y)
/ Sy (C) ≧ 25 Sm (M) / Sm (C) ≧ 25, Sm (M) / Sm
(Y) ≧ 25 Sc (C) / Sc (Y) ≧ 25, Sc (C) / Sc
(M) ≧ 25 In the relational expression represented by the above expression (1), when the sensitivity ratio on the left side is less than 25 and out of the preferable range of the present invention,
When an environmental change such as a temperature or a change in the processing temperature occurs, the image density greatly fluctuates, causing unevenness in the density of black and uneven color tone of halftone dots of black. There is no particular limitation on the one with a higher sensitivity ratio, but it is practically a range smaller than 1000.

Further, the present invention is characterized in that the maximum exposure amount when exposing with the exposure light source is expressed by the following equation (2). Equation (2) Sy (Y) × 2.5 ≦ Ey ≦ Sy (Y) ×
4.0 Sm (M) × 2.5 ≦ Em ≦ Sm (M) × 4.0 Sc (C) × 2.5 ≦ Ec ≦ Sc (C) × 4.0 Represented by the above formula (2) In the relational expression, when the maximum exposure amount deviates to a side smaller than the relation of the expression (2), the white background deteriorates. On the other hand, if it is shifted to the larger side, the density of the black image is reduced, the density is uneven, and the color tone variation of the black dot image tends to be deteriorated.

The formulas (1) and (2) according to the present invention will be described by way of an example. The silver halide photographic light-sensitive material of the present invention comprises a blue-sensitive silver halide emulsion layer containing a Y coupler (also simply referred to as a Y layer), a green-sensitive silver halide emulsion layer containing an M coupler (also referred to simply as an M layer), C A silver halide photographic light-sensitive material comprising a coupler-containing red-sensitive silver halide emulsion layer (also simply referred to as a C layer), wherein the light-sensitive material is a blue (B) laser or magenta as a blue light source for yellow (Y) image formation. When the exposure is performed using a green (G) laser as the (M) green light source for image formation and a red (R) laser as the red light source for cyan (C) image formation, the relationship of equation (1) is as follows. Become.

Equation (1) Sy (B) / Sy (G) ≧ 2
5, Sy (B) / Sy (R) ≧ 25 Sm (G) / Sm (R) ≧ 25, Sm (G) / Sm
(B) ≧ 25 Sc (R) / Sc (B) ≧ 25, Sc (R) / Sc
(G) ≧ 25 Here, Sy (B): sensitivity of the Y layer when exposed with a blue (B) laser, Sy (G): sensitivity of the M layer when exposed with a blue (B) laser, Sy ( R): sensitivity of layer C when exposed with blue (B) laser, Sm (B): sensitivity of Y layer when exposed with green (G) laser, Sm (G): exposure with green (G) laser Sm (R): sensitivity of C layer when exposed with green (G) laser, Sc (B): sensitivity of Y layer when exposed with red (R) laser, Sc ( G): Sensitivity of the M layer when exposed with a red (R) laser, Sc (R): Sensitivity of the C layer when exposed with a red (R) laser.

The relation of the equation (2) is as follows. Equation (2) Sy (B) × 2.5 ≦ Ey ≦ Sy (B) ×
4.0 Sm (G) × 2.5 ≦ Em ≦ Sm (G) × 4.0 Sc (R) × 2.5 ≦ Ec ≦ Sc (R) × 4.0 where Ey: blue (B) laser Em: Maximum exposure of green (G) laser. Ec: Maximum exposure of red (R) laser.

The maximum exposure here refers to the maximum exposure necessary for performing image density modulation for forming an image. The present invention can be applied to a light-sensitive material having a constitution of a color-sensitive silver halide emulsion and a coupler other than those described above. According to the first aspect of the present invention, the Beck smoothness of the surface layer (hereinafter, also referred to as the outermost layer on the back surface) located on the opposite side of the silver halide emulsion layer with respect to the reflective support is 140 seconds or less. It is. The Beck smoothness in the present invention,
It is defined by the value (second) measured under the following conditions. << Measurement of Beck smoothness >>
It can be determined by measuring according to 8119. Specifically, a circular sample stage having an optical flat surface finish and a decompression hole in the center, a rubber holding plate, 98 kPa
Using a device consisting of a presser for applying pressure and a vacuum gauge, a measurement sample of 50 mm square, a rubber presser plate and a presser are sequentially stacked on a circular sample table until the mercury column of the vacuum gauge becomes 380 mm. After evacuation from the decompression hole of the circular sample stage and stopping, the time (seconds) required for the mercury column to reach 380 mm to 360 mm is measured, and the value is called Beck smoothness.

The Beck smoothness of the outermost layer on the back side is 140 seconds or less, preferably 80 to 130 seconds. As means for achieving Beck smoothness in the present invention,
The means for roughening the surface of the outermost layer on the back side is most optimal.
As a roughening means, a matting agent is added to the backside outermost layer coating solution, the backcoat layer is embossed, the backcoat layer is provided on a support having irregularities, the backcoat layer surface is roughened with a roughening roll. Examples of the method include providing irregularities, and any method can be applied as long as the surface of the outermost layer on the back surface can be roughened. In particular, a method in which a matting agent is added to the coating solution for the outermost layer on the back surface is the simplest, effective, and preferable method.

The invention according to claim 2 is characterized in that the surface layer located on the side opposite to the silver halide emulsion layer with respect to the reflective support has a coefficient of friction of 0.1 or more and 0.4 or less. is there. In the present invention, the coefficient of friction refers to a coefficient of dynamic friction between the back surfaces of the photosensitive material. If the friction coefficient is less than 0.1, the setting position on the drum is not stable, and the reproducibility of the position tends to be poor. Conversely, if it is larger than 0.4, the halftone dot area and the color tone of the black halftone dot tend to fluctuate in the suction holes and grooves, which is not preferable.

The method of measuring the dynamic friction coefficient will be described below. The dynamic friction coefficient between the back surfaces of the photosensitive materials is JIS-K-712.
5 (1987), the film was cut out so that the back surfaces of the films were in contact with each other, a 200 g weight was placed, the sample movement speed was 100 mm / min, and the contact area was 80 mm × 200.
The weight was horizontally pulled under the condition of mm, the average load (F) during which the weight was moving was measured, and the dynamic friction coefficient (μ) was obtained from the following equation.

Dynamic friction coefficient = F (mN) / weight of weight (mN) Means for achieving the friction coefficient according to the present invention include:
Use of a known sliding agent, increase in the amount of a solid filler such as colloidal silica, combined use of a fluorine-containing material as typified by JP-A-8-101480, and the like can be mentioned. Can be obtained.

As the sliding agent used in the present invention, for example, US Pat. No. 3,042,522 and British Patent No. 95
No. 5,061, U.S. Pat. Nos. 3,080,317, 4,004,927, 4,047,958, 3,489,576, and British Patent 1,143,11.
No. 8, JP-A-60-140341, etc., silicon-based sliding agents, U.S. Pat. Nos. 2,454,043, 2,732,305, 2,976,148, and 3 No. 1,206,311; German Patent 1,284,29.
No. 5,284,294, etc., higher fatty acid-based, alcohol-based, acid amide-based sliding agents, British Patent No. 1,263,722, US Pat. No. 3,933,516
No. 2,588,765
No. 3,121,060 and British Patent No. 1,19.
No. 8,387, ester type and ether type sliding agents described in US Pat. Nos. 3,502,437 and 3,04
And a taurine-based slipper described in No. 2,222.

According to the third aspect of the present invention, the hydrophilic colloid layer located on the opposite side of the silver halide emulsion layer with respect to the reflective support has an amount of the matting agent of 0.5 g to 3.0 g / m 2.
² or less, more preferably 0.7
g to 2.0 g / m ² . Also, the content of the matting agent is
3 to 50% by mass relative to the hydrophilic binder is preferable,
More preferably, it is 5 to 40% by mass.

The light-sensitive material of the present invention preferably has a hydrophilic colloid layer containing fine powder and having a dry film thickness of 3 to 15 μm at a position opposite to the silver halide emulsion layer with respect to the reflective support. This fine particle powder is often referred to in the art as a matting agent, and hence is hereinafter referred to as a matting agent unless otherwise specified. In the light-sensitive material of the present invention, the total amount of the hydrophilic binder per unit area of the reflective support on the side of the silver halide emulsion layer is preferably 5 to 10 g / m ² , more preferably 6 to 9 g / m ^2. m ² . It is preferable to provide a layer having a total amount of hydrophilic binder per unit area of 3 to 8 g / m ² located on the opposite side of the silver halide emulsion layer with respect to the reflective support.

Examples of the matting agent that can be used in the present invention include crystalline or non-crystalline silica, titanium dioxide, magnesium oxide, calcium carbonate, barium sulfate, strontium barium sulfate, alumina magnesium silicate, silver halide, and silicon dioxide. , Acrylic acid-ethyl acrylate copolymer, acrylic acid-methyl methacrylate copolymer, itaconic acid-styrene copolymer, maleic acid-methyl methacrylate copolymer, maleic acid-
Examples include styrene copolymer, acrylic acid-phenyl acrylate copolymer, polymethyl methacrylate, acrylic acid-methacrylic acid-ethyl methacrylate copolymer, polystyrene, starch, and cellulose acetate propionate. Other US Patents 1,221,9
No. 80, No. 2,992, 101, etc., and these can be used alone or in combination of two or more. Colloidal silica may be used together with the matting agent. The particle size of these matting agents is preferably 1 to 10 μm, more preferably 3 to 1 μm.
0 μm.

The average particle size (referred to as rm) here means
In the case of spherical particles, it is the diameter, and in the case of cubic or non-spherical particles, it is the average value of the diameter when the projected image is converted into a circular image of the same area, and the particle size of each particle Is ri
Where the number is ni, defined by the following equation: As a specific measuring method, a method described in JP-A-59-29243 can be applied.

Rm = 発 明 niri / Σni In the present invention, the matting agent is dispersed and contained in the layer on the side opposite to the photosensitive layer. The method may be, if necessary, a nonionic, cationic or anionic interface. In a hydrophilic binder containing an activator, other additives are added as necessary, and dispersed by a high-speed rotation mixer, a homogenizer, an ultrasonic dispersion, a ball mill, or the like, by an emulsification dispersion method using shear stress, an optional method. It can be formed by coating.

According to claim 4 of the present invention, the Taber stiffness of the reflective support according to the present invention is (Taber Stiff).
nes) 0.8 to 4.0. The Taber stiffness is a stiffness measuring instrument V-5 model 150B TaberV-5 Stiffnes
s tester (TABER INSTRUMENT
-A TELEDYNE COMPANY). Note that the support generally has different stiffness values in the vertical and horizontal directions, but it is sufficient that at least one of the supports falls within this range.

In the reflective support, a desired Taber stiffness can be obtained by appropriately selecting a papermaking method, raw materials of base paper, and the like. According to claim 5 of the present invention,
The silver halide photographic light-sensitive material according to the present invention is characterized in that it contains at least one layer of the compounds represented by the general formulas (1) and (2).

The compound represented by formula (1) or (2), specifically, a cyan coupler will be described.

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In the formula, R ₁ represents a hydrogen atom or a substituent,
R ₂ represents a substituent, and m represents an integer of 0 to 2. However, when m is 0, R ₁ represents an electron-withdrawing group, and when m is 1 or 2, at least one of R ₁ and R ₂ represents an electron-withdrawing group. When m is 2, a plurality of R ₂ may be the same or different. Z ₁ represents a nonmetallic atom group necessary for forming a nitrogen-containing 5-membered heterocyclic ring optionally benzene ring and condensed, X ₁ is splitting off upon reaction with the oxidation product of the hydrogen atom or a color developing agent Represents a substituent to be obtained.

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In the formula, R ₁₁ and Y ₂ represent a hydrogen atom or a substituent, and X ₂ represents a hydrogen atom or a substituent which can be eliminated by reaction with an oxidized form of a color developing agent. Z ₂ is -N (Y ₂ )
And-represents a group of nonmetallic atoms necessary for forming a nitrogen-containing 6-membered heterocyclic ring by condensing with the pyrazole ring, the 6-membered ring may have a substituent, and in addition to the pyrazole ring, a benzene ring And may be condensed.

In the general formula (1), the electron-withdrawing group is
Preferably, the substituent constant δp defined by Hammett is a substituent of +0.20 or more, and specifically, sulfonyl, sulfinyl, sulfonyloxy, sulfamoyl, phosphoryl, carbamoyl, acyl, acyloxy, oxycarbonyl, carboxyl, Examples include groups such as cyano, nitro, halogenated alkoxy, halogenated aryloxy, pyrrolyl, and tetrazolyl, and halogen atoms.

Examples of the sulfonyl group include alkylsulfonyl, arylsulfonyl, and groups such as alkylsulfonyl halide and arylsulfonyl halide. Examples of the sulfinyl group include groups such as alkylsulfinyl and arylsulfinyl. Examples of the sulfonyloxy group include groups such as alkylsulfonyloxy and arylsulfonyloxy. Examples of the sulfamoyl group include groups such as N, N-dialkylsulfamoyl, N, N-diarylsulfamoyl, and N-alkyl-N-arylsulfamoyl. Examples of the phosphoryl group include groups such as alkoxyphosphoryl, aryloxyphosphoryl, alkylphosphoryl, and arylphosphoryl. As the carbamoyl group,
Examples include groups such as N, N-dialkylcarbamoyl, N, N-diarylcarbamoyl, and N-alkyl-N-arylcarbamoyl. Examples of the acyl group include groups such as alkylcarbonyl and arylcarbonyl. As the acyloxy group, an alkylcarbonyloxy group is preferable. Examples of the oxycarbonyl group include groups such as alkoxycarbonyl and aryloxycarbonyl. As the halogenated alkoxy group, an α-halogenated alkoxy group is preferable. As the halogenated aryloxy group, groups such as tetrafluoroaryloxy and pentafluoroaryloxy are preferable. Examples of the pyrrolyl group include groups such as 1-pyrrolyl. Examples of the tetrazolyl group include groups such as 1-tetrazolyl.

In addition to the above substituents, a trifluoromethyl group, a heptafluoro-i-propyl group, a nonylfluoro-t-butyl group, a tetrafluoroaryl group, a pentafluoroaryl group and the like are also preferably used. Among the substituents represented by R ₁ or R _2, various substituents other than the electron-withdrawing group can be exemplified, and there is no particular limitation, but typical examples include alkyl, aryl, anilino, acylamino, Sulfonamide, alkylthio, arylthio, alkenyl, cycloalkyl, cycloalkenyl, alkynyl, heterocycle, alkoxy, aryloxy, heterocycleoxy, siloxy, amino, alkylamino, imide, ureido, sulfamoylamino, alkoxycarbonylamino, aryl Examples include oxycarbonylamino, alkoxycarbonyl, aryloxycarbonyl, heterocyclic thio, thioureido, hydroxyl and mercapto groups, spiro compound residues, bridged hydrocarbon compound residues, and the like.

The alkyl group preferably has 1 to 32 carbon atoms and may be linear or branched. As the aryl group, a phenyl group is preferable. Examples of the acylamino group include an alkylcarbonylamino group and an arylcarbonylamino group. As the sulfonamide group,
Examples thereof include an alkylsulfonylamino group and an arylsulfonylamino group. Examples of the alkyl component and the aryl component in the alkylthio group and the arylthio group include the above-described alkyl groups and aryl groups. The alkenyl group is preferably a group having 2 to 32 carbon atoms, and the cycloalkyl group is preferably a group having 3 to 12 carbon atoms, particularly 5 to 7 carbon atoms. The alkenyl group may be linear or branched. The cycloalkenyl group preferably has 3 to 12 carbon atoms, particularly preferably 5 to 7 carbon atoms. As a ureido group, an alkylureido group, an arylureido group, etc., as a sulfamoylamino group, an alkylsulfamoylamino group, an arylsulfamoylamino group, etc., and as a heterocyclic group, a 5- to 7-membered one is preferable. Specifically, as a heterocyclic oxy group such as a 2-furyl group, a 2-thienyl group, a 2-pyrimidinyl group, and a 2-benzothiazolyl group, those having a 5- to 7-membered heterocyclic ring are preferable. As a heterocyclic thio group such as a 5,6-tetrahydropyranyl-2-oxy group and a 1-phenyltetrazol-5-oxy group, a 5- to 7-membered heterocyclic thio group is preferable,
For example, 2-pyridylthio group, 2-benzothiazolylthio group, 2,4-diphenoxy-1,3,5-triazole-6-thio group, etc., and siloxy groups include trimethylsiloxy group, triethylsiloxy group, and dimethylbutylsiloxy group. The imide group includes succinimide group, 3-heptadecyl succinimide group, phthalimide group, glutarimide group and the like. Spiro compound residue includes spiro [3.3]
Heptane-1-yl, etc. Examples of the bridged hydrocarbon compound residue, bicyclo [2.2.1] heptane-1-yl, tricyclo [3.1.1 ^3.7] decan-1-yl, 7,7
Dimethyl-bicyclo [2.2.1] heptan-1-yl and the like.

These groups may further contain a substituent such as a long-chain hydrocarbon group or a diffusion-resistant group such as a polymer residue. In the general formula (1), examples of the group capable of leaving by reaction with the oxidized form of the color developing agent represented by X ₁ include, for example, a halogen atom (chlorine, bromine, fluorine, etc.), alkoxy, aryloxy, heterocyclic oxy, acyloxy , Sulfonyloxy, alkoxycarbonyloxy, aryloxycarbonyl, alkyloxalyloxy, alkoxyoxalyloxy, alkylthio, arylthio, heterocyclic thio, alkyloxythiocarbonylthio, acylamino, sulfonamide, nitrogen-containing heterocycle linked by N atom , Alkyloxycarbonylamino, aryloxycarbonylamino, carboxyl,

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(R ₁ ', R ₂ ' and Z ₁ 'are the same as those of R ₁ , R ₂
And Z ₁ have the same meanings as above, and R _g and R _h each represent a hydrogen atom, an alkyl group, an aryl group or a heterocyclic group), but are preferably hydrogen atoms, halogen atoms, alkoxy groups, aryl groups They are an oxy group, an alkylthio group, an arylthio group, and a nitrogen-containing heterocyclic group linked by an N atom.
Examples of the nitrogen-containing heterocyclic ring formed by Z ₁ ′ include a pyrazole ring, an imidazole ring, a benzimidazole ring, a triazole ring, and a tetrazole ring.

The compounds represented by the general formula (1) are more specifically represented by the following general formulas (a) to (g).

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In the general formula (a), R₁And R_ThreeOut of
At least one of the general formula (b):₁And R_FourOut of
At least one of the general formula (c):₁, R_FiveAnd R₆
At least one of the general formula (d):₁, R₇Passing
And R₈At least one of the general formula (e):₁Passing
And R₉At least one of the general formula (f): ₁,
In the general formula (g), R₁And R_TenAt least one of
Is an electron-withdrawing group.

X ₁ has the same meaning as X ₁ in formula (1), and n represents an integer of 0 to 4. Y ₁ represents a hydrogen atom or a substituent, and preferred substituents represented by Y ₁ are, for example, those which are separated from the cyan coupler before the compound of the present invention reacts with the oxidized developing agent. Groups capable of leaving under alkaline conditions as described in, for example, JP-A-61-222844, and JP-A-56-13373.
Substituents which are coupled off by reaction with an oxidized developing agent as described in No. 4, etc. can be exemplified. Preferred Y ₁ is a hydrogen atom.

In the general formulas (a) to (g),
Among R ₁ , R _{3 to} R ₁₀ , those which are not electron-withdrawing groups represent a hydrogen atom or a substituent, and those of R ₁₀ which are not electron-withdrawing groups are not particularly limited as substituents. In general formula (1), when R ₁ or R ₂ is other than an electron-withdrawing group, those described as the substituent represented by R ₁ or R ₂ can be mentioned.

The cyan coupler having an electron-withdrawing group according to the present invention is disclosed in Japanese Patent Application Nos. 62-47323 and 62-53.
No. 417, No. 62-62162, No. 62-53418
No. 62-62163, No. 62-48895, No. 62-99950, and the like, and can be easily synthesized. Cyan coupler represented by formula (2) are those having a pyrazole ring and condensed to form a heterocyclic 6-membered ring structure is not particularly limited as substituents represented by R _11, typical Examples include alkyl, aryl, anilino, acylamino, sulfonamide, alkylthio, arylthio, alkenyl, cycloalkyl, and other groups.In addition, halogen atoms and cycloalkenyl, alkynyl, heterocycle, sulfonyl,
Sulfinyl, phosphonyl, acyl, carbamoyl, sulfamoyl, cyano, alkoxy, sulfonyloxy, aryloxy, heterocyclic oxy, siloxy, acyloxy, carbamoyloxy, amino, alkylamino, imide, ureido, sulfamoylamino, alkoxycarbonylamino, aryl Examples include groups such as oxycarbonylamino, alkoxycarbonyl, aryloxycarbonyl, heterocyclic thio, thioureido, carboxyl, hydroxyl, mercapto, nitro, and sulfo, as well as spiro compound residues and bridged hydrocarbon compound residues.

The alkyl group represented by R ₁₁ preferably has 1 to 32 carbon atoms, and may be linear or branched. R
_{As the} aryl group represented by ₁₁ , a phenyl group is preferable. The acylamino group represented by R _11, an alkyl carbonyl group, an aryl carbonyl amino group. Examples of the sulfonamide group represented by R ₁₁ include an alkylsulfonylamino group and an arylsulfonylamino group. Alkylthio group represented by R _11, the alkyl moiety in the arylthio group, the aryl component is an alkyl group represented by R _11, an aryl group. The alkenyl group represented by R ₁₁ has 2 carbon atoms.
~ 32, a cycloalkyl group having 3 to 1 carbon atoms
2, particularly preferably 5 to 7, and the alkenyl group may be linear or branched. 3 to 12 carbon atoms The cycloalkenyl group represented by R _11, especially those of 5-7 preferred. Examples of the sulfonyl group represented by R ₁₁ include an alkylsulfonyl group and an arylsulfonyl group. Examples of the sulfinyl group include an alkylsulfinyl group and an arylsulfinyl group. Examples of the phosphonyl group include alkylphosphonyl, alkoxyphosphonyl, and aryloxy. Phosphonyl group, arylphosphonyl group, etc .: As acyl group, alkylcarbonyl group, arylcarbonyl group, etc .: As carbamoyl group, alkylcarbamoyl group, arylcarbamoyl group, etc .: As sulfamoyl group, alkylsulfamoyl group, aryl Sulfamoyl group and the like: As the acyloxy group, an alkylcarbonyloxy group,
Arylcarbonyloxy group and the like: carbamoyloxy group as alkylcarbamoyloxy group, arylcarbamoyloxy group and the like: ureido group as alkylureido group, arylureido group and the like as sulfamoylamino group as alkylsulfamoylamino Group, arylsulfamoylamino group, etc .: 5 as a heterocyclic group
7 to 7 members are preferred, and specifically, a 2-furyl group,
2-thienyl group, 2-pyrimidinyl group, 2-benzothiazolyl group, 1-pyrrolyl group, 1-tetrazolyl group, etc .: As the heterocyclic oxy group, those having a 5- to 7-membered heterocyclic ring are preferable. 5,6-tetrahydropyranyl-2-oxy group, 1-phenyltetrazol-5-oxy group and the like: The heterocyclic thio group is preferably a 5- to 7-membered heterocyclic thio group, for example, a 2-pyridylthio group, Benzothiazolylthio group, 2,4-diphenoxy-1,3,5
-Triazole-6-thio group and the like: As the siloxy group,
Trimethylsiloxy group, triethylsiloxy group, dimethylbutylsiloxy group, etc .: succinimide group, 3-heptadecylsuccinimide group, phthalimide group, glutarimide group, etc. as imide group: Spiro compound as spiro compound residue [3.3 Heptan-1-yl and the like: As a bridged hydrocarbon compound residue, bicyclo [2.2.1] heptane-
1-yl, tricyclo [3.1.1 ^3.7 ] decane-1-
Yl, 7,7-dimethyl-bicyclo [2.2.1] heptane-1-yl and the like.

The above-mentioned groups may further have a substituent such as a long-chain hydrocarbon group or a diffusion-resistant group such as a polymer residue. Examples of the group capable of leaving by reaction with an oxidized form of the color developing agent represented by X ₂ include a halogen atom (chlorine, bromine, fluorine, etc.), alkoxy, aryloxy, heterocyclic oxy, acyloxy, sulfonyloxy, alkoxycarbonyloxy , Aryloxycarbonyl, alkyloxalyloxy, alkoxyoxalyloxy, alkylthio, arylthio, heterocyclic thio, alkyloxythiocarbonylthio, acylamino, sulfonamide, nitrogen-containing heterocyclic ring linked by N atom, alkyloxycarbonylamino, aryl Oxycarbonylamino, carboxyl,

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(R ₁₁ ′ has the same meaning as R ₁₁ , and Z ₂ ′
Has the same meaning as Z ₂ , and R _a and R _b each represent a hydrogen atom, an aryl group, an alkyl group or a heterocyclic group), but are preferably a hydrogen atom, a halogen atom, an alkoxy group, An aryloxy group, an alkylthio group, an arylthio group, and a nitrogen-containing heterocyclic group linked by an N atom. Preferred specific examples of the cyan coupler of the general formula (2) are represented by the following general formula (2a).

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In the formula, Z ₂ ″ represents a group of nonmetallic atoms necessary for forming a nitrogen-containing 6-membered ring containing at least one carbonyl group or at least one sulfonyl group by condensing with the pyrazole ring. And the 6-membered ring may have a substituent and may be condensed with a benzene ring in addition to the pyrazole ring, wherein R ₁₁ ″ and Y ₂ ″ represent a hydrogen atom or a substituent, and X ₂ ″ Has the same meaning as X ₂ in formula (2).

In the general formula (2), the nitrogen-containing 6-membered heterocyclic ring formed by Z is preferably a 6π electron system or an 8π electron system, and contains at least one —N (Y ₂ ) —
At least one carbonyl group containing from 4 to 4 nitrogen atoms represents a group such as -CO- or -CS-. Further, the at least one sulfonyl group the 6-membered ring contains -SO ₂ - represents a group.

Y ₂ represents a hydrogen atom or a substituent. Preferred substituents represented by Y ₂ are, for example, those which are eliminated from the compound of the present invention after reacting with the oxidized developing agent. However, for example, the substituent represented by Y ₂ is disclosed in
And groups capable of leaving under alkaline conditions, such as described in JP-A-228444, and JP-A-56-133732.
No., such as a substituent which is coupled off by reaction with an oxidized developing agent,
Preferably, Y ₂ is a hydrogen atom.

Among the cyan couplers represented by the general formula (2), preferred specific examples are the following general formulas (A) to (A).
The compound represented by (M) is mentioned.

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In the formula, R ₁₁ , R ₁₂ and R ₁₃ are represented by the general formula (2)
In the same meaning as R _11, X ₂ has the same definition as X ₂ in the general formula (2). In the general formulas (A), (F) and (K), p represents an integer of 0 to 4, and when p is 2 to 4, a plurality of R ₁₂ may be the same or different. General formula (J),
R ₁₂ and R ₁₃ in (L) and (M) are represented by the general formula (2)
Has the same meaning as R ₁₁ in R 1, but R ₁₂ is not a hydroxyl group, and Z ₂ ″ ′ represents an atomic group necessary for forming a heterocyclic ring.

Preferred groups represented by R ₁₂ and R ₁₃ are, for example, groups such as alkyl, aryl, carboxyl, oxycarbonyl, cyano, alkoxy, aryloxy, amino, amide and sulfonamide, and hydrogen, halogen and the like. It is. Cyan couplers of the general formula (2) are disclosed in Japanese Patent Application Nos. 63-321488 and 64-36.
No. 996, No. 64-41183, No. 64-52293
And the couplers described in U.S. Pat. it can.

The representative examples of the cyan coupler of the present invention represented by formula (1) or (2) are shown below, but the invention is not limited thereto. For example, JP-A No. 1-144052, p. Upper right column-C-1 described in the upper right column of page (9)
C-35, JP-A-4-133504 (6), lower right column of page
(12) Among A-1 to M-8 described in the lower right column of the page, couplers other than representative examples can be mentioned.

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[0101]

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[0103]

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[0104]

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The cyan coupler of the present invention is generally used in an amount of 1 × 10 ^-3 to 1 mol, preferably 1 × 10 ^-3 mol per mol of silver halide.
It can be used in the range of 10 ^-2 to 8 × 10 ^-1 mol.
Further, the cyan coupler of the present invention can be used in combination with another type of cyan coupler. In order to incorporate the cyan coupler of the present invention into the color photographic material of the present invention, known techniques used in ordinary cyan couplers can be applied. It is preferable to dissolve the coupler in a high-boiling solvent and, if necessary, in combination with a low-boiling solvent, to disperse the fine particles, and to add the coupler to a silver halide emulsion. At this time, if necessary, a hydroquinone derivative, an ultraviolet absorber, an anti-fading agent and the like may be used in combination.

Next, items of the silver halide light-sensitive material according to the present invention other than those described above will be described. The silver halide photographic light-sensitive material used in the present invention comprises a Y (yellow) image-forming silver halide emulsion layer, an M (magenta) image-forming silver halide emulsion layer, C
It has a (cyan) image-forming silver halide emulsion layer, and forms a Y dot image, an M dot image, and a C dot image, respectively. Further, in the present invention, the formation of the halftone dot image of black is performed by each of the Y, M, and C image forming layers.

In order to bring the color tone of the black image closer to that of the printing ink, it is necessary to appropriately design and combine the densities of the Y image, the M image, and the C image. At this time, the color tone of the solid portion of the black image (the black image portion where the halftone dot percentage is 100%) and the halftone portion (the portion where the tone is created by area modulation) may not always match. . The solid part is
Although the density is high and the deviation of the color tone from the color tone ink is relatively large in tolerance, the color tone of the intermediate gradation often has a great influence on the image quality and is an important quality item.

In the present invention, the difference between the highest dot gain and the lowest dot gain among the dot gains measured by BGR decomposition of the black dot image is within 6%.
It is preferable because the color tone of the black dot image is close to the color tone of the black dot image of the printed matter, and if it exceeds 6%, the color tone of the black dot image will be greatly deviated from printing. Here, the dot gain means that the dot area ratio of the black dot image information of the document is 50%.
When the value is%, the reproduced black dot image is decomposed into BGR and represented by a value obtained by subtracting 50 from the value of the dot area ratio (%) measured. It is preferable that the difference between the maximum dot gain value and the minimum dot gain value among the obtained three dot gains is 6%. The dot gain uses a value calculated using the Murray-Davis formula.

In the present invention, scanning exposure is performed on a color photosensitive material based on halftone image information consisting of color-separated yellow, magenta, cyan, and black image information.
In the step of producing a color proof, at least a part of the halftone image information is converted to a halftone image such that the number of halftone dots per inch ² is 200 × 103 or more when the halftone dot area ratio is 40%. It has a particularly remarkable effect when using a material that has been used. Preferably 300 × 1
03 or more, more preferably 400 × 103 or more, especially 4
00 × 103 to 2000 × 103 is preferred. The number of the halftone dots can be measured by counting halftone images captured by an optical microscope or the like.

As the silver halide emulsion used for the light-sensitive material of the present invention, a surface latent image type silver halide emulsion which forms a latent image on the surface by image exposure is used, and a negative image is formed by performing development. Emulsions may be used. Further, using an internal latent image type silver halide emulsion in which the surface of the grains is not fogged in advance, fog treatment (nucleation) after image exposure and then surface development, or fog treatment after image exposure. Emulsions capable of directly obtaining a positive image by performing surface development while performing such development can also be preferably used. The emulsion containing the internal latent image type silver halide emulsion grains is a silver halide grain having a photosensitive nucleus mainly inside silver halide crystal grains and forming a latent image inside the grains upon exposure. Containing emulsion.

The fogging treatment may be carried out by exposing the entire surface, chemically using a fogging agent, using a strong developing solution, or further by heat treatment. The entire surface exposure is performed by immersing or moistening the image-exposed photosensitive material in a developing solution or other aqueous solution, and then performing uniform exposure over the entire surface.
Further, the time of the entire surface exposure can be varied over a wide range so as to finally obtain the best positive image depending on the photosensitive material, the development processing conditions, the type of the light source used, and the like. In addition, it is most preferable that the exposure amount of the entire surface exposure be given in a certain fixed range in combination with the photosensitive material. Normal,
If the exposure amount is excessively increased, the minimum density increases or desensitization occurs, and the image quality tends to decrease.

As a technique for fogging agents which can be used in the light-sensitive material of the present invention, it is preferable to use the technique described in JP-A-6-95283, page 18, right column, line 39 to page 19, left column, line 41. Pre-fogged internal latent image type silver halide grains that can be used in the light-sensitive material of the present invention mainly form a latent image inside the silver halide grains,
An emulsion having silver halide grains having most of the photosensitive nuclei inside the grains, comprising any silver halide such as silver bromide, silver chloride, silver chlorobromide, silver chloroiodide, and silver iodobromide. And silver chloroiodobromide.

Particularly preferably, the coated silver amount is about 1 to 3.5.
A portion of the sample, coated on a transparent support in the range of g / m ² , is exposed to a light intensity scale for a defined period of time from about 0.1 seconds to about 1 second, and is substantially exposed to light. Containing no silver halide solvent, and developing at 20 ° C. for 4 minutes using the following surface developer A for developing only the surface image of the grains,
Another part of the same emulsion sample is also exposed to light and develops an image inside the grains. The maximum density not greater than 1/5 of the maximum density obtained when developed at 20 ° C. for 4 minutes with the following internal developing solution B This is an emulsion showing the density. More preferably, the maximum density obtained with the surface developer A is not greater than 1/10 of the maximum density obtained with the internal developer B. (Surface developer A) Methol 2.5 g L-ascorbic acid 10.0 g Sodium metaborate (tetrahydrate) 35.0 g Potassium bromide 1.0 g Add water 1000 ml (Internal developer B) Methol 2.0 g Sulfurous acid Sodium (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 added to 1000 ml Internal latent image type halogenation preferably used in the present invention Silver emulsions include those prepared by various methods. For example, a conversion-type silver halide emulsion described in U.S. Pat. No. 2,592,250, U.S. Pat. No. 3,206,316.
Nos. 3,317,322 and 3,367,778
No. 3,271,157 having internally chemically sensitized silver halide grains.
No. 3,447,927, emulsions having silver halide grains containing polyvalent metal ions, and silver halides containing a dopant described in U.S. Pat. No. 3,761,276. Silver halide emulsions in which the grain surfaces of the grains are weakly chemically sensitized, JP-A-50-8524, JP-A-50-8524;
And silver halide emulsions comprising grains having a laminated structure described in JP-A Nos. 38525 / 535-2408 and others, and JP-A Nos. 52-156614 and 55-1275.
No. 49, for example.

The silver halide grains used in the present invention may be cubic, octahedral, tetradecahedral composed of a mixture of (100) and (111) planes, shapes having a (110) plane, spheres, flat plates and the like. Any one may be used. Average particle size is 0.0
Those having a size of 5 to 3 μm can be preferably used. The grain size distribution may be a monodisperse emulsion having a uniform grain size and crystal habit or an emulsion having no uniform grain size or crystal habit, but a monodisperse silver halide emulsion having a 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 in the range of ± 20% of the center of the average particle diameter rm is 60% or more of the total weight of silver halide grains. And preferably 70% or more, more preferably 80% or more. here,
The average particle size rm is defined as the frequency ni and r of the particles having the particle size ri.
The particle size ri when the product ni × ri3 with i3 is the maximum is defined (three significant figures and the smallest figure are rounded off to the nearest 4).
The particle size referred to here is the diameter of spherical silver halide grains, or the diameter of a projected image converted to a circular image of the same area for grains having a shape other than spherical. . The particle size can be obtained, for example, by photographing the particles with an electron microscope at a magnification of 10,000 to 50,000 times and actually measuring the particle diameter on the print or the area at the time of projection (the number of measured particles is 1000 or more indiscriminately).

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 particles by pAg
And controlled pH and addition by the double jet method. In determining the addition rate, JP-A-54-48521 and JP-A-58-49938 can be referred to. As a method for obtaining a more highly monodispersed emulsion, the growth method in the presence of a tetrazaindene compound disclosed in JP-A-60-122935 can be applied.

It is also preferable to add two or more monodisperse emulsions to the same color-sensitive layer. The particle size of each emulsion layer used in the light-sensitive material of the present invention is determined from a wide range in consideration of the required properties, particularly various characteristics such as sensitivity, sensitivity balance, sharpness of color separation, and granularity. be able to. In a preferred embodiment, the silver halide has a grain size of 0.1 to 0.6 .mu.m for the red-sensitive layer emulsion, 0.15 to 0.8 .mu.m for the green-sensitive layer emulsion and 0.1 to 0.8 .mu.m for the blue-sensitive layer emulsion. 3 to 1.2μ
The range of m can be preferably used.

The silver halide emulsion according to the present invention can be used in combination with a sensitization method using a gold compound and a sensitization method using a chalcogen sensitizer. As a chalcogen sensitizer to be applied, a sulfur sensitizer, a selenium sensitizer, a tellurium sensitizer, or the like can be used, but a sulfur sensitizer is preferable. Examples of the sulfur sensitizer include thiosulfate, allylthiocarbamide, thiourea, allylisothiocyanate, cystine, p-toluenethiosulfonate, rhodanine, and inorganic sulfur.

[0120] The addition amount of the sulfur sensitizer, it is preferable to change the size, etc. of the effect of the type of silver halide emulsions applied or expectations, per mol of silver halide 5 × 10 ^-10 to 5 × 10 ^-5 mol, more preferably a 5 × 10 ^-8 ~3 × 10 ^- is a ⁵ mols. As the gold sensitizer, various gold complexes such as chloroauric acid and gold sulfide can be added. Examples of the ligand compound used include dimethyl rhodanine, thiocyanic acid, mercaptotetrazole, mercaptotriazole and the like. The amount of the gold compound, the kind of silver halide emulsion, the type of compound used, but are not and ripening conditions, is usually 1 mol of silver halide per 1 × 10 ^-4 to 1
It is preferably × 10 ⁻⁸ mol. More preferably, 1
It is from × 10 ^-5 to 1 × 10 ^-8 mol.

The chemical sensitization of a silver halide emulsion includes the following.
A reduction sensitization method may be used. The light-sensitive material preferably contains a nitrogen-containing heterocyclic compound having a mercapto group. Preferred compounds are those represented by general formula [XI] described in JP-A-6-95283, page 19, right column, lines 20 to 49, particularly preferably described in JP-A-6-95283, page 20, left column, lines 5 to page 20, right column, line 2 [XII] to [XIV]. Specific examples of the compound include, for example, JP-A-64-73338, 11
To (p. 15) to (39).

[0122] The above mercapto compound may vary appropriately depending on the kind and layer the addition of compounds to be used as an additive amount, in general, when added to a silver halide emulsion layer, per mol of silver halide 10 ^{- It is in} the range of ⁸ to 10 ^-2 mol, more preferably 10 ^-6 to 10 ^-3 mol. In the silver halide light-sensitive material according to the present invention, 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 each have a different spectral sensitivity wavelength region. And the yellow, magenta and cyan image-forming silver halide emulsion layers are contained in at least one of the above-mentioned yellow, magenta and cyan image-forming silver halide emulsion layers. It is preferable that the emulsion contains a silver halide emulsion having a common spectral sensitivity portion with any of the emulsions having different spectral sensitivity wavelength regions.

The silver halide emulsion can be optically sensitized by a commonly used sensitizing dye. Use of 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, is also useful for the silver halide emulsion in the present invention. Sensitizing dyes are described in Research Disclosure (hereinafter referred to as R).
D) 15162 and 17643 can be referred to.

In the present invention, it is preferable to provide an infrared-sensitive silver halide emulsion layer. The infrared-sensitive silver halide emulsion layer has a spectral sensitivity maximum at a wavelength longer than 700 nm. As such a method of infrared spectral sensitization, a sensitization method using an infrared sensitizing dye is particularly preferably used. The infrared sensitizing dye used in the present invention is not particularly limited, but tricarbocyanine and / or a dicarbocyanine dye containing a 4-quinoline nucleus is preferable.
Among them, tricarbocyanine is particularly preferred.

Among the tricarbocyanines, particularly useful ones are represented by the following general formula [Ia] or [Ib].

[0126]

Embedded image

In the formula, R ¹ and R ² may be the same or different and each represents an alkyl group (preferably having 1 carbon atom).
-18, methyl, ethyl, propyl, butyl, pentyl, heptyl, etc.), substituted alkyl group (carboxyl group, sulfo group, cyano group, halogen atom (fluorine, chlorine, bromine etc.), hydroxyl group, alkoxycarbonyl group as a substituent) (C 8 or less, methoxycarbonyl,
Ethoxycarbonyl, benzyloxycarbonyl, etc.),
An alkoxy group (C7 or less, methoxy, ethoxy, propoxy, butoxy, benzyloxy, etc.), an aryloxy group (phenoxy, p-tolyloxy, etc.), an acyloxy group (C3 or less, acetyloxy, propionyloxy, etc.) An acyl group (having 8 or less carbon atoms,
Acetyl, propionyl, benzoyl, mesyl, etc.), carbamoyl group (carbamoyl, N, N-dimethylcarbamoyl, morpholinocarbamoyl, piberidinocarbamoyl, etc.), sulfamoyl group (sulfamoyl, N, N
-Dimethylsulfamoyl, morpholinosulfonyl, etc.), aryl groups (phenyl, p-hydroxyphenyl, p-carboxyphenyl, p-sulfophenyl, α
-Naphthyl or the like) or the like (an alkyl moiety having 6 or less carbon atoms). However, this substituent may be substituted with an alkyl group in combination of two or more).

R ³ represents a hydrogen atom, a methyl group, a methoxy group or an ethoxy group. R ⁴ and R ⁶ each represent a hydrogen atom, a lower alkyl group (eg, methyl, ethyl, propyl), a lower alkoxy group (eg, methoxy, ethoxy, propoxy, butoxy), a phenyl group, or a benzyl group. R ⁵ is a hydrogen atom, a lower alkyl group (methyl, ethyl, propyl, etc.),
Lower alkoxy groups (methoxy, ethoxy, propoxy,
Butoxy), phenyl group, benzyl group or -N
(W ¹ ) and (W ² ). Here, W ¹ and W ² each represent a substituted or unsubstituted alkyl group (1 to 18, preferably 1 to 4 carbon atoms in the alkyl portion; methyl, ethyl, propyl, butyl, benzyl, phenethyl and the like) or aryl Represents a group (phenyl, naphthyl, tolyl, p-chlorophenyl, etc.), and W ¹ and W ² may be linked to each other to form a 5- or 6-membered nitrogen-containing heterocyclic ring.

D represents a group of atoms necessary for completing a divalent alkylene bond, for example, ethylene or triethylene;
The alkylene linkage may be one, two or more suitable groups, for example an alkyl group having 1 to 4 carbon atoms (methyl,
Even when substituted with a halogen atom (such as chlorine or bromine) or an alkoxy group (having 1 to 4 carbon atoms, methoxy, ethoxy, propoxy, i-propoxy, butoxy, etc.), etc. Good.

D ¹ and D ² each represent a hydrogen atom.
¹ and D ² may be bonded to each other to form a divalent alkylene bond having the same meaning as D. Z ¹ and Z ² each represent a group of non-metallic atoms necessary to complete a 5- or 6-membered nitrogen-containing heterocyclic ring, for example, a thiazole nucleus (benzothiazole, 4-
Chlorobenzothiazole, 5-chlorobenzothiazole, 6-chlorobenzothiazole, 7-chlorobenzothiazole, 4-methylbenzothiazole, 5-methylbenzothiazole, 6-methylbenzothiazole, 5-bromobenzothiazole, 6-bromobenzo Thiazole,
5-iodobenzothiazole, 5-phenylbenzothiazole, 5-methoxybenzothiazole, 6-methoxybenzothiazole, 5-ethoxybenzothiazole, 5
-Carboxybenzothiazole, 5-ethoxycarbonylbenzothiazole, 5-phenethylbenzothiazole, 5-fluorobenzothiazole, 5-trifluoromethylbenzothiazole, 5,6-dimethylbenzothiazole, 5-hydroxy-6-methylbenzothiazole, Tetrahydrobenzothiazole, 4-phenylbenzothiazole, naphtho [2,1-d] thiazole, naphtho [1,2-d] thiazole, naphtho [2,3-d] thiazole, 5-methoxynaphtho [1,2-d Thiazole, 7-ethoxynaphtho [2,1-d] thiazole, 8
-Methoxynaphtho [2,1-d] thiazole, 5-methoxynaphtho [2,3-d] thiazole and the like; a selenazole nucleus (benzoselenazole, 5-chlorobenzoselenazole, 5-methoxybenzoselenazole, 5- Methylbenzoselenazole, 5-hydroxybenzoselenazole, naphtho [2,1-d] selenazole, naphtho [1,
2-d] selenazole and the like; an oxazole nucleus (benzoxazole, 5-chlorobenzoxazole, 5-methylbenzoxazole, 5-bromobenzoxazole, 5-fluorobenzoxazole, 5-phenylbenzoxazole, 5-methoxybenzoxazole,
5-trifluorobenzoxazole, 5-hydroxybenzoxazole, 5-carboxybenzoxazole, 6-methylbenzoxazole, 6-chlorobenzoxazole, 6-methoxybenzoxazole, 6-
Hydroxybenzoxazole, 4,6-dimethylbenzoxazole, 5-ethoxybenzoxazole, naphtho [2,1-d] oxazole, naphtho [1,2-
d] oxazole, naphtho [2,3-d] oxazole and the like; quinoline nucleus (2-quinoline, 3-methyl-2-quinoline, 5-ethyl-2-quinoline, 6-methyl-2-
Quinoline, 8-fluoro-2-quinoline, 6-methoxy-2-quinoline, 6-hydroxy-2-quinoline, 8-
Chloro-2-quinoline, 8-fluoro-4-quinoline, etc.); 3,3-dialkylindolenin nucleus (3,3-dimethylindolenin, 3,3-diethylindolenin,
3,3-dimethyl-5-cyanoindolenine, 3,3-
Dimethyl-5-methoxyindolenine, 3,3-dimethyl-5-methylindolenine, 3,3-dimethyl-5-
Chloroindolenine, etc.); imidazole nucleus (1-methylbenzimidazole, 1-ethylbenzimidazole,
1-methyl-5-chlorobenzimidazole, 1-ethyl-5-chlorobenzimidazole, 1-methyl-5
6-dichlorobenzimidazole, 1-ethyl-5,6
-Dichlorobenzimidazole, 1-alkyl-5-methoxybenzimidazole, 1-methyl-5-cyanobenzimidazole, 1-ethyl-5-cyanobenzimidazole, 1-methyl-5-fluorobenzimidazole, 1-ethyl-5 -Fluorobenzimidazole, 1
-Phenyl-5,6-dichlorobenzimidazole, 1
-Allyl-5,6-dichlorobenzimidazole, 1-
Allyl-5-chlorobenzimidazole, 1-phenylbenzimidazole, 1-phenyl-5-chlorobenzimidazole, 1-methyl-5-trifluoromethylbenzimidazole, 1-ethyl-5-trifluoromethylbenzimidazole, 1- Ethyl naphtho [1,2-
d] Imidazole and the like; pyridine nucleus (pyridine, 5-methyl-2-pyridine, 3-methyl-4-pyridine and the like) and the like.

Of these, thiazole nuclei and oxazole nuclei are advantageously used. More preferably, a benzothiazole nucleus, a naphthothiazole nucleus, a naphthoxazole nucleus or a benzoxazole nucleus is advantageously used. X ₁ ^- represents an acid anion, p is represents 1 or 2. Among the 4-quinoline nucleus-containing dicarbocyanine dyes used in the present invention, particularly useful ones are represented by the following general formula [II].

[0132]

Embedded image

In the formula, R ¹¹ and R ¹² each represent the above R ¹
And it represents the R ² group having the same meaning as. R ¹³ represents a group having the same meaning as R ⁴ . However, R ¹³ is preferably a lower alkyl group or a benzyl group. V represents a hydrogen atom, a lower alkyl group (eg, methyl, ethyl, propyl), an alkoxy group (eg, methoxy, ethoxy, butoxy), a halogen atom (eg, fluorine, chlorine), or a substituted alkyl group (eg, trifluoromethyl, carboxymethyl). Represent.

Z ³ represents the same group as Z ¹ and Z ² .
X ₂ ^- and p are each represented by the general formulas [Ia] and [Ib].
Has the same meaning as X ₁ ^- and p, and q and r each represent 1 or 2. Specific examples of these infrared sensitizing dyes are disclosed in
No. 40646, I-1 to II described on pages (6) to (9)
-21. Further, the compounds described in JP-A-4-330439 and the compounds described in JP-A-8-101486 can also be used, but are not limited thereto.

As the magenta coupler contained in the magenta image forming layer of the present invention, a compound represented by the general formula [M-1] described in the right column of page 7 of JP-A-6-95283 may be used.
The coloring dye has good spectral absorption characteristics and is preferable. Preferred examples of the compound include compounds M-1 to 8 to 11 described in the same publication.
M-19 can be mentioned. Still other specific examples include compounds M-1 to M-61 and 0,23 described in EP-A-0,273,712, pp. 6-21.
Compound 1 described in 5,913, pp. 36-92.
223 are other than the specific examples described above.

The above magenta couplers can be used in combination with other types of magenta couplers, and are usually 1 × 10 ^-3 to 1 mol, preferably 1 × 10 ^-3 mol per mol of silver halide.
^-2 to 8 × 10 ^-1 mol can be used. The λ _max of the spectral absorption of the magenta image formed in the photosensitive material according to the present invention is preferably 530 to 560 nm, and the λ L _0.2 is preferably 580 to 635 nm.

Here, λL of the spectral absorption of the magenta image
_0.2 and λ _max are quantities measured by the following method. When using a positive emulsion in the photosensitive material (method of measuring .lambda.L _0.2 and lambda _max), and uniformly exposed with red light minimal amount of light the color light-sensitive material a minimum density of the cyan images obtained, and a minimum of a yellow image After uniformly exposing with the minimum amount of blue light to obtain the density, applying white light through an ND filter, and developing, attach an integrating sphere to the spectrophotometer and zero-correct with a standard white plate of magnesium oxide Then 500
A magenta image is produced by adjusting the density of the ND filter so that the maximum value of the absorbance when measuring the spectral absorption of about 700 nm becomes 1.0. Magenta coupler,
When a negative-type emulsion is used as a light-sensitive material, when a magenta image is formed by applying green light through an ND filter and developing to form a magenta image, the same maximum absorbance as that of the above positive is obtained.
Adjust the density of the D filter. λL _0.2 refers to a wavelength at which the absorbance of the magenta image is longer than the wavelength at which the maximum absorbance is 1.0 and the absorbance is 0.2 at the spectral absorbance curve.

The magenta image forming layer of the light-sensitive material of the present invention preferably contains a yellow coupler in addition to the magenta coupler. The difference in pKa between these couplers is preferably within 2 and more preferably 1.5.
Within. The preferred yellow coupler is represented by the general formula [Y-I] described in JP-A-6-95283, page 12, right column.
a). The general formula [Y-Ia]
Particularly preferred among the couplers represented by the formula (1) are, when combined with the magenta coupler represented by the general formula [M-1], a pKa value not lower than the pKa of the coupler represented by the combination [M-1] by 3 or more. Is a coupler having

Specific examples of the compound as the yellow coupler are described in JP-A-6-95283, pp. 12-13.
-1 and Y-2, JP-A-2-139542 13-
(Y-1) to (Y-58) described on page 17 can be preferably used, but are not limited thereto. As the yellow coupler contained in the yellow image forming layer, known acylacetanilide-based couplers and the like can be preferably used. Specific examples of the yellow coupler include compounds represented by Y-I-1 to Y-I-55 described in JP-A-3-241345, pages 5 to 9, or JP-A-3-209466, pages 11 to 14. Y- described in
Compounds represented by 1 to Y-30 can also be preferably used.
Furthermore, couplers represented by the general formula [Y-I] described in JP-A-6-95283, page 21, can also be mentioned.

In the present invention, λ _max of the spectral absorption of the formed yellow image is preferably 425 nm or more, and λ L _0.2 is preferably 515 nm or less. The yellow coupler can be used in the silver halide emulsion layer in an amount of 1 × 10 ^-3 to 1 mol, preferably 1 × 10 ^-2 to 8 × 10 ^-1 mol, per mol of silver halide.

An anti-fading agent can be used in combination with each of the magenta, cyan, and yellow couplers to prevent fading of the formed dye image due to light, heat, humidity, and the like. Preferable compounds include phenyl ether compounds represented by formulas I and II described in page 3 of JP-A-2-66541 and formula IIIB described in JP-A-3-174150.
A phenolic compound represented by
5, an amine compound represented by the general formula A described in JP-A-6-182741, a compound represented by the general formula XII, XIII, XIV,
The metal complex represented by XV is particularly preferred for magenta dyes. Further, the compounds represented by the general formula I 'described in JP-A-1-19649 and the compounds represented by the general formula II described in JP-A-5-11417 are particularly preferred for yellow and cyan dyes.

When an oil-in-water emulsion dispersion method is used to add a coupler or other organic compound used in a light-sensitive material, it is usually added to a water-insoluble high-boiling organic solvent having a boiling point of 150 ° C. or higher, if necessary. To dissolve in combination with a low boiling point and / or water-soluble organic solvent, and emulsify and disperse in a hydrophilic binder such as an aqueous gelatin solution using a surfactant. As a dispersing means, a stirrer, a homogenizer, a colloid mill,
A flow jet mixer, an ultrasonic disperser or the like can be used. After or simultaneously with the dispersion, a step of removing the low-boiling organic solvent may be added.

Examples of the high boiling organic solvent which can be used for dissolving and dispersing the coupler and the like include phthalic acid esters such as dioctyl phthalate, di-i = decyl phthalate and dibutyl phthalate, tricresyl phosphate and trioctyl. Phosphate esters such as phosphates and phosphine oxides such as trioctylphosphine oxide are preferably used. The high-boiling organic solvent preferably has a dielectric constant of 3.5 to 7.0. Of course, two or more high-boiling organic solvents can be used in combination. Particularly preferred compounds as high-boiling organic solvents are those represented by the general formula [HBS-
Compounds represented by I] and [HBS-II], particularly preferably compounds represented by [HBS-II]. Specific compounds include, for example, compounds I-1 to II-95 described in JP-A-2-124568, pp. 53-68.

Preferred compounds as surfactants used for dispersing photographic additives used in photosensitive materials and adjusting the surface tension during coating are those having 8 to 3 carbon atoms per molecule.
Those containing 0 hydrophobic groups and a sulfo group or a salt thereof are mentioned. Specific examples include A-1 to A-11 described in JP-A-64-26854. Further, a surfactant in which a fluorine atom is substituted for an alkyl group is also preferably used.
These dispersions are usually added to a coating solution containing a silver halide emulsion, but the shorter the time from dispersion to the time of addition to the coating solution, and the shorter the time from addition to the coating solution to coating. Often, both are preferably within 10 hours, more preferably within 3 hours and within 20 minutes.

In the light-sensitive material, a compound which reacts with an oxidized developing agent is added to a layer between the light-sensitive layers to prevent color turbidity, or is added to a silver halide emulsion layer to prevent fog or the like. Is preferably improved. As the compound for this, a hydroquinone derivative is preferred, and more preferably
Dialkylhydroquinones such as 5-di-t-octylhydroquinone. Particularly preferred compounds are those represented by the general formula ii described in JP-A-4-133,056, and the compounds II-1 to II-14 described on pages 13 to 14 of the publication.
Compounds 1 described on pages II-14 and 17 are mentioned.

It is preferable to add an ultraviolet absorber to the light-sensitive material to prevent static fog and to improve the light fastness of the dye image. Preferable examples of the ultraviolet absorber include benzotriazoles. Particularly preferable compounds are those represented by the general formula III described in JP-A-1-250944.
A compound represented by general formula III described in JP-A-64-66646;
No. 240, UV-1L to UV-27L;
Compounds represented by the general formula I described in JP-A-1633 and compounds represented by the general formulas (I) and (II) described in JP-A-5-165144.

It is preferable that the light-sensitive material contains an oil-soluble dye or pigment because the whiteness is improved. Representative specific examples of the oil-soluble dyes include compounds 1 to 27 described in pages (8) to (9) of JP-A-2-842. In the present invention, an image is formed by exposing with a laser light source or a light emitting diode light source having a wavelength corresponding to the spectral wavelength region of each silver halide emulsion layer. At least one of the reflection densities of the undeveloped samples thus obtained is 0.8 or more, more preferably 1.0 or more.

The reflection density of the undeveloped sample can be measured by a conventionally known method. For example, the value of the spectral reflection density measured using a color analyzer 607 manufactured by Hitachi, Ltd. can be used. As a method of adjusting the reflection density to 0.8 or more before the development processing, a method of adding a water-soluble dye having absorption at least in a spectral sensitivity region of the silver halide emulsion and / or a method of adding a water-soluble dye to the lowermost layer or other layers A method of providing antihalation is preferable. Further, there is a method in which a dye is contained in the photosensitive material as solid fine powder to suppress diffusion of the dye in the photosensitive material.

The water-soluble dye used in the present invention includes:
Oxonol, cyanine, merocyanine, azo, anthraquinone, arylidene, and other dyes.Examples include oxonol from the viewpoint of high resolution in a development processing bath and non-sensitization to a silver halide emulsion. Dyes and merocyanine dyes. Oxonol dyes include U.S. Pat. No. 4,187,225 and JP-A-48-42.
No. 826, No. 49-5125, No. 49-99620
No. 50-91627, No. 51-77327, No. 55-120660, No. 58-24139, No. 58
No. 143342, No. 59-38742, No. 59-1
Nos. 11640, 59-111641, 59-16
No. 8438, No. 60-218641, No. 62-319
No. 16, No. 62-66275, No. 62-66276
No. 62-185755, No. 62-273527
And No. 63-139949. or,
As the merocyanine dye, JP-A-50-145124
No. 58-120245, No. 63-35437,
63-35438, 63-34539, 63
-58437.

Typical specific examples of oxonol dyes and merocyanine dyes include water-soluble yellow dyes AIY-1 to AIY-14 described in Japanese Patent Application No. 7-150291.
Similarly, water-soluble magenta dyes AIM-1 to AIM-14,
Similarly, water-soluble cyan dyes AIC-1 to AIC-14 can be mentioned. Next, typical examples of water-soluble dyes other than oxonol dyes and merocyanine dyes include water-soluble yellow dye A described in Japanese Patent Application No. 7-150291.
IY-15 to AIY-18, AIM-15 to AIM-1
8, AIC-15 to AIC-18.

Examples of the water-soluble dyes usable in the present invention include A-1 to A-4 described in JP-A-4-330337.
And 3 dyes. The amount of the water-soluble dye to be used is selected and added so that the reflection density of the sample before development processing measured at the laser wavelength at which the photosensitive material is exposed is 0.8 or more. The water-soluble dyes can be used alone or in combination of two or more.

In the present invention, an antihalation layer may be provided on the lowermost layer or another layer. The antihalation layer contains a compound that absorbs light. Examples of the compound that absorbs light include various organic compounds and inorganic compounds having the action. As the inorganic compound, colloidal silver, colloidal manganese and the like are preferable, and colloidal silver is particularly preferable. Since these colloidal metals have good decolorization properties, they are also effective when applied to the color light-sensitive material of the present invention.

The above colloidal silver, for example, gray colloidal silver, is reduced by keeping silver nitrate alkaline in gelatin in the presence of reducing agents such as hydroquinone, phenidone, ascorbic acid, pyrogallol or dextrin, and then neutralizing. It is obtained by cooling and setting gelatin, and then removing the reducing agent and unnecessary salts by a noodle washing method. When the colloidal silver particles are formed in the presence of an azaindene compound or a mercapto compound during the reduction with an alkali, a colloidal silver dispersion of uniform particles can be obtained.

The amount of the colloidal silver applied is selected so that the reflection density of the sample before development processing measured at at least one wavelength in the exposure area for cyan image-forming silver halide is 0.8 or more. Can be added. The light-sensitive material of the present invention comprises, in a solid dispersion state, a dye having at least one of a carboxyl group, a sulfonamide group and a sulfamoyl group in an arbitrary silver halide emulsion layer and / or other hydrophilic colloid photographic constituent layers. Can be contained.

The dye having at least one of a carboxyl group, a sulfamoyl group and a sulfonamide group is specifically a dye represented by the following general formulas [1] to [8].

[0156]

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In the general formula [1], R₁And R_TwoIs each
Hydrogen, alkyl, alkenyl, aryl
Group, heterocyclic group, -COOR_Five, -COR_Five, -SO_TwoR_Five,
-SOR _Five, -SO_TwoN (R_Five) R₆, -CON (R_Five)
R₆, -N (R_Five) R₆, -N (R_Five) SO_TwoR₆, -N (R
_Five) COR₆, -N (R_Five) CON (R₆) R₇, -N
(R_Five) CSN (R₆) R₇, -OR_Five, -SR_FiveOr sheer
R represents_ThreeAnd R_FourIs a hydrogen atom, an alkyl
Group, alkenyl group, cycloalkyl group, aryl group or
Represents a heterocyclic group. R_Five, R₆And R₇Is a hydrogen atom,
Alkyl, alkenyl, aryl or heterocyclic groups
Represents, L₁~ L_FiveRepresents a methine chain. n₁Is an integer of 0 or 1
Represents a number, n_TwoRepresents an integer of 0 to 2.

[0158]

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In the general formula [2], R ₁ , R ₃ , L ₁
L ₅ , n ₁ and n ₂ have the same meanings as R ₁ , R ₃ , L _{1 to} L ₅ , n ₁ and n ₂ in the general formula [1], respectively, and E is an oxonol dye. Represents an acidic nucleus required for

[0160]

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In the general formula [3], R ₃ , R ₄ , L _1-
L ₅ , n ₁ and n ₂ represent the same meanings as R ₃ , R ₄ , L _{1 to} L ₅ , n ₁ and n ₂ in the general formula [1], respectively, and R ₈ and R ₉ represent R ₃ represents the same meaning as R _4. X ₁
And X ₂ each represent an oxygen atom or a sulfur atom.

[0162]

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In the general formula [4], R ₃ , L ₁ and L ₂
Represents the same meaning as R ₃ , L ₁ and L ₂ in the general formula [1], and E represents the same meaning as E in the general formula [2]. R ₁₀ and R ₁₁ are each a hydrogen atom, an alkyl group, an alkenyl group, an aryl group, a heterocyclic group, a nitro group,
A cyano group, a halogen _{atom, -OR 5, -SR 5, -N} (R
_{5) R 6, -N (R} 5) SO 2 R 6, -N (R 5) COR 6,
-COR ₅ or represents a -COOR _5. It is also possible to form a ring double bond in R ₁₀ and R _11.

X ₃ is an oxygen atom, a sulfur atom, a selenium atom,
— (R ₁₂ ) C (R ₁₃ ) — or —N (R ₃ ) —
R _3, R ₅ and R ₆ each represent a same meaning as R _3, R ₅ and R ₆ in the general formula (1). R ₁₂ and R ₁₃ each represent a hydrogen atom or an alkyl group. n ₃ represents an integer of 1 to 3.

[0165]

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In the general formula [5], R_Three, R_Four, L₁,
L_Two, L_ThreeAnd n₁Is R in the general formula [1]_Three, R_Four,
L₁, L_Two, L_ThreeAnd n₁Has the same meaning as
Has the same meaning as E in the general formula [2]. R_TenPassing
And R₁₁Is R in the general formula [4] _TenAnd R₁₁And each
Represents the same meaning, R₁₄Is R_TenRepresents the same meaning as

[0167]

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In the general formula [6], R ₃ , R ₄ , L ₁ 〜
L ₅ , n ₁ and n ₂ represent R ₃ , R ₄ , L ₁ in the general formula [1].
Each represent the same meaning as ~L _5, n ₁ and n _2,
R ₁₀ , R ₁₁ and X ₃ represent R ₁₀ , R ₁₁ in the general formula [4].
And X ₃ each have the same meaning. X ₄ is X ₃ and R
₁₅ and R ₁₆ each have the same meaning as R ₁₀ . X ^- represents a group having an anion. Also, R ₁₀ and R _11, R ₁₅ and R ₁₆
Can form a ring double bond.

[0169]

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In the general formula [7], A ₁ represents a pyrrole nucleus, an imidazole nucleus, a pyrazole nucleus, a phenol nucleus, a naphthol nucleus or a condensed heterocyclic ring.

[0171]

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In the general formula [8], Z ₁ , Z ₂ and Z ₃
Each represents an electron-withdrawing group, and A ₂ represents an aryl group or a heterocyclic group. Specific examples of the dyes represented by the above general formulas [1] to [8] are described in Japanese Patent Application No. 7-150291.
8-7 can be mentioned. The dye having at least one of a carboxyl group, a sulfonamide group, and a sulfamoyl group is a compound having a hydrophilic group which is substantially water-insoluble (with respect to water having a pH of 7 or less) and dissociates at a pH of 9 or more. Solid fine particle dispersion obtained by dispersing in a gelatin solution by dissolving it in an organic solvent and dispersing in a gelatin solution (in the form of group particles having microscopic dimensions, the average particle diameter is preferably 10 μm or less) (Preferably 1 μm or less) in gelatin or a polymer binder, whereby it can be contained in any photosensitive emulsion layer or non-photosensitive hydrophilic colloid layer in a photographic component layer.

The above carboxyl group, sulfonamide group,
The solid fine particle dispersion of the dye having at least one sulfamoyl group is water-insoluble and stably present in the light-sensitive material, but after exposure, is treated with a color developing solution (preferably at pH 9 or more). When the hydrophilic group in the dye compound is dissociated to become water-soluble or decolorized, most of the dye is lost from the light-sensitive material.

Carboxyl group, sulfonamide group, sulfone
The dye having at least one famoyl group is at least two types.
Or a water-soluble dye depending on the purpose of use.
Some may be used together. Carboxyl group, sulfonamide
Group, a dye having at least one sulfamoyl group
The content is based on the exposure to cyan image-forming silver halide.
Before development measured at least one wavelength in the region
Select the amount so that the reflection density of the raw sample is 0.8 or more.
Can be added. Specifically, generally 0.001 to 0.5
g / m ^TwoIt is preferably used so that

In the light-sensitive material of the present invention, the reflection density of the raw sample at the maximum wavelength of the spectral sensitivity of the cyan image-forming silver halide emulsion layer is preferably 0.7 or more. The above-mentioned light-sensitive material can be obtained by including a dye having an absorption at the above-mentioned wavelength and a coloring material such as black colloidal silver in any of the photographic constituent layers. The layer containing the dye or colloidal silver is not particularly limited, but is preferably contained in a non-photosensitive hydrophilic colloid layer between the support and the emulsion layer closest to the support.

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

It is preferable to include a fluorescent whitening agent in the light-sensitive material and / or the processing solution of the present invention in order to improve the whiteness. Gelatin is preferably used as a binder in the photosensitive material. In particular, in order to remove colored components of gelatin, gelatin extract is subjected to hydrogen peroxide treatment, ossein as a raw material is extracted from hydrogen peroxide treated, or ossein produced from uncolored bone. The use of gelatin having improved transmittance is preferred. Gelatin may be any of alkali-treated ossein gelatin, acid-treated gelatin, gelatin derivative, modified gelatin,
In particular, alkali-treated ossein gelatin is preferred.

The transmittance of gelatin was 7% when a 10% solution was prepared and the transmittance was measured at 420 nm using a spectrophotometer.
It is preferably 0% or more. The jelly strength of gelatin (by the puggy method) is preferably at least 250 g, particularly preferably at least 270 g. The ratio of gelatin to the total coated gelatin is not particularly limited, but is preferably used in a large ratio, and specifically, a preferable effect can be obtained by using at least a ratio of 20 to 100%.

The total amount of gelatin contained on the image forming side of the light-sensitive material of the present invention is preferably less than 11 g / m ² . The lower limit is not particularly limited, but is generally preferably 3.0 g / m ² or more from the viewpoint of physical properties or photographic performance. The amount of gelatin is determined by the method of measuring water described in the Paggy Method and converting it to the weight of gelatin containing 11.0% of water.

As a hardener of a binder represented by gelatin, it is preferable to use a vinylsulfone hardener or a chlorotriazine hardener alone or in combination.
It is preferable to use the compounds described in JP-A-61-249054 and JP-A-61-245153. It is preferable to add a preservative and an antifungal agent as described in JP-A-3-157646 to the colloid layer in order to prevent the growth of fungi and bacteria which adversely affect photographic performance and image storability.

In the present invention, the layer constitution is not particularly limited, but it is preferable that the emulsion layer having the longest spectral sensitivity wavelength is on the support side as compared with the other photosensitive emulsion layers.
In particular, when the emulsion having the longest spectral sensitivity wavelength is an emulsion having a spectral sensitivity in the infrared, the emulsion layer containing the infrared emulsion is preferably located closest to the support than the other emulsion layers.

In the present invention, at least one hydrophilic colloid layer colored with a diffusion-resistant compound is provided on the side closer to the support than the silver halide emulsion layer closest to the support among the silver halide emulsion layers. Is preferred. The diffusion-resistant compound includes the solid disperse dye and colloidal silver described above. Further, it is preferable that an oil-soluble dye is dissolved in a high boiling point solvent and used as fine dispersed particles in the constituent layer of the silver halide photographic light-sensitive material.

The photosensitive material of the present invention preferably has a surface roughness of 0.30 to 3.0 μm on the image forming surface. For this purpose, the photosensitive material has a matte layer in the constituent layer on the image forming surface side. An agent can be contained. The layers to which the matting agent is added include a silver halide emulsion layer, a protective film, an intermediate layer,
There is an undercoat layer and the like, which may be added to a plurality of layers, and is preferably the uppermost layer of the photosensitive material.

The surface gloss of the image forming layer side of the photosensitive material preferably has a gloss close to that of a printed material. For example, the glossiness GS of the surface of the image forming layer after processing is measured by a method specified in JIS Z8741. (60 °) of 5 to 60 is preferred. The light-sensitive material of the present invention preferably has a surface roughness of 0.30 to 3.0 μm on the image forming surface. For this purpose, a matting agent is contained in the constituent layer on the image forming surface side of the light-sensitive material. Can be done. The layers to which the matting agent is added include a silver halide emulsion layer, a protective film,
There are an intermediate layer, an undercoat layer, and the like, and may be added to a plurality of layers.
Preferably, it is the uppermost layer of the photosensitive material.

The surface gloss of the image forming layer side of the photosensitive material preferably has a gloss close to that of a printed material. For example, the glossiness GS of the surface of the image forming layer after treatment is measured by a method specified in JIS Z8741. (60 °) of 5 to 60 is preferred. When developing the light-sensitive material of the present invention with a color developing solution, a developing solution, a bleach-fix solution, and a stabilizing solution are
Replenishment developer, replenishment bleach, replenishment fixer,
Development processing can be continuously performed while replenishing a replenishing bleach-fixing solution, a replenishing stabilizing solution, and the like.

In the present invention, the replenishment amount of the developer is
Material 1m^TwoMore effective if less than 700ml per
The effects of the present invention can be exhibited. More preferably 500 ml
It is as follows. The other processing solutions are the same as the developing solutions.
Yes, replenishment amount is 1m of photosensitive material ^Two700ml or less per
More preferably, the effect of the present invention is less than 500 ml.
Can be exhibited more effectively.

Examples of the developer which can be used in the developer used for developing the light-sensitive material of the present invention include ordinary silver halide developers, for example, polyhydroxybenzenes such as hydroquinone, aminophenols, 3-pyrazolidones, and ascorbin. Acids and derivatives thereof, reductones, phenylenediamines and the like, 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, 4-amino-3-methyl-N-ethyl-N- (γ-hydroxypropyl) aniline and the like.

These developers may be previously contained in the emulsion and act on silver halide during immersion in a high pH aqueous solution. The developer may further contain specific antifoggants and development inhibitors, or these additives may be arbitrarily incorporated into the constituent layers of the photosensitive material.

In the photographic material, known photographic additives can be further used. Examples of the known photographic additives include the compounds described in RD17643, page 23, section III to page 29, section XXI and RD18716, page 648 to 651. In order to form an image using the photosensitive material of the present invention, it is preferable to use an automatic developing machine of a light source section scanning exposure system. Specific examples of particularly preferable apparatuses and systems for image formation include Konsensus manufactured by Konica Corporation.
L, Konsensus 570, Konsensus II
And the like.

The present invention is preferably applied to a light-sensitive material in which a developing agent is not incorporated in the light-sensitive material, and particularly preferably to a light-sensitive material having a reflective support for forming an image for direct viewing. For example, a light-sensitive material for color proof can be used.

[0191]

EXAMPLES The present invention will be described below in detail with reference to examples, but embodiments of the present invention are not limited thereto. Example 1 An image forming method of the present invention will be specifically described with reference to FIGS.

FIG. 1 is a conceptual diagram showing an example of an exposure apparatus according to the image forming method of the present invention. A laser light emitted from a light source unit 1 composed of a laser light source and / or a light emitting diode light source, a light source unit 2 composed of a laser light source and / or a light emitting diode light source, and a laser light emitted from a light source unit 3 composed of a laser light source and / or a light emitting diode light source is an optical system. The silver halide photographic light-sensitive material 6 set on the rotating drum 5 is image-exposed through the optical unit 4 described above.

FIG. 2 is a conceptual diagram of a laser light source unit showing an example of a light source unit according to the image forming method of the present invention. Laser oscillator light source or light emitting diode light source 2
1, laser oscillator light source or light emitting diode light source 22,
The laser light emitted from the laser oscillator light source or the light emitting diode light source 23 is image-exposed to a silver halide photographic material set on a rotating drum 27 as a plurality of beam spots via optical units 25 and 26.

FIG. 3 is a conceptual diagram showing an example of an image forming apparatus according to the image forming method of the present invention. A silver halide photographic light-sensitive material 31 wound in a roll and stored in a bright room cartridge is wound on a rotating drum 32 and then developed to form a final image.

In the apparatus having the above-described structure, the method disclosed in
When an image composed of dot information was formed using the sample 1-1 described in Example 1 of No. 954, a clear image without unevenness could be obtained stably. Example 2 << Preparation of Silver Halide Emulsion >> (Preparation of Emulsion EM-P1) An aqueous solution containing ammonia and silver nitrate, potassium bromide and sodium chloride (molar ratio) while controlling the aqueous solution containing oin gelatin at 40 ° C. And an aqueous solution containing KBr: NaCl = 95: 5) at the same time by a control double jet method, to give a particle size of 0.3.
A 0 μm cubic silver chlorobromide core emulsion was obtained. At that time, the pH and pAg were controlled so that a cube was obtained as the particle shape.

To the obtained core emulsion, an aqueous solution containing ammonia and silver nitrate and an aqueous solution containing potassium bromide and sodium chloride (KBr: NaCl = 40: 60 in a molar ratio) were simultaneously added by a control double jet method. The shell was formed until the average particle size became 0.42 μm. At this time, p is set so that a cube is obtained as the particle shape.
H and pAg were controlled.

After washing with water to remove water-soluble salts, gelatin was added to obtain an emulsion EM-P1. The distribution width of this emulsion EM-P1 was 8%. (Preparation of Emulsion EM-P2) An aqueous solution containing ammonia and silver nitrate, potassium bromide and sodium chloride (KBr: NaCl = 95: 5 in molar ratio) while controlling the aqueous solution containing oin gelatin at 40 ° C. An aqueous solution was added simultaneously with the control double jet method to obtain a particle size of 0.1
An 8 μm cubic silver chlorobromide core emulsion was obtained. At that time, the pH and pAg were controlled so that a cube was obtained as the particle shape.

To the obtained core emulsion, an aqueous solution containing ammonia and silver nitrate and an aqueous solution containing potassium bromide and sodium chloride (KBr: NaCl = 40: 60 in a molar ratio) were simultaneously added by a control double jet method. The shell was formed until the average particle size became 0.36 μm. At this time, p is set so that a cube is obtained as the particle shape.
H and pAg were controlled.

After washing with water to remove water-soluble salts, gelatin was added to obtain an emulsion EM-P2. The particle size distribution of this emulsion EM-P2 was 8%. (Preparation of Emulsion EM-P3) An aqueous solution containing ammonia and silver nitrate, potassium bromide and sodium chloride (KBr: NaCl = 95: 5 in molar ratio) while controlling the aqueous solution containing oin gelatin at 40 ° C. An aqueous solution was added simultaneously with the control double jet method to obtain a particle size of 0.1
An 8 μm cubic silver chlorobromide core emulsion was obtained. At that time, the pH and pAg were controlled so that a cube was obtained as the particle shape.

To the obtained core emulsion, an aqueous solution containing ammonia and silver nitrate and an aqueous solution containing potassium bromide and sodium chloride (KBr: NaCl = 40: 60 in molar ratio) were simultaneously added by a control double jet method. The shell was formed until the average particle size became 0.25 μm. At this time, p is set so that a cube is obtained as the particle shape.
H and pAg were controlled.

After washing with water to remove water-soluble salts, gelatin was added to obtain emulsion EM-P3. The particle size distribution of this emulsion EM-P3 was 8%. (Preparation of Green-Sensitive Silver Halide Emulsion) The following compounds were used for the emulsion EM-P1 to perform optimal chemical sensitization at 55 ° C.
Then, T-1 (4-hydroxy-6-methyl-1,3,3)
3a, 7-tetrazaindene) in an amount of 600
The resulting mixture was added to give a green photosensitive emulsion Em-1G.

Sodium thiosulfate 1.5 mg Chloroauric acid 1.0 mg Stabilizer STAB-1 4.5 × 10 ⁻⁴ mol Stabilizer STAB-2 1.5 × 10 ⁻⁴ mol Stabilizer STAB-3 2 × 10 ^{− 4} mol sensitizing dye GS-1 4 × 10 ^-4 mol Further, in the green photosensitive emulsion Em-1G prepared above,
A green photosensitive emulsion Em-2G was prepared in the same manner except that the emulsion was changed to EM-P2. (Preparation of Red-Sensitive Silver Halide Emulsion) The following compounds were used in Emulsion EM-P2 for optimal chemical sensitization at 55 ° C.
Then, T-1 was added in an amount of 600 mg per mol of silver to prepare a red-sensitive emulsion Em-2R.

Sodium thiosulfate 1.8 mg Chloroauric acid 2.0 mg Stabilizer STAB-1 3 × 10 ⁻⁴ mol Stabilizer STAB-2 2.5 × 10 ⁻⁴ mol Stabilizer STAB-3 1.5 × 10 ^{− 4} mol sensitizing dye RS-1 1 × 10 ^-4 mol sensitizing dye RS-2 1 × 10 ^-4 mol Further, in the red photosensitive emulsion Em-2R prepared above,
A red-sensitive emulsion Em-3R was prepared in the same manner except that the emulsion was changed to EM-P3. (Preparation of infrared-sensitive silver halide emulsion) Emulsion EM-P3
An infrared-sensitive emulsion Em-3IFR was prepared in the same manner as in the green-sensitive emulsion Em-1G, except that the following compounds were used and the chemical sensitization was optimally performed at 55 ° C.

Sodium thiosulfate 1.8 mg Chloroauric acid 2.0 mg Stabilizer STAB-1 3 × 10 ⁻⁴ mol Stabilizer STAB-2 2.5 × 10 ⁻⁴ mol Stabilizer STAB-3 1.5 × 10 ^{− 4} mol sensitizing dye IRS-1 1 × 10 ^-4 mol sensitizing dye IRS-2 1 × 10 ^-4 mol STAB-1: 1- (3-acetamidophenol) -5-mercaptotetrazole STAB-2: 1-phenyl-5-mercaptotetrazole STAB-3: 1- (4-ethoxyphenyl) -5-mercaptotetrazole

[0205]

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[0206]

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<< Multilayer Silver Halide Color Photosensitive Material Sample
Production >> High-density polyethylene on one side and A
Contains 15% Natase-type titanium oxide dispersed
115 g / weight laminated with molten polyethylene
m ^TwoOn a 100 μm thick paper pulp reflective support,
Using Em-2G, Em-3R and Em-3IFR,
Polyethylene containing titanium oxide for each constituent layer shown
The layer was sequentially coated on the layer side, and gelatin 6.0
0 g / m^Two, Silica matting agent beck smoothness is 160 seconds
Apply the following back layer with the amount adjusted so that
Sample 11 which is a silver halide color photosensitive material was prepared.
Was.

The coating amount of each component (unit: g / g)
m ² ). However, silver halide emulsions are shown in terms of metallic silver. H-1 and H-2 were added as hardeners. Surfactant SU as coating aid and dispersing aid
-1, SU-2 and SU-3 were added and prepared. SU-1: Sulfosuccinate di (2-ethylhexyl) ester sodium SU-2: Sulfosuccinate di (2,2,3,3,4,4)
Sodium 5,5-octafluoropentyl) ester SU-3: Sodium tri-i-propylnaphthalenesulfonate H-1: Sodium 2,4-dichloro-6-hydroxy-S-triazine H-2: Tetrakis (vinylsulfonyl) Methyl) methane 8th layer (ultraviolet absorbing layer) Gelatin 1.60 Ultraviolet absorbing agent (UV-1) 0.070 Ultraviolet absorbing agent (UV-2) 0.025 Ultraviolet absorbing agent (UV-3) 0.120 Silica mat Agent 0.01 seventh layer (red-sensitive layer) gelatin 1.25 red-sensitive silver chlorobromide emulsion (Em-3R) 0.37 magenta coupler (M-1) 0.25 yellow coupler (Y-1) 0.02 Stain inhibitor (HQ-1) 0.035 Inhibitor (T-1, T-2, T-3) (molar ratio 1: 1: 1) 0.0036 High boiling organic solvent (SO-1) 0.38 Sixth layer (intermediate layer) Gelatin 0.80 Anti-stain (HQ-2) 0.03 Anti-stain (HQ-3) 0.01 Anti-irradiation dye (AI-1) 0.04 Fifth layer (green-sensitive layer) Gelatin 0.90 Green-sensitive silver chlorobromide emulsion (Em-2G) 0.35 Cyan coupler (C-1) 0.35 Stain inhibitor (HQ-1) 0 .02 inhibitor (T-1, T-2, T-3) (molar ratio 1: 1: 1) 0.002 high boiling point organic solvent (SO-1) 0.18 fourth layer (intermediate layer) gelatin 0 .80 Anti-stain agent (HQ-2) 0.03 Anti-stain agent (HQ-3) 0.01 Anti-irradiation dye (AI-2) 0.05 Third layer (infrared-sensitive layer) Gelatin 1.10 Infrared photosensitive emulsion (EM-3IFR) 0.33 Yellow coupler Y-1) 0.19 Yellow coupler (Y-2) 0.19 Inhibitor (T-1, T-2, T-3) (molar ratio 1: 1: 1) 0.004 Stain inhibitor (HQ- 1) 0.004 High-boiling organic solvent (SO-1) 0.30 Second layer (intermediate layer) Gelatin 1.20 First layer (colloidal silver-containing layer) Gelatin 2.20 Liquid paraffin 0.55 Anti-irradiation dye (AI-4) 0.05 Black colloidal silver 0.05 Titanium oxide 0.50 Back layer (hydrophilic colloid layer) Gelatin 6.00 SiO ₂ (average particle size 3 μm) 0.10 Support Polyethylene laminated paper (trace amount) The structure of each compound is shown below.

SO-1: tri (n-octyl) phosphine oxide HQ-1: 2,5-di (t-butyl) hydroquinone HQ-2: 2,5-di [(1,1-dimethyl-4- Hexyloxycarbonyl) butyl] hydroquinone HQ-3: weight ratio of 2,5-di-sec-dodecylhydroquinone, 2,5-di-sec-tetradecylhydroquinone and 2-sec-dodecyl-5-sec-tetradecylhydroquinone 1: 2 mixture T-2: 1- (3-acetamidophenyl) -5-mercaptotetrazole T-3: N-benzyladenine

[0210]

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[0211]

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[0212]

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[0213]

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Samples 12 and 13 were prepared in the same manner except that the emulsions of the fifth and seventh layers of Sample 11 were changed as shown in Table 1. In addition, samples 11 to 13
By adjusting the added amount of SiO ₂ in each of the back layer, the samples were prepared 14-19 in the same manner except for changing the Bekk smoothness of 125 and 110 seconds.

[0215]

[Table 1]

The spectral sensitivity peaks of the photosensitive layers of Samples 11 to 19 prepared as described above were 548 nm for the green photosensitive layer,
The red photosensitive layer was 670 nm, and the infrared photosensitive layer was 785 nm. << Evaluation of Suitability for Laser Exposure >> Each sample obtained above was cut into a width of 580 mm and a length of 55 m, wound around a core so that the emulsion surface was exposed, processed into a roll, and housed in a bright room type cartridge. did.

Next, after the roll-shaped photosensitive material obtained above was set in the photosensitive material storage section of the image forming apparatus of the present invention shown in FIG. 3, the sample was pulled out from the cartridge and cut into a predetermined length. Wrap around a drum, aspirate and fix under reduced pressure, and perform image formation with an image forming apparatus having an image exposure unit including three laser exposure units having different wavelengths and an automatic development unit including the following processing steps, and output image samples I got

The image exposure includes exposure with an infrared laser corresponding to a yellow dot test chart image, green laser exposure corresponding to a magenta dot test chart image,
Red laser exposure corresponding to the cyan halftone test chart image and green, red, and infrared exposure corresponding to the black halftone test chart image were performed. The laser exposure light source is
The green laser is a helium / neon laser (544n
m), the red laser is a semiconductor laser (AlGaInA)
s: about 670 nm) and a semiconductor laser (GaAlAs: about 780 nm) as an infrared laser. The photosensitive material is attracted to and adhered to the rotating drum, and the number of rotations is 2,000 rotations /.
The main scanning and sub-scanning were performed in minutes, and an image was recorded. The exposure output of the green laser light source unit was 1 μW, the exposure output of the red laser light source unit was 16 μW, and the exposure output of the infrared laser light source unit was 80 μW.

However, in this case, the infrared semiconductor laser is
The light-sensitive material was exposed simultaneously as laser beams of 12 beams to the photosensitive material via optical means. In addition, each of the single green, red and infrared laser beam diameters of each light source unit is 14 μm and 20 μm, respectively.
m and 22 nm. (Processing step) Processing step Temperature Time Immersion (developer) 37 ° C for 12 seconds Fog exposure -12 seconds Development 37 ° C for 95 seconds Bleaching and fixing 35 ° C for 45 seconds Stabilizing treatment 25 to 30 ° C for 90 seconds Drying 60 to 85 ° C for 40 seconds ( Composition of color developing solution) Benzyl alcohol 15.0 ml Ceric sulfate 0.015 g Ethylene glycol 8.0 ml Potassium sulfite 2.5 g Potassium bromide 0.6 g Sodium chloride 0.2 g Potassium carbonate 25.0 g T-1 0.1 g Hydroxyl Amine sulfate 5.0 g Sodium diethylenetriaminepentaacetate 2.0 g 4-Amino-N-ethyl-N- (β-hydroxyethyl) aniline sulfate 4.5 g Fluorescent whitening agent (4,4′-diaminostilbene disulfonic acid derivative ) 1.0g Potassium hydroxide 2.0g Diethylene glycol 15.0m The total volume of 1000ml by the addition of water, adjusted to PH10.15. (Composition of bleach-fixing solution) 90.0 g of ferric ammonium diethylenetriaminepentaacetate 3.0 g of diethylenetriaminepentaacetic acid 3.0 g 180.0 ml of ammonium thiosulfate (70% aqueous solution) 27.5 ml of ammonium sulfite (40% aqueous solution) 3-mercapto-1,2,2 0.15 g of 4-triazole Adjust the pH to 7.1 with potassium carbonate or glacial acetic acid, and add water to make the total volume 1000 ml. (Composition of stabilizing solution) o-phenylphenol 0.3 g potassium sulfite (50% aqueous solution) 12.0 ml ethylene glycol 10.0 g 1-hydroxyethylidene-1,1-diphosphonic acid 2.5 g bismuth chloride 0.2 g zinc sulfate 7 Water salt 0.7 g Ammonium hydroxide (28% aqueous solution) 2.0 g Polyvinyl pyrrolidone (K-17) 0.2 g Fluorescent whitening agent (4,4'-diaminostilbene disulfonic acid derivative) 2.0 g Is adjusted to 1000 ml and the pH is adjusted to 7 with ammonium hydroxide or sulfuric acid. Adjust to 5.

Note that the stabilization treatment was of a countercurrent type having a two-tank configuration. The formula of the replenisher for performing the running process is shown below. (Color developing replenisher) Benzyl alcohol 18.5 ml Ceric sulfate 0.015 g Ethylene glycol 10.0 ml Potassium sulfite 2.5 g Potassium bromide 0.3 g Sodium chloride 0.2 g Potassium carbonate 25.0 g T-1 0.1 g Hydroxylamine sulfate 5.0 g Sodium diethylenetriaminepentaacetate 2.0 g 4-Amino-N-ethyl-N- (β-hydroxyethyl) aniline sulfate 5.4 g Fluorescent whitening agent (4,4′-diaminostilbene disulfonic acid) Derivative) 1.0 g Potassium hydroxide 2.0 g Diethylene glycol 18.0 ml Water is added to adjust the total volume to 1 liter, and the pH is adjusted to 10.35. (Bleach-fixer replenisher) Same as the bleach-fixer. (Stabilizer replenisher) Same as the stabilizer.

The replenishing amounts of the developing replenisher, the bleach-fixer and the stabilizer were 320 ml per m ^{2 of} the light-sensitive material. The processed sample obtained as described above was subjected to X-Rite40
Using an 8-color reflection densitometer (manufactured by Nippon Lithographic Equipment Co., Ltd.), each density is measured, and a characteristic curve based on density D-exposure amount LogE is created. The reciprocal was defined as the sensitivity, and each sensitivity was determined.
From the sensitivity values measured as described above, according to equation (1),
Each sensitivity ratio was calculated, and the results are shown in Table 2.

[0222]

[Table 2]

The exposure conditions were 5 as shown in Table 3 below.
The exposure was performed under two exposure conditions A to E.

[0224]

[Table 3]

The color tone of 50% of the black dots of the output image obtained by exposure under the exposure conditions shown in Table 3 was measured. At that time, the difference in color tone between the portion corresponding to the suction groove (referred to as condition A) and the portion not corresponding to the suction groove (referred to as condition B) was evaluated as a ratio of ΔE. The color tone of the sample output under each condition was measured using a Minolta Colorimeter CM
CIE, L *, a *, and b * were measured using -2022, and the color tone deviation between the condition a and the condition b was evaluated as ΔE represented by the following formula. Table 4 shows the obtained results.

ΔE = (ΔL * ⁻² + Δb * ⁻² + Δa * ⁻² ) ^−1/2 Here, ΔL *, Δa *, and Δb * represent the respective differences between the condition a and the condition b.

[0227]

[Table 4]

As is apparent from Table 4, in the output samples of the samples 14, 16, 17 and 19 according to the first aspect of the present invention under the exposure condition A, the variation of the black color tone was small even in the portion corresponding to the suction groove, and the output was stable. You can see that it is. Example 3 One side is laminated with polypropylene and the other side is laminated with a molten polyethylene containing anatase type titanium oxide dispersed at a content of 15%, weighing 115 g / m ² , and having a thickness of 100 g.
A μm paper pulp reflective support was prepared. Next, a mold was formed on the side of the polypropylene coating layer, and a support was prepared in which the friction coefficient of the back layer was changed to 0.18, 0.35 and 0.44, respectively. As shown in Table 5, Samples 21 to 29 in which constituent layers similar to Samples 11 to 13 of Example 2 were provided on those supports were produced.

[0229]

[Table 5]

The samples 21 to 29 obtained as described above were evaluated in the same manner as in Example 2, and the results are shown in Table 6.

[0231]

[Table 6]

As is clear from the results shown in Table 6, the output samples of Samples 21, 23, 24, and 26 according to the second embodiment of the present invention under the exposure condition A exhibited variations in black color tone even at portions corresponding to the suction grooves. It turns out that it is small and stable. Example 4 Samples 31 to 39 were prepared in the same manner as in Samples 11 to 13 of Example 2, except that the gelatin of the back layer was changed to 1.50 g / m ² and the silica matting agent was changed as shown in Table 7 below.

[0233]

[Table 7]

The samples 31 to 39 obtained as described above
Was evaluated in the same manner as in Example 2, and the results are shown in Table 8.

[0235]

[Table 8]

As is clear from the results shown in Table 8, the output samples of the samples 34 and 36 according to the third aspect of the present invention under the exposure condition A have a small variation in black color tone even in the portion corresponding to the suction groove, and are stable. You can see that Example 5 A reflection support was prepared by changing the papermaking conditions of the paper support.
Samples 41 to 49 in which the Taber stiffness of the photosensitive material was changed as shown in Table 9 below were produced by coating the same constituent layers as Samples 11 to 13 of Example 1 on the reflective support.

[0237]

[Table 9]

The sample obtained as described above was used in Example 2.
Were evaluated in the same manner as described above, and the results are shown in Table 10.

[0239]

[Table 10]

As is clear from the results shown in Table 10, the output samples of the samples 44 and 46 according to the fourth aspect of the present invention under the exposure condition A have a small variation in the black color tone even in the portion corresponding to the suction groove, and are stable. You can see that Example 6 Cyan coupler (C-1) of samples 11 to 13 of Example 2
Were changed to Exemplified Compound (1-18) in the same manner to prepare Samples 51 to 53.

The samples thus obtained were evaluated in the same manner as in Example 2, and the results are shown in Table 11.

[0242]

[Table 11]

As is clear from the results shown in Table 11, the output samples of the samples 51 and 53 according to the fifth aspect of the present invention under the exposure condition A have a small variation in the black color tone even in the portion corresponding to the suction groove, and are stable. You can see that Example 7 An image was prepared in the same manner as in Samples 11 to 13 of Example 2, but after the sample was wound around a drum, the reduced pressure of suction was reduced to 50% of the final reduced pressure, and then the degree of reduced pressure was temporarily reduced to 20%. Then, the pressure reduction of the suction was increased again to 100%, and only the point that the photosensitive material was fixed was changed, and the output samples 61 to 6 were changed.
3 was obtained.

The samples thus obtained were evaluated in the same manner as in Example 2, and the results are shown in Table 12.

[0245]

[Table 12]

As is clear from the results shown in Table 12, the output samples of the samples 61 and 63 according to claim 6 of the present invention under the exposure condition A have a small variation in the black color tone even in the portion corresponding to the suction groove, and are stable. You can see that Example 8 An image was prepared in the same manner as in Samples 11 to 13 of Example 2, except that the optical system was adjusted so that the beam diameters of the laser light sources were 18 μm for yellow, magenta, and cyan, respectively. And samples 71 to 73 were obtained.

The obtained sample was evaluated in the same manner as in Example 2, and the results are shown in Table 13.

[0248]

[Table 13]

As is clear from the results shown in Table 13, the output samples of the samples 71 and 73 according to the seventh aspect of the present invention under the exposure condition A have a small variation in black color tone even in the portion corresponding to the suction groove, and are stable. You can see that Example 9 A single green, red, and infrared laser beam diameter of each light source unit was 18 μm, 20 μm, and an image was produced in the same manner as Samples 11 to 13 of Example 2 except that the user wanted to change the laser beam diameter to 22 μm. Table 14 shows the results of evaluating the obtained samples 81 to 83 in the same manner as in Example 2.

[0250]

[Table 14]

As is clear from Table 14, the output samples of the samples 81 and 83 according to the eighth aspect of the present invention under the exposure condition A have a small variation in the black color tone even at the portion corresponding to the suction groove and are stable. You can see that. Example 10 A sample was prepared in exactly the same manner as in Example 2 except that the emulsion of the third layer of Sample 11 was changed to Emulsion EM-P1. When the image was created by changing the infrared laser to a blue laser, the fluctuation of the black color tone was small even in the part corresponding to the suction groove,
A stable image was obtained. Example 11 A sample was prepared in the same manner as in Examples 2 to 9 except that the laser exposure light source was changed to a light emitting diode exposure light source having the same wavelength, and the same evaluation was performed. And a stable image was obtained with small fluctuations.

[0252]

According to the present invention, in a method for obtaining a color image by scanning and exposing a silver halide photographic material, the productivity is high, there is no image unevenness, and the color tone of black and yellow,
It was possible to provide an image forming method in which each of the magenta and cyan tones is preferable.

In the color plate making and printing processes,
In the method of obtaining a color image by performing scanning exposure on a silver halide photographic light-sensitive material from halftone image information obtained by color separation and halftone image conversion, there is no image unevenness, and the color tone of black and yellow, magenta, cyan It was possible to provide a color image forming method for calibration in which each color tone is preferable.

[Brief description of the drawings]

FIG. 1 is a conceptual diagram of an exposure apparatus to which an embodiment of an image forming method according to the present invention is applied.

FIG. 2 is a conceptual diagram of a laser light source unit to which an embodiment of the light source unit of the image forming method according to the present invention is applied.

FIG. 3 is a conceptual diagram of an image forming apparatus to which an embodiment of the image forming method according to the present invention is applied.

[Explanation of symbols]

Reference Signs List 1 light source unit having laser light source and / or light emitting diode light source 2 light source unit having laser light source and / or light emitting diode light source 3 light source unit having laser light source and / or light emitting diode light source 4 optical unit 5 rotating drum 6 silver halide photograph Photosensitive material 21 Laser oscillator or light emitting diode light source 22 Laser oscillator or light emitting diode light source 23 Laser oscillator or light emitting diode light source 24 Laser light source unit 25, 26 Optical unit 27 Rotating drum 31 Silver halide photographic photosensitive material 32 Rotating drum

Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat II (reference) G03C 7/00 540 G03C 7/00 540 7/38 7/38 G03F 3/10 G03F 3/10 B

Claims (10)

[Claims] 1. A reflective support having a thickness of 80 μm or more and 140 μm or less has at least one silver coupler emulsion layer containing a yellow coupler, one silver halide emulsion layer containing a magenta coupler, and one silver halide emulsion layer containing a cyan coupler. A silver halide photosensitive material is wound around a drum that rotates at least 1,000 times per second, and a yellow image forming exposure light source, a magenta image forming exposure light source, and a cyan image forming exposure light source selected from a laser light source or a light emitting diode. In the color image forming method of exposing using the light source, the silver halide light-sensitive material has a Beck smoothness of 140 seconds or less of a surface layer located on the side opposite to the silver halide emulsion layer with the support interposed therebetween. The sensitivity between the respective silver halide emulsion layers upon exposure is represented by the formula (1), and Color image forming method maximum exposure amount when the light is characterized by being represented by formula (2). Equation (1) Sy (Y) / Sy (M) ≧ 25, Sy (Y) /
Sy (C) ≧ 25 Sm (M) / Sm (C) ≧ 25, Sm (M) / Sm
(Y) ≧ 25 Sc (C) / Sc (Y) ≧ 25, Sc (C) / Sc
(M) ≧ 25, where Sy (Y): the sensitivity of the yellow coupler-containing silver halide emulsion layer when exposed with a yellow image forming exposure light source, and Sy (M): when exposed with a yellow image forming exposure light source. Sy (C): sensitivity of the cyan coupler-containing silver halide emulsion layer when exposed with an exposure light source for yellow image formation, Sm (Y): exposure light source for magenta image formation Sm (M): sensitivity of the magenta coupler-containing silver halide emulsion layer when exposed with an exposure light source for forming a magenta image, Sm (C): magenta image The sensitivity of the cyan coupler-containing silver halide emulsion layer when exposed with the exposure light source for forming, Sc (Y): when exposed with the exposure light source for cyan image formation Sc (M): the sensitivity of the magenta coupler-containing silver halide emulsion layer when exposed with an exposure light source for cyan image formation, Sc (C): the exposure for cyan image formation This represents the sensitivity of a cyan coupler-containing silver halide emulsion layer when exposed to a light source. Note that the sensitivity is expressed as the reciprocal of the exposure amount at which the density of minimum density + 0.2 is obtained. Equation (2) Sy (Y) × 2.5 ≦ Ey ≦ Sy (Y) × 4.
0 Sm (M) × 2.5 ≦ Em ≦ Sm (M) × 4.0 Sc (C) × 2.5 ≦ Ec ≦ Sc (C) × 4.0 where Ey: exposure light source for yellow image formation Em: the maximum exposure of the exposure light source for magenta image formation, and Ec: the maximum exposure of the exposure light source for cyan image formation. 2. The method according to claim 1, wherein the silver halide photosensitive material is wound around a drum that rotates at least 1,000 times per second,
In the color image forming method of exposing using the above-mentioned exposure light source, the coefficient of friction between the surface layers of the silver halide light-sensitive material opposite to the silver halide emulsion layer with respect to the support is 0.1 to 0.1. 4, the sensitivity between the respective silver halide emulsion layers when exposed by the exposure light source is represented by the above formula (1), and the maximum exposure amount when exposed by the exposure light source is represented by the above formula (2). A color image forming method. 3. The method according to claim 1, wherein the silver halide photosensitive material is wound around a drum that rotates at least 1,000 times per second,
In the color image forming method of exposing using the exposure light source, the content of the matting agent in the hydrophilic colloid layer in which the silver halide light-sensitive material is located on the opposite side of the silver halide emulsion layer with respect to the support is 0.1%. 5 to 3.0 g / m ² , the sensitivity between each silver halide emulsion layer when exposed with the exposure light source is represented by the above formula (1), and the maximum exposure amount when exposed with the exposure light source is A color image forming method represented by the formula (2). 4. The method according to claim 1, wherein the silver halide light-sensitive material is wound around a drum that rotates at least 1,000 times per second,
In the color image forming method for exposing using the exposure light source, the Taber stiffness of the silver halide photosensitive material is 0.8.
To 4.0, the sensitivity between the respective silver halide emulsion layers when exposed by the exposure light source is represented by the above formula (1), and the maximum exposure amount when exposed by the exposure light source is the formula (2) A) a color image forming method, characterized in that: 5. The method according to claim 5, wherein the silver halide photosensitive material is wound around a drum that rotates at least 1,000 times per second.
In the color image forming method of exposing using the exposure light source, the silver halide photosensitive material contains a compound represented by the general formula (1) or the general formula (2). A color image forming method, wherein the sensitivity between the silver halide emulsion layers is represented by the above formula (1), and the maximum exposure amount when exposing with the exposure light source is represented by the above formula (2). Embedded image In the formula, R ₁ represents a hydrogen atom or a substituent, R ₂ represents a substituent, and m represents an integer of 0 to 2. However, when m is 0, R ₁ represents an electron-withdrawing group, and when m is 1 or 2, R ₁
And at least one of R ₂ represents an electron-withdrawing group. When m is 2, a plurality of R ₂ may be the same or different. Z ₁ represents a nonmetallic atom group necessary for forming a nitrogen-containing 5-membered heterocyclic ring optionally benzene ring and condensed, X ₁ is splitting off upon reaction with the oxidation product of the hydrogen atom or a color developing agent Represents a substituent to be obtained. Embedded image In the formula, R ₁₁ and Y ₂ represent a hydrogen atom or a substituent, and X ₂ represents a hydrogen atom or a substituent which can be eliminated by reaction with an oxidized form of a color developing agent. Z ₂ represents a group of non-metallic atoms necessary for forming a nitrogen-containing 6-membered heterocyclic ring by condensing with the pyrazole ring together with —N (Y ₂ ) —, and the 6-membered ring may have a substituent. It may be condensed with a benzene ring other than the pyrazole ring. 6. The method according to claim 6, wherein the silver halide photosensitive material is wound around a drum that rotates at least 1,000 times per second,
In the color image forming method for exposing using the exposure light source, the sensitivity between the respective silver halide emulsion layers when exposed by the exposure light source is represented by the above formula (1), and the maximum when exposed by the exposure light source is The exposure amount is represented by the above formula (2), and the step of mounting a silver halide photosensitive material on the drum comprises:
A color image forming method, wherein the pressure is reduced by evacuating / suctioning through a suction groove or a suction hole provided in a drum, reducing the degree of pressure reduction after temporarily holding the silver halide photosensitive material, and thereafter increasing the degree of pressure reduction again. . 7. A method in which the silver halide light-sensitive material is wound around a drum that rotates at least 1,000 times per second,
In the color image forming method for exposing using the exposure light source, the sensitivity between the respective silver halide emulsion layers when exposed by the exposure light source is represented by the above formula (1), and the maximum when exposed by the exposure light source is A color image forming method, wherein the exposure amount is represented by the above formula (2), and the beam diameter of the exposure light source is 5 to 20 μm. 8. The method according to claim 8, wherein the silver halide photosensitive material is wound around a drum that rotates at least 1,000 times per second,
In the color image forming method for exposing using the exposure light source, the sensitivity between the respective silver halide emulsion layers when exposed by the exposure light source is represented by the above formula (1), and the maximum when exposed by the exposure light source is A color image wherein the exposure amount is represented by the above formula (2), and the ratio of the minimum beam diameter to the maximum beam diameter among the beam diameters of the exposure light source is 0.7 to 1.0. Forming method. 9. Winding the silver halide light-sensitive material around a drum that rotates at least 1,000 times per second,
In the color image forming method for exposing using the exposure light source, the sensitivity between the respective silver halide emulsion layers when exposed by the exposure light source is represented by the above formula (1), and the maximum when exposed by the exposure light source is The exposure amount is represented by the above formula (2), and at least one of the exposure light sources has a wavelength of 370 to 50.
A color image forming method, which is a laser light source or a light emitting diode having a wavelength of 0 nm. 10. The color image according to claim 1, wherein at least one of said exposure light sources is an exposure light source comprising a plurality of laser light sources having the same wavelength and / or a light emitting diode. Forming method.