JP2001092089A - Color image forming method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a color image forming method by which no image unevenness and a stable color tone of black dots are ensured. SOLUTION: A photosensitive material used has a silver halide emulsion layer containing a yellow coupler (Y layer), a silver halide emulsion layer containing a magenta coupler (M layer) and a silver halide emulsion layer containing a cyan coupler (C layer). When the photosensitive material is exposed with respective light sources, sensitivities between the emulsion layers are represented by 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 and Sc(C)/Sc(M)>=25. The maximum light exposures in exposure with respective light sources are represented by Sy(Y)×2.5<=Ey<=Sy(Y)×4.0, Sm(M)×2.5<=Em<=Sm(M)×4.0 and Sc(C)×2.5<=Ec<=Sc(C)×4.0. The M layer contains a magenta coupler of formula M-I or M-II and is situated farther from the substrate than the Y and C layers.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a color image forming method (hereinafter, also simply referred to as an image forming method), and more particularly, to an exposure apparatus having a laser or a light emitting diode capable of forming a color image and a silver halide photographic material. (Less than,
A color image forming method using a photosensitive material).
In particular, the present invention relates to a color image forming method used for proofreading by exposing a silver halide photographic material in accordance with a digital signal from halftone image information obtained by color separation and halftone image conversion in a color plate making and printing process.

[0002]

2. Description of the Related Art Conventionally, as a method of 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-
No. 2,807,492 and No. 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 way as a color proof, a method of performing scanning exposure on a color paper with a laser or a light emitting diode is known, but has various problems in practical use.

For example, in order to output a proof for printing, short-time exposure is performed with a light source of high illuminance such as a laser or a light emitting diode. It is known that when exposed with such a light source, the response characteristics of silver halide change, causing a so-called reciprocity failure that affects sensitivity and gradation.

Further, since the output of the light source and the wavelength tend to fluctuate depending on the environment such as the temperature at which the light source is used, there is a problem that the photographic characteristics fluctuate greatly, especially when exposing with a laser or a light emitting diode. I understand.

Further, in order to produce an actual color print, inks of respective colors of yellow, magenta, cyan and black are generally used, but image formation is performed using color paper which is a silver halide photographic light-sensitive material. In this case, a black image is formed 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, fluctuations in photographic performance due to exposure by a laser or a light-emitting diode, fluctuations in development processing conditions, a silver halide photographic material, It was found that the color tone of the halftone dot of black greatly deviated from the preferable color tone due to the influence of temporal change due to the storage of.

[0009]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a silver halide photographic material by laser exposure or scanning exposure with a light emitting diode to obtain a color image without causing image unevenness and black ink. An object of the present invention is to provide an image forming method in which halftone color tone is stable.

Further, in the color plate making / printing process, scanning exposure is performed on a silver halide photographic material from halftone image information obtained by color separation and halftone image conversion to obtain a color image. Moreover, it is an object of the present invention to provide a color image forming method for calibration in which the color tone of black dots is stable.

[0011]

The above object of the present invention is attained by the following constitutions.

1. A yellow coupler-containing silver halide emulsion layer (hereinafter also referred to as Y layer), a magenta coupler-containing silver halide emulsion layer (hereinafter also referred to as M layer), and a cyan coupler-containing silver halide emulsion layer (hereinafter referred to as C layer) are formed on a support.
A silver halide photosensitive material having a yellow image forming light source selected from a laser light source or a light emitting diode, a magenta image forming light source, and a cyan image forming light source.
The sensitivity between the emulsion layers when exposed by the respective light sources is represented by the following 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 Y layer when exposed with a yellow image forming light source, Sy (M): the sensitivity of the M layer when exposed with a yellow image forming light source, Sy (C): Sensitivity of layer C when exposed with light source for yellow image formation, Sm (Y): Sensitivity of layer Y when exposed with light source for magenta image formation, Sm (M): Light source for magenta image formation Sensitivity of the M layer when exposed, Sm (C): sensitivity of the C layer when exposed with a magenta image forming light source, Sc (Y): Y when exposed with a cyan image forming light source
Sensitivity of layer, Sc (M): M when exposed with light source for cyan image formation
Sensitivity of layer, Sc (C): C when exposed with light source for cyan image formation
Layer sensitivity.

The sensitivity is obtained as the reciprocal of the exposure amount at which the density of minimum density + 0.2 is obtained. ) And the maximum exposure amount when exposing with the respective light sources is represented by the following 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: maximum exposure of the light source for yellow image formation) Amount Em: Maximum exposure amount of light source for magenta image formation Ec: Maximum exposure amount of light source for cyan image formation) and the M layer is a magenta coupler represented by the following general formula [MI] or [M-II] A color image forming method, wherein the layer is located farther from the support than the Y layer and the C layer.

[0014]

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In the formula, R ¹ and R ² each represent a hydrogen atom or a substituent, and may be the same or different, or may be bonded to each other to form a ring, and X is a hydrogen atom or a color developing compound. It represents a group that can be eliminated when coupling with the oxidized form of the main drug.

2. A silver halide photosensitive material having a silver halide emulsion layer containing a yellow coupler, a silver halide emulsion layer containing a magenta coupler, and a silver halide emulsion layer containing a cyan coupler on a support is used for forming a yellow image selected from a laser light source or a light emitting diode. In a color image forming method for exposing using a light source, a magenta image forming light source, and a cyan image forming light source, the sensitivity between each emulsion layer when exposed with the respective light sources is represented by the above formula (1), and The maximum exposure amount when exposing with each of the light sources is represented by the above formula (2), and M of the Y layer, the M layer, and the C layer.
The average grain size of the silver halide emulsion grains contained in the layer is Y
A color image forming method, wherein the average particle diameter of each silver halide emulsion particle contained in the layer, the M layer and the C layer is the smallest.

3. A silver halide photosensitive material having a silver halide emulsion layer containing a yellow coupler, a silver halide emulsion layer containing a magenta coupler, and a silver halide emulsion layer containing a cyan coupler on a support is used for forming a yellow image selected from a laser light source or a light emitting diode. In a color image forming method for exposing using a light source, a magenta image forming light source, and a cyan image forming light source, the sensitivity between each emulsion layer when exposed with the respective light sources is represented by the above formula (1), and The maximum exposure amount when exposing with each of the light sources is represented by the above formula (2), and shows a minimum density +0.5 on the characteristic curve of at least one of the Y layer, the M layer, and the C layer. And the absolute value of the slope of the straight line connecting the point indicating the lowest density +1.0 to the absolute value of the straight line connecting the point indicating the lowest density +1.0 and the point indicating the lowest density +1.3. Color image forming method ratio of the absolute value of the feeder is characterized in that it is a 0.60 to 0.80.

4. A silver halide photosensitive material having a silver halide emulsion layer containing a yellow coupler, a silver halide emulsion layer containing a magenta coupler, and a silver halide emulsion layer containing a cyan coupler on a support is used for forming a yellow image selected from a laser light source or a light emitting diode. In a color image forming method for exposing using a light source, a magenta image forming light source, and a cyan image forming light source, the sensitivity between each emulsion layer when exposed with the respective light sources is represented by the above formula (1), and The maximum exposure amount when exposing with each of the light sources is represented by the formula (2), and any one of the Y layer, the M layer and the C layer of the silver halide photographic material is represented by the following general formula [I A color image forming method comprising a high boiling point solvent represented by the formula:

[0019]

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In the formula, R ₅ , R ₆ and R ₇ each represent an alkyl group, an alkenyl group, a cycloalkyl group or an aryl group.

5. A silver halide photosensitive material having a silver halide emulsion layer containing a yellow coupler, a silver halide emulsion layer containing a magenta coupler, and a silver halide emulsion layer containing a cyan coupler on a support is used for forming a yellow image selected from a laser light source or a light emitting diode. In a color image forming method for exposing using a light source, a magenta image forming light source, and a cyan image forming light source, the sensitivity between each emulsion layer when exposed with the respective light sources is represented by the above formula (1), and The maximum exposure amount when exposing with each of the light sources is represented by the above formula (2), and the beam diameter of each of the light sources on the surface of the silver halide photographic material is 20 μm or less. Color image forming method.

6. A silver halide photosensitive material having a silver halide emulsion layer containing a yellow coupler, a silver halide emulsion layer containing a magenta coupler, and a silver halide emulsion layer containing a cyan coupler on a support is used for forming a yellow image selected from a laser light source or a light emitting diode. In a color image forming method for exposing using a light source, a magenta image forming light source, and a cyan image forming light source, the sensitivity between each emulsion layer when exposed with the respective light sources is represented by the above formula (1), and The maximum exposure amount when exposing with each of the light sources is represented by the above formula (2), and at least one of the light sources is a laser light source or a light emitting diode having a wavelength of 370 nm to 500 nm. Color image forming method.

Hereinafter, the present invention will be described in more detail.

In the present invention, it is preferable to perform image exposure with a light source unit having at least three lasers or light emitting diodes having different wavelengths. Among them, there may be one laser oscillator or light emitting diode corresponding to a laser light source of a certain wavelength, or a plurality of laser oscillators or light emitting diodes may simultaneously function as an image light source as a laser light source of a certain wavelength. In the present invention, the three types of lasers or light emitting diodes have different wavelengths, and the oscillation wavelength is usually at least 30 n.
m or more, preferably 50 nm or more.

The silver halide photographic material used in the present invention has a silver halide emulsion layer containing a yellow coupler, a silver halide emulsion layer containing a magenta coupler, and a silver halide emulsion layer containing a cyan coupler (C). , Respectively, Y (yellow) halftone image, M (magenta) halftone image,
A C (cyan) halftone image is formed. 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 the present invention, the light source units having the three lasers or light emitting diodes having different wavelengths are used as a light source for forming a yellow image, a light source for forming a magenta image, and a light source for forming a cyan image, respectively.

In the present invention, the sensitivity between each emulsion layer when exposed by the light source is represented by the following formula (1).

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 In the formula (1), Sy (Y): the sensitivity of the Y layer when exposed with a yellow image forming light source, and Sy (M): the sensitivity of the M layer when exposed with a yellow image forming light source. Sy (C): sensitivity of layer C when exposed with light source for yellow image formation, Sm (Y): sensitivity of layer Y when exposed with light source for magenta image formation, Sm (M): for magenta image formation Sensitivity of M layer when exposed by light source, Sm (C): Sensitivity of C layer when exposed by light source for magenta image formation, Sc (Y): Y when exposed by light source for cyan image formation
Sensitivity of layer, Sc (M): M when exposed with light source for cyan image formation
Sensitivity of layer, Sc (C): C when exposed with light source for cyan image formation
Layer sensitivity.

The sensitivity is obtained as the reciprocal of the exposure amount at which the density of minimum density + 0.2 is obtained.

In the relational expression (1), when the sensitivity ratio on the left side is less than 25, the image density greatly changes when the environmental change such as the temperature or the processing temperature changes, and the black density becomes large. It causes density unevenness and uneven color tone of halftone dots of black ink. There is no particular limitation on the one with a large sensitivity ratio, but it is practically 1000 or less.

In the present invention, the maximum exposure amount when exposing with the light source is represented 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 (where, Ey: maximum exposure of the light source for yellow image formation Em: maximum exposure of the light source for magenta image Ec: maximum exposure of the light source for cyan image formation In the relational expression of the above equation (2), the maximum exposure amount is expressed by the equation (2).
Is less than the lower limit of the relationship, the white background deteriorates. Conversely, when the upper limit is exceeded, 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.

An example will be described.

The silver halide photographic light-sensitive material of the present invention comprises Y
A silver halide photographic material having a blue-sensitive silver halide emulsion layer containing a coupler, a green-sensitive silver halide emulsion layer containing an M coupler, and a red-sensitive silver halide emulsion layer containing a C coupler. (Y) When a blue (B) laser is used as a blue light source for image formation, a green (G) laser is used as a green light source for magenta (M) image formation, and a red (R) laser is used as a red light source for cyan (C) image formation. Then, the relationship of equation (3) is as follows.

Equation (3) Sy (B) / Sy (G) ≧ 25, 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 (where, 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 layer Y when exposed with green (G) laser; Sm (G): sensitivity with green (G) laser Sensitivity of the M layer when exposed, Sm (R): sensitivity of the C layer when exposed with a green (G) laser, Sc (B): sensitivity of the Y layer when exposed with a red (R) laser, Sc (G): the sensitivity of the M layer when exposed with a red (R) laser, Sc (R): the sensitivity of the C layer when exposed with a red (R) laser. Become like

Equation (4) 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 (Ey: maximum exposure of blue (B) laser Em: maximum exposure of green (G) laser Ec: maximum exposure of red (R) laser Here, the maximum exposure amount means the maximum exposure amount 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 emulsion and a coupler other than the above.

According to the first aspect of the present invention, the M
It is preferable that the layer is on the side farther from the support than the Y layer and the C layer.

The photographic constituent layer of the present invention may have a constituent layer containing no photosensitive silver halide emulsion in addition to the M layer, the Y layer and the C layer. For example, an antihalation layer, an intermediate layer, a protective layer, and the like correspond to this. The M layer of the present invention is a Y layer,
The fact that the layer is farther from the support than the layer C means that the layer M is farther from the support than the layer Y and the layer C irrespective of the positions of the non-photosensitive layers. When there are a plurality of emulsion layers, at least one M layer has at least one emulsion layer.
What is necessary is just to be on the side farther than the Y layer of a layer and at least one C layer.

The above general formula [MI] or the above general formula [M
-II], R ¹ and R ² each represent a hydrogen atom or a substituent, and may be the same or different, or may be bonded to each other to form a ring, and X is a hydrogen atom or a color developing agent. Represents a group that can be eliminated upon coupling with an oxidized form of

The magenta coupler contained in the magenta image forming layer used in the light-sensitive material according to the present invention is a magenta coupler represented by the aforementioned general formula [MI] or [M-II], As the substituent represented by R ¹ and the substituent represented by R ² , those represented by the following general formula [S] are preferable.

[0042]

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The substituents represented by R ¹¹ , R ¹² and R ¹³ in the general formula [S] are not particularly limited, and may be alkyl, alkynyl, alkenyl, cycloalkyl, aryl, acyl, amino, anilino, acylamino. , Carbamoyl, ureido, sulfonyl, sulfinyl, sulfonamide, sulfamoyl, alkylthio, arylthio, cyano, hydroxy, alkoxy, aryloxy, acyloxy, carbamoyloxy, sulfamoyloxy, sulfamoyloxy, sulfonyloxy, etc., or a halogen atom, heterocycle And the like. These groups may be further substituted with a substitutable group.

In the general formula [S], R ¹¹ , R ¹² and R ¹³ preferably each include a hydrogen atom, an alkyl, a cycloalkyl, an aryl, an acyl, an acyloxy, a sulfonyl and the like.

In the general formulas [MI] and [M-II], examples of the group capable of leaving upon coupling with an oxidized form of the color developing agent represented by X include a halogen atom, alkoxy, Aryloxy, heterocyclic oxy, acyloxy, sulfonyloxy, alkoxycarbonyl, aryloxycarbonyl, alkyloxalyloxy, alkylthio, arylthio, heterocyclic thio, acylamino, sulfonamide, nitrogen-containing heterocyclic ring bonded with N atom, etc. Can be mentioned. Of these, a hydrogen atom, a halogen atom, an alkoxy group, an aryloxy group and an arylthio group are preferred, and a hydrogen atom, a halogen atom and the like are more preferred.

Specific examples of the magenta coupler of the present invention are shown below, but the magenta coupler used in the present invention is not limited to these.

[0047]

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[0048]

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[0049]

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[0050]

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[0051]

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[0052]

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[0053]

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[0054]

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[0055]

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[0056]

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[0057]

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The magenta coupler is described in Journal
of the Chemical Society, P
erkin I (1977), 2047-2052, U.S. Pat. No. 3,725,067, JP-A-58-42045.
, 59-99437, 59-162548 and the like.

According to the invention of claim 2 of the present invention, the silver halide emulsion grains contained in the M layer have an average grain size of the Y layer,
It is the smallest of the average grain sizes of the silver halide emulsion grains contained in the M and C layers.

According to the third aspect of the present invention, the Y layer,
On the characteristic curve of at least one of the M layer and the C layer, the absolute value of the gradient of the straight line connecting the point indicating the minimum density +0.5 and the point indicating the minimum density +1.0 is defined as the minimum density +1.0.
Is between 0.60 and 0.80, the absolute value of the slope of the straight line connecting the point indicating the minimum density and the point indicating the minimum density of +1.3.

In order to obtain the above characteristic curve, the ratio of the amount of coated silver to the amount of coupler is changed to increase the amount of coupler relatively, or to obtain two types of emulsions having different sensitivities and gradations. Can be realized by changing the mixing ratio. When it is less than 0.6, the fluctuation of the black color tone due to the processing fluctuation, the fluctuation of the temperature and the like becomes small, but the characteristic of the dot quality of the black dot tends to be insufficient.

According to the invention of claim 4 of the present invention, any one of the Y layer, the M layer and the C layer of the light-sensitive material of the present invention has a high boiling point solvent represented by the above general formula [I] (phosphoric acid) (Ester-based compounds).

In the general formula [I], R ₅ , R ₆ and R
₇ represents an alkyl group, an alkenyl group, a cycloalkyl group, or an aryl group, respectively. R ₅ , R ₆ and R ₇
The total number of carbon atoms of the group represented by is preferably from 24 to 48. If it is less than 24, the improvement effect aimed at by the present invention will be small, and if it exceeds 48, the function as a solvent will be reduced.

The alkyl groups represented by R ₅ , R ₆ and R ₇ include, for example, ethyl group, propyl group, t-butyl group, hexyl group, heptyl group, octyl group, iso-octyl group, t-octyl group , Nonyl group, sec-nonyl group, sec-decyl group, dodecyl group, iso-pentadecyl group, hexadecyl group, heptadecyl group, octadecyl group, 2-ethylhexyl group and the like, as an aryl group,
For example, alkenyl groups such as phenyl group and naphthyl group include, for example, butenyl group, pentenyl group, octadecenyl group and the like. These alkyl group, alkenyl group and aryl group may have a single or a plurality of substituents, examples of the substituent of the alkyl group and alkenyl group include a halogen atom, an alkoxy group, an aryl group, an aryloxy group, Alkenyl group, alkoxycarbonyl group and the like, as a substituent of the aryl group,
Examples include a halogen atom, an alkyl group, an alkoxy group, an aryl group, an aryloxy group, an alkenyl group, and an alkoxycarbonyl group. 2 of these substituents
More than one species may have an alkyl, alkenyl or aryl group introduced. Preferably, R ₅ , R ₆ and R ₇ are alkyl groups, 2-ethylhexyl group, n-octyl group, 3,5,5-trimethylhexyl group, n-nonyl group, n-decyl group, sec-decyl group , Sec-dodecyl group, t-octyl group and the like.

In the present invention, the phosphate compound represented by the general formula [I] is one kind of high boiling organic solvent, and the high boiling organic solvent has a boiling point of 150 ° C. or more at 1 atm. Is preferred.

In the present invention, the high boiling point organic solvent represented by the general formula [I] is preferably a dielectric constant of 6.0.
These are the above compounds. It can also be used in combination with other high boiling point organic solvents.

The specific examples of the high boiling point organic solvent represented by the general formula [I] are shown below, but the present invention is not limited thereto.

[0068]

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[0069]

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[0070]

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[0071]

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[0072]

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[0073]

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[0074]

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All of these phosphate ester compounds are known compounds, and are described in, for example, “Solvent Handbook”
627-631, Kodansha Scientific, Showa 51
It is described in annual publications.

It is preferable that the total amount of the high boiling organic solvent containing the phosphate ester is 2.0 or less based on the total amount of gelatin.

According to the fifth aspect of the present invention, the beam diameter of the light source on the light-sensitive material surface is 20 μm or less. Further, the beam diameter is preferably 5 μm to 16 μm or less. Further, it is more preferable that the beam diameter of all three light sources having different wavelengths in the present invention is 20 μm or less. The beam diameter is adjusted by designing the optical system.

According to the sixth aspect of the present invention, at least one of the light sources is a laser light source or a light emitting diode having a wavelength of 370 nm to 500 nm.

As such a light source, for example, SHG
Examples thereof include a laser light source using a device, a helium / cadmium laser light source, and a nitrogen gallium semiconductor laser, but the present invention is not limited to these.

In the present invention, it is preferable that the light-sensitive region of at least one silver halide emulsion layer of the silver halide photographic light-sensitive material is exposed at an exposure amount of two or more values. Exposure with two or more exposures means that the exposure is controlled by controlling the image exposure at two or more exposure levels in addition to the reference value that does not provide exposure. is there.

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 is defined as a dot area ratio (%) obtained by decomposing a reproduced black dot image into BGR and measuring it when the dot area ratio of the black dot image information of the document is 50%. ) Is subtracted from the value of 50). 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%. Note that the dot gain uses a value calculated using the color of Murray Davis.

In the present invention, at least one hydrophilic colloid layer colored by 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.

In the present invention, in performing the scanning exposure on the silver halide photographic light-sensitive material, the silver halide photographic light-sensitive material is set so as to be wound around a rotating drum, and is synchronized with the rotation of the rotating drum to respond to image information. Laser /
Light emitting diode exposure is performed.

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 / light-emitting diode light, 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 speed, but specifically, 200 to 3000 rotations per minute.
Rotation is preferred.

The photosensitive material may be fixed to the drum by mechanical means, or a large number of fine holes which can be sucked on the surface of the drum are provided in accordance with the size of the photosensitive material.
The photosensitive material can be sucked and brought into close contact. It is necessary to fix the photosensitive material as closely as possible to the drum in order to prevent troubles such as unevenness of the image.

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 (441.6 n
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.

As a light emitting diode (LED), one having the same composition as a semiconductor laser is known.
Various types from blue to infrared have been put to practical use.

In the image forming method of the present invention, the exposure apparatus is an exposure apparatus preferably used for large-size color printing and color proof exposure, and a roll-shaped silver halide photographic light-sensitive material is used in a light room. Load the cartridge stored so that it can be handled into the exposure device, pull it out, cut it to the length required for image formation, wind it around a rotating drum, and perform image exposure with a laser exposure device while rotating the drum. It is preferably used as a means for obtaining a color image by subsequently performing a development process. At this time, it is preferable that the exposure apparatus has a mechanism for reading information given to the light-room cartridge and automatically performing identification of the type of photosensitive material, setting of exposure conditions, and setting of development processing conditions.

Various types of bright room cartridges have been proposed, but all known bright room cartridges can be used. In addition, by covering the outer periphery of the roll 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, and after loading into an exposure apparatus, the leader is removed to remove the dark room. In the image forming method of the present invention, a bright room cartridge includes a so-called easy-loading photosensitive material which can be easily loaded with a roll of a silver halide photographic photosensitive material without requiring it.
In that case, the readable information can be given to the reader or to the flange or the like.

In the present invention, it is preferable to use a silver halide photosensitive material having at least three silver halide emulsion layers having mutually different spectral sensitivities. At that time, the silver halide emulsion contained in at least one of the emulsion layers is 2 to 10 nm from the laser / light emitting diode exposure wavelength.
It is preferable to have a spectral sensitivity maximum in a long wavelength region.

When the spectral sensitivity has a maximum in a wavelength region of less than 2 nm and more than 10 nm from the exposure wavelength, when the output wavelength fluctuates, the fluctuation of the sensitivity becomes large and the image becomes unstable. On the other hand, when the spectral sensitivity has a maximum in a wavelength region exceeding 10 nm from the exposure wavelength, there is a problem that the 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.

For at least one wavelength of at least three laser / light emitting diode light source units, 2 to 1
It is preferable that the spectral sensitivity has a maximum in a wavelength region longer by 0 nm.

In the case where a plurality of laser / 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 light-sensitive material having at least three silver halide emulsion layers having mutually different spectral sensitivities, and among the three silver halide emulsion layers, The ratio (rl / rs) of the average grain size (rl) of the silver halide emulsion having the longest spectral sensitivity to the average grain size (rs) of the silver halide emulsion having the shortest spectral sensitivity is 1.1 to 1.0. It is preferably 2.0.

If the ratio is less than 1.1, color separation by exposure becomes insufficient, and color turbidity occurs in an image. On the other hand, when the ratio exceeds 2.0, a difference in developability occurs, which sometimes causes a problem that the color balance is lost when development processing conditions such as temperature and pH change.

The reflective support of the light-sensitive material used in the present invention preferably has a weight per 1 m ² of 130 g or less, and more preferably has a weight per 1 m ² of 70 to 100 g.
120 g.

The color light-sensitive material of the present invention has at least a yellow image forming silver halide emulsion layer, a magenta image forming silver halide emulsion layer, and a cyan image forming silver halide emulsion layer, and is contained in each emulsion layer. Silver halides have different spectral sensitivity maximum wavelengths.

In the present invention, an image is formed by exposing with a laser having a wavelength corresponding to the spectral wavelength region of each emulsion layer, and at least one of the reflection densities of the raw sample measured at the wavelength of the laser exposure. Is preferably 0.8 or more, and more preferably 1.0 or more.

For measuring the reflection density of the raw sample, a conventionally known method can be used. 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 for adjusting the reflection density before development to 0.8 or more, a method of adding a water-soluble dye having absorption to at least the spectral sensitivity region of the silver halide emulsion and / or a method of adding the lowermost layer or other It is preferable to provide antihalation in the layer. 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.

As the oxonol dye, US Pat.
187, 225, JP-A-48-42826, and 49
No.-5125, No.49-99620, No.50-916
No. 27, No. 51-77327, No. 55-120660
No. 58-24139, No. 58-143342,
No. 59-38742, No. 59-111640, No. 5
Nos. 9-111641, 59-168438 and 60
-218641, 62-31916, 62-6
No. 6275, No. 62-66276, No. 62-1857
No. 55, No. 62-273527, No. 63-13994
No. 9, etc. Also, as merocyanine dyes, JP-A-50-145124 and JP-A-58-12012
No. 5, 63-35437 and 63-35438,
Nos. 63-34539 and 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.

Representative examples of water-soluble dyes other than oxonol dyes and merocyanine dyes include water-soluble yellow dyes AIY-15 to AIY-18, AIM-18 described in Japanese Patent Application No. 7-150291. 15-AIM-
18, AIC-15 to AIC-18.

Further, examples of the water-soluble dye used 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 raw sample before development processing, which is 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 as 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, eg, gray colloidal silver, is reduced by keeping silver nitrate alkaline in gelatin in the presence of a reducing agent such as hydroquinone, phenidone, ascorbic acid, pyrogallol or dextrin, followed by neutralization. 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 coating amount of the colloidal silver was such that the reflection density of the raw sample before development measured at least at one wavelength within the exposure area for cyan image-forming silver halide was 0.8.
The amount can be selected so as to be as described above.

The color light-sensitive material of the present invention has at least one of a carboxyl group, a sulfonamide group and a sulfamoyl group in any silver halide emulsion layer and / or other hydrophilic colloid photographic constituent layers. The dye may be contained as a solid dispersion dye in a solid state.

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

[0116]

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In the general formula [1], R ₁ and R ₂ are each a hydrogen atom, an alkyl group, an alkenyl group, an aryl group, a heterocyclic group, —COOR ₅ , —COR ₅ , —SO ₂ R ₅ ,
_{-SOR 5, -SO 2 N (R} 5) R 6, -CON (R 5)
R ₆ , -N (R ₅ ) R ₆ , -N (R ₅ ) SO ₂ R ₆ , -N (R
₅ ) COR ₆ , —N (R ₅ ) CON (R ₆ ) R ₇ , —N
(R ₅ ) CSN (R ₆ ) represents R ₇ , —OR ₅ , —SR ₅ or a cyano group, and R ₃ and R ₄ are each a hydrogen atom, an alkyl group, an alkenyl group, a cycloalkyl group, an aryl group or a hetero group. Represents a ring group. R ₅ , R ₆ and R ₇ are each a hydrogen atom,
Represents an alkyl group, an alkenyl group, an aryl group or a heterocyclic group, and L _{1 to} L ₅ represent a methine chain. n1 represents an integer of 0 or 1, and n2 represents an integer of 0 to 2.

[0118]

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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 acid required to form an oxonol dye. Represents the nucleus.

[0120]

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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 and R ₄ respectively. Represents the same meaning.

X ₁ and X ₂ each represent an oxygen atom or a sulfur atom.

[0123]

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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).

Each of R ₁₂ and R ₁₃ represents a hydrogen atom or an alkyl group. n3 represents an integer of 1 to 3.

[0127]

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In the general formula [5], R ₃ , R ₄ , L ₁ ,
L ₂ , L ₃ and n1 are R ₃ , R ₄ and L in the general formula [1].
₁ , L ₂ , L ₃ and n1 have the same meanings, respectively,
Has the same meaning as E in the general formula [2]. R ₁₀ and R ₁₁ represents the formula in [4] and R ₁₀ and R ₁₁ the same meaning, respectively, R ₁₄ represents the same meaning as R _10. ]

[0129]

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In the general formula [6], R ₃ , R ₄ , L ₁
L ₅ , n1 and n2 represent R ₃ , R ₄ ,
L _{1 to} L ₅ , n ₁ and n ₂ have the same meanings, respectively, and R
_10, R ₁₁ and X ₃ each represent the same meaning as R _10, R ₁₁ and X ₃ in the general formula [4]. X ₄ and X _3,
R ₁₅ and R ₁₆ each have the same meaning as R ₁₀ .

[0131] X ^- represents a group having an anion. Also, R
₁₀ and R ₁₁ , and R ₁₅ and R ₁₆ can form a ring double bond.

[0132]

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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.

[0134]

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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 general formulas [1] to [8] are described in JP-A-7-150291.
-7.

The carboxyl group, sulfonamide group,
The dye having at least one 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 a method of dissolving in a 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, more preferably 1 μm or less;
m) or less in gelatin or a polymer binder, it can be contained in any photosensitive emulsion layer or non-photosensitive hydrophilic colloid layer in a photographic component layer.

The carboxyl group, sulfonamide group,
The solid fine particle dispersion of a dye having at least one sulfamoyl group is insoluble in water and is stably present in the color photographic material. However, after the exposure, it 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 color photographic material.

As the dye having at least one of a carboxyl group, a sulfonamide group and a sulfamoyl group, two or more dyes may be used, or a water-soluble dye may be used in combination depending on the purpose of use.

The content of the dye having at least one of a carboxyl group, a sulfonamide group and a sulfamoyl group is determined by measuring the reflectance of a raw sample before development measured at least at one wavelength within the exposure area for cyan image-forming silver halide. The amount can be selected and added so that the concentration becomes 0.8 or more. Specifically, generally 0.001 to 0.5 g / m
^It is preferably used to be ² .

The support preferably used in the present invention has both sides of a paper substrate coated with a resin containing a polyolefin resin as a main component. When obtained by analysis, it is preferable that the integrated value (PY value) of the power spectrum in the frequency section of 1 to 12.5 mm on the surface of the support is 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 exceeding 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.

In order 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 analyzed by 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 and a dye which are generally used in papermaking may be blended in the support. An agent, a surface strengthening agent, an antistatic agent and the like may be appropriately applied to the surface.

The reflecting support is usually 50 to 300 g / m 2.
A resin having a smooth surface having a weight of ² is used, and the resin for laminating the both surfaces is ethylene, α-olefins, for example, a homopolymer such as polypropylene, a copolymer of at least two kinds of the olefins or It can be selected from at least two kinds of mixtures of these various polymers. 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 is usually in the range of 20,000 to 200,000.

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, 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,
In general, in order to increase the flatness of the developed photographic paper in a common environment, a method of slightly increasing the density of the resin layer on the front side or increasing the amount of lamination on the back side compared to the front side 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 support surface (the surface on which the emulsion layer is provided) is preferably dispersed and mixed with 13 to 20% by weight, more preferably 15 to 20% by weight of a white pigment. As the white pigment, an inorganic and / or organic white pigment can be used, and preferably an inorganic white pigment, such as a sulfate of an alkaline earth metal such as barium sulfate, calcium carbonate, or the like. Alkaline earth metal carbonates, finely divided silica, synthetic silicate silica, calcium silicate, alumina, alumina hydrate, titanium oxide, zinc oxide, talc, clay and the like.

Among 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, a color pigment for improving whiteness, and a fluorescent whitening agent.

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 surface shape 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 a 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 photosensitive material has an image forming surface having a surface roughness of 0.
The thickness is preferably from 30 to 3.0 μm. For this purpose, a matting agent can be contained in the constituent layer on the image forming surface side of the photosensitive material. The layer to which the matting agent is added includes a silver halide emulsion layer, a protective film, an intermediate layer, an undercoat layer, and the like, and 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 matter. For example, the gloss of the processed surface of the image forming layer measured by a method specified in JIS-Z-8741. Those having a degree GS (60 °) of 5 to 60 are preferred.

In a preferred embodiment of the present invention, it is preferable to form a protective layer on the outermost surface of the light-sensitive material, and to add fine particle powder to the protective layer. Japanese Patent Application Laid-Open No. 6-95283 describes a fine particle powder (matting agent) and a method of using the same.
It is preferable to use the technique described in page 4, left column, line 42 to page 4, right column, line 33.

In the present invention, a support of a synthetic resin film such as polypropylene, the surface of which is further coated with polyolefin, can be used.

The thickness of the reflective support is not particularly limited.
Thicknesses of from 0 to 160 μm are preferred, especially from 90 to 130 μm.
More preferably, the thickness is μm.

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. Such a problem with the rotating drum is not mentioned at all in the above-mentioned Japanese Patent Application Laid-Open No. 4-330337. According to the configuration of the present invention, for the first time, it is possible to perform high-speed image writing with high productivity, uniformity, and high definition using an infrared laser.

In the present invention, scanning exposure is performed on a color photosensitive material based on dot image information composed 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 dot image information is such that the number of halftone dots per inch ² is 200 × 10 ³ or more when the halftone dot area ratio is 40%. It has a particularly remarkable effect when using the converted one. Preferably 300 × 10
³ or more, more preferably 400 × 10 ³ or more, especially 400
× 10 ^{3 to} 2000 × 10 ³ is preferred. The number of the halftone dots can be measured by counting halftone images captured by an optical microscope or the like.

The infrared-sensitive silver halide emulsion layer in the invention 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 to be used in the present invention is not particularly limited, but may be tricarbocyanine and / or 4-carboxy.
Dicarbocyanine dyes containing a quinoline nucleus are preferred, and tricarbocyanine is particularly preferred.

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

[0167]

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In the general formula [Ia] or [Ib], R
¹ and R ² may be the same or different and each has an alkyl group (preferably having 1 to 18 carbon atoms, methyl, ethyl, propyl, butyl, pentyl, heptyl, etc.), a substituted alkyl group (substituent As a carboxyl group, a sulfo group,
Cyano group, etc.), halogen atom (fluorine, chlorine, bromine, etc.), hydroxyl group, alkoxycarbonyl group (for example, methoxycarbonyl, ethoxycarbonyl, benzyloxycarbonyl and the like having 8 or less carbon atoms), alkoxy group (for example, carbon atom Methoxy, ethoxy, propoxy, butoxy, benzyloxy and the like having the number of 7 or less, aryloxy group (such as phenoxy and p-tolyloxy), acyloxy group (for example, acetyloxy and propionyloxy having 3 or less carbon atoms), and acyl group (Eg, acetyl, propionyl, benzoyl, mesyl, etc. having 8 or less carbon atoms), carbamoyl group (carbamoyl, N,
N-dimethylcarbamoyl, morpholinocarbamoyl,
Piberidinocarbamoyl, etc.), sulfamoyl group (sulfamoyl, N, N-dimethylsulfamoyl, morpholinosulfonyl, etc.), aryl group (phenyl, p-hydroxyphenyl, p-carboxyphenyl, p-sulfophenyl, α-naphthyl, etc.) ) Or the like (alkyl group having 6 or less carbon atoms). This substituent may be substituted with two or more alkyl groups.

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),
Represents a phenyl group and a benzyl group.

R ⁵ is a hydrogen atom, a lower alkyl group (eg, methyl, ethyl, propyl), a lower alkoxy group (eg, methoxy, ethoxy, propoxy, butoxy), a phenyl group, a benzyl group, or —N (W ₁ ) (W ₂ ). Here, W ₁ and W ₂ each represent a substituted or unsubstituted alkyl group (C 1 to C 18 in the alkyl portion, preferably C 1 to C 4 in the alkyl portion; methyl, ethyl, propyl, butyl, benzyl) , Phenethyl and the like) or an aryl group (phenyl, naphthyl, tolyl, p-chlorophenyl and the like), 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 to complete 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,
Ethyl, propyl, i-propyl, butyl and the like), a halogen atom (each atom such as chlorine and bromine) or an alkoxy group (methoxy, ethoxy, propoxy, i.
-Propoxy, butoxy, etc.).

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 nonmetallic atoms necessary for completing a 5- or 6-membered nitrogen-containing heterocyclic ring, for example, a thiazole nucleus (benzothiazole, 4-chlorobenzothiazole, 5-chlorobenzoyl). Thiazole, 6-chlorobenzothiazole, 7-chlorobenzothiazole, 4-methylbenzothiazole, 5-methylbenzothiazole, 6
-Methylbenzothiazole, 5-bromobenzothiazole, 6-bromobenzothiazole, 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-methoxy Naphtho [1,2-d] thiazole, 7-ethoxynaphtho [2,1-d] thiazole, 8-methoxynaphtho [2,1-d] thiazole, 5-methoxynaphtho [2
3-d] thiazole, etc.); 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.);
Dialkylindolenine nucleus (3,3-dimethylindolenine, 3,3-diethylindolenine, 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-ethylnaphtho [1 , 2-d] imidazole and the like; pyridine nucleus (pyridine, 5-methyl-2-pyridine, 3-methyl-4-pyridine and the like).

Of these, thiazole nuclei and oxazole nuclei are preferably used. More preferably, a benzothiazole nucleus, a naphthothiazole nucleus, a naphthoxazole nucleus or a benzoxazole nucleus is advantageously used.

[0176] 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].

[0178]

Embedded image

In the general formula [II], R ¹¹ and R ¹² are
R ¹ and R ^{2 of the} above general formula [Ia] or [Ib]
Represents the same group 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 is a hydrogen atom, a lower alkyl group (methyl,
Represents an alkoxy group (e.g., methoxy, ethoxy, butoxy), a halogen atom (e.g., fluorine, chlorine), and a substituted alkyl group (e.g., trifluoromethyl, carboxymethyl).

Z ³ represents the same group as Z ¹ and Z ² described above.
X ₂ ^- and p are each represented by the general formulas [Ia] and [Ib].
Specific examples of these infrared sensitizing dyes have the same meanings as X ₁ ^- and p, and q and r each represent 1 or 2.
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.

The light-sensitive material of the present invention may have a hydrophilic colloid layer containing fine powder and having a dry film thickness of 3 to 15 μm on the surface of the reflection support opposite to the side having the silver halide emulsion layer. preferable. 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.

The light-sensitive material of the present invention has a total amount of the hydrophilic binder on the emulsion layer side of the reflective support of 5 g per unit area.
/ M ^{2 to} 10 g / m ² . Still more preferably ^{6g / m 2 ~9g / m 2} . Total with the amount per unit area of the hydrophilic binder viewed from support on the side opposite to the emulsion layer, it is preferable to provide a layer which is ^{3g / m 2 ~8g / m 2} .

Examples of the matting agent which can be used in the present invention include crystalline or non-crystalline silica, titanium dioxide, magnesium oxide, calcium carbonate, barium sulfate, strontium barium sulfate, magnesium aluminate silicate, silver halide, 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 10 μm.
It is.

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 = Σniri / 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, if necessary, other additives are added, and dispersed by an emulsification dispersion method using a shear stress by a high-speed rotation mixer, a homogenizer, an ultrasonic dispersion, a ball mill, or the like. It can be formed by coating.

[0188] The coating amount of the matting agent layer is contained 1 m ²
50 to 500 mg is preferable, more preferably 7
0 to 300 mg. Further, the content of the matting agent is preferably 3 to 50% by weight, more preferably 5 to 20% by weight, based on the hydrophilic binder.

In the present invention, it is preferable that the silver halide photographic light-sensitive material is previously loaded in a cartridge which can be wound in a roll and handled in a bright room. In a cartridge that can be handled in a light room, a light-sensitive material drawer that can be smoothly pulled out from the cartridge when it is mounted on an apparatus is provided with a light shielding unit that prevents the photosensitive material in the light room from receiving light in the light room. Yes,
Normally, when handled in a light room, the photosensitive material inside is not exposed to light.

In the present invention, a light-sensitive material wound in a roll shape is loaded in a bright room cartridge in advance.
Moreover, it is preferable that the photosensitive material is wound so that the emulsion surface is arranged outside the roll.

The support used in the light-sensitive material of the present invention has a Taber stiffness.
ss) is preferably from 0.8 to 4.0. The Taber stiffness is a stiffness measuring instrument V-5 model 150B TaberV-5 Stiffness as a measuring instrument.
tester (TABER INSTRUMENT
-A TELEDYNE COMPANY). 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 present invention, the layer constitution is not particularly limited, but it is preferred that the emulsion layer having the longest spectral sensitivity wavelength be 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.

As a silver halide emulsion used in 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, may be performed chemically using a fogging agent, may use a strong developing solution, and may be heat treatment.

The entire surface exposure is carried out by immersing or moistening the image-exposed photosensitive material in a developing solution or another aqueous solution, and thereafter performing uniform exposure over the entire surface. The light source used here may be any light source as long as it has light in the photosensitive wavelength region of the photosensitive material,
Further, high illuminance light such as flash light can be applied for a short time, or weak light can be applied for a long time. 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. Usually, when the exposure amount is excessively increased, the minimum density increases or desensitization occurs, and the image quality tends to be reduced.

As a technique for fogging agents that 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.

The non-pre-fogged internal latent image type silver halide grains which can be used in the light-sensitive material of the present invention include:
An emulsion having a silver halide grain that mainly forms a latent image inside the silver halide grain and has most of the photosensitive nuclei inside the grain, and includes any silver halide such as silver bromide and silver chloride. Silver chlorobromide, silver chloroiodide, silver iodobromide, silver chloroiodobromide and the like are included.

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 Water was added to 1000 ml (Internal developer B) Methol 2 0.0g Sodium sulfite (anhydrous) 90.0g Hydroquinone 8.0g Sodium carbonate (monohydrate) 52.5g Potassium bromide 5.0g Potassium iodide 0.5g Add water 1000ml Internal latent image preferably used in the present invention Silver halide 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 shape of silver halide grains used in the present invention may be cubic, octahedral, tetrahedral composed of a mixture of (100) and (111) planes, shape having (110) plane, sphere, flat plate, etc. 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 a range of ± 20% of the center of the average particle size 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).

Particularly preferred highly monodisperse emulsions are those having a distribution width of not more than 20% defined by (particle size standard deviation / average particle size) × 100 = width of distribution (%).
Here, the average particle size and the particle size standard deviation are determined from ri defined above.

A monodisperse emulsion is prepared by adding a water-soluble silver salt solution and a water-soluble halide solution to a gelatin solution containing seed 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 within a wide range in consideration of the required properties, particularly various characteristics such as sensitivity, sensitivity balance, color separation sharpness, and graininess. Can be determined from

In one of the preferred embodiments, the grain size of the silver halide is 0.1 to 0.6 μm for the red-sensitive layer emulsion.
The green-sensitive layer emulsion is 0.15 to 0.8 μm, and the blue-sensitive layer emulsion is 0.1 to 0.8 μm.
A range of 3 to 1.2 μm can be preferably 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, and particularly preferably described in JP-A-6-95283, page 20, left column, lines 5 to page 20, right column, line 2. Of the general formula [XI
I] to [XIV]. In addition, as a specific example of the compound,
For example, compounds (1) to (39) described on pages 11 to 15 of JP-A-64-73338 can be exemplified.

[0208] 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.

The yellow image-forming property, magenta image-forming property and cyan image-forming silver halide emulsion layer in the color light-sensitive material of the present invention contain a silver halide emulsion having a spectral sensitivity wavelength region different from each other, and In at least one of the yellow, magenta, and cyan image-forming silver halide emulsion layers, an emulsion having a spectral sensitivity wavelength region different from each other contained in the yellow, magenta, and cyan image-forming silver halide emulsion layers. Both of them preferably contain a silver halide emulsion having a spectral sensitivity having a common portion.

As the magenta coupler to be used in the light-sensitive material 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 is preferable because of excellent spectral absorption characteristics of the coloring dye. . Preferred examples of the compound include compounds M-1 to M-19 described on pages 8 to 11 of the same publication. Still other specific examples include compounds M-1 to M-61 described in EP 0,273,712, pp. 6-21 and 0,235,913, pp. 36-92. Among the compounds 1 to 223, other than the above specific examples.

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 λmax of the spectral absorption of the magenta image formed in the photosensitive material according to the present invention is 530 to 560n.
m is preferable, and λL0.2 is 580 to 580.
It is preferably 635 nm.

Here, λL of the spectral absorption of the magenta image
0.2 and λmax are values measured by the following method.

(Measurement Method of λL0.2 and λmax) When a positive emulsion is used for the light-sensitive material, the color light-sensitive material is
After uniformly exposing with the minimum amount of red light to obtain the minimum density of the cyan image and uniformly exposing with the minimum amount of blue light to obtain the minimum density of the yellow image, the white light is passed through the ND filter. After applying, when developed, an integrating sphere was attached to the spectrophotometer, and the maximum value of the absorbance when the spectral absorption of 500 to 700 nm was measured with zero correction with a standard white plate of magnesium oxide was 1.0. Then, the density of the ND filter is adjusted to produce a magenta image. When a magenta coupler or a negative emulsion is used for the light-sensitive material, the density of the ND filter is adjusted so that when the magenta image is formed by applying green light through an ND filter and developing to form a magenta image, the same maximum absorbance as the above positive is obtained. Adjust.
λL0.2 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 general formula (M-1), when combined with the magenta coupler represented by the general formula [M-1], the p of the coupler represented by the general formula [M-1] is combined.
It is a yellow coupler having a pKa value not lower than Ka by 3 or more.

Specific examples of the above-mentioned yellow couplers include Y-1 and Y-2 described on pages 12 to 13 of JP-A-6-95283 and JP-A-2-139542.
(Y-1) to (Y-58) described on pages 17 to 17 can be preferably used, but are not limited thereto.

As the cyan coupler contained in the cyan image forming layer, known phenol, naphthol or imidazole couplers can be used. For example, a phenol coupler substituted with an alkyl group, an acylamino group or a ureido group, a naphthol coupler formed from a 5-aminonaphthol skeleton, a bi-equivalent naphthol coupler having an oxygen atom introduced as a leaving group, and the like are typical. It is. Of these, preferred compounds are those represented by the general formula [C] described in JP-A-6-95283, page 13.
-I] and [C-II].

The cyan coupler is generally used in an amount of 1 × 10 ^-3 to 1 mol, preferably 1 × 10 ^-2 to 1 mol per mol of silver halide.
It can be used in the range of 8 × 10 ^-1 mol.

As the yellow coupler contained in the yellow image forming layer, known acylacetanilide couplers and the like can be preferably used. Specific examples of the yellow coupler include, for example, JP-A-3-24134.
Compounds represented by Y-I-1 to Y-I-55 described in No. 5, pages 5 to 9, or JP-A-3-209466 11-14.
Compounds represented by Y-1 to Y-30 on the page 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, the λmax of the spectral absorption of the formed yellow image is preferably 425 nm or more, and λL0.2 is preferably 515 nm or less.

The λL0.2 of the spectral absorption of the yellow image is a value defined by the contents described in JP-A-6-95283, page 21, right column, lines 1 to 24. It is a spectral absorption characteristic showing the magnitude of absorption.

The yellow coupler is usually silver halide 1
1 × 10 ⁻³ to 1 mol, preferably 1 × 10 ⁻² per mol
It can be used in a range of ８8 × 10 ⁻¹ mol.

In order to adjust the spectral absorption characteristics of the magenta, cyan and yellow images, it is preferable to add a compound having a color tone adjusting effect. As the compound for this, compounds represented by the general formulas [HBS-I] and [HBS-II] described in JP-A-6-95283, page 22, are more preferable, and more preferably the compounds represented by the general formula described on page 22 of the same publication. It is a compound represented by [HBS-II].

The yellow, magenta and cyan image forming layers in the light-sensitive material of the present invention are laminated and coated on a support. The order from the support may be any order. One preferred embodiment is, for example, a cyan image forming layer, a magenta image forming layer, and a yellow image forming layer from the side close to the support. In addition, an intermediate layer, a filter layer, a protective layer, and the like can be provided as necessary.

In each of the magenta, cyan, and yellow couplers, an anti-fading agent can be used in combination 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 more, 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 high boiling organic solvents which can be used to dissolve and disperse couplers 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 formula [H] described in JP-A-6-95283, page 22.
Compounds represented by BS-I] and [HBS-II], particularly preferably compounds represented by [HBS-II]. Specific compounds include, for example, JP-A-2-124
No. 568, pp. 53-68.
95.

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 that reacts with an oxidized developing agent is added to a layer between the light-sensitive layers to prevent color turbidity, or added to a silver halide emulsion layer to prevent fog. 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-4-133056, and the compounds II-1 to 11 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 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.

Gelatin is preferably used as a binder in the light-sensitive material. In particular, gelatin extract is subjected to hydrogen peroxide treatment to remove coloring components of gelatin,
Gelatin whose transmittance has been improved by extracting from raw material ossein that has been subjected to a hydrogen peroxide treatment or using ossein manufactured from uncolored raw bone is preferable.
Gelatin may be any of alkali-treated ossein gelatin, acid-treated gelatin, gelatin derivative, and modified gelatin, and particularly preferably alkali-treated ossein gelatin.

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.

Gelatin jelly strength (by the Paggy method)
Is preferably at least 250, particularly preferably 27
0 or more.

The ratio of gelatin to the total coated gelatin is not particularly limited, but it is preferable to use a large ratio, and more specifically, to use a ratio of at least 20 to 100% to obtain a favorable effect.

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 light-sensitive material of the present invention, the reflection density of a 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 light-sensitive material can be obtained by including a coloring material such as a dye having absorption at the above-mentioned wavelength and black colloidal silver in any of the photographic constituent layers.

The color light-sensitive material of the present invention may contain a water-soluble dye in any of the silver halide emulsion layers and / or other hydrophilic colloid photographic constituent layers. A dye having at least one of a carboxyl group, a sulfonamide group and a sulfamoyl group may be contained as a solid fine particle dispersion in an arbitrary silver halide emulsion layer and / or another hydrophilic colloid photographic component layer. it can. Examples of the dye having at least one of a carboxyl group, a sulfamoyl group and a sulfonamide group include JP-A-6-952.
No. 83, pp. 14-16, compounds represented by formulas [I]-[IX].

Of the above general formulas [I] to [IX], [I] to [I]
Specific examples of the dye represented by [VIII] include, for example, I-1 to VIII described in JP-A-4-18545, pages 13 to 35.
-7, but is not limited thereto.

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.

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.

It is preferred to add a compound for adjusting the toe gradation 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 in order to improve the white background.

When developing the light-sensitive material with a color developing solution, the developing solution, the bleach-fixing solution and the stabilizing solution are respectively a replenishing developer, a replenishing bleaching solution, a replenishing fixing solution, a replenishing bleach-fixing solution, Development processing can be continuously performed while replenishing a replenishing stabilizing solution or the like.

In the present invention, the effect of the present invention can be more effectively exhibited when the replenishment amount of the developing solution is 700 ml or less per 1 m ^{2 of the} photosensitive material. More preferably 500 ml
It is as follows. Is similar to the well developing solution for other processing solutions, the amount of replenishing photosensitive material 1 m ² per 700ml or less,
More preferably, when it is 500 ml or less, the effects of the present invention can be more effectively exhibited.

Examples of the developer which can be used in the developer used for developing the photosensitive material include ordinary silver halide developers, for example, polyhydroxybenzenes such as hydroquinone, aminophenols, 3-pyrazolidones, ascorbic acid and the like. Derivatives, reductones, phenylenediamines, etc., or mixtures thereof are included.

Specifically, hydroquinone, aminophenol, N-methylaminophenol, 1-phenyl-3
-Pyrazolidone, 1-phenyl-4,4-dimethyl-3
-Pyrazolidone, 1-phenyl-4-methyl-4-hydroxymethyl-3-pyrazolidone, ascorbic acid,
N, N-diethyl-p-phenylenediamine, diethylamino-o-toluidine, 4-amino-3-methyl-N
-Ethyl-N- (β-methanesulfonamidoethyl) aniline, 4-amino-3-methyl-N-ethyl-N-
(Β-hydroxyethyl) aniline, 4-amino-N-
Ethyl-N- (β-hydroxyethyl) aniline, 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 the silver halide during immersion in a high pH aqueous solution.

The developer may further contain a specific antifoggant and a development inhibitor, 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 devices and systems for image formation include Konsens manufactured by Konica Corporation.
usL, Konsensus570, Konsensu
sII and the like can be mentioned.

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.

[0257]

EXAMPLES The present invention will now be described specifically with reference to examples, but embodiments of the present invention are not limited thereto.

The 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 used in the image forming method of the present invention.

Light source unit 1 having a laser light source and / or light emitting diode light source, light source unit 2 having a laser light source and / or light emitting diode light source, light source unit 3 having a laser light source and / or light emitting diode light source
Is irradiated on a silver halide photographic material 6 set on a rotating drum 5 through an optical unit 4 of an optical system.

FIG. 2 is a conceptual view of a laser light source unit showing an example of a light source unit used in the image forming method of the present invention.

Laser oscillator light source or light emitting diode light source 21, laser oscillator light source or light emitting diode light source 2
2. The laser light emitted from the laser oscillator light source or the light emitting diode light source 23 is image-exposed on the silver halide photographic material set on the rotating drum 27 as a plurality of beam spots via the optical units 25 and 26.

FIG. 3 is a conceptual diagram showing an example of an image forming apparatus used in the image forming method of the present invention.

The silver halide photographic light-sensitive material 31 wound in a roll and housed in a bright room cartridge is wound on a rotating drum 32 and then developed to form a final image.

When an image composed of dot information was formed in the apparatus having the above configuration, a clear image without unevenness could be stably obtained.

Example 1 Preparation of Emulsion EM-P1 While controlling the aqueous solution containing ossein gelatin at 40 ° C., an aqueous solution containing ammonia and silver nitrate, potassium bromide and sodium chloride (KBr: NaCl = 9
And an aqueous solution containing 5: 5) was simultaneously added by a control double jet method to obtain a cubic silver chlorobromide core emulsion having a particle size of 0.30 μm. At that time, the pH and pAg were controlled so that a cube was obtained as the particle shape.

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 to the obtained core emulsion 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 emulsion EM-P1. The distribution width of this emulsion EM-P1 was 8%.

Preparation of Emulsion EM-P2 While controlling the aqueous solution containing ossein gelatin at 40 ° C., an aqueous solution containing ammonia and silver nitrate, potassium bromide and sodium chloride (KBr: NaCl = 9 by molar ratio)
5: 5) was added simultaneously by a control double jet method to obtain a cubic silver chlorobromide core emulsion having a particle size of 0.24 μm. 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 0.36 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 emulsion EM-P2. The distribution width of this emulsion EM-P2 was 8%.

Preparation of Emulsion EM-P3 While controlling the aqueous solution containing ossein gelatin at 40 ° C., an aqueous solution containing ammonia and silver nitrate, potassium bromide and sodium chloride (KBr: NaCl = 9 by molar ratio)
5: 5) was added simultaneously by a control double jet method to obtain a cubic silver chlorobromide core emulsion having a particle size of 0.18 μm. At that time, the pH and pAg were controlled so that a cube was obtained as the particle shape.

An aqueous solution containing ammonia and silver nitrate and an aqueous solution containing potassium bromide and sodium chloride (molar ratio KBr: NaCl = 40: 60) were simultaneously added to the obtained core emulsion by 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 distribution width of this emulsion EM-P3 was 8%.

-Preparation of Green-Sensitive Silver Halide Emulsion- After optimally sensitizing the emulsion EM-P1 by adding a sensitizing dye GS-1, T-1 (4-hydroxy-6-methyl-1,
3,3a, 7-tetrazaindene) per mole of silver
By adding 00 mg, a green sensitive emulsion Em-1G was prepared.

After sensitizing dye GS-1 was added to emulsion EM-P2 for optimal color sensitization, T-1 (4-hydroxy-6-
Methyl-1,3,3a, 7-tetrazaindene)
A green-sensitive emulsion Em-2G was prepared by adding 600 mg per mol.

Preparation of Red-Sensitive Silver Halide Emulsion A red-sensitive silver halide emulsion was prepared in the same manner as the green-sensitive emulsion Em-1G, except that sensitizing dyes RS-1 and RS-2 were added to the emulsion EM-P2 to optimize the color sensitization. A light-sensitive emulsion Em-2R was prepared.

Sensitizing dyes RS-1 and R were added to emulsion EM-P3.
Red-sensitive emulsion Em- except that color sensitization was optimized by adding S-2
Red-sensitive emulsion Em-3R was prepared in the same manner as in 1R.

-Preparation of Infrared-Sensitive Silver Halide Emulsion- The same procedure as in the green-sensitive emulsion Em-1G was carried out except that the sensitizing dyes IRS-1 and IRS-2 were added to the emulsion EM-P3 to optimize the color. Thus, an infrared-sensitive emulsion Em-3IFR was prepared.

[0280]

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[0281]

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<< Preparation of Multilayer Silver Halide Color Photographic Material Sample >> A high-density polyethylene was laminated on one side and a molten polyethylene containing anatase-type titanium oxide in a content of 15% by weight was laminated on the other side. The above E was placed on a paper pulp reflective support weighing 115 g per square meter.
Using m-2G, Em-3R and Em-3IFR, each layer having the following structure was coated on the side of the polyethylene layer containing titanium oxide, and 6.00 g of gelatin was further formed on the back side.
/ M ^2, and the silica matting agent 0.65 g / m ² to prepare a multilayer silver halide color photographic material sample 11 was coated.
Incidentally, H-1 and H-2 were added as hardeners. Surfactants SU-1 and SU-
2, SU-3 was added and prepared.

SU-1: sodium sulfosuccinate di (2-ethylhexyl) ester 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 The coating amount of the compound in each layer was represented by g / m ² .

Eighth layer (ultraviolet absorbing layer) Coating amount (g / m ² ) 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 matting agent 0.01 Seventh layer (green-sensitive layer) gelatin 1.25 Green-sensitive silver chlorobromide emulsion (Em-2G) 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 6th layer (intermediate layer) gelatin 0.80 Stain inhibitor (HQ-2) 0.03 Stain inhibitor (HQ-3) 0.01 Anti-irradiation dye (AI-1) 0.04 5th layer (red sensitive layer) gelatin 0.90 Red-sensitive silver chlorobromide emulsion (Em-3R) 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 organic solvent (SO-1) 0.18 Fourth layer (intermediate layer) gelatin 0.80 Stain inhibitor (HQ-2) 0.03 Stain inhibitor (HQ-3) 0.01 Anti-irradiation dye (AI-2) 0.05 Third layer (infrared-sensitive layer) Gelatin 1.10 Infrared-sensitive 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) Zera Tin 1.20 First layer (colloidal silver layer 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 Support Polyethylene laminate Paper (contains a trace amount of colorant) * The amount of silver halide emulsion added was expressed in terms of silver.

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

[0287]

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[0288]

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[0289]

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[0290]

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A sample 12 was prepared according to the sample 11 obtained above.
~ Sample 13 was produced. However, only the emulsion types of the fifth layer and the seventh layer of Sample 11 were changed as follows. No change in the amount attached.

Further, samples 11 to 13 were prepared by replacing the fifth layer and the seventh layer of each sample with samples 14 to 16, respectively.

[0293]

[Table 1]

The spectral sensitivity peaks of the emulsion layers of the light-sensitive material obtained above were 548 nm for the green-sensitive emulsion and 6 for the red-sensitive emulsion.
70 nm, and the infrared-sensitive emulsion was 785 nm.

The 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 turned upside down, processed into a roll shape, and stored in a bright room type cartridge.

The roll 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, and the sample was pulled out from the cartridge and cut into a predetermined length, and the sample was wound around a drum. An image was formed by an image forming apparatus having an image exposing unit including three laser exposure units having different wavelengths and an automatic developing unit to obtain an output image sample.

The image exposure includes exposure with an infrared laser corresponding to a yellow halftone test chart image, green laser exposure corresponding to a magenta halftone test chart image, and red laser exposure corresponding to a cyan halftone test chart image.
Green, red, and infrared exposures corresponding to the black dot test chart image were prepared and performed. The laser light source is such that a green laser is a helium-neon laser (544 nm), and a red laser is a semiconductor laser (AlGaInAs: about 670).
nm) and a semiconductor laser (GaAlA)
s: about 780 nm). The photosensitive material was attracted to and adhered to the rotating drum, and the image was recorded by the main scanning and the sub-scanning at a rotation speed of 2000 revolutions / minute. 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 silver halide light-sensitive materials were simultaneously exposed to the silver halide light-sensitive material as 12 laser beams via optical means.
The single beam diameter of each light source unit was 22 nm.

The sensitivity ratio measured by exposure to a laser having the above wavelength was as follows.

[0300]

[Table 2]

The exposure conditions include the following exposure conditions A to E
5 conditions.

[0302]

[Table 3]

The output sample obtained by exposure under the above exposure conditions was measured for the color tone of the 50% halftone black dot. At that time, the developing temperature and the air-conditioning conditions were set in the following two types, and the deviation of the black color tone between them was evaluated as the ratio of ΔE.

Condition A Air conditioning condition: 28 ° C., relative humidity 80%, developing temperature: 40 ° C. Condition B Air conditioning condition: 23 ° C., relative humidity 50%, developing temperature: 37 ° C. Measurement of black net tone of sample output under each condition Uses a Minolta colorimeter CM-2022 to measure CIE, L ^* ,
a ^* and b ^* were measured, and the color shift between the condition a and the condition b was evaluated as ΔE.

ΔE = (ΔL ^* 2 + Δb ^* 2 + Δa ^* 2) 1/2 In addition, ΔL ^* , Δa ^* , and Δb ^* are the respective differences between the condition a and the condition b.

[0306]

[Table 4]

As is apparent from the above results, in the output sample of the exposure condition A of the sample 11 corresponding to the first aspect of the present invention, the color tone of the black dots of the black is stable even if the use environment and the processing conditions fluctuate. You can see that it is doing.

Example 2 After optimally sensitizing the emulsion EM-P3 by adding a sensitizing dye GS-1, T-1 (4-hydroxy-6-methyl-1,
3,3a, 7-tetrazaindene) per mole of silver
By adding 00 mg, a green sensitive emulsion Em-3G was prepared.

The emulsion of the fifth layer of Sample 14 of Example 1 was emulated
A sample was prepared in the same manner except that the sample was changed to -3G to obtain a sample 17. The same evaluation as in Example 1 was performed to evaluate the change in the color tone of the black dot.

[0310]

[Table 5]

As is clear from the above results, in the output sample of the exposure condition A of the sample 17 corresponding to the second aspect of the present invention, the color tone of the black dot of the black is stable even if the use environment and the processing conditions fluctuate. You can see that it is doing.

Example 3 Samples 18 and 19 having characteristic curves having the following gradation ratios were prepared by adjusting the amount of emulsion and the amount of coupler of the fifth layer of Sample 14 of Example 1.

[0313]

[Table 6]

As is clear from the above results, in the output sample of the exposure condition A of the sample 19 corresponding to the third aspect of the present invention, the color tone of the black dots of the black is stable even if the use environment and the processing conditions fluctuate. You can see that it is doing.

Example 4 Sample 2 was prepared in the same manner as in Example 1 except that the high boiling solvent in the fifth layer of Sample 14 was changed to Compound I-38 of the general formula [I].
0 was produced. Similarly, Sample 21 was prepared in the same manner except that the high boiling point solvent was changed to I-28.

[0316]

[Table 7]

As is apparent from the above results, in the output samples of the exposure conditions A of the samples 20 and 21 corresponding to claim 4 of the present invention, even if the use environment and the processing conditions fluctuate, the color tone of the halftone dot of black is changed. Is stable.

Example 5 An image was formed using the sample 14 of Example 1, but the optical system of the exposure device was adjusted so that the diameter of each beam was 15 μm and 12 μm, respectively. In the same manner as in Example 1, the color tone fluctuation of the halftone dots of black was evaluated.

[0319]

[Table 8]

As is clear from the above results, in the output sample of the exposure condition A of the sample corresponding to the fifth aspect of the present invention, the color tone of the black halftone dot is stable even if the use environment and the processing conditions fluctuate. You can see that it is.

Example 6 Preparation of Blue-Sensitive Silver Halide Emulsion After sensitizing dye BS-1 was added to emulsion EM-P1 for optimal color sensitization, T-1 (4-hydroxy-6-methyl- 1,
3,3a, 7-tetrazaindene) per mole of silver
A blue-sensitive emulsion Em-1B was prepared by adding 00 mg.

[0322]

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Using the above emulsion Em-1B, a silver halide photographic light-sensitive material having the following constitution was prepared. The coating amount of the compound in each layer was represented by g / m ² .

Tenth layer Coating amount (g / m ² ) (UV gelatin 1.60 absorbing layer) UV absorber (UV-1) 0.070 UV absorber (UV-1) 0.070 UV absorber (UV -2) 0.025 UV absorber (UV-3) 0.120 Silica matting agent 0.01 Ninth layer Gelatin 1.10 (Blue sensitive layer) Blue photosensitive emulsion (Em-1B) 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 Eighth layer Gelatin 0.80 (Intermediate layer) Stain inhibitor (HQ-2) 0.03 Stain inhibitor (HQ-3) 0.01 7th layer gelatin 0.80 (Y filter layer) Low colloidal silver 0.10 6th layer gelatin 0.80 (intermediate layer) Stain inhibitor (HQ-2) 0.03 Stain inhibitor (HQ-3) 0.01 5th layer Gelatin 1.25 (green sensitive layer) ) Green-sensitive silver chlorobromide emulsion (Em-2G) 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 Fourth layer Gelatin 0.80 (Intermediate layer) Stain inhibitor (HQ-2) 0.03 Anti-stain (HQ-3) 0.01 Anti-irradiation dye (AI-1) 0.04 Third layer gelatin 0.90 (red-sensitive layer) Red-sensitive silver chlorobromide emulsion (Em-3R) 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 organic solvent (SO-1) 0 .18 second layer gelatin 1.20 (intermediate layer) anti-irradiation dye (AI-2) 0.05 first layer gelatin 2.20 (colloidal liquid paraffin 0.55 silver-containing layer) anti-irradiation dye (AI-) 4) 0.05 Black colloidal silver 0.05 Titanium oxide 0.50 Support Polyethylene laminated paper (containing a trace amount of colorant) Using sample 22 obtained as described above, blue light, green light and red light were used. An image was formed using an image forming apparatus capable of exposing. At that time, the use environment and the development processing conditions were changed in the same manner as in Example 1, and the change in the halftone color tone of black was evaluated.

[0325]

[Table 9]

As is clear from the above results, in the output sample of the exposure condition A of the sample corresponding to claim 6 of the present invention, the color tone of the black halftone dot is stable even if the use environment and the processing conditions fluctuate. You can see that it is.

[0327]

According to the color image forming method of the present invention, a silver halide photographic light-sensitive material is scanned and exposed with a laser or a light emitting diode to obtain a color image. In the color plate making / printing process, scanning exposure is performed on a silver halide photographic material from halftone image information obtained by color separation and halftone image conversion to obtain a color image. In addition, the color tone of the black dots is stable and has an excellent effect.

[Brief description of the drawings]

FIG. 1 is a conceptual diagram illustrating an example of an exposure apparatus used for an image forming method of the present invention.

FIG. 2 is a conceptual diagram of a laser light source unit showing an example of a light source unit used in the image forming method of the present invention.

FIG. 3 is a conceptual diagram illustrating an example of an image forming apparatus used in the image forming method of the present invention.

[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

Claims (6)

[Claims] 1. A silver halide emulsion layer containing a yellow coupler (hereinafter also referred to as Y layer), a silver halide emulsion layer containing a magenta coupler (hereinafter also referred to as M layer), and a silver halide emulsion containing a cyan coupler on a support. Layer (hereinafter C
A silver halide photosensitive material having a yellow image forming light source selected from a laser light source or a light emitting diode, a magenta image forming light source, and a cyan image forming light source.
The sensitivity between the respective emulsion layers when exposed by the respective light sources is represented by the following formula (1): formula (1) Sy (Y) / Sy (M) ≧ 25, Sy (Y) /
Sy (C) ≧ 25Sm (M) / Sm (C) ≧ 25, Sm
(M) / Sm (Y) ≧ 25Sc (C) / Sc (Y) ≧ 2
5, Sc (C) / Sc (M) ≧ 25 (where Sy (Y) is the sensitivity of the Y layer when exposed with a light source for yellow image formation, and Sy (M) is the exposure with a light source for yellow image formation. Sy (C): sensitivity of layer C when exposed with a yellow image forming light source, Sm (Y): sensitivity of layer Y when exposed with a magenta image forming light source, Sm (M ): Sensitivity of the M layer when exposed with the light source for magenta image formation, Sm (C): Sensitivity of the C layer when exposed with the light source for magenta image formation, Sc (Y): Exposure with the light source for cyan image formation Y at the time
Sensitivity of layer, Sc (M): M when exposed with light source for cyan image formation
Sensitivity of layer, Sc (C): C when exposed with light source for cyan image formation
Layer sensitivity. The sensitivity is obtained as the reciprocal of the exposure amount at which the density of minimum density + 0.2 is obtained. ) And the maximum exposure amount when exposing with the respective light sources is represented by the following 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: maximum exposure of the light source for yellow image formation) Amount Em: Maximum exposure amount of light source for magenta image formation Ec: Maximum exposure amount of light source for cyan image formation) and the M layer is a magenta coupler represented by the following general formula [MI] or [M-II] A color image forming method, wherein the layer is located farther from the support than the Y layer and the C layer. Embedded image Wherein R ¹ and R ² each represent a hydrogen atom or a substituent;
X may be the same or different, or may be bonded to each other to form a ring, and X represents a hydrogen atom or a group capable of leaving upon coupling with an oxidized form of a color developing agent. ] 2. A silver halide photosensitive material having a silver halide emulsion layer containing a yellow coupler, a silver halide emulsion layer containing a magenta coupler, and a silver halide emulsion layer containing a cyan coupler on a support is selected from a laser light source and a light emitting diode. In a color image forming method using a light source for forming a yellow image, a light source for forming a magenta image, and a light source for forming a cyan image, the sensitivity between the respective emulsion layers when exposed with the respective light sources is expressed by the above formula (1). And the maximum exposure amount when exposing with each of the light sources is represented by the above formula (2), and M in the Y layer, the M layer, and the C layer.
The average grain size of the silver halide emulsion grains contained in the layer is Y
A color image forming method, wherein the average particle diameter of each silver halide emulsion particle contained in the layer, the M layer and the C layer is the smallest. 3. A silver halide photosensitive material having a silver halide emulsion layer containing a yellow coupler, a silver halide emulsion layer containing a magenta coupler, and a silver halide emulsion layer containing a cyan coupler on a support is selected from a laser light source and a light emitting diode. In a color image forming method using a light source for forming a yellow image, a light source for forming a magenta image, and a light source for forming a cyan image, the sensitivity between the respective emulsion layers when exposed with the respective light sources is expressed by the above formula (1). The maximum exposure amount when exposing with each of the light sources is represented by the above formula (2), and on the characteristic curve of at least one of the Y layer, the M layer, and the C layer, the minimum density +0 With respect to the absolute value of the slope of the straight line connecting the point indicating 0.5 and the point indicating the minimum density +1.0, the point indicating the minimum density +1.0 and the point indicating the minimum density +1.3 are A color image forming method, wherein the ratio of the absolute values of the inclinations of the connected straight lines is 0.60 to 0.80. 4. A silver halide photosensitive material having a silver halide emulsion layer containing a yellow coupler, a silver halide emulsion layer containing a magenta coupler, and a silver halide emulsion layer containing a cyan coupler on a support is selected from a laser light source and a light emitting diode. In a color image forming method using a light source for forming a yellow image, a light source for forming a magenta image, and a light source for forming a cyan image, the sensitivity between the respective emulsion layers when exposed with the respective light sources is expressed by the above formula (1). And the maximum exposure amount when exposing with each of the light sources is represented by the formula (2), and the maximum exposure amount is represented by any one of the Y layer, the M layer, and the C layer of the silver halide photographic material. A color image forming method comprising a high boiling point solvent represented by the following general formula [I]. Embedded image Wherein R ₅ , R ₆ and R ₇ are each an alkyl group,
Represents an alkenyl group, a cycloalkyl group or an aryl group. ] 5. A silver halide photosensitive material having a silver halide emulsion layer containing a yellow coupler, a silver halide emulsion layer containing a magenta coupler, and a silver halide emulsion layer containing a cyan coupler on a support is selected from a laser light source and a light emitting diode. In a color image forming method using a light source for forming a yellow image, a light source for forming a magenta image, and a light source for forming a cyan image, the sensitivity between the respective emulsion layers when exposed with the respective light sources is expressed by the above formula (1). And the maximum exposure amount when performing exposure with the respective light sources is represented by the above formula (2), and the beam diameter of the respective light sources on the surface of the silver halide photographic material is 20 μm or less. A color image forming method, comprising: 6. A silver halide photosensitive material having a silver halide emulsion layer containing a yellow coupler, a silver halide emulsion layer containing a magenta coupler, and a silver halide emulsion layer containing a cyan coupler on a support is selected from a laser light source and a light emitting diode. In a color image forming method using a light source for forming a yellow image, a light source for forming a magenta image, and a light source for forming a cyan image, the sensitivity between the respective emulsion layers when exposed with the respective light sources is expressed by the above formula (1). And the maximum exposure amount when performing exposure with the respective light sources is represented by the above formula (2), and at least one of the light sources is a laser light source or a light emitting diode having a wavelength of 370 nm to 500 nm. A color image forming method, comprising: