JP2002148754A - Color image forming method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a color image forming method for proofreading in which a white background undergoes a small change and the color tone of black dots is stable when a color image is obtained using a silver halide photographic sensitive material and a white background is free from a change and unevenness and the color tone of black dots is stable when a color image is obtained by exposing a silver halide photographic sensitive material in accordance with dot image information obtained by color separation and dot image conversion in color plate making and printing steps. SOLUTION: In the color image forming method, a silver halide photographic sensitive material has a middle layer containing 1.0-3.0 g/m2 gelatin between a yellow image forming silver halide emulsion layer and an adjacent silver halide emulsion layer and a color developing solution contains a compound of formula (A), a compound of the formula HO-N(R)L-A and 0-2.0 g/l hydroxylamine.

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 "image forming method"), and more particularly, to an exposure developing device capable of forming a color image and a silver halide photographic material (hereinafter, simply referred to as "photosensitive material"). Material, also known as photosensitive material)
A color image forming method using, in particular, a color image used for proofing by performing exposure on a silver halide photographic material in accordance with halftone image information obtained by color separation and halftone image conversion in a color plate making and printing process It relates to a forming method.

[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.

[0003] However, there are various problems in order to put it into practical use, for example, the following.

[0004] Even when the photosensitive material is stored for a long period of time, or when a processing solution that has been stored for a long period of time is used, there arises a problem that the white background fluctuates and the color tone of the image fluctuates. To solve these problems, various methods such as adding a stabilizer and an inhibitor to the emulsion and stabilizing the developing solution have been proposed, but no sufficient effect has been obtained.

[0005]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a color image using a silver halide photographic light-sensitive material, in which the fluctuation of the white background is small and the color tone of the halftone dot of black is stable. An object of the present invention is to provide a color image forming method.

Further, in a color plate making and printing process, a silver halide photographic light-sensitive material is exposed according to halftone image information obtained by color separation and halftone image conversion to obtain a color image. Another object of the present invention is to provide a color image forming method for calibration in which the color tone of black dots is stable.

[0007]

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

[0008] 1. A silver halide photographic material having a silver halide emulsion layer for forming a yellow image, a silver halide emulsion layer for forming a magenta image, and a silver halide emulsion layer for forming a cyan image on a support is color-developed after image exposure. A color image forming method, comprising an intermediate layer containing 1.0 g to 3.0 g of gelatin per m ² between the yellow image forming silver halide emulsion layer and an adjacent silver halide emulsion layer; The color developing solution contains the compound represented by the general formula (A) and the compound represented by the general formula (B), and contains hydroxylamine in an amount of 0 to 2.0.
A color image forming method comprising 0 g / l.

[0009] 2. A silver halide photographic material having a silver halide emulsion layer for forming a yellow image, a silver halide emulsion layer for forming a magenta image, and a silver halide emulsion layer for forming a cyan image on a support is color-developed after image exposure. In the color image forming method, the molar ratio of the number of moles of the yellow coupler to the number of moles of the silver halide contained in the silver halide emulsion layer for forming a yellow image of the silver halide photographic material is from 5.0 to 8; And the color developing solution contains the compound represented by the general formula (A) and the compound represented by the general formula (B), and has a hydroxylamine content of 0 to 2.0 g / 1. A color image forming method comprising:

[0010] 3. A silver halide photographic material having a silver halide emulsion layer for forming a yellow image, a silver halide emulsion layer for forming a magenta image, and a silver halide emulsion layer for forming a cyan image on a support is color-developed after image exposure. In the color image forming method, the silver halide emulsion layer for forming a yellow image of the silver halide photographic light-sensitive material contains the compound represented by the general formula (I), and the color developing solution contains the compound represented by the general formula (A) A) a compound represented by the general formula (B) and hydroxylamine in an amount of 0 to 2.0 g / l.

4. A silver halide photographic material having a silver halide emulsion layer for forming a yellow image, a silver halide emulsion layer for forming a magenta image, and a silver halide emulsion layer for forming a cyan image on a support is color-developed after image exposure. A color image forming method, comprising an intermediate layer containing the compound represented by the general formula (AS) between the yellow image forming silver halide emulsion layer and an adjacent silver halide emulsion layer; In addition, the color developing solution contains the compound represented by the general formula (A) and the compound represented by the general formula (B), and contains hydroxylamine in an amount of 0 to 2.0.
A color image forming method comprising 0 g / l.

5. A silver halide photographic material having a silver halide emulsion layer for forming a yellow image, a silver halide emulsion layer for forming a magenta image, and a silver halide emulsion layer for forming a cyan image on a support is color-developed after image exposure. In the color image forming method, the silver halide light-sensitive material contains a compound represented by the general formula (HA), and the compound represented by the general formula (A) is used in a color developing solution. A color image forming method, comprising a compound represented by the formula (B) and hydroxylamine in an amount of 0 to 2.0 g / l.

Hereinafter, the present invention will be described in more detail. The silver halide light-sensitive material of the present invention has a silver halide emulsion layer for forming a yellow image, a silver halide emulsion layer for forming a magenta image, and a silver halide emulsion layer for forming a cyan image. Each of the above emulsions of the present invention has a different spectral sensitivity, and image exposure is performed with a light source having a wavelength in each spectral sensitivity region.

As the light source used in the present invention, any light source conventionally known for use in exposing photosensitive materials can be used.

In a preferred embodiment of the present invention, a silver halide photographic light-sensitive material is exposed according to halftone image information obtained by color separation and halftone image conversion to obtain a color image. According to the information, exposure according to yellow image information, exposure according to magenta image information, and exposure according to cyan image information are performed.

The light source performs exposure with light in the spectral sensitivity region of the yellow image forming emulsion layer and performs exposure with light in the spectral sensitivity region of the magenta image forming emulsion layer so that the exposure is performed according to the respective image information. Then, exposure is performed in the spectral sensitivity region of the cyan image forming emulsion layer to form a color image.

As the silver halide photographic light-sensitive material used in the image forming method of the present invention, either a negative type emulsion or a positive type emulsion can be used. The silver halide emulsion layer containing a yellow coupler and the silver halide containing a magenta coupler can be used. It has an emulsion layer and a cyan coupler (C) -containing silver halide emulsion layer, and forms a Y (yellow) halftone image, an M (magenta) halftone image, and a C (cyan) halftone image, respectively. Further, in the present invention, the formation of the halftone dot image of black can be performed by each of the Y, M and C image forming layers, and an emulsion layer for forming a black image can be added.

In the present invention, development is carried out with a color developing solution after image exposure, and the color developing solution is represented by the compound represented by the general formula (A) and the compound represented by the general formula (B). Containing the compound and hydroxylamine in the range of 0-2.
It contains 0 g / l.

In the general formula (A), R ₁ and R ₂ are
Each represents an alkyl group, and R ₁ and R ₂ may be the same or different, and R ₁ and R ₂ may combine with each other to form a ring.

As the developing agent of the general formula (A) of the present invention,
Preferably, one of R ₁ and R ₂ has a water-soluble group, and particularly preferably, R ₁ is an unsubstituted alkyl group, and R ₂ is a hydroxyalkyl group.

Specific examples of the water-soluble group in the general formula (A) of the present invention include-(CH ₂ ) _n -CH ₂ OH,-(CH ₂ ) _m -NHSO _2- (CH ₂ ) _{n- CH 3, - (CH 2)} m -O- (CH 2) n -CH 3, - (CH 2 CH 2 O) n C m H 2m + 1 (m and n each represents an integer of 0 or more.) , -CO
OH group, and as -SO ₃ H group and the like.

Specific examples of the color developing agent represented by formula (A) of the present invention are shown below.

[0023]

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[0024]

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In the present invention, particularly preferred among the color developing agents exemplified above are the compounds (A-2).

The compound of the general formula (A) of the present invention is described in J. Am. A
m. Chem. Soc. The compound can be synthesized according to the method described in Vol. 73, No. 3100.

The general formula (A) of all the developing agents in the developer
Is preferably 55 mol% or more, more preferably 70 mol% or more, more preferably 80 mol% or more, and most preferably 90 mol%.
That is all.

The addition amount of the compound of the formula (A) to the color developing solution is preferably 0.5 × 10 ^-2 mol or more, more preferably 1.0 × 10 ^-2 per liter of the color developing solution. ~
1.0 × 10 ⁻¹ mol range, more preferably 1.5
The range is from × 10 ^{-2 to} 5.0 × 10 ^-2 mol.

The compound represented by formula (B) of the present invention will be described in detail. In the general formula (B), L represents 1 to 1 carbon atoms.
It represents 10 linear or branched alkylene groups which may be substituted, and preferably has 1 to 5 carbon atoms.

Specifically, methylene, ethylene, trimethylene and propylene are preferred examples. As the substituent, a carboxy group, a sulfo group, a phosphono group,
It represents a hydroxy group or an amino group which may be alkyl-substituted, and preferred examples thereof include a carboxy group, a sulfo group and a hydroxy group. A represents a carboxy group, a sulfo group, a phosphono group, a hydroxy group, or an amino group which may be alkyl-substituted, and preferred examples thereof include a carboxy group, a sulfo group, and a hydroxy group. These are sodium,
Salts such as potassium and lithium may be used.

Preferred examples of -LA include a carboxymethyl group, a carboxyethyl group, a carboxypropyl group, a sulfoethyl group, a sulfopropyl group and a hydroxyethyl group. R is a hydrogen atom,
It represents a linear or branched alkyl group having 1 to 10 carbon atoms which may be substituted, and preferably has 1 to 5 carbon atoms. Examples of the substituent include a carboxy group, a sulfo group, a phosphono group, a hydroxy group, and an amino group which may be alkyl-substituted, and preferred examples include a carboxy group, a sulfo group, and a hydroxy group. These substituents may be salts such as sodium, potassium and lithium.

Specific examples of the compound represented by formula (B) of the present invention are shown below, but the present invention is not limited to these.

[0033]

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[0034]

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In the present invention, among the above specific compounds, Exemplified Compound B-2, Exemplified Compound B-6 and Exemplified Compound B-16 are preferable, and Exemplified Compound B-6 is particularly preferable.

In the present invention, the compound of the formula (B) is preferably contained in the color developing solution in an amount of 0.001 to 0.2 mol / liter, particularly preferably 0.005 to 0.0 mol / L.
7 mol / l, furthermore 0.01 to 0.05 mol /
Preferably, it contains liters. In the color developer,
One of the above compounds may be used alone, or two or more thereof may be used in combination. When used together, the general formula (B)
Is preferably within the above range.

The color developing solution of the present invention contains hydroxylamine at a concentration of 2.0 g / l or less. Specifically, 0g
/ L to 2.0 g / l. That is, the color developing solution of the present invention is characterized by containing at most 2.0 g / l.

The hydroxylamine of the present invention also contains a sulfate. The silver halide photographic light-sensitive material used in the image forming method of the invention according to claim 1 of the present invention comprises 1.0 g / m ² between the above-mentioned silver halide emulsion layer for forming a yellow image and an adjacent silver halide emulsion layer. It has an intermediate layer containing ~ 3.0 g of gelatin. If it exceeds 3 g, the total coating amount of gelatin increases, and the drying properties after the development processing and the physical properties such as curling are deteriorated.

The silver halide photographic light-sensitive material used in the image forming method of the present invention may be prepared by combining an emulsion-free layer such as an antihalation layer, an intermediate layer, a filter layer and a protective layer in addition to the emulsion layer. Can be.

Generally, an intermediate layer is provided between emulsion layers to prevent color turbidity. The silver halide emulsion layer for yellow image formation may be provided at any position with respect to each emulsion layer. For example, in one example, 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 are arranged in this order from the position closest to the support.

In another example, a cyan image-forming silver halide emulsion layer, a magenta image-forming silver halide emulsion layer, and a yellow image-forming silver halide emulsion layer are arranged in this order. In another example, the position can be arbitrarily selected, such as a cyan image forming silver halide emulsion layer, a yellow image forming silver halide emulsion layer, and a magenta image forming silver halide emulsion layer. it can. An intermediate layer for preventing color turbidity is provided between the emulsion layers.

The invention of claim 2 of the present invention relates to the silver halide and the number of moles of the yellow coupler contained in the silver halide emulsion layer for forming a yellow image of the silver halide photographic material used in the image forming method of the present invention. Molar ratio to the number of moles of
5.0 to 8.0.

When the number of moles per unit area of the yellow coupler contained in the yellow image layer is a and the number of moles of silver halide contained in the yellow image layer is b, the value of b / a is 5.0 to 8.0. If it exceeds 8.0, fog on a white background portion during storage increases and color turbidity increases. If it is less than 5.0, halftone dot reproducibility will deteriorate.

According to a third aspect of the present invention, there is provided a silver halide photographic light-sensitive material used in the image forming method of the present invention, wherein the compound represented by the above general formula (I) is added to a silver halide emulsion layer for yellow image formation. contains.

In the general formula (I), examples of the alkyl group represented by _RA include groups such as methyl, ethyl, i-propyl, t-butyl, dodecyl and the like. R _A
Examples of the cycloalkyl group represented by include cyclopropyl, cyclohexyl, and adamantyl. The aryl group represented by _RA has 6 to 6 carbon atoms.
And 14 aryl groups (each group such as phenyl, 1-naphthyl and 9-anthranyl). The aryl group can have a substituent. Examples of the substituent include a nitro group, a cyano group, an amino group (each group such as amino, ethylamino, dimethylamino, and anilino), an alkylthio group (such as a methylthio group), alkyl group having the same meaning as that represented by R _a, or the like substituent group as defined represented as substituents for the alkyl group represented by R _a and the like.

Examples of the heterocyclic group represented by R _A include morpholino and indoline-1-yl.

R _A is preferably an alkyl group,
A branched alkyl group is more preferred, and a t-butyl group is particularly preferred.

The non-diffusible alkyl group represented by R _B is preferably a linear or branched alkyl group having 8 to 21 carbon atoms, for example, 2-ethylhexyl, i-tridecyl,
Examples include groups such as hexadecyl and octadecyl.
Further, the alkyl group of the non-diffusible represented by R _B is, for example, such as represented by the following formula (D), may have a structure through an intermediate functional group.

In the general formula (D) -JLR ₂₁ , J is a linear or branched alkylene group having 1 to 20 carbon atoms, for example, methylene, 1,2-ethylene, 1,1-
Dimethylmethylene, represents 1-decyl methylene like, R ₂₁
Represents a linear or branched alkyl group having 1 to 20 carbon atoms, for example, a group having the same meaning as the alkyl group represented by R _A in the general formula (I).

L is -O-, -OCO-, -OSO_Two−,
-CO-, -COO-, -CON (R_{twenty two})-, -CON
(R_{twenty two}) SO_Two-, -N (R_{twenty two})-, -N (R_{twenty two}) CO
-, -N (R_{twenty two}) SO_Two-, -N (R_{twenty two}) CON
(R_{twenty three})-, -N (R_{twenty two}) COO-, -S (O)_n−,
-S (O)_nN (R_{twenty two})-Or -S (O)_nN (R_{twenty two}) C
Represents a bond such as O-. Where R_{twenty two}And R_{twenty three}Is hydrogen
Atom or R_AAlkyl group and aryl group represented by
Represents the same group as n represents the integer of 0-2. Also, R _{twenty one}
And J may be bonded to each other to form a cyclic structure.

The alkyl group represented by R _B may further have a substituent, and examples of the substituent include the same groups as the substituents of the alkyl group represented by R _A.

The non-diffusible aryl group represented by R _B includes, for example, the same groups as the aryl groups represented by R _A. The aryl group represented by the R _B may further have a substituent, the examples of the substituent, for example, substituents as defined for the aryl group represented by R _B. Of the substituents of the aryl group represented by these R _B, preferably a linear or branched alkyl group having a carbon 4-10.

R _B is preferably a diffusion-resistant alkyl group, particularly preferably a straight-chain alkyl group having 8 to 21 carbon atoms.

Examples of the halogen atom represented by R _C include a chlorine atom and a bromine atom. R _C is preferably a chlorine atom.

[0055] X represents an oxygen atom, -NH, and -NR _D. R _D
Represents an alkyl group, an alkylene group, an aryl group or a benzyl group, and the alkyl group includes methyl, ethyl, i-
Each group such as propyl, t-butyl, dodecyl and the like,
Examples of the alkylene group include groups such as ethylene and propylene. Examples of the aryl group include groups having the same meaning as the aryl group represented by _RA . X is preferably an oxygen atom.

Examples of the alkyl group represented by R _E and R _F include groups such as methyl, ethyl, propyl, i-propyl, butyl, t-butyl, hexyl and dodecyl.

Preferably, one of R _E and R _F is a hydrogen atom and the other is a linear or branched alkyl group,
More preferably, it is a straight-chain alkyl group having 3 or more carbon atoms.

Hereinafter, typical examples of the yellow coupler represented by formula (I) are shown, but the invention is not limited thereto.

[0059]

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[0060]

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In the present invention, the coating amount of the yellow color coupler contained in the light-sensitive material is preferably 0.55 to 2.00 g, more preferably 0.55 to 1.00 g, per m ² of the light-sensitive material. 80 g, most preferably 0.1 g.
55 to 1.60 g.

The above-mentioned yellow coloring coupler is preferably used as a dispersion obtained by emulsifying and dispersing a mixture in which at least one polymer compound soluble in an organic solvent is present.

The invention of claim 4 of the present invention comprises the compound represented by formula (AS) between the silver halide emulsion layer for forming a yellow image of the present invention and an adjacent silver halide emulsion layer. It has an intermediate layer.

In the general formula (AS), examples of the alkyl group having 1 to 5 carbon atoms represented by R ₁ and R ₂ include a methyl group, an ethyl group, an n-propyl group, an i-propyl group, and an n- Butyl group, s-butyl group, n-pentyl group,
And a neopentyl group. n represents an integer of 1 to 20, and preferably an integer of 2 to 15. k represents 1 or 2. A is (C = O) -XR ₃ (where X is-
O- or -N (R ₄₎ - represents, R ₃ represents a hydrogen atom, an alkyl group, alkenyl group, cycloalkyl group or aryl group, R ₄ represents a hydrogen atom, an alkyl group or an aryl group. ), -OY (where Y is R ₃ or-(C
= O) represents -R _3, R ₃ is as defined above. ), -N
(R ₄ ) (R ₅ ) (where R ₄ is as defined above, and R ₅ is a hydrogen atom, an alkyl group, an aryl group or — (C ＝ O) —R
Represents ₃ and R ₃ is as defined above. ), -P (= O) (O
R ₃ ) (O) _l- (R ₆ ) (where l represents 0 or 1, R ₃ has the same meaning as described above, and R ₆ represents a hydrogen atom, an alkyl group, a cycloalkyl group, an alkenyl group or an aryl group. Or a cyano group. The B alkyl group, alkenyl group, cycloalkyl group, aryl group, heterocyclic group, or _{-C (R 1) (R 2} ) -C n H 2n + 1- k - (A) a group represented by _k (where Wherein R ₁ , R ₂ , n, k and A have the same meanings as described above), but an alkyl group represented by R ₃ , an alkenyl group, a cycloalkyl group, an aryl group, and an alkyl represented by R _4. Group, aryl group, alkyl group represented by R ₅ , aryl group, alkyl group represented by R ₆ , cycloalkyl group, alkenyl group, aryl group, and further, alkyl group, alkenyl group, cycloalkyl represented by B Group,
The aryl group and the heterocyclic group each include those having a substituent.Examples of the substituent of the alkyl group include a halogen atom, a cycloalkyl group, an alkenyl group, an aryl group, an alkoxy group, an aryloxy group, an acyl group, Examples of the substituent of the alkenyl group, cycloalkyl group, aryl group, and heterocyclic group include, for example, a halogen atom, an alkyl group, a cycloalkyl group, an alkenyl group, an aryl group, and an alkoxy group. , An aryloxy group, an acyl group, a heterocyclic group, a cyano group and the like.

The alkyl group represented by R ₃ , R ₄ , R ₅ , R ₆ and B includes, for example, methyl group, ethyl group, n-
Propyl, n-butyl, s-butyl, n-hexyl, 2-ethyl-hexyl, n-dodecyl, n-
Examples of the alkenyl group represented by R ₃ , R ₆ and B include an allyl group and the like, and examples of the cycloalkyl group represented by R ₃ , R ₆ and B include: And the aryl group represented by R ₃ , R ₄ , R ₅ , R ₆ and B includes, for example, a phenyl group and a naphthyl group.

[0066]

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[0067]

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[0068]

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The compounds represented by the above general formula (AS-1) basically include the compounds described in JP-A-58-24141, and reference can be made to the synthesis methods described therein.

In the invention of claim 5 of the present invention, the silver halide light-sensitive material contains a hardener represented by the formula (HA).

The compound represented by formula (HA) of the present invention is known as a hardener for gelatin. Hereinafter, this compound will be described.

In the general formula (HA), R ₁ is a divalent linking group, and represents an alkylene group or an alkylene group substituted with a halogen atom, a hydroxyl group, a hydroxyalkyl group, an amino group or the like as a substituent. Further, the linking group may have an amide linking moiety, an ether linking moiety or a thioether linking moiety.

Specific examples of the hardening agent represented by the formula (HA) are shown below, but the invention is not limited thereto.

HA-1: CH ₂ ＣＨCHSO ₂ CH ₂ SO ₂ C
H = CH ₂ HA-2: CH ₂ ＣＨCHSO ₂ (CH ₂ ) ₂ SO ₂ CH ＝ C
H ₂ HA-3: CH ₂ ＣＨCHSO ₂ (CH ₂ ) ₄ SO ₂ CH ＝ C
_{H 2 HA-4: CH 2} = CHSO 2 CH 2 OCH 2 SO 2 CH =
_{CH 2 HA-5: CH 2} = CHSO 2 (CH 2) 2 O (CH 2) 2 S
_{O 2 CH = CH 2 HA-} 6: CH 2 = CHSO 2 CH 2 CH (OH) CH 2 S
_{O 2 CH = CH 2 HA-} 7: CH 2 = CHSO 2 CH 2 CONH (CH 2) 2
_{NHCOCH 2 SO 2 CH = CH 2} HA-8: CH 2 = CHSO 2 CH 2 CONH (CH 2) 3
NHCOCH ₂ SO ₂ CH ＝ CH ₂ The silver halide emulsion used in the present invention may be a surface latent image type silver halide emulsion in which a latent image is formed on the surface by image exposure, or the surface of the grain may be previously fogged. Using an internal latent image type silver halide emulsion that has not been subjected to image fogging (nucleation) after image exposure, and then performing surface development, or by performing surface development while performing fog processing after image exposure An internal latent image type silver halide emulsion capable of directly obtaining a positive image may be used. The internal latent image type silver halide emulsion is an emulsion containing silver halide grains having a photosensitive nucleus mainly inside silver halide crystal grains and forming a latent image inside the grains upon exposure. Say.

The silver halide emulsion used in the present invention may have any conventionally known halogen composition. For example, silver chloride, silver bromide, silver chlorobromide, silver chloroiodide, silver iodobromide, silver chloroiodobromide and the like are included.

Among them, silver chlorobromide, silver chloroiodide, silver chloroiodobromide containing silver chloride, and silver halide emulsion having a portion containing silver bromide at a high level are preferably used. 0.05 to 0.5 mol% of silver iodide near the surface
The contained silver chloroiodide is also preferably used.

In the silver halide emulsion having a portion containing a high concentration of silver bromide, a portion containing a high concentration of silver bromide is
A so-called core-shell emulsion may be used, or a so-called epitaxy-bonded region in which a complete layer is not formed and only a region having a partially different composition may exist. It is particularly preferable that the portion where silver bromide exists at a high concentration is formed at the top of crystal grains on the surface of silver halide grains. Further, the composition may change continuously or discontinuously.

One preferred form of the silver halide emulsion used in the present invention is an internal latent image type silver halide emulsion which has not been previously fogged. The internal latent image type silver halide grains have a large photosensitive nucleus. A silver halide grain having a portion inside the grain, wherein a latent image is mainly formed inside the grain. The composition of the silver halide grains includes any silver halide, for example, silver bromide, silver chloride, silver chlorobromide, silver chloroiodide, silver iodobromide, silver chloroiodobromide and the like.

Particularly preferably, the coated silver amount is about 1 to 3.5.
A portion of the sample coated on the transparent support to a range of g / m ² is exposed to the light intensity scale for a defined period of time from about 0.1 seconds to about 1 second, and When developed at 20 ° C. for 4 minutes using the following surface developer A, which develops only the surface image of grains containing no silver halide solvent,
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) 90.0 g Hydroquinone 8.0 g Sodium carbonate (monohydrate) 52.5 g Potassium bromide 5.0 g Potassium iodide 0.5 g Add water 1000 ml Addition of water used in the present invention Latent image silver halide emulsions include those prepared by various methods.

For example, a conversion type silver halide emulsion described in US Pat. No. 2,592,250 or described in US Pat. Nos. 3,206,316, 3,317,322 and 3,367,778. Silver halide emulsion having internally chemically sensitized silver halide grains or silver halide grains containing polyvalent metal ions described in U.S. Pat. No. 3,271,157, or U.S. Pat. No. 3,761,276 discloses a silver halide emulsion comprising a silver halide grain containing a dopant which is weakly chemically sensitized on the grain surface.
And silver halide emulsions having grains having a laminated structure described in JP-A Nos. 24, 50-38525 and 53-2408, and others described in JP-A Nos. 52-156614 and 55-127549. Silver halide emulsions.

Such an internal latent image type silver halide emulsion which has not been fogged in advance gives a positive image without performing reversal processing by performing surface fogging processing. Alternatively, the treatment may be performed chemically using a fogging agent, a strong developing solution may be used, and heat treatment may be performed.

The entire surface exposure is performed by immersing or moistening the image-exposed photosensitive material in a developing solution or other aqueous solution, and then performing uniform exposure over the entire surface. As the light source used here, any light source may be used as long as it has light in the photosensitive wavelength region of the silver halide photosensitive material, and high-intensity light such as flash light can be applied for a short time. , Weak light may be applied for a long time. or,
The overall exposure time can be varied over a wide range depending on the silver halide photosensitive material, development processing conditions, type of light source used, and the like so that the best positive image is finally obtained.
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.

The shape of the silver halide grains used in the present invention may be cubic, octahedral, tetradecahedral 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.

The monodisperse silver halide emulsion has an average particle size r
The silver halide contained within a grain size range of ± 20% around m is 60% or more of the total silver halide particle mass, preferably 70% or more, more preferably 80% or more. % Or more. Here, the average particle size rm is:
The product ni × of the frequency ni of particles having a particle size ri and ri ³
The particle size ri when ri ³ is the maximum is defined (three significant figures, the smallest figure is rounded off to the nearest 4).

The particle size referred to here is the diameter in the case of spherical silver halide grains, or the diameter when the projected image is converted into a circular image of the same area in the case of grains having a shape other than spherical. It is. The particle size is, for example, 10,000 times to 5 times with an electron microscope.
It can be obtained by taking an image at a magnification of 10,000 times and actually measuring the particle diameter or the area at the time of projection on the print (the number of measured particles is indiscriminately 1000 or more).

Particularly preferred highly monodisperse emulsions have a distribution width of not more than 20% as defined by (standard deviation of particle size / average particle size) × 100 = width of distribution (%). preferable. 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 determined from a wide range in consideration of the required properties, particularly various characteristics such as sensitivity, sensitivity balance, sharpness of color separation, and granularity. be able to.

In one preferred embodiment, the silver halide has a particle size of 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 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 preferable 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 .

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.

[0094] 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.

Examples of the water-soluble dyes preferably used in the present invention include oxonol, cyanine, merocyanine, azo, anthraquinone, arylidene and the like. Among them, high resolution in a developing bath and silver halide emulsion Particularly preferable dyes are oxonol dyes and merocyanine dyes from the viewpoint of non-sensitization to the dye.

As oxonol dyes, 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.

Representative examples of oxonol dyes and merocyanine dyes include water-soluble yellow dyes AIY-1 to AIY-14 described in JP-A-9-5954, and water-soluble magenta dyes AIM-1 to AIM-14. And water-soluble cyan dyes AIC-1 to AIC-14.

Typical examples of water-soluble dyes other than oxonol dyes and merocyanine dyes include the water-soluble yellow dye AI described in JP-A-9-5954.
Y-15 to AIY-18, AIM-15 to AIM-1
8, 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-4-33037.
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 measured at the laser wavelength at which the photosensitive material is exposed becomes 0.8 or more.
The water-soluble dyes can be used alone or in combination of two or more.

In the present invention, an antihalation layer may be provided on the lowermost layer or another layer.

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

The above colloidal silver, eg, gray colloidal silver, is reduced by keeping silver nitrate alkaline in gelatin in the presence of reducing agents such as hydroquinone, phenidone, ascorbic acid, pyrogallol or dextrin, followed by neutralization. After cooling and setting gelatin, it is obtained by 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 weight of the colloidal silver is such that the reflection density of a raw sample before development processing, measured at least at one wavelength within the exposure region for a silver halide emulsion having the spectral sensitivity region with the longest wavelength, is 0.8 or more. It can be added in a selected amount.

The color light-sensitive material of the present invention has at least one of a carboxy 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. Specific examples of the dye are described in JP-A-9-5954.
-1 to 8-7.

The dye having at least one of a carboxy group, a sulfonamide group and a sulfamoyl group is a compound having a hydrophilic group which is substantially water-insoluble (in water having a pH of 7 or less) and dissociates at a pH of 9 or more, Solid fine particle dispersion obtained using a method of forming fine particles with a ball mill or a sand mill or a method of dissolving in an organic solvent and dispersing in a gelatin solution (in the form of group particles having microscopic dimensions, the average particle diameter is preferably Is 10 μm or less, more preferably 1 μm
In the state described in (1) or (2) below, it can be contained in any photosensitive emulsion layer or non-photosensitive hydrophilic colloid layer in the photographic component layer by being present in gelatin or a polymer binder.

The solid fine particle dispersion of a dye having at least one of a carboxy group, a sulfonamide group, and a sulfamoyl group is water-insoluble and stably present in a color light-sensitive material. (preferably at pH 9 or more), the hydrophilic group in the dye compound is dissociated to become water-soluble, or the color is decolorized, so that most of the color photographic material is lost.

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

The content of the dye having at least one of a carboxy group, a sulfonamide group and a sulfamoyl group is as follows:
The amount can be selected and added so that the reflection density of the raw sample before development measured at at least one wavelength within the exposure region for the cyan image-forming silver halide is 0.8 or more. Specifically, generally 0.001 to 0.5 g / m ²
It is preferably used so that

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 halftone dot image portion composed of YMC halftone dots is within 5%. Since the color tone of the black dot image is close to the color tone of the black dot image of the printed matter, it is preferable that the color tone of the black dot image greatly deviates from printing if it exceeds 5%.

Here, the dot gain means the halftone dot area ratio (%) measured by decomposing the reproduced black dot image into BGR when the halftone 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 5%. 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 with a diffusion-resistant compound is provided on the side closer to the support than the silver halide emulsion layer closest to the support among the silver halide emulsion layers. Is preferred. The diffusion-resistant compound includes a solid disperse dye, colloidal silver, and the like. 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.

As the white pigment preferably used in the present invention, for example, rutile-type titanium dioxide, anatase-type titanium dioxide, barium sulfate, barium stearate, silica, alumina, zirconium oxide, kaolin and the like can be used as inorganic materials. it can. One of the white pigments having different spectral reflection characteristics is preferably titanium dioxide for various reasons. As the other white pigment, titanium dioxide having a different average primary particle size may be used. Rutile titanium dioxide and anatase titanium dioxide may be used in combination. It is also preferable to use solid fine particles having a fluorescent whitening effect.

The white pigment is added in a dispersed state to the layer of the present invention constituting the silver halide photographic light-sensitive material.

The white pigment is dispersed in water or an aqueous solution of a hydrophilic colloid such as gelatin using a high-speed stirring type dispersing group, for example, by pulverizing and dispersing it in water or an aqueous solution of a hydrophilic colloid such as gelatin using a ball mill or sand mill. Method, a method of dispersing in water or an aqueous solution of hydrophilic colloid such as gelatin using a disperser having a high shearing force such as a Manton-Gauling disperser, a method of dispersing using an ultrasonic disperser, and the like. be able to.

When dispersing the white pigment, a surfactant can be used for the purpose of increasing the dispersibility and improving the dispersion stability. Preferred surfactants include anionic surfactants, nonionic surfactants, and betaine amphoteric surfactants.

The spectral reflectance of the white pigment is preferably controlled by controlling the average particle size of the dispersion.

The white pigment may be added to any of the layers constituting the silver halide photographic material, but is preferably added to the non-photosensitive hydrophilic colloid layer, and the silver halide emulsion closest to the support is preferably used. More preferably, it is added to at least one non-photosensitive hydrocolloid layer provided between the layer and the support. The amount of the white pigment used in the present invention is 10 to 2,000 in the silver halide photographic light-sensitive material of the present invention.
mg / m ^2.
It is preferable to add 000 mg / m ² .

As the water-soluble binder used in the non-photosensitive hydrocolloid layer having a white pigment, gelatin is mainly used. If necessary, gelatin derivatives, gelatin and other polymers, graft polymers, other than gelatin may be used. Hydrophilic colloids such as proteins, sugar derivatives, cellulose derivatives, and synthetic hydrophilic polymer substances such as homopolymers and copolymers can also be used in combination with gelatin.

The non-photosensitive hydrocolloid layer containing a white pigment preferably accounts for 5 to 30% by mass of the non-photosensitive hydrocolloid layer.

To the non-photosensitive hydrocolloid layer, colorants such as yellow, gray, blue and black colloidal silver, inorganic colored pigments, organic colored pigments and dyes can be added.

Various types of colloidal silver can be used, but black colloidal silver is preferably used in order to prevent irregular reflection on the surface of the support.

[0123] coated with the amount of black colloidal silver, preferably in the range of 0.01 to 1.0 g / m ^2, further preferably in the range of 0.03 to 0.8 g / m ^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. The surface of the support is continuously measured for irregularities, and the measured signal is subjected to frequency analysis. It is preferable that the integrated value (PY value) of the power spectrum in the frequency range of 1 mm to 12.5 mm on the surface of the support is 2.9 μm or less.

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: V
C-2403) to obtain a frequency analysis.

The substrate (base paper) of the support can be selected from raw materials generally used for photographic printing paper. Examples include natural pulp, synthetic pulp, a mixture of natural pulp and synthetic pulp, and various papermaking raw materials. Generally,
Natural pulp mainly composed of softwood pulp, hardwood pulp, or mixed pulp of softwood pulp and hardwood pulp 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 incorporated in the support. A material in which a surface strengthening agent, an antistatic agent, or the like is appropriately applied to the surface may be used.

The reflection support is usually 50 g / m ² to 30 g / m ^2.
A smooth surface having a mass of 0 g / m ² is used, and the resin for laminating both surfaces is ethylene,
It can be selected from α-olefins, for example, homopolymers such as polypropylene, at least two kinds of copolymers of the above-mentioned olefins, and mixtures of at least two kinds 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 μm to 50 μm.
m, more preferably 25 μm to 35 μm.

As the polyolefin used for laminating the back side of the reflection support (the side opposite to the side on which the emulsion layer is provided), a mixture of low-density polyethylene and high-density polyethylene is itself melt-laminated. This layer is generally matted in many cases.

In forming the laminate on the front and back of the support,
In general, in order to improve the flatness of the developed photographic paper in a normal 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 laminate on both the front and back surfaces of the reflective support can be formed on the support of the polyolefin resin composition by a melt extrusion coating method. 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. Further, it is preferable to provide a back coat layer on the surface of the surface laminate layer for improving the printing and writing properties and the antistatic property.

The polyolefin resin used for laminating the surface of the support (surface on which the emulsion layer is provided) is preferably from 13% by mass to 20% by mass, more preferably from 15% by mass to
20% by mass of a white pigment is mixed and dispersed. As the white pigment, an inorganic and / or organic white pigment can be used, preferably an inorganic white pigment, and specifically,
Sulfates of alkaline earth metals such as barium sulfate, carbonates of alkaline earth metals such as calcium carbonate, finely divided silicic acid, silicas of synthetic silicates, 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 or an organic pigment or a fluorescent whitening agent for improving whiteness.

The shape of the surface of the reflective support may be smooth or may have an appropriate surface roughness, but is preferably a shape having gloss close to that of a printed matter.
For example, it is preferable to use a white support having an average surface roughness specified in JIS-B-0601-1976 of 0.30 μm to 3.0 μm. In order to adjust the surface roughness, a matting agent can be contained in the constituent layer on the image forming side of the photosensitive material. The layer to which the matting agent is added includes a silver halide emulsion layer, a protective layer, 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.

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 a matting agent to the protective layer. Matting agents and their use are described in JP-A-6-95283, page 4, left column, lines 42-4.
It is preferable to use the technique described in the right column of the page, 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, may be used.

The thickness of the reflective support is not particularly limited.
Those having a thickness of 0 μm to 160 μm are preferably used. Particularly preferably, it is 90 μm to 130 μm.

Gelatin is preferably used as a binder in the light-sensitive material. In particular, gelatin extract was subjected to hydrogen peroxide treatment to remove colored components of gelatin, extracted from the raw material ossein subjected to hydrogen peroxide treatment, or manufactured from uncolored raw bone. Gelatin whose transmittance is improved by using ossein 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 is preferably 70% or more when a 10% solution is prepared and measured at 420 nm with a spectrophotometer.

Jelly strength of gelatin (based on Paggy method)
Is preferably at least 250, particularly preferably 27
0 or more.

The ratio of gelatin to the total binder applied is not particularly limited, but is preferably used in a large ratio, specifically, preferably in a ratio of 20 to 100%.

The total amount of gelatin contained on the image forming side of the light-sensitive material of the present invention is preferably less than 11 g / m ² . The lower limit is not particularly limited, but is generally preferably 3.0 g / m ² or more from the viewpoint of physical properties or photographic performance. The amount of gelatin can be determined by the method of measuring water described in the Paggy Method and converting it to the mass of gelatin containing 11% 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. In order to prevent the growth of fungi and bacteria which adversely affect photographic performance and image storability, it is preferable to add an antiseptic and an antifungal agent as described in JP-A-3-157646 to the colloid layer.

It is preferable to include a fluorescent whitening agent in the light-sensitive material and / or the processing solution of the present invention in order to improve whiteness.

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 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 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 hydrophilic binder on the emulsion layer side of the reflective support having a total amount 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 that can be used in the present invention include crystalline or non-crystalline silica, titanium dioxide, magnesium oxide, calcium carbonate, barium sulfate, strontium barium sulfate, alumina magnesium silicate, silver halide, and silicon dioxide. , Acrylic acid-ethyl acrylate copolymer, acrylic acid-methyl methacrylate copolymer, itaconic acid-styrene copolymer, maleic acid-methyl methacrylate copolymer, maleic acid-
Examples include styrene copolymer, acrylic acid-phenyl acrylate copolymer, polymethyl methacrylate, acrylic acid-methacrylic acid-ethyl methacrylate copolymer, polystyrene, starch, and cellulose acetate propionate. Other US Patents 1,221,9
No. 80, No. 2,992, 101, etc., and these can be used alone or in combination of two or more. Colloidal silica may be used together with the matting agent.

The average 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.

[0157] 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 from 3 to 50% by mass, more preferably from 5 to 20% by mass, based on the hydrophilic binder.

The support used in the light-sensitive material of the present invention comprises
It is preferable that the Taber stiffness be 0.8 to 4.0. The Taber stiffness is a stiffness measuring instrument V-5 model 150
B Taber V-5 Stiffness tes
ter (TABER INSTRUMENT -A T
ELEDYNE COMPANY). The support generally has different stiffness values in the vertical and horizontal directions, but it is sufficient that at least one of the stiffnesses falls within this range.

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 on 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 light-sensitive material of the present invention is preferably 530 to 560 nm, and the λL0.2 is 580 to 63.
Preferably it is 5 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 photosensitive material, the color photosensitive 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 negative type emulsion is used as a magenta coupler or a light-sensitive material, an ND filter is formed so that when a magenta image is formed by applying green light through an ND filter and developing to form a magenta image, the same maximum absorbance as the above positive is obtained. Adjust the concentration of. 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. Specific examples of the preferred yellow coupler are the yellow couplers represented by the general formula (I) of the present invention.

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 examples. 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 used in an amount of usually 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 acylacetoanilide-based couplers other than the general formula (I) can be preferably used. Specific examples of the yellow coupler include, for example, Y-I- described in JP-A-3-241345, pp. 5-9.
1-Y-I-55 or JP-A-3-2
Compounds represented by Y-1 to Y-30 described in JP09466, pages 11 to 14 can also be preferably used. Further, Japanese Unexamined Patent Publication No.
Couplers represented by the general formula [YI] described on page 21 of -95283 can also be mentioned.

In the present invention, 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.

An anti-fading agent can be used in combination with each of the magenta, cyan and yellow couplers in order 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 type 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 for dissolving and dispersing the coupler and the like include phthalic acid esters such as p- (t) butylphenol, dioctyl phthalate, di-i-decyl phthalate and dibutyl phthalate; Phosphate esters such as tricresyl phosphate and trioctyl phosphate, and phosphine oxides such as trioctyl phosphine oxide are preferably used. Further, the dielectric constant of the high boiling organic solvent is 3.5 to 3.5.
It is preferably 7.0. Of course, two or more high-boiling organic solvents can be used in combination.

Particularly preferred compounds as high boiling organic solvents are those represented by the general formula [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.

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

In the light-sensitive material, a compound which reacts with an oxidized developing agent is added to a layer between the light-sensitive layers to prevent color turbidity, or added to a silver halide emulsion layer to prevent fog or the like. Is preferably improved. As the compound for this, a hydroquinone derivative is preferred, and more preferably
Dialkylhydroquinones such as 5-di-t-octylhydroquinone. Particularly preferred compounds are those represented by the general formula II described in JP-A-4-133056, 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 or to improve the light fastness of the dye image. Preferable examples of the ultraviolet absorber include benzotriazoles. Particularly preferable compounds are those represented by the general formula III described in JP-A-1-250944.
A compound represented by general formula III described in JP-A-64-66646;
No. 240, UV-1L to UV-27L;
Compounds represented by the general formula I described in JP-A-1633 and compounds represented by the general formulas (I) and (II) described in JP-A-5-165144.

It is preferable that the light-sensitive material contains an oil-soluble dye or pigment because the whiteness is improved. Representative specific examples of the oil-soluble dyes include compounds 1 to 27 described in pages (8) to (9) of JP-A-2-842.

It is preferable to include a fluorescent whitening agent in the light-sensitive material and / or the processing solution in order to improve the whiteness.

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

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 light-sensitive material.

Known photographic additives can be used in the photographic material. Examples of the known photographic additives include compounds described in RD17643, page 23, section III to page 29, section XXI and RD18716, pages 648 to 651.

In order to form an image using the photosensitive material of the present invention, it is preferable to use an automatic developing machine of a light source section scanning exposure system. Specific examples of particularly preferable apparatuses and systems for image formation include Digital manufactured by Konica Corporation.
Konsensus and the like.

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

In the present invention, it is preferable that the silver halide photographic light-sensitive material is previously loaded in a cartridge which can be handled in a bright room in the form of a roll. 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 photosensitive 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.

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, color-separated yellow
Image information, magenta image information, cyan image information and black
Halogenation based on halftone image information consisting of image information
Exposure to silver color photographic light-sensitive material to provide color proof
In the producing step, at least one of the halftone dot image information
2.54 cm when the halftone dot area ratio is 40% ^Two
The number of halftone dots per area is 200 × 10^ThreeNet as above
Use a point image that has been converted.

In the present invention, the number of halftone dots can be measured by counting halftone images taken by an optical microscope or the like.

The dot image used in the present invention is particularly effective when it is a dot image for high definition printing by the AM screening method. Further, the present invention is most effective when a halftone dot formed by the so-called FM screening method, which is frequency-modulated, is a layer.

In the present invention, it is preferable that the halftone image information is a halftone image recorded on a film, and that the exposure is performed by bringing the film into close contact with the photosensitive material and scanning a light source. For the adhesion, a vacuum adhesion method can be preferably used.

In the present invention, it is preferable that the exposure is performed via an optical means for improving the parallelism of the light from the light source. As a specific means, a means for absorbing components other than parallel light on a wall surface by passing through a linear tubular optical path such as an optical lens, a reflecting mirror, or a honeycomb structure may be used. In addition, parallelism can be improved by an aggregate of optical fibers.

Exposure is preferably performed by laser scanning based on the dot image information.

[0199]

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

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 = 95: 5) at the same time by the control double jet method.
A 30 μm cubic silver chlorobromide core emulsion was obtained. At that time, the pH and pAg were controlled so that a cube was obtained as the particle shape.

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. Then, a shell was formed until the average particle size became 0.42 μm.
At that time, the pH and pAg were controlled so that a cube was obtained as the particle shape.

After washing with water to remove water-soluble salts, gelatin was added to obtain an emulsion EM-P1. The width of the distribution of the 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 = 95: 5 by molar ratio). ) Was added simultaneously by the control double jet method to obtain a cubic silver chlorobromide core emulsion having a particle size of 0.18 μm. At this time, p is set so that a cube is obtained as the particle shape.
H and pAg were controlled.

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

After washing with water to remove water-soluble salts, gelatin was added to obtain an emulsion EM-P2. The width of the distribution of the emulsion EM-P2 was 8%.

(Preparation of Blue-Sensitive Silver Halide Emulsion) Emulsion E
After sensitizing dye BS-1 was added to MP-P1 for optimal color sensitization, 100 mg per mol of silver of stabilizer ST-1 was added to prepare blue-sensitive emulsion EM-B1.

(Preparation of Green-Sensitive Silver Halide Emulsion) Emulsion E
Green-sensitive emulsion EM was prepared in the same manner as blue-sensitive emulsion EM-B1, except that sensitizing dye GS-1 was added to M-P1 to optimize the color sensitization.
-G1 was produced.

(Preparation of Red-Sensitive Silver Halide Emulsion) Emulsion E
A red-sensitive emulsion EM-R1 was prepared in the same manner as the blue-sensitive emulsion EM-B1, except that sensitizing dyes RS-1 and RS-2 were added to MP-P2 to optimize the color sensitization.

(Preparation of Infrared-sensitive Silver Halide Emulsion) A sensitizing dye IRS-1 was added to the emulsion EM-P2 for optimal color sensitization, and a blue-sensitive emulsion EM-B1 was used except that AF-1 was added. In the same manner as in the above, an infrared-sensitive emulsion EM-IR1 was prepared.

<Preparation of Multilayer Color Photosensitive Material> A high density polyethylene was laminated on one side and a molten polyethylene containing anatase type titanium oxide dispersed at a content of 15% by mass was laminated on the other side. Is 115g
EM-B1, EM-G on paper pulp reflective support
1. Using the emulsions of EM-R1 and EM-IR1, each layer having the following composition was coated on the side of the polyethylene layer containing titanium oxide, and on the back side, 7.2 g / m ² of gelatin and silica matting agent the 0.65g / m ² to prepare a photosensitive material-11 was coated. In addition, H-1 and H-2 were added as hardening agents. Surfactant SU is used as a coating aid and a dispersing aid.
-1, SU-2 and SU-3 were added.

SU-1: sodium sulfosuccinate di (2-ethylhexyl) ester SU-2: sulfosuccinate di (2,2,3,3,4,4,
5,5-octafluoropentyl) ester sodium SU-3: sodium tri-i-propylnaphthalenesulfonate H-1: 2,4-dichloro-6-hydroxy-s-triazine sodium H-2: tetrakis (vinyl) (Sulfonylmethyl) methane The coating amount of the compound in each layer was represented by g / m ² .

Twelfth layer (ultraviolet absorbing layer) Coating amount (g / m ² ) Gelatin 1.20 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 Eleventh layer (blue-sensitive layer) Gelatin 0.92 Blue-sensitive emulsion Silver chlorobromide emulsion (EM-B1) 0.33 Magenta coupler (M-1) 0.20 Yellow coupler (Y-3) 0.05 Inhibitor T-1 0.002 Inhibitor (ST-2, ST-3, ST-4) (Molar ratio 1: 1: 1) 0.0004 Stain inhibitor (HQ -1) 0.03 High boiling point solvent (SO-1) 0.31 10th layer (intermediate layer) Gelatin 0.40 Stain inhibitor (HQ-2) 0.02 Stain inhibitor (HQ-3) 0.01 High boiling point solvent (SO-2) 0.005 Ninth layer (a Yellow colloid silver layer) Gelatin 0.08 Yellow colloid silver layer 0.09 Stain inhibitor (HQ-2) 0.02 Stain inhibitor (HQ-3) 0.005 Polyvinylpyrrolidone 0.004 8th layer (intermediate layer) Gelatin 0.04 Stain inhibitor (HQ-2) 0.02 Stain inhibitor (HQ-3) 0.01 High boiling solvent (SO-2) 0.005 7th layer (green sensitive layer) Gelatin 1.20 green Sensitive silver chlorobromide emulsion (EM-G1) 0.38 Yellow coupler (Y-1) 0.51 Magenta coupler (M-1) 0.11 Stain inhibitor (HQ-1) 0.06 High boiling organic solvent ( SO-3) 0.31 inhibitor T-1 0.004 inhibitor (ST-2, ST-3, ST-4) (molar ratio 1: 1: 1) 0.0002 6th layer (intermediate layer) gelatin 0.50 Stain prevention (HQ-2) 0.04 Stain inhibitor (HQ-3) 0.02 High boiling solvent (SO-2) 0.01 Fifth layer (red-sensitive layer) Gelatin 1.75 Red-sensitive silver chlorobromide emulsion (EM-R1) 0.25 Green-sensitive silver chlorobromide emulsion (EM-G1) 0.24 Cyan coupler (C-1) 0.35 Stain inhibitor (HQ-1) 0.035 High boiling point solvent (SO- 4) 0.33 High boiling solvent (SO-5) 0.33 Inhibitor T-1 0.0015 Inhibitor (ST-2, ST-3, ST-4) (molar ratio 1: 1: 1) 4th layer (intermediate layer) Gelatin 0.70 Stain inhibitor (HQ-4) 0.06 High boiling solvent (SO-2) 0.01 Anti-irradiation dye (AI-1) 0.03 Anti-irradiation dye (AI-2) 0.03 Third layer (infrared-sensitive layer) Gelatin 1.1 0 Infrared photosensitive emulsion (EM-IR1) 0.38 Yellow coupler (Y-1) 0.55 Yellow coupler (Y-2) 0.10 Stain inhibitor (HQ-1) 0.05 High boiling organic solvent ( SO-1) 0.43 Inhibitor T-1 0.006 Inhibitor (ST-2, ST-3, ST-4) 0.0004 (Molar ratio 1: 1: 1) Second layer (intermediate layer) Gelatin 0.40 Anti-stain agent (HQ-2) 0.01 Anti-stain agent (HQ-3) 0.005 High boiling point solvent (SO-2) 0.003 Anti-irradiation dye (AI-4) 0.05 Increase in fluorescence Whitening agent solid particles (F-10) 1.40 First layer (antihalation layer) Gelatin 0.60 Latex (LA-1) 0.12 Black colloidal silver 0.03 Polyvinylpyrrolidone 0.10 Titanium oxide 1.00 Support Body: Polyet Tylene laminated paper (containing a trace amount of colorant) The amount of silver halide emulsion added was expressed in terms of silver.

The structure of each additive used in the above examples is shown below. SO-1: tri (n-octyl) phosphine oxide SO-2: di (i-decyl) phthalate SO-3: p- (t) butylphenol SO-4: tricresyl phosphate HQ-1: 2,5-di (T-butyl) hydroquinone HQ-2: 2,5-bis [(1,1-dimethyl-4-hexyloxycarbonyl) butyl] hydroquinone HQ-3: 2,5-di-sec-dodecylhydroquinone and 2,5 Mixture of di-sec-tetradecylhydroquinone and 2-sec-dodecyl-5-sec-tetradecylhydroquinone in a mass ratio of 1: 1: 2 HQ-4: 2,5-di (t-octyl) hydroquinone ST-2 : 1- (3-acetamidophenyl) -5-mercaptotetrazole ST-3: N-benzyladenine ST-4: 2-mercap Tobenzothiazole LA-1: styrene / butyl methacrylate / 2-sulfomethyl methacrylate / sodium copolymer ST-1: 4-hydroxy-6-methyl-1,3,3
a, 7-Tetrazaindene

[0214]

Embedded image

[0215]

Embedded image

[0216]

Embedded image

[0219]

Embedded image

[0218]

Embedded image

[0219]

Embedded image

A light-sensitive material was prepared in the same manner as the light-sensitive material-11 thus obtained, but only the amount of gelatin in the fourth intermediate layer was changed as follows to prepare light-sensitive materials 12 to 15. did.

[0221]

[Table 1]

The spectral sensitivity peaks of the emulsion layers of the light-sensitive materials thus obtained were 460 nm for the blue-sensitive emulsion, 548 nm for the green-sensitive emulsion, 670 nm for the red-sensitive emulsion, and 785 nm for the infrared-sensitive emulsion. Was.

Each of the above photosensitive materials was cut into a width of 570 mm and a length of 55 m, wound around a core so that the emulsion surface was exposed, processed into a roll, and housed in a bright room type cartridge.

A part of each of the obtained photosensitive materials was left as a cartridge in an environment of 40 ° C. and 55% for 3 weeks, and another part of each photosensitive material was stored in a refrigerator at 5 ° C.

Using the obtained light-sensitive material, an image was obtained as follows. Of the halftone dot originals, the yellow plate was brought into close contact with the light-sensitive material and exposed under the following exposure conditions -Y1. Next, the magenta plate was brought into close contact with the light-sensitive material, and exposure conditions -M shown below were used.
1 was exposed. Next, the cyan plate was brought into close contact with the photosensitive material and exposed under the following exposure conditions -C1. The black plate was brought into close contact with the photosensitive material and exposed under the following exposure conditions -K1.

(Exposure condition-Y1) An infrared fluorescent light source is used for each photosensitive material to transmit a filter that transmits infrared light (LEE filters, 026 and 363 are used in a superposed manner).
The exposure was performed by adjusting the scanning speed of the light source so that the halftone dot area of the 50% halftone original portion of the developed yellow was 62%.

(Exposure condition-M1) A blue filter (Wratten N) was applied to each photosensitive material using a white fluorescent light source.
o. 47B), slit exposure was performed by adjusting the scanning speed of the light source so that the halftone dot area of the 50% halftone original portion of magenta after development was 62%.

(Exposure Condition-C1) A red filter (Wratten N) was applied to each photosensitive material using a white fluorescent light source.
o. 26), exposure was performed by adjusting the scanning speed of the light source so that the halftone dot area of the 50% halftone original portion of the developed cyan became 62%.

(Exposure condition-K1) A green filter (Wratten N) was applied to each photosensitive material using a white fluorescent light source.
o. 58), exposure was performed by adjusting the scanning speed of the light source so that the halftone dot area of the 50% halftone original portion of the developed black was 62%.

The photosensitive material was fixed on an exposure table by a reduced pressure suction contact method, and the exposure was performed by bringing the original films into close contact with each other and scanning the light sources. The exposure time was adjusted between 0.2 and 10 seconds.

Each of the exposed photosensitive materials was processed in the following processing step-1 to obtain an image.

(Processing Step-1) Processing Step Temperature Time Immersion (developer) 37 ° C for 12 seconds Fog exposure-12 seconds Development 37 ° C for 95 seconds Bleaching and fixing 35 ° C for 45 seconds Stabilization processing 25-30 ° C for 90 seconds Drying 60-85 ° C 40 seconds (color developing solution composition) Benzyl alcohol 15.0 ml Ceric sulfate 0.015 g Ethylene glycol 8.0 ml Potassium sulfite 2.5 g Potassium bromide 0.6 g Sodium chloride 0.2 g Potassium carbonate 25.0 g T-1 0.1 g hydroxylamine sulfate 5.0 g pentasodium diethylenetriaminepentaacetate 2.0 g 4-amino-N-ethyl-N- (β-hydroxyethyl) aniline sulfate (A-2) 4.5 g Fluorescence enhancement Whitening agent (4,4'-diaminostilbene disulfonic acid derivative) 1.0 g Potassium hydroxide 2.0 g Ethylene glycol 15.0 ml Add water to make the total volume 1000 ml, and adjust to pH 10.15.

(Composition of bleach-fixing solution) Ferric ammonium diethylenetriaminepentaacetate 90.0 g Diethylenetriaminepentaacetic acid 3.0 g Ammonium thiosulfate (70% aqueous solution) 180.0 ml Ammonium sulfite (40% aqueous solution) 27.5 ml 3-mercapto-1 , 2,4-Triazole 0.15 g Adjust the pH to 7.1 with potassium carbonate or glacial acetic acid, and add water to make the total volume 1 liter.

(Composition of stabilizing solution) o-phenylphenol 0.3 g potassium sulfite (50% aqueous solution) 12.0 ml ethylene glycol 10.0 g 1-hydroxyethylidene-1,1-diphosphonic acid 2.5 g bismuth chloride 0.2 g Zinc sulfate heptahydrate 0.7 g Ammonium hydroxide (28% aqueous solution) 2.0 g Polyvinylpyrrolidone (K-17) 0.2 g Fluorescent whitening agent (4,4'-diaminostilbene disulfonic acid derivative) 2.0 g Water In addition, bring the total volume to 1 liter and adjust the pH to 7.5 with ammonium hydroxide or sulfuric acid.

Incidentally, the stabilization treatment was of a countercurrent type having a three-tank configuration. Processing was performed in processing steps 2 to 7 in the same manner as in processing step 1, and images were obtained. However, the processing was performed in the same manner as in the processing step-1 except that the composition of the color developing solution was changed in the following from the processing step-2 to the processing step-7.

[0236]

[Table 2]

With respect to the obtained image, the color tone of 100% part of Y in the halftone chart was measured, and the color tone difference ΔE between the chilled storage photographic material of each photographic material and the 55% storage photographic material of 40 ° C. was obtained. It is shown below.

The color tone was measured using a color meter CM-20 manufactured by Minolta.
22 using CIE, L^*, A^*, B ^*Measure and save
Was evaluated as ΔE.

ΔE = (ΔL ^* 2 + Δb ^* 2 + Δa ^* 2) 1/2 Note that ΔL ^* , Δa ^* , and Δb ^* represent the differences between L ^* , a ^* , and b ^* , respectively, between storage in a refrigerator and standing at high temperature.

[0240]

[Table 3]

It can be seen that the smaller the value of ΔE, the smaller the difference in color tone between the chilled storage photographic material and the photographic material left at high temperature, which is better.

Example 2 Sensitive materials 21 to 21 in the same manner as in Sensitive material 11 of Example 1
24 were produced. In these light-sensitive materials, light-sensitive materials were prepared by changing the ratio of the amount of silver halide to the amount of coupler in the third infrared-sensitive layer by the following molar ratio. The amount of each coating was adjusted by adjusting only the amount of the silver halide emulsion and the amount of the yellow coupler (Y-1) so that the yellow image density in the processing step 1 was almost the same.

[0243]

[Table 4]

A part of each of the obtained photosensitive materials was left as a cartridge in an environment of 40 ° C. and 55% for 3 weeks, and another part of each photosensitive material was stored in a refrigerator at 5 ° C.

Each of the obtained light-sensitive materials was exposed in the same manner as in Example 1, and the processing steps 1 and 3 of Example 1 were performed.
An image was obtained by performing development processing in processing step-5.

With respect to the obtained image, the color tone of the 100% portion of Y and the white background portion in the halftone chart were measured, and the color tone difference ΔE between the chilled storage light-sensitive material of each light-sensitive material and the 55% storage light-sensitive material at 40 ° C. was determined. The results obtained are shown below.

The color tone was measured using a Minolta colorimeter CM-20.
22 using CIE, L^*, A^*, B ^*Measure and save
Was evaluated as ΔE.

[0248]

[Table 5]

It can be seen that the light-sensitive material of the present invention has a small value of ΔE, and the color tone changes little when the light-sensitive material is preserved.

Example 3 Light-sensitive materials -31 to 32 were prepared in the same manner as in the light-sensitive material-11 of Example 1, except that the light-sensitive material -31 to 32 had a yellow coupler (Y Each light-sensitive material was produced in the same manner as light-sensitive material-11, except that -1) was changed as shown below.
The coating was carried out so that the amount of adhesion of the yellow coupler (Y-1) was the same.

[0251]

[Table 6]

A part of each of the obtained photosensitive materials was left in a cartridge at 40 ° C. and a 55% environment for 3 weeks, and another part of each photosensitive material was stored in a refrigerator at 5 ° C.

Each of the obtained light-sensitive materials was exposed in the same manner as in Example 1, and developed by the processing steps 3 and 5 of Example 1 to obtain images.

With respect to the obtained image, the color tone of 50% of Y in the halftone chart was measured, and the chilled storage light-sensitive material of each light-sensitive material was measured.
The results obtained by determining the color tone difference ΔE between the photosensitive material at 0 ° C. and 55% storage are shown below.

The color tone was measured using a Minolta colorimeter CM-20.
22 using CIE, L^*, A^*, B ^*Measure and save
Was evaluated as ΔE.

[0256]

[Table 7]

It can be seen that the light-sensitive material of the present invention has a small value of ΔE, and the color tone changes little when the light-sensitive material is stored.

Example 4 Light-sensitive materials 41 to 42 were produced in the same manner as in Light-sensitive material 11 of Example 1, but the light-sensitive materials 41 to 42 were prepared by changing the stain inhibitor of the fourth intermediate layer as follows. The photosensitive material was produced by changing the above. However, the amount of the solvent at that time was changed in proportion to the stain inhibitor.

[0259]

[Table 8]

A part of each of the obtained light-sensitive materials was left as a cartridge in an environment of 40 ° C. and 55% for 3 weeks, and another part of each light-sensitive material was stored in a refrigerator at 5 ° C.

Each of the obtained light-sensitive materials was exposed in the same manner as in Example 1, and developed by the processing steps 3 and 5 of Example 1 to obtain an image.

With respect to the obtained image, the color tone of the 50% portion of Y in the halftone chart was measured, and the chilled storage light-sensitive material of each light-sensitive material was measured.
The results of determining the color tone difference ΔE from the 0 ° C 55% storage sensitive material are shown below.

The color tone was measured using a Minolta colorimeter CM-20.
22 using CIE, L^*, A^*, B ^*Measure and save
Was evaluated as ΔE.

[0264]

[Table 9]

It can be seen that the light-sensitive material of the present invention has a small value of ΔE, and the color tone changes little when the light-sensitive material is stored.

Example 5 Light-sensitive materials 51 to 52 were produced in the same manner as in the light-sensitive material 11 of Example 1, except that the following compounds were used as the hardening agents in the light-sensitive materials 51 to 52 instead of H-2. The light-sensitive materials 51 to 52 were produced using the above.

[0267]

[Table 10]

A part of each of the obtained photosensitive materials was left as a cartridge in an environment of 40 ° C. and 55% for 3 weeks, and another part of each photosensitive material was stored in a refrigerator at 5 ° C.

Each of the obtained light-sensitive materials was exposed in the same manner as in Example 1, and developed by the processing steps 3 and 5 of Example 1 to obtain images.

With respect to the obtained image, the color tone of 50% of Y in the halftone chart was measured, and the chilled storage light-sensitive material of each light-sensitive material was measured.
The results of determining the color tone difference ΔE from the 0 ° C 55% storage sensitive material are shown below.

The color tone was measured using a colorimeter CM-20 manufactured by Minolta.
22 using CIE, L^*, A^*, B ^*Measure and save
Was evaluated as ΔE.

[0272]

[Table 11]

It can be seen that the light-sensitive material of the present invention has a small value of ΔE, and the color tone changes little when the light-sensitive material is stored.

Example 6 A part of the color developing solution used in processing steps 3 and 5 of Example 1 was stored at 50 ° C. for one week, and another part was stored at room temperature for one week.

Example 1 was applied to the sensitized material 51 stored in a refrigerator.
Exposure was carried out in accordance with the procedures described above, and development processing was performed using the processing liquid stored at a high temperature and the processing liquid stored at a normal temperature.

With respect to the obtained image, the color tone of 50% portion of Y in the halftone chart was measured, and the obtained image was obtained by using a color developing solution stored refrigerated and a color developing solution stored at 50 ° C. for each light-sensitive material. The result of obtaining the color difference ΔE for the image is shown below.

The color tone was measured using a Minolta colorimeter CM-20.
22 using CIE, L^*, A^*, B ^*Measure and save
Was evaluated as ΔE.

[0278]

[Table 12]

It can be seen that the light-sensitive material of the present invention has a small value of ΔE, and a small change in color tone when the color developing solution is stored.

[0280]

According to the color image forming method of the present invention, when a color image is obtained by using a silver halide photographic light-sensitive material, the fluctuation of the white background is small, and the color tone of the halftone dot of black is stable. In the plate making / printing process, a silver halide photographic light-sensitive material is exposed in accordance with halftone image information obtained by color separation and halftone image conversion to obtain a color image. It is suitable for proofreading with a stable tone of halftone dots and has an excellent effect.

Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat II (reference) G03C 7/413 G03C 7/413

Claims (5)

[Claims] A silver halide emulsion layer for forming a yellow image, a silver halide emulsion layer for forming a magenta image on a support,
A color image forming method in which a silver halide photographic light-sensitive material having a silver halide emulsion layer for forming a cyan image is color-developed after image exposure, the silver halide emulsion layer being adjacent to the silver halide emulsion layer for forming a yellow image And an intermediate layer containing 1.0 g to 3.0 g of gelatin per m ² between the color developer and the color developing solution.
And a compound represented by the following general formula (B), and hydroxylamine is contained in an amount of 0 to 2.0 g /
1. A color image forming method comprising: Embedded image [Wherein, R ₁ and R ₂ each represent an alkyl group;
R ₁ and R ₂ may be the same, or different, R ₁
And R ₂ may combine with each other to form a ring. General formula (B) HO—N (R) LA (wherein L represents an alkylene group which may be substituted, A represents a carboxy group, a sulfo group, a phosphono group, a hydroxy group,
An alkyl group represents an amino group which may be substituted, R represents a hydrogen atom, or an alkyl group which may be substituted) 2. A silver halide emulsion layer for forming a yellow image, a silver halide emulsion layer for forming a magenta image on a support,
In a color image forming method in which a silver halide photographic light-sensitive material having a silver halide emulsion layer for forming a cyan image is color-developed after image exposure, a silver halide emulsion layer for forming a yellow image of the silver halide photographic light-sensitive material is formed. The molar ratio of the number of moles of the yellow coupler to the number of moles of silver halide contained is 5.0 to 8.0, and the compound represented by the general formula (A) is contained in a color developing solution. And a compound represented by the formula (B) and hydroxylamine in an amount of 0 to 2.0 g / l. 3. A silver halide emulsion layer for yellow image formation, a silver halide emulsion layer for magenta image formation on a support,
In a color image forming method in which a silver halide photographic light-sensitive material having a silver halide emulsion layer for forming a cyan image is color-developed after image exposure, a silver halide emulsion layer for forming a yellow image of the silver halide photographic light-sensitive material is formed. It contains a compound represented by the following general formula (I), and in a color developing solution,
A color image forming method comprising the compound represented by the general formula (A) and the compound represented by the general formula (B), and containing 0 to 2.0 g / l of hydroxylamine. Embedded image [Wherein, R _A represents an alkyl group, a cycloalkyl group, an aryl group, or a heterocyclic group, and R _B represents a diffusion-resistant alkyl group or aryl group. R _C represents a hydrogen atom or a halogen atom, X represents an oxygen atom, -NH or -NR _D,
R _D represents an alkyl group, an alkylene group, an aryl group or a benzyl group. R _E and R _F each represent a hydrogen atom or alkyl, but not both hydrogen atoms. ] 4. A silver halide emulsion layer for yellow image formation, a silver halide emulsion layer for magenta image formation on a support,
A color image forming method in which a silver halide photographic light-sensitive material having a silver halide emulsion layer for forming a cyan image is color-developed after image exposure, the silver halide emulsion layer being adjacent to the silver halide emulsion layer for forming a yellow image And an intermediate layer containing a compound represented by the following general formula (AS), and the compound represented by the general formula (A) and the compound represented by the general formula ( B) The compound represented by formula (B) contains hydroxylamine in an amount of from 0 to 2.
A color image forming method comprising 0 g / l. Embedded image [Wherein, R ₁ and R ₂ each have 1 to 5 carbon atoms represented by
Wherein n represents an integer of 1 to 20, and k represents 1 or 2. A represents — (C ＝ O) —X—R ₃ (where X represents —O— or —N (R ₄ ) —, and R ₃ represents a hydrogen atom, an alkyl group, an alkenyl group, a cycloalkyl group or an aryl group And R ₄ represents a hydrogen atom, an alkyl group or an aryl group.), -OY (Y represents R ₃ or — (C ＝ O) —R ₃ , and R ₃ has the same meaning as described above. _{), - N (R 4)} (R 5) ( wherein, R ₄ is as defined above, R ₅ is a hydrogen atom, an alkyl group, an aryl group, or -
(C = O) represents -R _3, R ₃ is as defined above. ),
-P (= O) (OR ₃ ) (O) _l- (R ₆ ) (where l
Represents 0 or 1, R ₃ has the same meaning as described above, and R ₆ represents a hydrogen atom, an alkyl group, a cycloalkyl group, an alkenyl group or an aryl group. ) Or a cyano group. B is an alkyl group, an alkenyl group, a cycloalkyl group, an aryl group, a heterocyclic group, or —C (R ₁ ) (R ₂ ) —C _n H _{2n + 1-k}
-(A) represents a group represented by _k (here, R ₁ , R ₂ , n, k and A have the same meanings as above). ] 5. A silver halide emulsion layer for yellow image formation, a silver halide emulsion layer for magenta image formation on a support,
A color image forming method in which a silver halide photographic light-sensitive material having a silver halide emulsion layer for forming a cyan image is color-developed after image exposure, wherein the silver halide light-sensitive material is a compound represented by the following general formula (HA) Contains
The color developing solution contains the compound represented by the general formula (A) and the compound represented by the general formula (B), and contains 0 to 2.0 g / l of hydroxylamine. Color image forming method. General formula (HA) CH ₂ ＣＨCHSO ₂ —R ₁ —SO ₂ —CH ＝ CH ₂ [In the formula, R ₁ represents an alkylene group or the like]