JP2811497B2 - Silver halide photographic light-sensitive material with improved imprint - Google Patents

Description

Description: FIELD OF THE INVENTION The present invention relates to a silver halide photographic light-sensitive material, and more particularly, to improvement of a sticking mark.

[Background of the Invention]

In recent years, in the field of printing plate making, in order to save labor, rationalize and improve the working environment, there has been a demand for a technique for making film making, a so-called reversing process, conventionally performed in a dark room in a bright room. Equipment such as printers and printers has been improved. As a photosensitive material that can be handled in a light room (hereinafter simply referred to as a light room light-sensitive material), a light source rich in ultraviolet light, for example, a silver halide having a main sensitivity to an ultra-high pressure mercury lamp, a metal halide light source, a xenon lamp, a halogen lamp, and the like. Photo-sensitive materials. These silver halide photographic light-sensitive materials can be handled under a bright general fluorescent lamp of 100 to 300 lux or a special fluorescent lamp with a small amount of ultraviolet rays. However, these bright room light-sensitive materials have a problem that they are inferior in performance to the following light-sensitive materials handled in a conventional dark room. In other words, when a halftone dot image and a line image are overlaid and exposed as a return document, the line drawing performance (drawing character performance) is inferior, and when the line drawing document and the halftone document are fixed on a pasting base with a transparent tape for plate making, There is a drawback that a tape mark (tape tape mark) remains and the finished image is damaged.

[Object of the invention]

In view of the above, the object of the present invention is to provide a good performance in exposure with a selected light source, in particular, a good quality of a blank character in return characteristics as a photographic performance, and furthermore, there is no tape sticking mark. An object of the present invention is to provide a silver halide photographic light-sensitive material.

[Configuration of the invention]

The above object of the present invention is attained by a silver halide photographic light-sensitive material containing a dispersion of solid fine particles having ultraviolet absorption characteristics.

Further, the silver halide photographic light-sensitive material of the present invention preferably contains a hydrazine compound or a tetrazolium compound.

 Hereinafter, the present invention will be described in detail.

The method of using a solid fine particle dispersion having ultraviolet absorption (hereinafter, simply referred to as a UV agent) used in the present invention is a method of dissolving a generally used ultraviolet absorber in water or an organic solvent and incorporating it into a binder. It is essentially different from the above in that a UV absorber of a type that is essentially insoluble in water at a pH of 6 or less is added to an aqueous solution or a gelatin solution, and the resulting dispersion is finely divided in a ball mill or a sand mill. is there. The object of the present invention is to fix the solid fine particle dispersion thus dispersed to a certain layer in a silver halide photographic light-sensitive material.

The solid fine particle dispersion obtained by the above-mentioned method works effectively at the time of image formation, and improves the quality of a blank character and the adhesion.

Specific examples of compounds suitable for exhibiting such effects are shown below.

[In the formula, R ₁ , R ₂ , R ₃ , R ₄ , R ₅ , and R ₆ represent a substituted or unsubstituted alkyl group, a hydroxyalkyl group, a cyano group, an alkylcyano group, an alkoxy group, and a COOR group. At least two of R _{1 to} R ₆ represent a COOH group. ] In the present invention, the silver halide emulsion layer preferably contains a tetrazolium compound or a hydrazine compound. In this case, the tetrazolium compound to be contained in the practice of the present invention can be typically represented by, for example, the following general formulas [TI], [TII] or [TIII].

In the formula, R ₁ , R ₃ , R ₄ , R ₅ , R ₈ , R ₉ , R ₁₀ and R ₁₁ each represent an alkyl group (for example, a methyl group, an ethyl group, a propyl group, a dodecyl group, etc.), an alkenyl group ( For example, vinyl group, allyl group, propenyl group, etc., aryl group (for example, phenyl group, tolyl group, hydroxyphenyl group, carboxyphenyl group, aminophenyl group, mercaptophenyl group, α
-Naphthyl group, β-naphthyl group, hydroxynaphthyl group, carboxynaphthyl group, aminonaphthyl group and the like, and heterocyclic group (for example, thiazolyl group, benzothiazolyl group, oxazolyl group, pyrimidinyl group and pyridyl group)
And any of these may be a group that forms a metal chelate or complex.

 R_Two, R₆And R₇May have an allyl group or a substituent, respectively.
A good phenyl group, a naphthyl group which may have
A ring group, an alkyl group (eg, a methyl group, an ethyl group,
Pill, butyl, mercaptomethyl, mercaptoe
Tyl group, etc.), hydroxyl group, carboxyl group or
Salt, alkoxycarbonyl group (for example, methoxycarbonyl
Groups, ethoxycarbonyl groups, etc.), amino groups (for example,
Amino group, ethylamino group, anilino group, etc.), mercapto
Represents a group selected from a group, a nitro group and a hydrogen atom, and D represents
Represents a divalent aromatic group, E is an alkylene group, arylene
A group selected from a group and an aralkylene group; Is
Represents an anion converted to a sulfur atom, and n is an integer of 1 or 2
Represents However, when the compound forms an inner salt, n is 1
It is.

Next, specific examples of the cation portion of the tetrazolium compound represented by the general formula [TI], [TII] or [TIII] are shown, but the present invention is not limited thereto.

Exemplary compound: T-1 2- (benzothiazol-2-yl) -3-phenyl-5-dodecyl-2H-tetrazolium T-2 2,3-diphenyl-5- (4-t-octyloxyphenyl) -2H -Tetrazolium T-3 2,3,5-triphenyl-2H-tetrazolium T-4 2,3,5-tri (p-carboxyethylphenyl) -2H-tetrazolium T-5 2- (benzothiazol-2-yl ) -3-Phenyl-5- (o-chlorophenyl) -2H-tetrazolium T-6 2,3-diphenyl-2H-tetrazolium T-7 2,3-bis (p-methoxyphenyl) -5-phenyl-2H -Tetrazolium T-8 2- (p-methoxyphenyl) -3- (p-toluyl) -5-phenyl-2H-tetrazolium T-9 2,3-diphenyl-5-ethyl-2H-tetrazolium T-10 2, 3-di Enyl-5-n-hexyl-2H-tetrazolium T-11 5-cyano-2,3-diphenyl-2H-tetrazolium T-12 2- (benzothiazol-2-yl) -5-phenyl-3- (4- Tolyl) -2H-tetrazolium T-13 2- (benzothiazol-2-yl) -5
(4-chlorophenyl) -3- (4-nitrophenyl)
-2H-tetrazolium T-14 5-ethoxycarbonyl-2,3-di (3-nitrophenyl) -2H-tetrazolium T-15 15-acetyl-2,3-di (p-ethoxyphenyl) -2H-tetrazolium T -16 2,5-diphenyl-3- (p-tolyl) -2H
-Tetrazolium T-17 2,5-diphenyl-3- (p-iodophenyl) -2H-tetrazolium T-18 2,3-diphenyl-5- (p-diphenyl) -2
H-tetrazolium T-19 5- (p-bromophenyl) -2-phenyl-
3- (2,4,6-trichlorophenyl) -2H-tetrazolium T-20 3- (p-hydroxyphenyl) -5- (p
-Nitrophenyl) -2-phenyl-2H-tetrazolium T-21 5- (3,4-dimethoxyphenyl) -3- (2
-Ethoxyphenyl) -2- (4-methoxyphenyl)
-2H-tetrazolium T-22 5- (4-cyanophenyl) -2,3-diphenyl-2H-tetrazolium T-23 3- (p-acetamidophenyl) -2,5-diphenyl-2H-tetrazolium T-245 -Acetyl-2,3-diphenyl-2H-tetrazolium T-25 5- (fur-2-yl) -2,3-diphenyl-2
H-tetrazolium T-26 5- (thien-2-yl) -2,3-diphenyl-2H-tetrazolium T-27 2,3-diphenyl-5- (pyrid-4-yl)
-2H-tetrazolium T-28 2,3-diphenyl-5- (quinol-2-yl) -2H-tetrazolium T-29 2,3-diphenyl-5- (benzoxazol-2-yl) -2H-tetrazolium T -30 2,3,5-tri (p-ethylphenyl) -2H-tetrazolium T-31 2,3,5-tri (p-allylphenyl) -2H-tetrazolium T-32 2,3,5-tri ( p-hydroxyethyloxyethoxyphenyl) -2H-tetrazolium T-33 2,3,5-tri (p-dodecylphenyl) -2H-
Tetrazolium T-34 2,3,5-tri (p-benzylphenyl) -2H-
Tetrazolium Next, the anion part of the tetrazolium compound represented by the general formula [TI], [T II] or [T III] is a fluorine atom, a chlorine atom, a bromine atom or the following general formula [a],
It can be represented by [b], [c], [d] or [e].

In the formula, R ₁₂ is an alkyl group having 1 to 32 carbon atoms, and represents, for example, a methyl group, an ethyl group, a propyl group, a hexyl group, a nonyl group, a dodecyl group, a hexadecyl group, and the like. Contains sulfur atoms. n represents an integer of 1 to 3, and n ₁ represents an integer of 0 to 4.

In the formula, R ₁₃ , R ₁₄ , R ₁₆ , R ₁₇ and R ₁₈ are each a linear or branched alkyl group having 1 to 32 carbon atoms, for example, a methyl group, an ethyl group, a butyl group, an isobutyl group, It represents a pentyl group, a hexyl group, an octyl group, a nonyl group, a decyl group, a dodecyl group, an octadecyl group or the like, but may be a cyclic alkyl group, and these groups contain at least one sulfur atom. R ₁₃ , R ₁₄ , R ₁₆ , R ₁₇ and R ₁₈ each represent an aryl group, for example, a phenyl group or a naphthyl group, and these aryl groups contain at least one sulfur atom.

Further, R ₁₅ and R ₁₉ represent an acid group such as a carboxylate group, a sulfonato group or a phosphate group.

In the formula, R ₂₀ represents a saturated or unsaturated linear or branched alkyl group having 1 to 32 carbon atoms.Examples of the saturated alkyl group include a methyl group, an ethyl group, a butyl group, an isobutyl group and a hexyl group. , Dodecyl group, octadecyl group, etc., and the unsaturated alkyl group includes, for example, allyl group, puenyl group, octenyl group and the like. These saturated and unsaturated alkyl groups contain at least one sulfur atom.
n ₂ and n ₃ is an integer of 1-3. The n ₄ represents an integer of 0 to 6.

In the formula, Y is a sulfur atom, a selenium atom, an oxygen atom, a nitrogen atom or (Where R ₂₂ represents a hydrogen atom or an alkyl group having 1 to 3 carbon atoms, such as a methyl group or an ethyl group)
₂₁ represents a group having the same meaning as the group represented by R ₁₂ in the general formula [a] or an aryl group containing at least one sulfur atom (for example, a phenyl group, a naphthyl group and the like). Also Z
Represents a group of atoms necessary to form a 5- or 6-membered hetero ring, and examples thereof include a thiazole ring, a selenazole ring, an oxazole ring, an imidazole ring, a pyrazole ring, a triazole ring, a tetrazole ring, and a pyrimidine ring.
Triazine rings and the like can be mentioned.

The above hetero ring may further have a substituent such as an alkyl group and an aryl group.

As the tetrazolium compound used in the present invention, one kind may be used, or two or more kinds may be used in combination at an arbitrary ratio.

The tetrazolium compound according to the present invention is used in an amount of 1 × 10 ^-6 to 10 mol, particularly 2 × 10 ^-4 to 2 × 10 ^-1 mol, per mol of silver halide contained in the light-sensitive material of the present invention. It is preferable to use in the range.

A preferable addition amount is 5 to 200% by weight based on the crosslinking agent.

The hydrazine compound used in the present invention is preferably a compound represented by the following general formula [H].

In the formula, R ₁ represents a monovalent organic residue, R ₂ represents a hydrogen atom or a monovalent organic residue, and Q ₁ and Q ₂ represent a hydrogen atom, an alkylsulfonyl group (including those having a substituent) ), Represents an arylsulfonyl group (including those having a substituent),
X ₁ represents an oxygen atom or a sulfur atom. Among the compounds represented by the general formula [H], compounds wherein X ₁ is an oxygen atom and R ₂ is a hydrogen atom are more preferred.

The monovalent organic residue of R ₁ and R ₂ includes an aromatic residue, a heterocyclic residue and an aliphatic residue.

Examples of the aromatic residue include a phenyl group, a naphthyl group and a substituent thereof (for example, an alkyl group, an alkoxy group, an acylhydrazino group, a dialkylamino group, an alkoxycarbonyl group, a cyano group, a carboxy group, a nitro group, an alkylthio group, a hydroxy group , A sulfonyl group, a carbamoyl group, a halogen atom, an acylamino group, a sulfonamide group, a urea group, a thiourea group, etc.). Specific examples of those having a substituent include, for example, 4-
Methylphenyl group, 4-ethylphenyl group, 4-oxyethylphenyl group, 4-dodecylphenyl group, 4-carboxyphenyl group, 4-diethylaminophenyl group, 4
-Octylaminophenyl group, 4-benzylaminophenyl group, 4-acetamido-2-methylphenyl group, 4
-(3-ethylthioureido) phenyl group, 4- [2-
(2,4-di-tert-butylphenoxy) butyramide]
Examples include a phenyl group and a 4- [2- (2,4-di-tert-butylphenoxy) butylamido] phenyl group.

The heterocyclic residue is a 5- or 6-membered monocyclic or condensed ring having at least one of oxygen, nitrogen, sulfur and selenium atoms, which may have a substituent. Specifically, for example, a pyrroline ring, a pyridine ring, a quinoline ring, an indole ring, an oxazole ring, a benzoxazole ring, a naphthoxazole ring, an imidazole ring, a benzimidazole ring, a thiazoline ring, a thiazole ring, a benzothiazole ring, a naphthothiazole ring, Residues such as a selenazole ring, a benzoselenazole ring and a naphthoselenazole ring can be exemplified.

These heterocycles have 1 to 1 carbon atoms such as methyl group and ethyl group.
An alkyl group having 4 carbon atoms such as a methoxy group and an ethoxy group;
And an aryl group having 6 to 18 carbon atoms such as an alkoxy group or a phenyl group, a halogen atom such as chloro or bromo, an alkoxycarbonyl group, a cyano group or an amino group.

Aliphatic residues include straight-chain and branched alkyl groups, cycloalkyl groups and those having a substituent, alkenyl groups and alkynyl groups.

Examples of the linear or branched alkyl group include those having 1 carbon atom
To 18 and preferably 1 to 8 alkyl groups, specifically, for example, methyl group, ethyl group, isobutyl group, 1-octyl group and the like.

Examples of the cycloalkyl group include those having 3 to 10 carbon atoms, and specific examples include a cyclopropyl group, a cyclohexyl group, and an adamantyl group. Examples of the substituent for the alkyl group or the cycloalkyl group include an alkoxy group (for example, a methoxy group, an ethoxy group, a propoxy group, a butoxy group, etc.), an alkoxycarbonyl group, a carbamoyl group, a hydroxy group, an alkylthio group, an amide group, an acyloxy group,
Cyano group, sulfonyl group, halogen atom (for example, chlorine,
Bromine, fluorine, iodine, etc.), aryl groups (eg, phenyl group, halogen-substituted phenyl group, alkyl-substituted phenyl group) and the like. Specific examples of the substituted ones include, for example, 3-methoxypropyl group, ethoxycarbonylmethyl group, -Chlorocyclohexyl, benzyl, p-methylbenzyl, p-chlorobenzyl and the like. Examples of the alkenyl group include an allyl group, and examples of the alkenyl group include a propargyl group.

Preferred specific examples of the hydrazine compound of the present invention are shown below, but the present invention is not limited thereto.

The hydrazine compound represented by the general formula [H] may be added to the silver halide emulsion layer and / or the non-photosensitive layer on the support on the side of the silver halide emulsion layer.
A silver halide emulsion layer and / or a lower layer thereof. The addition amount is preferably from 10 ^-5 to 10 ^-1 mol / mol of silver, and more preferably from 10 ^-4 to 10 ^-2 mol / mol of silver.

The silver halide used in the silver halide photographic light-sensitive material of the present invention is silver chloride, silver chlorobromide or silver chloroiodobromide having an arbitrary composition and contains at least 50 mol% of silver chloride. The average grain size of the silver halide grains is in the range of 0.025 to 0.5 μm, but is more preferably 0.05 to 0.30 μm.

The monodispersity of the silver halide grains according to the present invention is defined as follows. It is important to prepare the value to be 5 to 60, preferably 8 to 30. The grain size of the silver halide grains according to the present invention is conveniently represented by the ridge length of the cubic grains, and the monodispersity is a value obtained by dividing the standard deviation of the grain size by the average grain size.
Expressed as a value multiplied by 100.

Further, as the silver halide that can be used in the present invention, a type having a multilayer structure of at least two layers can be used. For example, silver chloride in the core, silver bromide in the shell,
Conversely, silver chlorobromide grains having a core portion of silver bromide and a shell portion of silver chloride may be used. At this time, iodine can be contained in any layer within 5 mol%.

At the time of preparing the silver halide emulsion of the present invention, a rhodium salt can be added to control the sensitivity or gradation.
Although the addition of the rhodium salt is generally preferred at the time of particle formation,
It may be at the time of chemical ripening or at the time of preparing an emulsion coating solution.

The silver halide used in the present invention can be sensitized by various chemical sensitizers known in the photographic light-sensitive material industry.

The silver halide used in the present invention can contain various sensitizers and stabilizers already known in the photographic light-sensitive material industry and other additives.

The silver halide is added to the hydrophilic colloid layer.These hydrophilic colloids can be various hydrophilic colloids known in the photographic material such as gelatin, and these hydrophilic colloids can be used. And a layer containing no silver halide, such as an antihalation layer, a protective layer, and an intermediate layer.

Further, as the support used in the present invention, various supports known in the photographic light-sensitive material industry such as a polyester film can be used.

The following developing agents are used for developing the silver halide photographic light-sensitive material of the present invention. HO- (CH =
Representative examples of the CH) -OH type developing agents include hydroquinone, and catechol, virogallol and derivatives thereof, ascorbic acid, chlorohydroquinone, bromohydroquinone, methylhydroquinone, 2,3-dibromohydroquinone, and 2,5. -Diethylhydroquinone, catechol, 4-chlorocatechol, 4-
Phenyl-catechol, 3-methoxy-catechol, 4
-Acetyl-pyrogallol, sodium ascorbate and the like.

As the HO- (CH = CH) -NH ₂ type developer, ortho- and para-aminophenols or aminovirazolones are typical, and 4-aminophenol, 2-amino-6-phenylphenol, -Amino-4-chloro-6-phenylphenol, N-methyl-p-aminophenol, and the like.

Further, examples of the H ₂ N— (CH ＝ CH) —NH ₂ type developer include 4-amino-2-methyl-N, N-diethylaniline,
2,4-diamino-N, N-diethylaniline, N- (4
-Amino-3-methylphenyl) -morpholine, p-phenylenediamino, and the like.

Examples of the heterocyclic developer include 1-phenyl-3-pyrazolidone, 1-phenyl-4,4-dimethyl-3-pyrazolidone, 1-phenyl-4-methyl-4-hydroxymethyl-3-pyrazolidone, and the like. 3-pyrazolidones, 1-phenyl-4-amino-5-pyrazolone, 5-
Aminouracil and the like can be mentioned.

In addition, The James of the Theory of the James
Photographic Process 4th Edition (The Theory of th
e Photographic Proccss Fourth Edition) 291-334
Pages and the Journal of the American Chemical Soc
The developer described in Vol. 73, p. 3, 100 (1951) can be effectively used in the present invention. These developers may be used alone or in combination of two or more, but it is preferable to use two or more in combination. Further, even if a sulfite such as sodium sulfite or potassium sulfite is used as a preservative in a developer used for developing the light-sensitive material of the present invention, the effects of the present invention are not impaired, and One of the features can be mentioned. The amount of the developing solution is 5 to 500 g, more preferably 20 to 200 g, using a hydroxylamine or hydrazide compound as a preservative.

Examples of the glycols include ethylene glycol, diethylene glycol, propylene glycol, triethylene glycol, 1,4-butanediol, and 1,5-pentanediol. Of these, diethylene glycol is preferably used. The preferred use amount of these glycols is 5 to 500 g per developer, more preferably
20-200g. These organic solvents can be used alone or in combination.

The silver halide photographic light-sensitive material of the present invention can be subjected to a development treatment using a developer containing the above-mentioned development inhibitor to obtain a photographic material having extremely excellent storage stability.

The pH value of the developer having the above composition is 9 to 12, but the pH value is preferably in the range of 10 to 11 from the viewpoint of preservation and photographic characteristics.

The silver halide photographic light-sensitive material of the present invention can be processed under various conditions. The processing temperature is, for example, the development temperature
The temperature is preferably 50 ° C. or lower, particularly preferably about 30 ° C., and the development time is generally completed within 3 minutes. Particularly preferably, the development time is preferably within 2 minutes.
In addition, processing steps other than development, such as washing, stopping, stabilizing, fixing and, if necessary, steps such as pre-hardening and neutralization are optional, and may be omitted as appropriate. Furthermore, these processes may be so-called hand developing processes such as plate developing and frame developing, or may be mechanical developing such as roller developing and hanger developing.

〔Example〕

 Hereinafter, the present invention will be described specifically with reference to examples.

Example 1 Dispersion of UV absorber (solid fine particle dispersion of the ultraviolet absorbent) is, H ₂ O 1000 g in a container ball gelatin 120g ultraviolet absorber 200g dodecyl sulfonate sodium salt 10g full fluorinated octyl benzene sulfonate, sodium salt 2 g of a matting agent (SiO _{2 having an} average particle size of 5 μm), 5 g of zirconium oxide beads, and a container were sealed and dispersed in a ball mill for 5 days. After the dispersion, the beads were removed to obtain a dispersion.

(Preparation of silver halide emulsion sample) Controlled double jet in an acidic atmosphere of pH 3.0
Rhodium per mole of silver ⁵Molar content
Average particle size and silver halide composition monodispersion shown in Table 1 below
Degree particles were created. Particle growth is benzyl adenine
In a system containing 30 mg per 1% gelatin aqueous solution
Was. After mixing silver and halide, 6-methyl-4-hydroxy
1,3,3a, 7-tetrazaindene in 1 mol of silver halide
After adding 600 mg per water washing and desalting.

Thereafter, 60 mg of 6-methyl-4-hydroxy-1,3,3a, 7-tetrazaindene was added per mol of silver halide, followed by sulfur sensitization. After sulfur sensitization, 6-methyl-4-hydroxy-1,3,3a, 7-tetrazaindene was added as a stabilizer.

The following additives were added to each of the silver halide emulsions so that the respective coating amounts were obtained, and during biaxial stretching, a vinylidene chloride-methyl methacrylate-methacrylic acid (90: 8: 2) latex undercoat treatment (thickness: 1 μm) ) On a polyethylene terephthalate support having a thickness of 100 μm.

Latex polymer: styrene-butyl acrylate-acrylic acid terpolymer 1.0 g / m ² saponin 200 mg / m ² sodium dodecylbenzenesulfonate 100 mg / m ² hydroquinone 200 mg / m ² styrene-maleic acid copolymer 200 mg / m ² Gallic acid butyl ester 500 mg / m ² 5-Methylbenzotriazole 30 mg / m ² Solid fine particle dispersion dye of the present invention 2-mercaptobenzimidazole-5-sulfonic acid shown in Table 1
30 mg / m ² inert ossein gelatin 1.5 g / m ² silver amount 2.8 g / m ² The following protective layer was coated on the above emulsion layer.

(Emulsion layer protective film) Fluorinated dioctylsulfosuccinate 300 mg / m ² Matting agent: synthetic silica (average particle size 3.5 μm) 100 mg / m ² acid-treated gelatin 1.2 g / m ² The following backing layer and protective film layer were applied to the surface.

The sample thus obtained was exposed by the method described below, and developed using the following developing solution and fixing solution. The evaluation was performed as follows.

[Developer formulation] (Composition A) Pure water (ion-exchanged water) 150 ml Ethylenediaminetetraacetic acid disodium salt 2 g Diethylene glycol 50 g Potassium sulfite (55% W / V aqueous solution) 100 ml Potassium carbonate 50 g Hydroquinone 15 g 5-Methylbenzotriazole 200 mg 1- Phenyl-5-mercaptotetrazole 30mg Potassium hydroxide Amount to adjust pH of used solution to 10.4 Potassium bromide 4.5g (Composition B) Pure water (ion exchange water) 3ml Diethylene glycol 50g Ethylenediaminetetraacetic acid disodium salt 25mg Acetic acid (90% aqueous solution) 0.3 ml 5-Nitroindazole 110 mg When using a developing solution, the above-mentioned composition A and composition B were dissolved in 500 ml of water in this order, and finished to 1 before use.

[Formulation of fixer] (Composition A) Ammonium thiosulfate (72.5% W / V aqueous solution) 240ml Sodium sulfite 17g Sodium acetate trihydrate 6.5g Boric acid 6g Sodium citrate dihydrate 2g Acetic acid (90% W / V aqueous solution) 13.6ml when using (composition B) pure water (ion-exchanged water) 17 ml sulfuric acid (50% W / V aqueous solution) 4.7 g aluminum sulfate (Al ₂ O ₃ aqueous solution converted content 8.1% W / V) 26.5g fixer The above composition A and composition B were dissolved in 500 ml of water in this order, and finished to 1 for use. The pH of the fixing solution was about 4.3.

[Development processing conditions] (Process) (Temperature) (Time) Current image 38 ° C 20 seconds Fixed 28 ° C 20 seconds Rinse at room temperature 20 seconds Exposure method An electrodeless discharge tube light source manufactured by FUSION, USA It was mounted under a glass plate, and the original and the photosensitive material were overexposed on the glass surface so that the sticking marks and the character quality shown in FIG. 1 could be evaluated.

1. Photographic performance evaluation method (1) Pasting marks In Fig. 1, the net film 2 is placed on the bases 3 and 5 for pasting, and the periphery of the net film is further fixed with transparent scotch tape for plate making. After the exposure and development processing, when there was no tape mark (sticking mark), "5" marks were conspicuous, and the worst level was set to "1".

(2) Quality of cut characters The quality of cut characters is 50% of the net film 2 in Fig. 1.
When a portion having a halftone dot area is properly exposed so that the return photosensitive material 1 has a halftone dot area of 50%, the image quality at which a 50 .mu.m line width on the line drawing film 4 in FIG. In other words, a five-step evaluation was performed with a very good extracted character image quality being "5" and the worst level being "1".

 Table 1 shows the results.

[Effects of the Invention] It can be seen that a silver halide photographic light-sensitive material provided with a layer containing a solid fine particle dispersion of the ultraviolet absorber of the present invention is excellent after pasting. Further, it can be seen that when a tetrazolium compound or a hydrazine compound is contained, the sticking marks and the quality of the printed characters are further excellent.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows the positional relationship between a blank character, an original at the time of a return operation, and a photosensitive material. 1. Photosensitive material for return 2. Halftone dot image film 3,5 .. Paste base 4. Film of positive line image 6. Cut mask film

Continuation of the front page (56) References JP-A-63-314541 (JP, A) JP-A-63-95437 (JP, A) JP-A-63-95438 (JP, A) JP-A-50-80119 (JP, A) JP-A-55-129136 (JP, A) JP-A-2-15251 (JP, A) JP-A-63-201647 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB G03C 1/06 501 G03C 1/43 G03C 1/815

Claims (2)

(57) [Claims] 1. A silver halide photographic light-sensitive material comprising a solid fine particle dispersion of an ultraviolet absorber having an ultraviolet absorbing property, which is substantially insoluble in water at a pH of 6 or less. 2. A silver halide photographic light-sensitive material according to claim 1, which contains a hydrazine compound or a tetrazolium compound.