JPH01229245A - Photosensitive material - Google Patents

Abstract

PURPOSE:To improve the sharpness of the photosensitive material, and to lessen the residual color of the photosensitive material by incorporating an aqueous ionic polymer in the layer of the same side to that of a halation protective layer mounted on the photosensitive material. CONSTITUTION:The halation protective layer contg. a mordant and a dyestuff is mounted on a supporting body, and the water soluble ionic polymer (A) is incorporated in the layer of the same side to that of the halation protective layer. And, the component (A) is composed of a synthetic polymer which has a repeating unit shown by the formula or a natural aqueous polymer such as alginic acid, etc., and is incorporated in the layer (such as an emulsion layer) except the layer mentioned above. And, the mordant is preferably composed of a polymer latex. In the formula, R1 and R2 are each hydrogen atom. or alkyl group, L is -CONH- or -COO- group, etc., J is alkylene or arylene group, etc., Q is -COOM group, etc. (M is hydrogen atom. or a cation), (p) and (q) are each 0 or 1, (r) is 1, Y is hydrogen atom. or carboxyl group.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a photosensitive material that has good image quality, particularly sharpness, and little residual color.

(Prior Art) Improving image quality is of great interest to photosensitive material manufacturers. As a way to improve the sharpness of high image quality,
A method is known in which a mordant and a dye are included in a light-sensitive material for the purpose of preventing irradiation and no-ration.

However, there was a problem that the dye was not removed sufficiently during the treatment process (many residual colors), and countermeasures were needed. On the other hand, there is a way to prevent residual color by combining a mordant with a weak mordanting ability and a dye, but it is known that in this case, the dye will diffuse out during the coating process, resulting in a decrease in sensitivity.

(Object of the Invention) An object of the present invention is to provide a light-sensitive material that has improved sharpness without reducing sensitivity and has good residual color.

(Disclosure of the Invention) The above object of the present invention is to have at least one layer containing a mordant and a dye on at least one side of a support, and to contain a natural water-soluble ionic polymer on the same side as that layer. It has been found that this can be obtained by a photosensitive material characterized by the following.

Water-soluble ionic polymer used in the present invention (residual color improving agent)
Examples include synthetic polymers containing repeating units of the following general formula [P], natural water-soluble ionic polymers, and derivatives thereof.

General formula CP] In the formula, R1 and R2 may be the same or different and each is a hydrogen atom or an alkyl group, preferably a carbon atom number l-≠
an alkyl group (including those with substituents, such as methyl group, ethyl group, propyl group, butyl group, etc.), a halogen atom (e.g. chlorine atom) or -CH2C00M gold, L is -CONH-1-NHCO- 1-COO-
1-OCO-1-CO-1-8Q2-1-NH8O2-
1-802NH- or -〇-, J is an alkylene group, preferably an alkylene group having 1 to 10 carbon atoms (
Those having substituents are also included. For example, methylene group, ethylene group, propylene group, trimethylene group, butylene group, hexylene group, etc.), arylene group (including those with substituents, such as phenylene group), aralkylene group (substituent group or +CH2CH2O group) -Sushi-1H (m represents an integer of O-HiroO, and an integer of n#io-≠.

), and Q is -COOM, -803M.

preferable. M represents a hydrogen atom or a cationic group, p
and q each represent O or /.

r is an integer, particularly preferably /. Y represents a hydrogen atom or a carboxyl group (or a salt thereof).

The synthetic water-soluble monomers of the present invention can also be copolymerized with ethylenically unsaturated monomers.

Examples of copolymerizable ethylenically unsaturated monomers are styrene, alkylstyrenes, hydroxyalkylstyrenes (
Alkyl groups have carbon numbers up to /≠, such as methyl,
(ethyl, butyl, etc.), vinylbenzenesulfonic acid and its salts, α-methylstyrene, N-vinylpyrrolidone, monoethylenically unsaturated esters of aliphatic acids (e.g. vinyl acetate, vinyl propionate, etc.), ethylenically unsaturated Monocarboxylic or dicarboxylic acids and their salts (e.g. acrylic acid, methacrylic acid), maleic anhydride, esters of ethylenically unsaturated monocarboxylic or dicarboxylic acids (e.g. n-butyl acrylate, dimethyl maleide), ethylenically unsaturated Amides of saturated monocarboxylic or dicarboxylic acids (e.g. acrylamide, λ-
acrylamide) (sodium 2-methylpropanesulfonate), etc.

Next, specific examples of synthetic water-soluble polymers of the general formula CP] will be given.

P-/ Ichiyoichi 0OH P-j CH3 0ONa P-G -t CH2COOH OOH P-7 SO3K m:n=ri,t:! P-r CH2C0OH -IO CH3 m: n=ll-0: lO p −// CH3 O3Na m=　n=! 0”,!0 P-l co P-/J P-／≠ CH2C0OH m:n=/l:fj p-/! t:m:n=/j:, 2J:40 P-/A The synthetic water-soluble polymer of the present invention has a molecular weight of i.

00~/, 000,000. Preferably λ, 00θ~3
00,000.

- Anionic polymers are preferred as natural water-soluble ionic polymers. For example, alginic acid, gum arabic, pectic acid, and gum tragacanth can be used.

Further, examples of derivatives of natural water-soluble ionic polymers include dextran sulfate, carboxyalkyldextran, cellulose sulfate, carboxyalkyl cellulose, pullulan sulfate, and carboxyalkyl pullulan. The molecular weight of these natural water-soluble ionic polymer derivatives is preferably too or 10,000, but particularly preferably 200θ to J(1)17. It's ooo.

For the production of these, Japanese Patent Publication No. 3T-IIYR, U.S. Patent No. J, 7A, 2. Octopus≠ issue, special public Akira≠! -1xrxo
No., same $J--/11711, same pt-4tO/≠2
A method similar to the method described in No. 4'j-4//Tako No. 4 can be applied.

The residual color improving agent may be added to any layer, but it is preferably added to a layer other than the layer to which the mordant is added.

” The amount of residual color improver added is 0.00 / ~ / Of/m
2, preferably 0. 0/f ~/f/rn2
, I like Sarah 0.0! f ~0. It/m2.

Anionic conversion polymers are preferred as mordants used in the present invention.

As the anion conversion polymer, various known ammonium salt (or phosphonium salt) polymers can be used. Ammonium salt (or phosphonium salt) polymers are widely known as mordant polymers and antistatic polymers from the following publications.

JP-A Showa Tar/4A, tag θ, US patent 3゜ri SR,
Tata! No., JP-A-6J-/G-233, JP-A-J4T
-/Kotsu, θ27, Tokukai Akira! goo/jar, l'3
J issue, JP-A-33-403.21, JP-A-J≠-22
Water-dispersed latex as described in No. 274; US #f2. ! <su, j & 4, the same J, /<tr, ot
Polyvinylpyridinium salts described in U.S. Pat. rrrr
, ore issue.

Preferred anion conversion polymers have the general formula % where % represents an ethylenically unsaturated monomer unit. R□
is a water atom or a lower alkyl group with a carbon number of about 2,
L represents a divalent radical having / to about 7.2 carbon atoms.几2, R3 and R4 each represent the same or different alkyl group having 20 carbon atoms, or an aralkyl group having 7 to 20 carbon atoms, or a hydrogen atom, R2, R3 and R4 may be mutually connected to form a cyclic structure together with Q. From the viewpoint of good color retention, only one of R2, R3, and R4 is a hydrogen atom. Q is Nj or P, and Xe represents an anion other than iodide ion. X is O to about θ molar, and y is about 10 to /θO molar.

Examples of ethylenically unsaturated monomers A include olefins (e.g. ethylene, propylene, /-
butene, vinyl chloride, vinyl chloride, isobutyne, vinyl bromide, etc.), dienes (e.g., dutadiene, isoprene, chloroprene, etc.), ethylenically unsaturated esters of fatty acids or aromatic carboxylic acids (e.g., vinyl acetate, alinoacetate, vinyl propionate, vinyl butyrate, vinyl benzoate), esters of ethylenically unsaturated acids (e.g. methyl methacrylate, butyl methacrylate, tert-butyl methacrylate, cyclohexyl methacrylate, benzyl methacrylate,
Phenyl methacrylate, octyl methacrylate, amyl acrylate, λ-ethyl hequinyl acrylate,
Benzyl acrylate, maleic acid diptyle ester,
fumaric acid diethyl ester, ethyl crotonate, methylene malonic acid dibutyl ester), styrenes (e.g., styrene, α-methylstyrene, vinyltoluene, chloromethylstyrene, chlorstyrene, dichlorostyrene, bromstyrene, etc.) , unsaturated nitriles (eg acrylonitrile, methacrylonitrile, allyl cyanide, crotonitrile, etc.). Among these, styrenes and methacrylic acid esters are preferred for hemorrhoids in terms of emulsion polymerizability, hydrophobicity, and the like. A may contain two or more of the above monomers.

From the viewpoint of polymerization reactivity, etc., it is preferable that 几1 be a hydrogen atom or a methyl group.

'EL6 From the point of view of alkali resistance, R5 in the formula 10-N-1 represents alkylene (e.g., methylene, ethylene, trimethylene, tetramethylene, etc.), annelene, aralkylene (e.g., alkylene having R6 represents a hydrogen atom or R2. n is/or an integer of λ.

Q is preferably N in view of the toxicity of the raw material.

Xe is an anion other than iodide ion, such as halogen ion (for example, chlorine ion, bromide ion, etc.), alkyl sulfate ion (for example, methyl sulfate ion, ethyl sulfate ion, etc.), alkyl or aryl sulfonate ion (for example, methanesulfonic acid, ethanesulfonic acid, benzenesulfonic acid, p-toluenesulfonic acid, etc.)
, nitrate ion, acetate ion, sulfate ion, etc. Among these, chloride ions, alkyl sulfate ions, arylsulfonate ions, and sulfate ions are particularly preferred.

The alkyl groups and aralkyl groups of 几2, f(13 and)t+4 include substituted alkyl groups and substituted aralkyl groups.

Examples of alkyl groups include unsubstituted alkyl groups, such as methyl, ethyl, propyl, isopropyl, t-butyl, hexyl, cyclohexyl, -monoethylhexyl, dodecyl, and substituted alkyl groups, such as alkoxyalkyl groups. (for example, methoxymethyl group, methoxybutyl group, ethoxyethyl group, duthoxyethyl group, vinyloxyethyl group, etc.), cyanoalkyl group (for example, 1-cyanoethyl group, 3-cyanozolopyl group, etc.)
, halogenated alkyl group (e.g., 2-fluoroethyl group, cochloroethyl group, ) ξ-fluoropropyl group, etc.), alkoxycarbonylalkyl group (e.g., ethoxycarbonylmethyl group, etc.), allyl group, ! -Butenyl group, propargyl group, etc.

Examples of the aralkyl group include unsubstituted aralkyl groups, such as benzyl, phenethyl, diphenylmethyl, and naphthylmethyl groups; substituted aralkyl groups, such as alkylaralkyl groups (such as goomethylbenzyl,
Ko,! -dimethylbenzyl group, Hiro-isopropylbenzyl group, ≠-octylbenzyl group, etc.), alkoxyaralkyl group (e.g., μm methoxybenzyl group, Hiro-pentafluoroprobenyloxybenzyl group, μ-ethoxybenzyl group, etc.), cyano Aralkyl groups (e.g., coucyanobenzyl group, ≠-(coucyanophenyl)benzyl group, etc.), halogenated aralkyl groups (e.g., t-
Examples include chlorobenzyl group, 3-chlorobenzyl group, <'-furomobenzyl group, and chlorobenzyl group.

The alkyl group preferably has 7 to 72 carbon atoms, and the aralkyl group preferably has 7 to 72 carbon atoms/g.

几. , R3 and FL4 are linked together to form a cyclic structure with Q, as shown below.

An example of an aliphatic heterocycle (representing an atomic group necessary to form a bare ring) is, for example, R4. 0 is an integer between λ and 7.2), 几□. each represents a hydrogen atom or a lower alkyl group having up to 2 carbon atoms. ).

represents the atomic group required to form the Zen ring).

几 "10" represents "10" and R. If two R2's are present, they may be the same or different.), etc.

Among these ring structures, R2, l(4, R6, Q and Xe have the same meanings as in general formula (1)).

Of course, the y component may be a mixed component of two or more buildings.

X is preferably between 20 and 40 moles, and y is preferably between 0 and 40 moles.

further transferred from the desired layer to another layer or into the processing solution,
In order to avoid unfavorable photographic effects, it is recommended to copolymerize monomers having at least two or more ethylenically unsaturated groups (preferably λ to Hiroshi) to form a crosslinked aqueous polymer latex. Especially nice.

The structure of the crosslinked aqueous polymer latex is preferably a structure represented by the following general formula (II).

(II) 几1 EL('4 In the formula, A, 几 , 几, , R3,) R4, L, and X have the same meanings as in the general formula (1). In general formula (II), y is from 10 to tamol, preferably 10
- There are 23 momoles.

2 is o, i to 30 moles, preferably / to 20 moles.

B is a structural unit obtained by copolymerizing a copolymerizable monomer having at least λ ethylenically unsaturated groups. Examples of B include ethylene glycol dimethacrylate, diethylene glycol dimethacrylate, neotin glycol dimethacrylate, tetramethylene glycol dimethacrylate, pentaerythritol tetramethacrylate, trimethylolpropane trimethacrylate,
Polyethylene glycol diacrylate, diethylene glycol diacrylate, neointylene glycol diacrylate, tetramethylene glycol diacrylate, trimethylolpropane triacrylate, allyl methacrylate, allyl acrylate, diallyl phthalate,
Methylenebisacrylamide, methylenebismethacrylamide, trivinylcyclohexane, divinylbenzene, N.

N-bis(vinylbenzyl)-N,N-dimethylammonium chloride, N,N-diethyl-N-(methacryloyloxyethyl)-N-(vinylbenzyl)ammonium chloride, N,N,N/.

N'-tetraethyl-N,N'-bis(vinylbenzyl)-p-xylylene diammonium dichloride)", N,
N'-bis(vinylbenzyl)-1-! J ethylene diammonium cyclo IJ)-1N, N, N/.

Examples include N/-tetrabutyl-N, N/-bis(vinylbenzyl)-ethylenediammonium dichloride, and the like. Among these, divinylbenzene and trivinylcyclohexane are particularly preferred from the viewpoint of hydrophobicity, alkali resistance, and the like.

Compound example x:y: z==l17. J:! 7. j:jy:z=ri! :3 x: y:Z=IAj: Hiroj: 10y:z=ri0
:10 x:y=zo:t.

The amount of the mordant to be added is 0.000000000000000000000000000000000000000000000000000000000000000000,000 cation sites per mol 1 mole of the total dye in the light-sensitive material. / or more, preferably 0. J~100. Preferably 0. j～3
It is 0.

Mordants can be added to both the photosensitive layer and the non-photosensitive layer, but
It is preferable to add a non-photosensitive layer between the photosensitive layer and the support.

Other examples of mordants include JP-A No. 7-13-3J, JP-A No. 1relO, and U.S. Pat.

It is also possible to use polymers containing residues formed by the reaction of ketones with aminoguanidine derivatives, such as those described in No. 112.114, No. 7110.221.

■) ■) X) X) x:y: H3 z=/J', j:Ir0 (of small and medium ≧ Medium d φ hmm ○　　　　　　　　Pattern of to Li During ~ The 8th BaX x +/ X ox country ta　　　ψ Also Same　ψ -ノ X small and medium ■ , Q β・　9 ? -22 ＞−ri and Chinese engineering Same as certain Shin　　　　　　h to.

Tanaka Ko- ψ= A dye having absorption in the visible region can be included in the light-sensitive material of the present invention.

Preferably, the total dye concentration is in a layer closer to the support than the photosensitive layer.
It is better to include 4 or more. Preferably, it is contained in the same layer as the mordant in an amount equal to or more than toes of the total dye.

Specifically, the dyes include the following compounds. (However, it is not limited to this.) Specific example dye-7 -3! - H2UH28 (JaK CH2CH2SO3
ni2 2r) ＼
＼の♀ １）
C) Ta
.

N” ~ Zz town
2!4 town) ￥ Sen Sen z ~
臥Cri
C three
SZ on the doo.

Typical supports used in the photosensitive material of the present invention include cellulose nitrate film, cellulose acetate film, polyvinyl acetal film, polystyrene film, polyethylene terephthalate film, and others. Examples include polyester, glass, paper, metal, wood, etc.

Next, other structures of the silver halide photographic material of the present invention will be described.

The silver halide grains in the silver halide photographic emulsion used in the present invention have regular (reg) shapes such as cubes and octahedrons.
It may have an irregular crystal shape, such as a spherical or plate-like crystal shape, or a composite shape of these crystal shapes. It may also consist of a mixture of particles of various crystalline forms.

These photographic emulsions are P. Chem by Glafkides
ie. et Physique Photograp
hique (published by Paul Monte 1, 1947), G. F'.

Photographic Emulsi by Duffin
on Chemistry (The Focal4A
R-Press, 1996), V, L, Zelikm
Making and Coatin by anet al
gPhotographic Emulsion (
It can be prepared using the method described in The Focal Press (published by / Hirotoshi Rioto). That is, any of the acidic method, neutral method, annimore method, etc. may be used, and the method for reacting the soluble silver salt with the soluble halogen salt may be a one-sided mixing method, a simultaneous mixing method, a combination thereof, etc. .

Proteins such as gelatin and casein can be used as binders for the photographic layer.

Gelatin referred to herein refers to so-called lime-processed gelatin, acid-processed gelatin and enzyme-processed gelatin. As the gelatin, gelatin containing a high molecular weight component described in JP-A-62-J'7/J2 is preferred.

Further, the photographic light-sensitive material of the present invention has a photographic constituent layer containing U.S. Pat.

72, Japanese Patent Publication No. 4T7-6.331, etc., may be included.

Although the silver halide emulsion can be used without chemical sensitization as a so-called primi we emulsion, it is usually chemically sensitized. For chemical sensitization, the Glafkides or Zeli
The book by Kman et al. or edited by H. Frleser, Die G.
rundlagen derPhotography
schen Prozesse mit8i1berh
alogeniden (Akademische Ver.
The method described in lagsgesellschaft, /ri+, r) can be used.

That is, a sulfur sensitization method using a sulfur-containing compound or activated gelatin that can react with silver ions, a reduction sensitization method using a reducing substance, a noble metal aggravation method using gold or other noble metal compounds, etc. may be used alone or in combination. Can be done. As the sulfur sensitizer, thiosulfates, thioureas, thiazoles, rhodanines, and other compounds can be used, and specific examples thereof include US Pat. No. 1,574.944,
2.410,689, 2,278,947, 2.7
No. 28,668 and No. 3,656,955. As the reduction sensitizer, stannous salts, amines, hydrazine derivatives, formamidine sulfinic acid, silane compounds, etc. can be used. For noble metal sensitization, in addition to kumquat salts, complex salts of metals in group I of the periodic table, such as platinum, iridium, and palladium, can be used.

The light-sensitive material of the present invention may contain various compounds as antifoggants or stabilizers.

Namely, azoles such as benzothiazolium salts, nitroindazoles, triazoles, hensitriazoles, benzimidazoles (especially nitro- or halogen 1ZIA); heterocyclic mercapto compounds such as mercaptothiazoles, mercaptobenzodeazoles, Mercaptobenzimidazoles, mercaptothiadiazoles, mercaptotetrazoles (especially 1
-phenyl-5-mercaptotetrazole), mercaptopyridines; the above-mentioned heterocyclic mercapto compounds having a water-soluble group such as a carboxyl group or a sulfone group; thioketo compounds such as oxazolinthione; azaindenes such as tetraazaindenes; 4-hydroxy substitution (1,3,3a.

7) Many compounds known as antifoggants or stabilizers can be added, such as (tetraazaindenes); henzenethiosulfonic acids: henzenesulfins; and the like.

For more detailed examples of these and how to use them, see, for example, U.S. Patent No. 3,954,474;
982,947, 4.021.248, or Japanese Patent Publication No. 52-28゜660 can be referred to.

Hardening agents include mucochloric acid, formaldehyde, dimethylol urea, glyoxal, succinaldehyde,
aldehyde such as glutaraldehyde; divinylsulfone, methylene bismaleimide, 5-acetyl-1,3-diacryloyl-hexahydro-5-) lyazine, 1,3゜5-triacryloyl-hexahydro-
5-t+J azine, 1,3.5-)rivinylsulfonyl-hexahydro-8-triazine bis(vinylsulfonylmethyl)ether, 1,3-bis(vinylsulfonylmethyl)propanol-2, bis(α- Active vinyl compounds such as vinylsulfonylacetamido)ethane; 2
, 4-dichloro-6-hydroxy-5-)riazine sodium salt; N-carbamoylpyridinium salts ((1-morpholinocarbonyl-
(3-pyridinio)methanesulfonate, etc.), haloamidinium salts (1-(1-chloro-1-pyridinomethylene)pyrrolidinium, 2-naphthalenesulfonate, etc.), and inorganic compounds such as chrome light pan.

The photographic emulsion layer or other constituent layers of the light-sensitive material of the present invention may contain various additives such as coating aids, antistatic properties, improving slipperiness, dispersing emulsions, preventing adhesion, and improving photographic properties (for example, accelerating development, increasing contrast, and sensitizing). For this purpose, surfactants other than those of the present invention may be included.

For example, saponins (steroids), alkylene oxide derivatives (e.g. polyethylene glycol, polyethylene glycol/polypropylene glycol condensates, polyethylene glycol alkyl ethers or polyethylene glycol alkyl aryl ethers, polyethylene glycol esters, polyethylene glycol alkyl ethers, polyalkylene glycols) Nonionic surfactants such as alkylamines or amides, polyethylene oxide adducts of silicone), glycidol derivatives (e.g. alkenylsuccinic acid polyglycerides, alkylphenol polyglycerides), fatty acid esters of polyhydric alcohols, and alkyl esters of sugars. Agent; alkyl carboxylate, alkyl sulfonate, alkylbenzene sulfonate, alkylnaphthalene sulfonate, alkyl sulfate, alkyl phosphate, N-acyl-N-alkyl tauric acid,
Anions containing acidic groups such as carboxy groups, sulfo groups, phospho groups, sulfate ester groups, phosphate ester groups, etc. such as sulfosuccinates, sulfoalkylpolyoxyethylene alkylphenyl ethers, polyoxyethylene alkyl phosphates, etc. Surfactants; amphoteric surfactants such as amino acids, aminoalkyl sulfonic acids, aminoalkyl sulfates or phosphates, alkyl betaines, amine oxides; alkylamine salts, aliphatic or aromatic quaternary ammonium salts, Cationic surfactants such as heterocyclic quaternary ammonium salts such as pyridinium, imidazolium, and phosphonium or sulfonium salts containing aliphatic or heterocycles can be used.

The photographic emulsions of this invention may be spectrally sensitized with methine dyes and others. The dyes used include cyanine dyes,
Included are merocyanine dyes, complex cyanine dyes, complex merocyanine dyes, holopolar cyanine dyes, hemicyanine dyes, styryl dyes, and hemioxonol dyes. Particularly useful dyes are those belonging to the cyanine dyes, merocyanine dyes and complex merocyanine dyes. Any of the nuclei commonly used for cyanine dyes can be used as the basic heterocyclic nucleus for these dyes. That is, pyridine nucleus, oxazoline nucleus, thiazoline nucleus, pyrrole nucleus, oxazole nucleus, thiazole nucleus, selenazole nucleus, imidazole nucleus, tetrazole nucleus, pyridine nucleus, etc.;
A nucleus in which an alicyclic hydrocarbon ring is fused to these nuclei; and a nucleus in which an aromatic hydrocarbon ring is fused to these nuclei, that is,
Indolenine nucleus, henzindolenine nucleus, indole nucleus, henzoxazole nucleus, naphthoxazole nucleus, benzothiazole nucleus, naphthothiazole nucleus, benzoselenazole nucleus, benzimidazole nucleus, quinoline nucleus, etc. are applicable. These nuclei may be substituted on carbon atoms.

Merocyanine dyes or composite merocyanine dyes include a pyrazolin-5-one nucleus, a thiohydantoin nucleus, and a 2-thioxazolidine-2 nucleus having a ketomethylene structure.
, 4-dione nucleus, thiazolidine-2□ 4-dione nucleus,
A 5- to 6-membered heterocyclic nucleus such as a rhodanine nucleus or a thiobarbic acid nucleus can be applied.

(Examples) The present invention will be further explained below with reference to Examples and Comparative Examples, but the present invention is not limited to these Examples.

(Example-1) (1) Preparation of photosensitive silver halide emulsion Potassium bromide, potassium iodide, and silver nitrate were added to an aqueous gelatin solution with vigorous stirring, and silver iodobromide in the form of a thick plate with an average grain size of 1 μm was prepared. (average iodine content 10 mol%) was prepared. Thereafter, it was washed with water by the usual precipitation method, Dye-/ was added, and then chemical sensitization was carried out by the gold/sulfuric acid sensitization method using IJium, and photosensitive silver iodobromide emulsion A=
I got it. A 0.7 μm thick plate-shaped silver halide emulsion B (average iodine content of more than 2 moles) was prepared in the same manner as silver halide emulsion A, except that the amount of potassium iodide and the preparation temperature were completely adjusted.

(2) Preparation of coating sample M + n = 32 / 0 ■ / on the top layer of the bag
m22αθ 60■/fi2 Silicon oxide! On a triacetylcellulose support containing mf/m2, each layer of the following formulation was simultaneously applied sequentially from the support side to prepare samples / to //.

(Bottom Ni) Binder; Gelatin-//? /m2 Coating aid: Poly p-styrene sulfonic acid potassium salt 10.0η/m2 (antihalation layer) Binder: Gelatin-/ /f/m2 Mordant: Dyes listed in Table 1:
Listed in Table 1 (Intermediate/i) Binder: Gelatin-/0. ≠? /m2 Coating aid: Poly p-styrene sulfonic acid potassium salt 3.3■/fi2-jter5r- (emulsion layer -/) Coating silver amount: Emulsion B /, rf/m2 Binder: Gelatin-22/m2 Sensitizing dye: Dye-/, 2. / 'IN
I/Ag/S' additive: Cl8H350(-CH
2CH20歂H ゆ、l'flli/kg/? Coating aid: Poly-p-styrene sulfonic acid potassium salt! θη/m2 hardener:/,
λ-bis(vinylacetamido)ethane 4tj■/fi2 (emulsion layer--2
) Coated silver amount: Emulsion A gf/m2 Dextran: Average molecular weight/60,000/, ≠ f/m2 Binder: Gelatinko Hiroshi, 2f/m2 Sensitizing dye: Dye-/λ, /■/kg/ Additives:
Cl8H350+CH2CH2O wing Hj, lr■/
Ag/Y -+0- Trimethylolpropane Hiro, 2117/m2 Coating aid: Poly p-styrene sulfonic acid potassium salt 1001nf/m2 Sensitizing dye: (Surface protective layer) Binder: Gelatin-j O, 79/m2 Veggie agent: 3H7 C6F17SO2NCH2COOK 2
yng/m2 Coating aid: Matting agent: Polymethyl methacrylate fine particles (average particle size 3 μ) 0.73 cape/fi2 1 -2 μ, l Yus -J /j, Ko ★JP-A-Sho tλ
Results of measurement according to the method described in No. 17-17-52 (3) Sensitometry These samples were stored at a temperature and humidity of t-30'C/jlRH for 3 days after coating. Each sample was tested in the following manner.

(+) Measurement of Sensitivity Each sample was exposed to tungsten light of 00 lux through an optical wedge for 7,770 seconds, and then developed for 7 days using the developer shown below in a CO□QC.

The photographic sensitivity of each fixed, washed, and dried sample was measured using the same method at a constant density (optical density of 0°2) higher than the fog density.

These results are shown in Table 1.

Developer Metol 22Sodium Sulfite 1oot Hydroquinone
ztvolax/1 (2Q
Add 2f water
/Fixer=Fujifix (manufactured by Fujisha $Ny Film Co., Ltd.) (11) Measurement of MTF MTF is ≠00×λ after the same development process as in (1)
It was measured with a μ2 anno-ξ-ture. The evaluation was quantified using the spatial frequency at which the MTF value was 0.3.

Regarding MTF, T. H. James (T, H
, James) edited by The Theory of the Photographic Process.
the PhotographyCProcess
) (/ri77, Matsukumi y y (Macmilian)
), pp. 522-411.

(m) After developing in the same manner as in (1), residual color was visually evaluated.

A: Good B: Somewhat good C: Somewhat bad D: Bad Ichi6hiro Mordant: E-/ Latex dye-r Dye-27 -6t - Using the residual color improving agent of the present invention as shown in Table 1 It can be seen that the residual color of the sample can be improved without impairing sensitivity. However, the effect is more pronounced when a latex mordant is used.

Patent applicant: Fuji Photo Film Co., Ltd. t71 Procedural amendment

Claims (1)

[Scope of Claims] 1) A photosensitive material having at least one layer containing a mordant and a dye on at least one side of a support, and containing a water-soluble ionic polymer on the same side as the layer. material. 2) The photosensitive material according to claim 1, wherein the mordant is a polymer latex.