JPS61236542A - Silver halide photographic sensitive material - Google Patents

Abstract

PURPOSE:To obtain the titled material having improved film characteristics of the hydrophilic colloidal layer by incorporating a copolymer latex composed of a monomer contg. a specific sulfonic acid group or its salt and an another monomer to the hydrophilic colloidal layer. CONSTITUTION:The titled material is prepared by incorporating the copolymer latex composed of a monomer shown by the formula wherein R1 is H or CH3 group, R2 and R3 are each H, 1-20C alkyl or an aryl group, a total carbon number of R2 and R3 groups is >=3, M is a cation such as an alkaline metal ion and an ammonium ion, and an another ethylenic monomer such as (meth) acrylate and a glycidyl methacrylate etc. to the hydrophilic colloidal layer such as a silver halide emulsion layer. By constituting the titled material as mentioned above, the titled material having improved film characteristics such as a devitrification phenomenon, a dimensional stability and a scratch strength etc., without affecting the photographic characteristics, is obtd.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a silver halide photographic material.
The present invention relates to a silver halide photographic material having a hydrophilic colloid layer with improved film properties.

[Background of the Invention II] Hydrophilic colloids generally used for producing photographic light-sensitive materials are required not only to have no adverse effect on photographic sensitivity characteristics but also to have specified strength in terms of film properties. . Therefore, when coating a hydrophilic colloid layer such as a silver halide emulsion layer, intermediate layer, or protective layer on a support, a polymer latex made by polymerizing various monomer compounds is conventionally contained in the hydrophilic colloid layer. Various attempts have been made to improve the physical properties of the formed aqueous colloid films, such as dimensional stability, scratch strength, flexibility, pressure resistance, and drying properties.

For example, the vinyl acetate polymer latex of U.S. Pat. No. 2,376.005, U.S. Pat. No. 3,325.
Polymer latex of alkyl acrylate of No. 286, n-butyl acrylate of Japanese Patent Publication No. 45-5331,
Polymer latex of ethyl acrylate, styrene, butadiene, vinyl acetate, acrylonitrile, etc., polymer latex of alkyl acrylate, acrylic acid, sulfoalkyl acrylate of JP-B No. 46-22506, 2-acrylamide of JP-A-51-130217
Polymer latexes of 2-methylpropanesulfonic acid and the like have been used for the above purpose.

However, when these polymer latexes are mixed with an aqueous solution of gelatin, which is a hydrophilic colloid, or in the presence of salts, some of these polymer latexes tend to aggregate or precipitate, resulting in deterioration of the transparency of the hydrophilic colloid film. Some types of polymer latexes also have drawbacks such as the occurrence of devitrification phenomenon and adverse effects on photographic properties such as sensitivity, fog, gradation, and progress of development. Furthermore, since a large amount of emulsifier is used for dispersing these polymer latexes, this also causes deterioration of the physical properties of the hydrophilic colloid film.

On the other hand, JP-A-54-133324, JP-A-56-1904
No. 3 discloses poly7-latex which can be synthesized by reducing the amount of emulsifier while being an antistatic agent, but these polymer latexes do not satisfy both good film properties and good gelatin compatibility of the polymer latex. In particular, a polymer latex containing 20% by weight or more of an ethylenic monomer compound having at least one free phosphoric acid group or its salt described in JP-A-54-133324 is a hydrophilic colloid group. The physical properties of the film were significantly impaired, and the compatibility with gelatin, a hydrophilic colloid, was not improved.

[Object of the Invention] The present invention has been made in order to eliminate the above-mentioned drawbacks, and the first object of the present invention is to provide a structure that does not adversely affect photographic performance, does not cause devitrification phenomenon, and has dimensional stability. An object of the present invention is to provide a silver halide photographic material having a hydrophilic colloid layer with improved film properties such as hardness and scratch strength. A second object of the present invention is to provide a polymer latex that is sufficiently stable even when incorporated into a hydrophilic colloid layer of a silver halide photographic light-sensitive material.

[Structure of the Invention] The above object of the present invention is to provide a halogenated polymer latex having repeating units derived from a monomer compound represented by the following general formula (1) in at least one hydrophilic colloid layer. This is achieved using silver photographic materials.

General formula (1) In the formula, R1 represents a hydrogen atom or a methyl group, and R″2
．． and R3 are each a hydrogen atom and a carbon atom number of 1 to 20
represents an alkyl group or an aryl group.

However, the total number of carbon atoms of Rz and R3 is 3 or more. M represents a cation.

[Specific Structure of the Invention] In the general formula (1) of the present invention, R2 and R3,
The alkyl group having 1 to 20 carbon atoms represented by J may be branched or straight chain, and examples thereof include methyl group, ethyl group, propyl group, butyl group, octyl group, dodecyl group, pentadecyl group, eicosyl group, etc. It will be done. The alkyl group represented by R2 and R3 is preferably an alkyl group having 1 to 10 carbon atoms. R2 and R3
Examples of the aryl group represented by include a phenyl group, and this aryl group may be substituted with an alkyl group, a hydroxy group, or a halogen atom.

In the above general formula (1), examples of the cation represented by M include alkali metal ions, alkaline earth metal ions, ammonium ions, and quaternary ammonium salt ions.

Below, in the margins, typical specific examples of monomer compounds used in the present invention are shown. S03Na C111C11 1H37cH.

M-15cH3 Hs M-16c mountain CH2=C M-17CH.

CH2=CHs M-18cH3 M-19c The monomer compound represented by the general formula (1) used in the present invention (hereinafter referred to as the monomer compound of the present invention) is:
The latex-forming polymer used in the present invention (hereinafter referred to as the polymer of the present invention) is obtained by copolymerizing the monomer compound with another ethylenic monomer compound that is copolymerizable with the monomer compound.

In the polymer of the present invention, one or more monomer compounds of the general formula (1) can be used together with other copolymerizable ethylenic monomer compounds.

Other ethylenic monomer compounds copolymerizable with the monomer compound of the present invention that can form the polymer of the present invention include acrylic esters, methacrylic esters, vinyl esters, olefins, styrenes, and glycidyl esters. The polymer of the present invention preferably contains at least 30% by weight of at least one monomer compound selected from the following as a constituent component from the viewpoint of compatibility with the hydrophilic colloid layer.

More specifically, these monomer compounds are as follows:
Examples of acrylic esters include methyl acrylate,
Ethyl acrylate, n-propyl acrylate, isopropyl acrylate, n-butyl acrylate, isobutyl acrylate, 5ec-butyl acrylate, t
ert-butyl acrylate, amyl acrylate, hexyl acrylate, 2-ethylhexyl acrylate, octyl acrylate, tert-octyl acrylate, 2-chloroethyl acrylate, 2-bromoethyl acrylate, 4-chlorobutyl acrylate, cyanethyl acrylate, 2- Acetoxyethyl acrylate, dimethylaminoethyl acrylate, benzyl acrylate, methoxybenzyl acrylate, 2-chlorocyclohexyl acrylate, cyclohexyl acrylate, furfuryl acrylate, tetrahydrofurfuryl acrylate, phenyl acrylate, 2-hydroxyethyl acrylate, 5-hydroxypentyl Acrylate, 2,2-dimethyl-3-hydroxypropyl acrylate, 2-methoxyethyl acrylate, 3-
Methoxybutyl acrylate, 2-ethoxyethyl acrylate, 2-iso-propoxy acrylate, 2-
Butoxyethyl acrylate, 2-(2-methoxyethoxy)ethyl acrylate, 2-(2-butoxyethoxy)ethyl acrylate, ω-methoxypolyethylene glycol acrylate (number of moles added n-9), 1-bromo 2-methoxyethyl acrylate, Examples include 1.1-dichloro-2-ethoxyethyl acrylate.

Examples of methacrylic acid esters include methyl methacrylate, ethyl methacrylate, n-propyl methacrylate, isopropyl methacrylate, n-butyl methacrylate, isobutyl methacrylate, 5ec-butyl methacrylate, tert-butyl methacrylate,
amyl methacrylate, hexyl methacrylate, cyclohexyl methacrylate, benzyl methacrylate,
Chlorobenzyl methacrylate, octyl methacrylate, sulfopropyl methacrylate, N-ethyl-N-
Phenylaminoethyl methacrylate, 2-(3-phenylpropyloxy)ethyl methacrylate, dimethylaminophenoxyethyl methacrylate, furfuryl methacrylate, tetrahydrofurfuryl methacrylate, phenyl methacrylate, cresyl methacrylate,
Naphthyl methacrylate, 2- and droxyethyl methacrylate, 4-hydroxybutyl methacrylate, triethylene glycol monomethacrylate, dipropylene glycol monomethacrylate, 2-methoxyethyl methacrylate, 3-methoxybutyl methacrylate, 2
-acetoxyethyl methacrylate, 2-acetoacetoxyethyl methacrylate, 2-ethoxyethyl methacrylate, 2-iso-propoxyethyl methacrylate, 2-butoxyethyl methacrylate, 2-(2-methoxyethoxy)ethyl methacrylate, 2-(2-ethoxyethoxy) ) Ethyl methacrylate, 2-(2-butoxyethoxy)ethyl methacrylate, ω-methoxypolyethylene glycol methacrylate (number of moles added n
-6), allyl methacrylate, methacrylic dimethylaminoethyl methyl chloride salt, and the like.

Examples of vinyl esters include vinyl acetate, vinyl propionate, vinyl butyrate, vinyl isobutyrate, vinyl caproate, vinyl chloroacetate, vinyl methoxy acetate, vinyl phenylacetate, vinyl benzoate, vinyl salicylate, etc. Can be mentioned.

Examples of olefins include dicyclopentadiene, ethylene, propylene, 1-butene, 1-pentene,
Examples include vinyl chloride, vinylidene chloride, isoprene, chlorobrene, butadiene, 2,3-dimethylbutadiene, and the like.

Examples of styrenes include styrene, methylstyrene, dimethylstyrene, trimethylstyrene, ethylstyrene, isopropylstyrene, chloromethylstyrene, methoxystyrene, acetoxystyrene, chlorstyrene, dichlorostyrene, bromstyrene, trifluoromethylstyrene, vinyl Examples include benzoic acid methyl ester.

Glycidyl esters such as glycidyl acrylate and glycidyl methacrylate can be mentioned.

The polymer of the present invention may be copolymerized with ethylenic monomer compounds other than those mentioned above within a range that does not impair the effects of the present invention. Examples of these monomer compounds include acrylamides, acrylic acid, methacrylic acid, crosslinkable Examples include monomer compounds.

In the polymer of the present invention, the content of the monomer compound of the general formula (1) of the present invention is preferably 0.1 to 40% by weight,
More preferably, it is 0.5 to 30% by weight.

If the content of the monomer compound of the present invention exceeds 40% by weight, the hydrophilicity of the polymer of the present invention will increase, making it difficult to obtain stability as a latex, and if the content is less than 0.1% by weight, the effects of the present invention will be diminished. You won't be able to get enough.

The polymer latex of the present invention can be easily produced by a known method. For example, it can be easily produced by a method of redispersing the polymer of the present invention obtained by emulsion polymerization, solution polymerization, or bulk polymerization (hereinafter referred to as redispersion method). The preferred polymerization method is emulsion polymerization.

In the emulsion polymerization method, the reaction temperature is 20 to 180°C, more preferably 40 to 100°C, and water and
~50% by weight of a monomer compound (containing a predetermined proportion of the monomer compound of the present invention and another ethylenic monomer compound copolymerizable with the monomer compound) and 0.05 to 5% by weight based on the monomer compound. Polymerization initiator and 0.1-2
It is carried out using 0% by weight of emulsifier. At this time, the polymerization initiator, concentration, reaction temperature, reaction time, etc. can be varied widely and arbitrarily depending on the purpose. Although the emulsifier can generally be synthesized without using it, it may be used in view of the stability of the resulting polymer latex over time, its compatibility with hydrophilic colloids, etc.

Examples of the polymerization initiator used in the emulsion polymerization method of latex of the polymer of the present invention include per[2 potassium, ammonium persulfate, per1i! Persulfates such as sodium chloride, 4,4
'-Sodium azobis-4-cyanovalerate, 2.2'
- Water-soluble azo compounds such as azobis(2-amidinopropane) hydrochloride and hydrogen peroxide can be used.

The molecular weight of the latex of the polymer of the present invention is from 2.000 to
i, ooo, ooo are preferable, more preferably 5.0
00~soo, ooo. Particle size is 0.01~1μ-
is preferable, and more preferably 0.01 to 0.5 μm.

In addition, in the present invention, the molecular weight is a value expressed as a number average molecular weight (hereinafter expressed as Mn) in terms of standard polyethylene using Gel Perme Co., Ltd. O Madrography HLC-802A [manufactured by Toyo Soda Co., Ltd.], and the particle size Coulter N
4 (Coulter fj).

Specific representative examples of the polymer latex of the present invention are shown below in the margins, but the present invention is not limited thereto.

Exemplary polymer latex x:y=99:I Mn=100.00O x:y=89:11 Mn=150,000 X:y=98:2 Mn=33,000 x:y=95:5 Mn=35, 000 x:y=90:10 Mn=30,000 X:y=”80:20 Mn=25,000 x:y=80:20 Mn=28.00O
=46,000 -9ct x:y:z=30:30:40 Mn=20.000 L-10cH3 2H5 x: y == 90: 10 Mn=40,000 L 11 (output x:y=80
:20 Mn=28,000 L 12 cH3X:y=
80:20 Mn=27.00O L-13c mountain ■ x:y=70:30 Mn = 27,000 L-14c le x:y:z==80:5:15 Mn=100,000 L-15CHs x :y:z=90:1:9 Mn=180,000 L-160Hs x:y=90:10 Mn=61,000 L-17CB.

Mn=88,000 L -18cH3 x:y=9s:s Mn=78.000 x:y:z=95:4:1Mn=
113,000 Typical synthesis examples of the polymer latex of the present invention are shown below.

Synthesis Example 1 Distilled water 3601 degassed with N2 gas in 11 full pens
(Pour 1 and raise the temperature to 80°C. To this, 0.279% of ammonium persulfate dissolved in 5J of distilled water is quickly added, and 89.1% of ethyl acrylate is added thereto.

A mixture of 0.9 G of the monomer compound (M-1) of the present invention was added dropwise over about 1 hour, and after the dropwise addition was completed, the mixture was further stirred for 4 hours and then allowed to react. After the reaction was completed, unreacted monomer compounds were removed by steam distillation for 1 hour to obtain the desired polymer latex (L-1).

Particle size -o, os μi, Mn -ioo, oo
.

Synthesis Example 2 360 ml of distilled water degassed with N-L gas in a 1.l full pen
11 and emulsifier (a-3) 6Q and (n-4) 1.2
Add Q and raise the temperature to 80°C. 0.27 g of ammonium persulfate dissolved in 511 distilled water was quickly added thereto, and 80 g of ethyl acrylate 1 mixture of monomer compounds of the present invention (M-2>10a) was added dropwise thereto over about 1 hour, and after the addition was completed, further The reaction was continued by stirring for 4 hours. After the reaction was completed, unreacted monomer compounds were removed by steam distillation for 1 hour, and the desired polymer latex (L-2>
I got it.

Particle size -0.11μm, Mn -150,000
Synthesis Example 3 N to the first officer's Kolben? Distilled water degassed with gas 36011
and raise the temperature to 80℃. To this, 0.271:1 ammonium persulfate dissolved in 511 distilled water was quickly added, and 72 g of butyl acrylate and a mixture of the monomer compound of the present invention (M-11>13.5G) were added dropwise over about 1 hour. After the completion of the dropwise addition, the mixture is stirred for an additional 4 hours to react.After the completion of the reaction, steam distillation is performed for 1 hour to recover unreacted monomers, and the mixture is cooled to room temperature to obtain the desired polymer latex (L-14).

Particle size 0.20 μra, Mll -100,000
The polymer latex of the present invention can be used in all photographic constituent layers 1, such as silver halide emulsion layers, interlayers, protective layers, antihalation layers, backcoat layers, etc., that use hydrophilic colloids in silver halide photographic light-sensitive materials. .

The polymer latex of the present invention is preferably 80% by weight or less, more preferably 5% by weight or less based on the hydrophilic colloid. III
% to 50% by weight, approximately o, oig per m2
~5. Oq is preferable, more preferably 0.1a to 1,
It is zero.

As the hydrophilic colloid used in the present invention, it is advantageous to use gelatin, gelatin derivatives, graft polymers of gelatin and other polymers, other proteins,
Hydrophilic colloids such as sugar derivatives, cellulose derivatives, synthetic hydrophilic polymeric substances such as monopolymers or copolymers can also be used.

Examples of gelatin include lime-processed gelatin, acid-processed gelatin, Bull, Soc, Sci, and Phot.

Enzyme-treated gelatin as described in Japan, No., p. 16.30 (1966) may be used, and gelatin hydrolysates and enzymatically decomposed products may also be used.

Gelatin derivatives can be obtained by reacting gelatin with various compounds such as acid halides, acid anhydrides, isocyanates, bromoacetic acid, alkanesultones, vinyl sulfonamides, maleimide compounds, polyalkylene oxides, and epoxy compounds. The one obtained by doing so is used. Specific examples are U.S. Patent Nos. 2.60,928 and 3.
, No. 132,945, No. 3.186,846, No. 3,
312,553, British Patent No. 861,414, 1.
No. 033,189, 1,005,784@, Special Publication No. 4
2-26845, etc.

Preferred examples of proteins include albumin and casein; preferred cellulose derivatives include hydroxyethylcellulose and carboxymethylcellulose sulfate; and preferred sugar derivatives include sodium alginate and densine 6 derivatives.

The graft polymer of gelatin and other polymers may be a single (homo) or copolymer of vinyl monomers such as gelatin, acrylic acid, methacrylic acid, derivatives thereof such as esters and amides, acrylonitrile, styrene, etc. A grafted material can be used. In particular, polymers which are compatible to some extent with gelatin, such as acrylic acid, acrylamide, methacrylamide,
Graft polymers with polymers such as hydroxyalkyl methacrylates are preferred. Examples of these are U.S. Pat. No. 2,763,625, U.S. Pat.
．． No. 956,884, etc.

Typical synthetic hydrophilic polymer substances include polyvinyl alcohol, polyvinyl alcohol partial acetal, and poly-N-
Single or copolymers of vinylpyrrolidone, polyacrylic acid, polymethacrylic acid, polyacrylamide, polyvinylimidazole, polyvinylpyrazole, etc.
For example, West German patent application (OLS) 2,312,7
No. 08, U.S. Patent No. 3,620.751, U.S. Patent No. 3,87
No. 9,205 and Japanese Patent Publication No. 43-7561.

The silver halide emulsion used in the present invention includes any silver halide used in conventional silver halide emulsions such as silver bromide, silver iodobromide, silver iodochloride, silver chlorobromide, and silver chloride. You can use the following.

It is preferable to remove unnecessary soluble salts from the silver halide emulsion used in the present invention after the growth of silver halide grains is completed, but they may remain contained. When removing the salts, Research Disclosure t-(Res
It can be carried out based on the method described in EARCH o 1 S CLOSURE > 17643.

The silver halide emulsion of the present invention may be a mixture of two or more separately formed silver halide emulsions.

The silver halide emulsion of the present invention can be chemically sensitized by conventional methods. That is, a sulfur sensitization method, a selenium sensitization method, a reduction sensitization method, a noble metal sensitization method using gold or other noble metal compounds, etc. can be used alone or in combination.

The silver halide emulsion of the present invention can be optically sensitized to a desired wavelength range using dyes known as sensitizing dyes in the photographic industry. Sensitizing dyes may be used alone, but
You may use two or more types in combination. Along with the sensitizing dye, the emulsion contains a dye that itself does not have a spectral sensitizing effect, or a supersensitizer, which is a compound that does not substantially absorb visible light and enhances the sensitizing effect of the sensitizing dye. Good too.

In addition to the above-mentioned additives, the silver halide photographic material of the present invention also contains matting agents, stabilizers, development accelerators, hardeners, surfactants, anti-staining agents, lubricants, ultraviolet absorbers, and formalin scavengers. -1. Color couplers, antistatic agents, and other various additives useful for photographic materials can be used.

The support used in the silver halide photographic material of the present invention includes α-olefin polymers (e.g. polyethylene,
Flexible reflective supports such as paper laminated with polypropylene (polypropylene, ethylene/butene copolymer), synthetic paper, etc., semi-synthetic or synthetic polymers such as cellulose acetate, cellulose nitrate, polystyrene, polyvinyl chloride, polyethylene terephthalate, polycarbonate, polyamide, etc. These include films made of molecules, flexible supports on which these films are provided with reflective layers, glass, metals, ceramics, etc.

Silver halide photographic materials to which the present invention can be used include black and white photosensitive materials such as black and white photosensitive materials for photography, black and white photosensitive materials for X-RAV, black and white photosensitive materials for printing, color reversal films, color negative films, color positive films and the like. Examples include multilayer color photosensitive materials.

[Specific Effects of the Invention] As explained above, in the silver halide photographic material of the present invention, an ethylenic material having at least one group selected from a carboxyl group, a sulfonic acid group and a salt thereof and an ethylene oxide chain is used. Since the hydrophilic colloid layer contains a polymer latex having repeating units derived from a monomer compound, there is no aggregation or precipitation in the hydrophilic colloid layer, and the compatibility between the hydrophilic colloid and polymer latex is good, resulting in devitrification. The physical properties of the hydrophilic colloid film, such as the dimensional stability, could be improved without causing any phenomena or adversely affecting the photographic properties.

[Examples] The present invention will be specifically explained below using Examples, but the embodiments of the present invention are not limited thereto.

Example 1 To 1 aqueous gelatin solution containing 100 g of gelatin,
Polymer latex L-1 of the present invention (solid content 20% by weight)
) 1 ooml was added, and the state of aggregation after storage at 40° C. for 1 hour and 5 hours was visually determined. The state of aggregation was evaluated in three stages: ◯: no aggregation, △: slight aggregation, and X: aggregate precipitation.

The above polymer latex L-1 is used as L-2 and L-, respectively.
3, L-4, L-5, Shi-10, L-11, L-14,
L-16, L-18, comparative polymer latex (A),
Samples were prepared in the same manner except that the comparative polymer latex (B) was used, and the state of aggregation was determined. The results are shown in Table 1.

Comparative polymer latexes are the following polymer latexes:

The following margins are Comparison polymer latex (A) ←Described in JP-A No. 45-5331] ÷CH2-CH-) ■ COOCzHC 00CzHs, 000 Comparison polymer latex (B) ←Described in JP-A-51-130217] ■ Ha X:y =95:5 Mn=95,000 As is clear from the results in Table 1, the polymer latex of the present invention has good compatibility with hydrophilic colloids and does not form aggregates.

Example 2 4-Hydroxy-6-methyl-1,3,3a in a silver iodobromide gelatin emulsion containing 3 mole percent silver iodide.

After addition of 7-titrazaindene and mucochloric acid, Q
It was coated to give I50u/diλ and used as a control sample.

Samples 13 to 21 were obtained in the same manner except that 5% by weight of the polymer latex shown in Table 2 was added to the control sample, based on the gelatin in the emulsion.

After the above sample was exposed to wedge light and subjected to the development treatment shown below, the effects on dimensional stability, scratch strength, devitrification, and photographic performance before and after the development treatment were examined. The results are shown in Table 2.
show.

[Processing process Temperature ('C) Time (seconds) Development 30 45 constant
25 35Water wash 15
35 Drying 45
The composition of the developer used in Example 20 is shown below.

[Developer composition] Phenidone 0.4g Metol 5g Hydroquinone
1g Anhydrous Sodium Tillite
60g sodium carbonate/H2O549 5-nitroimidazole 100mg potassium bromide 2.5Q Add water to 11 and adjust to pl-110, 20.

However, the dimensional stability, scratch strength, devitrification properties shown in Table 2,
The sensitivity is as follows.

[Dimensional stability] Dimensional stability is expressed by the rate of change in dimension. The rate of dimensional change is determined by the following equation, where the dimension of an exposed sample with a length of 200 mm before processing is X1m, and the dimension after processing is Yll.

Dimensional change rate (%) - ((Y-X) / 200)
According to the X100 industry, a dimensional change rate of 0.01% or less means that there will be no separation in practice.

[Scratch strength] After developing, fixing, and rinsing in the above processing steps, the film surface was scratched with a weighted metal needle while immersed in the rinsing water, and the minimum weight of the metal needle that caused scratches (scratching strength) was determined. Ta.

[Devitrification] A: No reduction in transparency after development B: Slightly milky white C: Slightly milky white A, 8. C was determined visually. Devitrification describes the gelatin compatibility of the polymer latex.

[Sensitivity] Measured with a sensitometer model KS-1 manufactured by Konishiroku Photo Industry Co., Ltd. Kaburi 10. Sensitivity is the reciprocal of the exposure amount given at density 7, and the same-day sensitivity of control sample 1 is taken as 100, and the sensitivity is expressed as specific sensitivity.

Note that the polymer latexes (A) and (B) are the same as those used in Example 1.

Margin Table 2 As is clear from Table 2, the silver halide photographic material samples of the present invention have good dimensional stability, no deterioration in photographic properties, and good devitrification.

Patent applicant: Konishiroku Photo Industry Co., Ltd. Procedural supplement JE spontaneously written) July 1111, 1985

Claims (1)

[Claims] A latex of a polymer having repeating units derived from a monomer compound represented by the following general formula (1),
A silver halide photographic material containing a hydrophilic colloid in at least one layer. General formula (1) ▲There are mathematical formulas, chemical formulas, tables, etc.▼ In the formula, R_1 represents a hydrogen atom or a methyl group, and R_
2 and R_3 are each a hydrogen atom and a carbon atom number of 1 to 2
0 alkyl group or aryl group. However, the total number of carbon atoms of R_2 and R_3 is 3 or more. M represents a cation.