JPH0444027A - Silver halide photographic sensitive material improved in pressure resistance - Google Patents

Abstract

PURPOSE:To obtain excellent pressure resistance in ultra-rapid processing and to allow the silver in the photosensitive material to be effectively developed as well as to obtain hard-contrast images by specifying the weight ratio (Ag/ gelatin) of the silver and gelatin in the hydrophilic colloidal layers on the side contg. silver halide emulsion layers to >=1.0. CONSTITUTION:The decrease of the amt. of the gelatin is required when the rapid processing and the saving of silver are taken into consideration, but the deterioration of the pressure resistance arises generally when the amt. of the gelatin is decreased. The weight ratio of the silver and gelatin in the hydrophilic colloidal layers on the side contg. the silver halide emulsion layers of the silver halide photographic sensitive material with respect to a base is, therefore, specified to >=1.0. The gelatin amt. refers to the total sum of the gelatin amts. of >=1 layers on the side contg. the photosensitive silver halide emulsion layers and the silver amt. is defined for the total silver amt. of the respective layers. The excellent pressure resistance is obtd. even in the ultra-rapid processing in this way and the silver in the photosensitive material is effectively utilized. In addition, hard-contrast images are obtd.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a silver halide photographic material, and more specifically, a silver halide photographic material having ultra-rapid processing suitability and improved pressure resistance, and a processing method. Regarding.

[Background of the invention]

In recent years, in order to cope with the increase in the amount and speed of information as part of the information industry, demands for rapid processing of silver halide photographic materials have become extremely strict even in the printing industry. ■In order to improve work ease and stability,
In contrast to the so-called lithographic development, which has conventionally been commonly used in the development of printed photosensitive materials, rapid access development has come into use, which improves its shortcoming of stability.

In this case, by incorporating a high contrast agent such as a tetrazolium compound or a hydrazine compound into the silver oxide emulsion, it is possible to achieve a high contrast equivalent to that of lithographic development, and to enable development in 20 to 30 seconds. Ta. However, the above-mentioned requirements further include a strong requirement for development time of 20 seconds or less, and of course, deterioration in image quality is not acceptable. On the other hand, in printing, there is work called reducing force, and therefore,
It is not possible to reduce the amount of silver simply to speed up processing.

Therefore, for rapid processing and silver saving, it is important to develop silver halide in a short time without waste and to utilize it effectively. Considering rapid processing and silver saving, it is necessary to reduce the amount of gelatin, but reducing the amount of gelatin generally causes deterioration in pressure resistance.

Traditionally, organic precipitants have often been used for desalting in the production of silver halide photographic materials. It has been found that when an organic precipitant is used, the pressure resistance deteriorates, and this variation has a particularly large effect on silver halide photographic materials containing a tetrazolium compound.

[Purpose of the invention]

In view of the above-mentioned problems, the object of the present invention is to provide a silver halide photographic material that has excellent pressure resistance even in ultra-rapid processing, allows the silver in the material to be effectively developed, and provides high-contrast images. The object of the present invention is to provide a processing method.

[Structure of the invention]

The above-mentioned object of the present invention is to perform coagulation desalting using only an inorganic coagulation precipitant without using an organic precipitant in the production of a silver halide photographic light-sensitive material, and at least one of In a silver halide photographic light-sensitive material containing a tetrazolium compound, the weight ratio of silver to gelatin (Ag/gelatin) in the hydrophilic colloid layer on the side containing the silver halide emulsion layer with respect to the support is 1.0 or more. This was achieved using a silver halide photographic material characterized by the following.

Further, the negative-working silver halide photographic light-sensitive material of the present invention can be processed within a developing time of 19 seconds, and is dry.

It is characterized in that the total dry processing time is 20 seconds to 60 seconds.

Detailed Description of the Present Invention In the present invention, Dry to Dry refers to the total time from when the leading edge of a photosensitive material is inserted into an automatic developing machine, through development, fixing, washing with water, and drying until the leading edge emerges from the automatic developing machine. It is. In other words, the quotient (sec) of the total length of the processing line (m) including various crossing parts divided by the line conveyance speed (m/sec)
, and is characterized in that the value is 60 seconds or less.

Further, the amount of gelatin in the embodiment of the present invention refers to the total amount of gelatin in one or more layers on the side containing the photosensitive silver halide emulsion layer with respect to the support, and the amount of gelatin in the silver halide emulsion layer. It is not limited to. In addition, when a plurality of layers are coated on the same side of the support, the amount of silver is defined based on the total amount of silver in each layer.

Preferred examples of the contrast enhancing agent used in the present invention include tetrazolium compounds, and specific examples of the tetrazolium compounds include general formulas CI)-1, [:I)-2, and CI] described in JP-A-62-11253. We can list the compounds represented by 3.

　■〕

CI) [Eng.] In the formula, Rs, Rt, Ra, R 9+R l□, R ,,
. group, mercaptophenyl group, methoxyphenyl group, etc.), naphthyl group (e.g. α-naphthyl group, β-naphthyl group, hydroxynaphthyl group, carboxynaphthyl group, aminonaphthyl group, etc.), and heterocyclic group (e.g. thiazolyl group, benzothiazolyl group) group, oxazolyl group, pyrimidinyl group, pyridyl group, etc.), and any of these may be a group that forms a metal chelate or a complex. R6 to R1o and R1 are each an allyl group,
Phenyl group, naphthyl group, heterocyclic group, alkyl group (e.g. methyl group, ethyl group, propyl group, butyl group, mercaptoethyl group, mercaptoethyl group, etc.), hydroxyl group, alkylphenyl group, alkoxyphenyl group, carboxyl group or their salt, carboxyalkyl group (e.g. methoxycarbonyl group, ethoxycarbonyl group), amino group (
(e.g., amino group, ethylamino group, anilino group, etc.), mercapto group, nitro group, and hydrogen atom, D represents a divalent aromatic group, and E represents an alkylene group, arylene group, aralalkylene group. xo represents an anion; n represents ] or 2; However, when the compound forms an inner salt, n is l.

Next, specific examples of the cation moiety of the tetrazolium compound used in the present invention will be shown, but the cation moiety of the compound that can be used in the present invention is not necessarily limited to these.

(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-(benzothiazole-2 −il)
-3-phenyl-5-(0-chlorphenyl)-2
H-tetrazolium (T-6) 2.3-diphenyl-2H-tetrazolium (T-7) 2.3-diphenyl-5-methyl-2H-tetrazolium (T-8) 3-(p-hydroxyphenyl)-
5-Methyl-2-phenyl-2H-tetrazolium (
T-9) 2.3-diphenyl-5-ethyl-2
H-tetrazolium (T-10) 2,3-diphenyl-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-(4chlorophenyl)-3-(4
-nitrophenyl) 2H-tetrazolium (T -14) 5-ethoxycarbonyl-2,3-
Di(3-nitrophenyl)-2H-tetrazolium (
T-15) 5-acetyl-2,3-di(p-ethoxyphenyl)-2H-tetrazolium (T-16) 2.5-diphenyl-3=(p-
) reel)-2H tetrazolium (T-17) 2,5-diphenyl-3-(p-
iodophenyl) 2H-tetrazolium (T-18) 2,3-diphenyl-5-(p-
diphenyl)-21(-tetrazolium(T-19) 5-(p-bromophenyl)-2
-Phenyl-3-(2,4,6-)lychlorophenyl)-2H-tetrazolium (T-20) 3-(p-) idroxyphenyl)-5-(pnitrophenyl)-2- Phenyl-2
H-tetrazolium (T-21) 5-(4-cyano)-3-(2-ethoxyphenyl)-2-(4-methoxyphenyl)-2H-tetrazolium (T-22) phenyl)-2,
3-diphenyl-2H-tetrazolium (T-23) 3-(p-acetamidophenyl)
-2,5 diphenyl-2H-tetrazolium (T -24) 5-acetyl-2,3-diphenyl-2H-tetrazolium (T -25) 5-(Flu-2yl)-2,3-diphenyl-2H-tetrazolium ( T-26) 5-(thieso-2yl)-23-diphenyl2H-tetrazolium (T-27) 2.3-diphenyl-5-(pyrid-4yl)2H-tetrazolium (T-28) 2.3-diphenyl -5-(quinol-2yl)2H-tetrazolium (T -29) 2.3-diphenyl-5-(benzoxazol-2yl)-2H-tetrazolium (T~30) 2.3-diphenyl-5- Nitro
2H-tetrazolium (T-31) 2.2', 3.3'-tetraphenyl-5,5'-1°4-butylene-di(2H-tetrazolium) (T-32) 2.2', 3. 3'-
Tetraphenyl-s, 5'-p phenylene-di(2
H-tetrazolium) (T-33) 2-(4,5
-dimethylthiazol-2yl) 3.5-diphenyl-2H-tetrazolium (T-34) 3.5-diphenyl-2-(triazin-2yl-2H-tetrazolium) (T-35) 2-(benzothiazole- 2il)-
3-(4-methoxyphenyl)-5-7 enyl 2
H-tetrazolium (T-36) 2,3-dimethoxyphenyl-5
-Phenyl-2H-tetrazolium (T-37) 2,3.5- ) Lis(methoxyphenyl)2H-tetrazolium (T-38) 2,3-dimethylphenyl-5-phenyl-2H-tetrazolium (T-39) 2.3-hydroxyethyl-5-phenyl 2H-tetrazolium (T-40) 2.3-hydroxymethyl-5-7
enyl 2H-tetrazolium (T-41) 2.3-cyanohydroxyphenyl-5phenyl-2H-tetrazolium (T-42) 2.3-di(p-chlorophenyl)
-5-7enyl-2H-tetrazolium (T -43) 2.3-di(hydroxyethoxyphenyl)-5-phenyl-2H-tetrazolium (T
-44) 2.3-di(2-pyridyl)-5-phenyl-2H-tetrazolium (T-45) 2,3.5-tris(2-pyridyl)-2H-tetrazolium (T-46) 2.3 .5-) Lis(4-pyridyl)-2H-tetrazolium When a tetrazolium compound is used as a non-diffusible compound, a non-diffusible compound obtained by appropriately selecting a cation moiety and an anion moiety is used.

Examples of the anion moiety of the tetrazolium compound used in the present invention include halogen ions such as chloride ion, bromide ion, and iodide ion, acid groups of inorganic acids such as sulfuric acid, nitric acid, and perchloric acid, sulfonic acid,
Acid groups of organic acids such as carboxylic acids, lower alkylbenzenesulfonic acid anions such as p-toluenesulfonic acid anions, higher alkylbenzenesulfonic acid anions such as p-dodecylbenzenesulfonic acid anions, and higher alkyl sulfate ester anions such as lauryl sulfate anions. , dialkyl sulfosuccinate anions such as di-2-ethylhexyl sulfosuccinate anions, polyether alcohol sulfate ester anions such as cetyl polyethenoxy sulfate anions, higher fatty acid anions such as stearate anions, and polymers such as polyacrylate anions. Examples include those with acid roots.

By appropriately selecting the anion moiety and the cation moiety, the non-diffusible tetrazolium compound according to the present invention can be synthesized. The compound according to the present invention synthesized in this way is, for example, 2°3.5-triphenyl-2H-tetrazolium-dioctylsuccinate sulfonate, and after dispersing each soluble salt in gelatin, both In some cases, the oxidizing agent is mixed and dispersed in the gelatin matrix, and in other cases, crystals of the oxidizing agent are synthesized pure, dissolved in a suitable solvent (for example, dimethyl sulfoxide), and then dispersed in the gelatin matrix. If it is difficult to achieve uniform dispersion, emulsification and dispersion using an appropriate homogenizer such as ultrasonic waves or a Manton-Gorlin homogenizer may give good results. In addition, finely dispersed in high boiling point solvents such as dioctyl phthalate,
It is also possible to protect it and disperse it in a hydrophilic colloid layer.

The silver halide emulsion used in the light-sensitive material of the present invention includes conventional silver halide emulsions such as silver bromide, silver iodobromide, silver chloride, silver chlorobromide, and silver chloroiodobromide. Any conventional emulsion can be used, and silver chlorobromide containing 50 mol % or more of silver chloride as a negative-working silver halide emulsion is preferred.

The silver halide grains may be obtained by any of the acid method, neutral method, and ammonia method. The silver halide emulsion used in the present invention may have a single composition, or may contain grains of a plurality of different compositions in a single layer or in a plurality of layers.

Any shape of the silver halide grains according to the present invention can be used. One preferable example is a cube having (1001 plane) as a crystal surface.

Also, U.S. Patent Nos. 4,183,756 and 4,225,6
No. 66, JP-A-55-26589, JP-A-55-42
737, etc., and The Journal on Photographic Science (J, Photgr, Sci.
), 21.39 (1973), etc., particles having shapes such as octahedrons, tetradecahedrons, dodecahedrons, etc. can be prepared and used. Furthermore, particles having twin planes may be used.

The silver halide grains according to the present invention may be of a single shape or may be a mixture of grains of various shapes.

Also, any grain size distribution may be used, and emulsions with a wide grain size distribution (referred to as polydisperse emulsions) may be used, or emulsions with a narrow grain size distribution (referred to as monodisperse emulsions) may be used. They may be used alone or in combination. or,
A polydisperse emulsion and a monodisperse emulsion may be mixed and used.

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

In the present invention, monodisperse emulsions are preferred. As monodisperse silver halide grains in a monodisperse emulsion, the weight of silver halide contained within a grain size range of ±20% around the average grain size is 60% or more of the weight of all silver halide grains. A certain amount is preferable, particularly preferably 70% or more, and still more preferably 80% or more.

Here, the average particle size 7 is the particle size ri when the product of the frequency of particles having particle size ri and rl3 becomes the maximum.
Define.

(3 significant digits, minimum 4 to 5 decimal places.) The grain size here refers to the diameter in the case of spherical silver halide grains, and the diameter in the case of grains with shapes other than spherical. This is the diameter when the projected image is converted into a circular image with a circumferential area.

The particle size can be obtained, for example, by photographing the particles with an electron microscope at a magnification of 10,000 to 50,000 times, and actually measuring the particle diameter or projected area on the print.

(The number of grains to be measured shall be 1000 or more indiscriminately.) Particularly preferred highly monodispersed emulsions of the present invention have a distribution width defined by 20% or less, more preferably 15% or less. belongs to.

Here, the average particle size and particle size standard deviation are determined from rl defined above.

Monodispersed emulsions are disclosed in JP-A-54-48521 and JP-A-58-49.
It can be obtained by referring to No. 938 and No. 60-122935.

Although the photosensitive silver halide emulsion can be used as a so-called unripe (Pr1mltive) emulsion without chemical sensitization, it is usually chemically sensitized.

For chemical sensitization, the Glafkides or Z
The book by Elikman et al. or the book by H. Frleser,
Die
Grundlagen der Photography
ischen Prozesse mat Silbe
rhalogeniden, Akademische
Verlagsgesellschaf5 +968
) can be used.

That is, a sulfur sensitization method using a compound containing sulfur that can react with silver ions or active gelatin, a reduction sensitization method using a reducing substance, a noble metal sensitization method using gold or other noble metal compounds, etc. may be used alone or in combination. Can be used. As the sulfur sensitizer, thiosulfates, thioureas, thiazoles, rhodanines, and other compounds can be used, and specific examples thereof include U.S. Pat. No. 1,574,944,
It is described in No. 2,410,689, No. 2,278,947, No. 2,728,668, and No. 3,656°955. Examples of reduction sensitizers include stannous salts, amines, hydrazine derivatives, formamidine sulfinic acid,
Silane compounds etc. can be used, and specific examples thereof are U.S. Pat.
No. 2,518,698, No. 2,983°609, No. 2,983,610, and No. 2,694,637. For noble metal sensitization, in addition to total complex salts,
Complex salts of metals in group I of the periodic table, such as platinum, iridium, and palladium, can be used, and specific examples thereof include U.S. Pat.
No. 399,083, No. 2,448,060, British Patent No. 618.061, etc.

In addition, there are no particular restrictions on the conditions such as I)H, l)Ag, temperature, etc. during chemical sensitization, but the pH value is 4 to 9, especially 5 to 8.
is preferable, and the pAg value is preferably maintained at 5 to IL, particularly 8 to 1O. Also, the temperature is 40 to 90°C1
Particularly preferred is 45 to 75°C.

In addition to the aforementioned sulfur sensitization and gold/sulfur sensitization, the photographic emulsion used in the present invention can also be subjected to reduction sensitization using a reducing substance, noble metal sensitization using a noble metal compound, or the like.

As the photosensitive emulsion, the above emulsion may be used alone,
Two or more emulsions may be mixed.

When carrying out the present invention, for example, 4-hydroxy-6-methyl-1,3,
Various stabilizers can also be used, including 3a,7-titrazaindene, mercapto-1-phenyltetrazole, 2-mercaptobenzothiazole, and the like.

Furthermore, if necessary, a silver halide solvent such as thioether,
Alternatively, a crystal habit control agent such as a mercapto group-containing compound or a sensitizing dye may be used.

The silver halide grains used in the emulsion of the present invention are formed by cadmium salts, zinc salts, lead salts, thallium salts, iridium salts or complex salts, rhodium salts or complex salts, iron salts, etc. Alternatively, metal ions can be added using complex salts and included inside the particles and/or on the particle surfaces.

As the inorganic precipitant used in the present invention, those known in the art can be used. Specific examples include sodium sulfate, magnesium sulfate, ammonium sulfate, and ammonium nitrate.

The gelatin concentration during coagulation and precipitation is 0.3 to 2.0%, and the ratio of silver to gelatin in terms of silver nitrate is preferably 1.0 or more. The pH during aggregation is 1.0 to 5.0, and the pH during washing is 5.
．． 0 to 7.0 is preferred. When the pn at the time of aggregation is lower than 1.0, when the gelatin concentration is higher than 2%, and when the ratio of silver and gelatin is lower than 4:l, the precipitated particles become too large and the washing efficiency is reduced. In the opposite case, precipitation becomes difficult.

In the silver halide photographic material according to the present invention, the photographic emulsion may be spectrally sensitized to relatively long wavelength blue light, green light, red light or infrared light using a sensitizing dye. The dyes used include cyanine dyes, merocyanine dyes, complex cyanine dyes, complex merocyanine dyes, holopolar cyanine dyes, hemicyanine dyes, styryl dyes, hemioxonol dyes, and the like. Particularly useful dyes are those belonging to the cyanine dyes, merocyanine dyes and complex merocyanine dyes. Any of the basic ring nuclei commonly used for cyanine dyes can be applied to these dyes. That is, pyrroline nucleus, oxazoline nucleus, thiazoline nucleus, pyrrole nucleus, oxazole nucleus,
Thiazole nucleus, selenazole nucleus, imidazole nucleus, tetrazole nucleus, pyridine nucleus, etc. Nuclei in which an alicyclic hydrocarbon ring is fused to these nuclei, and nuclei in which an aromatic hydrocarbon ring is fused to these nuclei, that is, indolenine nucleus, benzindolenine nucleus, indole nucleus, benzoxazole nucleus, naphthoxazole nucleus, benzothiazole nucleus, naphthothiazole nucleus, benzoselenazole nucleus, benzimidazole nucleus,
Quinoline nuclei etc. can be applied. 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, rhodanine nucleus, thiobarbital acid group, etc. can be applied.

The sensitizing dye used in the present invention is used at a concentration equivalent to that used in ordinary negative-working silver halide emulsions. In particular, it is advantageous to use the dye at a concentration that does not substantially reduce the inherent sensitivity of the silver halide emulsion. About 1 OX 10-' to about 5 X 10 of sensitizing dye per mole of silver halide
-' moles are preferred, particularly at concentrations of about 4 X 10-' to 2 X 10-' moles of sensitizing dye per mole of silver halide.

The sensitizing dyes of the present invention can be used alone or in combination of two or more. More specific examples of the sensitizing dyes advantageously used in the present invention include the following.

That is, examples of sensitizing dyes used in the blue-sensitive silver halide emulsion layer include West German Patent No. 929,080, US Patent No. 2,231.658, US Pat. No. 2,519,001, No. 2
, No. 912, 329, No. 3,656゜956, No. 3,
No. 672,897, No. 3,694.217, No. 4.0
No. 25゜349, No. 4,046,572, British Patent 1
, No. 242,588, Special Publication No. 44-14030, No. 5
No. 2-24844, JP-A-48-73137, JP-A No. 61
-172140 etc. can be mentioned. Further, as sensitizing dyes used in green-sensitive silver halide emulsions, for example, U.S. Pat.
, 072,908, 2,739,149, 2゜945.763, British Patent No. 505,979, Japanese Patent Publication No. 48-42172, etc., cyanine dyes, merocyanine dyes or composite cyanine dyes. can be cited as a representative example. Further, as sensitizing dyes used in red-sensitive and infrared-sensitive silver halide emulsions, for example, U.S. Pat.
No. 270,378, No. 2,442,710, No. 2,4
No. 54,629, No. 2,776.280, Special Publication No. 1977
-17725, JP-A No. 50-62425, JP-A No. 61-
Typical examples include cyanine dyes, merocyanine dyes, and composite cyanine dyes such as those described in No. 29836 and No. 60-80841.

These sensitizing dyes may be used alone or in combination. Combinations of sensitizing dyes are often used, especially for the purpose of supersensitization.

Typical examples are U.S. Pat. No. 2,688,545;
No. 977.229, No. 3,397,060, No. 3,5
No. 22,052, No. 3,527゜641, No. 3,61
No. 7,293, No. 3,628,964, No. 3,666
゜480, 3,672,898, 3,679,
No. 428, No. 3,703゜377, No. 3,769,3
No. 01, No. 3,814,609, No. 3, 837.

No. 862, No. 4,026,707, British Patent No. 1,34
No. 4.281, No. 1,507,803, Special Publication No. 1973-
No. 4936, No. 53-12375, JP-A-52-11
06], No. 8, No. 52-109925, etc.

The silver halide photographic material according to the present invention may contain a water-soluble dye in the hydrophilic colloid layer as a filter dye or for various purposes such as preventing irradiation and halation. Such dyes include oxonol dyes, hemioxonol dyes, styryl dyes, merocyanine dyes, anine dyes, azo dyes, and the like. Among them, oxonol dyes; hemioxonol dyes and merocyanine dyes are useful.

In the silver halide photographic material according to the present invention, when dyes, ultraviolet absorbers, etc. are included in the hydrophilic colloid layer, they may be mordanted with a cationic polymer or the like.

Various compounds can be added to the above photographic emulsion in order to prevent a decrease in sensitivity and the occurrence of fog during the manufacturing process, storage or processing of the silver halide photographic light-sensitive material. That is, azoles such as benzothiazolium salts, nitroindazoles, triazoles, benzotriazoles,
benzimidazoles (especially nitro- or halogen-substituted), heterocyclic mercapto compounds such as mercaptothiazoles, mercaptobenzothiazoles, mercaptobenzimidazoles, mercaptothiadiazoles, mercaptotetrazoles (especially l-phenyl-5-mercaptotetrazole) , mercaptopyridines, the above-mentioned heterocycles having a water-soluble group such as a carboxyl group or a sulfone group, mercaptated metal compounds, thioketo compounds such as oxazolinthione, azaindenes such as tetraazaindenes (especially 4-hydroxy substituted (1, 3,38,7
A number of compounds known as stabilizers can be added, such as tetraazaindenes), benzenethiosulfonic acids, benzenesulfinic acids, etc.

An example of a compound that can be used is K. Mees, The Theory on the Photographic Process.
Theory or the Photography
ic Process, 3rd edition, 1966), citing the original literature.

For more detailed examples of these and how to use them, see, for example, U.S. Pat. No. 3,954,474 and U.S. Pat.
No. 947, No. 4,021,248 or Special Publication No. 1972-
The description in No. 28660 can be referred to.

Further, the silver halide photographic material of the present invention has U.S. Pat. No. 3,411,911, U.S. Pat.
912, Japanese Patent Publication No. 45-5331, etc., may be included.

The silver halide photographic material of the present invention may contain the following various additives. Thickeners or plasticizers, such as U.S. Pat.
1.5, Japanese Patent Publication No. 45-15462, Belgian Patent No. 762,833, U.S. Patent No. 3,767.410, Belgian Patent No. 558,143,
For example, styrene-sodium maleate copolymer, dextran sulfate, etc. As a hardening agent, aldehyde-based,
Examples of hardeners and ultraviolet absorbers such as epoxy, ethyleneimine, active halogen, vinyl sulfone, incyanate, sulfonic acid ester, carbodiimide, mucochloric acid, and acyloyl include US Pat. , No. 253,921, British Patent No. 1,309,349
Compounds described in No. 1, etc., especially 2-(2'-hydroxy-5-tertiary butylphenyl)benzotriazole,
2-(2'-hydroxy-3',5'-di-tertiary butylphenyl)benzotriazole, 2-(2-hydroxy-3'-tertiary butyl-5'-butylphenyl)-5-chlorobenzotriazole, 2 -(2'-Hydroquine-3
',5'-di-tertiary butylphenyl)-5-chlorobenzotriazole and the like can be mentioned. moreover,
Coating aids, emulsifiers, permeability improvers for processing liquids, etc.
As a surfactant used as an antifoaming agent or to control various physical properties of photosensitive materials, British Patent No. 5
No. 48.532, No. 1,216,389, U.S. Patent No. 2
, No. 026,202, No. 3,514,293, Special Publication No. 44-26580, No. 43-17922, No. 43-
No. 17926, No. 43-13166, No. 48-207
No. 85, French Painting Patent No. 202,588, Belgian Patent No. 7
Anionic, cationic, nonionic, or amphoteric compounds described in No. 73,459, JP-A No. 48-101118, etc. can be used, but among these, anionic surface active compounds having a sulfonic group are particularly suitable. Agents such as succinic acid ester sulfonates, alkylnaphthalene sulfonates, alkylbenzene sulfonates, and the like are preferred.

In addition, as an antistatic agent, Japanese Patent Publication No. 46-24159,
JP-A-48-89979, U.S. Patent No. 2,882,15
No. 7, No. 2,972.535, Japanese Unexamined Patent Publication No. 48-2078
No. 5, No. 48-43130, No. 48-90391,
There are compounds described in Japanese Patent Publications Nos. 46-24159, 46-39312, 48-43809, and 47-33627.

In the manufacturing method of the present invention, the pH of the coating liquid is 5.3 to 7.
．． It is preferable that it is in the range of 5. For multi-layer coating,
It is preferable that the pH of the coating liquid obtained by mixing the coating liquids for each layer in the ratio of coating amounts is within the above range of 5.3 to 7.5. If the pH is less than 5.3, the progress of hardening is undesirable, and if the pH is greater than 7.5, it is undesirable because it adversely affects photographic performance.

In the light-sensitive material of the present invention, the constituent layers include matting agents, such as silica described in Swiss Patent No. 330,158, glass powder described in French Painting Patent No. 1,296,995, and British Patent No. 1.
, 173,181; inorganic particles such as alkaline earth metals or carbonates of cadmium, zinc, etc.; starch as described in U.S. Pat. No. 2;
Starch derivatives described in No. 5,451 or British Patent No. 981,198, polyvinyl alcohol described in Japanese Patent Publication No. 3643/1983, polystyrene or polymethyl methacrylate described in Swiss Patent No. 330,158, and U.S. Pat. , 079,257, and polycarbonate described in US Pat. No. 3,022,169.

In the photosensitive material of the present invention, the constituent layers include slipping agents, such as those described in US Pat. No. 2,588,756 and US Pat.
higher alcohol esters of higher aliphatics as described in U.S. Patent No. 3,295,979, higher aliphatic calcium salts as described in British Patent No. , U.S. Patent No. 3,042
, No. 522 and No. 3,489,567.

Dispersions of liquid paraffin and the like can also be used for this purpose.

Filter dyes or dyes used for irradiation prevention and other purposes include oxanol dyes,
Contains hemioxanol dyes, merocyanine dyes, cyanine dyes, styryl dyes, and azo dyes. Among them, oxanol dyes; hemioxanol dyes and merocyanine dyes are useful. Specific examples of dyes that can be used are West German Patent No. 616.007, British Patent No. 584,609, and German Patent No. 1.
, No. 117.429, Special Publication No. 26-7777, No. 39
No.-22069, No. 54-38129, JP-A-1973-
No. 85130, No. 49-99620, No. 49-114
No. 420, No. 49-129537, No. 50-2882
No. 7, No. 52-108115, No. 57-185038
No. 1,878,961, Id.

884.035, L912,797, 2,09
No. 8,891, No. 2゜150.695, No. 2,274
, No. 782, No. 2,298,731, No. 2゜409.
No. 612, No. 2,461.484, No. 2,527,5
No. 83, No. 2゜533.472, No. 2,865,75
No. 2, No. 2,956,879, No. 3゜094.418
No. 3,125.448, No. 3,148,187, No. 3゜177.078, No. 3,247,127,
No. 3,260,601, No. 3282.699, No. 3,409,433, No. 3,540,887, No. 3
゜575.704, 3,653.905, 3,
No. 718.472, No. 3゜865.817, No. 4,0
No. 70,352, No. 4,071,312, PB Report No. 74175, 7O: Graphic Abstract (Photo, Abstr,) 28 ('21)
This is what is described in, etc.

As the optical brightener, stilbene-based, triazine-based, pyrazoline-based, coumarin-based, and acetylene-based optical brighteners can be preferably used.

These compounds may be water-soluble, or insoluble ones may be used in the form of a dispersion.

Examples of anionic surfactants include alkyl carboxylates, alkyl sulfonates, alkylbenzenesulfonates, alkylnaphthalene sulfonates, alkyl sulfates, alkyl phosphates, N-acyl-alkyl taurines, and Those containing acidic groups such as carboxy groups, sulfo groups, phospho groups, sulfate ester groups, phosphate ester groups, etc., such as acid esters, sulfoalkyl polyoxyethylene alkylphenyl ethers, and polyoxyethylene alkyl phosphate esters. is preferred.

Preferred examples of the amphoteric surfactant include amino acids, aminoalkyl sulfonic acids, aminoalkyl sulfates or phosphoric acid esters, alkyl betaines, and amine oxides.

Examples of cationic surfactants include alkylamine salts, aliphatic or aromatic quaternary ammonium salts, heterocyclic quaternary ammonium salts such as pyridium and imidazolium, and phosphonium or sulfonium salts containing aliphatic or heterocyclic rings. etc. are preferred.

Examples of nonionic surfactants include saponins (steroids), alkylene oxide derivatives (e.g. polyethylene glycol, polyethylene glycol/polypropylene glycol condensates, polyethylene glycol alkyl ethers or polyethylene glycol alkylaryl ethers, polyethylene glycol esters, polyethylene glycol alkyl ethers, polyalkylene glycol alkyl amines or amides, silicone polyethylene oxide adducts), glyceed derivatives (e.g. alkenylsuccinic acid polyglycerides, alkylphenol polyglycerides), fatty acid esters of polyhydric alcohols, alkyl esters of sugars etc. are preferred.

As matting agents, British Patent No. 1,055,713, U.S. Patent No. 1,939,213, U.S. Patent No. 2.22], 873
No. 2,268,662, No. 2,332,037, No. 2,376.005, No. 2,391,181,
No. 2,701,245, No. 2,992,101, No. 3,079゜257, No. 3,262,782, No. 3
, No. 516,832, No. 3,539゜344, No. 3,
No. 591.379, No. 3,754,924, No. 3,7
67゜448, etc.; West German Patent No. 2,592,321; British Patent No. 760,775;
No. 5, No. 2,192,241, No. 3゜053.662
No. 3,062,649, No. 3,257,206, No. 322.555, No. 3,353,958,
No. 3,370.951, No. 3411.907, No. 3,437,484, No. 3,523,022, No. 3
゜615.554, 3,635,714, 3,
No. 769,020, No. 4゜021.245, No. 4.0
Inorganic mantle agents such as those described in No. 29,504 can be preferably used.

As an antistatic agent, British Patent No. 1,466.600,
Research Bone Disclosure (Research
Disclosure) No. 15840, No. 16258
No. 16630, U.S. Patent No. 2,327,828,
No. 2,861,056, No. 3,206,312, No. 3,245,833, No. 3,428,451, No. 3
, No. 775,126, No. 3,963,498, No. 4,
No. 025.342, No. 4.0254603, No. 4.0
Compounds described in No. 25,691, No. 4,025,704, etc. can be preferably used.

Particularly preferred as an embodiment of the present invention is JP-A-62-
210458, JP-A No. 62-139546, and the like, a tetrazolium compound, a polyethylene oxide derivative, a phosphorus quaternary salt compound, a hydrazine compound, or the like is used as a tone control agent that promotes high contrast.

Further, it is also possible to use a technique in which a polymer latex is contained in a silver halide emulsion layer or a backing layer to improve dimensional stability. These techniques, for example,
No. -4272, No. 39-17702, No. 43-134
No. 82, U.S. Patent No. 2,376.005, U.S. Patent No. 2,763
．． No. 625, No. 2,772,166, No. 2,852,
No. 386, No. 2,853,457, No. 3, 397
, No. 988, etc.

Gelatin is used as the binder for the photosensitive material used in the present invention, but gelatin derivatives, cellulose derivatives, graft polymers of gelatin and other polymers, other proteins, sugar derivatives, cellulose derivatives, and single or copolymers may also be used. Hydrophilic colloids such as synthetic hydrophilic polymer substances can also be used in combination.

Gelatin includes lime-processed gelatin, acid-processed gelatin, Bulletin on Society on Japan (Bull, Sac, Sci, Phot, Ja
Oxygen-treated gelatin as described in Pan) No. 16, page 30 (1966) may be used, and gelatin hydrolysates and enzymatically decomposed products may also be used. As gelatin derivatives, various compounds such as acid halides, acid anhydrides, incyanates, bromoacetic acids, alkanesultones, vinyl sulfonamides, maleimide compounds, polyalkyleonoxides, and epoxy compounds can be added to gelatin. The product obtained by the reaction is used. Specific examples are U.S. Pat. No. 2.614,928 and U.S. Pat.
No. 2,945, No. 3,186,846, No. 3,312
, No. 553, British Patent No. 861,414, No. 1,033
, No. 189, No. 1,005,784, Special Publication No. 1972-2
It is described in No. 6845, etc.

Proteins such as albumin and casein, cellulose derivatives such as hydroxyethyl cellulose, carboxymethyl cellulose, and cellulose sulfate esters, and sugar derivatives such as sodium alginate and starch derivatives may be used in combination with gelatin.

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. Particularly preferred are graft polymers with polymers which are compatible with gelatin to some extent, such as acrylic acid, acrylamide, methacrylamide, hydroxyalkyl methacrylates and the like. Examples of these are U.S. Pat.
3.625, 2,831,767, 2,956
, No. 884, etc.

The photosensitive material of the present invention may further contain various additives depending on the purpose. These additives are described in more detail in Research Disclosure Vol. 176, 1 tem.
17643 (December 1978) and Volume 187 It
em18716 (November 1979), and the relevant parts are summarized in the table below.

Supports used in the photosensitive material of the present invention include paper laminated with α-olefin polymers (e.g. polyethylene, polypropylene, ethylene/butene copolymers), flexible reflective supports such as synthetic paper, cellulose acetate, nitric acid Examples include films made of semi-synthetic or synthetic polymers such as cellulose, polystyrene, polyvinyl chloride, polyethylene terephthalate, polycarbonate, and polyamide, flexible supports prepared by providing reflective layers on these films, and metals.

Among them, polyethylene terephthalate is particularly preferred.

As the undercoat layer that can be used in the present invention,
9-3972, subbing layer in an organic solvent system containing polyhydroxybenzenes, JP-A-49-11118
No. 52-104913, No. 59-19941,
No. 59-19940, No. 59-18945, No. 51
-112326, 51-117617, 51-
No. 58469, No. 51-114120, No. 51-12
No. 1323, No. 51-123139, No. 51-114
No. 121, No. 52-139320, No. 52-6542
No. 2, No. 52-109923, No. 52-119919
No. 55-65949, No. 57-128332,
Examples include the water-based latex undercoating layer described in No. 59-29941 and the like.

Further, the surface of the undercoat layer can usually be chemically or physically treated. Such treatments include surface activation treatments such as chemical treatment, mechanical treatment, corona discharge treatment, flame treatment, ultraviolet treatment, high frequency treatment, glow discharge treatment, activated plasma treatment, laser treatment, mixed acid treatment, and ozone oxidation treatment. .

The undercoat layer is distinguished from the coating layer according to the present invention, and there are no restrictions on coating timing or conditions.

In the present invention, dyes can be used as filter dyes or dyes for various purposes such as preventing halation.

Dyes that can be used include triallyl dyes, oxanol dyes, hemioxanol dyes, merocyanine dyes, cyanine dyes, styryl dyes, and azo dyes. Among them, oxanol dyes; hemioxanol dyes and merocyanine dyes are useful. Specific examples of dyes that can be used are West German Patent No. 616,007, British Patent No. 584,609, German Patent No. 1,177.429, Japanese Patent Publication No. 7777/1986, and Japanese Patent Publication No. 3
No. 9-22069, No. 54-38129, Japanese Unexamined Patent Publication No. 1973
-85130, 49-99620, 49-11
No. 4420, No. 49-129537, No. 50-288
No. 27, No. 52-108115, No. 57-18503
No. 8, No. 59-24845, U.S. Patent No. 1,878,9
No. 61, No. 1,884.035, No. 1,912.79
No. 7, No. 2,098,891, No. 2,150,695
No. 2,274.782, No. 2,298,731, No. 2,409,612, No. 2,461,484,
No. 2,527,583, No. 2,533,472, No. 2,865,752, No. 2,956,879, No. 3
, No. 094,418, No. 3.125.448, No. 3,
No. 148,187, No. 3,177.078, No. 3,2
No. 47,127, No. 3,260,601, No. 3,28
No. 2,699, No. 3,409,433, No. 3,540
, No. 887, No. 3,575,704, No. 3,653,
No. 905, No. 3,718,472, No. 3,865,8
No. 17, No. 4,070,352, No. 4,071,31
No. 2, PB Report No. 74175, Photographic Abstract (Photo, Abstr,)
128 ('21) etc.

In particular, it is suitable to use these dyes in light-sensitive materials that have a light sensitivity of 360 m at 4000 m.
It is particularly preferable to use it so that the sensitivity to nm light is 30 times or more higher.

Furthermore, when carrying out the present invention, Japanese Patent Application Laid-Open No. 61-26041
It is also possible to use an organic desensitizer in which the sum of the anode potential and the cathode potential of a polarograph is positive, as described in No. 1, etc.

The light-sensitive material of the present invention can be exposed to electromagnetic waves in a spectral region to which the emulsion layer constituting the light-sensitive material has sensitivity. Light sources include natural light (sunlight), tungsten electric lamps, fluorescent lamps, quartz lamps, mercury lamps, microwave UV lamps, xenonark lamps, carbon arc lamps, xenon flash lamps, cathode ray tube flying spots, various laser lights, light emitting diode lights, Any known light source can be used, such as light emitted from a phosphor excited by electron beams, X-rays, γ-rays, α-rays, or the like. Also, JP-A-62
-210458 and other UV light sources may be equipped with an absorption filter that absorbs wavelengths of 370 nm or less, or the emission wavelength may be reduced to 3
Preferable results can also be obtained by using a UV light source whose main wavelength is 70 to 420 nm.

The exposure time is not only the 1 millisecond to 1 second exposure time normally used in cameras, but also the exposure shorter than 1 microsecond, for example, the 100 nanosecond to 1 microsecond exposure time using a cathode ray tube or xenon flash tube. It is also possible to provide exposures longer than 1 second. These exposures may be performed continuously or intermittently.

The present invention can be applied to various photosensitive materials such as printing, X-ray, general negative, general reversal, general positive, direct positive, etc., but extremely high dimensional stability is required. Particularly remarkable effects can be obtained when applied to photosensitive materials for printing.

In the present invention, various types of development processing such as black and white, color, and reversal processing using known methods can be used to develop the photosensitive material, but it is particularly effective when processing for printing photosensitive materials that provide high contrast. It is.

In the present invention, in addition to thiosulfate and sulfite, the fixing solution that can be used during processing includes various acids, salts, fixing accelerators, wetting agents, surfactants, cleaning agents, and hardeners. A film agent etc. can be contained.

For example, thiosulfates and sulfites include the potassium, sodium, and ammonium salts of these acids; acids include sulfuric acid, hydrochloric acid, nitric acid, halic acid, formic acid, acetic acid, propionic acid, oxalic acid, tartaric acid; Citric acid, malic acid, 7-talic acid, etc. are mentioned, and as salts, potassium of these acids,
Examples include salts such as sodium and ammonium. As the fixing accelerator, Japanese Patent Publication No. 45-35754, Japanese Patent Application Laid-open No. 58
-122535, thiourea derivatives described in 58-122536, alcohols having a triple bond in the molecule, thioethers described in US Pat. No. 4,126,459, or cyclodextran ethers that free anions, crown Examples include ethers, diazabicycloundecene and di(hydroxyethyl)butamine. Examples of wetting agents include alkanolamine alcohols and the like. Examples of chelating agents include aminoacetic acids such as nitrilotriacetic acid and EDTA. As a hardening agent, chromium alum, potassium alum, Aβ compounds, etc. can be contained.

In the present invention, the fixer preferably contains an A4 compound in order to improve the hardness of the photosensitive material, and when the content is 0.1 to 3 g/Q in terms of AI2 in the solution used, preferable.

The preferred concentration of sulfite contained in the fixer is 0.03 to 0.
The amount is 4 mol/a, more preferably 0.04 to 0.3 mol/a.

The preferred pH of the fixer is 3.9 to 6.5;
The fixer gives favorable photographic performance, and the effect of the packaging material of the present invention becomes significant. Most Preferred Liquid [Examples] Specific examples are shown below to illustrate the effects of the present invention, but the present invention is not limited to these examples.

Example 1 [Method for Preparing Emulsion (A)] A silver chlorobromide emulsion was prepared using the following solutions A, B, and C.

Solution A> Ossein gelatin 85g polyisopropylene-polyethylene oxydisuccinic acid ester sodium salt 10% ethanol aqueous solution 25m4 Distilled water 6400m+2 Solution B> Silver nitrate 850g Distilled water 2050mQ.

<Solution C> Sodium chloride 25g Potassium bromide 37g Polyisopropylene oxydisuccinate sodium salt 10% ethanol solution 15m (2 ossein gelatin 55g distilled water
2035m4 solution A at 40℃
After keeping the temperature at 100 mV, sodium chloride was added so that the EAg value was 160 mV.

Next, solutions B and C were added by a double jet method using the mixing agitator described in JP-A-57-92523 and JP-A-57-92524.

As shown in Table 1, addition was carried out by gradually increasing the addition flow rate over a total addition time of 80 minutes while keeping the EAg value constant.

EAg value is 3 mol/Q 5 minutes after starting addition from 160 mv.
The EAg value was changed to 120 mv using an aqueous sodium chloride solution, and this value was maintained thereafter until the completion of mixing.

In order to keep the EAg value constant, 3 mol/Q sodium chloride Table 1 A metal silver electrode and a double junction type saturated Ag/AgC+2 reference electrode were used to measure the EAg value (the electrode configuration was 57-197534 was used).

Further, a variable flow rate roller tube metering pump was used to add solutions B and C.

Furthermore, during the addition, the emulsion was sampled and observed using an electron microscope to confirm that no new particles were generated within the system.

Also, during the addition, the pH value of the system was kept constant at 3.0.
% nitric acid aqueous solution.

After addition of solutions B and C, the emulsion was subjected to Ossdoorwald ripening for 10 minutes, divided into five equal parts, and each part was precipitated by adding a 2:1 solution of magnesium sulfate and water.

The pH of all emulsions at this time was 3.0. After discharging the supernatant liquid so that the remaining amount was 270 cc, 2300 cc of distilled water was added, and the pH was adjusted to 6.0 using a 10% aqueous potassium hydroxide solution, followed by stirring and washing with water for 10 minutes. After that, the pH was adjusted to 4 or 5 using 56% acetic acid aqueous solution.
After the solution was lowered to 100%, a 2=1 solution of magnesium sulfate and water was added again to cause precipitation. In the same way, wash with water and precipitate one more time.
After repeating the process several times, add 600 ma of an aqueous solution of ossein gelatin (containing 30 g of ossein gelatin) to each emulsion, adjust the pH to 5.8 using a 10% aqueous potassium hydroxide solution, and stir at 55°C for 30 minutes. After dispersion, it was adjusted to 750 CC.

The obtained emulsion is designated as (A).

[Method for preparing emulsion (B)]

After adding Solutions B and C in the same manner as in Emulsion (A), the emulsion was subjected to Ostwald ripening for 10 minutes, and then adjusted to 5.8 using a 3% aqueous sodium carbonate solution.

Thereafter, the emulsion was divided into five equal parts, and each part was precipitated by adding a 5% aqueous solution of a formalin condensate of sodium naphthalene sulfonate. After draining the supernatant liquid so that the remaining amount is 270 cc, add 2300 cc of distilled water and wash with stirring for 1 hour.
It lasted 0 minutes. Next, magnesium sulfate and water were added in a ratio of 1=4 to cause precipitation. After repeating water washing and precipitation once again in the same manner, 600 mQ of an aqueous solution of ossein gelatin (containing 30 g of ossein gelatin) was added to each emulsion, and the pH was adjusted to 5.0 with a 10% aqueous potassium hydroxide solution.
After dispersion by stirring at 55° C. for 30 minutes, the volume was adjusted to 750 cc.

The obtained emulsion is designated as (B).

The obtained emulsions (A) and CB) were each subjected to total sulfur sensitization, and 300 mg of sensitizing dye A was added per mole of silver halide contained in the emulsion, and 4-hydroxy-6-methyl was added as a stabilizer. -1.3.3a,7-chitrazaindene is added, and sensitizing dye B is added to the emulsion by % Sensitizing dye A CH2CH2CN Sensitizing dye B Then, 800 mg of the tetrazolium compound shown in T-36 per mole of silver halide In addition, 300 mg of sodium p-dodecylbenzenesulfonate, 2 g of styrene-maleic acid copolymer, and styrene-butyl acrylate-acrylic acid copolymer latex (average particle size of approx.
15 g of Ag and gelatin were added as shown in Table 2, and the coating was applied onto a subbed polyethylene terephthalate film base as described in Example (1) of JP-A-59-19941. At that time, the amount of gelatin was as shown in Table 2, 10 mg/m2 of bis(2-ethylhexyl)sulfosuccinate as a spreading agent, 15 mg/m2 of formalin, and 8 mg/m2 of glyoxal as a hardening agent.
Two protective layers were simultaneously coated.

These samples were exposed to light using a tungsten light source using a wedge and developed. The development process was carried out using the developer and conditions shown below. The amount of silver was analyzed using a fluorescent X-ray analyzer. However, the amount of silver after treatment is expressed as the amount of silver that gives the maximum density.

Measurement of Pressure Resistance Regarding pressure resistance, after 95% of these samples were photographed, the exposed samples were bent under a constant pressure and developed. Those with a large concentration change due to pressurization are ranked 1, and those with no concentration change are ranked 10.
A graded evaluation was performed.

Rank 4 is a level that poses a problem in practice.

<Development processing conditions> (Process) (Temperature) (Time) C979 capacity) Development
Image 35°C 15 seconds 20Q fixation 35°C 15 seconds 2Off water
Wash 18°0 10 seconds 15ff dry
Drying at 40° C. for 10 seconds Each step also includes so-called wading conveyance time until the next step.

Dry to Dry time is 50 seconds.

The results are shown in Table 3.

<Developer prescription> (Composition A) Pure water (ion exchange water) 150+n(2
Polyethylenediaminetetraacetic acid disodium salt g Diethylene glycol 50g Potassium sulfite (55% w/v aqueous solution) 100mff Potassium carbonate 50g Hydroquinone
15g 5-methylbenzotriazole 200mg 1-phenyl-5-mercaptotetrazole 0mg Potassium hydroxide Amount to bring the pH of the working solution to 10.4 Potassium bromide 4.5g (composition) Pure water (ion-exchanged water) 3ml diethylene glycol 50g ethylenediamine tetra Acetic acid disodium salt 5 mg Acetic acid (90% aqueous solution) 0.3 mff
5-Nitroindazole 110mg1-
7 Niniru 3-Birazo! J'r' 7700 mg butylamine diethanolamine 15 g When using a developer, the above compositions were dissolved in 500 ml of water in the order of the above composition A1 composition and finished to 112 before use.

<Fixer formulation> (Composition A) Ammonium thiosulfate (72.5% W/V aqueous solution) 40
m12 Sodium sulfite 17g Sodium acetate trihydrate 6.5g Boric acid
6g Sodium citrate dihydrate
2g acetic acid (90% w/w aqueous solution)
13.6 mff (composition) Pure water (ion exchange water) 17 m12 Sulfuric acid (50% w/w aqueous solution) 4.7 g aluminum sulfate (aqueous solution with AQ203 equivalent content of 8.1% w/w) 26
．． When using 5 g of fixer, the above compositions were dissolved in 500 mff of water in the order of composition A1 and finished to lI2. The pH of this fixer was about 4.3.

Table 3 Gamma is defined for density 0.3 to 3.0.

If the gamma is less than 5, the fine lines will be distorted, making it difficult to put it into practical use.

From the results in Table 3, it can be seen that the samples of the present invention have high gamma and good pressure resistance.

Example 2 A similar experiment was conducted in Example 2111 by replacing the tetrazolium compound (T2O) with the following compound. Example 1
I was able to obtain similar results.

〔Effect of the invention〕

According to the present invention, even when subjected to ultra-quick processing, the silver halide photographic material has excellent pressure resistance, the silver in the photosensitive material is effectively developed, and high-contrast images can be obtained. We can provide a processing method.

Claims (3)

[Claims] (1) In the production of a silver halide photographic light-sensitive material, coagulation desalting is performed using only an inorganic coagulation precipitant, and the silver halide emulsion layer contains at least one type of tetrazolium compound. A silver halide material, characterized in that the weight ratio of silver to gelatin (Ag/gelatin) in the hydrophilic colloid layer on the side containing the silver halide emulsion layer with respect to the support is 1.0 or more. Photographic material. (2) A processing method, characterized in that the silver halide photographic material according to claim 1 is processed within a development time of 19 seconds. (3) A method for processing a silver halide photographic light-sensitive material according to claim 2, wherein the total processing time of Dry to Dry is 20 seconds to 60 seconds.