JPH0480747A - Processing method for silver halide photographic sensitive material - Google Patents

Abstract

PURPOSE:To ensure high image quality, improved whiteness and satisfactory shelf stability and to reduce residual color even in the case of very rapid processing by incorporating a water-soluble dye having its absorption max. at >=700nm wavelength into a hydrophilic colloidal layer and further incorporating an oil-soluble optical whitening agent. CONSTITUTION:Hydrophilic colloidal layers including at least one photosensitive silver halide emulsion layer sensitized in an IR region are formed on a base, at least one kind of water-soluble dye having its absorption max. at >=700nm wavelength is incorporated into at least one of the colloidal layers and an oil-soluble optical whitening agent is further incorporated into the dye-contg. colloidal layer or other colloidal layer. The resulting sensitive material is processed by development, fixation and washing and/or stabilization within 40sec with an automatic processing machine having >=1,500mm/min line speed. High image quality, improved whiteness and superior shelf stability are ensured and residual color or unevenness in residual color is reduced even in the case of very rapid processing.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a method for processing silver halide photographic materials,
More specifically, it relates to a method for processing silver halide photographic materials that have high image quality, improved white charcoal, and good storage stability (with little residual color even when subjected to ultra-rapid processing).

[Conventional technology]

When a light source that emits in the infrared region is used as a light source for exposure,
A bright safelight can be used, which is advantageous for handling operations. For this reason, silver halide photographic materials spectrally sensitized in the infrared region have been proposed. Such a photographic material can be exposed to light to form an image using, for example, the so-called Suki-Yana method.

The image forming method using a single scanner scans Wr14 and exposes the silver halide photographic material based on the image signal to form a negative or positive image corresponding to the image shown in the figure. be. There are various types of recording apparatuses that utilize image forming methods using a single-scanner type, and the recording light sources for these single-scanner type recording apparatuses include semiconductor lasers (1e-Me lasers), argon lasers,
Light emitting diodes (LEDs) are used.

On the other hand, infrared spectral sensitized silver halide photographic paper generally uses a dye that absorbs infrared light in order to prevent halation and irradiation and improve image quality. It is also a well known technique to apply optical brighteners to enhance the whiteness of silver halide photographic papers after processing.

The use of oil-soluble optical brighteners as optical brighteners is superior to water-soluble optical brighteners in that the optical brighteners are less likely to flow out during development.

Techniques for adding oil-soluble optical brighteners to light-sensitive materials include, for example, British Patent No. 1,072,815 and JP-A-4537.
As described in Japanese Patent Application Laid-open No. 37111 and Japanese Patent Application Laid-Open No. 80-134232, a method is known in which an oil-soluble optical brightener is dissolved in an organic solvent and added to a photosensitive material.

However, when an oil-soluble optical brightener is applied to silver halide photographic paper that is spectrally sensitized in the infrared and contains a certain type of dye that absorbs in the infrared, the sensitivity decreases when exposed to high temperatures. That is, it has been found that there is a problem of deterioration of sensitivity stability or storage stability.

Therefore, it is desired to develop a dye that can be used in photographic paper that has high image quality, improved whitening, and excellent sensitivity storage stability (sometimes referred to simply as storage stability).

To date, many efforts have been made and a large number of dyes have been proposed with the aim of finding dyes that satisfy the above requirements.For example, U.S. Pat. Japanese Patent Publication No. 50-91827,
Oquinol dyes described in JP-A No. 52-34716, etc., styryl dyes as typified by U.S. Pat. No. 1.845,404, merocyanine dyes as typified by U.S. Pat. No. 2,493,747, and U.S. Pat. No. 2,843. , No. 488.

However, the reality is that there are very few good dyes that satisfy all of the above requirements.

On the other hand, the consumption of silver halide photographic materials has been increasing steadily in recent years. For this reason, the number of silver halide photographic materials to be processed has increased, and there is a demand for speeding up the development process, that is, increasing the amount of processing within the same amount of time. This trend can also be seen in the printing plate making field. In other words, as the immediacy and number of times information is rapidly increasing, it has become necessary to shorten delivery times and handle larger quantities of printing plate-making operations. In order to meet such demands of the printing plate making industry, it is necessary to promote the simplification of the printing process and to process photosensitive materials for printing plate making more rapidly.

However, when ultra-rapid processing is applied to infrared spectrally sensitized silver halide photographic paper containing oil-soluble optical brighteners and conventional dyes, there is a problem that residual color or residual color unevenness tends to occur. .

[Problem to be solved by the invention]

Therefore, the purpose of the present invention is to provide a method for processing silver halide photographic materials that have high image quality, improved whitening, excellent storage stability, and less residual color or color unevenness even when processed ultra-quickly. The challenge is to provide.

[Means to solve the problem]

The above-mentioned object of the present invention is to provide a method for processing a silver halide photographic material having a hydrophilic colloid layer including at least one infrared-sensitized light-sensitive silver halide emulsion layer on a support. At least one of the sex colloid layers is 7
A hydrophilic colloid layer containing at least one water-soluble dye having an absorption maximum at 00 mm or more, or another hydrophilic colloid layer containing the dye, contains an oil-soluble optical brightener, and is suitable for development, fixing, Achieved by a method for processing silver halide photographic materials, which is characterized in that all processes of water washing and/or stabilization are carried out in a processing time of 40 seconds or less using an automatic developing machine with a line speed of 1500 mm/layer or more. .

Further, in a preferred embodiment of the present invention, the hydrophilic colloid layer containing the dye and the oil-soluble optical brightener is antihalation.

The present invention will be explained in detail below.

First, a water-soluble dye having an absorption maximum at 700 nm or more will be explained.

The water-soluble dye having an absorption maximum at 700 nm or more is preferably a dye represented by the following general formulas (Ia), (Ib), or (Ic).

General formula (Ia) General formula (Ib) (χ0)n- General formula (Ic) [In the formula, Rl, R2, R3, Rs, R5 and R6 each represent an alkyl group, and Yl and Y2 represent a pyrrolopyridine ring. represents a group of nonmetallic atoms necessary for the formation of Yl, and is included in the ring of Yl.

R l, R2, R3, R4, R in general formula (Ia)
S.

R6, Y l, Y 2. R l in the general formula [from]
, R2°R3, R4, R5, R6, Yl, Y2 and R1. in general formula (Ic). R2, R3, R4, R
5, R6, Yl, Y2 are each a group that allows the dye molecule to have at least two acid groups or -GHz
R represents a group that allows at least two substituents having one or more GHZOR groups, and R represents a hydrogen atom or an alkyl group.

L represents a methine group, and xo represents an anion.

m represents an integer of 4 or 5; n represents an integer of 1 or 2; n is 1 when the dye forms an intramolecular salt; ] Examples of the acid group in the general formulas (Ia), (Ib), and (Ic) include a sulfonic acid group, a carboxylic acid group, a phosphonic acid group, and each of these acid groups includes its salt. Examples of the salt include alkali metal salts such as sodium and potassium salts, and organic ammonium salts such as ammonium, triethylamine, and pyridine.

The alkyl groups represented by R1, R2, R3, Rs, Rs and R6 are preferably lower alkyl groups having 1 to 8 carbon atoms (
(for example, methyl, ethyl, propyl, i-propyl, butyl group, etc.), and the above acid substituent or -CH2CH20
It may have substituents other than the R group.

The alkyl group represented by R is preferably a lower alkyl group having 4 or less carbon atoms.

-CH2CH20R group-containing substituents include, for example, hydroxyethyl group, hydroxyethoxyethyl group, methoxyethoxyethyl group, hydroxyethylcarbamoylmethyl group, hydroxyethoxyethylcarbamoylmethyl group, N,N-dihydroxyethylcarbamoylmethyl group, hydroxyethyl Examples include a sulfamoylethyl group and a methoxyethoxyethoxycarbonylmethyl group.

Other substituents that Yl and Y2 may have include sulfo groups (including salts), carboxy groups (including salts),
Hydroxy groups, cyano groups, halogen atoms (e.g. fluorine,
chlorine, bromine atoms, etc.).

The methine group represented by L may also have a substituent, and examples of the substituent include a substituted or unsubstituted lower alkyl group having 1 to 5 carbon atoms (eg, methyl, ethyl).

(3-hydroxypropyl, 2-sulfoethyl group, etc.), halogen atoms (eg, fluorine, chlorine, bromine atoms, etc.), aryl groups (eg, phenyl group), and alkoxy groups (eg, methoxy, ethoxy group, etc.). In addition, the substituents of the methine group are bonded to each other to form a 6-membered ring containing three methine groups (
For example, a 4,4-dimethylcyclohexene ring) may be formed.

The anion represented by xo is not particularly limited, but specific examples include halogen ion, P-)luenesulfonic acid ion, and ethyl sulfate ion.

General formulas (ra) and (Ib) preferably used in the present invention as well as (Ic) A specific example of a dye represented by As shown below, Not limited to these.

Specific compound (l (I (I (+-6) (■ (T-8) (■ -11) (+ -13) (] (I -19) (■ (I (J (l (■-31) ) (I-32) The dye is described in Journal on the Chemical Society (J, chem, soc,) p. 189 (1933).
) U.S. Patent No. 2,895J55 and Japanese Patent Publication No. 1983-12
It can be synthesized by referring to No. 3454 and the like.

Examples of the mother nucleus of the dye include the following compounds.

Compound (A) is 1cha++, soc, 3202 (1
959) and British Patent No. 870,753.

Compound (B) has been described in J, Chem, Soc, 584 (13
It can be synthesized by the method described in 61).

Compound (C) can be synthesized by the method described in British Patent No. 841,588.

Using these cores, quaternization, sulfonation, etc. can be performed as necessary. Or J, ChewSa
c, , 3202 (+959) and J, Chem, So
N-alkyl-tobiridylhydrazine was synthesized according to the synthesis method described in J.C., 584 (1961), and the cyclization reaction was carried out via hydrazone, and if necessary treated with diacid, 1
-Alkyl-substituted-3H-pyrrolopyridine derivatives can also be obtained and used as starting materials.

The above-mentioned dye is dissolved in a suitable solvent (for example, water, alcohol (for example, methanol, ethanol, etc.), methyl selonbean, etc., or a mixture thereof and added to the coating solution for the hydrophilic colloid layer.

Two or more of the above dyes can also be used in combination.

In the present invention, the general formula (Ia), (Ib) or (I
It is sufficient that at least one of the compounds represented by c) is contained in the photographic material to be processed. )
It is also possible to use two or more types.

The specific amount of dye used varies depending on the purpose and is difficult to set uniformly, but it is generally between 10"g/m' and 1.og/m.
Preferred amounts can be found in the range 1, especially 1 (12 g/m'' to 0-58 g/m'').

The dye can be used as an anti-irradiation dye by being included in a silver halide photographic emulsion, or it can be used as an anti-halation dye or filter dye by being included in a non-photosensitive hydrophilic colloid layer. You can also do it. It may also be added to the upper layer (protective layer, etc.) of the non-photosensitive hydrophilic colloid layer and used as a dye to provide safelight safety. It is preferable to use it at least as an antihalation dye.

Next, the oil-soluble optical brightener used in the present invention will be explained.

Oil-soluble optical brighteners include, for example, British Patent Section 788.
Substituted stilbenes, substituted coumarins, and E-substituted thiophenes described in U.S. Patent No. 3,135,762 are useful;
Oil-soluble optical brighteners such as those disclosed in JP-A-50-126732 can be used particularly advantageously.

As an oil-soluble optical brightener, use the following general formula (% formula %) What is expressed is advantageously used.

General formula (II a) General formula (n b) General formula (II c:] K's General formula (II d) However, in the above general formula CII a) to (II d), Yl
and Y2 are alkyl groups, Zl and Z2 are hydrogen atoms or alkyl groups, n is 1 or 2, RI, R2, R3 and RJ are aryl groups, alkyl groups, alkoxy groups, aryloxy groups, hydroxy groups, amino groups, cyano groups. group, carboxy group, amide group, ester group, alkylcarbonyl group, alkylsulfo group or dialkylsulfonyl group, or a hydrogen atom. R5 and R6 are a hydrogen atom, an alkyl group such as a methyl group, an ethyl group, or a cyano group.

R8 is a phenyl group, a halogen atom or an alkyl-substituted phenyl group. R7 is an amino group or an organic or secondary amine.

Next, exemplary compounds of the oil-soluble optical brightener used in the present invention will be listed, but the invention is not limited thereto.

(Example oil-soluble optical brightener) (n-2) CH.

C1(.

(II-3) (II-4) (n-6) (II-7) (IL-9) (II-,13) (n-14) (In-15) (JL-16) (■ (II -19) (■ (II -21) (II C)Ij Q (n-24) N (n-25) (n -26) The above-mentioned fluorescent brightener may be used alone, or two types may be used. The above may be used in combination.

The amount of optical brightener used is 1 to 200% in the finished photographic paper.
It is preferable to add so that the amount of g/rn' is 5
It is most preferable to use it in the range of ~50 mg/rrf.

The layer to which the optical brightener emulsion dispersion used in the present invention is added may be any photographic constituent layer on the support, but from the viewpoint of preventing so-called blooming, it is preferable to use a silver halide emulsion layer or a support layer. It is best to add it to a material close to that of hydrophilic colloids (such as a hydrophilic colloid such as an intermediate layer).

One method for adding an oil-soluble optical brightener is the same method as conventionally used for oil-soluble couplers and oil-soluble ultraviolet absorbers. There is a method in which it is dissolved together with an S point solvent, mixed with an aqueous gelatin solution containing a surfactant, and added as an emulsified dispersion using an emulsifying device such as a colloid mill, homogenizer, or ultrasonic dispersion device.

The high-boiling point solvent referred to in this specification refers to a solvent with a boiling point exceeding 200°C. Examples of high-boiling point solvents that can be used in the present invention include carboxylic acid esters, phosphoric esters, and carboxylic acid esters. There are amide ethers, substituted hydrocarbons, etc., specifically di-n-butyl phthalate, di-yne-octylphthalate, dimethoxyethyl phthalate, di-n-butyl adipate. , diisooctyl azeinate, tri-n-butyl citrate, butyl urarate, di-n-sepacic acid ester, tricresyl phosphate, tri-n-butyl phosphate, triisooctyl phosphate, N,N diethyl Caprylic acid amide, N,N-dimethylpalmitic acid amide, n-butyl-pentadecyl phenyl ether, ethyl-2,4
-tert-butylphenyl ether, succinic acid ester, pleic acid ester, chlorinated paraffin, etc., and these can be used alone or in combination of two or more.

In addition, low boiling point solvents include ethyl acetate, butyl acetate,
Cyclohexane, propylene carbonate, methanol, 5ec-butyl alcohol, tetrahydrofuran,
Dimethylformamide, benzene, chloroform, acetone, methyl ethyl ketone, diethyl sulfoxide,
Examples include methyl seron rub, and these can be used singly or in combination of two or more, if necessary.

Further, as the surfactant, an anionic surfactant, a nonionic surfactant, or a combination thereof can be used. For example, alkylbenzene sulfonate, sulfosuccinate salt, saponin, etc. are used.

Examples of gelatin include alkaline method gelatin, acid method gelatin, and modified gelatin (for example, Japanese Patent Publication No. 3B-4854, No. 4
No. 0-12237, U.S. Patent No. 2,525,753
modified gelatin, etc. described in the specification etc.) can be used alone or in combination of two or more, and if necessary, a natural or synthetic binder (such as polyvinyl alcohol, polyvinyl alcohol, etc.) can be used.
polyvinylpyrrolidone, etc.) may also be used.

Other methods of adding oil-soluble optical brighteners include pre-dissolving the oil-soluble optical brightener in monomers and polymerizing them to form a latex dispersion, or impregnating them with a co-solvent in a hydrophobic polymer latex. There is a method of adding it as a latex dispersion. These methods are described, for example, in Japanese Patent Application Laid-Open No. 1983
-+26t732.

Japanese Patent Publication No. 51-47043, U.S. Patent No. 3,418,1
No. 27, No. 3,359,102, No. 3,558,
No. 316, No. 3,788,854, etc.

The infrared sensitizing dye used to infrared sensitize the silver halide photographic light-sensitive material according to the invention may be any dye, and for example, compounds represented by the following general formulas [■&] and [IIIb) are preferred. used.

General formula (ma) (χ11”)m General formula (mb) [wherein, Yll, YI2. Y21 and Y22 are
Each represents a nonmetallic atom group necessary to complete a 5- or 6-membered nitrogen-containing heterocycle, such as benzothiazole ring, naphthothiazole ring, benzselenazole ring, naphthoselenazole ring, benzoxazole ring, naphthoxazole ring, quinoline ring, 3,3-dialkylindolenine ring, benzimidazole ring, pyridine ring and the like.

These heterocycles may be substituted with a lower alkyl group, an alkoxy group, a hydroxy group, an aryl group, an alkoxycarbonyl group, or a halogen atom.

R11, RH, R21 and R22 each represent a substituted or unsubstituted alkyl group, aryl group or aralkyl group.

RN, R14, R15, R23, R24, R25 and R26 are each a hydrogen atom, a substituted or unsubstituted alkyl group, an alkoxy group, a phenyl group, a benzyl-substituted or unsubstituted alkyl group (the alkyl portion has 1 to 1 carbon atoms)
18, preferably 1 to 4), represents an aryl group, and Wl and W2 can be linked to each other to form a 5- or 6-membered nitrogen-containing heterocycle.

Further, R13 and R15 and R23 and R25 can be connected to each other to form a 5-membered ring or a 6-membered ring.
Yll, Y12. Y2+, Y22. R11,R
I2゜R13, R14, R+s, R21, R22, R2
3, R24゜One of R25, R26 is preferably an acid group (e.g. carbonyl group, sulfonyl group, etc.) or a group substituted with an acid group, xll and X
21 represents an anion, if there is an acid group, In11゜m
21 represents O, III when there is no acid group, m21 represents 1, n11. n12. n21 and nu represent 0 or l.

Next, specific examples of sensitizing dyes preferably used in the present invention will be shown, but the present invention is not limited thereto.

Exemplary sensitizing dyes (III-1) (III-2) (N-4) (I[-5) (III (I[l-7) (III-8) e e (III-9) CDI-10) (ffi-11) (III-12) (■ (■ (III-15) (knee 16) e e e UL-17) (III-18) (m-19) (In-20) CzH+ (cHt)sso+e C, I+.

(ffl-21) (I[-22) CILL-23) (III-24) 2H1 e CI(2C) 1.01 (The sensitizing dye preferably used in the present invention preferably has a content of 1 jg to 1 mole of silver halide. 2g, more preferably 5m
It is contained in the light-sensitive silver halide photographic emulsion layer in the range of -1 g.

Such sensitizing dyes can be dispersed directly into the emulsion. Alternatively, they can be first dissolved in a suitable solvent such as methyl alcohol, ethyl alcohol, methyl cellosolve, acetone, water, pyridine, or a mixed solvent thereof, and then added to the emulsion in the form of a solution.

The sensitizing dyes may be used alone or in combination of two or more, and sensitizing dyes other than those mentioned above may also be used in combination. When a sensitizing dye is used in combination, it is preferable that the total amount is the above content.

The above-mentioned sensitizing dye is described in U.S. Patent No. 2,503.77fi.
No., British Patent No. 742,112, Buddhist Patent No. 2,085,
It can be easily synthesized with reference to No. 882 and Japanese Patent Publication No. 4O-234f1.

The silver halide used in the silver halide photographic light-sensitive material to which the present invention is applied may be any silver halide such as silver bromide, silver chloride, silver iodobromide, silver chlorobromide, silver chloroiodobromide, etc. The silver halide grains may be obtained by any of the acid method, neutral method, and ammonia method.

Silver halide grains may have a uniform silver halide composition distribution within the grain, or may be core/shell grains with different internal and surface layers, with latent images forming primarily on the surface or primarily within the grain. It may be a particle that is

Any shape of silver halide grains can be used. One preferred example is a cube having a (+00) plane as a crystal surface. Also, US Patent No. 4183.
758, Ii'i'l No. 4,225,886, Japanese Patent Application Publication No. 55-28589, Japanese Patent Publication No. 55-42737, and The Journal on Photographic.
Science (J, Photogr, 5ci), 21.39
Particles having shapes such as octahedrons, tetradecahedrons, dodecahedrons, etc. can be prepared by the method described in the literature such as (+973) and used. Furthermore, grains 1 having twin planes may be used.

The silver halide grains 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 it may be an emulsion with a wide grain size distribution (polydisperse emulsion), or an emulsion with a narrow grain size distribution (monodisperse emulsion) alone or in combination. Alternatively, a polydisperse emulsion and a monodisperse emulsion may be mixed and used.

In the present invention, it is preferable to use a monodispersed emulsion.

The silver halide grains in the monodispersed emulsion have an average grain size r
It is preferable that the weight of silver halide contained within a grain size range of ±20% around 20% is 60% or more of the total weight of silver halide grains, particularly preferably 70% or more, and even more preferably 80% or more. It is.

Here, the average particle size r is the frequency n of particles having particle size ri.
It means the particle size when ft1niXri3 of 1 and ri3 becomes maximum.

(3 significant figures, round off the lowest digit) where:
The grain size refers to the diameter in the case of spherical silver halide grains, and in the case of grains having shapes other than cubic or spherical, the diameter when the projected image is converted into a circular image of the same 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 particles to be measured is assumed to be 1000 or more indiscriminately.

) In the present invention, a highly monodisperse emulsion is preferred, with a coefficient of variation (monodispersity) defined by the following formula preferably 20 or less, more preferably 15 or less.

Here, the average particle diameter and particle diameter standard deviation shall be determined from ri defined above. Monodisperse emulsion is disclosed in Japanese Patent Application Laid-Open No. 54-4852.
No. 1, No. 58-49938 and No. 60-122935
You can obtain it by referring to the issue.

Silver halide emulsions can be chemically sensitized by conventional methods. I! l] In a sulfur bath using active gelatin or a sulfur-containing compound that can react with silver ions.

A selenium sensitization method using a selenium compound, a reduction sensitization method using a reducing substance, a noble metal sensitization method using gold or other noble metal compounds, etc. can be used alone or in combination.

After completion of chemical sensitization as described above, a stabilizer such as 4-hydroxy-6-methyl-1,3,3a, 7-tetrazaindene can be used. ′! ! If necessary, silver halide solvents such as thioethers may be used, and compounds such as mercapto group-containing compounds, nitrogen-containing heterocyclic compounds, or sensitizing dyes may be used during the formation of silver halide grains, or during grain formation. It may be added and used after aging.

In the present invention, the silver halide grains used in the emulsion are:
Metal-ions are added using cadmium salts, zinc salts, lead salts, evening ram crucibles, iridium salts or their s-funes, rhodium salts or their complexes, iron salts or their complex salts, and the inside of the particles and/or Alternatively, reduction sensitizing nuclei can be added to the inside of the particles and/or on the particle surfaces by placing them in a reducing atmosphere with continuous light.

Emulsions containing silver halide grains may be prepared by removing unnecessary soluble salts after the growth of the silver halide grains has finished, or by leaving them in the emulsion. - It can be carried out based on the method described in Disclosure No. 17843.

Silver halide emulsions are used during the manufacturing process of photosensitive materials, during storage,
Or chemistry for the purpose of preventing fog during photo processing or maintaining stable photo performance! 8, during the chemical ripening, and/or after the chemical ripening and before coating the silver halide emulsion, azoles such as benzothiazolium salts,
Nitroindazoles, triazoles, benzotriazoles, benzimidazoles (especially nitro- or halogen-substituted), heterocyclic mercapto compounds such as mercaptothiazoles, mercaptohenzimidazoles, mercaptothiazoles, mercaptotetrazoles (especially 1-phenyl-5-mercaptotetrazole), mercaptopyridines, the above-mentioned heterocycles having a water-soluble group such as a carboxyl group or a sulfone group, mercapto compounds, thioketo compounds such as oxazolinthione, azaindenes such as tetrazaindenes ( Especially 4-hydroxy substituted (1,3,3a,7)tetrazaindenes)
Antifoggants or stabilizers such as benzenethiosulfonic acids, benzenesulfinic acids, etc. can be added.

An example of a compound that can be used is Chi Mee 2 (K.

Mees), The Theory of Photography/Re1 Process
e Photographic Process, 3rd
(Ed., 1966), citing the original literature.

For more detailed examples and other methods of use, see, for example, U.S. Pat.
No. 82,947, No. 4,021,248 or Special Publication No. 5
The description in No. 2-2EH60 can be referred to.

In addition, U.S. Pat. No. 3,1111,911,
The alkyl acrylate latex described in Japanese Patent Publication No. 3,411,912, Japanese Patent Publication No. 45-5331, etc. can be included.

The photosensitive material may contain the following various additives, namely:
As thickeners or delta softeners, e.g. U.S. Pat.
No. 04, Special Publication No. 43-4939, West German Application Publication No. 1,
No. 904,604, Japanese Patent Publication No. 4843715, Belgian National Watch No. 762,833, U.S. Patent No. 3,787,41
0, Belgian Patent No. 588443, such as styrene-sodium maleate copolymer, dextran sulfate, etc. Hardeners include aldehyde-based, epoxy-based, ethyleneimine-based, active Halogen-based, vinyl sulfone-based, isocyanate-based,
Various hardening agents such as sulfonic acid ester type, carbodiimide type, mucochloric acid type, and acyloyl type; examples of ultraviolet absorbers include those described in U.S. Patent No. 3,253,921 and British Patent No. 1,309,349, etc. compounds described in , 2- (2-hydroxy-3'-tertiary butyl-5'-butylphenyl)-5-chlorobenzotriazole, 2- (2'-hydroxy-3',5'-cyphthylphecol) -5 -chlorobenzotriazole and the like. Further, coating aids, emulsifiers, permeability improvers for processing liquids, antifoaming agents, and surfactants used to control various physical properties of photosensitive materials include British Patent No. 548,532;
No. 1,218,389, U.S. Patent No. 2,028,202
No. 3,514,293, Special Publication No. 44-2Ei58
No. 0, No. 43-17922, No. PI 43-17926, No. 43-3186, No. 49-20785, Buddhist Patent No. 202,588, Belgian Patent No. 773,459,
Anionic, cationic, nonionic or amphoteric compounds described in JP-A-48-101118 etc. can be used, and among these, anionic surfactants having a sulfonic group, such as succinic acid Ester sulfonated compounds, alkylbenzene sulfonated compounds, etc. are preferable, and antistatic agents include Japanese Patent Publication No. 4G-24159, Japanese Patent Application Laid-Open No. 48-89979, and U.S. Patent No. 2,882,1.
No. 57, No. 2,972,535, Japanese Unexamined Patent Publication No. 48-2078
No. 5, No. 48-43130, No. 48-90391,
Special Public Showa 4G-2415! ] No. 46-39312,
There are compounds described in JP-A-411-43809 and JP-A-47-33827.

The structure d layer of the photosensitive material contains a matting agent, such as silica as described in Swiss Patent No. 330, 158, Private Seal Patent No. 1.29.
Glass powder described in No. 8885, British Patent No. 1,173,1
Inorganic particles such as alkaline earth metals or carbonates such as cadmium and zinc as described in US Pat. No. 81: US Pat. No. 2,322.
Starch as described in Belgian Patent No. 625,451 or British Patent No. 981,198; Polyvinyl alcohol as described in Patent Publication No. 1983-3643; Polystyrene as described in Swiss Patent No. 330.158. or polymethyl methacrylate, US Pat. No. 3,
Organic particles such as the polyacrylonitrile described in US Pat. No. 079,257 and the polycarbonate described in US Pat. The average particle size of the f-7 agent is preferably 2 to 8 m.

A slippery agent is added to the constituent layers of the photosensitive material, such as U.S. Pat.
Higher aliphatic higher alcohol esters described in No. 88.75fi and No. 3j21,080, US Pat. No. 3,295
．． Casein described in No. 979, British Patent No. 1,283,7
Higher aliphatic calcium crucible described in No. 22, UK time ￥ f1
, 313.384, U.S. Pat. No. 3,042,522,
It may also contain a silicon compound described in Japanese Patent No. 3,489,567.

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

The photosensitive material may further contain various additives depending on the purpose. These additives, including those mentioned above, are described in more detail in Research Disclosure Volume 178 I.
tem 17843 (December 1978) and 18
7%, as stated in Item 18716 (November 1979), and the relevant sections are summarized in the table below.

Page 23 1, Chemical sensitizer 2, Sensitivity enhancer 3, Spectral sensitizer Super sensitizer 4, Brightener 5 Anti-fog agent and stabilizer 6 Light absorber Filter dye Ultraviolet absorber 7, Anti-stain Agents 25 right column 8, Dye image stabilizers 25 pages 9, Hardeners 26 pages 10, Binder 26 pages 11, Plasticizers/lubricants 27 pages 12 Coating aids/26-27 surfactants 13, Sudachi 7ri Inhibitor 24 page 24-25 page 27 Same as above 23-24 page 25-26 page 648 page Right column Same as above 648 page Right shale 849 page Right column 649 page Right column 649 page Right shale 648 page Left column 650 page Left left upper column ε51 Page left column Same as above page 650 Right column Same as above Page 650 Gelatin is usually used as a binder for the silver halide emulsion, but if necessary, gelatin derivatives, graft polymers of gelatin and other polymers, and other proteins may be used. Hydrophilic colloids such as synthetic hydrophilic polymeric substances such as , sugar conductors, cellulose conductors, monopolymers or copolymers can also be used.

Gelatin includes lime-processed gelatin, acid-processed gelatin, Bulletin on Society on Japan (Bull, Soc, Sci, Phot, Japan).
N.

16.30 (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 sulfone 7-mits, maleimide compounds, polyalkyleonoxides, epoxy compounds, etc. can be added to gelatin. Nz
The one obtained by doing so is used. Specific examples include U.S. Patent Nos. 2,614,928, 3,132,945, 3j8J848, 3,312,553, British Patents 881,414, 1.033,189, and 1. ,0
No. 05,784, Japanese Patent Publication No. 42-26845, etc.

Examples of proteins include albumin and casein; examples of cellulose metal conductors include hydroxyethyl cellulose, carboxymethyl cellulose, and sulfuric esters of cellulose; examples of sugar metal conductors include sodium alginate and starch conductors; these may be used in combination with the gelatin.

The graft polymer of gelatin and other polymers includes gelatin and derivatives such as acrylic acid, methacrylic acid, their esters and amides, and single (homo) or copolymers of vinyl monomers such as acrylonitrile and styrene. A grafted material can be used. Particularly preferred are graft polymers of gelatin with polymers that are compatible to some extent, such as acrylic acid, acrylamide, methacrylamide, hydroxyalkyl methacrylates, examples of which are described in U.S. Pat.
No. 3,825, No. 2,831,787, No. 2.958
, No. 884, etc.

In the light-sensitive material, 1 For example, the silver halide emulsion layer and other layers can be constructed by coating on one or both sides of a flexible support commonly used in photographic light-sensitive materials.In the present invention, the light-sensitive material The amount of gelatin on the silver halide emulsion layer side is preferably 10 g or less per lrn'.

Useful flexible supports include films made of semi-synthetic or synthetic polymers such as cellulose nitrate, cellulose acetate, cellulose acetate butyrate, polystyrene, polyvinyl chloride, polyethylene terephthalate, polycarbonate, baryta paper, or α-olefins. Examples include paper coated or laminated with a polymer (eg, polyethylene polypropylene, ethylene/butene copolymer), etc.

The support may be colored using a dye or pigment,
The surface of these supports, which may be colored blue for the purpose of blocking light, is generally subjected to an undercoat treatment to improve adhesion with silver halide emulsion layers and the like.

The undercoating treatment is as per JP-A-52-104913 and JP-A-59-1.
8!149, 5!3-1!1940, 59-1
The treatments described in each publication of No. 1941 2 are preferred.

The surface of the support may be subjected to corona discharge, ultraviolet irradiation, flame treatment, etc. before or after the undercoating treatment.

In light-sensitive materials, photographic emulsion layers and other hydrophilic colloid layers can be coated on a support or other surface by various coating methods. Application methods include dip application method, roller application method,
A curtain coating method, an extrusion coating method, etc. can be used.

Next, a method for processing a photosensitive material according to the present invention will be explained.

The present invention is characterized in that it uses an automatic developing machine with a line speed of 1500 mm/win or more and performs ultra-quick processing in which the developing, fixing, washing and/or stabilizing processing time is within 40 seconds.

A combination of dihydroxybenzenes and 1-phenyl-3-pyrazolidones is preferred as a developing agent used in a developer, especially a black and white developer, since it is easy to obtain good performance. It may also contain the main drug.

Examples of the dihydroxybenzene developing agent include hydroquinone, chlorohydroquinone, bromohydroquinone,
Isopropyl hydroquinone, methyl hydroquinone,
2,3-dichlorohydroquinone, 2,5-dichlorohydroquinone, 2,3-dibromohydroquinone, 2,
Examples include 5-dimethylhydroquinone, and hydroquinone is particularly preferred.

The developing agent for the above 1-phenyl-3-pyrazolidone or its derivative is 1-phenyl-4,4-dimethyl-3
-pyrazolidone, l-phenyl-4-methyl-4-hydroxymethyl-3-pyrazolidone, 1-phenyl-4,
Examples include 4-dihydroxymethyl-3-pyrazolidone.

The above-mentioned P-aminophenol developing agents include tomethyl-P-aminophenol, P-aminephenol, N-
(β-hydroxyethyl)-P-ami/phenol,
N-(4-hydroxyphenyl)glycine 2-methyl-
There are p-aminophenol, p-benzylaminophenol, etc., among which N-methyl-p-aminophenol is preferred.

The developing agent is usually preferably used in an amount of 0.01 mol/l to 1.2 mol/l.

Sulfites are used as preservatives in developing solutions, and examples of such sulfites include sodium sulfite, potassium sulfite, lithium sulfite, ammonium sulfite, sodium bisulfite, potassium metabisulfite, and sodium formaldehyde bisulfite. Sulfite is 0.2 mol/
It is preferably at least 0.04 mol/cross, especially at least 0.04 mol/cross, and preferably up to 25 mol/cross.

The pH of the developer is preferably in the range of 1f9 to 13, more preferably 1f to 12. pH
The alkaline agents used for Y4 adjustment include pH adjusters such as sodium hydroxide, potassium hydroxide, sodium carbonate, potassium carbonate, tribasic sodium phosphate, and tribasic potassium phosphate, as disclosed in JP-A No. 61-28708. (How ## Filling)
, JP-A No. 60-93439 (for example, sucrose
acetoxime, 5-sulfosalicylic acid), phosphate group,
Buffers such as carbonates may also be used.

Additives used in addition to the above components include development inhibitors such as sodium bromide, potassium bromide, and potassium iodide.
Organic solvents such as ethylene glycol, diethylene glycol, triethylene glycol, dimethylformamide, methyl cellosolve, hexylene glycol, ethanol, methanol, mercapto-based solvents such as 1-phenyl-5-mercaptotetrazole, 2-mercaptohenzimidazole-5-sulfonic acid sodium salt, etc. compound, an indazole compound such as 5-nitroindazole, an antifoaming agent such as a henttriazole compound such as 5-methylbenztriazole, and if necessary, a color toner, a surfactant, and an antifoaming agent. , water softener, JP-A-56-1
It may also contain the amine compound described in No. 08244.

In the present invention, a silver stain preventive agent, for example, the compound described in JP-A-56-24347, JP-A-5B-1, is added to the developer.
Amino compounds such as the alkanolamines described in No. 08244 can be used.

In addition, F.A. Menn's “Photographic
"Brosessin Chemistry", published by Focal Breath (
1986), pp. 226-229, U.S. Patent No. 2,19
No. 3,015, No. 2,592,384, JP-A-486
Those described in No. 4933 may also be used.

In the present invention, "development time" and "fixing time" respectively mean
The time from when the photosensitive material to be processed is immersed in the developing tank solution of the automatic processing machine until it is immersed in the next fixing solution, and from the time it is immersed in the fixing tank solution until it is immersed in the next washing tank solution (stable tank solution) "Washing time" refers to the time during which the product is immersed in the water washing tank solution, and "drying time" refers to the time during which the product is immersed in the washing tank solution.The "drying time" refers to the time during which the product is blown with hot air, usually at a temperature of 35°C to 100°C, preferably 40°C to 80°C. The drying zone is installed in the automatic processing machine, and refers to the time the machine is in that drying zone.

The development temperature and time are preferably about 25°C to 5 (15 seconds or less at 1'C, more preferably 30°C to 40°C).
℃ for 6 seconds to 15 seconds.

Next, the fixing solution is an aqueous solution containing thiosulfuric acid, p) 13
, preferably 8 or more, more preferably P)! 4.2～
It is 55.

As a fixing agent, there are sodium thiosulfate and ammonium thiosulfate, but they contain thiosulfate ions and ammonium ions as essential components, and ammonium thiosulfate is particularly preferred from the viewpoint of fixing speed.The amount of fixing agent used may be changed as appropriate. and generally from about 0.1 to about 6 moles/liter.

The fixer may also contain water-soluble aluminum blocks that act as hardeners, such as aluminum chloride, ammonium sulfate, potash alum, and the like.

In the fixing solution, tartaric acid, citric acid, or their salts can be used alone or in combination of two or more. Those containing 0.005 mol or more of these compounds per fixer 12 are effective, especially 0.01 mol/liter to 0.03 mol/liter.
dan is valid. Specifically, tartaric acid, potassium tartrate,
These include sodium tartrate, potassium sodium tartrate, citric acid, sodium citrate, potassium citrate, lithium citrate, and ammonium citrate.

The fixer may optionally contain preservatives (e.g. sulfites, bisulfites), pHI buffers (e.g. acetic acid, nitric acid).
, a pH adjuster (for example, sulfuric acid), a chelating agent with water softening ability, and a compound described in Japanese Patent Application No. 80-213582.

The fixing temperature and time are preferably 3 seconds to 30 seconds at about 0°C to about 50°C, more preferably 6 seconds to 30 seconds at 30°C to 40°C, and still more preferably 6 seconds to 30°C to 40°C. It is 15 seconds.

When the fixer concentrate is replenished with water to dilute it as the photographic material is processed in the method of the present invention, it is most preferred that the fixer concentrate is composed of one part. The same is true for developer.

The fixer stock solution can exist stably as a single agent at pH 4,
5 or more, more preferably pH4J5 or more.

p! (If the pH is less than 4.5, the thiosulfate will decompose and eventually become sulfided, especially if the fixer is left for many years before it is actually used.
In a range of 5 or more, less sulfur dioxide gas is generated and the working environment is improved. The upper limit of pH is not so strict, but if the fixing is done at too high a pH, the pH of the membrane will be high even after subsequent washing with water, the membrane will swell, and the drying load will increase, so the upper limit is around pH 7. Fixer that uses aluminum salt to harden the film prevents precipitation of aluminum salt (P)
The limit is up to H5.5.

In the present invention, either the developing solution or the fixing solution may be a so-called working solution that does not require dilution water as described above (that is, it is replenished as an undiluted solution).

The amount of each concentrated solution supplied to the processing tank solution and the mixing ratio with dilution water can be varied depending on the composition of the concentrated N solution, but generally the ratio of concentrated solution to dilution water is 1:0 to 8. In proportion, the total amount of each of these developer-fixers is 1 part of the photosensitive material.
Preferably, the range is 50 to 1500 mM for m'.

In the present invention, the photosensitive material L± is subjected to water washing or stabilization treatment after development and fixing.

Any method known in the art can be applied to the washing or stabilization treatment, and water containing various additives known in the art can also be used as the washing water or stabilizing liquid. By using anti-mold water for washing water or stabilizing liquid, not only is it possible to save water by replenishing less than 3 ml per rn'm of photosensitive material, but it also reduces the need for piping for installing an automatic processing machine. This makes it unnecessary, further reducing the number of stock tanks.

That is, the solution dilution water and washing water or stabilizing solution for the developer and fixer can be supplied from a common single-layer stock tank, making it possible to further downsize the automatic developing machine.

If anti-mildew water is used in combination with washing water or stabilizing liquid, the formation of lime scale can be effectively prevented.
0 to 3 sentences per ', preferably 0 to 1 sentence, can be performed for water saving treatment.

Here, when the replenishment amount is 0, no replenishment is performed at all except for appropriately replenishing the amount of washing water in the washing tank that has decreased due to natural evaporation, etc. In other words, the so-called "reservation water" is essentially not refilled. Refers to cases in which a processing method is used.

As a method of reducing the amount of replenishment, a multistage countercurrent system (for example, two stages, three stages, etc.) has been known for a long time. If this multi-stage countercurrent method is applied to the present invention, the photosensitive material in the fixer will be processed in a progressively cleaner direction, that is, in sequential contact with the processing solution that is not contaminated with the fixer, resulting in even more efficient processing. Washing is done. According to this, unstable thiosulfates and the like are appropriately removed, the possibility of discoloration and fading is further reduced, and an even more significant stabilizing effect can be obtained. The amount of water used for washing is also much smaller compared to conventional methods.

When washing with a small amount of washing water, use the patent application Sho Go-1729.
It is more preferable to provide a squeeze roller cleaning tank as described in No. 68.

Further, part or all of the overflow liquid from the washing or stabilizing bath, which is generated by replenishing the washing or stabilizing bath with water treated with anti-mildew means according to the treatment, is disclosed in Japanese Patent Application Laid-Open No. 80-23
As described in Japanese Patent Application No. 5133, it can also be used in a processing liquid having a fixing ability, which is a processing step before that. This is more preferable because the stock water can be saved and the amount of waste liquid can be reduced.

As anti-mildew methods, there are the ultraviolet irradiation method described in Japanese Patent Application Laid-Open No. 2007-283939, the method using a magnetic field described in Japanese Patent Application Publication No. 80-283940, and the method using ion exchange resin described in Japanese Patent Application Publication No. 61-131832. How to make pure water, patent application 1986
Go-253807, Go-295894, Go-61-8
The method using a fungicide described in No. 3030 and No. 6151396 can be used.

Furthermore, L, E, West “Water Quali
tyCrit[! riaPboto Sci & En
g, Vol, 9 No. 5 (1985), X, W.
Beach″Microbiological Gro
wths in Motion-PicturePro
cassing-! JPTE Journal Vol.
, 85. (1976) R, O, Deegan, +P
hotoProcessingWashWater
Biocides''J, 1maging Tech, V
ol, IO, No. 6 (1984) and JP-A-57-8
No. 542, No. 57-b8143, No. 58-10514
5, No. 57-132148, No. 58-18G31, No. 57J7530, No. P2S5-157244, and the like can also be used in combination with antibacterial agents, anti-spiking agents, surfactants, and the like.

Furthermore, for the washing bath, R.T. Kreiman J.Ima
ge, Techlo, (B) 242 (1984), I? ESEARCH
Disc: LO5URE Volume 205, Item 2052
Isothiazoline compounds described in B (May 1981 issue), Fl@ Vol. 228, H8m22845 (198
Compound 1 described in Japanese Patent Application No. 81-51396, etc., can also be used in combination as an antibacterial agent (Xicrabiocide).

Furthermore, specific examples of fungicides include phenol, 4-chlorophenol, pentachlorophenol, cresol, and 0-
Phenylphenol, chlorophene dichlorophene,
Formaldehyde, geltaraldehyde, chloracetamide, p-hydroxybenzoic acid ester, 2-(4
-thiazoline)benzimidazole, benzothiazoline-3one, dodecyl-hensyl-dimethylammonium-chlorite, N-(fluorodichloromethylthio)-phthalimide, 2,4.4'-)lichloro2'-
Hydroxydiphenyl ether, etc.

The water treated with antifungal means and stored in a water stock tank can be used as dilution water for the stock solutions such as the developer and fixer, and the amount of antifungal agent added is preferably 0.01-10 g/liter. More preferably O-1 to sir/5Lvas.

Furthermore, in addition to the silver image stabilizer, various surfactants can be added to the washing water for the purpose of preventing uneven water droplets. Any of cationic, anionic, nonionic, and amphoteric surfactants may be used as the surfactant. For example, specific examples of surfactants are listed in the "Surfactant Handbook" published by Kogaku Tosho Kabu. There are compounds listed.

Various compounds are added to the stabilizing bath for the purpose of stabilizing the image. For example, to adjust the membrane pH (for example, pH 3
~8) various buffering agents (e.g. boric acid group, metaboric acid mound, borax, phosphate, carbonate, potassium hydroxide, sodium hydroxide, aqueous ammonia, monocarboxylic acid, dicarboxylic acid, polycarboxylic acid) Typical examples include aldehydes such as (used in combination) and formalin. In addition, chelating agents, fungicides (thiazole-based, inthiazole-based, halogenated phenols, sulfanilamide, hensitriazoles, etc.), surfactants,
Various additives such as optical brighteners and hardeners may be used, and two or more compounds for the same or different purposes may be used in combination.

Further, it is preferable to add various ammonium additives such as ammonium chloride, ammonium nitrate, ammonium sulfate, ammonium phosphate, ammonium sulfite, and ammonium thiosulfate as film ppy4 modifiers to the processing solution in order to improve image storage stability.

Water washing or stabilization bath temperature and time by the above method is 0℃
~50°C for 3 seconds to 30 seconds is preferred, but 15°C to 40°C
more preferably from 6 seconds to 30 seconds, and more preferably from 15°C to 40°C.
C. for 6 seconds to 15 seconds is preferred.

According to the method of the present invention, the developed, fixed and washed photographic material is dried by squeezing out the washing water, that is, by using a squeeze roller method. Drying is carried out at about 0°C to about 100°C, and the drying time can be changed as appropriate depending on the surrounding conditions, but usually it is about 5 seconds to 1 minute, but preferably at 40°C.
~80°C for about 5 seconds to 30 seconds.

In the present invention, an even more excellent effect is exhibited in that the lower the swelling percentage of the photosensitive material, the shorter the drying time thereof.

According to the method of the present invention, the so-called Dary-to-Dry processing time for development, fixing, washing, and drying is within 100 seconds, preferably within 60 seconds, and more preferably within 50 seconds. .

Here, "dry to dry" refers to the time from the moment the leading edge of the photosensitive material to be processed enters the film insertion section of the automatic processor to the moment the leading edge emerges from the processor after being processed.

〔Example〕

Hereinafter, the present invention will be explained in more detail with reference to Examples, but the present invention is not limited to these Examples.

(Preparation of coating solution for emulsion layer) In a container heated to 40°C containing gelatin, sodium chloride, and water, add a silver nitrate aqueous solution and 2 x 10-6 moles of hexachloro per 1 l of silver chloride. A mixed aqueous solution of potassium bromide and sodium chloride to which potassium iridate salt and 4 x 10-7 hexabromolodium salts were added was added by a double jet method to obtain silver chlorobromide containing 35 mol% silver bromide. Particles (width of distribution 9%, cubic crystal, particle size 0
, 25 string layer) was adjusted while maintaining the pH at 3, 0pAg at 7.7, and after returning the pH to 5.9, it was desalted by a conventional method.

This emulsion was sensitized with gold and sulfur, 60 mg of sensitizing dye (a) was added per mole of silver halide, and
Per mole, 70 g of 1-phenyl-5-mercaptotetrazole, 4-hydroxy-6-methyl-1,3
, 3a, 1.2 g of 7-tetrazaindene and gelatin were added to stop the ripening, and then 4 g of /\hydroquinone was added.
, 3 g of potassium bromide, 5 g of saponin, 2 g of styrene-maleic acid copolymer, and 3 g of ethyl acrylate polymer latex were added, and l-hydroxy-3,5-dichlorotriazine sodium salt was added as a hardening agent. was prepared by adding.

Sensitizing dye (a) (Preparation of coating solution for protective layer) To an aqueous solution of 500 g of gelatin, add log potassium bromide and 4 g of sodium 1-decyl-2-(3-isopentyl)succinate-2-sulfonate to form an average particle size. It was prepared by adding and dispersing 100 g of amorphous silica having a diameter of 5 gm.

(Preparation of coating solution for antihalation layer) Next, a fluorescent brightener and dye dispersed as shown below were added to an aqueous solution of 40 g of gelatin as shown in Table 1, and styrene-maleic acid was added as a thickener. A 4% aqueous solution of the copolymer was added to prepare a coating solution for an antihalation layer.

Oil-soluble optical brightener Preparation of emulsified dispersion Oil-soluble optical brightener 5. Dissolve Og in a mixed solution of 200+s of cresyl diphenyl phosphate and 100% of ethyl acetate, and add the entire solution to a 12% aqueous gelatin solution containing 3g of sodium tripropylnaphthalene sulfonate.
00 mu and emulsified and dispersed using an ultrasonic dispersion machine, and then 200 g of butyl acrylate polymer latex was added as a solid content to prepare an oil-soluble optical brightener emulsion dispersion.

(Preparation of Samples) The antihalation layer coating solution, emulsion layer coating solution and protective layer coating solution prepared in this manner were coated with a hydrophilic colloid backing material (having at least one silver halide emulsion layer on the support). Three layers were simultaneously coated on a 110 mm thick polyethylene coated paper containing 15% Ti (b) and an undercoat layer (provided on the opposite side to the surface).

The coating amount of the obtained sample was 1.4 g/nf, the gelatin coating amount was 0.8 g/rn' for the antihalation layer, and 1.2 g/rn' for the emulsion layer. g/rn', and the protective layer was O.1 g/rn'.

A portion of the sample thus obtained was overlaid with a 7th grade Mincho negative character image taken with line drawing film, and an optical wedge and Kodak Wratten filter N were used.

After exposure to xenon flash for 10-5 seconds through 88A, it was processed using the following developer and fixer under the following conditions in an ordinary roller-type automatic processor to improve the appearance of white melon, residual color, shelf life, Image quality was evaluated.

(White melon) Visual evaluation of white melon was performed using the sample obtained through the above treatment.
The evaluation was done on a five-point scale, with 5 being the best, 1 being the worst, and 3 or higher being acceptable for practical use.

(Residual color) The residual color is evaluated on a scale of 10, with 10 being the best and 1 being the best.
~4 is an unusable level, and 5 or higher is a usable level.

(Sensitivity) Sensitivity is measured using a reflective densitometer, fog density (unexposed area) +
The value of the reciprocal of the exposure amount when giving a density of 16 is sample No.
The sensitivity is expressed as a relative value, with the sensitivity immediately after application of No. 1 being 100. Further, after coating, a heat treatment was performed at 50° C. 50% for 3 days, and measurements were also performed after the following treatment.

(Image quality) The image quality was evaluated visually using a 100x magnifying glass on the letters on the sample obtained through the above processing, and on a five-point scale, 5 was the best, 1 was the best.
A rating of 3 or higher was considered practical.

(Development processing conditions) (Process) (Temperature) (Time) Development 35℃ 12 seconds fixing 34℃ 12 seconds washing with water Room temperature 12 seconds drying 50℃ 10 seconds Developer formulation (composition A) Pure water (ion-exchanged water) ) 150t9-
Ethylenediaminetetraacetic acid disodium salt 2g diethylene glycol 50g potassium sulfite (55% il/v aqueous solution) 100mM potassium carbonate 50g hydroquinone 15g 5-methylhensitriazole 200 layers g1-phenyl-
5-Mercaptotetrazole potassium hydroxide Deepest potassium to make p)l 10.4 after use
4.5g (composition) Pure water (ion-exchanged water) 3M diethylene glycol 50g ethylenediaminetetraacetic acid disodium kg 2511g acetic acid (
90% aqueous solution) 0.3+s sentence 5 Nitroindazole 110mg1-
When using 500 mg of phenyl-3-pyrazolidone developer, the above composition A was dissolved in the order of composition A and composition 12 in 5 QOm of water and used.

Fixer formulation (composition A) Ammonium thiosulfate (72.5% W/V aqueous solution) 24
0m sodium sulfite 17g sodium acetate trihydrate 6.5g boric acid
6g sodium citrate trihydrate 8g acetic acid (90%-/V aqueous solution) 13. FI intestine (composition) Pure water (ion-exchanged water) 17 ml sulfuric acid (50% aqueous solution) 4.7
.

Aluminum sulfate (A4 203 equivalent content 8.1% W/V aqueous solution) 2
When using 8.5g fixer, 500ml of water is required. The above composition A was dissolved in the order of composition A, and the composition was made into one sentence. The pH of this fixer was about 4.3.

Line speed Processing time listed in Table 1 Processing time: 36 seconds When changing the line speed at the same processing time, the depth of the cypress and the number of rollers were adjusted.

The obtained evaluation results are shown in Table 1.

As is clear from Table 1, Samples 6 to 13 of the present invention have good image quality, improved white charcoal, good sensitivity storage stability, and little residual color even when subjected to ultra-rapid processing.

In sample No. 6, an oil-soluble optical brightener (+1=1
3) to (II-2), (II-9), (II-16),
The same experiment was conducted with the only difference being that (rl-25) and (II-28) were substituted, and the effects of the present invention were confirmed in both cases.

〔Effect of the invention〕

According to the present invention, it is possible to provide a processing method that provides high image quality, improved white charcoal, good sensitivity storage stability, and less residual color even when ultra-rapid processing is performed.

Claims (2)

[Claims] (1) In a method for processing a silver halide photographic material having a hydrophilic colloid layer including at least one infrared sensitized photosensitive silver halide emulsion layer on a support, the hydrophilic colloid layer is at least one layer contains at least one water-soluble dye having an absorption maximum at 700 nm or more, and the hydrophilic colloid layer containing the dye or the other hydrophilic colloid layer contains an oil-soluble optical brightener, and developing·
A method for processing a silver halide photographic material, characterized in that all processes of fixing, washing and/or stabilization are carried out in a processing time of 40 seconds or less using an automatic developing machine with a line speed of 1500 mm/min or more. (2) The method for processing a silver halide photographic material according to claim 1, wherein the hydrophilic colloid layer containing the dye and the oil-soluble optical brightener is an antihalation layer.