JPH083604B2 - Method for producing silver halide photographic light-sensitive material having improved roller mark property - Google Patents

Description

TECHNICAL FIELD The present invention relates to a method for producing a silver halide photographic light-sensitive material, and more particularly to a method for producing a high-sensitivity silver halide photographic light-sensitive material which does not cause pressure blackening. .

BACKGROUND OF THE INVENTION In the field of silver halide photographic light-sensitive materials, generally, in the production of silver halide emulsion, steps such as formation of silver halide grains, physical ripening, desalting, and chemical sensitization are carried out.
A dye is added to a silver halide photographic emulsion in order to improve the sensitivity during such a process. The first conventional method is, after chemical sensitization, before coating or in US Pat. No. 4,425,426. As described above, there is a technique to be performed before the start of chemical sensitization or during the chemical sensitization. Second,
U.S. Pat.Nos. 2,735,766, 3,628,960, 4,183,756
No. 4,225,666 each specification and JP-A-58-184142,
There is a technique of adding during the grain formation (during physical ripening) as described in the gazettes of 61-19628, 61-103149 and 61-205929. Third, JP-A-61-103149,
As described in JP-A-61-196238, there is a technique of adding in the latter half of particle growth such that the shape of particles does not substantially change, and after the particle formation and before the desalting step.

However, the first prior art has a problem in that the dye is weakly adsorbed to silver halide, and therefore can be applied only to a case where a dye having high sensitizing ability and strong adsorbing power is used. On the other hand, the second and third spectral sensitization techniques have a strong dye adsorbing power and are excellent as spectral sensitization techniques.

However, a silver halide photographic light-sensitive material that has been spectrally sensitized by using such a spectral sensitization technique is not sufficient in so-called pressure blackening, which is blackened by pressure generated when the light-sensitive material is bent. There's a problem.

In particular, in recent years, in the case of processing using an automatic developing machine, the occurrence of pressure blackening due to a roller has become a problem with the increase in sensitivity of silver halide photographic light-sensitive materials. Therefore, as a method of improving the pressure blackening by the roller, that is, the roller mark property, there is a method of using a material such as polyacrylamide described in JP-A-60-166944. Improvement is inadequate.

Therefore, the present inventors have conducted various studies to improve the roller mark property, and in a silver halide photographic light-sensitive material obtained by using a normal sensitization technique, specify the pH and EAg of the photographic light-sensitive material. As a result, the present invention has been made on the basis of the unexpected finding that the roller mark property is improved.

[Object of the Invention] An object of the present invention is to provide a method for producing a high-sensitivity silver halide photographic light-sensitive material which maintains high sensitivity and improves pressure blackening by a roller or the like, that is, roller mark property.

[Constitution of the Invention] The above object of the present invention was obtained by adding a spectral sensitizing dye to at least one of a silver halide grain forming step, a physical ripening step and a desalting step on a support. A silver halide photographic light-sensitive material is manufactured by providing at least one silver halide emulsion layer, and the pH of the resulting silver halide photographic light-sensitive material is ≧ 5.5 and EAg ≦ 130 mV. This is achieved by the method for producing a silver halide photographic light-sensitive material.

 Hereinafter, the present invention will be described more specifically.

A silver halide emulsion is usually prepared by forming silver halide grains by means of metathesis of a soluble salt and a soluble halide in an aqueous gelatin solution, physically ripening and desalting, and further chemically sensitizing. Is. In the present invention, firstly, a spectral sensitizing dye is added to a silver halide emulsion to obtain a high-sensitivity silver halide emulsion. The addition of the spectral sensitizing dye is carried out by a silver halide grain forming step, a physical ripening step and It is performed in at least one of the desalting steps.

The step of forming silver halide grains is the formation of silver halide grains by metathesis of soluble silver salt and soluble halide, and the physical ripening step is heating in the presence of excess halogen salt or excess halogen salt and ammonia. It means that the silver halide crystals are grown to an appropriate size by stirring. Further, in the present invention, the desalting step means a step of removing soluble salts which is carried out after the formation of emulsion grains is completed (after the formation of a precipitate or after the physical ripening). That is, the removal of salts after the formation of the silver halide grains is completed, that is, after the formation of the precipitate or further after the completion of the physical ripening is referred to as a desalting step.

In the desalting process, a series of operations such as adding a desalting agent, allowing to stand and decanting is usually repeated at least once, and usually this is repeated several times, and after that, gelatin is generally added later (after-mentioned) to disperse and the process is completed. After that, the chemical sensitization step is started, and the desalting step in the present invention refers to after precipitation formation or physical ripening and before chemical sensitization (at least after the gelatin addition step).

There are various means for desalting, for example, there is a Nuder water washing method which is performed by gelling gelatin which has been known for a long time, and inorganic salts composed of polyvalent anions (for example, sulfates such as sodium sulfate), Precipitation method (flocculation) using an anionic surfactant, anionic polymer (eg polystyrene sulfonic acid) or gelatin derivative (eg aliphatic acylated gelatin, aromatic acylated gelatin, aromatic carbamoylated gelatin) There is a method of using.

A preferable desalting means is to use sulfate (MgSO ₄ , N
a ₂ SO ₄ or the like) or an anionic polymer (polystyryl sulfonic acid-based polymer as described in Japanese Patent Publication No. 35-16086, etc.) or a side chain described in JP-A No. 62-32445. Vinyl polymers with carboxylic acids, etc.)
Is used. More specifically, the point of time (addition position) at which the spectral sensitizing dye is added to each of these steps is arbitrary during the silver halide grain forming step, the physical ripening step and the desalting step.

Preferably, post-gelatin, i.e., gelatin added after dispersion to redisperse the silver halide grains, is added,
Added. Further, the same and / or another spectral sensitizing dye may be added to the silver halide grains thus obtained before or after the chemical sensitization.

In the present invention, the preferred position for adding the sensitizing dye is the desalting step.

The method for adding the spectral sensitizing dye is arbitrary, and for example, the spectral sensitizing dye can be dissolved in water or an organic solvent and added to the emulsion. The substantially water-insoluble spectral sensitizing dye is
It can be used as a dispersion dispersed in a water-insoluble solvent. The total amount of the spectral sensitizing dye may be added at one time, divided into several parts, or continuously added for a predetermined time.

The pH of the emulsion during the desalting step is preferably 3.5 to 9.5.
Therefore, it is necessary to add the spectral sensitizing dye during the step because the pH is
Time points between 6.0 and 9.5 are preferred.

The pAg of the emulsion during the desalting step is preferably 4.9
It is ~ 12.5, and it is pA to add the spectral sensitizing dye.
The time when g is 8.0 to 12.5 is preferable.

Various types of spectral sensitizing dyes can be used. For example, cyanine dyes, merocyanine dyes, composite cyanine dyes, composite merocyanine dyes, holopolar cyanine dyes, hemicyanine dyes, steryl dyes, and hemioxanol dyes can be used.

Particularly useful dyes are cyanine dyes, merocyanine dyes and complex merocyanine dyes. Any of the nuclei normally used for cyanine dyes as a basic heterocyclic nucleus can be applied to these dyes. That is, a pyrroline nucleus, an oxazoline nucleus, a thiazoline nucleus, a pyrrole nucleus, an oxazole nucleus, a thiazole nucleus, a selenazole nucleus, an imidazole nucleus, a tetrazole nucleus, a pyridine nucleus, and a nucleus in which an alicyclic hydrocarbon ring is fused to these nuclei: and these A nucleus in which an aromatic hydrocarbon ring is fused to the nucleus, that is, an indolenine nucleus, a benzindolenine nucleus, an indole nucleus, a benzoxazole nucleus, a naphthoxazole nucleus, a benzothiazole nucleus, a naphthothiazole nucleus, a benzosalenazole nucleus, a benzimidazole nucleus. , Quinoline nucleus and so on. These nuclei may be substituted on carbon atoms.

In the merocyanine dye or the complex merocyanine dye, pyrazolion-5-
Applying 5- or 6-membered heterocyclic nuclei such as on nucleus, thiohydantoin nucleus, 2-thiooxazolidine-2,4-dione nucleus, thiozolidine-2,4-dione nucleus, rhodanine nucleus, and thiobarbituric acid nucleus You can These sensitizing dyes may be used alone or in combination. Specifically, for example, 22-of RD (Research Disclosure) 1743
P. 24, RD18716, page 648, right column and below, and
The dyes described in No. 61-80237 can be preferably used.

Secondly, in the present invention, the pH of the silver halide photographic light-sensitive material is required to be ≧ 5.5 and EAg ≦ 130 mV, and the method for adjusting the pH to ≧ 5.5 is not particularly limited, and the obtained halogen It is adjusted at any time of the silver halide emulsion, for example, immediately before the coating of the silver halide emulsion and / or the protective layer, or
Alternatively, a photographic light-sensitive material may be produced and then processed to bring the pH to 5.5 or more. In addition, EAg ≦
When it is set to 130 mV, it may be carried out immediately before the coating of the silver halide emulsion, or after the photographic light-sensitive material is prepared, it may be processed so that EAg ≦ 130 mV.

The composition of the silver halide grains in the above emulsion according to the present invention is arbitrary, for example, halogenated silver chloroiodobromide, silver chloride, silver chlorobromide, silver bromide, silver iodobromide, silver iodide, etc. It just needs to be silver. From the viewpoint of high sensitivity, silver iodobromide is preferable. Further, the average silver iodide content in silver iodobromide is preferably 0.1 to 10 mol%, and particularly preferably 1 to 8 mol%. The average grain size of the silver halide grains is preferably 0.2 to 8.0 μm, more preferably 0.3 to 1.5 μm.

The internal structure of the silver halide grains is arbitrary, but those having a multilayer structure of two or more layers can be preferably used. In this case, it is preferable to have a layer made of silver iodobromide in which the difference in silver iodide (AgI) content from the adjacent layer is 20 mol% or more as compared with the layer adjacent to the outside of the grain. Further, each layer is preferably silver bromide or silver iodobromide. The localized portion in which a high concentration of 20 mol% or more of silver iodide is localized is preferably located as inward as possible from the outer surface of the grain, and particularly the localized portion is 0.01 μm or more from the outer surface. Preferably present.

The emulsion according to the present invention may be either a monodisperse emulsion or a polydisperse emulsion, but it is preferably a monodisperse emulsion. By doing so, it is possible to sufficiently perform a sensitizing treatment such as chemical sensitization,
Extremely high sensitivity can be obtained, and softening due to the sensitization process is little, so that a high contrast can be obtained.

To prepare a monodisperse emulsion, crystal grain growth is generally first performed. In the grain growth, regarding the addition of the silver ion and the halide solution, both may be alternately performed in a time series, but the so-called double jet method is preferable.

In order to obtain the above-mentioned monodisperse emulsion, it is particularly preferable to use a seed crystal and grow grains by using this seed crystal as a growth nucleus and supplying silver ions and halide ions.

The wider the grain size distribution of this seed crystal, the wider the grain size distribution after grain growth. Therefore, in order to obtain a monodisperse emulsion, it is preferable to use one having a narrow grain size distribution at the seed crystal stage.

The silver halide emulsion is usually chemically sensitized to sensitize the grain surface. However, when the chemical sensitization is performed after the desalting step in the present invention, at least a part of the spectral sensitizing dye has already been added as described above. Has been added to.

When chemical sensitization is performed in the present invention, a sulfur sensitizing method using a compound containing sulfur capable of reacting with silver ions or active gelatin, a reduction sensitizing method using a reducing substance, a noble metal sensitizing method using gold or other noble metal compound. The method and the like can be performed alone or in combination. Preferably, gold sensitization and sulfur sensitization are used together. As the sulfur sensitizer, thiosulfates, thioureas, thiazoles, rhodanines and other compounds can be used. As the reduction sensitizer, first, salts, amines, hydrazine derivatives, formamidinesulfinic acid, silane compounds and the like can be used. For sensitizing a noble metal, in addition to a gold complex salt, a complex salt of a metal of Group VIII of the periodic table such as platinum and iridium can be used.

The coated silver amount is arbitrary, but preferably 1000 mg / m ² or more 1
5000 mg / m ² or less, more preferably 2000 mg / m ² or more
It is 10000 mg / m ² or less.

Gelatin is advantageously used as the binder or protective colloid of the photographic emulsion according to the present invention, but other hydrophilic colloids can also be used.

In the present invention, at least one emulsion layer comprising the emulsion according to the present invention is formed when used as a light-sensitive material. The emulsion layer is usually formed by coating an emulsion on a support, but the emulsion layer may be formed on one side or both sides of the support, and the emulsion layer according to the present invention may be any layer. It suffices that there be at least one layer on the side. Layers of emulsions other than the emulsions of the present invention may be present. Further, it goes without saying that a protective layer, an intermediate layer and other non-photosensitive layers may be present.

The above-mentioned emulsion according to the present invention or, if necessary, the other emulsion used in the light-sensitive material according to the present invention may be produced in any basic method, for example, any of the acidic method, the neutral method and the ammonia method. The method of reacting the soluble silver salt with the soluble halogen salt may be any of a one-sided mixing method, a simultaneous mixing method, a combination thereof and the like. A method of forming grains in the presence of excess silver ions (so-called reverse mixing method) can also be used. As one type of simultaneous mixing method, a method of keeping pAg constant in a liquid layer in which silver halide is formed, that is, a so-called controlled double jet method can be used. As described above, this method is preferable because a silver halide emulsion having a regular crystal form and a substantially uniform grain size can be obtained.

Two or more kinds of silver halide emulsions formed separately may be mixed and used.

Further, tabular grains having an aspect ratio of 5 or more can also be used as silver halide grains in the emulsion. The tabular grains may have the layer structure as described above.

 Also, a mixture of particles having various crystal forms may be used.

In the process of silver halide grain formation or physical ripening, a cadmium salt, a zinc salt, a lead salt, a thallium salt, an iridium salt or a complex salt thereof, a rhodium salt or a complex salt thereof, an iron salt or an iron complex salt may be present together.

During the formation of silver halide grains, ammonia, thioether compounds, thione compounds and the like may be used as a silver halide solvent in order to control grain growth.

In obtaining an emulsion, the properties of silver halide grains can be controlled by allowing various compounds to be present in the silver halide precipitation forming process. Such compounds may be initially present in the reactor, or they may be added along with one or more salts according to conventional methods. The properties of silver halide can also be controlled by allowing compounds of copper, iridium, lead, bismuth, cadmium, zinc, gold and Group VII noble metals to be present during the silver halide precipitation formation process.

Additives used in the process of producing an emulsion include Research Disclosure 176, No. 17 in addition to those described above.
643 (December 1978) and 187, No. 18716 (November 1976
Month), and the relevant parts are summarized in the following table.

Known photographic additives that can be used in the preparation of the light-sensitive emulsion in the practice of the present invention are also described in the above two Research Disclosures, and the location of the description is shown in the following table.

[Examples] Hereinafter, the present invention will be described in more detail by showing Examples of the present invention, which is for that purpose, and the present invention is limited by the Examples described below. Not a thing.

Example 1 A monodisperse cubic emulsion of silver iodobromide (A) containing 2 mol% of silver iodide having an average grain size of 0.3 μm was prepared by a double jet method while controlling at 60 ° C., PAg = 8.0 and pH = 2.0. Obtained. When this emulsion was observed with an electron micrograph, the occurrence rate of twins was 1% or less calculated by the number.

Using this emulsion (A) as a seed crystal, crystals were grown as follows.

Step 1 The emulsion (A), which is a seed crystal, was dissolved in 8.5 l of a protected gelatin (containing ammonia if necessary) solution kept at 40 ° C., and acetic acid was further added to adjust.

Step 2 To the liquid obtained in Step 1, 3.2N aqueous ammoniacal silver ion solution was added by the double jet method. At this time, adjust the pH to 9.
7. PAg was controlled to 7.3 to form an emulsion having a silver iodide content of 35 mol%.

Step 3 Next, change the pH from 9.0 to 8.0 until the particle size reaches 90%,
PAg was kept at 9.0 and grown.

Step 4 After that, potassium bromide solution is added using a nozzle over 8 minutes to bring the PAg to 11.0. Mixing was completed 3 minutes after the completion of the addition of potassium bromide.

Step 5 Next, the pH was adjusted to 6.0 with acetic acid. This emulsion has an average grain size of 0.65 μm and the silver iodide content of the entire grain is about 2 mol%.

(Desalination step) Step 6 The reaction solution was kept at 40 ° C., and compound (I) 5 g / AgX 1 mol, MgS
O ₄ was added 8 g / AgX1 mol, stirred for 5 minutes and then allowed to stand. After leaving still, drain the supernatant liquid, 200cc per 1 mol of AgX
To the liquid level. Subsequently, pure water at 40 ° C. was added in an amount of 1.8 l / Ag × 1 mol, and the mixture was stirred for 5 minutes.

Step 7 then MgSO ₄ 20 g / AgX1 mol was added, similarly stirred standing and step 6 was subjected to desalting by discharging the supernatant. The desalted solution was then stirred.

Step 8 Subsequently post-gelatin was added to redisperse the AgX. The resulting emulsion was kept at 55 ° C.

Step 9 After that, ammonium thiocyanate, chloroauric acid and hypo were added to perform gold-sulfur sensitization.

After completion of this chemical sensitization, 4-hydroxy-6-methyl-
1,3,3a, 7-Tetrazaindene was added. (In these steps, steps 1 to 4 are particle forming steps and step 5
~ The physical aging step is until the addition of the compound (I) is started. ) Spectral sensitizing dyes ~ were added at the end of each of the above steps to obtain the samples shown in Table 1. Table 1 shows the addition position of the dye, the type and amount of the dye.

After the above emulsion and the coating solution for protective layer were simultaneously coated on both sides of a polyester film support having an undercoating layer, from the support side, two layers of a silver halide emulsion layer and a protective layer were simultaneously coated.
A silver halide photographic film was prepared by drying and used as a sensitometry sample.

The following additives were added to the emulsion layer per mol of silver halide.

t-Butylcatechol 400 mg Polyvinylpyrrolidone (molecular weight 10,000) 1.0 g Styrene-maleic anhydride copolymer 2.5 g Trimethylolpropane 10 g Diethylene glycol 5 g Nitrophenyl-triphenylphosphonium chloride 50 mg 1,3-Dihydroxybenzene-4-sulfonic acid Ammonium 4g 2-Mercaptobenzimidazole-5-sodium sulfonate 15mg 1,1-dimethylol-1-bromo-1-nitromethane
10 mg The following compounds were added to the protective layer per 1 g of gelatin.

Polymethylmethacrylate (matting agent) with an average particle size of 5 μm 7 mg Colloidal silica (average particle size 0.013 μm) 70 mg (CHO) ₂ 8 mg HCHO 6 mg [Subbing liquid] Glycidyl methacrylate 50 wt%, methyl acrylate 10 wt%, butyl methacrylate 40 wt% A copolymer composed of three types of monomers was diluted to a concentration of 10 wt% to obtain an aqueous copolymer dispersion.

Next, of the undeveloped film which is a sensitometric sample
Regarding pH and EAg, an aqueous sodium carbonate solution was added to the coating solution for the emulsion layer or the protective layer for pH, and for EAg,
A desired amount of potassium bromide aqueous solution was added to the emulsion layer coating solution to obtain the values shown in Table 1. The pH and EAg of the film were measured by the following procedure and measurement procedure.

[Process measurement procedure] 1. Cut 100 sheets of undeveloped film into 3 x 0.5 cm.

2. Put 40cc water in a beaker and immerse the film in it.

It stagnates in a constant temperature bath at 3.50 ° C for 4 hours with stirring.

4. Then measure pH and EAg at 40 ° C.

[Sensitometry measurement] The standard light B described in "New Edition, Lighting Data Book", Illuminating Society of Japan, 1st edition, 2nd printing, page 39 was used as the light source, and Table 1 was used.
All samples shown in No. 1-1 to 3-10 are exposed
A so-called white exposure was performed in which non-filter exposure was performed at 3.2 CMS in 0.1 seconds.

Sample Nos. 2-1 to 2-14 were exposed to blue light by inserting "Ratten filter No. 47" in the optical path 15 cm from the light source under the same conditions as above. For sample No. 1-1 to 1-27, similarly, "Ratten filter No. 58" was inserted and green exposure was performed, and for sample No. 3-1 to 3-10, "Ratten filter No. 2" was added.
5 "was inserted and red exposure was performed. Here, these exposures were performed from both sides of the film so that both sides of the film had the same amount of light. The sample is Konica KX-500
The sensitivity of each sample was determined by processing for 90 seconds with an XD-90 developing solution using an automatic processor.

For the sensitivity, the reciprocal of the amount of light required to increase the blackening density by 1.0 by exposure was obtained. In Table 1, sample No2-
The white and blue sensitivities of 1 to 2-14 are the same as those of No. 2-13.
The white and green sensitivities of sample Nos. 1-1 to 1-27 are No. 1-
The sensitivity of No. 26 and the white and red sensitivities of Sample Nos. 3-1 to 3-10 were expressed as relative values when the sensitivity of No. 3-9 was set to 100.

[Evaluation of Roller Mark] The pressure resistance during development (pressure mark by roller of automatic processor = roller mark) was evaluated as follows. That is, without exposing the sample, in an X-ray automatic developing machine having a special roller with strong irregularities having a facing roller for 90 seconds, the above developing solution was used as a developing solution at 38 ° C for 25 seconds.
Development was performed for 2 seconds. The roller marks generated at that time were classified into 5 grades according to their degree and evaluated.

5: No roller mark generation, 4: Very slight occurrence, 3: Slight occurrence (within practical tolerance), 2: Large occurrence (outside practical tolerance), 1: Very large occurrence.

 Table 1 shows the obtained results.

As is clear from Table 1, in the present invention in which pH ≧ 5.5 and EAg ≦ 130 mV, the roller mark resistance is improved. Further, considering the sensitivity, it is more preferable to add the sensitizing dye in the desalting step.

Example 2 Potassium bromide, thioether and gelatin were added to and dissolved in water 1 and kept at 65 ° C (step 1). While stirring, a silver nitrate solution and a mixed solution of potassium iodide and potassium bromide were added to this solution by a double jet method.
(Step 2 is when the amount of silver nitrate added is 50%, and step 3 is when the addition is completed.) After the addition of the mixed solution is completed, the temperature is lowered to 40 ° C., and then the compound (I) and MgSO ₄ are added. 2.4 g and 6 g were added per mol of silver halide, the pH was lowered to precipitate the contents, and the supernatant was discharged to remove soluble salts. Next, after this solution was dispersed (step 4), post-gelatin was added.

The tabular silver halide grains obtained had an average diameter of 1.18.
μ, the thickness was 0.15 μ, and the silver iodide content was 2.5 mol%. This emulsion was chemically sensitized in the same manner as in Example 1. (Before this chemical sensitization is Step 5, and after this chemical sensitization is Step 6.) (Of these Steps, Steps 1 to 3 are the particle forming step, and after the completion of Step 3, the compound (I The physical ripening step is up to the start of addition of).) Spectral sensitizing dyes ~ were added at the end of the above-mentioned steps to obtain samples shown in Table 2. (Dye addition position, dye type, amount, etc.) Next, the pH of the undeveloped film, which is a sensitometric sample
For EAg and EAg, add sodium carbonate aqueous solution to the coating solution of the emulsion layer or the protective layer for pH, and for EAg,
A desired amount of an aqueous potassium bromide solution of the emulsion layer coating solution was added to obtain the values shown in Table 2. The pH and EAg of the film are shown in Example 1
The process measurement procedure described in 1. was used.

Next, the obtained sample was exposed and treated in the same manner as in Example 1 to evaluate the sensitivity and the roller mark resistance.

Here, among the sensitivities in Table 2, Sample Nos. 4-1 to 4-18 are
The white and green sensitivities of Sample No. 4-18 are set to 100, and the white and blue sensitivities of Sample No. 5-8 are the same as those of Sample No. 5-8. 6-8 are the relative values when the white and red sensitivities of Sample No. 6-8 are set to 100, respectively. The obtained results are shown in Table-2.

As is clear from Table 2, the pH of the photographic film ≧ 5.5, EAg
It can be seen that the samples of the present invention in the range of ≦ 130 mV have improved roller mark resistance.

[Effects of the Invention] In the method for producing a high-sensitivity silver halide photographic light-sensitive material of the present invention, a spectral sensitizing dye is added to at least one of a silver halide grain forming step, a physical ripening step and a desalting step. In addition, by setting the pH and EAg of the obtained silver halide photographic light-sensitive material to pH ≧ 5.5 and EAg ≦ 130 mV, the roller mark resistance is improved as shown in Examples 1 and 2, and for example, automatic development is performed. An excellent photographic light-sensitive material which does not undergo blackening under pressure can be obtained even when it is developed using a machine.

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Claims (1)

[Claims] 1. A silver halide emulsion layer obtained by adding a spectral sensitizing dye to at least one of a silver halide grain forming step, a physical ripening step and a desalting step on a support. A silver halide photographic light-sensitive material is produced by providing one layer, and the pH of the obtained silver halide photographic light-sensitive material is ≧ 5.5 and EAg ≦ 130 mV. Production method.