JPH06266036A - Silver halide photographic element, silver halide photographic sensitive material and its processing method - Google Patents

Abstract

PURPOSE:To provide the silver halide photographic element and the silver halide photographic sensitive material high in sensitive and low fog and superior in physical property, such as pressure resistance and scratch resistance and blocking and sticking resistance and to provide the method for processing this photographic sensitive material by using a novel silver halide grains. CONSTITUTION:The silver halide photographic element or silver halide photographic material characterized by comprising at least a support and silver halide gelatin emulsion layers and an emulsion protective layer and containing flat silver halide grains having an aspect ratio of >=3 in the emulsion layer and having the emulsion protective layer coated with the latex having a glass transition point of >=50 deg.C, is processed by the method characterized by processing the silver halide photographic sensitive material in 15-60 sec.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a novel silver halide photographic element, a silver halide photographic light-sensitive material and a processing method of the photographic light-sensitive material. More specifically, it has high sensitivity, low fog and excellent film physical properties. The present invention relates to a silver halide photographic element, a silver halide photographic light-sensitive material and a processing method thereof.

[0002]

2. Description of the Related Art Tabular silver halide grains are often used in silver halide photographic light-sensitive materials containing gelatin as a binder. This is because flattening increases the projected area, increases the amount of light received per unit grain, and allows a large amount of sensitizing dyes to be adsorbed, and higher spectral sensitization is expected. However, even with this method, it cannot be said that the sensitivity is increased yet. Recently, methods of reducing tabular grains and sensitizing them with selenium have been proposed as methods for increasing sensitivity. However, this emulsion technique has not been able to achieve the expected effect on the pressure resistance of silver halide grains. On the other hand, the shortening of the access time to the image has been dramatically advanced due to the progress of electronics, and the rapid processing of silver halide photographic light-sensitive materials is required more and more.

Therefore, there is a demand for a technique for reducing the amount of gelatin used as a binder that has protected silver halide grains and shortening the photographic processing such as developing speed, fixing speed, washing speed and drying speed. . When the amount of gelatin used is reduced, the highly sensitive halogenated grains become even weaker against external pressure, and attempts have been made to improve the method for preparing the grains to overcome this, but with high sensitivity and low fog. At the same time, silver halide grains that have both high pressure resistance have not been found yet. To this end, it has often been the case to add latices that are soft and function as buffers. However, the latex has various adverse effects on the silver halide grains, which are the photoconductor, and also deteriorates the film physical properties of the silver halide photographic element to make it easily scratched and deteriorates the scratchiness between the films during storage. Therefore, its use was limited and the purpose could not be achieved sufficiently.

[0004]

SUMMARY OF THE INVENTION In contrast to the above problems, an object of the present invention is to provide a silver halide photographic element and a silver halide photographic light-sensitive element using novel silver halide grains having high sensitivity and low fog. It is to provide a material and a processing method thereof. Another object of the present invention is to improve the film physical properties of silver halide photographic elements. More specifically, it is to provide a silver halide photographic element, a silver halide photographic light-sensitive material and a processing method which have high sensitivity, excellent pressure resistance and scratch resistance, and are free from scratches.

Other objects of the invention will be apparent in the following detailed description.

[0006]

The above object of the present invention comprises at least a support, a silver halide gelatin emulsion layer and an emulsion protective layer, in which tabular grains having an aspect ratio of 3 or more and the emulsion layer. A silver halide photographic element or a silver halide photographic light-sensitive material comprising the protective layer coated with latex having a glass transition point of 50 ° C. or higher and the silver halide photographic light-sensitive material in 15 to 60 seconds. It is achieved by a method of processing a silver halide photographic light-sensitive material, which is characterized by processing. Hereinafter, the present invention will be specifically described.

The latex used in the present invention is characterized by having no or very little adverse effect in the following points even when used in a silver halide photographic element. The latex surface is photographically inert and has very little interaction with various photographic additives. As an example, dyes and pigments are less likely to be adsorbed to cause color contamination of silver halide photographic elements. Also, it is difficult to adsorb development accelerators, development inhibitors, etc. that affect the development speed,
Less likely to affect sensitivity and fog.

Also in preparing silver halide photographic elements,
Since the photographic liquid in which the latex of the present invention is dispersed has little pH dependence and is not easily influenced by ionic strength, aggregation and precipitation hardly occur. The fact that the latex of the present invention has the above-mentioned properties is considered to be greatly influenced by the monomer composition and properties of this latex.

An index called a glass transition point is often used for latex. The higher the transition point, the harder it becomes so that it cannot serve as a buffering agent. However, if it is low, the transition point is generally likely to interact with the photographic performance, resulting in adverse effects. Therefore, the selection of the composition and the amount used are not simple considering the photographic characteristics. Latex using monomers such as styrene, butadiene, and vinylidene is well known, but none of them gave satisfactory performance. In addition, it is said that introduction of a monomer having a carboxylic acid group such as acrylic acid itaconic acid and maleic acid during the latex synthesis reduces the influence on photographic properties, and such synthesis is often attempted. However, such a method also does not guarantee good performance. It is unexpected that the present invention against the latex obtained by such a combination has a surprising effect by setting the glass transition point to 50 ° C. or higher by including at least a methacrylate unit. It was

JP-A-2-135335 describes a latex comprising tabular grains and a methacrylate polymer. It is said to be highly effective for tabular grains. However, in the examples, the tabular grains have a glass transition point of 50 ° C. or lower, which is different from the idea of the present invention, and the ring opening of epoxy is not mentioned at all. The present invention proposes a novel invention in which the methacrylate unit is positively used in the latex to enhance the glass transition point and to fully exhibit the characteristics of tabular grains.

The amount of the methacrylate unit introduced into the latex is preferably 30% or more and 95% by weight or less based on the latex solid content. The method for synthesizing latex is described in, for example, Japanese Patent Publication No.
It can be synthesized by the method described in No. 35. The latex synthesis method is not limited because there are numerous synthesis methods other than this patent. It is preferable to select an alkyl methacrylate having an optionally substituted alkyl group or an optionally substituted carbocyclic methacrylate as a monomer used in the synthesis of the latex. Examples of the alkyl group of the alkyl methacrylate include a methyl group, an ethyl group, a butyl group, a hexyl group, an octyl group, a nonyl group, a dodecyl group, and a hexadecyl group, which may have a linear or branched aliphatic group having 1 to 16 carbon atoms. Examples include those in which a cyclic saturated ring such as a group and a cyclohexyl group, an aromatic group such as a phenyl group, a pyridyl group, and a furan group are directly substituted, and those in which a linking group is interposed.

The monomer can be selected from the exemplified monomers described in JP-B-60-15935. The blending of these monomers is preferably selected as appropriate by setting the glass transition point which is an index of the hardness of the latex. The glass transition point of the latex is greatly affected by the selection of the alkyl group, but the glass transition point can be controlled by selecting 20% by weight or more of the alkyl acrylate component.
The temperature is preferably 50 ° C or higher, more preferably 60 ° C or higher. The latex of the present invention contains a methacrylate unit, but it is not always necessary to copolymerize all the latex units. This is because a part of the polymerization progresses as a homopolymer and acts as a dispersion medium at the time of forming the latex to stabilize the polymerization. Therefore, it is also possible to polymerize a monomer containing methacrylate in advance and polymerize other monomers in this homopolymer.

If the latex containing the alkyl methacrylate monomer unit of the present invention has a small amount of methacrylate component, the scratch resistance is deteriorated and scratches or scratches are likely to occur, so it is necessary to appropriately select and determine the composition.

Therefore, the above-mentioned methacrylate component is 30 mol% or more, preferably 35 mol% or more, more preferably 40 mol% or more and 95 mol% or less of the latex.

Glycidyl methacrylate having a glycidyl group in the methacrylate latex is important in imparting stability to the latex. The glycidyl group is often used to enhance the physical properties of the film because it has a site for hardening, but it is not sufficiently known that it contributes to the stabilization of the latex apart from its purpose. Further, the glycidyl group may be used as it is, or may be used after being ring-opened.

The ring-opening rate of the glycidyl group in the present invention means
Journal of Polymer Science, Vol. 34, No. 8, pp. 571-576 (1977, August)
Monthly), it is the value measured by the hydrochloric acid-pyridine method, and can be obtained by the following calculation formula.

Glycidyl group ring-opening rate = [(AB) / A]
× 100 (mol%) In the above formula, A is the number of moles of the glycidyl group-containing monomer used in the polymerization, and B is the number of moles of the glycidyl group-containing monomer unit in the synthesized polymer.

The glycidyl methacrylate or the glycidyl acrylate of the present invention is characterized in that the ring-opening rate of the epoxy amount is 35 mol% or more. As a method for setting the ring-opening rate of the glycidyl group to a desired value, the polymerization temperature, A method of appropriately selecting the polymerization reaction time or lowering or increasing the pH to forcibly hydrolyze with an acid or alkali to open the ring,
There is a method of adding a compound that reacts with an epoxy group such as amines and aldehydes to open a ring. The choice of these compounds is arbitrary and does not limit the invention.

The stability of the latex can be imparted by using a surfactant for dispersing the monomer during the latex synthesis. The type of activator can be arbitrarily selected from anionic, nonionic, cationic and amphoteric. Nonionic or anionic activators, alone or in combination, give good results. Further, the pH during the polymerization can be selected from neutral, alkali and acid. In the case of an acid monomer, when it is polymerized under acidic condition, it is easily incorporated into the polymer and gives good results. However, in the case of adding to a photographic emulsion or a photographic coating solution in the vicinity of neutrality, when polymerized with an acid (pH 1 to 6) or an alkali (pH 8 to 14), it is preferable to add it after returning to neutral. Further, for the polymerization, it is preferable to use a dispersion obtained by emulsion polymerization in an aqueous solution, but the solvent may be distilled and used after the polymerization in alcohol or an organic solvent.

As the dispersion medium for the latex, natural amphoteric gelatin may be used. When gelatin is used, it can be incorporated into a latex to obtain a latex having good crosslinkability. There are two methods of using gelatin: one is to add gelatin instead of the active agent, and the other is to use it in combination with the active agent. The gelatin may be either one obtained by alkali decomposition or one treated with an acid. Further, the molecular weight can be controlled depending on the degree of decomposition so that the dispersibility of the monomer can be improved and it can be used.

A glycidyl methacrylate latex having an epoxy ring opening ratio of 15 mol% or more is optionally copolymerized with glycidyl methacrylate in which the epoxy of the glycidyl group has not been ring-opened and another unsaturated vinyl monomer,
After that, the ring can be opened. However, the epoxy may be opened before the polymerization and then polymerized. The unsaturated monomers to be copolymerized are described in JP-A-51-114120
It can be selected with reference to page 8. Particularly, the vinyl monomer as a partner for copolymerization is preferably a methacrylate or acrylate type. However, this is not a limitation and may be a non-acrylate type such as styrene or acrylonitrile.

Further, in order to enhance the stability of the latex, a monomer having a carboxylic acid group such as acrylic acid, itaconic acid, maleic acid or the like is introduced, or 2-acrylamide is used.
-2-methylpropanesulfonic acid, styrenesulfonic acid,
Introducing a sulphonic group such as isoprene sulphonic acid is optional. As these acid monomers, JP-A-2-1353
You can refer to page 35 of No. 35.

The molecular weight of the copolymerization product can be set from 1,000 to 1,000,000 depending on the degree of polymerization. The preferred molecular weight is 1500 to 600,000 but is not limited to this molecular weight.

The particle size of the latex can be arbitrarily selected from 0.001 to 10 μm. If the particle size is large, the haze of the film deteriorates. On the other hand, if it is small, a large amount of emulsifier is required, which deteriorates photographic performance and film physical properties. The preferred particle size is 0.01 to 1 μm, and the particle size distribution is
The narrower the better. The index showing the distribution of grains can be expressed by a statistical coefficient of variation, as in the case of silver halide grains. Usually used within 40%. Preferably 30%
Within 20%, within 10%, within 5%. The method of narrowing the distribution may be to eliminate the heterogeneity of the polymerization reaction. For example, it is possible to satisfactorily stir the reaction vessel (stirring under Reynolds' complete stirring and mixing conditions), control addition of monomers (flow rate control, pH control), and the like.

Specific examples of the latex will be shown below. Glycidyl methacrylate is GMA, glycidyl acrylate is GA, styrene is St, α-methylstyrene is α-St, methyl acrylate is MA, and methyl methacrylate is MMA.
EA for ethyl acrylate, BA for butyl acrylate,
Hexyl acrylate is HA, isononyl acrylate is
INA, cyclohexyl methacrylate CA, hydroxyethyl acrylate HEA, hydroxyethyl methacrylate HEMA, acrylic acid AA, itaconic acid IA, maleic acid MA, acrylamide AAM, styrene sulfonic acid S
tS, acrylamido-2-methylpropanesulfonic acid amide are abbreviated as AMPS, and 2-propenyl-4-nonylphenoxyethylene oxide (n = 10) sulfonic acid ester is abbreviated as PFS.
The attached small letters represent the composition weight composition ratio.

Specific examples of latex Monomer species Molecular weight (10,000) Average particle size Tg (° C) 1) MMA ₆₀ EA ₃₀ GMA ₁₀ 2 0.20 56 2) MMA ₅₈ EA ₄₀ GMA ₂ 1 0.20 50 3) St ₆₀ MA ₁₅ EA ₂₀ GMA ₅ 2 0.20 53 4) [Activator change in (2)] 2 0.20 52 5) St ₇₀ NA ₂₀ GMA ₁₀ 2 0.20 60 6) St ₆₅ EA ₃₀ GMA ₁₀ 2 0.20 58 7) St ₆₀ MMA ₁₀ NA ₂₀ GMA ₁₀ 3 0.10 70 8) AN ₂₅ MMA ₅₀ EA ₂₀ GMA ₅ 3 0.10 75 9) α-mSt ₆₂ MMA ₁₀ EA ₂₀ GMA ₈ 2 0.20 74 10) St ₆₀ EA ₂₀ BA ₁₂ GMA ₂ 2 0.20 60 11) St ₅₅ MMA ₁₅ EA ₂₀ GMA ₁₀ 2 0.20 63 12) MMA ₆₀ EA ₃₀ GMA ₁₀ 5 0.10 63 13) MMA ₆₆ EA ₂₂ GA ₁₂ 0.2 0.10 56 14) St ₄₅ MMA ₂₀ EA ₂₅ BA ₅ CA ₅ 0.8 0.20 52 15) CA ₇₅ INA ₁₅ GA ₁₀ 3 0.10 54 16) MMA ₇₅ EA ₂₀ GA ₅ 4 0.10 66 17) MMA ₇₀ EA ₂₀ GA ₁₀ 10 0.10 64 18) St ₆₀ EA ₃₀ GA ₁₀ 50 0.10 63 19) MMA ₇₀ EA ₂₆ GA ₄ 20 0.10 67 As the silver halide used in the silver halide photographic element of the present invention, high-sensitivity tabular grains are used, and the silver halide composition is AgBr, AgCl, AgClBr, AgClBrI, AgBrI, AgCl.
BrB can be used as desired, but AgB is rich in AgBr composition
rI (I = 0 to 30 mol%) is preferred.

Tabular grains are described in US Pat. No. 4,439,520,
No. 4,425,425, No. 4,414,304, etc.,
Target tabular grains can be easily obtained. The tabular grains can be formed by epitaxially growing silver halide having a different composition on a specific surface site or by shelling. For example, a high iodine layer may be provided inside and shelled with silver bromide having a low iodine content. The average iodine content of the whole particles is preferably 10 mol% or less, more preferably 8 mol% or less, further preferably 5 mol% or less. This is because if iodine is high, rapid processability is poor.

The tabular grains of the present invention are preferably tabular grains having an aspect ratio of 3 or more in 50% or more of the total projected area of all grains in the emulsion layer in which the tabular grains are used. Especially tabular grains account for 60% to 70% and 80%
The better the result, the better the result. Here, the aspect ratio represents the ratio of the diameter of a circle having the same area as the projected area of tabular grains and the distance between two parallel planes. In the present invention, the aspect ratio is preferably 3 or more and less than 20 and 3 or more and less than 16. Although the aspect ratio is an indication of tabularity, this A _t value in consideration of the factors of thickness is used.

In this case, A _t = ECD in the present invention.
/ T ² is preferably 16 or more.

Here, ECD is the average projected diameter of tabular grains.
(μm), and t is the thickness of tabular grains. The average projected diameter here means the number average of diameters of circles having an area equal to the projected area of tabular grains.

The tabular grains of the present invention have a thickness of 0.5 μm or less, preferably 0.3 μm or less. Also, the distribution of tabular grains is a coefficient of variation that is often used (the standard deviation S when the projected area is approximated by a circle is divided by the diameter D to obtain a value S / D of 100).
It is preferably a monodisperse emulsion having a fold ratio of 30% or less, particularly 20% or less, and further 10% or less. Further, two or more kinds of tabular grains and non-tabular grains of normal crystal may be mixed.

From the viewpoint of sensitization, it is also preferable that the relation B _t = t / l between the twin plane distance 1 at which the thickness of the tabular grains of the present invention is located at the center and the thickness t is 5 or more. Since generally the aspect ratio of the tabular grains increases B _t increases, this value is not intended to be strictly defined.

Ammonia, thioether compounds, thione compounds and the like can be used as a silver halide solvent in order to control grain growth during formation of tabular grains.

Further, during physical aging and chemical aging, zinc,
A metal salt of lead, thallium, iridium, rhodium, or the like can coexist. To control the photonucleus,
The tabular grains may have a transition line on the surface or inside thereof.

The above silver halide can be sensitized with a selenium compound to a noble metal salt such as a sulfur compound or a gold salt. Further, reduction sensitization can be performed, and these methods can be combined for sensitization.

Examples of useful selenium sensitizers usable in the present invention include selenoureas, selenoketones, selenoamides, selenocarboxylic acids and selenoesters, selenophosphates and selenides. In particular,
Preferred selenium sensitizers are selenoureas, selenoamides, and selenium ketones. Specific examples of compounds are (1) N, N-dimethylselenourea (2) N, N, N′-triethylselenourea (3) N, N, N′-trimethyl-N′-heptafluoroselenourea (4) N, N, N'-trimethyl-N'-heptafluoropropylcarbonylselenourea (5) N, N, N'-trimethyl-N'-4-nitrophenylcarbonylselenourea (6) Selenoacetone (7 ) Selenoacetophenone (8) 2-Selenopropionic acid (9) Methyl-3-selenobutylate (10) Tri-p-triselenophosphate (11) Colloidal selenium metal (12) Selenoacetamide (13) N, N- Examples thereof include dimethylselenobenzamide (14) diethylselenide (15) diethyldiselenide, but are not limited to these compounds.

The amount of the selenium sensitizer used varies depending on the selenium compound used, the silver halide grains, the chemical ripening conditions, etc., but it is about 10 ^-8 to 10 ^-4 mol per mol of silver halide. Further, the addition method may be a method of adding it by dissolving it in water or an organic solvent such as methanol or ethanol alone or in a mixed solvent depending on the properties of the selenium compound used, or by adding it in advance with a gelatin solution. Alternatively, the method disclosed in JP-A-4-140739, that is, the method of adding in the form of an emulsion dispersion of a mixed solution with a polymer soluble in an organic solvent may be used.

The temperature of chemical ripening using the selenium sensitizer in the present invention is preferably in the range of 40 to 90 ° C. More preferably, it is 45 ° C or higher and 80 ° C or lower. Also, the pH is 4-9, p
Ag is preferably in the range of 6 to 9.5.

The silver halide photographic element of the present invention can be obtained by coating an emulsion prepared by dispersing the above silver halide in a hydrophilic colloid medium, for example, gelatin into a polyethylene terephthalate or triacetate cellulose support.

For the cross-linking of gelatin, an aldehyde such as glyoxal or mucochloric acid, cyanuric acid, aziridine or vinyl sulfonic acid can be used.

Other compounds such as an antihalation dye, a safelight improving dye, a sensitizing dye, a fog inhibitor, a matting agent, an antistatic agent and a development modifier which can be contained in the silver halide photographic element of the present invention are used and used. Can be selected as appropriate.

[0042]

The effects of the present invention will be specifically illustrated by the following examples.

Example 1 A latex according to the invention and according to the invention was prepared by the following method.

(Comparison of Comparative Latex a) JP-B-60-15
EA ₉₆ AA ₄ (Tg = -20 ° C) was synthesized according to Example 1 of No. 935.

The average particle size is 0.20 μ.

(Synthesis of Comparative Latex b) According to Latex a, a similar St ₁₀ AN ₁₀ EA ₈₀ (Tg = 0 ° C.) composition was synthesized.

AN represents acrylonitrile.

(Synthesis of Comparative Latex c) St ₃₅ EA ₆₅ (Tg = 19 ° C.) 0 latex was synthesized according to Comparative Latex b.

(Synthesis of Latex 1 to 21 of the Invention) The latex of the invention was synthesized according to Latex a.

(Preparation of Photographic Photosensitive Material) An orthophotosensitive material for X-ray was prepared using the tabular grains and latex of the present invention and evaluated for photographic performance and physical properties. The creation of photosensitive material
According to the example of JP-A-63-305343. The average iodine content of the particles was 1 mol%. This emulsion was subjected to gold-sulfur sensitization and spectrally sensitized with 5,5'-dichloro-9-ethyl-3,3'-bis (3-sulfopropyl) -oxacarbocyanine sodium salt as an orthocyanin dye. A sample was prepared by coating the emulsion and a protective layer on both surfaces of a polyethylene terephthalate support having a thickness of 175 μ and colored in blue so as to have the following constitution.

First layer (transverse light blocking layer) Dye Oxonol dye (benzyl 1,1′-disulfonate-3,3′-butylcarbamidooxonol cyanine) 0.18 g / m ² Mordant (divinylbenzene and diethylamino methylstyrene 1 : 9 copolymer gelatin) 0.10g / m ² gelatin 0.75g / m ² 2nd layer (emulsion layer) Hypo 8.2mg / mol Ag, KSCN1
63 mg, chloroauric acid 5.4 mg, selenium compound (select from specific examples)
A tabular grain sensitized with 3.8 mg of gold sulfur selenium was added with a silver amount of 3.0
It was applied so as to be g / m ² . The following additives were added to the emulsion.

Tabular grain emulsion See Table 1 Sensitizing dye (5,5′dichloro-3,3′di (3-sulfopropyl) -9-ethyl-oxacarbocyanine sodium salt) 63 mg / m ² Stabilizer (4- Hydroxy-6-methyl-1,3,3a, 7-tetrazaindene) 58mg / m ² Gelatin 2.1g / m ² Latex (EA ₉₇ AA ₃ ) 0.5g / m ² 3rd layer (protective layer) Latex (Tg ≥50 ° C, see Table 1) 1.0g / m ² Gelatin 1.2g / m ² PMMA (3.5μm) (matting agent) 0.025g / m ² Using the samples prepared as shown in Table 1, the following method was used for evaluation. .

Sensitometry After being exposed to green light for 0.1 seconds, it was developed, fixed, washed with water and dried with a developer having the following composition. The development process is
With Konica Corporation's automatic processor SRX-501, standard processing is 35
The total treatment time was 45 seconds at ℃. Sensitivity was expressed as the reciprocal of the exposure amount that gives a density of fog +1.0.

Evaluation of pressure resistance After a test piece having a width of 3.5 cm and a length of 12.5 cm was passed through a pressure resistance tester and exposed and developed, a very good level of blackening was set to 5 depending on a blackened area, and a worst level was 1 The following five-level ranking relative evaluation was performed. Practically, 3 is the lower limit. Evaluation of scratch resistance The surface of the film was rubbed with a scratch tester, and the amount of scratches was visually evaluated on a five-rank scale. The number of scratches was 5 and the number of scratches was 1. Practically, 3 is the lower limit. Kutski evaluation test Samples were conditioned for 24 hours in a room at 23 ° C and 50% relative humidity, 20 films were stacked, a load of 200 g / cm ² was applied for 3 days, and the Kutski area of the film surface was observed. Then, the relative evaluation was conducted by visual inspection on a 5-grade scale. The case where the number of marks attached to the film was the smallest was 5, and the case where the number was the smallest was 1. Practically, 3 is the lower limit.

(Developer composition) 1-phenyl-3-pyrazolidone 1.5 g hydroquinone 28 g 5-nitroindazole 0.250 g 5-methylbenzotriazole 0.060 g potassium bromide 4.50 g sodium sulfite 50 g potassium hydroxide 30 g boric acid 10 g The experimental recipe for 1 liter (pH adjusted to 10.20) is summarized in Table 1 and the performance results are summarized in Table 2.

[0056]

[Table 1]

[0057]

[Table 2]

From the results shown in Table 2, it can be seen that by combining the emulsion of the present invention and the latex, high-sensitivity photographic characteristics can be obtained, and at the same time, a silver halide photographic element and a silver halide photographic light-sensitive material having excellent film physical properties can be obtained. Recognize.

It can be seen that the sensitivity is particularly high, and the pressure resistance, scratch resistance, and scratch resistance are excellent.

Example 2 Using the samples of the present invention sample Nos. 1, 3, 9, 11, and 14 in Example 1, a rapid treatment experiment was conducted. The quickness is evaluated from 15 seconds to 100 in 4 steps of development, fixing, washing and drying.
After processing for up to 2 seconds, the sensitivity and scratch resistance performance were evaluated. Note that the scratch resistance in this experiment was processed at 35 ° C using an automatic processor for testing in which a mechanism with sharp protrusions and a film that is easily scratched is built in the automatic processor and the transport speed can be freely set. . Further, if the developing time is shortened, the transport speed will be increased in proportion to the time, so that scratches are likely to occur.

Table 3 shows the results of treating each of the above samples for the treatment times shown in Table 3.

[0062]

[Table 3]

From the results shown in Table 3, it can be seen that by combining the emulsion of the present invention with the latex, a highly sensitive photographic property can be obtained and at the same time a silver halide photographic light-sensitive material excellent in film physical properties can be obtained.

In particular, it can be seen that high sensitivity is obtained and scratches are less likely to occur even if the development processing time is shortened.

[0065]

INDUSTRIAL APPLICABILITY According to the present invention, a silver halide photographic element using a novel silver halide grain having high sensitivity and low fog, a silver halide photographic light-sensitive material, and a processing method thereof are used to obtain high sensitivity and pressure resistance. It was possible to provide a silver halide photographic element having excellent scratch resistance and no scratchiness, a silver halide photographic light-sensitive material, and a processing method thereof.

Claims (3)

[Claims] 1. A silver halide photographic element comprising at least a support, a silver halide gelatin emulsion layer and an emulsion protective layer, wherein tabular grains having an aspect ratio of 3 or more and said emulsion layer protective layer are contained in said emulsion layer. A silver halide photographic element characterized by being coated with a latex having a glass transition point of 50 ° C. or higher. 2. A silver halide photographic light-sensitive material comprising at least a support, a silver halide gelatin emulsion layer and an emulsion protective layer, wherein tabular grains having an aspect ratio of 3 or more and the emulsion layer protective layer are contained in the emulsion layer. A silver halide photographic light-sensitive material, characterized in that a latex having a glass transition point of 50 ° C. or higher is coated on. 3. A silver halide photographic light-sensitive material comprising at least a support, a silver halide gelatin emulsion layer and an emulsion protective layer, wherein tabular grains having an aspect ratio of 3 or more and said emulsion layer protective layer are contained in said emulsion layer. A method for treating a silver halide photographic light-sensitive material, characterized in that a silver halide photographic light-sensitive material characterized by being coated with latex having a glass transition point of 50 ° C. or higher is processed for 15 to 60 seconds. .