JPS5971050A - Silver halide photosensitive material - Google Patents

Abstract

PURPOSE:To improve a white ground and to prevent a static mark by providing a layer contg. a UV absorbent, a layer contg. a fluorescent whitening agent and a layer capturing said agent on a substrate. CONSTITUTION:A layer contg. a fluorescent whitening agent is provided in the position nearer than the layer contg. a UV absorbent provided in the position furthest from a substrate among the layers contg. the UV absorbent and a compd. capturing the whitening agent is incorporated in the layer contg. the UV absorbent provided in the furthest position and/or the layer provided in the position further from said layer. The layer contg. the whitening agent and the layer capturing the same are separately formed but the white ground is more improved if both layers are provided in the nearest possible position. Polyvinyl pyrolidone and its copolymer are preferred as the compd. capturing the whitening agent.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a silver halide photographic light-sensitive material, particularly a silver halide photographic light-sensitive material suitable for direct viewing. In photographic materials for direct viewing, such as silver halide photographic light-sensitive materials in which oxidation is prevented, the whiteness of the background has an important effect on the image. Improving the whiteness of the background increases contrast, improves color purity (coloring), and improves aesthetics. Therefore, fluorescent whitening agents are known as one of the effective means for improving the whiteness of zero silver halide photographic materials for which various methods have been devised for improving the whiteness.

One method of using this fluorescent whitening agent is to include the fluorescent brightening agent in a color development processing solution. It is described in each publication of No. 25336.

However, these methods have the disadvantages that the fluorescent whitening effect obtained is insufficient and the stability of the developer is poor.
This method is difficult to respond to diversification.

Another method of using a fluorescent brightener is to incorporate the fluorescent brightener into a light-sensitive material.
No. 21189, No. 48-27692, No. 49-106
No. 96, No. 5]-28225 and No. 52-3225
It is described in each publication No. 4. According to these methods, more preferable results can be obtained than the above-mentioned method in which a fluorescent whitening agent is included in the developer because the fluorescence intensity is increased and the whiteness of the end-exposed area is improved. However, in the conventional method of incorporating a fluorescent brightener into a light-sensitive material,
A fluorescent brightener is contained singly in a layer of the support 8, an emulsion layer or a non-emulsion layer, or a fluorescent brightener and a fluorescent brightener. It contained a compound that captured the whitening effect and enhanced the whitening effect.
According to such conventional methods, although the above-mentioned effect of improving the whiteness of the end-exposed area is sufficiently obtained, when each constituent layer of the light-sensitive material is coated on the support at high speed, the force 2-printer increases during printing. There is a serious drawback in that static failures such as static marks occur during manufacturing or processing of the photosensitive material, such as when transporting the photosensitive material, or when peeling off a tape attached to the surface of the photosensitive material.

Moreover, in conventional methods, static marks tend to occur as the intensity of the fluorescent light is increased. In addition, in photosensitive materials using a hydrophobic support made of a paper support coated with polyolefin, there is a tendency for static marks to occur particularly frequently.
There was an urgent need to find a solution to this problem.

The present invention has been made to solve the above-mentioned drawbacks of conventional silver halide photographic X-sensitive materials, and is the first of its kind.
A second object of the present invention is to provide a silver halide photographic material in which whiteness is improved and static marks are efficiently prevented without impairing sensitivity.
An object of the present invention is to provide a silver halide photographic material with an improved white background free from color stains. The third object of the present invention is to
For color photography, the object is to provide a silver halide photographic material with good color reproducibility.

The silver halide photographic material of the present invention, which has been found to achieve the above object, comprises at least one silver halide emulsion layer, a layer containing an ultraviolet absorber, and a fluorescent layer on a hydrophobic support. A layer containing a brightener and a layer containing a compound capable of capturing the fluorescent brightener are provided, the layer containing the fluorescent brightener and the layer containing the compound capable of capturing the fluorescent brightener. The ultraviolet absorbing layer is a layer different from that of the support, and the fluorescent brightener-containing layer is provided at the farthest position from the support among the ultraviolet absorber-containing layers. A compound that is installed at a position closer to the agent-containing layer and that can capture the fluorescent brightener, or a compound that is installed at a position closer to the ultraviolet absorber-containing layer and/or the support that is installed at the furthest position. It is characterized in that it is contained in a layer located further away than the ultraviolet absorbent containing layer located at the furthest position.

Examples of the fluorescent brightener used in the present invention include diaminostilbene thread, benzidine-based, imiguzole-based, triazole-based, and imidasilone-based fluorescent brighteners.

A preferred fluorescent whitening agent is a water-soluble fluorescent whitening agent having in its molecule at least one organic acid group exhibiting a pKa of 6.0 or less or an organic base exhibiting a pKb of 7.5 or less.

More preferably, it is a water-soluble fluorescent whitening agent having a small amount (both in one molecule) of an organic acid group exhibiting a pKa of 5.0 or less, or an organic base exhibiting a pKb of 40 or more and 7.5 or less, More preferably, there is a small number of organic acid groups having a pKa of 5.0 or less (one at a time, and one organic acid group having a pKa of 4.0 or more and 7.5 or less).
A water-soluble fluorescent brightener having at least one organic base having Kb in the same molecule. pKb of organic base
Most preferably, it is 4.0 or more and 7.0 or less.

In the present invention, pKa is a so-called acid dissociation constant, which is an ionization equilibrium constant of an acid, and is one of the measures showing the strength of an acid. For example, the chemistry side * (Basics U) (edited by the Chemical Society of Japan) P4
Defined in O10.

The dissociation of acid HA is shown as l-11”H+-1-A-,
The solution at this time is %1 constant Kal, Ka = [H→][A-]/[) included], and pKa
is denoted by pK, a = -J-ogKa. Similarly, pKb is also a so-called base dissociation constant, and when the dissociation of base B is represented by B+H20;="BH++OH, the dissociation constant K b is Kb = [BH+] [0I-(] / [B ], and pKb is denoted by pKb = - fogKb.

The fluorescent brightener used in the present invention is preferably one represented by the following general formula.

[Diaminostilbene-based fluorescent whitening agent] General formula I In the formula, R,, R12, R3 and R4 are each a hydrogen atom, a halogen atom, a sulfonic acid or a salt thereof, a carboxylic acid or a salt thereof, an alkylamino group, an aryl Amino group, hydroxyl group, amino group, alkoxyl group,
Represents an aryloxy group or a morpholino group. X,
represents a sulfonic acid or a carboxylic acid, or a - salt thereof.

[Benzidine Fluorescent Brightener] General Formula ■ In the formula, R,, II (and R7 each represent a hydrogen atom, hydroxyl, an alkyl group, or an alkoxyl group. These salts are represented. Particularly preferred R7 is hydroxyl.

[Imidazole Fluorescent Brightener] General 2. In the formula, R6 and R7 each represent a hydrogen atom, an alkyl group, an alkoxyl group, or a sulfonic acid or a salt thereof. R9 and R4° each represent a hydrogen atom, an alkyl group, or a hydroxyalkyl group.

X3 represents a sulfonic acid or a carboxylic acid, or a salt thereof.

[Triazole fluorescent brightener] General formula■ X,

In the formula, X4 and X each represent a hydrogen atom, a carboxylic acid or a sulfonic acid, or a salt thereof. X6 represents a sulfonic acid or a carboxylic acid, or a salt thereof.

Next, specific examples of fluorescent brighteners used in the present invention that are not represented by the above general formulas 1 to 2 are shown below.

[Diaminostilbene-based fluorescent whitening agent] B-1 B-2 B-3 [Benzidine-based fluorescent whitening agent] B-5 [Imidazole-based fluorescent whitening agent] B-6 Triazole-based fluorescent whitening agent agent] FT3-7 SO3Na SO3Na
[Other fluorescent brighteners] B-8 SO3NaSO3Na The layer containing the fluorescent brightener used in the present invention is a layer containing a compound capable of capturing the fluorescent brightener, which will be described in detail below. are different layers, and any layer closer to the hydrophobic support than the ultraviolet absorber-containing layer provided at the furthest position from the support among the ultraviolet absorber-containing layers (It may form the same layer as the silver halide emulsion layer.However, as mentioned above) When added to the silver halide emulsion layer, the fluorescent brightener may consist of , some have an adverse effect on photographic performance such as storage stability, sensitivity, gradation, and fog of raw samples. Therefore, the fluorescent brightener-containing layer is preferably a non-emulsion layer closer to the support than the ultraviolet absorber-containing layer furthest from the support.

For example, a blue-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer, and a red-sensitive silver halide emulsion layer are coated in this order from the hydrophobic support side. When a layer containing an ultraviolet absorber is provided between the protective layer and the protective layer, the fluorescent brightener is added to the layer between the blue-sensitive emulsion layer and the green-sensitive silver halide emulsion layer, and/or the layer containing the ultraviolet absorber. Alternatively, the fluorescent brightener is preferably contained in a layer between the green-sensitive silver halide emulsion layer and the red-sensitive silver halide emulsion layer. (The whiteness is improved more when it is contained in a layer closer to the support. Therefore, a particularly preferable fluorescent brightener-containing layer is a layer containing an ultraviolet absorber that is farthest from the support. Among the non-emulsion layers close to the support, this is the layer that captures the fluorescent brightener and is closest to the layer containing the wax compound.For example, the green-sensitive silver halide emulsion layer and the red-sensitive silver halide emulsion layer. The fluorescent brightener layer between the layer and the layer containing a compound capable of trapping the fluorescent brightener or It may be contained in the ultraviolet absorber-containing layer furthest from the support and/or in a layer provided at a position farther from the support than this layer.

When the layer containing the fluorescent whitening agent is coated, the coating amount of the fluorescent whitening agent is 1 to 1, usually 0.81 to 0.5 mg/dm2.
It is.

Many conventionally known hydrophilic binders can be used in the layer containing the fluorescent brightener. Such a hydrophilic binder includes a hydrophilic binder having an organic acid group having a pKa of 6.0 or less or an organic base having a pKb of 7.5 or less, and furthermore, an organic acid group having a pKa of 6.0 or less and Op.
A hydrophilic binder having an organic base with a Kb' of 7.5 or less is preferred. In particular, the isoelectric point is 4.5 to 8.
Preference is given to hydrophilic polymers ranging up to 0, such as gelatin.

As the compound that captures the fluorescent whitening agent and accelerates the whitening effect (hereinafter referred to as a scavenger), conventionally known compounds can be used. Particularly useful ones are: , a hydrophilic polymer, such as polyvinylpyrrolidone,
Polymers containing vinylpyrrolidone as a repeating unit (
Examples of monomers that form repeating units with vinylpyrrolidone include acrylic acid, methacrylic acid, amides of acrylic acid and methacrylic acid (e.g., acrylamide, methacrylamide, N,N-dimethylacrylamide, N,N-dimethylacrylamide,
-diethylacrylamide, N-methylolacrylamide, N-hydroxyethylacrylamide, N-te
rt-butylacrylamide, N-cyclohexacrylamide, diacetone acrylamide, N-(1,1-dimethyl-3-hydroxybutyl)acrylamide, N-(β-molporino)ethyl acrylamide, N-benzylacrylamide, N- −
Acroylmorpholine, N-methacryloylmorpholine, N-mey-ru N-anarite 6. Ji7, N-
Ametoiyabi 69. ), N-acryloylpyrrolidine, N-acryloylhexamethyleneimine, etc.), alkyl ester acids of acrylic and methacrylic acids (such as methyl methacrylate, ethyl acrylate, hydroxyethyl acrylate, propyl acrylate, cyclohexyl acrylate, 2-ethylhexyl) acrylate, decyl acrylate, β-cyanoethyl acrylate, β-chloroethyl acrylate, 2-ethoxyethyl acrylate, sulfopropyl methacrylate, etc.), vinyl esters (such as vinyl acetate, vinyl propionate, vinyl butyrate, vinyl lactate, etc.), Vinyl ethers (e.g. methyl vinyl ether, butyl vinyl ether, oleyl vinyl ether), vinyl ketones (e.g. methyl vinyl ketone, ethyl vinyl ketone, etc.), styrenes (e.g. styrene, methylstyrene, dimethylstyrene, 2.4.6-hlJ methylstyrene) , ethylstyrene, laurylstyrene, chlorostyrene, dichlorostyrene, methoxystyrene, cyanostyrene, dimethylaminostyrene, chloromethylstyrene, vinylbenzoic acid, styrenesulfonic acid, α-methylstyrene, etc.), vinyl heterocyclic compounds (e.g. vinyl pyridine, vinylpyrrolidone, vinylisoxazoline, vinylimidazole, etc.), acrylonitrile, vinyl chloride, vinylitine chloride, ethylene, propylene, butadiene, isoprene, chloroprene, maleic anhydride, itaconic anhydride, citraconic anhydride, vinylsulfonic acid, etc. Can be mentioned. ), and other special public authorities in 1972-
Poly-N-vinyl- described in Publication No. 31842
5-Methyl-2-oxazolidinone, general formula CH2""
CI (NR+ Polymer of N-vinylamide compound represented by COR2, %1 Hydrophilic boria-1 containing a cationic nitrogen-containing active group described in Japanese Patent Publication No. 48-42723) N
-Polymer of morpholinoalkylalkenoylamide, copolymer of vinyl alcohol and vinylpyrrolidone described in Japanese Patent Publication No. 47-20738, Japanese Patent Publication No. 47-2073-
General formula (% formula %) described in Publication No. 49028 (in the formula, R7 is -H or -CH, R2 is -H, -Cfl
s, CtHs, C3H7, C4H9, Rs
is -H, C) Is, CtHs, C3H7, "4H9
'5'' (indicates h0 to Ao).

However, particularly preferred scavengers are polyvinylpyrrolidone and copolymers thereof.

The molecular weight of the hydrophilic polymer used in the present invention is preferably 1,000 or more, more preferably 10,000 or more in terms of weight average molecular weight. Even more preferably 50,00
0 to 1,000,000. This is a layer provided at a position farther from the support than the furthest ultraviolet absorber-containing layer and/or the ultraviolet absorber-containing layer furthest from the support. The higher the content of the scavenger, the more the fluorescent whitening agent is captured and the whiteness is improved. However, when the scavenger is contained in the layer furthest from the support (protective layer), if the scavenger is contained in an amount of 2% or more relative to the hydrophilic binder in the protective layer, the physical properties of the film deteriorate, and reticle lation may occur. This results in serious drawbacks. The preferred scavenger-containing layer is therefore the layer between the protective layer and the emulsion layer furthest from the support. The scavenger is usually 0.05 to 3.0 mg/dm2
The layer containing the ultraviolet absorber used in the present invention, which is used in a coating amount of Among them, the ultraviolet absorber-containing layer provided at the farthest position from the hydrophobic support is the above-mentioned layer together with the fluorescent brightener-containing layer and the compound-containing layer that can capture the fluorescent brightener. It would be better if it was placed outside. Suitable ultraviolet absorbers for use in the present invention include benzotriazole compounds represented by the following general formula (2).

H In the above general formula (■), R,, R, and R3 are each a hydrogen atom, a halogen float, an alkyl group, an aryl group, an alkoxy group, an aryloxy group, an alkenyl group,
Typical examples of ultraviolet absorbers represented by the general formula (2) are shown below.

6 blocks V-3 V-7 01HII(t) V-9 I-1 V-12 0Ishi V-14 □ □ These benzotriazole compounds are
No. 10466, No. 42-26187, No. 48-549
No. 6, U.S. Pat. No. 48-41572, and U.S. Pat. Nos. 3,754,919 and 4゜220,7]. . These ultraviolet absorbers are 0.00 parts by weight of the hydrophilic binder contained in the layer.
It is contained in an amount of about 1 to 2 parts by weight.

Any type of silver halide photographic material can be used as long as it has a hydrophobic support. In particular, silver halide photographic light-sensitive materials that can be directly viewed are preferably used.Such light-sensitive materials include those that are viewed by reflected light, such as color or black and white photographic paper, and those that can be viewed on screens such as color slides. In particular, the effects of the present invention are best exhibited on color or 6-black photographic paper, including those that are viewed by projection. Among the silver halide photographic materials according to the present invention, the so-called color photographic materials have three types of light-sensitive silver halide emulsion layers with different spectral sensitivities on a hydrophobic support, and each emulsion layer has a Diffusive yellow, maze/
Contains one each of three types of couplers: red and cyan. In such a case, the combination of a light-sensitive silver halide emulsion layer and a coupler is usually a cyan coupler in the red-sensitive silver halide emulsion layer, a magenta coupler in the green-sensitive silver halide emulsion layer, and a magenta coupler in the green-sensitive silver halide emulsion layer. , a yellow coupler is combined with a blue-sensitive silver halide emulsion layer, respectively. There is no particular restriction on the order of the a-layers of each emulsion layer. For example, in color photographic paper, usually
The yellow coupler-containing layer, the magenta coupler-containing layer, and the cyan coupler-containing layer are coated in this order, starting from the hydrophobic support side, or in the exact opposite order.

As the yellow, magenta, and cyan couplers used in the present invention, any conventionally known couplers may be used. Preferred yellow couplers include α-pivaloylacetanilide couplers. Preferred magenta couplers include 1-phenyl-3-anizono-5-pyrazolone couplers and piazolotriazole couplers. Preferred cyan couplers include phenolic couplers. Each of these couplers is contained in the silver halogenide emulsion layer in an amount of about 0.05 to 1 mol per mol of silver halogenide.

In addition to the above-mentioned silver halide emulsion layer, the silver halide photographic material of the present invention includes a protective layer, an intermediate layer, a filter layer, a scavenger layer, etc., formed on the hydrophobic support in an appropriate order and number of layers. The amount of binder applied in each non-photosensitive layer is usually about 1 to 30 mg/dm<2>.

Examples of the hydrophobic support used in the present invention include a paper support coated with a polyolefin, a polyolefin such as polypropylene, a cellulose such as cellulose triacetate, a plastic support such as a polyester such as polyethylene terephthalate, or glass.

On this premise, methods for dispersing the diffusion-resistant coupler in the silver halide color photographic light-sensitive material according to the present invention include the so-called aqueous alkali dispersion method, solid dispersion method, latex dispersion method, and oil-in-water emulsion dispersion method. Various methods can be used, and these methods can be selected as appropriate depending on the chemical structure of the diffusion-resistant coupler.

In the present invention, a latex dispersion method and an oil-in-water emulsion dispersion method are particularly effective. These dispersion methods are well known, and the latex dispersion method and its effects are described in Japanese Patent Application Laid-open Nos. 49-74538 and 51-59943,
54-32552 and Research Disclosure, August 1976, /1614850, pages 77-79, suitable latexes include, for example, styrene, ethyl acrylate, n-butyl acrylate, n-
Butyl methacrylate, 2-acetoacetoxyethyl methacrylate, 2-(methacryloyloxy)ethyltrimethylammonium methosulfate, 3-(methacryloyloxy)propane-1-sulfonic acid sodium salt, N-inzolobyl acrylamide, N-[2-( 2
-methyl-4-oxypentyl)] acrylamide, 2
- Homopolymers, copolymers and terpolymers of monomers such as acrylamide-2-methylpropanesulfonic acid and the like. Oil-in-water emulsion dispersion method 1'i, a conventionally known method Q) for dispersing hydrophobic additives such as couplers can be applied, and the above-mentioned diffusion-resistant coupler is dissolved in a high boiling point solvent, and a hydrophilic colloid such as gelatin is dispersed. The silver halide used in the silver halide emulsion layer used in the present invention includes silver chloride, silver bromide, silver iodide, silver chlorobromide, and silver iodobromide. These silver halide grains may be of coarse or fine grain size (grain size distribution may be narrow or wide.

Further, the crystals of these silver halide grains may be normal crystals or twin crystals, and any ratio of [100] planes to [111] planes can be used. Furthermore, even though the crystal structure of these silver halide grains is uniform from the inside to the outside,
The inside and outside may have a different layered structure. Further, these silver halides may be of the type mainly formed on the surface of the latent @ or of the type formed inside the grains. These silver halide grains can be prepared by known methods commonly used in the art.

A silver halide photographic emulsion in which silver halide grains are dispersed in a binder liquid can be sensitized with a chemical sensitizer. Chemical sensitizers that can be advantageously used in combination in the present invention are roughly classified into four types: noble metal sensitizers, sulfur sensitizers, selenium sensitizers, and reduction sensitizers.

As the noble metal sensitizer, gold compounds and compounds such as ruthenium, rhodium, palladium, iridium, and platinum can be used.

In addition, when using a gold compound, ammonium thiocyanate and sodium oceanate may be used in combination.

As the sulfur sensitizer, in addition to activated gelatin, sulfur compounds can be used.

As selenium sensitizers, active and inactive selenium compounds can be used.

Examples of reduction sensitizers include monovalent tin salts, polyamines, bisalkylaminosulfides, cyanide compounds, iminoaminomethanesulfinic acid, hydrazinium salts, and hydrazine derivatives.

In addition to the above-mentioned additives, the silver halide photographic material according to the present invention may further contain stabilizers, development accelerators, hardeners, surfactants, anti-staining agents, lubricants, DIR substances, and other photographic materials. Various additives useful for photosensitive materials may be added.

The halogen photographic material according to the present invention thus constructed is imagewise exposed and then developed by a known method. For example, in the case of silver halide color photographic materials, the following color development treatment is performed. First, color development is performed using a color developing solution containing a color developing agent. or,
A color developing agent or its breaker is contained in the silver halide color photographic light-sensitive material, and this light-sensitive material is color-developed with a so-called activator liquid. If necessary, black and white development may be performed prior to the color development. After the color development is completed, bleach-fixing and water washing are usually carried out according to conventional methods. In some cases, color development using a color developer or activator solution, bleach-fixing, and water washing may be performed independently, but instead of performing two or more of them independently, these functions can be performed once (in one bath). ) is also possible. In the present invention, it is preferable that at least one of the solutions used in the development process is more alkaline than pH 9.

By using the silver halide photographic material of the present invention, the fluorescent whitening effect is enhanced, and a high contrast image with an increased background whiteness can be obtained. Furthermore, the generation of static marks should be effectively prevented without impairing sensitivity. Furthermore, depending on the additive used in the present invention, there is no fear of coloring and contamination, and in this respect as well, the effect of improving the white background is fully exhibited. Furthermore, since the sensitivity is not impaired in color photographic materials, the color reproducibility is good, and it can be said to be a silver halide photographic material especially for direct viewing.

Hereinafter, the silver halide photographic material of the present invention will be explained in detail with specific examples #3A, but the embodiments of the present invention are not limited to these examples.Example 1 Silver halide photosensitive phase having the layer structure shown in Table 1
+ was created.

The numbers in Table 1 represent the coating amount of each material in mg/dm2. In other words, starting from the top surface of the polyethylene-covered paper substrate, the coating amount of silver shown in Table 1 is halogenated. a first layer containing a silver emulsion layer;
The fourth layer was coated by laminating the layers from layer to sixth layer, and the fourth layer contained polyvinylpyrrolidone (coulometric average molecular weight 360,000,
(indicated by P-1 in the table) and the exemplified compound UV-7 as an ultraviolet absorber were contained in the coating amounts shown in Table 1. Further, in any of the layers from the first layer to the sixth layer, the above-mentioned exemplary compound FB-1 (indicated by FB-1 in Table 1) was shown in Table 1 as a fluorescent brightener related to the present invention. Samples 1.2 and 3, which are silver halide color photographic light-sensitive materials according to the present invention, and comparative samples]
(not containing FB-1), 2.3 and 4 were obtained.

Each unexposed sample of Samples 1 to 3 and Comparative Samples 1 to 4 obtained by
Conveyance was repeated 50 times at a conveyance speed of 8,000 sheets/hour. Separately, tape the emulsion side of each of these samples with adhesive tape (
Product name Nisron No. 360. (manufactured by Sekisui Chemical Co., Ltd.)
After pasting and peeling off, each of these samples was subjected to color development using the processing steps and processing solution compositions shown below.Temperature (°C) Time Color development 33 3 minutes 30 seconds Bleach-fixing
33 Wash with water for 1 minute and 30 seconds 333 minutes dry 80 [Color development 7p! , Composition] [Bleach-fixing solution composition] The relative fluorescence intensity of each sample thus treated was measured by the method shown below, and the presence or absence of static marks was also observed. The results are shown in Table 2.

[Measurement of Relative Fluorescence Intensity] The reflection density of each developed sample was measured using a color analyzer (Model 607, newly manufactured by Hitachi Seisakusho). Furthermore, a colored glass filter (UV-39, manufactured by Tokyo Shibaura Electric Co., Ltd.) was installed in the light source of this analyzer, and the reflection density of each sample was measured through the filter. Measure the difference in reflection density when the light source has and does not have a filter,
The difference in reflection density at the maximum fluorescence wavelength of each fluorescent brightener was defined as the fluorescence intensity. The relative value of this fluorescence intensity was defined as relative fluorescence intensity.

Table 2 As is clear from Table 2, the σ5 silver halide photographic light-sensitive material of the present invention contains a fluorescent brightener in a layer below the ultraviolet absorber-containing layer (fourth layer) furthest from the support. This indicates that the fluorescence intensity after color development treatment was low and the occurrence of static marks was reduced. Therefore, the method of the present invention has good effects in terms of improving whiteness and preventing static marks.Example 2 A silver halide photographic material having the layer structure shown in Table 3 was prepared. did.

The numbers in Table 3 indicate the coating amount of each material in mg/drr.
The first to seventh layers including the coated silver weighing silver halide emulsion layer shown in Table 1 were laminated and coated on Ll, and the fourth layer was coated with the above-mentioned fluorescent brightener. Compound FB-3 and the exemplified compound UV-7 as the ultraviolet absorber were used as the first
It was contained in the coating amount shown in the table. Furthermore, vinylpyrrolidone-vinyl acetate (7:3) copolymer (
Samples 4.5 and 6, which are silver halogenide photographic light-sensitive materials according to the present invention, containing silver halide (indicated by P-2 in Table 1) in the coating amount shown in Table 1, and Comparative samples 4 (not containing P-2), 5.6 and 7 were obtained.

Sample 4.5 and Comparative Samples 4 to 8 (obtained in the above manner) were transferred to a printing machine and subjected to an adhesive tape peeling test in the same manner and under the same conditions as in Example 1. After going through the same processing steps as in 1, the relative fluorescence intensity was measured in the same manner and the occurrence of static marks was observed.The results are shown in the fourth light.

As is clear from Table 4, the silver halide photographic material of the present invention has high fluorescence intensity (and has very few static marks).

Example 3 It has the same layer structure as Sample 2 prepared in Example 1, and FB
-1 instead of FB-10, FB-2, or FB-5
Silver halide color photographic light-sensitive materials were prepared in which No. 2 #I contained silver halide, and designated Samples 6.7 and 8, respectively.

The unexposed samples of Samples 6, 7 and 8 thus obtained were subjected to the same tests and treatments as in Example 1, and the relative fluorescence intensity was measured and the occurrence of static marks was observed. The results are shown in Table 5.

Table 5 As is clear from Table 5, the silver halide color photographic light-sensitive material according to the present invention has high fluorescence intensity (and has very little static mark generation).

Example 4 Silver halide copies having the layer structure shown in Table 6 The numbers in Table 6 represent the coating amount of each material in mg/dm.

That is, the sixth sample of the same layer structure as the sample of Example 2
The layer contains the same polyvinylhyloridone as in Example 1 as a scavenger and the exemplified compound UV-12 as an ultraviolet absorber.
and the above-mentioned exemplified compound F as a fluorescent brightener.
Sample 6 containing B-3 in the third layer and F El −
Comparative sample 9 containing no 3 was obtained.

The relative fluorescence intensity was measured in the same manner as in Example 1 using Sample 6 and Comparative Sample 9 obtained in Example 2 and the unexposed sample of Comparative Sample 5 obtained in Example 2. The occurrence of tick marks was observed.Furthermore, each sample was exposed to colored light, green light, and red light using Sensitivity Color 1 (KS-7 model, manufactured by Konishiroku Photo Industry Co., Ltd.). After exposure through the original wedge and the same development process as in Example 1, the sensitivity was measured.The relative sensitivity of each sensitivity of the comparison sample was calculated as 00, and the results were combined with the Shown in the table.

Table 7 As is clear from Table 7, in the silver halide photographic material 7 of the present invention, sensitivity or other photographic properties (
The generation of static marks is prevented, and the whiteness of unexposed areas is clearly improved without affecting the gradation, fog, etc.).

Next, each of the obtained samples was exposed to radiation for 200 hours using a xenon fade meter, and then the concentration of the yellow colored dye was measured. The results are shown in Table 8.

Table 8 As is clear from Table 8, no increase in yellow stain was observed in the σ) silver halide photographic light-sensitive material of the present invention, and the material was a good light-sensitive material with little yellow stain.

Procedural Amendment W (Voluntary) 57.11.1 Showa Date: Kazuo Wakasugi, Commissioner of the Office of Public Relations 2, Name of the invention: Silver halide photographic light-sensitive material 3 Relationship with the case of the person making the amendment Address of the patent applicant: Shinjuku-ku, Tokyo Nishi-Shinjuku 1-26-2 Name
Name (127) Roku Konishi Photo Industry Co., Ltd. 4 Agent 5 Subject of amendment Specification attached to the application 6 Contents of amendment As shown in the attached document 1978 Commissioner of the Patent Office Kazuo Wakasugi 1 Indication of the case 1982 Patent Application No. 1826112, Title of Invention: Silver Halide Photographic Light-sensitive Material, 3, Relationship with the Amendment Case Patent Applicant Address: 1-26-2 M, Nishi-Shinjuku, Shinjuku-ku, Tokyo
'Bottom (name) (127) Roku Konishi Photo Industry Co., Ltd. Representative Director Nobuhiko Kawamoto 4, Agent 5, Date of amendment order Voluntary 6, Number of inventions increased by amendment None (1) 1982 regarding the patent application in question The detailed specification of the patent application (hereinafter referred to as “
"...Halogen float number..." on page 19, line 10 ("Jyoyo specifuku") is changed to "...Halogen atom, fist...".

(2) 1 of the 3rd to 2nd lines at the bottom of page 28 of the written specification...
Sodium thiocyanate) J'&r---・Sodium thiocyanate---''.

Claims (1)

[Claims] A hydrophobic support containing at least one silver halide emulsion layer, a layer containing an ultraviolet absorber, a layer containing a fluorescent brightener, and a compound capable of capturing the fluorescent whitening agent. a layer is provided, wherein the organic layer of the fluorescent brightener and the layer containing a compound capable of capturing the fluorescent brightener are separate layers, and The whitening agent-containing layer is disposed at a position closer to the ultraviolet absorber-containing layer that is provided at the furthest position from the support among the ultraviolet absorber-containing layers, and the fluorescent brightener A compound capable of capturing the ultraviolet absorbent is located in the ultraviolet absorber-containing layer provided at the farthest position and/or at a position farther from the support than the ultraviolet absorber-containing layer provided at the farthest position. A silver halide photographic light-sensitive material characterized in that silver halide is contained in a layer.