JPS60229023A - Photosensitive material for silver salt diffusion transfer - Google Patents

Abstract

PURPOSE:To provide an antihalation method for a diffusion transfer type silver halide negative photosensitive material instead of the method of using carbon black by incorporating an antihalation layer contg. at least one kind of oil-soluble dyes represented by formula I. CONSTITUTION:A silver halide emulsion layer is formed on the side of a support same as the antihalation layer in the silver salt diffusion transfer type photosensitive material, and the antihalation layer is characterized by contg. at least one of oil-soluble dyes represented by formula I in which R1-R8 are each H, halogen, hydroxy, alkoxy, amino or optionally substd. amino. It is preferable to form this antihalation layer on the support and said silver halide emulsion layer on this antihalation layer to prepare the silver salt diffusion transfer type photosensitive material, and besides, it is preferable in another mode to form the antihalation layer contg. this oil-soluble dye and a developer on the support, and forming a silver halide emulsion layer on the same side as the antihalation layer with respect to the support to prepare a photosensitive material.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a photographic material used in a silver salt diffusion transfer method, particularly a photosensitive material containing an antihalation layer.

(Prior art) The principle of silver salt diffusion transfer method C (hereinafter referred to as DTR method) is described in U.S. Patent No. 31, No. 0/4A),
well known.

In the DTR process, silver complex salts are imagewise transferred by diffusion from a silver halide emulsion layer to an image-receiving layer, and they are converted into a silver image, often in the presence of physical development nuclei.

For this purpose, the imagewise exposed silver halide emulsion layer is placed in contact with, or brought into contact with, the image-receiving layer in the presence of a developing agent and a silver halide complexing agent and the unexposed silver halide emulsion layer is placed in contact with the image receiving layer in the presence of a developing agent and a silver halide complexing agent. is exchanged with a soluble silver complex salt. In the exposed parts of the silver halide emulsion layer, the silver halide is developed to silver (chemical development) and therefore it cannot be dissolved or diffused any further. In the unexposed portions of the silver halide emulsion layer, the silver halide is converted to soluble silver complex salts which are transferred to the image receiving layer where they form a silver image, usually in the presence of physical development nuclei.

In a direct positive silver halide emulsion, the effects of silver halide in exposed and unexposed areas are reversed.

The silver salt diffusion transfer method has a wide range of applications.

Among these, high concentrations in the image-receiving layer are used, especially in methods for document reproduction or, in particular, for the preparation of printing materials.

It is necessary to obtain silver images of high contrast and sharpness. Furthermore, the image reproduction characteristics, that is, the characteristics of reproducing an image as faithful as possible to the original @1, for example, a ruled line with a line width of several tens of microns, into a fine line image with the same line width, especially positive image ruled lines (black lines) on a white background. It is necessary to faithfully reproduce all the ruled lines of a document containing negative image ruled lines (white lines) on a black background, and to have a wide tolerance range for the exposure amount necessary to reproduce these black lines and white lines. It is extremely important to reproduce halftone dot images that are faithful to the original by printing a continuous-tone original through a contact screen and performing diffusion transfer development.

It is well known that a silver halide photosensitive material (negative) is provided with an antihalation layer e4 in order to improve these image reproduction characteristics. If there is no antihalation layer, there will be drawbacks such as failure to reproduce fine lines and narrow exposure latitude. Further, in a halftone image, one gradation becomes hard, resulting in a disadvantage that the reproduction of details is significantly inferior.

In order to improve these image reproduction characteristics, carbon black is usually used as a pigment for the antihalation layer.

On the other hand, conventional processing compositions used in the DTR method include silver halide complexing agents such as thiosulfates, alkaline agents such as sodium hydroxide, and sulfites such as 1i[+1. It consists of a developing agent such as hydroquinone and l-phenyl-3-pyrazolidone.

In highly alkaline processing compositions containing this developing agent, the developing agent has the disadvantage that it is subject to air oxidation and expires. It is known that this drawback can be largely avoided by incorporating the hydrophilic colloid into a permeable hydrophilic colloid layer.

However, the developer is not used in the silver halide emulsion layer or the protective layer.
Even if it is added to non-photosensitive layers such as intermediate layers and undercoat layers, air oxidation of the developer cannot be completely avoided, and as a result,
Unfavorable effects such as a decrease in development speed, decrease in sensitivity, decrease in silver image density, and occurrence of fog occur.

The expiration of this developer is affected not only by air oxidation but also by other factors, and carbon black is recognized to be involved.

Current agents +7) Expiration occurs with most of the hydroquinones, mp7 minophenols, ascorbic acid, dihydroxynaphthalenes, etc.

In particular, l-phenyl-3-pyrazolidones have a large loss.

Although carbon black is well known to be useful as an antihalation pigment, it is also known to cause fog to stored silver halide photosensitive materials. (see book).

Therefore, incorporating carbon black into a silver halide photosensitive material poses a storage problem, and furthermore, it is difficult to incorporate carbon black into a silver halide photosensitive material.
The inclusion of phenyl-3-pyrazolidones in a silver halide photographic material poses a greater problem in terms of storage.

It is generally believed that the causes of fogging and adverse effects on storage stability are caused by impurities in carbon black.

Therefore, a method to replace carbon black as a halation prevention method has been strongly desired.

Dyes are generally considered as antihalation materials that can replace carbon black.

However, the process does not diffuse to adjacent layers.

It is required to have the following properties: not to be eluted during washing with water, to be able to be incorporated into silver halide sensitive materials at high concentrations to prevent halation, and to have no effect on fogging or storage stability due to the dye itself or its impurities. However, it is difficult to find a dye that satisfies these requirements. Many dyes are incorporated into photosensitive materials by dispersion in oil or surfactants, for example.

Due to poor dispersion and dissolution, it may not be possible to incorporate the antihalation function until it has an antihalation function, or it may diffuse into the adjacent silver halide layer during coating and desensitize it.

Impurities in the cis dye that is decolorized in the coating solution and eluted into the rinsing solution or washing water can cause desensitization and adversely affect storage stability.

(Object of the Invention) Therefore, an object of the present invention is to provide a method for preventing halation of a negative material for diffusion transfer (silver halide sensitive material) in place of carbon black, and another object of the present invention is to provide a method for preventing halation of a negative material for diffusion transfer (silver halide sensitive material), which can replace carbon black. Another object of the present invention is to provide a method for preventing halation that does not adversely affect fogging or storage stability.Another object of the present invention is to provide a method for preventing halation that does not cause discoloration in the coating solution and does not diffuse into adjacent layers during coating of light-sensitive materials for diffusion transfer. Another object of the present invention is to provide a method for preventing elution and sink-halation during processing.

Another object of the present invention is to provide an antihalation dye to replace carbon black in a light-sensitive material for diffusion transfer that contains a developer. An object of the present invention is to provide an antihalation dye for a light-sensitive material for diffusion transfer.

(Structure of the Invention) The above aspects of the present invention have been achieved by a light-sensitive material for silver salt diffusion transfer containing an antihalation layer containing at least one oil-soluble dye represented by the following general formula (I).

CI) In the formula, R1 to R8 each represent one hydrogen atom, a halogen atom (e.g. Ct%Br), a hydroxy group, or an alkoxy group (the number of carbon atoms in the alkoxy group is preferably 1 to /J).
For example, methoxy group, ethoxy group).

7 represents an amino group or a substituted amino group.

The substituents of the substituted amino group are alkyl groups (including cycloalkyl groups), substituted alkyl groups (substituents, 8C1)
lin atom, human axy group, alkoxy group.

Carboxy groups, sulfo groups, etc. are used. ,).

Aryl group, substituted aryl group (halogen atom, hydroxy group, alkyl group, substituted alkyl group, alkoxy group, substituted alkoxy group, carboxy group, sulfo group, etc. are used as the substituent).

-802-Re, -COR1G, etc.

A halogen atom, a hydroxy group, an alkoxy group, a carboxy group, a sulfo group, etc. are used as the substituent for the substituted alkyl group to be substituted with the substituted ring group. As a substituent of a substituted alkoxy group substituted with a substituted teryl group, an aryl group (such as a phenyl group), an alkoxy group (such as a methoxy group or an ethoxy group), an aryloxy group (such as a phenoxy group) .

A hydroxy group or the like is used.

R9 and RIO each represent an alkyl group, an it-substituted alkyl group, an aryl group, an rit-substituted aryl group [the substituents include a halogen atom, a human axy group, an alkyl group (including substituted alkyl groups), an alkoxy group (substituted alkoxy group), ), a carboxy group, a sulfo group, etc. In the above formula, preferably R1 to R8 are each a hydrogen atom, a halogen atom, a hydroxy group, an alkoxy group, an amino group,
or represents a substituted amino group, and the substituted amino group has the following conditions. The substituents of the substituted amino group are alkyl groups (including cycloalkyl group alloys), lt-substituted alkyl groups, aryl groups, It-substituted aryl groups -802-Re, -Co-Rt
It is o.

The substituents of the substituted ester group are a hydrogen atom, a hydroxy group, an alkyl group (including a substituted alkyl group), an alkoxy group (including an If-substituted alkoxy group), a carboxy group, and a sulfo group.

The substituents of the substituted alkyl group substituted with the substituted aryl group are a halogen atom, a human axy group, an alkoxy group, a carboxy group, and a sulfo group.

Substituents of the substituted alkoxy group substituted with the substituted aryl group are an aryl group, an alkoxy group, an aryloxy group, and a hydroxy group.

R9 and RIG each represent an alkyl group, a substituted alkyl group, an alkyl group, or a substituted alkyl group.

In the above formula, R1-R are each more preferably.

A hydrogen atom, a halogen atom, an alkoxy group, or a substituted amine group.

The above-mentioned substituted amino group is preferably one that does not contain a carboxy group or a sulfo group in the substituent.

Specific examples of substituted amino groups include the following groups.

-NHC4H9, -NHCH2C25, -NHHC18
H37, -NHC2H40H1-NHCH2CH2(O
H) CHa, -NHCH2CH2CH20) L -NH
CH2CH2-NHCH2CHH5, -NHCH2CH
2zo a, -NHC2H40C2H40H1-NHCH2
COO ratio NHCH2CHzCOOH, -NHCH2So
aNa.

0C14H29 LJL;113 t13 -NHCOCH3, -NH("O(:sHt 1, -N
HCOCI 3H2? , -NHCO(CH2) 3cl
-, -NHCOCHzCl.

Specific examples of the dye represented by formula (I) are listed below.

In a preferred embodiment of the present invention, at least one of the above-mentioned oil-soluble dyes is applied on a support. Examples include photosensitive materials for silver salt diffusion transfer coated with an antihalation layer containing:

A further preferred embodiment of the present invention is a light-sensitive material for silver salt diffusion transfer in which a silver halide photographic emulsion layer is provided on the same side of the support as the antihalation layer, in which the antihalation layer has the following general formula (I). Examples include photosensitive materials for silver salt diffusion transfer, which are characterized in that they contain at least one oil-soluble dye represented by:

Furthermore, a primary antihalation layer is provided on the support,
A light-sensitive material for silver salt diffusion transfer on which silver halide photographic emulsion IIf is coated is preferred.

Another preferred embodiment is a light-sensitive material in which an antihalation layer containing the above oil-soluble dye and developer is provided on a support, and a silver halide photographic emulsion is provided on the same side as the antihalation layer.

Another preferred embodiment is a light-sensitive material in which an antihalation layer Ii #f containing the above-mentioned oil-soluble dye is provided on a support, and a silver halide photographic emulsion containing a developer is provided on the same side of the antihalation layer. .

Furthermore, in this embodiment, it is also preferable that the antihalation layer also contains a current ironing agent.

The compound represented by the general formula CI) used in the present invention is
It is oil-soluble and insoluble in aqueous solutions.

Therefore, in order to introduce it into a silver halide photosensitive material, a method commonly used for dispersing couplers in color photosensitive materials can be used. Specifically, oil dispersion and latex dispersion methods are common. Oils used for oil dispersion include tri-n-butyl phosphate, tri-n-pentyl phosphate, tri-n-hexyl phosphate, dibutyl octyl phosphate,
Alkyl phosphates such as trioctyl phosphate, trinonyl phosphate, triaryl phosphates such as tricresyl phosphate, dimethylbenzene phosphate, dimethyl phthalate, diethyl phthalate, dipropylphthalate, dibutyl phthalate, dibentylphthalate, dihebutyl phthalates, dialkyl phthalates such as dioctyl phthalate, and the like can be used. Preferred oils vary depending on the type of oil-soluble dye, but include tricresyl hoffate, dimethylbenzenhoffate, dibutyl phthalate, dimethyl phthalate, and dimethyl phthalate.

At least one oil-soluble dye represented by the general formula (I) is dissolved in these oils and emulsified and dispersed in a gelatin solution using a surfactant such as alkyl sulfonic acid sorters and alkyl benzene sulfonic acid sodas. can be used. The compound of the general formula (I) of the present invention can be used in an amount ranging from o.ozg to i.oIi per square meter.

As one example, the negative material for diffusion transfer of the present invention contains at least /')f of the compound of general formula (I) and has the following antihalation I#j? It can be produced by providing it on a support and providing a silver halide emulsion layer thereon.

When a developing agent is contained, it is preferably contained in the layer containing the compound of general formula (I) (antihalation layer), but it can also be contained in the silver halide emulsion layer.

Developers used in the present invention include hydroquinones such as hydroquinone, t-butylhydride C1,/N, and methylhydroquinone, and 3-pyrazolidinones such as l-phenyl-3-pyrazolidinone, Hiroshi, l-dimethyl-7-phenyl-3- Pyrazolidinone, Hiro-Hydroxymethyl-
l-Methyl-7-phenyl-3-pyrazolidinone, noon;
(French-cymethyl-/-p-) lylu-3-pyrazolidinone, Hiro-hydroxymethyl-Ni-methyl-/-p-)
+3-3-pyrazolidinone, /-p-) Re-3-
Pyrazolidinone! , j-dimethyl-/-phenyl-3
-pyrazolidinone, goomethyl-1,! -diphenyl-3-pyrazolidinone, j-methyl-7, j-diphenyl-3-pyrazolidinone, ≠-methyl-7-phenyl-J
-Hilazo11)"n,j-methyl-/-phenyl-3-
Pyrazolidone, μ.

μm dihydroxymethyl-nophenyl-3-pyrazolidone, terdihydroxymethyl-1-1-tolyl-
3-pyrazolidone, /,<4-diphenyl-3-pyrazolidone, i,z-diphenyl-3-pyrazolidone, Hiro-
Hydroxymethyl-l-phenyl-3-pyrazolidone, terhydroxymethyl-l-phenyl-3
-pyrazolidone, l-6-111l J-pyrazolidone, l-m-tolyl-3-pyrazolidone, / -p -)
Ryl-3-pyrazolidone, U, t-dimethyl-1-phenyl-3-pyrazolidone, /-p-hydroxyethylphenyl-3-pyrazolidone%/l≠-dimethyl-3-pyrazolidone, and the like are used.

In the present invention, one kind of compound selected from each of hydroquinones and 3-pyrazolidinones can be used, but it is preferable to use a combination of hydroquinones and 3-pyrazolidinones, such as evahydroquinone and hydroxymethyl- combination of goomethyl-/-p-) lylu-3-virazolidinone, combination of hydroquinone and ≠-hydroxymethyl-≠-methyl-7-phenyl-3-pyrazolidinone, hydroquinone and 4A-dihydroxymethyl-7-phenyl-3 - combination with pyrazolidinone,
or hydroquinone and l9μm dihydroxymethyl-/
-p-) Can be used in combination with lyru-3-pyrazolidinone.

The content of hydroquinones in photographic materials is approximately 0.01 mole per 7 mole of silver4. J mol, preferably about 0.1
Moles - approximately i,z moles. Similarly, the content of pyrazolidinones is from about O.oot moles to about o.t moles, preferably from about 0.0λ to about o.itt moles, per mole of silver.

Silver halides used in the present invention include silver chloride, silver chlorobromide,
Any of silver bromide, silver iodobromide, and silver iodochlorobromide can be used.

In order to obtain images with particularly good sharpness and high contrast, the silver halide emulsion used in the present invention preferably has a silver halide composition of silver chlorobromide or silver chlorobromoiodide, with a bromide content of about 0.1 More than 100 molar to about 100%, preferably about 000000000000000000000000000000000000000 to approximately molar, and the iodide ranges from θ to about 0. 7θ~0.1 molar ratio, and the remainder is chloride.

In the emulsion, the ratio of hydrophilic colloid to silver halide (expressed as a value converted to silver nitrate) K is approximately 0. /~
about 3.0, preferably about 0°3 to about J,j, more preferably about 0. j ~ about 2.3.

The grain size of the silver halide used in the present invention is not particularly limited, but is preferably 0. /lt~3.0mm especially 0. l
n~O0jμ is desirable.

The silver halide used in the present invention contains Rh.

A trace amount of heavy metals such as Pd, Ir, Pb, Ni, Cu, and Zn1Au can be included. As the sensitizer, sulfur sensitization, gold sensitization, or a combination thereof can be used.

The silver halide emulsion layer is typically further spectrally sensitized to a range of about 330 to about 210 nm, but can also be panchromatically sensitized.

Photographic emulsions use sensitizing dyes to absorb relatively long-wavelength blue light.
May be spectrally sensitized to green, red and/or infrared light. As sensitizing dyes, cyanine dyes, merocyanine dyes, complex cyanine dyes, complex merocyanine dyes, holopolar cyanine dyes, styryl color patches, hemicyanine dyes, oxonol dyes, hemioxonol color patches, etc. are used simply or in combination. be able to.

The silver halide emulsion layer and/or the image-receiving layer may contain any compound commonly used for implementing the silver salt diffusion transfer method. These compounds can include coating aids such as saponin and polyalkylene oxides, hardeners such as formalin and chrome alum, and plasticizers. The support used for the photosensitive material, the image-receiving material, or the so-called monosheet containing both of these materials is any commonly used support. These include paper, glass, films such as cellulose acetate films, polyvinyl acetal films, polystyrene films, polyethylene terephthalate films, metal supports coated on both sides with paper, paper supports coated on one or both sides with alpha-olefin polymers such as polyethylene. body can be used.

Although the image-receiving layer used in the present invention necessarily contains physical development nuclei,
It usually also contains hydrophilic colloid substances, as well as brightening agents such as fluorescent brighteners, stain inhibitors such as boric acid,
Coating surfactants, hardeners, etc. may be included.

Physical development nuclei include heavy metals such as zinc, mercury, lead, cadmium, iron, chromium, nickel, tin, cobalt, and copper;
Metals such as nomoradium, platinum, silver, and gold, as well as sulfides, selenides, tellurides, etc. of these heavy metals,
All conventionally known physical considerations can be used. These physically developable nuclear materials can be prepared by reducing the corresponding metal ions to form a metal colloidal dispersion, or by mixing a metal ion solution with a soluble sulfide, selenide or telluride solution. by making colloidal dispersions of metal sulfides, metal selenides, or metal tellurides.

Regarding the function of the physical development nucleus material in the silver salt diffusion transfer method, for example, Nidwin, H., and Rand et al.
U.S. Patent No. 2.774A, jA published on December 4th
It is stated in No. 7. In order to obtain an image receiving element giving a high contrast image, these physical development nuclei are normally included on the image receiving layer in an amount of 10-6 to 1Og/TrL2, preferably 10-10, lit/m2.

A light-sensitive material for silver salt diffusion transfer is obtained from at least seven silver halide emulsion layers provided on a support, and the silver halide in terms of silver nitrate is generally from -69 to 3. z
It is applied in the range of g7TrL2.

In addition to this silver halide emulsion layer, auxiliary layers such as an undercoat layer, an intermediate layer, a protective layer, and a release layer are provided as necessary. For example, the photosensitive material used in the present invention is
It is possible to use a water-permeable binder such as methyl cellulose, sodium salt of carboxymethyl cellulose, sodium alginate, etc. as a coating layer of the silver halide emulsion layer to ensure uniform transfer, as described in 3a1, 1973, 3t-/1ri3s, etc. The layer can be thin so that it does not substantially prevent or inhibit diffusion. Hydrophilic colloid substances such as gelatin, gelatin derivatives such as phthalated gelatin, carboxymethyl cellulose,
cellulose derivatives such as hydroxymethylcellulose,
Dextrin, soluble starch, polyvinyl alcohol,
Contains one or more hydrophilic polymer colloid substances such as polystyrene sulfonic acid.

The treatment composition for silver salt diffusion transfer cleaning used in the present invention is an alkaline substance, such as sodium hydroxide, hydration power 1) Rum, lithium hydroxide, tertiary sodium phosphate;
Preservatives, such as sodium sulfite, thickeners such as carboxymethyl cellulose, hydroxyethyl cellulose; antifoggants, such as potassium bromide; silver halide complexing agents, such as thiosulfate; toning agents, such as l-phenyl-tar. Mercaptotetrazole: Surfactants such as polyoxyalkylene compounds, alkylbenzenesulfonic acids, onium compounds: Current iron cores such as British Patent No. 7.
θ0/, those described in No. 111 and, if necessary, a developing agent such as those described above. The pH of the processing solution is usually about J,/44, preferably about 10-/J,0. It varies depending on the desired image, the type and amount of various compounds used in the processing liquid composition, etc.

In addition to the silver halide emulsion layer, the light-sensitive material used in the present invention may optionally be provided with auxiliary layers such as an undercoat layer, an intermediate layer, a protective layer, and a release layer. For example, special public show 3t-iri3a,
A water-permeable binder such as methylcellulose, sodium salt of carboxymethylcellulose, sodium alginate, etc., as described in EJI-/1131, etc., can be used as a coating layer for the silver halide emulsion layer to ensure uniform transfer.

(Actions and Effects of the Invention) The effects of the present invention are remarkable in silver salt diffusion transfer photosensitive materials. In the case of diffusion transfer processing, the processing solution contains a silver halide solvent such as sodium thiosulfate, and development of the silver halide must be stopped before the action of this solvent has progressed sufficiently. It won't happen. Therefore, in order to speed up development, either the developer solution has a high pH of 0 or more, or the developer is built into the photosensitive material and has a pH of 0 or higher.
/, a method of processing with 0 or more activators has been adopted. In other words, the developing solution must be strong, and compared to conventionally processed light-sensitive materials, light-sensitive materials for diffusion transfer are more susceptible to staining caused by carbon black and deterioration during storage. There is. Therefore, the effect of the oil-soluble dye used in the present invention becomes remarkable.

Furthermore, to explain the present invention in detail, diffusion transfer processing is often carried out in a processing machine that does not have a temperature control function, and is usually processed at around 2,000 ℃, but depending on the environment, When the temperature is around JO0C, it is more advantageous to use the oil-soluble dye of the present invention than carbon black, which tends to cause fogging.

The antihalation dye used in the present invention is contained in the processing solution.
Furthermore, there is virtually no bathing during washing. Therefore, processing liquid and receiving @! It has an excellent feature of not contaminating the layer.

(Example) Example 1 On one side of a 110 g/TrL2 paper support coated on both sides with polyethylene, an emulsion of dye, carbon black and 0,1177 was added for antihalation as shown in Table-7.
Hydroquinone of m2 and ≠-hydroxymethyl-Hiro-methyl-7-phenyl-3-pyrazolidinone of 0,2/1/TrL2? Gelatin layer containing (gelatin≠, (Nl/m
2) was placed thereon, and silver chlorobromide (2 mol of silver bromide) having an average particle size of 0°3μ was converted into nitrate scissors, and 2. O9/7F1
One kind of light-sensitive materials A, B, C, D, and E were prepared by providing an ortho-sensitized gelatin silver chlorobromide emulsion layer containing .

On the other hand, on another paper support of the same type as the photosensitive material, a receiver (MNfH aqueous colloid) consisting of gelatin containing metal haladium cores and carboxymethyl cellulose (R:) was provided at a dry weight of 3 g/rrL2, and an image receiving material was prepared. was created.

(Preparation of dye emulsion) A specific example compound of the dye of the present invention &j, 3, ≠I was mixed with cresyl phosphate/00 ethyl acetate 100 m
Contains 7g of dodecylinzenesulfonic acid as a solid content dissolved in 1/2gg gelatin aqueous solution 100ml and about t
o'c to prepare an emulsified dispersion using a homogenizer, which was designated as emulsion a. Emulsions of other dyes were prepared in the same manner and designated as b, c, and d.

On the other hand, in order to investigate the storage stability of photosensitive materials, j O'C17
The above photosensitive material μ type was left under the conditions of RHJ day,
The transfer density was compared with the photosensitive material before forced storage.

The processing involves exposing the above-mentioned forcibly preserved and unpreserved sensitive materials with a continuous-tone wedge for sensitometry, bringing the emulsion surfaces of the above-mentioned image-receiving material and the light-sensitive material into contact, and applying complex salt diffusion transfer processing with the following composition. The composition (liquid temperature: 23°C) was passed through a squeezing roller, and after drying, the transmission density of the sample (Dmax before transfer excluding the support) was measured.

Diffusion transfer treatment composition H20r 00 m1 NasPOa ・/21120 7 j 1Na2SO
3tl-09 KBr O,yog Na2S203 Koku9 1-phenyl-yomonomercaptotetrazole 70 daN-methylaminoethanol iog H20/1 By using the dye of the present invention, the transfer density is higher than that of carbon black. It can be seen that the storage stability of the photosensitive material is excellent.

Claims (1)

[Scope of Claims] A light-sensitive material for silver salt diffusion transfer in which a silver halide photographic emulsion layer is provided on the same side of the support as the antihalation layer, wherein the antihalation layer is represented by the following general formula (I). A photosensitive material for silver salt diffusion transfer, characterized in that it contains at least one oil-soluble dye. (I) In the formula, R1 to R8 each represent a hydrogen atom, a halogen atom, a hydroxy group, an alkoxy group, an amine group, or a substituted amine group.