JPH02184851A - Color photosensitive material - Google Patents

Abstract

PURPOSE:To lower min. density without lowering max. density by holding at least photosensitive silver halide, a negative type dye stuff releasing redox compd. and a specified compd. on a support. CONSTITUTION:At least photosensitive silver halide, a negative type dyestuff releasing redox compd. and at least one kind of compd. represented by formula I are held on a support. In the formula I, each of R<1>-R<6> is H, halogen, sulfo, carboxyl, cyano, alkyl, etc., R<1> and R<2> or R<4> and R<5> may bond to each other to form a carbon ring or a hetero ring and Z is a single bond or a divalent org. group. Min. density can be lowered without lowering max. density.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a color photosensitive material, and in particular to a color photosensitive material that uses a negative dye-releasing redox compound and is capable of forming a transferred dye image with a low minimum density. It relates to photosensitive materials.

(Background Art) Color diffusion transfer dye image forming methods using negative dye-releasing redonx compounds (hereinafter referred to as DRR compounds) are well known, for example, in Photographic Science and Engineering (Photo'ograp).
hic 5science and Engineer i
ng ) Volume 1 O, Yahiro, /j! Page~/6≠page, 7/1
Monthly issue, / 974, The Theory of the 7 Otographic Process (The Theory of
the Photographic Process
) Edition ≠, pp. 36-37, T.

H, Jamesl! , Mscmillan Pu
blishingCo, Inc., New York, /
It was first described in 1977 and is now used in instant photography.

Here, the DRR compound refers to a non-diffusible compound that releases a diffusible dye or dye precursor by directly reducing silver halide or reducing an oxidized product of a developer generated by development of silver halide. It is a compound, so it can be used in combination with a surface latent image type silver halide emulsion (negative emulsion) to produce a negative image, or with a direct positive emulsion such as a combination of an internal latent image type silver halide emulsion and a nucleating agent. When used in combination, a positive image can be obtained. Specific examples of this DRR compound are described in the above-mentioned documents as well as numerous patent specifications mentioned below.

In the color diffusion transfer method using a DRR compound, there is a problem that it is difficult to achieve a sufficiently low minimum density. This is considered to be because the DRR compound is oxidized due to silver halide fog, and unnecessary dyes are released.

Research Disclosure No. 1! /volume, item/
! 16λ, p. 77, 7A, in order to suppress the increase in minimum concentration due to such causes, it has been proposed to use hydroquinone compounds that act as competitive compounds for DRR compounds. However, the hydroquinone compounds described in this document have not yet achieved a sufficient effect of lowering the minimum concentration.

On the other hand, for example, US Pat.
λ-/Hiro6ko3! Conventional hydroquinone compounds, which are known to be incorporated into photosensitive materials in the field of silver halide photosensitive materials, as described in Kota No. 2-1063, have reduced maximum concentration and This has the disadvantage that it actually increases the concentration.

(Problems to be Solved by the Invention) Therefore, an object of the present invention is to provide a color photosensitive material using a DRR compound that is highly effective in reducing the minimum density and does not reduce the maximum density. .

(Means for Solving Problem a) An object of the present invention is to provide a color light-sensitive material having at least a combination of a silver halide emulsion and a DRR compound on a support, and a compound represented by the following general formula (I). Achieved by adding at least/amber.

In general formula (I), R1, R2, R3, R4, R5R6 are hydrogen atoms, halogen atoms, sulfo groups, carboxyl groups,
Cyano group, alkyl group, aryl group, acylamino group,
represents a sulfonamide group, an alkoxy group, an aryloxy group, an alkylthio group, an arylthio group, an acyl group, an acyloxy group, a sulfonyl group, a carbamoyl group, an alkoxycarbonyl group, or a tahasulfamoyl group;
2. R4 and R5 may jointly form a carbocycle or a heterocycle. Z represents a single bond or a divalent organic group.

General formula (I) will be explained in more detail. R1, R2H%R
%R%R is a hydrogen atom, a halogen atom (e.g. chlorine, bromine, fluorine), a sulfo group, a carboxyl group, a cyano group, an alkyl group (including those with a substituent. Number of carbon atoms/~30°, e.g. methyl, t- methyl, cyclohexyl, t-octyl, hexadecyl, benzyl, allyl), aryl group (including those with a substituent; carbon number t~300, e.g. phenyl, p-)lyl), acylamino group (including those with a substituent) .2 to 300 carbon atoms e.g. acetylamino, pe/syylamino), sulfonamide group (carbon a/
~JO0 (e.g., methanesulfonamide, benzenesulfonamide), alkoxy group (including those with a substituent; 7 to 300 carbon atoms, e.g., methoxy, butoxy, benzyloxy, dobusyloxy), aryloxy group (including those with a substituent; carbon Number t ~ 30. For example, phenoxy,
p-methoxyphenoxy), alkylthio groups (including those with substituents; 7-3 Q0 carbon atoms, e.g. butylthio, decylthio), arylthio groups (including those with substituents, 6-300 carbon atoms, e.g. phenylthio, p-hexylthio), siloxyphenylthio), acyl group (including those having a substituent; 2 to 30 carbon atoms; for example, acetyl, benzoyl, hexanoyl), acyloxy group (including those having a substituent; 1 to 30 carbon atoms; for example, acetyloxy) , benzyloxy), sulfonyl group (including those with substituents. carbon number) ~30゜Example td) I'sulfonyl,
benzenesulfonyl), carbamoyl group (including those with a substituent; number of carbon atoms/~30; for example, N, N-diethylcarbamoyl, N-phenylcarbamoyl), alkoxycarbonyl group (including those with a ff substituent; number of carbon atoms, 1 to 300 (for example, methoxycarbonyl, butoxycarbonyl); Furthermore, R 2 , R 2 R 4 and R 5 may jointly form a carbocycle or a heterocycle. Z is a single bond or a covalent organic group (including those having a substituent) having 7 to 60 carbon atoms, such as methylene, ethylene, p-)unilene;

Substituents for R1 to R6 and 2 in general formula (1) include alkyl groups, aryl groups, alkoxy groups, aryloxy groups, sulfo groups, carboxyl groups, amide groups, carbamoyl groups, halogen atoms, and others known to boat fishing. The substituents listed above are listed.

The compound of general formula (1) may form a λ mer (a µ mer as the hydroquinone moiety).

Among the compounds of general formula (1), compounds represented by the following general formula (II) are particularly preferred compounds in the present invention.

In the general formula (It), RR represents the same group as in the general formula (1). R%R represents a hydrogen atom, an alkyl group (having a substituent), carbon number 1 to 300, e.g. methyl, i-propyl, undecyl, be/zyl), aryl (
Including those with substituents. C6 to JO, e.g. phenyl, p-1-IJ), heterocyclic group (including those with substituents), carbon number/~300, e.g. pyridine-2-
R and R may jointly form a carbocyclic ring or a heterocyclic ring. As a substituent for the R%R group, R1
Those having the same meaning as the substituents for the group -R6 can be mentioned.

In the general formulas (I) and (II), R-R preferably represents a hydrogen atom, a halogen atom, an alkyl group, an aryl group, an acylamino group, or an alkylthio group, and more preferably a hydrogen atom, an alkyl group, an acylamino group, or an alkylthio group. represents a group, most preferably a hydrogen atom or an alkyl group.

In the general formula (n), R1R preferably represents a hydrogen atom or an alkyl group, and it is also preferable that R and R together form a carbocyclic ring. More preferably, R7 is a hydrogen atom and R
is a hydrogen atom or an alkyl group, and the most preferred case is when R7 is a hydrogen atom and R is an alkyl group.

Specific examples of the compound represented by the general formula (I) are listed below, but the present invention is not limited thereto.

(1G) The compound of general formula (1) according to the present invention is disclosed in US Pat.
731,74! No., Special Public Shojj-2/.

It can be generally synthesized according to the method described in No. 1446 and the like.

The preferred addition amount is 1 mole of coated silver! xl0-2 mol to 1Xio"-" mol, particularly preferred range is zxio
mole ~/×10 mole.

The addition position in the light-sensitive material is not particularly limited, but preferably a layer containing the silver halide emulsion or a layer adjacent to the silver halide emulsion.

In order to introduce the compound of the general formula [■] used in the present invention into a hydrophilic colloid, it can be dispersed by various methods depending on the type of the compound.

(2) A method in which the compound of the present invention is directly dissolved or dispersed in a hydrophilic colloid layer; (9) A method in which the compound of the present invention is dissolved or dispersed in an aqueous solution or solvent and then used in an emulsion layer or a hydrophilic colloid layer. Suitable solvents, such as methyl alcohol, ethyl alcohol, propyl alcohol, methyl cellosolve, JP-A No. 4 At-27/J, U.S. Patent J, 74T
t, halogenated alcohol, acetone, methyl ethyl ketone, water, pyridine, etc. described in No. 130, or
It can also be added in the form of a solution dissolved in a mixed solvent of these. In this case, various surfactants can also be included.

(2) A method in which a liquid obtained by dissolving the compound of the present invention in an oil, that is, a substantially water-insoluble high-boiling solvent having a boiling point of about /AO0C or higher, is added to a hydrophilic colloid solution for dispersion.

This includes so-called emulsion dispersion, which is a commonly used method.

So-called oil-less dispersion, which does not use high-boiling organic solvents, is also possible.

Also, organic solvents having a boiling point of 300C to about 0C or water-soluble organic solvents, such as lower alkyl acetates such as ethyl acetate and butyl acetate, propio/ethyl acetate,
Secondary butyl alcohol, methyl isobutyl ketone, β-
Ethoxyethyl acetate, methyl cellosolve acetate, and cyclohexanone, methyl ethyl ketone, N
, N-dimethylformamide, dimethyl sulfoxide, methyl cellosolve, acetone, tetrahydrofuran,
Dioxane etc. can be used alone or in combination with the above-mentioned high boiling point organic solvent. At this time, a method of dissolving the compound of general formula CI) in the organic solvent is preferably used.

It is very useful to include a surfactant in either the aqueous phase or the oil phase.

Further, the aqueous phase during dispersion may contain a hydrophilic colloid, but so-called binder-free dispersion, which does not contain a hydrophilic colloid, is also very suitable.

On the other hand, this category of dispersion allows for many variations in the process. For example, regarding the phase, 0/W type (
oil droplets dispersed in an aqueous phase) is often used, but
The phase inversion emulsification described in Yo-/, 2-Els is also important in making the present invention more effective.

Further, after dispersion, a low boiling point organic solvent or an organic solvent having a solubility in water of several cents or more can be removed.

Examples of this method include a vacuum distillation method, a water washing method, and an ultrafiltration method. For example, Tokukai Sho t.

-/II≠37 is useful.

(2) A method in which the compound of the present invention is impregnated into a latex polymer as a polymer latex composition filled with a hydrophilic colloid layer.

Examples of the polymer latex include polyurethane polymers, polymers polymerized from vinyl monomers [suitable vinyl monomers include acrylic esters (methyl acrylate, ethyl acrylate, butyl acrylate, hexyl acrylate, octyl acrylate,
dodecyl acrylate, cricidyl acrylate, etc.),
α-substituted acrylic ester (methyl methacrylate,
butyl methacrylate, octyl methacrylate, glycidyl methacrylate, etc.), acrylamide (butylacrylamide, hexyl acrylamide, etc.), α-substituted acrylamide (butyl methacrylamide, dibutyl methacrylamide, etc.), vinyl esters (vinyl acetate, vinyl butyrate, etc.), Vinyl halides, (vinyl chloride, vinylidene chloride, etc.), vinyl ethers (vinyl methyl ether, vinyl octyl ether, styrene, α-substituted styrene (α-methylstyrene, etc.), m&substituted styrene (hydroxystyrene, (chlorostyrene, methylstyrene, etc.), ethylene, propylene,
Styrene, butadiene, acrylonitrile, etc. can be mentioned. These may be used alone or in combination of two or more, or may be mixed with other vinyl monomers as a minor component. Other vinyl monomers include itaconic acid,
Examples include acrylic acid, methacrylic acid, hydroxyalkyl acrylate, hydroxyalkyl methacrylate, sulfoalkyl acrylate, sulfoalkyl methacrylate, styrene sulfo/acid, and the like. ] etc. can be used.

These filled polymer latexes are
No. 13, Tokukai Shoj/-! Tata ≠ No. 3, same! J-/J7/
J/No., same j≠-325! λ No. 74c-107≠
/ issue, same jj-/JJ Hiro6j issue, same 74-/ri0≠3 issue, same, tG-/riO≠7 issue, same 16-/λtt3o issue,
No. 61-/41903 can be manufactured according to the method described in the No. 61-/41903.

(2) A method of dissolving the compound of the present invention using a surfactant.

Useful surfactants may be oligomers or polymers.

For example, as an example of polymer, JP-A-Sho! j-/, 30J
Examples of oligomers include Demol E and Demol N (both Kao Atlas Co., Ltd.), those described in JP-A-17-101//J, and JP-A-57-AJ.
/2≠ is useful.

Included are methods commonly known as solubilization.

(2) A method of using a polymer instead of a high boiling point solvent in (2) above.This method is described in, for example, U.S. Pat. ≠Described in No. 67.

Also, for example, JP-A-ShojO-/I-Hiro-≠7, U.S. Pat.
Polymer component 31 described in G4, 2J4, etc. is useful. Of course, such polymer dispersions are useful even if the primary compounds to be dispersed vary.

(2) A microcapsule method using a polymer having a carboxyl group or a sulfone lt group in the side chain as described in Japanese Patent Application Laid-Open Publication No. 2003-200212.

■ After mixing a solution of the compound to be dispersed in alkali with a hydrophilic colloid solvent, gradually adjust the pH while stirring.
How to lower the. In this case the polymer is added to the hydrophilic colloidal solvent, either together with the compound of the invention or separately. This method, also called alkaline dispersion, is suitable for dispersing compounds having water-soluble groups, and has the characteristic that it is easy to obtain fine micelle dispersions. It is also useful to use surfactants, organic solvents, etc. in combination.

In addition, in the present invention, as a method for coexisting the compound of general formula (1), for example, JP-A-Sho J/-/RI! 3≠ issue, JP-A-17-17≠Kota, JP-A-40-11143
No. 6, JP-A-1986-/, t/633, JP-A-60-7
Hiroshi 03≠G, JP-A-60-1074442, US Patent 2. lr! The method described in No. 2.7J'λ can be applied.

The present invention can be applied by replacing the compound to be dispersed, such as a coupler, in these prior patents with the compound of general formula (1) of the present invention. Particularly useful is a method in which the polymerization is initiated in the presence of the compound of general formula (1) and the hepatomer.

A suitable dispersing machine for use in the various types of dispersion described above is one that applies a large shearing force or one that applies high-intensity ultrasonic energy. Examples of emulsifying and dispersing machines with strong shearing force include the high-speed mixer Daysilver, homomixer, homoblender, and different types of homogenizers such as cloak/pulley/,
An example is a colloid mill.

When the dispersion is present as particles, the particle size is an important factor; for example, in the case of oil droplets containing couplers, the photographic properties vary greatly depending on the particle size, making the present invention more effective. This is important as one means. The particle size of the dispersion used in the present invention is preferably as small as O1jμ or less, but depending on the compound, it may be advantageous for the overall photographic properties if the pit size is not small, so it can be selected as appropriate.

Factors that determine particle size include the type of emulsifying machine and rotation speed and time, type and usage of surfactant, viscosity of the oil phase or amount of organic solvent, viscosity of the aqueous phase or binder concentration, and the ratio of water to oil phase. The volume ratio, presence or absence of phase inversion, pH, etc. can be freely changed by combining these to select the optimum region.

In a preferred embodiment of the color light-sensitive material of the present invention, a combination of a blue-sensitive emulsion layer, a green-sensitive emulsion layer and a red-sensitive emulsion layer, or a combination of a green-sensitive emulsion layer, a red-sensitive emulsion layer and an infrared-sensitive emulsion layer is used. , or a combination of a blue-sensitive emulsion layer, a red-sensitive emulsion layer, and an infrared light-sensitive emulsion layer, and a yellow DRR compound, a maze/red DRR compound, and a cyan DRR compound in each of the above emulsion layers.
It is composed of a combination of compounds (herein, "infrared light-sensitive emulsion layer" is 700 nm or more, especially 74AOn).
(refers to an emulsion layer that is sensitive to light with a wavelength of m or more).

Films used for wet or thermal development color diffusion transfer.
A typical form of the unit is that an image receiving element and a photosensitive element are laminated on one transparent support, and there is no need to separate the photosensitive element from the receiving element after the transferred image is completed. be. The image receiving element comprises at least one mordant layer, and between the mordant layer and the photosensitive layer or the DRR compound-containing layer,
A white reflective layer containing a solid pigment such as titanium oxide is provided so that the transferred image can be viewed through the transparent support.

A light-shielding layer may be further provided between the white reflective layer and the photosensitive layer in order to complete the development process with light b1.
i If desired, a peeling layer may be provided at an appropriate position in order to make it possible to peel off all or part of the photosensitive element from the receiving image 1m'* (such an embodiment is described, for example, in JP-A-16-A7f).
It is described in Canadian Patent No. 67 Hiro, Or2. ) In another form that does not require peeling, the photosensitive element described above is coated on one transparent support, a white reflective layer I- is coated on top of the photosensitive element, and an image-receiving layer is further coated on top of the transparent support. *Layered.

For a method in which a photosensitive element, a white reflective layer, a peeling layer, and a photosensitive element are laminated on the same support, and the photosensitive element is intentionally peeled off from the image receiving element, US%r1°J, 7JO ，
? It is described in No.lr.

In addition, as described in JP-A-63-Coco-t6≠, an image-receiving layer, a release layer/#, and a photosensitive layer combined with a DRR compound are sequentially provided on a white reflective support to have a neutralizing function. The present invention is also preferable for a two-knit film in which an alkaline processing agent is spread between the transparent cover sheet and the photosensitive layer, and the white reflective support and image receiving layer are peeled off from the photosensitive layer at the release layer after processing. used.

On the other hand, a photosensitive element and an image receiving element are respectively placed on two supports. !
! There are two typical forms in which the base is applied separately: one is a peel-off type, and the other is a peel-off type. To explain these in detail, a preferred embodiment of the peelable film unit has a light-reflecting layer on the back surface of the support, and at least one image-receiving layer coated on the surface thereof. In addition, the photosensitive element is coated on a support having a light-shielding layer, and the surface coated with the photosensitive layer and the surface coated with the mordant layer do not face each other before the end of exposure f, but after the end of exposure (for example, during development) they are exposed to light. (The layer coated surface is tight) It is designed so that it overlaps the image-receiving coated surface. Immediately after the transfer image is completed with the mordant layer, the photosensitive element is peeled off from the image receiving element.

In a preferred embodiment of the peelable film unit, at least one layer of mordant I- is coated on a transparent support, and a photosensitive element is coated on a support having a transparent or light-shielding layer. The surface coated with the photosensitive layer and the surface coated with the mordant layer are stacked facing each other.

All of the above-mentioned forms can be applied to both the color diffusion transfer method and the heat development method, but especially in the case of the former, a container (processing element) containing an alkaline processing liquid and rupturable under pressure is combined. Good too.

In particular, in a peel-free film unit in which an image-receiving element and a photosensitive element are laminated on one support, the processing element is preferably disposed between the photosensitive element and a cover sheet overlaid thereon. In the next embodiment, in which the photosensitive element and the image-receiving element are separately coated on two supports, the processing element is preferably placed between the photosensitive element and the image-receiving element at the latest during development. Depending on the form of the film unit, the processing elements may contain light-blocking agents (carbon black or pH
It is preferable that the material contains a dye whose color changes depending on the color of the material (dye, etc.) and/or a white pigment (such as titanium oxide). Additionally, in color diffusion transfer force type film units, a neutralization timing mechanism consisting of a combination of a neutralization layer and a neutralization tying layer is provided in the cover sheet or on the receiver. Preferably, it is incorporated into the element or into the photosensitive element.

The above film unit is JP-KOKAI No. 441-jjjri No. 7, JP-A-4! t-g JJ/No. 7, same jO-/ 3621
Same issue! Cor/10λ7, same! As described in No. 6-4 Irts Co. No. 2, it is generally processed into a monosheet using a mask material, a rail material, a surplus liquid trap material, etc.

In particular, Re5ea is recommended for easy peeling after treatment.
rch J)isclaure A2 J O,26
It is effective to make a slit as described in the issue (I ye 3). The shape, depth, etc. of the slit are selected depending on the physical properties of the white support used.

The size of the film unit is arbitrary, but in addition to the size of the instant film currently available on the market, a more compact film size or a much larger film size can be used.

In order to take a photograph using the above film unit, it is necessary to form a mirror image of the subject on the film. This requires the use of mirrors.

Regarding this type of camera, U.S. Patent No. J, 4
Known as '4'7, 4t37.

On the other hand, in a heat-developable film unit, a heat-generating layer containing fine metal particles, conductive particles such as carbon black or graphite is provided at appropriate positions on the support, photosensitive element, or image-receiving element. The Joule heat generated at 9 o'clock when electricity is applied to the rounding of diffusion transfer may be utilized.

In the color photosensitive material of the present invention, a photosensitive layer consisting of a silver halide emulsion layer combined with a DRR compound is provided. Its components will be described below.

+1) DRR Compound The DRR compound that functions as a dye image forming substance in the present invention is a non-diffusible compound that releases a diffusible color X (which may also be a dye precursor) in response to silver development. Theory of the Photo
It is described in OGRAPHIC PROCESS' 1st edition.

That is, as a result of development, the dye itself oxidizes and decomposes, releasing a diffusible dye.

Specific examples of this DRR compound are U.S. Patent J, 92r, 3i.
, No. 2, same J, Puri J, No. 431, Monthly.

074, j2P issue, same da, /jλ, l! No. 3, Doujin, θ
11. Ko 2 No. 2, Gessan, No. 013, 312, Gessan, /rit, λ3j No. 2, Gessan No. 7, No. 221, Gessan, 14A
y, ryλ issue, same J, r4'4', 7! / issue, same 3. ≠443. P+LJ issue, same J, 7! / .

pot number, same J, +143,939, same J, $hiroj
, P reference θ issue, same j, Aλr, yzλ issue, same J.

ri10, 41'7ri No., Dokei, /13,7jJ No., Douyu, /4Aλ, tri No.1, Gessan, No. 271.710, Tsukisan, /3ri, No. 372, Dou, iir, Jtr issue, same J
, '72/, ri64c, same'f, /9ri, jjj,
Doujinshi, /Pri, 3! ≠ No., same 4', /31゜ Octopus No. 2,
Douyu, JJt, No. 3.2λ, Douu, /3ri, No. 312,
Japanese Patent Publication No. ShojJ-40736, same! /-104AJ No. 3, same! Hiro-/30/λλ.

same! ! - / No. 10127, No. j Lou / No. 26≠λ, No. j
t-/613/ issue, j7-410≠3, j7-4
! No. 0, same j7-λ073! No., j3-69033, same! Dar/No. 30927, same jt-/1llJII2
No., z'y-ii, 371, etc.

Among the redox cores of the D1tR compound of the present invention, a particularly preferable group is an N-substituted sul7amoyl group (the N-substituent is a group derived from an aromatic hydrocarbon ring or a heterocycle). Mention may be made of the hydrazide group.

Typical groups for Y are illustrated below, but are not limited to these.

-CONHNH SO2.C16' 33 (II) On the other hand, specific examples of diffusible dyes released from DRR compounds are described in the following literature.

Example of yellow dye: US Patent 3. ! No. 7,200, No. 3,30.

No. 722, same μ, 0/J, No. 633, same concern, Kohiro! ,Q
λr issue, Douan, /It, 40ri issue, Oka≠.

/JP, No. 313, No. 4c, No. 91,222, No. ≠,
lgur, Ada No. 7, douu, lhiro, 4san No. 3, same≠, 3
No. 34.322; JP-A-Shoji-ii No. 230, same, t
4-7107#2; Re5earchD1sclo
Sure /7430 (/971) No. 16 Hiroshi 7!
(/P77), JP-A No. 3137, JP-A No. 270717, and JP-A No. A/-26/731.

Example of magenta dye: US Patent 3. No. 3,107 to Hiromu, same j, j Sanhiro.

! ≠! No. 3. ri 3, No. 310, same 3. P3i,i
Kosan No. 3,232,301, 3I ≠, ≠7
No. 6, 3,232.301, Douan, No. 211,102, Douan, Ko! 0.2 Hiro No., Dokei, /172. ．． ri7
No., same≠,, 207,10≠, same≠, 217.2 Octopus; Tokukai Sho! Ko 106.7 Ko 7, same j Ko 1047
λ7, same j3-JJ, A Jr, same! ! -36. l0
No. 4A, same! No. t-73,017, No. 74-71040
Same issue! r! -/J≠ issue, JP-A-61-273! ≠Things listed in λ.

Example of cyan dye: U.S.A., Hirotko, Ri7ko, 3. Takota.

7bu 0, same≠, 0/J, 631, same≠, cotr, j
λ! No. ≠, /7/, No. 220, Dokei.

21/-, 2, ≠ 3j, ≠, l Hiroko, tri 7, 4t, 7Pj, Tata san, ≠, l 7. ! ≠Hiro No., ≠, lμF, 4 Ko 2; British Patent/, 63/.

i, ir issue; Unexamined Japanese Patent Application Shoj Hiro-Tata 4t3/issue, same j2-t
r27, jJ-4712J, j3-7≠JJJ
J, J Hiro-Tata 4!31, J, 4-710t/
No.: European Patent (RPC) No. 33゜037, same j
j , 0 $ 0 ; Re5earch1)isc
losure / 7.6 J o (iri 77), and the same / 6. ≠7yo (7ri77) issue, JP-A-60-9
3≠3 No. 3, JP-A-Sho TS-IIR 3-Ko 3, JP-A-Sho 63
−≠What is described in oisλ issue.

(2) Silver halide emulsion The silver halide emulsion used in the present invention may be a negative emulsion that mainly forms a latent image on the surface of silver halide grains, or
A direct positive emulsion with an internal latent image forming a latent image inside the silver halide grains may also be used.

Internal latent image type direct positive emulsions include, for example, so-called "conversion type" emulsions that are made by taking advantage of the solubility difference of silver halides, and emulsions that are doped with metal ions, chemically sensitized, or both. "Core/shell type" in which at least the photosensitive sites of the coated silver halide inner core grains are covered with a silver halide outer shell.
There is no emulsion, etc., and there is a US patent on this! octopus,
210. same! ,,20&,J/3, British Patent/.

Q10, /lit, U.S. Patent J, 76/, Core 6,
Same 3. RiJ! t, 0/4', same! , 1447, Octopus 7, same, 2. ≠ri7,17! , the same thing! 63.71!
, Same J, j! /,,t&,2,same≠,3ri! ,≠71゜West German patent, 7 pieces, / 011. US patent ≠, ≠
3/, 730, etc.

Further, when using a direct positive emulsion with an internal submerged base, it is necessary to apply a nucleation to the surface by using light after image exposure or by using a nucleating agent.

As a nucleating agent for that purpose, the US Patent Co.,! 6J, 7r
J, hydrazines described in x, try, yta,
US Patent 3. 27.11λ, hydrazide 7, British Patent No. 1.213. rJj,% Kaisho! Ko6ri6/3, U.S. Patent J, t/j, t/! , same 3
,71ri, 4Cyp, same! , 7J4A, 731. Same a,
ori≠, 6i3. A sensitizer having a substituent having a nucleating effect in the dye molecule, as described in Dohiro, //J, Iλλ, etc., and a substituent having a nucleating effect as described in US Pat. Dye, U.S. Patent Publication, θ30. Ri2! , same≠, OJ/
, /27, same≠, λ≠! , 037, Doujin, 2! J-,!
//, same≠, 2tt, 0/J, same≠, λ76.3&≠,
Thiourea-bonded acylhydrazine compounds described in British patents λ, oiλ, ≠≠3, etc., and US patents ≠, or
o, λ70, Douyu, J7F, 7 Hirot, British Patent Co., 0
An acylhydrazine compound having a thioamide ring or a heterotetracyclic group such as triazole or tetrazole bonded as an adsorption group as described in ``//'', 3ri/B, etc. is used.

In the present invention, spectral sensitizing dyes are used in combination with these negative emulsions and internal latent image direct positive emulsions.

For specific examples, please refer to Tokukaisho! Tar 1rozzO,
Same 40-/41033! No. r, Research Disclosure (RD) 170 Kota, US Patent/.

1'll, JOO, 2,071, 2JJ, same.

or9, /JP, same 2. /l! , 331! , same 2゜λ
3i, try, same λ, ri/7. j/bu, same 3゜3! Ko,
117, same 3. Hiroit, pit, same λ.

core! , λ76, same λ, ≠ tri, tyr, same.

try, j4ct, 2,92/, 067, 3°21
2.933, 3.397,060% 3°440, /
Q3, same J! ! 1,010. Same 3゜3j, 10,
3.3t≠, ≠I6, 3゜t2J, II/, J
, 7/r, 4A70. Same da.

0! , 3 Hirorikyo.

(3) Structure of the photosensitive layer In order to reproduce natural colors by the subtractive color method, the above-mentioned dye image-forming substance provides a dye having selective spectral absorption in the same wavelength range as the emulsion spectrally sensitized with the above-mentioned prestige sensitizing dye. A photosensitive layer consisting of at least two in combination with a photosensitive layer is used. The emulsion and the dye image-forming substance may be deposited as separate layers, or
Alternatively, they may be mixed and applied as a single layer. A separate layer is preferable when the dye image-forming material coated has absorption in the spectral sensitivity range of the emulsion with which it is combined.

Further, when the dye image-forming substance is temporarily converted to short wavelength, it is preferable to mix it with an emulsion and apply it as a layer. In this case, by reducing the film thickness of the photosensitive element, it is possible to shorten the image completion time.

Further, the emulsion layer may be composed of a plurality of emulsion layers having different sensitivities, and an arbitrary layer may be provided between the emulsion layer and the dye image forming material layer. For example, JP-A-40-/73! '
A layer containing a nucleating development accelerator described in I/, Japanese Patent Publication No. 1973
It is also possible to increase the sensitivity of the photosensitive element by providing a barrier layer as described in JP-A-6/67 to increase the color image density, or by providing a reflective layer as described in JP-A-Kokai Shobu Ota/J144. .

In a preferred multilayer structure, a blue-sensitive emulsion combination unit, a green-sensitive emulsion combination unit, and a red-sensitive emulsion combination unit are arranged in this order from the exposure side.

Any layer may be provided between each emulsion layer unit, if necessary. In particular, in order to prevent the effects of development of one emulsion layer from having an unfavorable influence on other emulsion layer units, it is preferable to provide an intermediate layer.

When a developer is used in combination with a non-diffusible dye image-forming substance, the intermediate layer preferably contains a non-diffusible reducing agent to prevent diffusion of the oxidized developer. Specifically, non-diffusible hydroquinone, sulfonamide phenol,
Examples include sulfonamide naphthol, and more specifically, JP-A-KojO-Kolko-Miri, JP-Ko-Ko-10-KJt/J, JP-A-Ko-Ko≠Tar106J2, DouyuTarlλ131. U.S. Patent-, 334,327, λ, JtO, 201 λ
, Hiro OJ, 7 co, 11 co, Ori, 6 Hiro 01 co, 73 co, JOO, same λ, 7 r co, 6! ri, the same λ, ri J7,01
6. Same 3. Bu37. JWJ, same J, 700, 1IjJ,
British patent! 17.710° Tokukaisho! 7-Mairi≠7. same! It is described in t-ko lλ visit. Further, regarding those dispersion methods, please refer to Japanese Patent Application Laid-open No. 1986-60. 2JIrJ/, Tokuko Showa 4
0-/If 7r.

In the present invention, an irradiation prevention layer, an isolation layer, a protective layer, etc. are applied as necessary.

Power of the present invention 2 - Supports for photosensitive materials generally include:
Examples include paper and synthetic polymers (films). Specifically, polyethylene terephthalate, polycarbonate, polyvinyl chloride, polystyrene, polypropylene, polyimide, cellulose (for example, triacetyl cellulose)
Alternatively, these films may contain pigments such as titanium oxide, as well as film method synthetic paper made from polypropylene, mixed paper made from synthetic resin pulp such as polyethylene, and natural pulp, Yankee paper, and baryta paper. Paper, coated paper (% = Yast coated paper), metal, cloth, glass, etc. are used.

These can be used alone, or can be used as a support laminated on one or both sides with a synthetic polymer such as polyethylene.

In addition to this, there are also
The supports described on page 1) can be used.

A hydrophilic binder, alumina sol, semiconductive gold R oxide such as tin oxide, carbon black or other antistatic agent may be applied to the surface of these supports.

In the present invention, a light-shielding layer may be provided for the purpose of completely shielding the photosensitive layer from external light during the development process, thereby enabling processing under daylight. Specifically, a layer containing a light shielding agent is coated on the back side of the support or between the emulsion layer and the support, or
Alternatively, a layer containing a light shielding agent may be provided in the support. Although any material having a light blocking function can be used, carbon black is preferably used.

The binder used to apply the light shielding agent may be any binder that can disperse carbon black, and gelatin is preferred.

In the present invention, a release layer may be provided between the emulsion layer combined with the dye image-forming material and the dye image-receiving layer, and the emulsion layer may be peeled off after processing. This release layer must maintain close contact between the image-receiving layer and the emulsion layer in an untreated state, and must be easily peelable after processing. Materials for this purpose include, for example, JP-A Akihiro 7-4237, Ibid. λλ0727,j
Taaλλriyo! ! , Same fellow Tar 4I Otsu! 3 countries patent 3λ
Ko013! , same 4!3jri! l1% Tokukai Sho≠2-133
411 same j4-6! /JJ, same reference j-2 reference 071゜U.S. Patent, 3227! jO, 27. tYI2! t, same day/7115 same≠366227, etc. can be used. One specific example is a water-soluble (or alkali-soluble) cellulose derivative. Examples include droxyethylcellulose, cellulose acetate-7tate, plasticized methylcellulose, ethylcellulose, cellulose nitrate, carboxymethylcellulose, and the like. Other examples include numerous natural polymers such as alginic acid, pectin, gum arabic, and the like. Various modified gelatins, such as acetylated gelatin and heptadated gelatin, can also be used. Further examples include water-soluble synthetic polymers. For example, polyvinyl alcohol, polyacrylate, polymethyl methacrylate, butyl methacrylate, or copolymers thereof.

The release layer may be a single layer or may be composed of multiple l- layers, for example, as disclosed in Japanese Patent Application Laid-open No. 2003-110001-1.
0-4044- etc.

The image receiving layer used in the present invention contains a mordant in a hydrophilic colloid. This may be a single layer or a multilayer structure in which mordants having different mordant powers are applied in layers. Regarding this, please refer to JP-A-Sho t/-, pJ2j! t
/It is described in. As the mordant, a polymer mordant is preferred.

The polymer mordants used in the present invention are polymers containing secondary and tertiary ano groups, polymers having a nitrogen-containing heterocyclic moiety, polymers containing these primary cation groups, etc., and having a molecular weight of J,000 or more. Particularly preferably 10,0
00 or more.

For example, US Patent 2. J Hiro, ja4I-go, same co.

44r4C, 4'jO, same 3. /4cr, o4/ issue,
J, 714. Vinyl pyridine polymers and vinyl pyridinium cationic polymers disclosed in US Pat.
U.S. Patent J, AJj, ARI No., Id.! , 11
ri, oyt issue, same≠, i, zr.

j3r, British Patent/, 277, u! A polymer mordant capable of crosslinking with gelatin, etc., disclosed in Specification No. 3, etc.;
US Patent 3. Risr, yri No. 5, same co, 7λ/, 11λ
Issue, same λ, 7ri r, ot, i issue, JP-A-Sho! ≠－／／!
, No. 2211, same! ≠-／Hiroshi.

! Kota, sameta≠-/λt, o core, samej≠-/1j
, No. 131, same jA-17. J! Aqueous sol type mordant disclosed in No. 2 specification, etc.; U.S. Patent J, tr, o
Water-insoluble mordants disclosed in RE specifications, etc.; U.S. Patent ≠, itr, ri 76, doyu, zoi, r4! o
Reactive mordants capable of covalently bonding with the dyes disclosed in the specifications of US Pat. No. 3,7Q, No. 620, US Pat.
No. 2, cylinder J, 1ift, No. 704, same No. 3. ! 17,
No. 066, No. 3. Core 1. /≠No. 7, same No. 3, 27
1゜l≠ issue, % open゛13-JOJ, 21 issue, same jko/j3121r issue, same ta 3-/ko! Same issue! 3-7O
λHiro No. 413-107. IJj No., British Patent Co., o
t≠, mordants disclosed in Patent No. 102 and the like can be mentioned.

Others, U.S. Patent Co., 471. The mordant described in J/A No. 2°SR Co., No. 114 may also be mentioned.

In the present invention, a system for neutralizing the DH of the alkaline processing liquid can be provided in the cover sheet, the layer adjacent to the image receiving layer, etc. A neutralization system can be achieved by providing a neutralization layer and a neutralization timing layer. The timing layer is disposed between the processing solution and the neutralization layer in a positional relationship such that the alkaline processing solution reaches the neutralization layer via the timing layer, and maintains the high pH for a certain period of time. After the pH is maintained, the pH rapidly decreases (a pH decreasing process called "inverted S-shape"). Preferably, it is characterized in that the pH is below pH/o, s during peeling. The period of maintaining this high pH is controlled by the components, composition, coating amount, etc. of the neutralization timing layer.

Such polymers include ethylenically unsaturated monocarboxylic or dicarboxylic acids (e.g. acrylic acid,
Copolymers in which /ll or more copolymerizable ethylenically unsaturated heptamers are combined with methacrylic acid, itacone rt&), and JP-A-Sho! Polymers such as those described in U.S. Pat.
, 443/issue, Douan, λft, No. 123, Same≠, λo
i, try issue, same feeling.

22ri, sit issue, JP-A-Sho, tj-lλ/Hiro Jt issue, tj-lλ/AAλ/ko issue, same jj-san/≠2θ issue, same j1
-! 'fiJp No. 1, same! Bu-70-isa No. 17
-/No. 1011, J7-/7JI341c, Same! 7
-/7F1447, West German Patent Application Publication (OLS) z,
No. 10,271, European Patent Application Publication EPJ/,
the law of nature! 7A/%Re5earcbDiscl□5ure
A/IQ! Examples include those described in λ and the like. Examples of ethylenically unsaturated monomers include ethylene, propylene, l-butene, inbutene, styrene, chloromethylstyrene, hydroxy)f-styrene, sodium vinylbenzenesulfonate, sodium vinylbenzylsulfonate, N, N, N-)dimethyl. -N-vinylbenzylammonium chloride, N,N-dimethyl-N-benzyl-N-vinylbenzylammonium chloride, α-methylstyrene, vinyltoluene, ≠-vinylpyridine, -mono-hinylhyridine, penzylvinylhyricinium chloride , N-vinyl acetamide, N-
Vinylpyrrolidone, /-vinyl-2-methylidazole, monoethylenically unsaturated esters of fatty acids (e.g. vinyl acetate, allyl acetate), maleic anhydride, esters of ethylenically unsaturated monocarboxylic or dicarboxylic acids (e.g. n -Butyl acrylate, n-hexyl acrylate, hydroxyethyl acrylate, cyanethyl acrylate, N,N-diethylaminoethyl acrylate, methyl methacrylate, n-butyl methacrylate, benzyl methacrylate, hydroxyethyl methacrylate, chloroethyl methacrylate, methoxyethyl methacrylate. ), N,N-diethylaminoethyl methacrylate, N,N,N-)riether-N-methacryloyloxyethylammonium p-toluenesulfoner), N,N-diethyl-N-methyl-N-methacryloyloxyethylammonium I)- ) luenesulfonate, dimethyl itaconate, maleic acid monobenzyl ester), amides of ethylenically unsaturated monocarboxylic or dicarboxylic acids (e.g. acrylamide, N
, N-dimethylacrylamide, N-methylolacrylamide, N-(N,N-dimethylaminopropyl)acrylamide, N,N,N-trimethyl-N-(N-7
the law of nature! Ammonium-p-toluenesulfonate, J-Roylpropyl) Ammonium-p-Toluenesulfonate,
Q Sodium sulfonate, acryloylmorpholyl/, methacrylate, N.

N-dimethyl-N'-acryloylpropanediamine propionate betaine, N,N-dimethyl N/-methacryloylpropane acedate betaine), and the like.

The neutralization timing layer may be a single layer or multiple layers.

In addition, timing layers made of these materials include, for example, U.S. Pat.
z, ri is, ita issue, same 3. OIDA, T72, JP-A-71-7! J137, same! j-/Jr7 Hiroshi! The development inhibitor and/or its precursor disclosed in U.S. Patent μ, ;0/,! It is also possible to incorporate the hydroquinone precursor disclosed in No. 71, other additives useful for photography, or their precursors.

As the acidic substance for the neutralization layer, conventionally known acidic substances can be used, and there are no particular limitations. Preferred acidic substances include pK
A substance containing an acidic group (or a precursor group that provides such an acidic group upon hydrolysis) with an ag or less, more preferably an oleic acid compound as described in U.S. Pat. higher fatty acids such as, polymers of acrylic acid, methacrylic acid or maleic acid and their partial esters or acid anhydrides as disclosed in U.S. Pat. No. 3,362°t/R; 2ri0,
Copolymers of acrylic acid and acrylic esters as disclosed in US Pat. No. 1I,/3F, 31
No. 3 and Resea r ch Disclosure
Examples include latex-type acidic polymers as disclosed in RE A/6/02 (1977).

Others include U.S. Patent No. p, orr, ≠23, and JP-A-Sho! Ko/JJ7J issue, same! J-1023, same! 3
- Hiroj Hiro No. 0, same! ! -44JIILy issue, same! J-1
Acidic substances disclosed in iLJu, etc. can also be mentioned.

Specific examples of acidic polymers include ethylene, vinyl vinegar,
These include copolymers of vinyl hexamers such as vinyl methyl ether and maleic anhydride and their n-dityl esters, copolymers of butyl acrylate and acrylic acid, and cellulose acetate and hydrodiene phthalate.

The polymeric acid can be used in combination with a hydrophilic polymer. Examples of such polymers include polyacrylamide, polymethylpyrrolidone, polyvinyl alcohol (including partially saponified products), carboxymethyl cellulose, hydroxymethyl cellulose, hydroxyethyl cellulose, polymethyl vinyl ether, and the like. Among these, polyvinyl alcohol is preferred.

The amount of polymeric acid applied is closely adjusted to the amount of alkali that is developed on the photosensitive element. The ratio of polymer acid and alkali per unit area is preferably 0 to 0. If the amount of polymer acid is too small, the hue of the transferred dye may change.
It causes staining in the colored background area, and also causes problems such as a change in hue or a decrease in light fastness when it is too thick. More preferred equivalent ratios are i, o-i, i. If the amount of hydrophilic polymer mixed is too large or too small, the quality of the photograph will deteriorate. The weight ratio of hydrophilic polymer to polymer acid is 0. /-10, preferably 0°3 to 3.0.

Additives can be incorporated into the layer having a neutralizing function for various purposes. For example, hardening agents known to those skilled in the art can be added to harden this layer, and polyhydric hydroxyl compounds such as polyethylene glycol, polypropylene glycol, glycerin, etc. can be added to improve the brittleness of the film. In addition, antioxidants, dyes, etc. may be added as necessary.

The processing composition used when wet-processing the color photosensitive material of the present invention is uniformly spread on the photosensitive element after exposure of the photosensitive element, completely shields the photosensitive layer from external light, and at the same time,
The photosensitive layer is developed by the components contained therein. For this purpose, the composition contains an alkali, a thickener, a developing agent, and a light shielding agent as essential components, and furthermore, it prevents the deterioration of a development accelerator, a development inhibitor, and a developing agent for regulating development. Contains a rounded antioxidant, a white pigment to enable previewing of the dye generated in the form of an image from the cover sheet side, etc.

Alkali is sufficient to adjust the pH of the liquid to ~14I-1, and alkali metal hydroxides (e.g., sodium hydroxide, potassium hydroxide, lithium hydroxide), alkali metal phosphates (e.g., phosphorous Among them, potassium hydroxide and sodium hydroxide are preferred.

Thickeners are used to spread the processing solution uniformly and when peeling off the used photosensitive layer together with the cover sheet.
@/ Necessary for maintaining close contact between the cover sheets. For example, an alkali metal salt of polyvinyl alcohol, hydroxyethyl cellulose, or carboxymethyl cellulose is used, and preferably hydroxyethyl cellulose or sodium carboxymethyl cellulose is used.

As the light-shielding agent, any dye or pigment, or a combination thereof, can be used as long as it does not diffuse into the dye image-receiving layer and cause staining, and carbon black is preferably used.

The amount of light-shielding agent added is sufficient to sufficiently shield the photosensitive element being processed from strong external light, and the amount of light-shielding agent added is 30P or more per processing solution/Kf.
Coooy1 is preferably μop~/coop.

As the white pigment, any pigment can be used as long as it does not have a photographic effect. For example, inorganic titanium white pigments as well as hollow polymer beads (e.g. Rohm a
0F-tri (manufactured by ND Hass) can also be used.

The content of white pigment is processing liquid/Kg/F)j09~4/
LooP, preferably 1009-300F.

Preferred developing agents are any that cross-oxidize the dye image-forming material and do not substantially stain when oxidized.

Such developers may be used alone or in combination of two or more, and may also be used in the form of a precursor. These developing agents may be included in appropriate layers of the photosensitive element or may be included in the alkaline processing solution. Specific compounds include amine phenols and pyracyridinones, and among these, pyracyridinones are particularly preferred because they generate less stain.

For example /-phenyl-3-pyrazolidinone, /-p-
1 Lilu, Hiro-dihydroxymethyl-3-pyrazolidinone, t-(J'-methyl-7enyl)-Hiroichi methyl-Hiro-hydroxymethyl-3-birasolidinone, l-phenyl-Hiro-methyl-≠-hydroxymethy Lu-3-pinsiridinone, 1-p-)! Examples include j-Rou≠-methyl-≠-hydroxymethyl-3-bira, silidinone, and the like.

When applied to heat-developable photosensitive materials, these developers are preferably incorporated into the photosensitive materials.

The heat-developable photosensitive material that is an embodiment of the present invention basically consists of a support, a photosensitive silver halide, a binder, and a DRR.
The compound having the compound and the compound of general formula (1) may further contain organic silver salts and other additives as necessary.

Diffusible dye transfer may be performed simultaneously with thermal development, or may be performed continuously or at intervals after thermal development. Thermal development may be carried out in the presence of a very small amount of water.

There are various methods for transferring diffusible dyes to the image-receiving layer, such as transfer using an aqueous solvent such as water, transfer using a high boiling point organic solvent, transfer using a hydrophilic thermal solvent, and diffusion. A method has been proposed in which the dye is transferred to an image receiving layer having a dye-receiving polymer by utilizing the thermal diffusivity or sublimation property of the dye, and the present invention is applicable to any of these methods.

Listed below are documents that specifically describe heat-developable photosensitive materials that can be used in the present invention and how to use them.

U.S. Patent No. Hiroshi, Hiroshi No. 43,072, same No. ≠, Hiroshi 7 $,
No. 167, No. 4', $7f, No. 7 Octopus, No. 100, No. 4', No. 100, No. 4', No. Tar itr hiro 32, same t
, 2-tzoir, same t/-2324A! No., European Patent Publication Coio, Tohλ No., etc.

Example I Image-receiving photosensitive sheets 1 to 2 containing the following emulsions 1 to 2 in the low-sensitivity red-sensitive emulsion layer and the high-sensitivity red-sensitivity emulsion layer were exploded.

Preparation of image-receiving photosensitive sheet ■ A carbon black layer (
Carbon black 3. op/m” gelatin i,!, 11
7m21) and titanium oxide layer (titanium oxide 3.
o 1p/m, Zera f-7/, Op/n%) was applied.

Next, the following coatings were sequentially applied to the opposite side of the light-shielding layer of this support, and the image-receiving photosensitive sheet No. 20 was prepared.

(1) An image-receiving layer containing the following polymeric latex mordant at 3P/m2 and gelatin Jy/m''.

(3) Degree of acetylation z t% cellulose acetate 0. /
a second release layer consisting of f/, 2;

(4) Ethyl acrylate latex /P/
2 m2 gelatin. zp/m Containing layer.

(5) The following cyan dye-releasing redox compound O1≠≠
P/rrL tricyclohexyl phosphate 0.0riy
/m %co, j-t-pentadecylhydroquinone 0.00If/m2, carbon black 0, Oj
91/m and gelate 10. layer containing ry/m.

(2) A first release layer consisting of the following compound θ, /y/m.

20CH3 (6)l￥! titanium chloride λy/m, and gelatin 0
A light reflecting layer containing ゜zy/m''.

(force grain size/, 0 μm silver iodobromide octahedron (iodine 1
mol%) internal latent image type direct positive emulsion (silver o, ijy/m2
) with red-sensitive sensitizing dye o, 2q/m2, upper 2tare 0,4' p/m
2. Add the following nucleating agent (NA) O at 3.0 μy/m and λ-sulfo! -n-pentadecylhydroquinone sodium salt 20~7m
Silver l in the red sensitive layer consisting of! Emulsion ■! The low-sensitivity red-sensitive emulsion layer of the image-receiving light-sensitive sheet ■.

(8) Silver iodobromide octahedral internal latent direct positive emulsion (iodine 1 mol %) with a grain size of 7.4 μl was prepared with a silver content of o, r/r 1%2. N (the same red-sensitive sensitizing dye as 06'#
/ 77N”, gelatin 0, I 97m2.
/i (the same nucleating agent (NA) was applied to the red-sensitive layer consisting of Hiroshi, jμy/m and cosulfo j-n-pentadecylhydroΦnon sodium salt Hiroshio 1#9/rn) with silver/P. A high-sensitivity red-sensitive emulsion layer of a nine-image-receiving photosensitive sheet (■) containing ZP-added emulsion (■).

i9), 2. ! -di-t-pentadecylhydroquinone i, zy/m, polymethyl methacrylate 1,
,． 2y/m” and gelatin o, 7y/m
A color mixing prevention layer containing 2.

a layer containing gelatin o, 3y/n%.

aO the above magenta dye-releasing redox compound 06lz
y/m, tricyclohexyl phosphate 0, /P/r
n2.2. z-di-t-pentadecylhydroquinone 0
．． QOri y/tn and gelatin O6ri y/m
Containing layer.

A light-reflecting layer comprising α titanium oxide/P/FIL” and gelatin O0λjP/m”.

03 Grain size/, 0 μm octahedral internal latent image direct positive silver bromide emulsion (silver amount o, i cop/m2), the following green-sensitive sensitizing dyes o, i ~ 7, 2 gelatin, respectively 0.2! f/m, the same nucleating agent as layer (7) (
NA) /, /1ttp/m2 and J-sulytt-
t-n-ba/tadecylhydroquinone sodium salt 0
．． A low-speed green-sensitive emulsion layer containing 0λ1p/m2.

(14) Octahedral internal latent image type direct positive silver bromide emulsion with a grain size of 1.4 μm (Gin no Dode o, 3zy/m )
, the same 211 green-sensitive sensitizing dyes as in layer 0 were added at 0.2.
2119/m2, same nucleating agent (NA) as layer (7)/, 7
．． ujl/rn2 and cosulfoj-rl-pentadecylhydroquinone sodium salt O0Q≠y/rn
A high-sensitivity green-sensitive emulsion layer containing 2.

Q'9 λ, j-GG pentadecyl hydroquinone o, 117m, polymethyl methacrylate o, ri
Color mixing prevention layer containing p/1m2 and Ze9f70, '7191/rn2.

(Layer containing IQ gelatin o, 3y/m.

a7) Yellow dye-releasing redox compound with the following structure (
o, j3p/m ), tricyclohexyl phosphate (0,13917m ), λ,! - layer containing G.G. pentadecylhydroquinone o, oipy7F7I2) and gelate:y (0,7 f/m2).

and 08 titanium oxide o, 71/rI%2 and gelatin Q.

A light reflecting layer containing iry/rn2.

Internal latent image type direct positive silver bromide emulsion of octahedral grain size, size i, i μm (silver amount: 0.2 Jf/m2), each of the following blue-sensitive sensitizing dyes: 0, /319/rn2 gelatin 0. Here / rrL2, layer (nucleating agent (N) same as force)
A) 2μy/m2. and cosulfo j-n-pentadecylhydroquinone sodium salt 0.0≠jp/m
A low-speed blue-sensitive emulsion layer containing 2.

Grain size/, 7 μm octahedral internal latent image type direct positive silver bromide emulsion (o in amount of a, pλy/m>, layer <1'l
The same as zfl type sensitizing dyes were added to 0. ．． 20～/F/
12, gelatin 70.4' j jF/m2, layer (
A high-sensitivity back-grain emulsion layer containing the same nucleating agent (NA) 3.3 μy/m as in 7) and course sulfo j-n-pentadecylhydroquinone natrilam salt 0.0 μy/m.

υ Add the following ultraviolet absorbers to 4' x /
0-'mol/m2 and gelatin o,! y/m” ultraviolet absorbing layer.

Similarly, an image-receiving photosensitive sheet (2) using emulsion θ and an image-receiving photosensitive sheet (2) using emulsion O were prepared.

Cover Sheet Light/@A cover sheet was prepared by coating in the following order on a polyethylene terephthalate support containing an anti-ibving dye and subbed with gelatin.

(a) Average molecular weight! 7 m2 of togetyl 7-acrylate (molar ratio r:J) copolymer in acrylic, 7 m wide and 1 μm bis(J, J-epoxypropoxy)-zotane (b) 7 m2 of polymer with the following structure. y/, 2 containing neutralization typing agent matting agent and gelatin 0. A protective eel layer containing JP/m2.

Preparation of image-receiving photosensitive sheet ■ Emulsion of layer (7) and layer (8) of image-receiving photosensitive sheet ■ ■
An image-receiving photosensitive sheet (2) was prepared in exactly the same manner except that the same weight of emulsion @ was used.

(C) Layer treatment solution consisting of gelatin/0 7.2 and polymer/0/n%2 having the following structure: Physically fixed film units ① to ① were prepared.

After exposing the film units ① to ② from the cover sheet side through a gray quench, the processing solution was developed to a thickness of 70 μm using a suppression member at λj′C, and development processing was performed. When each unit is peeled off for ≠ minutes, the image transferred to the image-receiving layer can be observed.9. The density of the cyan transferred image at this time was measured, and its maximum density and minimum density were obtained. The results are shown in Table I.

From the results shown in Table 1, each of the image-receiving photosensitive sheets and the cover sheets were placed one on top of the other in a face-to-face relationship, and the processing solution was filled in a bag that could be ruptured under pressure. It can be seen that the maximum density of cyan is high and the minimum density of cyan is low in 9th film unit (unit) B in which the compound (9) of the present invention is used in the red-sensitive layer.

Moreover, in place of the compound (9)K of the present invention, the compound of the present invention (
When 3), (4), (5), (6), and αl were each used in the same molar amounts as in (9), it was possible to obtain substantially the same maximum and minimum concentrations as in Film Unit) B.

Example ■ In Example (Rino's image-receiving photosensitive sheet ■, an emulsion @ containing the compound (9) of the present invention was applied to the high-sensitivity green-sensitive emulsion layer of layer α, and 1 kly of silver and 2 pts of silver were added. (2) was prepared with exactly the same composition as (2).

A film unit E was prepared using the same cover sheet and processing liquid as in Example I.

Exposure and development were carried out under the same conditions as in Example I, and the magenta density transferred to the image-receiving layer was measured to obtain its maximum density and minimum density. The results are shown in Table H.

As can be seen from the results in Table 1 and Table H, film Units) E in which the compound (9) of the present invention was used in the green sensitive layer had a high maximum density and a low minimum density.

Patent applicant: Display of Fuji Photo Film Co., Ltd. case name of invention person who makes corrections Relationship with the incident Procedural amendment Heisei/Year Patent Application No. 11λ color photosensitive material

Claims (1)

[Scope of Claims] A color photosensitive material comprising at least a photosensitive silver halide, a negative dye-releasing redox compound, and a compound represented by the following general formula (I) on a support. (I) ▲There are mathematical formulas, chemical formulas, tables, etc.▼ In the general formula (I), R^1, R^2, R^3, R^4,
R^5 and R^6 are hydrogen atoms, halogen atoms, sulfo groups,
carboxyl group, cyano group, alkyl group, aryl group,
Acylamino group, sulfonamide group, alkoxy group, aryloxy group, alkylthio group, arylthio group, acyl group, acyloxy group, sulfonyl group, carbamoyl group,
It represents an alkoxycarbonyl group or a sulfamoyl group, and R^1 and R^2, R^4 and R^5 may jointly form a carbocycle or a heterocycle. Z represents a single bond or a divalent organic group.