JPH02135445A - Color diffusion transfer photographic film unit - Google Patents

Abstract

PURPOSE:To obtain a color diffusion transfer photographic unit having sufficiently good handleability and permitting processing in a light chamber and providing a picture of high picture quality by incorporating a specified compd. into a processing compsn. for a processing soln. of a neutralizing system in a layer having a neutralizing function. CONSTITUTION:A layer having a neutralizing function is contained in a transparent covering sheet and/or in a photosensitive element, and serves for neutralizing a processing soln. of a neutralizing system. The pH of the neutralizing stage changes along a reverse S shaped curve, and a diffusive hydroquinone type compd. expressed by the general formula [I] is contained in the processing soln. Thus, a film unit having superior handleability permitting processing in a light chamber is obtd., which provides a picture having low minimum density, superior color reproducibility, high sharpness and high picture quality. In the general formula [I], each R1-R3 is an H atom, halogen atom, (substituted)alkyl group, etc., and each can form a ring. Each R1-R4 may be same or different to each other.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to color diffusion transfer photographic film units. More specifically, the present invention relates to a color diffusion transfer photographic film unit that is a peel-off type film unit, which provides high-quality images, and in which both units are highly safe after peeling.

(Prior Art) Conventional color diffusion transfer photographic film units that can be developed in bright light are broadly classified into peel-free types and peel-off types.

The type that does not require peeling is, for example, as described in Tokko Sho≠+-1t3!6 and Ill-33627, which is a one-piece type that is used throughout the entire process before and after exposure and processing. However, there is a limit to the improvement in image quality due to the following reasons. First, surface reflection, internal light absorption, and light scattering (including gold due to additives to prevent light piping) on the support on the viewing side reduce the maximum density of the image, increase the minimum a degree, and This causes sharpness deterioration. Secondly, the white reflective layer used as a background for observing images is difficult to diffuse the dye, so there is a limit to increasing the density of the reflective material or the thickness of the layer. The minimum density of the image increases because the light-shielding layer containing carbon black or the like, which prevents exposure to light, can be seen through. Thirdly, even after image formation, the image quality is deteriorated due to the occurrence of post-transfer stains. Also, if used emulsion layers, pots, cover sheets, etc. remain unremoved,
Another disadvantage is that the resulting print is too thick.

On the other hand, the peel-off type, as described in U.S. Pat. is well known. In this case, since the image is directly observed, thin prints with excellent image quality can be obtained without the image quality deterioration of the above-mentioned peel-free type, but there is an operational inconvenience in overlapping the photosensitive element and the dye image receiving element in the camera. Also, after peeling, the alkaline processing solution becomes sticky and adheres to the surrounding area, which is dangerous and inconvenient to handle. - A method for solving such operational and handling inconveniences is disclosed by the applicant of the present invention, published in Japanese Patent Application Publication No. 2003-320002. No. P has the following requirements: White support: A layer that performs all neutralizing functions: A dye image-receiving layer: The support, the layer that has a neutralizing function, and the dye image-receiving layer are separable from the rest of the element after processing. A release layer: A light-sensitive element having at least seven silver halide emulsion layers in combination with a dye image-forming substance.Two alkaline processing compositions containing a light-blocking agent: a transparent cover sheet, comprising a transparent cover sheet containing the processing composition of the emulsion layers. A film unit is known that has a layer with a light-shielding gold layer on the side opposite to the side on which it is developed.

Furthermore, in connection with this, Japanese Patent Application No. 1983 filed by the applicant of the present invention
- In No. 1/10, a film unit having a neutralizing function is also provided on the transparent cover sheet side.
A film unit in which the process of neutralizing the processing liquid in this neutralization system is an inverted S-shaped pH lowering process is described in No. 0co0/ and Japanese Patent Application No. 3-/20λOO.

(Problems to be Solved by the Invention) In a preferred embodiment of the color diffusion transfer photographic film 2-knit described in Japanese Patent Application No. J-120107, a layer containing a cyan dye image-forming material and There is a problem that the minimum density tends to increase because the distance of the mordant layer to which the dye is transferred and then dyed is short. In a preferred embodiment of a conventional film unit that does not require peeling, a white reflective layer is provided to provide a white background when observing an image, and a white reflective layer is provided to block light on the observation surface side when developing in a bright place.
Due to the installation of the light-shielding layer, there is a thick gelatin layer containing fermented titanium and Chikarazenblack, and the distance between the layer containing the cyan dye image-forming material and the mordant layer is significantly large, and furthermore, the presence of a small violet layer due to the carbon black contained therein is present. The increase in minimum density is suppressed by the adsorption effect of the cyan transfer dye. Furthermore, in a preferred embodiment of the conventional peel-off type film unit, the layer containing the cyan dye image-forming material lI+ is positioned farthest from the exposed surface compared to the layer containing the yellow and magenta dye image-forming materials due to suitability in terms of spectral sensitivity. Since the dye further diffuses through the processing liquid layer, the distance from the mordant layer during processing is significantly large, and an increase in the minimum density is suppressed.

Therefore, in the film unit described in Japanese Patent Application No. Shojj-/-〇-O1, it is extremely important to maintain the minimum cyan density low compared to conventional peel-free type and peel-off type film units. Hot water.

(Objective of the Invention) The object of the present invention is to provide a peelable film unit that is easy to handle, has high image quality (low minimum density,
An object of the present invention is to provide a novel film unit that has excellent color reproducibility and sharpness and can be processed in a bright room.

Another object of the present invention is to provide a film unit in which the image after peeling has a good preservation property and the image unit and the unit to be discarded are highly safe immediately after being peeled off.

Another purpose is to develop film units with high image formation speed.
t-To provide.

Yet another purpose is to provide a release layer at the position of the post-processing release layer.
By peeling it off from the rest of the partial film unit, including the support, reflective layer and dye-receiving layer, it is similar to a so-called conventional print, with no used emulsion layer, bod, cover sheet, etc. attached. We provide complete film units.

(Means for Solving All Problems) The above object has been achieved by the following color diffusion transfer film unit.

The support has a light-shielding function and a light-reflecting layer function on and/or in the support, and at least (a) a dye-receiving layer, (b) a release layer, and (c) a color X image forming layer are formed on the support. A color light-sensitive element comprising, in sequence, at least one silver halide emulsion in combination with a substance, an alkaline processing composition containing a light-blocking agent, and a transparent cover sheet spreading the processing composition between the light-sensitive element and the light-sensitive element. In the diffusion transfer film unit, a layer having a neutralizing function is in the transparent cover sheet and/or in the photosensitive element, and the neutralizing process of the processing liquid in the neutralizing system is an inverted S-shaped pH decreasing process. and the treatment composition contains a diffusible hydroquinone compound represented by the following formula (I) or (n).
-Color diffusion transfer film unit with % characteristics.

However, the layer having the light-reflecting function is on the side opposite to the silver halide emulsion layer with respect to the dye image-receiving layer, and the layer having the metering light function is on the side opposite to the silver halide emulsion layer with respect to the layer having the reflective function. It is located on the side opposite to the silver emulsion layer or between the silver halide emulsion layer and the dye image-receiving layer.

- Formula (1) In the formula, R□, R2, R3, and R4 are each a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group,
Alkyloxy group, alkylthio group, alkenyl group, alkenyloxy group, alkenylthio group, cycloalkyl group, cycloalkyloxy group, cycloalkylthio group,
Aryl group, arylthio group, arylthio group, arylsulfonyl group, acyl group, acylamino group, diacylamino group, acyloxy group, sulfonamido group, alkylamino group, and alkoxycarbonyl group f: Hail. R1 and R2, Ra and R4 can each form a ring.几□, R12, R13, and R+ may be the same or different from each other (, R□, 几2.R3 and 几.

The total number of carbon atoms is less than or equal to t.

General Formula (II) In the formula, R5 represents a substituted or unsubstituted alkyl group, alkylthio group, alkoxy group, aryl group, aryloxy group, arylthio group, or acylamino group. R
6 represents an alkylene group or an acylamino group. n
is an integer from 1 to 3. When n is -23, R5 may be the same or different.

m is/or an integer of O. The total number of carbon atoms in R5 and R is less than or equal to no. M causes cations to tumble.

几, and 几2. The ring formed by R3 and R is preferably a carbocyclic ring (for example, forming a benzene ring).

The inverted S-shaped pH reduction process referred to here means that the high pH of the processing solution is maintained (within 1 unit of pH decrease) from immediately after the processing solution is developed until just before peeling (immediately before the image is completed), and after the image is completed. This is a process in which the pH is rapidly lowered (more than O6 units per 7 minutes) and a safe pH is reached at the time of stripping.

Further, the object is to expose the film unit from the cover sheet side and apply the processing composition containing the compound of formula (1) or (It) to the uppermost layer of the photosensitive element and the cover. Develop between the sheets and form an inverted S shape.
Achieved by a force 2-spreading diffusion transfer imaging method characterized by carrying out a neutralization process that lowers Ik, fc.

A layer having a neutralizing function is arranged in the transparent cover sheet and/or between the support and the dye-receiving layer.

The case where it is arranged in a transparent cover sheet will be explained.

A neutralization system can be achieved by providing a layer having a neutralization function, which sequentially includes a neutralization layer and a neutralization timing layer, on a transparent glass sheet. This timing layer is disposed between the processing solution and the neutralization layer in such a positional relationship that the alkaline processing solution reaches the neutralization layer via the timing layer, and the timing layer is arranged between the processing solution and the neutralization layer in such a manner that the alkaline processing solution reaches the neutralization layer via the timing layer. A process in which pH is maintained for a period of time and then rapidly decreases (“inverted S-shaped”)
(a pH lowering process called pH lowering process). Preferably, it is characterized in that the pH is below pH/0,j when it is peeled off.

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,
Ethylenically unsaturated seven-mer i/type or more combinable copolymers copolymerizable with methacrylic acid, itacone, and polymers such as those described in JP-A No. 0,2 IlttGJ; U.S. Patent No. V, JP7. ≠3
) issue, same μ, -re, za3 issue, same +, 20/,
JLR7, Dohiro.

-Itta! lt issue, JP-A-77-/J/G3r issue, same!
Bu-/Bubu No. 272, same! ! −≠7 Hiro 0, same! ! −
! ≠34I-/No. 5. same! T-1021! - No., same! 7
-1≠/J444C, same j7-/7313≠, same j
7-/7P14'/issue, West German patent application publication (OLS)
Co., Ltd. No. 10,271, European Patent Application Publication EPJ/
PJ-7A/, 1esearchDisclosure
Examples include those described in A/tera et al. Examples of ethylenically unsaturated septamers include ethylene, propylene, l-butene, isobutyne, styrene, chloromethylstyrene, hydroxymethylstyrene, sodium vinylbenzenesulfonate, sodium vinylbenzylsulfonate, N, N, N-). Dimethyl-N-vinylbenzylammonium chloride, N,N-dimethyl-N-benzyl-N-vinylbenzylammonium chloride,
α-methylstyrene, vinyltoluene, govinylpyridine, -monovinylpyridine, benzylvinylpyridinium chloride, N-vinylacetamide, N-vinylpyrrolidone, /-vinyl-comethylimidazole, monoethylenically unsaturated esters of aliphatic acids (e.g. beer acetate % acetic acid 71 J), maleic anhydride, esters of ethylenically unsaturated monocarboxylic or dicarboxylic acids (
For example, n-bunal acrylate, n-hexyl acrylate, hydroxyethyl acrylate, cyanoethyl acrylate, N,N-diethylamine ethyl acrylate, methyl methacrylate, n-butyl methacrylate, benzyl methacrylate, hydroxyethyl methacrylate, chloroethyl methacrylate, methoxyethyl methacrylate. , N,N-diethylaminoethyl methacrylate, N,N,N-triethyl-N-methacryloyloxyethylammonium p-toluenesulfoner)
, N,N-dietherhemethyl-N-methacryloylogythiether ammonium p-toluenesulfonate,
dimethyl itaconate, maleic acid monobenzyl ester), amides of ethylenically unsaturated monocarboxylic or dicarboxylic acids (e.g. acrylamide % N 1N-
Dimethylacrylamide, N-methylolacrylamide, N-(N,N-dimethylaminopropyl)acrylamide, N,N,N-trimethyl-N-(N-acryloylpropyl)ammonium-p-toluenesulfonate, coacrylamitocomethyl Sodium pronotsulfonate, acryloylmorpholine, methacrylamide, NlN-dimethyl-N'-acryloylpropanediamine propionate betaine, N,N-dimethyl-
N'-methacryloylpropanediamine acetate betaine) and the like.

Preferred specific examples of the polymer for the neutralization timing layer are given below, but the invention is not limited thereto. (The copolymerization ratio is a molar ratio) Preferably, the above (1) to (8) are preferred, and (1), (2), (3), and (8) are particularly preferred.

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

Please note that timing layers made of these materials are covered by, for example, U.S. patents U, OO, 0.2P, and West German patent applications ((JLS).
) J, P/j, /j No. 1, same 3. o/4(,47J issue,
Unexamined Japanese Patent Application Shoju-/11137, same j! -/317171
The development inhibitor and/or its precursor disclosed in U.S. Patent No. 1. Kooi, z7r
It is also possible to incorporate the hydroquinone precursor disclosed in the above publication, 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 pKa
A substance containing an acidic group (or a precursor group that provides such an acidic group upon hydrolysis), more preferably a higher fatty acid such as oleic acid as described in U.S. Pat. No. 2,913,404. , U.S. Patent No. 3. J
tJ.

Polymers of acrylic acid, methacrylic acid or maleic acid and their partial esters or acid anhydrides, as disclosed in French Patent No. 20.422; Copolymers of acids and acrylic esters; US Pat.
archDisclosure I6i≦102(/
Examples include latex-type acidic polymers such as those disclosed in 1977).

Others: U.S. Patent No.
-113739, same! J-102J, J3-4A
juO issue, same! Acidic substances disclosed in J-4t7!7, J3-≠3 Goo, etc. can also be mentioned.

Specific examples of acidic polymers include ethylene, vinyl acetate,
These include copolymers of vinyl monomers such as vinyl methyl ether and maleic anhydride and their n-butyl esters, copolymers of butyl acrylate and acrylic acid, cellulose acetate hydrogen phthalate, and the like.

The above-mentioned polymer acid can be used in combination with the hydrophilic polymer. Examples of such polymers include polyacrylamide, polymethylpyrrolidone, polyvinyl alcohol (including partially saponified products), carboxymethylcellulose, hydroxymethylcellulose, hydroxyethylcellulose, polymethylvinyl ether, and the like. Among these, polyvinyl alcohol is preferred.

The amount of polymeric acid applied is controlled by the amount of alkali developed on the photosensitive element. The equivalent ratio of polymer acid to alkali per unit area is preferably O12 to -0O. If the amount of polymeric acid is too small, the hue of the transferred dye may change or staining occurs in the colored area, and if it is too large, problems such as a change in hue or a decrease in light resistance occur. A more preferred equivalent ratio is i,o to 7.3. 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 polymeric acid is o, i~IO1, preferably 0°3~! , 0.

Additives can be incorporated into the neutralizing layer of the present invention for various purposes. For example, hardening agents well known to those skilled in the art can be added to harden this layer, as well as polyhydric hydroxyl compounds such as polyethylene glycol, polypropylene glycol, glycerin, etc. to improve the brittleness of the film. Other antioxidants, as necessary.
It is also possible to add a dye or the like.

Specific examples of the diffusible hydroquinone compounds used in the present invention are listed below, but the present invention is not limited to these compounds.

These compounds (JH H H H Compounds represented by the general formula (1) used in the present invention are known, for example,
Collective (OrganicSynthesis C
o11ective ) Volume 1, page zii (7247)
, Journal of the American Chemical Society
he American Chemical Society
ty) (J, A, C, S,) Volume 1/R,
21 pages C1yto year), Tokuko Showa 3y-p, t/p.

Tokukai Akira! Ko/gut, Ko3! , Tokukai Akira! 3-ta r.

233, etc. Even compounds not described in these documents can be synthesized according to the synthesis methods described in these documents.

It is known to use the diffusible no-hydroquinone compounds of the present invention in color diffusion transfer processes. For example, in the color diffusion transfer method using a dye developer, Br1t/, JJ
Regarding the color diffusion transfer method using a dye-releasing redox compound for ≠, jj-, etc., see Japanese Patent Application Laid-open No. Shoj4-/lj, /
μ3, JP-A-Shojter/Irj, JJ'1 and ](,
It is described in esearchDisclosure magazine 1jet, page 7 (published in July, 2007).

In the present invention, by adopting a process in which the pH decreases in an inverted S-shape and by containing a diffusible no-hydroquinone compound in the processing solution, the image completion time is quick and the safety is improved by hand (touching at 7'C) during peeling. It is possible to obtain a high-quality print in which an increase in the minimum density of cyan is suppressed while having the same characteristics as that of yellow. Compared to the layer containing the magenta dye image-forming material, it exists at the farthest position from the exposed surface, so the distance from the mordant layer during processing is significantly larger, and the increase in minimum density is suppressed, so that the diffusivity as in the present invention is reduced. There is no particular need to use hydroquinone derivatives.The film unit of the present invention has
The minimum density increases as the distance between the layer containing the cyan dye image-forming material and the mordant layer that transfers and dyes the nine dyes in response to high exposure is shortened. A film unit with excellent safety and handling properties and high image quality is achieved for the first time by the present invention.

In the present invention, the amount of the diffusible hydroquinone compound added to the processing solution is about 0.07-. It is 2f. More preferably about 0.02~/? It is.

The processing composition used in the present invention is uniformly spread on the photosensitive element after exposure of the photosensitive element, and is paired with a light-shielding layer provided on the back side of the support or on the opposite side of the photosensitive layer to the processing solution. It completely shields the layer from external light and at the same time develops the photosensitive layer using the components it contains. For this purpose, the composition contains an alkali, a thickener, a light shielding agent, a developer, a development accelerator to control development, a development inhibitor, an antioxidant to prevent deterioration of the developer, etc. contains. A light shielding agent is always included in the composition.

The alkali is sufficient to bring the pH of the liquid to ``i/co~/4 (), and is suitable for alkali metal hydroxides (e.g., sodium hydroxide, potassium hydroxide, lithium hydroxide), alkali metal phosphates (e.g. (potassium phosphate), guanidines, and quaternary amine hydroxides (eg, tetramethylammonium hydroxide), among which potassium hydroxide and sodium hydroxide are preferred.

The thickener is necessary to spread the processing solution uniformly and to maintain close contact between the photosensitive layer and the cover sheet when the used photosensitive layer is peeled off together with the cover sheet. For example, polyvinyl alcohol, hydroxyethylcellulose, alkali metal salts of cal-xymethylcellulose are used, preferably hydroxyethylcellulose,
Sodium carboxymethyl cellulose is used.

Also, U.S. Patent No. JP7. The oxime-bearing polymers described in Tata No. 6 may also be 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. Carbon black is used as a substitute, but combinations of titanium white and dyes are also used. This dye may be a temporary light blocking dye that becomes colorless after a certain period of time of treatment.

A preferred developer is any that cross-oxidizes the dye image-forming material and does not substantially stain when oxidized.

Such developers may be used alone or in combination of two or more, or may 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 aminophenols and pyrazolidinones, and among these, pyrazolidinones are particularly preferred because they cause less staining.

For example /-phenyl-3-pyrazolidinone, /-p −
IJ Rou≠, 4A-dihydroxymethyl-3-pyrazolidinone, /-(j'-methyl-phenyl)-termethyl-≠-hydroxymethyl-3-pyrazolidinone, /-
Examples include phenyl-Hiro-methyl-Hiro-hydroxymethyl-3-pyrazolidinone, /-p-tolyl-Hiro-methyl-butsu-hydroxymethyl-3-pyrazolidinone, and the like.

Each component other than the cover sheet and processing liquid used in the present invention will be sequentially explained below.

A) Support Although a transparent support may be used, a white support is preferable.

The white support as used in the present invention refers to a support that is white at least on the side on which the dye image-receiving layer is coated, and any support can be used as long as it has sufficient whiteness and smoothness. For example, titanium oxide with a particle size of 0, /-jμ,
Polymer films that are whitened by adding white pigments such as barium sulfate or zinc oxide or by forming microvoids by stretching, for example, films made of polyethylene terephthalate, polystyrene, polypropylene, synthetic paper, etc. A paper laminated with polyethylene, polyethylene phthalate, polypropylene, etc. containing titanium white on both sides of the paper is preferably used. What is the thickness of the support? O~3j 01'ms preferably 7
0-Jlopm, more preferably 10-/jOttm. Preferably, a light-shielding layer can also be provided in the support. For example, a support formed by laminating polyethylene containing a light-shielding agent such as Carmage black on the back side of a white support is used. As a raw material for carmen black,
For example, Donnei Voet CarbonBl
ack” Marcel Dekker, Jnc.

Any manufacturing method can be used, such as the channel method, the sanial method, and the furnace method as described in (/7J). The particle size Jl'i of carbon black is not particularly limited, but is preferably 0 to 1 rooh.

The amount of black pigment added as a light-shielding agent can be adjusted according to the sensitivity of the light-sensitive material to be light-shielded, but it depends on the optical immersion level! ~
io8 degree is desirable.

The dye image-receiving layer used in the present invention contains a mordant in a hydrophilic colloid. This may be a single layer, or it may be a layered structure in which mordants having different mordant powers are applied in layers. Regarding this, JP-A-67-Jsarz
It is stated in issue i. As the mordant, a polymer mordant is preferred.

The polymer mordants used in the present invention are polymers containing secondary and tertiary amine groups, polymers having nitrogen-containing heterocyclic moieties, polymers containing these μ-class cation groups, and those having a molecular weight of j, ooo or more, particularly preferably io ,oo
o or more.

For example, US Pat.

prp, μ30, same 3. / Reference 1.06/ issue, same j,
7j4, vinyl pyridine polymers and vinyl pyridinium cationic polymers disclosed in US Pat. US Patent!, 421.tri≠, 3.t!ri, Oriwo, sameg, /21゜631, British Patent/, 277.
Polymer mordants capable of crosslinking with gelatin, etc., disclosed in US Pat. No. 1,713, etc.; US Pat. Risr, Tata! No., same i, yii, rz- No., same! , 791r , 06
No. 3, Tokukai Akira! ≠-1iz, 2r, same ≠-7≠!
! Kota issue, same j≠-/, 24027 issue, same ≠-/jj
Aqueous sol type mordant disclosed in No. rJj, No. J4-/7312, etc.; US Pat. Water-insoluble mordant disclosed in TYR, OTR, etc.; U.S. Patent A
, itt, issue 7, same≠.

, 2oi, a reactive mordant capable of forming a covalent bond with a dye disclosed in the specification of Zhiro O, etc.; furthermore, US Pat.
70? , No. 90, J, 711.16! No., same J
, 644! , 4', r- No., 3. / Reference No. 1.06,
Same J, J! 7. O6bu issue, same J, core/.

l≠No. 7, same J,, 27/, /4! No. I, Tokukai Akira! 3-
No. 30321, same! λ-/jjj Jr., jj-/,
No. 23, No. 33-10-≠, No. 23! 3-7071'Jj
Examples include mordants disclosed in British Patent Nos., Ota, To, Z and the like.

Other U.S. Patent Nos. 47j, J/O, the same.

The mordants described in R♂co, No. 116 can also be mentioned.

C) Peeling layer In the present invention, a peeling layer is provided between the emulsion layer combined with the dye image-forming substance and the dye image-receiving layer, and the emulsion layer is peeled off after processing. Therefore, this release layer must maintain close contact between the image-receiving layer and the emulsion layer in an unprocessed state, and must be easily peelable after processing. The materials for this are
For example, JP-A-77-1237, JP-A-77-1237, jJ-tj/33
No. 19-ko, No. 20727, same JP! ! !
No. 334, Tokuko Shoul Tarke! No., same≠2−μtjJ No.,
Same≠yo-, 2hiro 071, U.S. Patent No. 3.2JOrJr
No. 4! ! ! Pjllr issue, 3227! 10, 7j91, 21, 4 to Hiro 0/7 Hiro, Do Hirojj
12.27, etc., can be used. One specific example is Keralel, a water-soluble (or alkali-soluble) cellulose derivative. flJ,t
Examples include H-hydroxyethylcellulose, cellulose acetate-phthalate, plasticized methylcellulose, ethylcellulose, cellulose nitrate, and carboxymethylcellulose. Other examples of primary polymers include various natural polymers such as alginic acid, pectin, gum arabic, and the like. Various modified gelatins such as acetylated gelatin and phthalated gelatin can also be used. Furthermore, as another example,
Examples include water-soluble synthetic borimani.

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 a plurality of layers.
-40≦≠- etc.

E) Photosensitive Element In the present invention, a photosensitive element comprising a silver halide emulsion layer combined with a dye image-forming material is provided above the release layer. I will talk about its components below.

(1) Dye-image-forming substance The dye-image-forming substance used in the present invention is either a non-diffusible compound that releases a diffusible dye (which may also be a dye precursor) in conjunction with silver development, or it has its own diffusible properties. The photographic process theory “The
Theory of 'I'hePhotogra
phic Process'' WJ Hong edition. All of these compounds can be summarized by the following formula (1).

(DYE)-Y (I) Here, (DYE)
E) represents a dye or its precursor t-, and Y represents a component t- which provides a compound having diffusivity different from the above compound under alkaline conditions. Depending on the function of Y, compounds are roughly divided into negative-type compounds that become diffusible in the silver developed area and positive-type compounds that become diffusible in the undeveloped areas.

Specific examples of negative-type Y include those that oxidize and decompose as a result of development, releasing all of the diffusible dye.

A specific example of Y is given in U.S. Patent No. 3. octopus? , No. 37-, 3.
Tata J, No. 631, II, No. 076.129, I
I, /1.2. /13, same≠, ozz, t21, same IA, 013. J/2 issue, same II, /91゜231,
Same ≠, /7ri, -27, same l, /≠ri, 192, 3, r4Au, 71J-, 3゜4tμ3.
Rihiro No. 3, same, 3,7J/, 4AO No. 6, Oka 3, μμ3
, 23P No., Same j, 4A4Aj, P No. 0, Same! , 421. P12, same! , 910.1479, same da, /rJ, 7JrJ, same≠, l≠ko, tri1, sameμ, core 1.7jO, samehiro, /3ri.

37ri issue, same≠, ko/l, 3 otsu wo issue, same 3. San-no, Ribu≠ issue, same da, / Tata, JJj issue, same≠.

/ Tata, 3! No. 3, No. 33-, No. P-2, No. ≠,
336. ! -- issue, same number, /3 issue, it issue, Tokukai Sho!
J-rOm number, same j/-10g3≠3, same jμ-/3
0/J- issue, 13-/10r27, 74-/, 2
4 gou issue, same jj-/G/J/ issue, same j7-gu 04tj
No., same j7-oto jO, same j7-ko073! Same issue! 3
-62033, same! ≠-/389.27, same rj-
/G≠3Hiro- No., j7-//ri No. 3441, etc.

Among Y of the negative dye-releasing redox compound, a particularly preferred group is an N-substituted sulfamoyl group (the N-substituent is a group derived from an aromatic hydrocarbon ring or a petero ring). Representative funds of this Y are illustrated below, but are not limited to these.

H N) IS (J2- For positive compounds, Angewante Hemi International Edition English (Ang
ev, Chem, In5t, Ed, Engl.).

It is described in koichi, liri/(/ri1r-).

A specific example is a compound (dye developer) that is initially diffusible under alkaline conditions but becomes non-diffusible after being oxidized during development. Typical examples of Y that are effective for this type of compound include those listed in US Pat.

Another type of It is one that releases a diffusible dye by self-ring closure under alkaline conditions, but substantially ceases to release the dye when oxidized during development. A specific example of Y having such an i function is described in U.S. Patent No. 3. 10゜Hiro No. 72, U.S. Patent 3. Hiro-7,
Refer to ri, Dohiro.

/ Tata, 3! J issue, JP-A-13-490 Jj issue, same! It is described in Hiro-/30227.

Another type is one that does not itself release any pigment, but
Some release dyes when reduced.

This type of compound is used in combination with an electron donor,
The silver can be oxidized into an image by development and then release a diffusible dye into the image by reaction with the remaining electron donor. Regarding atomic groups having such functions, for example, US Patent No. 113.7JJ, Dokei, / Ko-1
tri No. 7, same≠.

, 271.7r0, same≠, /3ri, 37ri, same 11
．． 2/I, No. 361, No. 4 (, J41.. No. 241, No. 3!♂,! Jj, No. 101.27, No. 101.27, No. 30 Turf, No. 3!≠-/No. 30 Turf, No. 3! 6-/Otohiro 3-Hiro-No.
Publication branch root 17-j/Tata issue, European patent publication, 2207≠
It is stated in No. 68, etc.

Specific examples are shown below, but the invention is not limited to these.

When this type of compound is used, it is a diffusion-resistant electron donor compound (known as an ED compound)! or its precursor in combination.

Examples of ED compounds include U.S. Pat. No. 4A, JtJ
, Jri No. 3, same l, 27t, No. 710, Tokukai Sho! B-
/JI7J≦ issue etc.

As specific examples of other types of dye image-forming materials, the following may also be used.

C16H33 (wherein (DYE) represents a dye or a precursor thereof as defined above and as defined below). , No. 1llr and Dohiro, Orit, No. 713.

On the other hand, specific examples of the dye represented by the general formula (DYE) are described in the following literature.

Example of yellow dye: US Patent 3. No. 27,200, No. 3,30, 72
No. 2, Dodo +1,0/J, No. 633, Dohiro.

2 Hiroz, oar issue, Dohiro, ijt, BuOri issue, same≠, /
3ri, JtJ, Dohiro, NoPjl Tatako, Yogu, /I
lt♂l≦μ/issue, Dohiro, /μ? , 6 Hiro No. 3, Dohiro, 3
3 Otsu, No. 3--, JP-A-Shota/-7/≠No. 230, No. 14
-7IQ7- issue, Re5earch Disclosure
e/7 t J O (/ri71) issue, same/A! 77
(/ri77).

Example of magenta dye: US Patent 3. HirojJ, No. 107, same 3. j≠Hiro, jHiroj, same 3. ri J, 2, 3 to issue, 3゜93/,
/! No. 4Z, No. J, No. 301, No. 3, P! Hiroshi, ≠76, 12-1127, ≠, -! ! , 10
No. 2, Dohiro, 210. Kohiro No., same μ, / daichi, luri 7
No., same gu, ko07. IO Reference, Dohiro, No. 217.222, JP-A No. 12-706727, Same! 3-λ3621, same j! -3 trou, No. 14-7IQ7-, No. 171O6O, and No. tj-/J.

Examples of cyan dyes: U.S. Pat. Tata, No. 760, Dohiro, 0/J, Bu3! No., Dohiro.

all, No. 626, same≠, /7/, No. 220, Dohiro, -
Koichi, Da 3! No., same≠, / Hiroko, ruri No. 1, same≠, /9
! ,? Tag number, Dohiro, / Gua,! μg issue, Dohiro, /≠f
f, No. 44-, for British Patent 7. ! ri, iJr issue, Tokukaisho! ≠-Ta P≠ No. 37, No. 12-1127, No. 12-1127, Same! !
-4'7F, 2j, same! 3-/French No. 33-3, same j4
T-Tata 4T3/No., J6-7No.0LS1, European Patent (Publication) No. 13037, Same! 30 @ No. 0, Resea
rchDisclosure / 7tJO(/ri7
．． r) and those described in the same /1≠7j (/ri77).

(2) Silver halide emulsion The silver halide emulsion used in the present invention may be a negative emulsion that forms a latent image entirely on the bottom side of the silver halide grains, or
It may be an internal latent image type direct positive emulsion that forms a latent image inside the silver halide grains.

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/7L type" in which at least the photosensitive site of the coated silver halide inner core grain is covered with a silver halide outer shell.
There are emulsions, etc., which are described in U.S. Pat. JlJ No. 3゜76/
, J7J No. 3. 31, 0/≠ issue, 3, Hiromu 7.
Ri No. 27, same, Gu No. 27,171, same! ≦J
, No. 711, J, 11/, JJ No., I, 3
96,4471, 4A, 143/730, West German Patent No. 1, 721,101, British Patent No. 1,027.
/4A6, etc.

Second, when using an internal latent image type direct positive emulsion, it is necessary to apply fog nuclei six times using light or a nucleating agent after deep exposure.

The next nucleating agent is U.S. Patent No. 2. j4j,
No. 7111, same, rrr, rjλ, and the following hydrazines, U.S. Patent No. J, 127. j! Hydrazides and hydrazones described in No. -, British Patent Nos. 1 and 21
No. 3,131, Tokukai Sho! Court No. 73, U.S. Patent No. J, I/j, U.S. Patent No. 3,7/ri, Hiromu μ, U.S. Patent No. 3
．． 73 Hiro, 73r issue, same μ, Ori μ, tlj issue, same 'I
,//! , /--, etc., subheterocyclic dacryl salt compounds described in U.S. Pat. Patent No. 1, 030. Octopus J, Dohiro, 031゜7.27, Dodo, 241! , No. 037, same da, -! ! ,! //No. 11. ．． 2tA, No. 073, same group.

Thiourea-bonded acylhydrazine compounds described in -7 Otsu, JJ Gu No. 1, British Patent No. 1, (7/J, Hirogu No. 3, etc.), and U.S. Patent No. 1, Oro, Core No. 0, I
I, 271,741Lr, British Patent No. 2°0//, 3
Thioamide rings and triazoles described in PlB etc.,
An acylhydrazine compound bonded as a heterocyclic group such as tetrazole as an adsorption group is used.

In the present invention, a spectral sensitizing dye is used in combination with these negative emulsions and internal latent image type direct positive emulsions.

For specific examples, see JP-A No. 1 RozrO,
Same A (7-/lIO, 3J! issue, Re5earch Di
sclosure / 70,? No. 7, U.S. Patent No. 7
．． ! ! j, No. 300, same, 07&', No. 233, same.

or, /2, same, /61,331, same, 2.
23/, tj♂ issue, same, 2/7. Yo No. 74, same 3.
3yo, t! No. 7, same 3. da//, ri/, same, -
Ta j, -7 Otsu No., same, 4tri, ari No. 1, same, tr? ,! Daj No., same, ter/.

No. 067, J, Jr. 2, FJJ No. 3, 32
7.060, J, Jbuo, io3, 3゜331
．． No. 010, same J! ! No. 2,610, 3. Jrl
A, 'AIt issue, same J, 423.111, same! ,7
/r,≠70, same≠, 021. It is written in J Geta issue etc.

(3) Structure of the light-sensitive element In order to reproduce natural colors by the subtractive color method, the above-mentioned spectral sensitizing dye is used to form a dye image that provides a dye that is spectrally sensitized and has selective spectral absorption in the same wavelength range as the pore agent. A photosensitive layer consisting of at least two combinations of substances is used. The emulsion and the dye image-forming substance may be coated as separate layers, or
ft may be mixed and coated as a single layer. A separate layer is preferred when the dye image-forming material is applied and has absorption in the spectral sensitivity range of the pore agent in combination with it.

The perforator layer may be composed of a plurality of emulsion layers having different sensitivities, and any layer may be provided between the perforator layer and the dye image-forming material layer. For example, the layer containing the nucleating development accelerator described in JP-A-2006-100000-/737;
It is also possible to increase the color image density by providing a partition wall N as described in Japanese Patent Application Laid-Open No. 2003-120003, or by providing a reflective layer as described in Japanese Patent Application Laid-Open No. 2003-120002.

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, it is preferable to provide an intermediate layer in order to prevent the effects of development of one emulsion layer from affecting other emulsion layer units and thereby prevent undesirable effects.

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 the oxidized form of the developer from diffusing. Specific examples include non-diffusible hydroquinone, sulfonamide phenol, sulfonamide naphthol, and more specifically, the non-diffusible hydroquinone, sulfonamide phenol, and sulfonamide naphthol. 2/j! No. 10-231
No. 13, Japanese Patent Application Publication No. Sho ≠ Tar 1ot3 Kota, same, l/l Tar/λ 535, U.S. Patent No. λ, 33≦, 327, same.

3bu0. -No. 20, same, 3! , No. 72/, same, co.
! 4L≠, ≦Reference θ, same, 73, 300, same,
No. 71.2.4j, same, No. 237,016, same J,
637. J23 issue, same! , 700. l/-j3, British Patent No. 137,710, JP-A-Sho! 7--l Rihiro No. 7,
The same is described in t-1/-μ2, etc. These dispersion methods are described in Japanese Patent Application Laid-Open No. 6O-2JrrJ1 and Japanese Patent Publication No. 60-/♂-7J.

Special public Akira! When using a compound that releases a diffusible dye due to silver ions as described in No. 7!74, it is preferable to include a compound that captures silver ions in the intermediate layer.

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

The film unit of the present invention is
No., JP-A-411-1Lt3317, to-/jJ
Bu-r issue, same jJ-/10J7 issue, same! As described in the t-ttrt Kota issue, mask materials, rail materials,
Processed into a monosheet using surplus liquid trapping material.

In particular, in order to make it easy to peel off after treatment, Re5ea
rch Di 5 closure A+2j O+24
It is effective to make a slit like the one described in the issue (/r3). 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 sizes of instant films currently available on the market, more connosect film sizes and larger film sizes can be used.

In order to take a photograph using the film unit of the present invention, it is necessary to form a mirror image of the subject on the film. For this purpose it is necessary to use mirrors.

Regarding this type of camera, US Patent No. 3. ≠
≠7. ≠ Known for No. 37.

(Example) Examples are shown below, but the present invention is not limited thereto.

Example 1 Image-receiving photosensitive sheet A carbon black layer (a carbon black layer (
Carbon black 3. or7m2 gelatin≠, jt/m
f) and titanium oxide layer (titanium oxide J, O9/m2
, gelatin/, 0? /m) was completely coated.

Next, the following layers were sequentially coated on the opposite side of the light-shielding layer of this support to prepare a damaged photosensitive sheet (1).

(1) Add the following polymer latex mordant to J? / m
2 and gelatin 3t/m.

(2) A seventh release layer consisting of the following compound o, /l/m2.

(3) Acetylation degree j/chronic cellulose acetate o, it/m
The third release layer consists of 2.

(4) Ethyl acrylate latex f7t/m2
Gelatin -,j? / m 2 containing layer.

(5) The following cyan dye-releasing redox compound 0゜Hiro≠
v/m tricyclohexyl phosphate o, 05P
9/m 2. j-di-t-pentadecylhydroquinone o,oory/m car'black o,os
y7m2 and gelatin O1♂? / m2 containing layer.

(6) Titanium oxide, 297m2, and gelatin O1!
2/m2.

(7) Grain size/, 0 μm octahedral internal latent image type direct positive silver bromide emulsion (silver amount 0.1617 m), red-sensitive sensitizing dye, gelatin O1 Hiromi V/ms The following nucleating agent ( NA)
/, /μf/m, and COASLEHO! - Rho is metadecylhydroquinone sodium salt o, o, 2t7
A low-speed red-sensitive emulsion layer containing m.

NA Sensitivity Red-sensitive emulsion layer.

(9)2. j-Gt- is tadecylnohydroquinone i, it/m", polymethyl methacrylatene, 2?
/m2 and gelatin 0,7? / m” color mixture prevention layer.

Layer containing QO gelatin 0, j t / m 2'ff.

αW The following magenta dye-releasing redox compound O0/
jt/m2 tricyclohexyl phosphate 0.19
7m J,! - di-t-pentadecylhydride a quinone 0,00 Yt/m and gelatin O0
layer containing f/m2.

(8) Octahedral internal latent image type direct positive silver bromide emulsion with grain size/1 μm (# amount 0.197 m), red-sensitive sensitizing dye, gelatin 0.1'f/m, layer (7) The same nucleating agent (NA) j, 0 μf/m and −1 sulfo j
-n-<High QarR titanium containing metadecylhydroquinone sodium salt 0.04tf/m/? /m2 and gelatin □, -Jrf1m.

(To) Grain size/, 0 μm octahedral internal latent image type direct positive silver bromide emulsion (amount of @ o, i-ta/m2), green-sensitive sensitizing dye, gelatin o, Jjf/m, layer A low-sensitivity green-sensitive emulsion layer containing the same nucleating agent (NA) / , /ltt/m2 as in (7) / !

04 Grain size/1 μm octahedral internal latent image type direct positive silver bromide emulsion (silver amount o, 3197 m2), green-sensitive sensitizing dye, gelatin 0.7 t/m2, same nucleation as layer (7) agent (NA)/, 7≠j7m2 and 11 sulfoj-
n--<ntadecylhydroquinone sodium salt 0
, 041 fl/m2.

QQ-,t-G-hantadecylhydroquinone o,ry7m Polymethyl methacrylate o,r
y7m and gelatin 0, F! ? / m
A color mixing prevention layer containing 2.

(To) Gelatin 0. layer containing jf/mf.

αη Yellow dye-releasing redox compound with the following structure (
o, j3y 7m),) Lithic hexyl phosphate (o, 13f/m), -2! -G-t-
Hantadecyl hydroquinone 0.0/II? /m2) and a layer containing gelatin (0,7t/m2).

(2) Titanium oxide 0.7t/m2 and gelatin O0/
If1m Light reflective layer containing gold.

00 octahedral internal latent image type direct positive silver bromide emulsion with grain size /, /μm (θ in silver amount, cojf/m2), blue-sensitive sensitizing dye, gelatin 0.4tV/m2, layer (7 ), a low-speed blue-sensitive emulsion layer containing the same nucleating agent (NA) -μf/m, and -1-sulfo-t-n-pentadecylhydroquinone sodium salt 0.0≠j f/m2.

Kan, octahedral internal latent image type direct positive silver bromide emulsion with a grain size of 7.7 μm (silver amount O, Gu f/fn 2), blue-sensitive sensitizing dye, gelatin 0.4 tjf/m2, layer (7 ) same nucleating agent (NA) J, Jμf/ff12, and --
Sulfo, tn-d ntadecylhydroquinone sodium salt 0.0.2! Highly sensitive blue-sensitive emulsion layer containing t/m f.

Qll The following ultraviolet absorbers are each
UV absorbing layer containing 'mol/m2 and gelatin 0.197m t-.

' l -O (a) Protective layer containing a matting agent and 0.197 m2t of gelatin.

Next, coating was carried out in the following order on a polyethylene terephthalate support containing a light piping prevention dye and undercoated with gelatin to prepare a cover sheet (21).

(a) Average molecular weight! Ten thousand acrylic acid-butyl acrylate (molar ratio, r: co) copolymer 1 (io, ut7m
2 and/, ≠-bis(-13-epoxypropoquine)
- Neutralization layer containing 0.197 m t" of butane.

(b) A neutralization timing layer containing uf/m2 of the exemplary copolymer (1).

(c) Adhesion reinforcing layer made of gelatin/Of/m2.

The above-mentioned photosensitive sheet and cover sheet were stacked face-to-face, and exemplified compound (2); t-butylhydroquinone was added as a diffusible hydroquinone having the following composition into a pressure-rupturable bag. A photographic film unit of the present invention was prepared by fixing the two pieces together integrally.

Processing liquid: ■ Furthermore, t-buternohydroquinone in the processing liquid 0°079
f Film units ■ and ■ of the present invention that are the same as film unit ■ except for the following changes.

■Created.

Sample ■: Exemplary compound (1) 0. IO? (This treatment solution ■) Sample ◎: Exemplary compound (3) 0. /3? (This treatment solution ■) Sample ■: Exemplary compound (9) 0. JJf (This processing solution @) Next, as a processing solution to be used for the comparison sample, a processing solution that does not contain any compounds in the hydride mouth, which is obtained by removing t-butylhydroquinone from the processing solution of the film unit ■ (this processing solution is referred to as ■). ) was prepared, and a film unit (2) was made which was the same as the film unit except that the processing liquid was changed from (2) to (2).

As a processing solution to be used for another comparison sample, I prepared a processing solution ◎ with the following composition, changed it to this processing solution, and then prepared a film unit ◎.

Treatment liquid ■: For treatment liquid ■, /-phenyl-! - Processing solution with the same formulation as ■, except that mercaptotetrazole 00 JAW was added Next, cover sheet used for comparison sample: [Phase]
A film unit θ was prepared which was the same as the film unit except that the neutralization timing R(b) + neutralization was changed to the following (b') which was not inverted S-shaped.

(b') Degree of acetylation! ! Cellulose acetate, methyl vinyl ether and maleic anhydride (molar ratio/near)
Methyl half ester txt ratio of copolymer:! Neutralization timing layer containing 7f/m2 at a rate of 7f/m2.

Next, create a film unit O that is the same as film unit ■, except that the neutralization timing layer was changed to (b') below and the treatment liquid was changed to treatment liquid ■ that does not contain a hydroquinone compound. .

-10, For the purpose of comparing the film unit of the present invention with a conventional peelable film unit, in the image-receiving photosensitive sheet (iv) of the present invention, (1) an image-receiving layer, (2) a first peeling layer,
and (3) the first peeling layer is removed, and the photosensitive sheet (■) and the image-receiving photosensitive sheet of the present invention are placed on the support, the neutralizing layer in the cover sheet, the neutralizing timing layer in the comparative cover sheet (■), and the image-receiving photosensitive sheet. (1) image-receiving layer in the sheet ■): Comparative film unit ■ prepared by @a-, which was combined with the processing liquid ■ used in the present invention, and the processing liquid ■ from which the hydroquinone was removed. A combined comparative film unit e was prepared and then.

For the above-mentioned film units (■ to ■) of the present invention and comparative films (■ to G), after exposing the entire gray wedge from the cover sheet side, on the other hand, in the case of the conventional peel-off type film unit, the photosensitive sheet After exposing a different surface of
The processing solution was developed to a thickness of t-70 .mu.m using a suppression member at s''C and subjected to in-situ processing.When each sample was peeled off at Hiro's, it was transferred to the image-receiving layer and the next image could be observed.

The density of the cyan transferred image at this time was measured, and its maximum density and minimum density were obtained. This is shown in 6/.

As shown in Ebisu/, the film units ■ to ■ of the present invention have a minimum cyan concentration compared to Φ where the treatment composition does not contain a diffusible hydroquinone compound or θ where the cover sheet is not inverted S-shaped neutralization. is low.

Also, in order to lower the cyan Dmin, /-
Phenyl! - When mercaptotetrazole is contained, although the minimum cyanide concentration decreases, at the same time the maximum cyanide concentration cannot be maintained high, resulting in a significant decrease in concentration.

It can be seen that only when the cover sheet has an inverted S-shape and the processing composition contains diffusible hydroquinone can a print with a non-sticky processing solution, excellent handling properties, and a low minimum cyan density be obtained. Furthermore, although examples of conventional peel-off types are shown in e and θ, there was a risk that the processing composition remained on the surface of the photosensitive sheet 1 after peeling, resulting in stickiness and adhesion to the skin or clothing.

Example 2 In the photosensitive sheet of Example /, layer (12) is 7.3 times layer (15) /, 3 times layer (17) is 7.3 times layer (18) /, 5 times layer (21 ) is /, the 5x layer (23) is /, and the 5x layer (24) is 7.7 times the coating amount, but the image-receiving photosensitive sheet of Example / [phase]
It was created.

Next, an image-receiving photosensitive sheet (2) was prepared which was identical to the image-receiving photosensitive sheet [phase] except that the following layers were sequentially applied between the support and the mordant layer.

(1) Polyacrylic acid-,017m Polyvinyl alcohol-0oy7m, and/, ≠-bis(,2
,j-epoxypropoquine)-phthane 0.02f/m
t-Containing neutralization layer (2) degree of acetylation! A timing layer containing j% of cellulose acetate and methyl half ester of methyl vinyl ether and anhydrous maleic rR (molar ratio /:/) copolymer in a weight ratio of 6 f / 7 M2.

(3) Hydroxyethyl methacrylate fO, lAf
/m Contains an adhesion reinforcing layer.

Cover sheet used in this example: ■ The following polymer latex mordant '41-/ is applied on the cover sheet of Example 1.
, o? A sheet coated with a capture mordant layer containing O17m2 and gelatin/m2 was prepared.

α When the above-mentioned image-receiving photosensitive sheet (Or), the above-mentioned cover sheet (2), and the processing solution (2) of Example/2 were processed in the same manner as in Example//, the results shown in Table - were obtained. In addition, after exposing the entire color wedge to light, a similar process is performed to obtain prints with good sharpness and excellent color reproducibility.

Example 3 The following adhesive release paper was laminated on the back side of the image-receiving photosensitive sheet [phase] of Example -.

Release Paper The release sheet used was polyethylene terephthalate treated with a silicone release agent that was tested to have no harmful photographic effects.

This sheet was coated with an adhesive having the composition shown below to a thickness of about 1 μm to obtain adhesive-coated release paper.

Adhesive: emulsion polymer of coetherhexyl 27 wt parts Titanium oxide 27 wt parts The thus obtained image-receiving photosensitive sheet with release paper and the cover sheet of Example -■
An integrated film unit shown in FIG. 7 was prepared by combining the bond containing the treatment solution (1) and the treatment solution (1) of Example//. The units shown in Figures 1 and 3 were created in the same manner.

Discontinuous perforations were made in the support on the side to which the treatment liquid bond was attached as described in JP-A-74-47rjtO.

After exposing the entire cover sheet to this film unit set, the film unit was passed between a pair of rollers to uniformly spread the processing liquid in the processing bond between the photosensitive element and the cover sheet.

(Effect of the invention) The structure of the claims provides excellent handling properties, high image quality, especially low minimum density (especially minimum density in the color material layer located close to the image-receiving layer), and color reproducibility. A diffused color image with excellent sharpness and sharpness can be obtained.

After 1 hour of processing, cut the part E by strongly bending it and peel off the cover sheet. Regardless of the peeling time, all unnecessary parts such as layers above the first peeling layer and used adhesive are peeled off together with the cover sheet and processing solution, and a high-quality color print is obtained. Next, the release paper on the back of the print was peeled off, and the print could be easily attached to the intended mount.

[Brief explanation of the drawing]

Figure 1 shows the size of the photographic film unit, where the unit of numerical value is mm, A is the screen part, B is the rail material part, C is the processing liquid pot part, D is the liquid reservoir part, and E is the perforation. Was. Figures - and 3 show the size of the photographic film unit, the unit of numerical value is mm, AFi screen part, B the rail material part, C the processing liquid pot part, D the liquid reservoir part, and E the sewing machine. Eyes and notches shown. Figure 1 Figure 2 Patent applicant Fuji Photo Film Co., Ltd. Procedural amendment 1゜2゜3゜

Claims (1)

[Scope of Claims] The support has a light-shielding function and a light-reflecting layer function on and/or in the support, and at least (a) a dye image-receiving layer, (b) a release layer, and (c) a dye image-receiving layer; ) a photosensitive element having sequentially at least one silver halide emulsion in combination with a dye image-forming material, an alkaline processing composition containing a light-blocking agent, and a transparent cover sheet distributing the processing composition between the photosensitive element; In a color diffusion transfer film unit consisting of
A layer having a neutralizing function is provided in the transparent cover sheet and/or the photosensitive element, and the neutralization process of the processing solution in the neutralization system is an inverted S-shaped pH lowering process, and the above processing composition A color diffusion transfer film unit containing a diffusible hydroquinone compound represented by the following general formula (I) or (II). However, the layer having the light-reflecting function is on the side opposite to the silver halide emulsion layer with respect to the dye image-receiving layer, and the layer having the light-shielding function is on the side opposite to the silver halide emulsion layer with respect to the layer having the reflection function. on the opposite side of the layer or between the silver halide emulsion layer and the dye-receiving layer. General formula (I) ▲There are mathematical formulas, chemical formulas, tables, etc.▼ In the formula, R_1, R_2, R_3, and R_4 are each a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group, an alkyloxy group, an alkylthio group, Alkenyl group, alkenyloxy group, alkenylthio group, cycloalkyl group, cycloalkyloxy group, cycloalkylthio group, aryl group, aryloxy group, arylthio group, arylsulfonyl group, acyl group, acylamino group, diacylamino group, acyloxy group , represents a sulfonamide group, an alkylamino group, or an alkoxycarbonyl group. R_1 and R_2, R_3 and R_4 can each form a ring. R_1, R_2, R_3, and R_4 may be the same or different, and the total number of carbon atoms in R_1, R_2, R_3, and R_4 is 8 or less. General Formula (II) ▲ Numerical formulas, chemical formulas, tables, etc. are available▼ In the formula, R_5 represents a substituted or unsubstituted alkyl group, alkylthio group, alkoxy group, aryl group, aryloxy group, arylthio group, or acylamino group. R_6 represents an alkylene group or an acylamino group. n is an integer from 1 to 3. m is an integer of 1 or 0. R_5 and R
The total number of carbon atoms in _6 is 12 or less. M represents a cation.