JPS59107352A - Photographic element - Google Patents

Abstract

PURPOSE:To obtain a photographic element improved in wet adhesive strength between a timing layer and an adjacent photographic layer by successively forming a neutralization layer, a timing layer, a specified primer layer, and a photographic layer contg. hydrophilic org. colloid on a support. CONSTITUTION:In a photographic element prepared by forming a neutralization layer, a timing layer, and a photographic layer contg. a hydrophilic colloid successively on a support, a primer layer contg. a non-crystalline gelatin and a polymer latex is formed between said timing layer and said photographic layer. A preferable polymer latex is vinyl polymer latex, polyurethane latex, etc., and preferable gelatin is alkali-treated or acid-treated gelatin and especially, the alkali-treated gelatin.

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to color diffusion transfer methods, and more particularly to photographic elements comprising peelable, two-sheet diffusion transfer photographic materials.

Silver halide transfer is the true material (hereinafter referred to as transfer material)
In the process that ultimately leads to the appearance of a visible image,
It collectively includes functional layers having various functions such as containing the image source material, or generating and moving the image, controlling it, or fixing the image by mordant, etc. 1, and the transfer layer. The functional layers are combined into a composite photographic element to suit the type of use of the material.

Functionally, the photographic elements can be roughly divided into image-generating elements that contain image sources and generate image-providing substances, image-receiving elements that capture and fix the generated image-providing substances in an imagewise manner, and image-providing elements that contain image-providing substances. An auxiliary control element that functions to control the process from generation to capture and fixation in terms of photographic performance, or to assist control based on the needs of the photographic operation of the transfer material, as well as the needs of the production process. Depending on the form of the transfer material, additional processing elements may be additionally produced.

The main components of the image-forming element are an emulsion layer containing a photosensitive silver halide emulsion, or a colorant-releasing layer that produces and releases an image-providing substance such as a dye or its precursor. The containing compositions may be mixed into a combined colorant release layer.

The subject of said image-receiving element then has the function of imagewise mordant fixation of the dye when the image-providing substance of the image-forming element is a dye or a precursor thereof, or alternatively the image-providing substance is non-dye, e.g. In the case of a reducible substance, the image-receiving layer has the function of inducing a reduction reaction and capturing and fixing the reduction product.

The photographic layer according to the present invention is the emulsion layer and/or the coloring material emitting layer (hereinafter abbreviated as the coloring material layer), or their combined color No. 4 layer and image receiving layer.

Furthermore, the auxiliary control elements include a support, a reflective layer with optical auxiliary functions, a light-shielding layer, a filter layer, a timing layer, a barrier layer, and a neutralization layer with a photographic process control function (collectively referred to as a process control layer). ), one layer of brimer or subbing layer that adheres two adjacent layers to each other, and an intermediate layer between the layers,
It includes various functional layers such as a protective layer or an anti-curling double layer according to various requirements. In the present invention, various functional layers included in the auxiliary control element are generally referred to as auxiliary layers.

However, the various functional layers included in the auxiliary control element are
Among the surface elements of said image-generating element and image-receiving element,
Or, it is incorporated and interposed between them, and as the surface element, ■
A sheet or two-sheet assembly is formed.

Processing that causes a photographic chemical reaction in the surface element (when the q-adding element is mixed into or added to another element, it may penetrate into both elements and remain as an element,
In some cases, a formal layer is placed between surface elements. However, when the surface element is peeled off in a two-sort type, it is generally removed from at least the image-receiving element to be viewed.

Various types of conventional colored one-sheet rolled materials have been described in the technical literature. In these types, the image-receiving layer with the photographic image to be viewed remains permanently attached to the dye layer and the auxiliary layer when a transparent support is used on the viewing side of the element assembly. The image is formed by pigments produced in the colorant layer and diffused through the assemblage of the structure to the image receiving layer. After exposing the element assembly, the alkaline processing composition penetrates the various layers and begins development of the exposed emulsion layers. The emulsion layers are developed in proportion to each degree of exposure and the image dyes formed or released in each hue layer begin to diffuse through the structure.

At least a portion of the imagewise distributed diffusible dye diffuses into the image-receiving layer to provide an image of the object.

Regarding the one-sheet transfer material described above, for example, U.S. Pat. No. 3.415.644 and U.S. Pat.
No. 3.415.646, No. 3.594.16
No. 4, No. 3,594, No. 165, No. 3.573.
No. 04.3 and No. 3.647.437, etc.

Other so-called "peel away" color two-sheet diffusion transfer materials are disclosed, for example in U.S. Pat.
．． No. 362.819 and No. 3.362.821. In these types, the image-receiving element (hereinafter referred to as receiving element) is separated from the image-forming element (hereinafter referred to as generating element) after development and transfer of the dye to the image-receiving layer.

U.S. Patent No. 2.983.606, U.S. Patent No. 3.4.85.
No. 608, No. 3.907.563, British Patent No. 1.
No. 496.363, special fi+'i 1982-136547
The number refers to dye image-providing substances (hereinafter abbreviated as donor substances).
After exposure, a production element consisting of a support having at least one emulsion layer thereon in combination with a carrier element is immersed in a non-viscous activating agent or processing composition and then superimposed with a receiving element to obtain the result of development. Two-sheet diffusion in which the resulting vertically distributed donor substance is transferred from the generating element to the receiving element, and after a predetermined period of time, the two elements are fractionally peeled off to form and set a color image on the image-receiving layer. A transfer method is disclosed.

In photographic elements used in color diffusion transfer processes, one stop is required to stop development after a predetermined amount of time, e.g.
Is any mechanism necessary? Since development occurs at high pH, development is stopped by simply letting the pH drop. For this purpose, it is possible to use a neutralizing layer, such as a polymeric acid, in which case the element is stabilized after the required dye diffusion has taken place. Typically, a process control layer is used that includes one or more timing layers and neutralization layers to prevent the pH from dropping prematurely and stopping development.

1, thus the development time is established by the time required for the alkaline composition to penetrate the timing layer.

When the system begins to stabilize, the alkali is depleted throughout the structure, and silver halide development is stopped in response to this decrease in pE. For each photo layer, this shield! The i-mechanism establishes an associated dye scene of 4 depending on the silver halide development amount and each exposure value.

Stringent demands are placed on the physical properties of photographic elements for such two-sheet diffusion transfer processes. All layers of the generating element and receiving element must be uniformly coatable, stable, and have excellent dry and wet adhesion.

The product element is immersed in a highly alkaline treatment composition for no more than 10 seconds at a humidity range of up to 32°C.
Generating elements (must maintain physical integrity)
It must uniformly bond to the surface of the receiving element and remain in intimate contact with the receiving element for the time required to transfer the dye image after release of the external bonding pressure passed by the processing roller.

This treatment time should be expected to exceed 10 minutes, at temperatures that can vary over a wide range. Finally, the producing and receiving elements must be cleanly separated without any appreciable effort, such that 7:r < and not producing distortions of table iN1 in the receiving element.

Conventionally, it has been difficult to simultaneously satisfy all of the above requirements in a two-sheet diffusion transfer photographic element. It was difficult. For example, the wet adhesion strength between the timing layer and an adjacent emulsion layer or image-receiving layer is low, resulting in undesirable transfer of a portion of the emulsion layer to the image-receiving layer when separating the production element and the receiving element. I faced this problem.

Accordingly, there has been a need for a two-sheet diffusion transfer photographic element with sufficient and stable wet adhesive strength between the timing layer and the adjacent emulsion layer or image-receiving layer.

Traditionally, hydrophobic surfaces such as polyolefin or polyester film supports have been subjected to surface treatments, especially hydrophilic treatments, to improve photographic layers and other layers comprising hydrophilic colloids (e.g. emulsion layers, interlayers, filter layers, antihalation layers, mordants). chemical treatment, mechanical treatment, corona discharge treatment, flame treatment, ultraviolet treatment, high frequency treatment, glow discharge treatment, active plasma treatment, laser treatment, mixed acid treatment, ozone oxidation treatment, etc. Surface activation treatment techniques are known.

However, the above surface activation treatment is not suitable for activating and embedding the surface of highly crystalline, chemically inert, hydrophobic supports such as polyolefin-coated paper and polyester films. However, if these surface activation treatments are applied to a timing layer that is thin and requires the above-mentioned functions, the timing layer will be destroyed and its function will be impaired, and the photographic properties of the generated element will be greatly affected. It had a negative impact.

Alternatively, when a corona discharge treatment was applied to one side of a process control layer in which the neutralization layer contained carbon black for the purpose of light shielding, the timing layer was damaged, leading to an extremely rapid pH drop and a decrease in transferred dye concentration. .

U.S. Pat. No. 2,776,219 discloses gelatin subbing solutions. Although different from the photographic element of the present invention, there is a photographic element in which gelatin is coated on a timing layer in a one-sheet type color diffusion transfer material published in Japanese Patent Application Laid-open No. 53
-136823.

However, it has been found that good adhesion cannot be obtained even when gelatin alone is applied between the timing layer and the emulsion layer using a conventional undercoating method.

Furthermore, in an application filed by the present applicant on September 16, 1980, entitled "Photographic Element," a primer made of amorphous gelatin is provided between the timing layer and the adjacent photographic layer in order to improve the adhesion between the two layers. It is described that one layer is interposed.

Although the adhesion between the timing layer and the adjacent photographic layer is generally sufficiently improved by the presence of one layer of fryer,
Adhesion between the timing layer and the adjacent photographic layer is still insufficient, such as when using a timing layer made of carboxy-ester-lactone as described in No. 54,341.

In view of the aforementioned problems, it is an object of the present invention to provide a photographic element for color diffusion transfer processes that has improved adhesion strength between a timing layer and an adjacent photographic layer.

It is a primary object of the present invention to provide a two-sheet diffusion transfer photographic element with improved processing wet adhesion strength between a timing layer and an adjacent copying layer.

Yet another object of the present invention is to provide a timing layer that can be applied without special techniques, is stable, flexible, does not adversely affect the photographic properties of the light-sensitive element, and substantially eliminates the timing function of the timing layer. It is an object of the present invention to provide a photographic element having improved adhesive strength during processing wet between a timing layer and an adjacent photographic layer without deterioration.

The foregoing aspects of the present invention provide that in a photographic element having sequentially on a support (simply referred to as photographic layers unless otherwise required), amorphous gelatin is added between the timing layer and the 41 layer containing a hydrophilic organic colloid. and a photographic element comprising a single layer of brimer containing a polymer latex.

Next, the present invention will be explained in detail.

The polymer latices used in this invention include a wide variety of water-dispersible platform polymers.

Preferred synthetic polymer latexes include vinyl polymer latex, polyurethane polymer latex, and the like. Synthesis, synthesis of polymer latex 1
The combinations of 4r monomers used in this case include monopolymers of the following monomers, and copolymers or cocondensation polymers of two or more monomers. Examples of preferred monomers are listed below, but the invention is not limited thereto.

(1) Acrylic acid ester monomers methyl acrylate, ethyl acrylate, propyl acrylate, butyl acrylate, dodecyl acrylate, 2-phenoxyethyl acrylate, benzyl acrylate, phenyl acrylate, 2-7togyethyl acrylate, 2-goto(diethyl acrylate) -1,2-
Acetoacetoxyethyl acrylate etc.

(2) Methacrylic acid esters methyl methacrylate, ethyl methacrylate, propyl methacrylate, butyl methacrylate, dodecyl acrylate, phenyl methacrylate, diethyl methacrylate, pendyl methacrylate, 2-acetoacetoxyethyl acrylate, etc.

(3) Vinyl esters vinyl acetate, vinyl pyrovionate, vinyl butyrate, vinyl acetoacetate, vinyl benzoin 11ff, vinyl salicylate, etc.

(4) Styrenes Styrene, α-methylstyrene, acetoxymethylstyrene, chlorstyrene, hydroxystyrene, etc.

(5) Vinyl ethers vinyl methyl ether, vinyl ethyl ether, vinyl ethyl ether, vinyl glycidyl ether, etc.

(6) Olefins butadiene, propylene, isoprene, vinyl chloride, vinylitine chloride, acrylonitrile, etc.

(7) Seven-amino group-containing heptad/mers dimethylaminomethyl acrylate, diethylaminomethyl acrylate, dimethylaminomethyl methacrylate, diethylaminoethyl acrylate, diethylaminoethyl methacrylate, and the like.

(8) Carboxyl group-containing monomers acrylic acid, methacrylic acid, itafonic acid, maleic acid,
Fumaric acid, monomethyl itaconate, monoethyl itafunate, monomethyl maleate, monoethyl maleate, sodium acrylate, ammonium acrylate, etc.

(9) Hydroxyl group-containing monomers allyl alfur, 2-hydroxyethyl acrylate, 2-hydroxyethyl methacrylate, 2-hydroxypropyl acrylate, etc.

00 amide group-containing monomers acrylamide, methyl acrylamide, butyl acrylamide, N,N-diethylacrylamide, donyl acrylamide, butyl methacrylamide, etc.

θl) S# Hong i? Monomers with group t Styrene sulfonic acid, vinyl sulfonic acid, vinylbenzyl sulfonic acid, acryloyl oxymethyl sulfonic acid, acryloyloxyethyl sulfonic acid, acryloyloxybutyl sulfonic acid, methacryloyloxymethyl sulfonic acid, methacryloyloxyethyl sulfonic acid, Methacryloyloxyethylsulfonic acid, 2-acrylamide-2
-methylethanesulfonic acid, 2-acrylamide-2-
Methylpropanesulfonic acid, 2-methacrylamide-2
-Methyl ethanesulfonic acid, 2-methacrylamide-2
-Methylpropanesulfonic acid, etc.

0z reactive crosslinking group-containing monomers glycidyl acrylate, glycidyl methacrylate,
diglycidyl itaconate, diglycidyl maleate,
glycidyl vinyl ether, glycidyl crotonate,
Monomers having epoxide groups such as allyl glycidyl ether and glycidyl p-vinylbenzoate.

A monomer having a hydroxyalkylamide group such as hydroxymethylacrylamide, hydroxymethylmethacrylamide, and hydroxyethylacrylamide.

A monomer having an alkoxymethylamide group such as methoxymethylacrylamide, methoxymethylmethacrylamide, ethoxymethylacrylamide, butoxymethylacrylamide, hexyloxymethylacrylamide.

A monomer having an acyloxymethylamide group such as acetoxymethylacrylamide, acetoxymethylmethacrylamide, propionyloxymethylacrylamide.

Monomers having incyanate groups such as vinyl isocyanate and allyl isocyanate.

Divinylbenzene, polyethylene glycol dimethacrylate (ethylene number n = 1 to 14), polyethylene glycol dimethacrylate (ethylene number 1 = l to 14)
, trimethylolbronogun i-remethacrylate, pentaerythritol triacrylate, pentaerythritol tetramethacrylate, and other polyfunctional monomers.

0-stage other monomers N-acryloylpiperidine, vinylpyridine, vinylpyrrolidone, etc.

Next, preferred specific examples of various polymers obtained by combining the above monomers will be described, but the present invention is not limited thereto.

[Exemplary compounds]

(I) Glycidyl methacrylate-butyl acrylate-styrene copolymer (wt% 40:40:
20) (2) Glycidyl methacrylate-ethyl acrylate-vinylidene chloride copolymer (20:30:50) (3) Glycidyl methacrylate-ethyl acrylate-vinylidene chloride copolymer (weight% 3 (140:30) (4) Glycidyl methacrylate-ethyl acrylate copolymer (50:50) (5)
glycidyl methacrylate-ethyl acrylate-3,
-Sulfopropyl methacrylate copolymer
(Same 50:50:05) (6) Chrycidyl metharylate ethyl acrylate-styrene copolymer (
30:50:20) (7) 3-Hydroxyethyl methacrylate-butyl acrylate-1-butyl acrylic 1 note-styrene copolymer (25:30)
:25:20) (8) 2.4-1-lylene diisocyanate-diethylene glycol cocondensation polymer (60
:40) (9) Poly (propylene glycol) diol-2,2-bis(hydroxymethyl) propionic acid-2,4-)lylene diisocyanate cocondensation polymer
(80:5:25) (Note) The above poly
The molecular weight of (propylene glycol) diol is 2000
It is.

The vinyl polymer latex is preferably synthesized by emulsion polymerization from radically polymerizable vinyl monomers.

The vinyl polymer latex particles used in the present invention contain a vinyl monomer of approximately 0.1% relative to the vinyl monomer.
~20% by weight of a dispersant (surfactant) for emulsion polymerization and approx.
After deaerating and purging with nitrogen in an aqueous medium containing ~50 parts by weight of water, emulsifying it, adding additives used in normal emulsion polymerization (e.g., molecular landscape modifiers, antioxidants) as necessary, and finally It is prepared by adding an emulsion polymerization initiator (for example, hydrogen peroxide, potassium peroxide) and emulsion polymerization according to a conventional method. 17. In the case of a cationic polymer latex containing a quaternary ammonium salt, the polymer latex containing the quaternary ammonium salt precursor is prepared according to the method described above, and then the polymer latex is quaternized by a quaternization reaction. Adjusted and manufactured by.

Dispersants used in emulsion polymerization include general anionic, cationic, nonionic, and amphoteric surfactants. These may be used alone or in combination of two or more. It is necessary to specifically limit these surfactants as dispersants for emulsion polymerization.
There isn't.

For example, with anionic surfactants, R-O
303M Oriha R-+0CI7T2CH2+, 08
05M (wherein R is an alkyl group having 8 to 30 carbon atoms,
M represents an alkali metal or ammonium, and l represents a positive integer from 0 to 30. ) and or (wherein R is hydrogen or an alkyl group having 1 to 18 carbon atoms, W is an alkyl group having 1 to 18 carbon atoms, and M is an alkali metal or ammonium). , m is a positive integer up to o-:i, and n is either 0 or 3.4. Examples of amphoteric surfactants such as fatty acid esters include sulfobetaine type and amine β9 type.

The polyurethane latex is also preferably produced by chain extending a prepolymer which is the reaction product of a diisocyanate and an organic compound having two active hydrogen atoms. Useful organic compounds with two active hydrogens are polyalkylene ether glycols, alkyd resins, polyesters and polyester amides.

Polyurethane latexes, which are made by emulsifying a prepolymer and then extending the chain of the prepolymer in the presence of a chain extender, such as water, are useful in the present invention, such as those described in U.S. Pat. .968.575, 3.213.049, 3.294°724
No. 3.565.844, No. 3.388.08
No. 7, No. 3. ．． 179.310 and 3.873
．． Mention may be made of the polyurethane polymer latexes described in No. 484. The particle size of the polymer latex can be arbitrarily determined depending on factors such as the amount of dispersant for emulsion polymerization, the concentration of monomers, the amount of polymerization initiator, stirring speed, and polymerization temperature. The particle size of the polymer latex preferably used in the present invention is 0.01 to 1.0 μm
and particularly preferably 0.02 to 0.5 μm.

The gelatin used in the primer layer, which contains the polymer latex and amorphous gelatin according to the present invention and is present between the photo P layer and the timing layer, may be alkali-treated gelatin, acid-treated gelatin, oxygen-treated gelatin, or acylated gelatin. There are gelatins modified by agents, such as acetylated gelatin, phthalated gelatin, maleated gelatin, or gelatin grafted with a vinyl polymer, and two or more of these gelatins can be used in combination.

Among these gelatins, alkali-treated gelatin or acid-treated gelatin is preferred, and alkali-treated gelatin is most preferred.

A primer layer containing "amorphous gelatin" means that the gelatin in the primer layer exists as random coil gelatin molecules and has a ternary helix structure (Triplehelix 5t), which is considered to be a gelatin crystal.
This means that there is substantially no structure. When gelatin exists as a random coil gelatin molecule, the specific rotation [α] is from 30° to -
The presence of a ternary sock structure increases the levorotation, and the value of [α]D increases from 1250° to 190°.
It is known that it shows a value of 0°.

Random coil and ternary helix structures of gelatin are described by T. H.
The Theory of the Photography,
The Theory of the Process
photographic process) 4th edition”
Pages 52-53 (Macmi l1an T'ubli
shing-New York 1977).

Any method can be selected to make the gelatin layer amorphous, but in general, immediately after applying the gelatin aqueous solution, it is heated at a temperature higher than the gelling temperature, for example, from 80°C to 120°C, for 1 minute without gelling. An amorphous gelatin layer can be obtained by drying for 3 minutes. The specific optical rotation [α]D of the gelatin layer thus obtained is -130°
~-150°. This value indicates that the gelatin layer does not substantially have a ternary sock structure, that is, is amorphous, as described above. The specific optical rotation of a gelatin single film is determined by attaching the gelatin single film to a special holder using a Nujol and measuring the optical rotation angle αC) using a conventional method. The desired specific optical rotation [α]D is expressed by the following formula.

[α']D = 100·α/d Here, d is the sample film thickness of a single film in air (Cmm).

The thickness of the primer layer or the coating amount may be any amount that produces the desired result, but preferably the coating amount of amorphous gelatin is 0.05 to 2.0 j? /m,
”. Particularly preferably 0.1 to 1.0 g/rrl
It is.

The amount of polymer latex used according to the present invention is O, 1 to 10 times, preferably 0, to the gelatin binder in weight ratio.
．． 5 to 5 times. The timing of addition may be the same as the pre-coating amount.

Hydrophilic organic colloids useful in the primer layer and the adjacent photographic layer according to the present invention include a variety of materials known in the photographic art. For example, gelatin, cellulose esters, polyvinyl alcohol, dextran, gum arabic, or Research Disclosure (
Re5search 1)isclo-5ore)A
1.7643 (1978).

The primer layer J5 and the hydrophilic organic colloid layer according to the present invention can be made insolubilized by various curing agents without losing the permeability of the treating agent. Particularly unnecessary curing agents include:
For example, inorganic compounds such as chromium salts and zirconium salts, formaldehyde, glyoxal, mucochloric acid, and aldehyde curing agents such as 2-phenoxy-3-chloromaleic acid described in Japanese Patent Publication No. 46-1872, Japanese Patent Publication No. Sho: M No. 7133, polyepoxy compounds described in U.S. Pat. acryloyl compounds such as N,N',N''-triacryloyl-hexahydro-8-triazine described in British Patent No. 860.323;
U.S. Patent No. 3.362.827, U.S. Patent No. 3.325.2
87, vinyl sulfone compounds described in U.S. Pat. Can be used in combination.

Particularly useful curing agents include formaldehyde, glyoxal, N,N',N"-triacryloyl-hexahydro-8-)lyazine, N,N'-bis(1-aziridine-carbonyl)-hexamethylenediamine. Can be used.The hardening agent is 0.5 to 1 to 1 to 9 gelatin.
It is preferable to use 00 Ill.

Each ridge functional layer according to the present invention can further contain various additives. For example, as surfactants saponins, sodium alkylbenzene sulfonates, sulfosuccinic acid ester salts, anionic compounds such as alkylaryl sulfonates as described in US Pat. No. 12,600,831 and as described in US Pat. No. 3,133,816. In addition, matting agents such as polymethacrylic acid ester, borisnarene, colloidal silicon oxide, and pH adjusting agents such as ammonium hydroxide and acetic acid can also be added.

Conventional coating methods such as gravure coating, bar coating, roll coating, and air knife coating can be used to form various functional layers other than the support, such as a primer layer made of amorphous gelatin and polymer latex of the present invention. Any coating method can be used, such as curtain coating, dikube coating, bead coating, extrusion coating, etc.

Photographic elements according to the invention can take the form of a receiving element consisting of a support having an image-receiving layer thereon, and a producing element associated therewith.

The generating element is adapted to be superimposed on the receiving element and after its exposure forms a so-called photographic assembly.

Photographic images can be formed using the photographic elements of the present invention by immersing the exposed generating element in a processing composition and then bringing the generating element into face-to-face contact with the aforementioned receiving element. From 5 to 50% of the exposed product element is added to the treatment composition.
Develop each exposed emulsion layer by immersing for 30 seconds at a temperature of 15°C to 32°C. The producing element is then brought into contact with the receiving element by passing these two elements over two rollers in face-to-face contact. The assembly thus produced, in tangential form, is
Hold for ~15 minutes. An imagewise distribution of donor material is thus formed as a function of development, and at least a portion of this image diffuses into the receiver layer to form a transferred image. The receiving element is then peeled off from the producing element. The image formed in the receiving element depends on whether the light-sensitive emulsion used in the generating element is a negative emulsion or a directly positive emulsion, and the image-forming reaction mechanism acts in a positive or negative manner. Depending on what is employed, it can be either negative or positive.

The dye image-providing materials useful in this invention can be either positive or negative, and are initially mobile or immobile during processing with alkaline compositions.

Initially mobile, positive-working dye image-providing materials useful in the present invention are disclosed in U.S. Pat. No. 2.983.606;
3.53fi, 739, 2.756.14
No. 2, No. 3, No. 705.184, No. 3.482.9
No. 72, No. 3.880.658 and No. 3.
854. , No. 985.

Examples of negative-working dye image-providing materials useful in this invention are conventional couplers that react with oxidized aromatic primary amine color developers to form or release dyes, such as U.S. Pat. No. 3,227,550. and Canadian Patent No. 602.607.

In a preferred embodiment of the invention, the dye image-providing material is a dye-releasing redox compound (D R,T'!, ).

Such compounds are well known in the art and react with oxidized or non-oxidized developer or electron transfer agents to release dyes. Examples of such non-diffusive DRRs include compounds that work on negatives, such as U.S. Pat.
No. 062, No. 3.698.897, No. 3.628
．． No. 952, No. 3.4-43.939, No. 3, 4
43, 940, same No. 4. , No. 053.312, No. 4.076, No. 529, and JP-A-51-10434.
No. 3, No. 53-46730, No. 53-50736,
No. 51-113624, No. 53-3819, No. 54
-54021, 56-16131, 57-85
No. 055 and Research Disclosure (Re
5earch I)isclosure) 1515
7 (1976L 15654 (1977)).

Preferred embodiments of the present invention, particularly 5 iI, include the aforementioned JP-A-51-10434.3 and JP-A-57-85055.
Use a dye release agent as described in the issue. Such compounds are stabilized sulfonamide compounds that can undergo alkaline cleavage upon oxidation to release a diffusible dye.

Other preferred embodiments of the present invention include positively acting compounds, such as U.S. Pat.
．． No. 479, No. 4.139.379, No. 4.
, 139.389, 4.199.354 and 4.199.355 can be used.

The photographic elements of this invention are used to form monochrome or multicolor positive images. The silver halide emulsion layer of a photographic element is associated with a dye image-providing material. The dye image-providing material has a major spectral absorption within the region of the visible spectrum to which the silver halide emulsion is sensitive. That is, the blue-sensitive silver halide emulsion layer contains a yellow dye image-providing material, the green-sensitive silver halide emulsion layer contains a magenta dye image-providing material, and the red-sensitive silver halide emulsion layer contains a cyan dye image-providing material. are combined. The dye image-providing material associated with each silver halide emulsion layer is contained within the emulsion layer itself or in a colorant layer adjacent to the emulsion layer. Usually, the colorant layer containing the dye image-providing substance is applied as a separate layer below the emulsion layer with respect to the direction of exposure.

The various silver halide emulsion layers of the photographic element used in this invention are arranged in the usual order, ie, from the exposed side, first a blue-sensitive silver halide emulsion layer, then a green-sensitive silver halide emulsion layer and a red-sensitive silver halide emulsion layer. Although it is placed at Nt'i of the emulsion layer, it can be arbitrarily changed depending on the purpose. A layer of yellow filter can be placed between the blue-sensitive silver halide emulsion layer and the green-sensitive silver halide emulsion layer.

Silver halide emulsions used in transfer materials comprising photographic elements of the present invention include silver chloride, silver bromide, silver chlorobromide, silver iodobromide,
A hydrophilic colloidal dispersion of silver chloroiodobromide or a mixture thereof, in which the halogen composition is selected depending on the intended use of the transfer material and processing conditions.

The grain size of the silver halide used may be normal grain size or fine grain size, but the average grain size is about 0. ] Microns to about 2 microns are preferred. Furthermore, it is desirable that the particle diameter be uniform depending on the intended use of the transfer material. Even if the crystal shape of the particles used is cubic,
It may be octahedral or mixed crystal form. These silver halide emulsions are, for example, P, Glaf
Chim Photografic [(Chim
ie photo-graphique') J
(2nd edition, 1957: paul Montel Pa
ris) can be made by conventional methods such as those described in Chapters 18-1.

In the present invention, six surface latent images are mainly formed on the particle surface.
Type silver halide emulsions, so-called negative silver halide emulsions, can also be used, and they mainly form latent images inside the grains.
Internal latent image type silver halide emulsions can also be used.Surface latent image type emulsions are described in Research Disclosure,
17643 (1978).

Internal latent image type silver halide emulsions advantageously used in the present invention include U.S. Pat.
3, 761.276 and 3.935.01
Examples include conversion type emulsions, core/shell type emulsions, and emulsions incorporating different metals, which are described in No. 4 and the like.

After exposure, this type of emulsion is suitable for developing in the presence of a nucleating agent to obtain a fused positive image. Nucleating agents include U.S. Patent No. 2.588.982 and U.S. Pat.
Hydrazines described in No. 5; No. 3゜227, 55
Hydrazides and hydrazones described in No. 2: British Patent No. 1.283.835, Japanese Patent Publication No. 49-38164, US Patent No. 3.734.738, US Pat. 3.615.615; quaternary salt compounds described in U.S. Pat. No. 3.718.470;
) Sensitizing dyes having a Di substituent in the dye molecule; representative examples include acylhydrazinophenylthiourea compounds described in U.S. Pat. Nos. 4.030.925 and 4.031.127. be.

The silver halide emulsions used in the present invention may have color sensitivity extended by spectral sensitizing dyes, if desired. As the spectral sensitizing dye, cyanine dyes, merocyanine dyes, etc. can be used as appropriate.

A variety of silver halide developers are useful in the present invention for processing add-on elements.

Combinations of different developers can also be used, for example as disclosed in US Pat. No. 3,039,869. Such developers may be used in liquid processing compositions, but in one or more regions of the producing or receiving element, such as in an emulsion layer, which are to be activated by the alkaline processing composition. , in the coloring material layer,
Good results are obtained when the developer is incorporated in the intermediate layer or in the image-receiving layer.

Examples of the developer used in the present invention are as follows.

Hydroquinone, amine phenol, e.g. Eva N-methylaminophenol, ]-phenyl-3-virazolidone,
1-7enyl-4,4-dimethousand-3-pyrazolidinone, ■-phenyl-$J-methyl-4-hydroxymethyl-3-birazoulJzdinone, 1-p-tolyl-3-pyrazolidinone, p-tolyl-4-methyl -4-hydroxymethyl-3-pyrazolidinone, N,N-diethyl-p
-phenylenediamine, 3-methyl-N,N-diethyl-p-7enylenediamine, 3-methoxy-N-ethoxy-p-phenylenediamine.

Of those listed herein, black and white developers are particularly preferred as they generally have properties that reduce staining in the image receiving layer.

The alkaline treatment or activation composition used in the present invention is a conventional aqueous solution of an alkaline substance, such as an alkali metal hydroxide, or a carbonate, such as sodium hydroxide or thorium carbonate, or an amine, such as diethylamine. , this aqueous solution preferably has a pH value of >2.

The treatment composition is sulfite), lium, ascorbate,
It contains antioxidants such as piperidino, hexose reguctone, and may contain a silver ion concentration layer Mj agent such as potassium bromide. It may also contain viscosity increasing compounds such as droxyethyl cellulose and sodium carboxymethyl cellulose.

The present alkaline treatment composition also contains, for example, benzyl/I
/ 7 /l/ Near -/l/ and M fVj M 11th & amino acid (for example, 11-aminoundecanoic acid) may contain compounds that promote development or promote dye diffusion.

The processing composition contains titanium oxide, titanium oxide, and so on to prevent the silver halide emulsion from fogging due to external light during processing.
Light-absorbing substances such as carbon black and pH indicators,
It may be advantageous in some cases to include desensitizers such as those described in US Pat. No. 3,579,333. Additionally, development inhibitors such as benzotriazole can be added to the processing composition.

The use of a neutralizing layer in the photographic elements of this invention increases the stability of the transferred image.

The neutralizing layer used in the present invention has a pl of about 1
These polymers are comprised of polymeric acids containing sufficient acid groups to reduce from 3 or 14 to at least 11 and preferably from about 5 to 8 within a short period of time after photographic reaction termination, and these polymers contain an alkali metal, such as sodium or with potassium, or with organic bases, especially quaternary ammonium bases, such as tetramethylammonium hydroxide. The polymer may also contain potential acid-generating groups, such as anhydrides or lactones or other groups, that can react with, capture and retain base. The most useful polymeric acids contain free carboxyl groups, are soluble in water in the free acid state, and form water-soluble sodium and/or potassium salts. Examples of suitable polymeric acids are dibasic acid half ester derivatives of cellulose containing free carboxyl groups, such as cellulose acetate hydrogen phthalate, ethyl cellulose hydrogen succinate, ethyl cellulose acetate hydrogen succinate, carboxymethyl cellulose, polyvinyl hydrogen phthalate, polyacetic acid biester # Acetals of hydrogen phthalates, polyvinyl alcohols and carboxy-substituted aldehydes, such as o-, m- or p-pensaldehyde carboxylic acids; partial esters of ethylene/maleic anhydride copolymers; partial esters of methyl vinyl ether/maleic anhydride copolymers poly(methyl vinyl ether-co-maleic anhydride); poly(ethylene-co-maleic anhydride; polystyrene-co-maleic anhydride); and poly(dioxene-co-maleic anhydride); hydrolyzed or cyclized poly(vinyl acetate-co-maleic anhydride) ); or poly(methacroyloxyethyl-phosphonic acid).

Particular preference is given to polymers and copolymers of acrylic acid, such as polyacrylic acid, partial esters or fully hydrolyzed polymers of polymethacrylic acid, giri (acrylic acid-low ethyl acrylate), polyethyl acrylate, etc.
(acrylic acid-low methylol acrylamide); poly (acrylic acid-coptyl acrylate); poly (
acrolein-co-acrylic acid); poly(acrylic acid-low hydroxyethyl acrylate); poly(butyl methacrylate-co-methacrylic acid); or poly(
Methyl methacrylate (low methacrylate #).

Others: JP-A-52-153739, JP-A No. 53-454
No. 1, No. 53-1023, No. 54-139523,
Research Disclosure (Re5earch page)
Various polymer acids are disclosed in Isclosure) + 2331 (1974) and Isclosure 13525 (1975).

J-, or below the above neutralizing layer (directly or indirectly)
One or more timing layers or inert spacer layers arranged on top of each other can be used. This layer has a timing or control function that lowers the pH value as a function of the rate at which the alkaline treatment composition diffuses through the inert spacer layer. Examples of such timing layers and their function are , Japanese Patent Publication No. 5
No. 6-69629, No. 57-6842, No. 57-68
No. 43, No. 52-14521.7, No. 55-5434
No. 1, No. 57-60332.

The image-receiving layer used in the present invention is a layer for mordant-fixing the diffusion transfer dye, and various known mordants can be used.

As specific examples of mordants, nitrogen-containing secondary and tertiary amines, nitrogen-containing heterocyclic compounds, and quaternary cationic compounds thereof are widely known.

U.S. Patent No. 2.548.564, U.S. Patent No. 2.484.4
No. 30, No. 3.148.061, No. 3.756.
No. 814 discloses vinylpyridine polymers and vinylpyridinium cationic polymers.

U.S. Pat. No. 2,675,316 discloses the use of polymers containing dialkylamino groups as mordants.

Aminoguanidine derivatives are disclosed in US Pat. No. 2,882,156.

U.S. Patent No. 3.625.694, U.S. Patent No. 3.859.0
No. 96, National Patent No. 1.277, No. 453, National Patent No. 2.0
No. 11.012 discloses gelatin and other crosslinkable mordants.

U.S. Patent No. 3.958.995, U.S. Patent No. 2.721.8
No. 52, same fg! No. S2.798.063 discloses an aqueous sol type mordant.

In addition, JP-A-1987. No. 61228 discloses a water-insoluble mordant.

Other U.S. Patent No. 3.709.690, U.S. Patent No. 3.78
No. 8.855, OLS No. 2.84
3.320, JP-A No. 53-30328, JP-A No. 52-1
No. 55528, No. 53-125, No. 53-1024, No. 54-74430, No. 54-1.24726,
No. 55-22766, U.S. time iI'f No. 3°642.
No. 482, No. 3.488.706, No. 3.557
．． No. 066, No. 3.271.147, No. 3.27
1.148, Special Publication No. 55-294+8, No. 56-3
Various mordants are disclosed in No. 6414, No. 57212139, and Research Disclosure 12045 (1974).

The mordant is preferably one that does not easily migrate from the image-receiving layer to other layers within the photographic element, and for this purpose, it can be cross-linked with gelatin or the like as exemplified above, or it can be mixed with water and an organic solvent to form a water-insoluble mordant. Various methods have been used, such as applying from a liquid mixture, emulsifying and dispersing, and applying from an aqueous sol or latex dispersion.

In the practice of the invention, the surface layer of the receiving element contains hydrophilic colloids such as gelatin, derivatized gelatin, starch, dextran, polyvinylpyrrolidone, gum arabic, carboxymethylcellulose, hydroxyethylcellulose, polyvinyl alcohol, guar gum, gum acacia, etc. A single layer of hydrophilic binder may also be provided.

The overcoat layer of the generating element and/or receiving element used in the present invention can be used, for example, in Research Disclosure (1).
5ure) 15162 (1976) may be used, but especially when using the photographic elements of the invention in the two-sheet diffusion transfer process, the interface between the producing and receiving elements is , must be strong enough to withstand the separation forces that occur during handling, bending, and curling, and must be completely rigid for optimal dye transfer.
Since it must also ensure uniform contact, for example, Japanese Patent Laid-Open Nos. 57-58144 and 57-58
Preference is given to using compositions consisting of hydrophilic colloids and silica or ionic polyesters as described in No. 146.

The components of the color diffusion transfer material according to the present invention may further contain various additives.

For example, hardeners such as formalin, mucochlor m1 chromium alum, vinyl sulfone compounds, epoxy compounds, and ethyleneimine compounds, antifoggants or stabilizers such as mercapto compounds, and tetrazaindene, and saponins and alkylbenzene sulfones as surfactants. Acid Sodium, Sulfosuccinic Acid Ester Salt, U.S. Patent No. 2.600.8
31, and amphoteric compounds as described in U.S. Pat. No. 3,133,816.
Optical brighteners such as No. 7127, waxes, wetting agents such as glycerides of higher fatty acids or higher alcohol esters, mordants such as N-guanylhydrazone compounds, quaternary onium compounds, tertiary amine compounds, diacetyl cellulose, styrene rubber. fluoroalkylene sodium malay) cofi combination, band stopper such as alkali salt of reaction product of styrene-maleic anhydride copolymer and p-amino/benzenesulfonic acid, polymethacrylic acid ester, polystyrene, colloid matting agents such as silicon oxide, acrylic esters, film property improvers such as various latexes, glycerin, gelatin plasticizers such as Japanese Patent Publication No. 43-4939, styrene-maleic acid copolymer, Japanese Patent Publication No. 36-21574 thickeners, antioxidants, pH
Conditioners and the like can be used.

The support for the photographic element used in this invention can also be an insulating material so long as it does not adversely affect photographic properties and provides dimensional stability.

Examples of such supports include cellulose acetate film, polystyrene film, polyester film, etc.
/nterephthalate film, polycarbonate, polycarbonate film, etc. In order to prevent capri due to light piping, the support may contain a small amount of light-scattering or light-absorbing pigment such as titanium dioxide or carbon black, or JP-A-47-14245, JP-A-4B-34958, JP-B-Sho.47. -8735, British Patent No. 1.287.4
No. 79, U.S. Patent No. 3.728゜124, U.S. Patent No. 3.8
22.132.

In a preferred embodiment of the invention, the support of the producing element as well as the receiving element is preferably opaque. A sheet material that is a typical opaque support is disclosed in Japanese Patent Application Laid-open No. 56. -16
No. 1540, Research Disclosure + - (Re5
search 1) isclosure ) 15162
(1976), 18336 (1979).

The term "diffusible" as used in the present invention has the meaning generally applied to this term in photography, and for all practical purposes in an alkaline medium, preferably in a medium with a pH of 11 or above. When processed in a photographic element, the organic particles move through the layers of the photographic element, such as the gelatin layer, and exhibit scales.

In the present invention, the timing layer and the neutralizing layer are arranged in such a manner that the adjoining composite layer in the order of primer layer, timing layer, and neutralizing layer is formed into a composite layer consisting of a coloring material layer, an emulsion layer, etc., with the primer layer as a contact surface. It can be provided on the generating element in contact with the straddling/and image-receiving layer on the receiving element. However, when an image is transferred to the image-receiving layer by bringing the generating element and the receiving element into contact with each other, it is preferable to provide it at a position that does not intervene in the diffusion transfer path of the image-providing substance from the generating element to the image-receiving layer.

EXAMPLES Next, the present invention will be specifically explained using Examples, but the embodiments of the present invention are not limited thereby. In the following, "parts" means "parts by weight" unless otherwise specified.

First, an example of the production method of a typical copolymer (exemplary compound) contained in the polymer latex (aqueous copolymer dispersion) used in the first layer of the primer of the present invention will be shown.

Into a 500 d capacity four-bottle flask equipped with a synthetic stirrer, reflux condenser, thermostatic heating device, thermometer and dropping funnel, 200 ml of degassed distilled water and sodium dodecylbenzenesulfonate as an emulsifying dispersant were added. While heating and adjusting the internal temperature to ω°C, stirring was continued at a speed of 250 revolutions per minute. Add to this a polymerization initiator of 0.15%. !
i' ammonium persulfate, 0.15 as polymerization accelerator
g of acidic sodium sulfite, and first add 1/10 of the following mixed monomers, and when polymerization starts, add 40 g of glycidyl methacrylate, 40 g of butyl acrylate, 40 g of styrene for 10 minutes, and then stop adding The remaining monomer was added dropwise at a constant rate over a period of time. During the monomer addition, significant heat generation occurred due to the heat of polymerization, so the system was cooled to maintain an internal temperature of ω°C. After the completion of the monomer dropwise addition, the reaction was continued for another 4 hours under the same conditions to obtain an aqueous dispersion of the emulsion copolymer in the form of fine particles having a dry solid concentration within the range of % by weight. Also, the pH value is 4
Since it is nearby, add a small amount of 1N ammonia water and p
The H value was adjusted to 7 and used.

In addition, the above-mentioned exemplified compounds consisting of the monomers shown in Table 1 were synthesized in the same manner as in the above-mentioned synthesis example.

Others are also synthesized by known synthesis methods.

Table - ■ Example - ■ The following layers were sequentially coated on a transparent poly(ethylene terephthalate) film support with a thickness of 1801 tm, and for one layer of primer related to the present invention, polymer latex was coated as shown in Table-2. By changing the presence or absence of gelatin, the amount added, the type of gelatin, the amount added, and the drying conditions, 15 types of samples a-yQ, including comparative samples, were created.

(1) Neutralization layer poly (n-butyl acrylate rhoacrylic acid) (
A methanol solution containing 100 parts of acid polymer (weight ratio 30/70) and 2 parts of Nranka and pulling agent (manufactured by Toshi Silicone) as a hardening agent was added so that the coating amount of the polymer was 10 g/
rrl A neutralizing layer applied using the extrusion method.

(2) Timing Layer A 15/85 acid/butyl ester ratio prepared by hydrolyzing a vinyl acetate-maleic anhydride copolymer, lactonizing it, and partially esterifying it with n-butanol. A mixture of 95 parts of the lactone polymer described in No. 54341 and 5 parts of poly(vinylidene chloride-rhoacrylic acid-co-methyl acrylate) (weight ratio 65/3015) was mixed with a polymer coating amount of 3, Of! A timing layer coated using an extrusion method using an A7T solution so that it becomes Art.

(3) Primer layer: A primer layer made by applying and drying a coating liquid having the composition shown below. However, the amounts of gelatin and polymer latex seeds'@ and I added are based on Table-2.

Gelatin Predetermined amount of 2% aqueous solution of surfactant (S-1) 5. Qcc surfactant (S
-2) 2% aqueous solution 5. Qcc colloidal silicon oxide (
Matting agent) 35 mqN, N', N''-)
Liacryloyl-hexahydro-S-triazine
60 ■N, N'-bis (1-
aziridine-carbonyl)hegisamethylenediamine
200 ~ Synthetic polymer latex 1o with specified amount of water
The structure of the surfactant used here is shown below.

Surfactant S-2 The amount of coating was determined using a wire bar so that the amount was as described (Table 2).

In addition, as comparative samples, Sample n was prepared by excluding the polymer latex from the coating solution for one layer of primer, and Sample 0 was prepared by excluding the entire coating solution for one layer of primer.

In order to investigate the effect on the timing function of coating one layer of primer on the timing layer,
Table 2 shows the results of determining the time (T) required for neutralization to pH 10 and the activation energy Ea for samples a to 0 according to the method detailed in No. 1452+7.

The neutralization time (T) described herein represents the average time between the time when Aru-f-morphthalein begins to change color with the indicator dye and the time until the dye completely changes color as determined by visual observation.

・B・B4 As shown in the above results, compared to comparative samples n and 0, the sample having one layer of brimmer and comparative samples a to 1 of the present invention are substantially the same, and the coating of one layer of brimmer is The configuration did not alter the performance of the timing layer. However, in the case of comparative sample M, in which the amount of polymer latte and alcohol used was more than 10 times that of the gelatin binder, as shown by the neutralization time T, the permeation of the alkaline aqueous solution was inhibited and the sharpness of the pH decrease was lost. The performance of Nare timing has changed.

Example 2 The following scraps were sequentially applied onto the 15 samples a to 0 shown in Example 1 to produce 15 generation elements (photosensitive sheets) A to 0.

Q) Cyan coloring material layer A cyan image-providing substance having the following structural formula (0,64jj
/m”, ), tricresyl phosphate-1・(0,32
A cyan colorant layer consisting of gelatin (1,6,9β) and gelatin (1,6,9β).

(Month-1 (2) Red-sensitive negative-working silver halide emulsion layer Red-sensitized negative-working silver halide emulsion (0.35 g of silver coating), 2
= 5ec-octadecylhydroquinone-5-potassium sulfonate (0,17) and gelatin (0,1
A red-sensitive negative-working silver halide emulsion layer consisting of 5g/m,'').

(3) Interlayer gelatin ((1,63g/ze) and 2-acetyl-5-s
ec-octadecylhydroquinone (0.45g/n?
).

(4) Magenta hue layer A magenta image-providing substance (0,8
magenta hue layer with diethyl lauramide (0.4 g/m2) and gelatin (1.5 Vm'').

(5) Green-sensitive negative-working silver halide emulsion layer Green-sensitized negative-working silver halide emulsion (silver coating amount 0.5 g/lr?
) Potassium 2-octadecylhydroquinone-5-sulfonate (0,17!q/m'') and gelatin (1
,3gAr? ) green-sensitive silver halide emulsion layer.

(6) Intermediate layer gelatin (0.63g Shio) and 2-acetyl-5-sec
-Octadecylhydroquinone (0,,45,9/m)
The middle layer consists of

(7) Yellow coloring material layer Yellow paint shell donor substance having the following structural formula (0.56 g/m2
), tricresylbosphate (0.25g Shio) and gelatin (0.12j9/m2).

(8) Blue-sensitive negative-working silver halide emulsion layer Blue-sensitized negative-working silver halide emulsion (silver coating amount 0.559/rr?
), potassium 2-octadecylhydroquinone-5-sulfonate (0,171!/m ) and gelatin (1
A blue-sensitive silver halide emulsion layer consisting of 3ji/m,'').

(9) Protective layer gelatin (0.8j!Art), methacrylate beads (2-4 μm O, 1511/m) particle size 0.
2μm silica (0,459/rr?) and tetrakis(vinylsulfonylmethyl)methane (0,2jJ/
m) a protective layer consisting of:

Using these samples, an adhesion test between the timing layer and the adjacent core layer was conducted in the following manner.

On the emulsion side of each sample, make shallow scratches with a razor in the shape of the substrate, and then apply cellophane adhesive tape (JISZ-1522,
The peeling rate of the emulsion film from the timing layer is expressed as a percentage of the adhesion area of the cellophane tape when the tape (manufactured by Chiban Co., Ltd.) is pressed and then the tape is suddenly peeled off. The results are shown in Table 3: A grade, 10-30% grade B, and (9) to 100% grade 6 grade.

Table 3 From the results in Table 3, the adhesion between the timing layer and the adjacent photographic layer was very strong in all the samples according to the present invention.

Example-3 A receiving element (image-receiving sheet) is prepared by first coating the following layers in sequence on an opaque paper support.

1st layer styrene and N,N-dimethyl-N-benzyl-N-P-
(methacroylaminophenyl) ternary conjugate of methylammonium chloride and divinylbenzene (molar ratio: 48
/48/'4) (2,7 Niga), Zeller-y-:/
(2,7,S'/7F+'') and 4-hydroxymethyl-4-methyl-1-7enyl-3-pyrazolidinone (0,331/m'').

2nd layer gelatin (l-2P/m"), ultraviolet absorber; 2-(
2-hydroxy-3-tcrt-butyl-5-n-butylphenyl)benzotriazole, 2-(2-hydroxy-3-tert-butyl-5-methylphenyl)-6
-10 loben'/ ) IJ azole, a mixture consisting of 2-(2-hydroxy-3,5-cyphthylphenyl)benzotriazole and 2-(2-hydroxy-5-n-butylphenyl)benzotriazole (0,81 /
rrf, ) and glyoxal (0,06gArL
” ) middle class.

3rd layer A sticky layer of gelatin (0.65%).

4th layer gelatin (0.27 pa) and silica (14jJ/yr
Overcoat N consisting of l).

After printing the negative image recorded on the color negative film on each of the 15 types of photosensitive sheet samples A to 0 of the production element shown in Example-2 cut into cabinet size, they were placed in a shallow tray type processor. The sample was immersed for a few seconds in a contained activator solution having the following composition at temperatures of 23'C and 32C, and then passed between a pair of pressure rollers and superimposed on the image receiving sheet described above.

Composition of activator solution Potassium hydroxide 56.2.95-Methylbenzotriazole 7.2f111-aminoundecane F! ? 2.09 potassium bromide
2.0g water 1000c
Finish to c.

After 10 minutes, the photosensitive sheet and the image-receiving sheet were peeled off, and the area of the emulsion layer from the photosensitive sheet transferred to the image-receiving sheet was evaluated visually as shown in Table 4 above. As such, the use of a single layer of brimer of the present invention substantially improves the wet-wet bond strength between the timing layer and the adjacent photographic layer and reduces or reduces undesirable transfer of the emulsion layer to the receiver sheet. can be excluded.

Agent Yoshi Kuwahara Beautiful procedural amendment January 18, 1980 Patent J1 / Commissioner Kazuo Wakasugi 1981 Patent Application No. 201593 2 Name of the invention Photographic element 3 Relationship with the supplementary case Patent applicant Address 1-26-2 Nishi-Shinjuku, Shinjuku-ku, Tokyo Name (127J Konishiroku Photo Industry Co., Ltd. 4, Agent 191 Address 6, 1-1 Sakura-cho, Hino-shi, Tokyo) of the specification subject to amendment "Detailed Description of the Invention" Column 7, Contents of Amendment (1) The detailed description of the invention is amended as follows.

Claims (1)

[Claims] In a photographic element having as necessary sequential layers on a support a neutralizing layer, a timing layer, and a photographic layer containing a hydrophilic organic colloid, an amorphous layer is provided between the timing layer and the photographic layer containing a hydrophilic organic colloid. A single layer of 7-lime containing gelatin and polymer latex is provided.
．． A photographic element characterized by: