JPS6175338A - Photosensitive material for silver salt diffusion transfer process - Google Patents

Abstract

PURPOSE:To obtain a copied image good in peelability of an image receiving layer from a photosensitive layer and freed from image deformation and discoloration during long period storage by incorporating spherical particles having a glass transition point of a specified temp. or lower in a layer, except the uppermost layer, of a photosensitive material for the silver salt diffusion transfer process used for the instant photography. CONSTITUTION:Spherical particles having a glass transition point of <=30 deg.C and the particle diameter range of 0.001-1mum prepared by using the latex of polyisoprene, polypropyl acrylate, styrene-butadiene-acrylic acid copolymer, etc., are incorporated in a layer except the uppermost layer of the photosensitive material for instant photog raphy comprised of the photosensitive layer composed of plural photosensitive silver halide emulsion layers, etc., and the image receiving layer. When these particles are incorporated in the uppermost layer and the photosensitive materials are stucked and stored for a long period, trouble of sticking to each other occurs. As a result, an image prevented from image deformation and discoloration, etc., during long period storage can be obtained without difficult peelability of the image receiving layer from the photosensitive layer and adhesion of developing and fixing processing solns. to the image receiving layer.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a photosensitive material for silver salt diffusion transfer method, which has good peelability between a photosensitive layer and an image-receiving layer.

[Conventional technology]

Image forming methods using silver salt diffusion transfer are well known.

To specifically illustrate the method, an imagewise exposed silver halide photographic emulsion layer is treated with an alkaline aqueous solution containing a developing agent and a silver halide solvent to reduce the exposed silver halide grains to silver; converting unexposed silver halide grains into a transferable silver complex salt with a silver halide solvent, spreading and transferring the silver complex salt by imbivision to a silver precipitant-containing layer (image-receiving layer) overlaid with the emulsion layer; Therefore, a silver image is obtained by reducing the silver complex salt with a developing agent with the help of a silver precipitant. When carrying out this method, a photosensitive material (1) is usually prepared in which a photosensitive halo or silver-genide emulsion layer is provided on a support. A film comprising a processing element consisting of an image-receiving material having an image-receiving layer containing a silver precipitant on a support and a breakable container containing a viscous alkaline aqueous solution containing a developing agent, a silver halide solvent and a thickener. unit is used. First, the emulsion layer of the light-sensitive material is exposed imagewise, and then the light-sensitive material and the image-receiving material are stacked so that the emulsion layer and the image-receiving layer of the image-receiving material face each other. The image-receiving material is passed between a pair of rollers so as to be developed, and after being left for a predetermined period of time, the image-receiving material is peeled off from the photosensitive material to obtain a print in which a desired image is formed on the image-receiving layer.

Regarding silver salt diffusion transferable image receiving elements, Japanese Patent Publication No. 44-327
No. 54 discloses that after alkali-impermeable polymer material is impregnated with a silver precipitant material by vacuum evaporation, the polymer material is dissolved in a solvent, coated on a support, and dried. describes an image-receiving material prepared by subjecting the surface layer of the poly-7 layer to a chemical treatment such as hydrolysis to make it permeable to alkali. Furthermore, Japanese Patent Publication No. 51-49411 describes a method of embedding a silver precipitant during or after saponifying the cellulose ester layer. Furthermore, in U.S. Patent No. 3,671,241,
A method is described in which an image-receiving layer is formed by saponifying a cellulose ester layer containing a precipitant in advance.

[Problem that the invention seeks to solve]

However, even if the above method is applied as is to a photosensitive material for the silver salt diffusion transfer method, it will not work in a so-called peel-off type silver salt diffusion transfer material in which the photosensitive layer and the image-receiving layer are supported on separate supports. After development, when the image-receiving layer is smoldered, the processing liquid adheres to the image-receiving layer, causing damage to the image. When the processing liquid adheres to the image-receiving layer (positive image surface) in this way,
There are disadvantages in that the image becomes distorted and the image tends to change color during long-term storage.

[Means for solving problems]

Therefore, in the present invention, by incorporating spherical particles having a specific glass transition point into layers other than the top layer of a photosensitive layer composed of a plurality of layers, the peelability between the photosensitive layer and the image-receiving layer can be improved for the first time. This is based on the knowledge that the processing liquid does not adhere to the image-receiving layer during peeling.

That is, the present invention provides a photosensitive material composed of a plurality of layers including at least one photosensitive silver halide emulsion layer, in which the layers other than the uppermost layer have a glass transition point (T) of 30°C.
The object of the present invention is to provide a photosensitive material for silver salt diffusion transfer method, which is characterized by containing the following spherical particles.

The present invention is directed to a photosensitive material having a layer structure of two or more layers. Specifically, from the side farther from the support, a protective layer made of gelatin, a photosensitive silver halide emulsion layer, a protective layer made of gelatin, a first photosensitive silver halide emulsion layer,
Examples include those having a layer structure of a second photosensitive silver halide emulsion layer;
It includes any structure as long as the layer has a photosensitive halogen or silver nide emulsion layer. Among these, it is preferable to have a structure in which the layer furthest from the support (uppermost layer) has a protective layer made of gelatin that does not contain photosensitive silver halide.

The light-sensitive silver halide emulsion layer of the present invention is formed from an emulsion containing silver halide grains and a vehicle. Typical vehicles include, for example, research disclosure materials such as gelatin.
Volume 17G, page 17643.26 r Vehicle
s and vObicle extenders J
(December 1978) can be used. In this case, the weight ratio of silver halide/gelatin is preferably in the range of 271 to 182, preferably 1.11 to '/10. Further, in the photosensitive halogenated 7L agent layer, the amount of silver halide is 0.3 to 0.3 in terms of Ag.
3.09/m", preferably 0.3-1.59/m"
, more preferably 0.3 to 1.09/m2.

As the photosensitive silver halide, silver iodobromide and silver bromide are used, and those with a normal content of 0 to 12 mol% (counter silver ion, hereinafter the same), preferably 3 to 10 mol%, are used. Good.

The silver halide grains preferably have an average grain size of 0.5
~3.0 μm, particularly preferably 0.7 to 2.5 μm, and regular shapes such as cubes and octahedrons.
It may have a regular crystalline form, or it may have an irregular crystalline shape such as a spherical or plate-like shape, or it may have a composite shape of these crystalline shapes. It may also consist of a mixture of particles of various crystalline forms.

In addition, silver halogenide grains (the inner layer and the surface layer may have different phases or may consist of a uniform phase.Also, it may be a particle in which the latent image is mainly formed on the surface). (G) Latent image power (particles formed mainly on the surface are preferable).

The emulsion (photographic emulsion) containing silver halide used in the present invention is P. Chimie e by Glafkides.
tPhysique Photographique
(Paul Mantel, 196
7 years), Photogra by G. F. Duffin
phic Emulsion Chemistry (
The Focal Press, 1966)
,V,L.

Written by Zelikman ej al Maki
ng and coating photograp
hic Emulsion (The Focal
PressT'lJ.

(1964), etc.). In other words, any of the acidic method, neutral method, ammonia method, etc. may be used, and any method of reacting the soluble silver salt with the soluble halogen salt (one-sided mixing method, simultaneous mixing method, combination thereof, etc.) may be used. Alternatively, a method in which particles are formed in excess of silver ions (so-called back mixing method) or a simultaneous mixing method is a method in which the pAg in the liquid phase in which silver halide is produced is kept constant. It is also possible to use the so-called Chondrold double jet method.

In the process of silver halide grain formation or physical ripening,
A cadmium salt, a zinc salt, a lead salt, a thallium salt, an iridium salt or a complex salt thereof, a rhodium salt or a complex salt thereof, an iron salt or an iron complex salt, etc. may be present.

After forming a precipitate or after physical ripening, photographic emulsions are usually removed from soluble compounds, and the long-known tardel water washing method, which involves gelatin gelation, may be used as a means for this purpose. In addition, inorganic salts containing polyvalent anions (e.g., sodium sulfate), anionic surfactants, anionic polymers (e.g., polystyrene sulfonic acid), or gelatin derivatives (e.g., aliphatic acylated gelatin, aromatic acylated gelatin, etc.) are used. A sedimentation method (flocculation) may also be used. Note that the process of removing soluble salts may be omitted.Photographic emulsions do not undergo chemical sensitization, so-called
Pr1mltive) emulsion can also be used, but
Usually chemically sensitized. For chemical sensitization, the above G
Iafkides, Duffin and Zellik
mann et al. or H., FrieseriJ.
iGrundlagen derPhotograph
+5chen Prozesse m1tS ilb
erhalogenidemulsionen (Ak
ademische Ver, Iaggesellsch
aft, 1968) can be used.

The protective layer, intermediate M, subbing layer, etc. are formed from hydrophilic polymers such as gelatin and polyvinyl alcohol. Among these, the protective layer may contain a slipping agent such as silicone oil.

According to the present invention, the glass transition point (T,) used is 3.
Spherical particles of 0° C. or lower (hereinafter abbreviated as spherical particles of the present invention).

) includes all those whose T9 is less than 30. Among these, polymer particles with T of 1° C. or less are preferred. In addition, regarding the particle size, the diameter is 0.001 to 1 μm.
Preferably. More preferably 0.005-0.
5 μm, and more preferably 0.5 μm. O1~0.
It is 2 μm.

Specifically, the spherical particles of the present invention include polyisoprene,
Polyethylene, polypropylene, polyethyl acrylate, polybutyl acrylate, poly-5ec-butyl acrylate, polypropyl acrylate, polyhexyl acrylate, polymethoxybutyl acrylate, poly N-octylacrylamide, polybutyl methacrylate, poly-2-ethyl Hexyl methacrylate, polyoctadecyl methacrylate, poly(vinylidene chloride-co-acrylonitrile-co-acrylic acid) (85:12
: 3 mole%), polyvinyl acetate, poly(styrene-cobutadiene-coacrylic acid) (40: 58
: 2mole%), poly(methyl methacrylate)
Coptyl acrylate) (30: 70+nol
e%), poly(ethyl methacrylate-coethyl acrylate) (50: 50 mole%), poly(phthyl acrylate-to-2-acrylamido-2-methylpropanesulfonic acid) (98: 2 mole%)
Poly(ethyl acrylate tocoacrylic acid) (97:
3 mole%), poly(butyl methacrylate-coptyl acrylate-conifleic acid) (40:59:
1 mole%), poly(methyl methacrylate-co-optyl acrylate-roethyl acrylate) (3
0: 50: 202mole%), and other Re5earch Disclosure Jul
T with the latex described in y1980.19551.

Those having a temperature of 30°C or less may also be used.

Particularly preferred are polyethyl acrylate, polybutyl acrylate, and polypropyl acrylate.

In the present invention, it is particularly important that the spherical particles of the present invention be contained in a layer other than the uppermost layer of the photosensitive layer which is +11F& from a plurality of layers. In this case, it may be added to at least one layer other than the top layer.

The blending ratio of the spherical particles of the present invention is 1 to 50% by weight (
Hereinafter, it will be abbreviated as %. ), preferably 5 to 35%. In addition, when blended with gelatin, the amount of gelatin is 1/20"""/l, preferably 18.

~A is desirable. When the spherical particles of the present invention are blended in this manner, favorable physical properties are imparted to the photosensitive layer, so that the effects of the present invention can be obtained. However, if the spherical particles of the present invention are incorporated into the uppermost layer, a drawback arises in that the uppermost layer and the back layer of another photosensitive material placed thereon adhere to each other when the product is stored for a long period of time.

In the present invention, each of the above layers is coated on a support to constitute a photosensitive material.

Specifically, a photosensitive silver halide emulsion layer is provided on one side of a support having subbing layers on both sides of a polyethylene terephthalate film containing titanium dioxide, and a protective layer is provided thereon.
The photosensitive material has a carbon black layer on the other side and a protective layer on top of the carbon black layer. In addition to this, research
Disclosure ar (Re5earch Discl
rcoating and drying process, Volume 176, 17643, pages 27-28
The method described in J. dures J may be used.

In addition, the support is Research Disclosure (Re5ea)
rch D 1 closure) Volume 176, 17
643. Use the one described in the section ``Suρports J'' on page 28.

[Optional additives]

The photosensitive element of the present invention may optionally contain antifoggants, matting agents, surfactants, spectral sensitizers, hardeners, dyes, and the like.

O Anti-fogging agent: This is added for the purpose of preventing fog during the manufacturing process, storage or photographic processing of photosensitive materials, or for stabilizing photographic performance. Specifically, azoles such as benzothiazoliums, nitroimidazoles, nitrobenzimidazoles, talolopenzimidazoles, bromobenzimidazoles 1. Mercap)% Azoles, Mercaptobenzothiazoles,
Mercaptobenzimidazoles, mercaptothiadiazoles, aminotriazoles, benzotriazoles, nitrobenzotriazoles, mercaptotetrazoles (especially 1-phenyl-5-mercaptotetrazole), etc.; mercaptopyrimidines; mercaptotriazines; for example, oxadorinthion thioketo' compounds such as; azaindenes, such as i-reazaindenes, tetra-gamma-zindenes (particularly 4-hydroxy-substituted (1°3.3a, 7) tetraazaindenes), pe? These are many compounds that have been shortened as antifoggants or stabilizers such as lipoic acid described in Japanese Patent Publication No. 51-25339, such as benzenethiosulfonic acid, benzenesulfinic acid, and benzenesulfonic acid amide.

For more detailed examples of these and how to use them, see, for example, U.S. Pat.
Those described in No. 82.947 and Japanese Patent Publication No. 52-28.660 can be used.

O matting agent: A dispersion of a water-insoluble or sparingly soluble synthetic polymer having a T of over 30°C (with an average particle size of 2
μm or more) can be blended. For example, alkyl (
Meth)acrylate, alkoxyalkyl (meth)acrylate, glycidyl (meth)acrylate, vinyl ester, acrylonitrile, olefin, styrene, etc. alone or in combination, or together with acrylic acid, methacrylic acid, α, β-unsaturated dicarboxylic acid , hydroxyalkyl (meth)acrylate, sulfoalkyl (meth)acrylate, styrene sulfonic acid, etc. as monomer components.

O Surfactant: Various surfactants may be blended for the purpose of coating aid, antistatic, slippery improvement, emulsification dispersion, and adhesion prevention. For example, saponins (steroids), alkylene oxide derivatives (e.g. polyethylene glycol, polyethylene glycol/polypropylene glycol condensates, polyethylene glycol alkyl ethers or polyethylene glycol alkyl aryl ethers, polyethylene glycol esters, polyethylene glycol sorbitan esters, polyalkylene non-ionic substances such as glycolalkylamines or amides, polyethylene oxide adducts of silicone), glycidol derivatives (e.g. alkenylcobayH polyglypeptide, alkylphenol polyglycerides), aliphatic esters of polyhydric alcohols, and alkyl esters of rice. surfactants; alkyl carboxylates, alkyl sulfonates, alkylbenzenesulfonates, alkylnaphthalene sulfonates, alkyl sulfates, alkyl phosphates, N-acyl-N-alkyl taurines, sulfosuccinates anionic interfaces containing acidic groups such as carboxy groups, sulfo groups, phospho groups, sulfate ester groups, phosphate ester groups, etc. Activator;
Amino acids, aminoalkyl sulfonic acids, aminoalkyl sulfates or phosphoric acid esters, alkyl betaines,
Ampholytic surfactants such as amine oxides; alkylamine salts, aliphatic or aromatic quaternary ammonium salts, heterocyclic quaternary ammonium salts such as pyridinium and imidazolium, and phosphonyl containing aliphatic or heterocyclic rings; or cationic surfactants such as sulfonium salts.

0 Spectral sensitizers: Methine dyes, cyanine dyes, merocyanine dyes, complex cyanine dyes, complex merocyanine dyes, holopholarianine dyes, hemisillinine dyes, styryl dyes, and hemioxonol are used to spectral sensitize photographic emulsions. A dye or the like can be used. Particularly useful dyes are those belonging to the cyanine dyes, merocyanine dyes, and complex merocyanine dyes.

In the present invention, it is preferable to use a combination of several sensitizing dyes as described in Japanese Patent Application No. 114533/1983.

○Hardening agents: Inorganic or organic hardening agents, such as chromium salts (chromium alum, chromium acetate), aldehydes (formaldehyde, glyoxal, geltaraldehyde, etc.), N-methylol compounds (dimethylol urea, methylol dimethylhydantoin) ), dioxane derivatives (2゜3-dihydroxydioxane, etc.),
Active vinyl compound (1,3,5-)reacryloyl-
hexahydro-5-)lyryozine, 1,3-vinylsulfonyl-2-propatol, etc.), active halogen compounds (
2,4-dichloro-6-hydroxy-5-triazine, etc.), mucohalogen acids (mucochloric acid, mucophenoxychloroic acid, etc.), and the like can be used alone or in combination.

O dye: may contain a dye as a filter dye or for various purposes such as preventing irradiation,
It may also contain an ultraviolet absorber.

〔how to use〕

The photosensitive material containing the photosensitive element of the present invention includes the following developing agent,
Used with silver halide solvents and image-receiving layers (materials).

O developing agent: It is preferable to use a hydroxylamine developer. They are particularly useful when used in combination with a regenerated cellulose silver receiving layer to produce silver transfer images that require little or no post-processing.

Particularly useful hydroxylamine silver halide developers are N-alkyl and N-alkoxylalkyl substituted hydroxylamines. Many such hydroxylamines are described in U.S. Pat.
No. 7275, No. 2857276, No. 3287124, No. 3287125 and No. 3293034, No. 3
It is described in No. 362961 and No. 3740221. A particularly effective and preferred hydroxylamine silver halide developer has the formula % (where RIA represents alkyl, alkoxyalkyl or alkoxyalkoxyalkyl and R2A represents hydrogen, alkyl, alkoxyalkyl, alkoxyalkoxyalkyl or alkenyl). ). Preferably alkyl, alkoxy and alkenyl groups contain 1 to 3 carbons. Particularly useful is the silver halide phenomenon of hydroxylamine (N
-N-diethyl-hydroxylamine, N-N-bis-
Mention may be made of methoxyethyl-hydroxylamine and N-N-bis-ethoxyethyl-hydroxylamine.

Further, the above developer can be used in combination with the auxiliary developer (unidon compound, p-aminophenol compound, and ascorbic acid).

O silver halide solvent: may be an alkali metal thiosulfate, such as sodium thiosulfate or potassium thiosulfate, preferably as described in U.S. Pat. No. 2,857,274.
2857275 and 2857276, such as uracil, urazol, 5-methyl-uracil and the like.

The treatment composition contains an alkali, preferably an alkali metal hydroxide, such as sodium hydroxide or potassium hydroxide. By distributing the processing composition as a thin layer between the superimposed photosensitive element and image-receiving element, the processing composition may contain polymeric film formers, thickeners, or thickeners, if applied. It is preferable to include it.

Human, loxethyl cellulose and sodium carboxymethyl cellulose are particularly useful for this purpose and are included in the processing composition in concentrations effective to provide the appropriate viscosity according to known principles of diffusion transfer photography. . The processing composition may further contain other auxiliaries known in the silver transfer process, such as antifoggants, toning agents, etc.
g, enrs), stabilizers, etc. may be included.

Mercapto compounds, indazole compounds, triazole compounds, etc. are useful as antifoggants and color toning agents, and are particularly useful in US Pat. No. 3,565,619, US Pat. No. 3,756,825, US Pat. Compounds described in No. 1804365 and the like are effective. The inclusion of oxyethylamino compounds, such as triethanolamine, in particular as stabilizers can also be used by Sidney Kazman (S.
U.S. Patent No. 36191 of idney Kasmaro
As described in No. 85, the shelf life of treatment compositions can be increased.

Image-receiving layer (material): In the present invention, an image-receiving layer preferably made of regenerated cellulose containing a silver precipitant is used. The image receiving element including the image receiving layer will be specifically described below.

Image-receiving elements include supports carrying a layer of regenerated cellulose containing a silver precipitant, such as baryta paper, polyethylene laminate paper, cellulose triacetate or polyesters. Such image receiving elements may be prepared by coating an optionally subbed support with a coating solution of a suitable cellulose ester, such as cellulose diacetate, in which a silver precipitant is dispersed. The obtained layer of cellulose ester is subjected to alkaline hydrolysis to convert at least a portion of the cellulose ester in the depth direction into cellulose. A particularly useful example is a misrepresentation of the unhydrolyzed portion of a cellulose ester layer containing a silver precipitant and/or an underlying unhydrolyzed cellulose ester, such as cellulose diacetate. One or more mercapto compounds suitable for improving the tone, stability or other photographic properties of the image may be included.

Such mercapto compounds are utilized during imbibition by diffusing from the position where they are initially placed.

In addition, if necessary, a layer of hydrolyzed cellulose ester containing a silver precipitant and a lower layer of cellulose ester or partially hydrolyzed cellulose ester (which may contain a mercapto compound as described in #J). Another layer of hydrophilic polymer may be provided between them. Polymers used in this hydrophilic polymer layer include, for example, gelatin, derivative gelatin (such as phthalated gelatin), sugars (such as starch, galactomannan, gum arabic, hydroxyethylcellulose, methylcellulose, carboxymethylcellulose, pullulan, hydroxypropylcellulose, etc.). ), hydrophilic synthetic polymers (e.g.
polyacrylamide, polymethylacrylamide, poly-N-vinylpyrrolidone, 2-hydroxyethyl methacrylate, etc.).

Furthermore, an alkali neutralizing agent layer may be provided if necessary.

In this alkali neutralizing agent layer, for example,
The polymer acids described in 97 and the like are used.

Examples of suitable silver precipitants include heavy metals such as iron, lead,
Zinc, nickel, cadmium, tin, chromium, copper, cobalt, especially noble metals such as gold, silver, platinum and palladium. Other silver precipitating agents include sulfides and selenides of precious metals, especially mercury, copper, aluminum, zinc, cadmium, cobalt, nickel, silver, lead, antimony,
Mention may be made of the sulphides of bismuth, cerium and magnesium, and the selenides of lead, zinc, antimony and nickel. Regarding the function of materials such as silver precipitants in misprinting, see, for example, Nidwin Etch.
U.S. Patent No. 2 issued on December 18, 1956 by Rand et al.
No. 774667.

The image receiving element may optionally contain various additives, such as hardeners,
It may also contain a fluorescent brightener and a coating aid.

Exposure: Exposure of the photographic image by 1 level may be carried out using a conventional method. That is, any of the various known light sources can be used, such as natural light (sunlight), tungsten lamps, fluorescent lamps, mercury lamps, xenon arc lamps, carbon arc lamps, xenon flash lamps, and cathode ray tube 7-line spots. Exposure time is 1/100 of that used in normal cameras.
In addition to exposure times of 0 seconds to 1 second, exposures shorter than 1/1000 seconds, such as exposures of 1/10' to 1/10' seconds using xenon flash lamps or cathode ray tubes, can also be used, and exposure times shorter than 1 second can also be used. Longer exposures can also be used. If necessary, the spectral composition of the light used for exposure can be adjusted using a color filter. Laser light can also be used for exposure. Alternatively, exposure may be performed using light emitted from a phosphor excited by electron beams, X-rays, T-rays, α-rays, or the like.

〔Effect of the invention〕

When photography is performed using the photosensitive material of the present invention, the peelability between the photosensitive layer and the image-receiving layer is good, and the processing liquid does not adhere to the image-receiving layer during peeling, so there is no image disturbance and long-term storage is possible. One advantage is that the image does not change color even when
Photographs of people for identification purposes, microphotographs, CRT for ultrasound diagnostic equipment
Suitable for use in screen photography, etc.

Next, the present invention will be explained with reference to examples, but the present invention is not limited thereto.

〔Example〕

Example 1 O-sensitive silver halide emulsion layer Silver halide grains were formed by double jet method,
After physical ripening using the usual method, desalting treatment and further chemical ripening are performed to form a silver iodobromide emulsion (iodine content 6.5 mol%).
is the first prize. The average diameter of the silver halide grains contained in this emulsion was 1.1 μm.

○Preparation method of photosensitive layer material The above emulsion was dissolved at 40°C and 1 kg (containing 0.65 mol of silver halide) was added with 3-(5-chloro-2-[2
-Ethyl-3-(3-ethyl-2-penzothiazolinyrite)propenyl]-3-penzoxasolio)propanesulfonate 0.02% methanol solution 2
00ml; 4-(2-[:(3-ethylbenzothiazolin-2-ylidene)-2-methyl-1-propenyl-3-benzothiazolio)butanesulfonate 0.
02 wt% methanol solution 20 On+f; 4-hydroxy-6-methyl-1,3,3a,? -100ml of 1% by weight aqueous solution of tetrazaindene! ; 10 ml of 1% by weight methanol solution of Upoic acid; 2-hydroxy-1,3
-111% aqueous solution of bisvinylsulfonylpropane 40
ml and an aqueous dispersion of the synthetic polymer shown in Table 1 were added.

The emulsion containing the above drug was coated simultaneously with a gelatin protective layer containing a latex matting agent of polymethyl methacrylate (T, 105° C.). Application ta
The amount was 0.609 per m''.

The support used was a polyethylene terephthalate film containing titanium dioxide provided with an undercoat layer made of gelatin, and a carbon black layer coated on the opposite side of the emulsion layer for the purpose of blocking light. That is, a protective layer, an emulsion, an undercoat layer, and a support were constructed from the exposed side.

0 Image formation The photosensitive material (sheet) prepared in this manner was layered with an image-receiving layer sheet prepared as described below, and the following processing composition was spread between them to a thickness of 0.04 mm for diffusion transfer. It was developed to obtain a positive image.

22.4 g of cellulose acetate (degree of acetylation 55%) and 3.6-diphenyl-1 on polyethylene laminated paper
,4-dimercapto-38,6H-2,3a,5,6a
- A solution of 0.36 g of tetrazupentalene dissolved in a mixture of 179 acetone and 45 ml of methanol
j! /m' thickness and dry. On top of this, 24g of gum arabic was dissolved in a mixture of 297ml of water and 297ml of methanol, and 6ml of formalin (6% a degree) was added to make 27.1ml! /m' thickness and dry. Furthermore, 17.4 g of cellulose acetate was dissolved in a mixture of 653 ml of acetone and 69 ml of methanol.
It was coated and dried to a thickness of 4-/m''.

On top of the coating prepared as above, an alkaline solution containing nickel sulfide as a silver precipitant was applied at 25 mf/m.
An image-receiving sheet was prepared by coating and drying the film to a thickness of 100 cm, followed by washing with water and drying. The m51 of the alkaline solution used for coating is as follows.

The silver precipitant contained in the alkaline solution, that is, nickel sulfide, was prepared by reacting a 20% aqueous nickel nitrate solution and a 20% aqueous sodium sulfide solution in glybilin with thorough stirring.

The composition of the treatment liquid is as follows.

Potassium hydroxide (40% 011 aqueous solution)
323cc titanium dioxide
3g Hydroxyethylcellulose 79g
Zinc oxide 9.75 gN,
N-bis-methoxyethylhydroxyamine
75 g triethanolamine solution (4 parts triethanolamine to 6.2 parts water)
．． 5 parts) 17.14g tetrahydropyrimidinethione 0.4g 2,4-dimethylcaptopyrimidine OJ5g uracil
90g water
After taking a photo of 1193 g, peelability was examined as follows.

○ Peeling property After 10 minutes of photographing, the photosensitive material (sheet) and the image-receiving sheet were peeled off, and the area of the valley processing liquid adhering to the positive image on the image-receiving sheet at that time was determined as a percentage of the total. The temperatures are 25°C and 35°C.

The results are summarized in Table-1.

Date 1, Month, Day 1, 1978, Incident Indication: 1982 Patent Application No. 198125
No. 2, Title of the invention: Photosensitive material for silver salt diffusion transfer method 3,
Person making the amendment Relationship to the case Applicant name (520) Fuji Photo Film Co., Ltd. 4, Agent 5, Date of amendment order January 29, 1985 6, Subject of amendment Detailed description of the invention in the specification Column 7: Tei
1″0 contents ””181E(7)mri
/-1\+11 Specification page 7, line 13~
“P” on line 20.

1afkides (1964)", 1
Written by P, Glafkides Chim
ie et Physique Photography
ique ) (published by Paul Montel, 1
967), G, F, Duffin (G, F, mouth uf
fin) Written by Photographic Emulsion Chemistry
Chemistry) (TI+e Focal P
ress Published in 196, published in 966, Elle, Zelikman et al. (
Sil.

Making and Coating Photographic Ink Emulsion (M
making and coating photogr
aphic Emulsion＞(The Focal
Press, 1964)”.

[2] Glafki on page 9, lines 11 to 15 of the specification
des, Duffin...196 B) j
, [Glafkides + Duffin and Zelikman
), etc., or Ecchi, Freezer (H, Fri
Grundlagen der Fotografzien Brotzese Mitsut Zilber Halogenide Emulsion (Grundlagen der Photog)
raphischr+n Prozesse witS
ilberhalogenidemul! l1onen
) (8kademischeVerlags
gesollscl+aft, L 968) Corrected to J.

(3) Bright lit! ! "C" on page 13, lines 6-7
oating and drying procedure
es” to “Coating and drying
procedures) Correct to J.

(4) Statement box 13Bj, line 10 “5uppor”
ts" to "Support (5upports) J.

Claims (2)

[Claims] (1) A photosensitive material composed of a plurality of layers including at least one photosensitive silver halide emulsion layer, characterized in that layers other than the top layer contain spherical particles with a glass transition point of 30°C or less. A photosensitive material for silver salt diffusion transfer method. (2) The photosensitive material according to claim (1), wherein the spherical particles have a particle size of 0.001 to 1 μm.