JPS6148844A - Image receiving element for silver salt diffusion transfer process - Google Patents

Abstract

PURPOSE:To improve light interruption performance by incorporating a polyol having >=2 OH groups and spherical grains having a specified glass transition point or lower in a light interruption layer and a light reflection layer. CONSTITUTION:The light interruption layer contg. a black pigment, such as carbon black, and a hydrophilic colloid, such as gelatin or PVA, in a weight ratio of 5.0/1-0.2/1, and a light reflection layer contg. a white pigment and the hydrophilic colloid in a weight ratio of 15/1-0.5/1 are successively formed on the side of a support reverse to an image receiving layer, and further, a polyol having >=2 OH groups, such as aliphatic polyol, and spherical grains having a glass transition point of <=30 deg.C, such as polyisoprene, PE, or PP, are incorporated in the light interruption layer and the light reflection layer.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a silver salt diffusion transfer method. More specifically, the present invention relates to a so-called peel-off type (beer-apart type) image receiving element for use in a silver salt diffusion transfer method.

(Prior Art) The image receiving element and photosensitive element for forming a transferred image by the silver salt diffusion transfer method and the chemical reaction mechanism leading to image formation are well known.

Among them, the image receiving element for the peel-off type diffusion transfer method is a photographic film unit integrated with a photosensitive sheet, that is, a photosensitive sheet having at least one photosensitive silver halide emulsion layer on a support and another support. A film comprising an image-receiving sheet having at least an image-receiving layer on the body, and a processing liquid container containing a processing liquid between these two sheets and rupturable under pressure.
Form 1 of the unit is most commonly used, and in this film unit, after the silver halide emulsion layer has been imagewise exposed, the film is usually placed between a pair of juxtaposed pressure rollers. By passing the film unit through it, the multi-processing container is ruptured and processing liquid is spread between both sheets, thereby performing development. During this time, the photosensitive sheet remains photosensitive, so it is necessary to provide not only the photosensitive sheet but also the image-receiving sheet with a light-shielding layer containing an opacifying agent, or to use a support incorporating an opacifying agent.

As a result of this development, a transferable silver complex is formed and diffuses imagewise to form a transferred silver image in the image-receiving layer on the other support. The image-receiving sheet is peeled off from the photosensitive sheet in order to obtain the desired positive print or slide, but the peeled image-receiving sheet is affected by its constituent layers such as the neutralization layer and image-receiving layer, as well as its coating history. Curling occurs during storage after peeling. Further, since the opacifying agent contained in the light-shielding layer is generally a black pigment such as car-in-black, it is not desirable from an aesthetic point of view as the outermost layer. (There are also drawbacks such as poor writing performance with chain wheels, etc.) [Problems to be solved by the invention] In order to improve the above-mentioned drawbacks, the notok side of the image receiving sheet (which has an image receiving layer) U.S. Pat. No. 3,752,692 discloses that a light-shielding layer containing a hydrophilic polymer and a black pigment such as car-in black, and a layer containing a white pigment such as titanium oxide and a water-insoluble polymer are sequentially provided on the non-containing side). Tokukai Showa 4
7-37519, British Patent No. 1.388,576, etc., but since this uses different materials such as a hydrophilic polymer and a water-insoluble polymer, simultaneous multilayer coating may cause aggregation at the interface, υ, and repellency. Since this is inconvenient as it may cause problems, each layer must be coated as a single layer. This is quite disadvantageous in terms of cost.

An image receiving element having at least sequentially (1) a light shielding layer containing a black pigment and a hydrophilic colloid P, and (2) a light reflecting layer containing a white pigment and a hydrophilic colloid P on the notch side of the image receiving sheet; Light-shielding properties, anti-curling properties, and multiplication properties are improved, and furthermore, simultaneous multilayer coating of a light-shielding layer and a light-reflecting layer becomes possible. However, with the above layer structures (1) and (2), immediately after the image-receiving sheet is peeled off from the photosensitive sheet, the image-receiving layer absorbs moisture in the processing liquid, so it tends to curl. The purpose of rapidly reducing the water content in the processing solution to quickly remove such curls - I1%P
A drawback was discovered that when heat was applied with a hair dryer, the layer on the notock side cracked. Even under low humidity! It has been found that the diffusion transfer process has a drawback in that the back layer is squeezed by a processing roller, which causes cracks in the back layer during the process, resulting in light leakage.

[Purpose of the invention]

An object of the present invention is to provide an image-receiving element for a silver salt diffusion transfer method, which contains a thick layer having sufficient light-shielding properties, anti-curling properties, and writing properties.

Another object of the present invention is to provide an image-receiving element for a silver salt diffusion transfer method, which has a notch layer with good heat resistance.

Another object of the present invention is to provide an image-receiving element for silver salt diffusion transfer that has a light blocking ability even under low humidity.

It is still a further object of the invention to provide a photographic film unit for peel-off diffusion transfer comprising such an image-receiving element.

[Failure to solve the problem]

As a result of extensive research, the present inventors have found that in an image-receiving element for silver salt diffusion transfer method having an image-receiving layer containing a silver precipitant on a support, the side of the support that does not have an image-receiving layer ( (1) a light-shielding layer containing a black pigment and a hydrophilic colloid;
(2) A light-reflecting layer containing a white pigment and a hydrophilic colloid, the light-shielding layer and/or the light-reflecting layer containing a polyol containing two or more hydroxyl groups and a glass transition point (Tg) of 30°C. It has been found that the above object can be effectively achieved by an image receiving element for a silver salt diffusion transfer method, which is characterized by containing spherical particles as follows.

The black pigment used in the present invention is preferably carin black↑. The raw material for car-in black can be made by any method such as channel, thermal, and furnace.The particle size of car-in black is not particularly limited, but it is preferably 90 to 1800X. Grafted carin black as described in JP-A No. 59-97142 may also be used. Further, as the white pigment, titanium oxide, barium sulfate, and zinc oxide are preferable. Particularly preferred is titanium oxide.

The hydrophilic colloid P used in the present invention is preferably gelatin, phthalated gelatin, vinyl alcohol,
Polyethylene oxide, acrylamide P1 Cellulose derivatives such as polyvinylpyrrolidone, polyethyleneimine, polyacrylic acid, hydroxyethylcellulose, and cardoxymethylcellulose. Particularly preferred is gelatin''tls.

The light-shielding layer of the present invention preferably has a black pigment/hydrophilic colloid weight ratio of 5°0 to 0.2-'Q in view of light-shielding ability and film brittleness (causing cracks).

More preferably, the ratio is 4.0 to 0.5.

Still more preferably 3.0 to 1.0. The amount of black pigment added as a light-shielding agent may be adjusted depending on the sensitivity of the light-sensitive material to be light-shielded, but it is preferably about 5 to 10 at optical 0 degrees.

In the light-reflecting layer of the present invention, the white pigment/hydrophilic colloid weight ratio is preferably 15 to 0.5 from the viewpoint of intralayer adhesion (inside layer cohesive failure). More preferably, it is 12-1. More preferably, it is 10-2. The amount of white pigment added as a light reflecting agent may be adjusted appropriately depending on how much writability is required, for example, but from the viewpoint of the protective role for the light shielding layer and the writability, it should be 1.0 to 151. /ld is used, 3~
xog7- is preferred.

In addition, if a material with high hardness such as titanium oxide is on the outermost layer, when friction occurs with a material with low hardness, it may be scraped off and adhere to the surface, staining the film. It is preferable to further provide a protective layer containing a hydrophilic colloid on top of the reflective layer. Since this protective layer is made of a hydrophilic colloid, it can be coated in three layers simultaneously, including a light-shielding layer and a light-reflecting layer.

Further, in order to impart adhesion resistance to the 7972 layer of the present invention, it is preferable to add a matting agent to the above-mentioned protective layer. The matting agent is preferably a latex polymer such as polymethyl methacrylate or an inorganic material such as silica.

Two or more hydroxyl groups used in the present invention? Preferred liols are aliphatic diols such as ethylene glycol, chrycerin, pentaerythritol, trimethylolpronozone, furo2lene glycol, and cyclohexane 1.4-u methanol. Further active ingredients are glycerin and trimethylolpronone. Particularly preferred is glycerin.

The amount of these polyols to be added is a polyol/hydrophilic roller 41 weight 1:1 ratio of preferably 2 to 0.05, more preferably 1 to 11, and even more preferably 0.5
~0.1.

The spherical particles used in the present invention have a Tg of 30'C or less)
More preferably, Tg is 10'C or less.

Examples of the spherical particles used include polyisoprene,
To polyethylene, propylene, polyethyl acrylate, polybutyl acrylate, poly-8ee-butyl acrylate, polypropyl acrylate, polyhexyl acrylate, polymethoxybutyl acrylate, poly N-octylacrylamide, polybutyl methacrylate, poly-2-ethyl Xyl methacrylate, polyoctadecyl methacrylate, poly(vinylidene chloride-co-acrylonitrile-co-acrylic acid) (85:12:
3 mole%), vinyl acetate, No.? (styrene-co-butadiene-co-acrylic acid) (40:58:2m
ole%), poly(methyl methacrylate-co-ethyl acrylate) (30 nia 0 mole'A), poly(ethyl methacrylate-co-ethyl acrylate))
(50:50 mole%), poly(butyl acrylate 2-acrylamido-2-methylpronognesulfonic acid) (98:2 mole%), poly(ethyl acrylate acrylic acid) (97:3 mole%), poly(butyl Methacrylate - coptyl acrylate -
comaleic acid) (40: 59-: 1 mole
%), polymethyl methacrylate-co-butyl acrylate-co-ethyl acrylate) (30: 50:
20 mole%), and other Re5ea
rch Di3closure Juiy1980 1
The latex chamber Tg described in No. 9551 having a Tg of 30° C. or lower may also be used.

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

The diameter of the spherical particles is preferably 0.001 to 1 μm. More preferably, it is 0.005 to 0.5 μm. Still more preferably, it is 0.01 to 0.1 μm.

From the viewpoint of cracking and coating properties, the spherical particle/hydrophilic ratio (weight ratio) is preferably 1.0 to 0.01. More preferably, it is 0.5 to 0.1.

The spherical particles can be produced by a conventional emulsion polymerization method or a method well known to those skilled in the art, such as by emulsifying a synthetic resin. When creating these, reference may be made to Synthetic Resin Emul Kuyon (Kobunshi Kankokai), edited by Taira Okuda and Hiroshi Inagaki.

Curling of the image-receiving sheet obtained by the present invention is prevented by hydrophilic colloids and/or polyols contained in the light-tracing layer and the light-reflecting layer, but when the image-receiving sheet has a (retention) layer, the hydrophilic colloids contained in the protective layer. (also acts as a curl prevention mechanism), and the optimum amount to be added can be selected according to the film physical properties (crystallinity, etc.) of the binder or polymer used on the image receiving side. The preferable addition amount (total hydrophilic bromine 1" amount on the side) is 1 g/- to 10 y/y. The preferable addition amount of polyol is 0.5 g/d to 5 y/d.
9/m'.

Furthermore, the back layer used in the present invention is preferably water resistant, and for that purpose it is preferable to add a hardening agent (it does not matter which layer it is added to). As the hardening agent, those well known to those skilled in the art can be used, but the amount added is preferably 0.3 to 7.
Weight%.

The support used in the present invention may be transparent or opaque, but
Preferably, the material does not undergo significant dimensional changes during processing. Examples of such supports include cellulose acetate film, polystyrene film, ethylene terephthalate film, polycarbonate film, baryta paper, and water-impermeable polymers such as polyethylene, which are used in common photographic materials. Examples include laminated paper.

In order to obtain a white background, a whitening agent such as titanium oxide or sulfuric acid may be added to the support, or the above-mentioned whitening agent may be coated on the support.

A preferred embodiment of the image-receiving layer constituting the image-receiving sheet of the present invention is a substance (referred to as a silver precipitant substance or development nucleus) that catalyzes the reduction reaction of a water-soluble silver complex in the silver salt diffusion transfer method.
This is a layer containing in an alkaline treatment composition-permeable inder.

Silver precipitating substances include zinc, mercury, lead, cadmium,
Heavy metals such as iron, chromium, nickel, tin, copper, etc., precious metals such as radium, platinum, silver, and gold, or sulfides, selenides, tellurides, etc. of these heavy metals, and conventional silver precipitating agents. All known methods can be used. These silver precipitant materials can be used either by reducing the corresponding metal ion to form a metal 7041 dispersion or by mixing a metal ion solution with a soluble sulfide, selenide or telluride solution to form a water-insoluble metal. It is obtained by making a coro 41 dispersion of sulfide, metal selenide or metal telluride.

To obtain an image-receiving element that gives a favorable tone image, these silver precipitant materials are usually present in the image-receiving layer in an amount of 10-10 to
10-', j9/an'', preferably 10-8
~10”” ji/cm2.

In addition, there are hydrophilic binders such as gelatin, polyvinyl alcohol, calxoxymethylcellulose, methylcellulose, etc., but in particular, alkali-impermeable polymers can be made alkali-permeable by hydrolysis and made into alkali-permeable binders. /Goo is suitable.

Hydrolyzable, alkali-impermeable, 7 Limers include cellulose esters such as cellulose triacetate, cellulose diacetate, cellulose diacetate, cellulose acetate butyrate, polyvinyl acetate, vinyl propionate, polyvinyl Examples include polyvinyl esters such as chloroacetate.

An alkali-impermeable polymer layer made of at least one of these polymers becomes alkali-permeable by hydrolysis with an alkaline solution. In addition, polyvinyl acetals such as polyvinyl formal, polyvinyl acetal, and polyvinyl butyral can also be used. In this case, it can be made permeable to alkali by acidic hydrolysis.

Alkali-impermeable, d To make the IJ layer permeable to dialkali by alkaline hydrolysis, add an alkali such as sodium hydroxide, potassium hydroxide, lithium hydroxide, or tetraalkylammonium hydroxide to an alcohol such as methanol or ethanol. t1 degrees from 10 to 90 degrees! A saponification solution dissolved in an aqueous alcohol solution is prepared, and this saponification solution is brought into contact with a layer of an alkali-impermeable polymer such as cellulose ester. As a contacting method, any conventionally known contact means such as brush application, roller application, air knife application, spray application, or immersion in a saponification solution bath can be applied. At least the surface of the alkali-impermeable polymer layer is saponified by contact with the saponifying solution.

The saponified layer becomes permeable to an alkali and can be penetrated by a diffusion transfer processing solution.

To prepare an image-receiving layer for the silver salt diffusion transfer method, cellulose ester or cellulose tateha diacetate is impregnated with a silver precipitant by one vapor deposition, and then coated on a support and hydrolyzed with alkali, or a cellulose ester solution is used. Among them, for example, there is a method in which a silver precipitant is created on the spot by reacting silver nitrate with valorized sodium, and it is coated on a support and then hydrolyzed with alkali. A method in which a silver precipitant is embedded in the hydrolyzed layer at the same time as the cellulose ester layer is hydrolyzed, and a method in which a silver precipitant is embedded in the hydrolyzed layer at the same time as the cellulose ester layer is hydrolyzed with alkaline to form regenerated cellulose, and then in the hydrolyzed layer, for example, a silver precipitant is embedded in the hydrolyzed layer. A method of creating a silver precipitant by reacting with a reducing agent can be used.

The neutralizing layer that can be used in the image-receiving sheet of the present invention includes a film-forming acid, i? The use of +7-mer is preferred; any such acidic polymer can be used. Examples of acidic polymers include copolymers of maleic anhydride, such as styrene-maleic anhydride copolymers, methyl vinyl ether-maleic anhydride copolymers, ethylene-maleic anhydride copolymers, and copolymers of maleic anhydride and ethylene. Monobutyl ester of a polymer, monobutyl ester of a copolymer of maleic anhydride and methyl vinyl ether, monoethyl ester of a copolymer of maleic anhydride and ethylene, monopropyl ester of the same copolymer, Monopentyl ester, monohexyl ester of the same 1a combination,
Monoethyl ester of a copolymer of maleic anhydride and methyl vinyl ether, monopropyl ester of the same copolymer, monobenzyl ester of the same copolymer, monohexyl ester of the same copolymer, etc.; Polyacrylic acid: Polymethacrylic acid Copolymers of diacrylic acid and methacrylic acid in a favorable ratio Niacrylic acid or methacrylic acid and other vinyl monomers, such as acrylic esters (such as butyl acrylate), methacrylic esters, vinyl ethers, acrylamide copolymers with various ratios of acrylic acid or methacrylic acid, preferably acrylic acid or methacrylic acid content of 50 to 90 mol. Among these acidic polymers, it is preferable to use polyacrylic acid, acrylic acid-butyl acrylate copolymer, or maleic anhydride-methyl vinyl ether copolymer. The various polymers mentioned above may be used alone or in combination of two or more. Further, for the purpose of increasing membrane strength, etc., the above acidic polymer may be used in combination with a cellulose derivative such as acetylcellulose or other dilimers.

Neutralization timing layers are mainly composed of, for example, gelatin, polyvinyl alcohol, polyacrylamide, partially hydrolyzed polyvinyl acetate, copolymers of β-hydroxyethyl methacrylate and ethyl acrylate, and even acetyl cellulose. and other U.S. Patent Nos. 3,455,686, 3,421,893, and 3
．． No. 785,815, No. 3,847,615, No. 4,
009,030, JP-A-52-14.415, etc. can also be used. Furthermore, the above-mentioned neutralization timing layer is described in, for example, U.S. Pat. No. 4,056,394, U.S. Pat. It is also possible to use a single layer of a polymer whose permeation of an alkaline processing liquid has a large temperature dependence.

Additionally, polymerization products of monomers that can undergo β-dissociation in an alkaline environment can also be used in the neutralization timing layer.

The portion of the cellulose ester layer containing acetylcellulose as an embodiment of the image-receiving sheet for silver salt diffusion transfer method improves the color tone, stability, and other photographic properties of the silver transfer image. It may also contain one or more mercapto compounds suitable for. Such mercapto compounds are utilized during imbibition by diffusing from the position where they are initially placed. This type of image receiving element was developed by Richard D.
dW, Young) U.S. Patent No. 3,607.26
No. 9 and Japanese Patent Application No. 58-148979.

Also, if necessary, between the layer of hydrolyzed cellulose ester containing a silver precipitant and the lower layer of cellulose ester or partially hydrolyzed cellulose ester (which may contain the above-mentioned mercapto compound), Another layer of hydrophilic iris may be provided. Irimers 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, calxoxymethylcellulose, pullulan, hydroxypropylcellulose, etc.). ), hydrophilic synthetic polymers (e.g., polyacrylamide P1, polymethylacrylamide, poly-
N-vinylpyrrolidone, 2-hydroxyethyl methacrylate, etc.).

Although the image-receiving sheet of the present invention may further include a photosensitive layer on the same support, it is preferable that the image-receiving sheet does not include a photosensitive layer. That is, the photosensitive layer is preferably a component of a photosensitive sheet coated on a support separate from the image-receiving sheet, and a processing liquid is applied between the image-receiving sheet and the photosensitive sheet. Preferably, it is in the form of a photographic film unit disposed with a processing liquid container rupturable under the pressure contained therein.

The receiving element may optionally contain additives such as hardeners, fluorescent brighteners, coating aids.

As the photosensitive element, one that is conventionally known in the field of silver salt diffusion transfer method is used. The silver halide photographic emulsion contained in the light-sensitive element preferably has a silver halide composition of silver bromide or silver iodobromide, and contains silver halide grains ↑ with an average grain size of 3μ or less, and mainly contains silver halide grains on the grain surface. A silver halide photographic emulsion is a silver halide grain on which a latent image is formed. Further, as a binder, a hydrophilic colloid such as gelatin is usually used.

The silver halide photographic emulsion is preferably chemically sensitized,
It is further spectrally sensitized by a methine dye. Furthermore, compounds such as azoles are usually added to the above-mentioned photographic emulsions for the purpose of preventing fog or stabilizing photographic performance.

The photosensitive element preferably has a hydrophilic colloid layer (for example, a protective layer) other than the photographic emulsion layer on the support, and the photographic emulsion layer or other hydrophilic colloid layer contains a coating aid, an antistatic agent, Matting agents, plasticizers, development accelerators, hardeners, filter dyes, ultraviolet inhibitors, etc. can be added.

The developing agent used in the present invention includes hydroxyamine/developer such as N,N-diethyl-hydroxylamine, N,
N-His-methoxyethyl-hydroxylamine and His-N
Preference is given to using IN-his-ethoxyethyl-hydroxylamine. A phenidone compound may be used in combination as an auxiliary developer.

The processing compositions used in the present invention preferably include silver halide solvents such as U.S. Pat.
57,275 and 2,857.276 (for example, uracil, urazol, 5-methyluracil). The treatment composition usually contains alkalis (e.g. alkaline hydroxides, e.g. sodium hydroxide, potassium hydroxide), polymeric film forming agents (e.g. hydroxyethyl cellulose, Na) IJ umcarxymethyl cellulose), and Other compounds known in the silver salt diffusion transfer process may be included, such as antifouling agents, dosing agents such as mercapto compounds, and stabilizers such as oxyethylamino compounds.

(Example) Example 1 (1) Preparation of image-receiving element (4) An ethylene laminate grinder was prepared by laminating polyethylene on both sides of a corona discharge-treated polyethylene support.
12 g of cellulose diacetate (degree of acetylation: 54%) and 8 g of a copolymer of methyl vinyl ether and maleic anhydride (mole ratio of 50,150) were placed on top of polyethylene (with a polyethylene thickness of 1509/d and a thickness of 30 μm) in acetone i o o
rat and methyl ethyl ketone 501! A solution of Rl and 50 ml of diacetone alcohol was applied. Applied pie limmer-9: is 109/rr? Met.

On top of this layer, 20y of cellulose diacetate was dissolved in 200m of acetone and 50d of diacetone alcohol, and 1-(p-N-hexylcarnoζmoylphenyl)-
0.2 g of 2-mercaptoimidazole was added and applied to create a neutralizing timing layer. Is the applied cellulose diacetate 59/rr? Met.

On top of this layer, add 5g of polyacrylamide and 5QQml of water.
0.11 of sodium p-dodebulbenzenesulfonate and 0.75.9 of formaldehyde (35% aqueous solution) were added to the solution and applied. Is the amount of polymer applied 0.5i/lr? Met.

On top of this layer, add 1 ml of cellulose diacetate solution containing palladium sulfide prepared as follows.
-Phenyl-2-mercaptoimidazole was added and coated. The amount of polymer applied was 29/ff/'
There was t%. The cellulose diacetate solution containing sulfide and ceradium used was prepared as follows.

Cellulose diacetate) (degree of acetylation 541,309t Sodium sulfide (9.H2O) 0.05 in a solution dissolved in acetone ssowg and diacetone alcohol 25Qm
9 dissolved in H2O12+d and acetone 18g, and 0.073 gradium sodium chloride (3H20)
．． A solution of V dissolved in 5 ml of H2O and 25 ml of methanol/I/ was added with vigorous stirring.

On the thus obtained cellulose diacetate layer containing radium sulfide, 50fI of KOH was added in 200% of water.
A regenerated cellulose layer containing palladium sulfide was prepared by applying 39 m4/- of an alkaline hydrolyzing liquid dissolved in R1 and 800 g of methanol.

After washing the image receiving sheet containing this regenerated cellulose polish with water to remove residual salts, a copolymer of butyl methacrylate and acrylic acid (157
An image-receiving layer was completed by coating a methanol/acetone solution (85 molar ratio) as a polymer in an amount of 0.4 g/-.

A back layer as shown in Table 1 below was applied to the punctured side of the support containing the image-receiving layer thus prepared to prepare image-receiving sheets A-1 to A-5.

(2) Preparation control of photosensitive layer sheet - average particle size 1°0 μm by double jet method
A gelatin-dispersed silver iodobromide emulsion was prepared.

This was placed in a 100g pot and dissolved in a constant temperature path at 50°C. This was added to 3-(5-chloro-2-[2-ethyl-3-(3-ethyl-2-penzothiasolinilidene) flobenyl-3-penzoxazolio)prononesulfone), 4-(2-[(3 -Ethylbenzothiazolin-2-ylidene)-2-methyl-1-propenyl-3-benzothiazolio)butanesulfonate, 1% by weight aqueous solution of 4-hydroxy-6-methyl-1,3,3a,7-chitrazaindene 10d, 2 -hydroxy-4,
% aqueous solution IQd was added to 10 d1 of a 1-part tS aqueous solution of 6-cyclotriazine sodium salt and 1-part 1 part of sodium P-decylbenzenesulfonate, and the mixture was stirred. This finished emulsion was coated with 6 g of carbon black and 31 gelatin as a light-shielding layer on the back side.Ethylene terephthalate film base K containing titanium oxide was coated to a dry M thickness of 5 microns, dried, and then sampled. I got it. The amount of silver applied was 1.09/n? Deratsu/
child.

(3) Treatment liquid composition Potassium hydroxide (40% KOH aqueous solution) 323 cc Titanium dioxide 3I Hydroxyethyl cellulose 79 I Zinc oxide
9.75 EIN, N-bis-methoxyethylhydroxyamine 75 g triethanolamine solution (4.5 parts triethanolamine to 6.2 parts water) 17.14. p
TetrahyP lovirimidinethione 0.4I2.
4-dimethylcaptopyrimidine 0-35.51'
Uracil 80 I water
1193 9(
4) Development treatment and density measurement The photosensitive layer sheet was subjected to light wedge exposure using a photosensitive layer having a light source with a color temperature of 5400. The photosensitive layer sheet of this exposure source and the above-mentioned image-receiving layer sheet are stacked, and 0.0% of the above-mentioned processing liquid is applied between them.
The film was developed to a thickness of 0.05sx and developed by diffusion transfer, and after 140 seconds in an atmosphere of 25°C, both sheets were peeled off to obtain a positive image.

This was measured using a TCD type self-recording densitometer manufactured by Fuji Film Co., Ltd., and the maximum 0 degrees (Dmax) and sensitivity were determined.

(5) Curl evaluation Perform diffusion transfer development in the same manner as the development process in (4) above,
The processed image-receiving sheet was prepared by peeling off the photosensitive sheet after 40 seconds in an atmosphere of 25°C.
Cut it into rR size and leave it for 24 hours at 25°C, 20% relative humidity, 50 degrees and 80 degrees. Place the above image receiving sheet on a flat surface and measure the height of the edge of the image receiving sheet from the flat surface to f. was measured and taken as the curl value. Plus←) curl is when the image-receiving layer has a concave surface, and minus←) curl is when the image-receiving layer has a convex surface.

(6) Evaluation of wrinkles due to rapid drying Immediately after peeling, hot air was applied to the treated image-receiving sheet prepared in the same manner as in (5) above using a hair dryer to remove residual moisture in the image-receiving layer. Evaporated rapidly.

Warm air was continuously applied for about 60 seconds, and cracks on the back side were evaluated.

(Force: Evaluation of cracks and optical fog due to diffusion transfer under low humidity. Overlap an unexposed luminescent sheet and an image-receiving sheet,
The processing liquid contained in the processing liquid container was left in a constant temperature and humidity room at 5°C and 15% RH for 3 hours under the conditions and exposed to 100001 ux of light to a thickness of about 0.05 cm. The processing liquid was spread between the luminescent sheet and the image-receiving sheet by carefully moving the developing roller. After 40 seconds of development, the photosensitive sheet and image-receiving sheet were peeled off, and optical fog due to cracks in the back layer was evaluated based on the presence or absence of white spots in the transferred image.

(8) Results The results obtained for the image receiving elements A-1 to A-5 are shown in Table 2.

As shown in Table 2, image receiving sheets A-3 and A of the present invention
-4 has small curls to begin with, and changes in curls when relative humidity changes are also small.

Furthermore, what happens when it dries quickly? There are no cracks in the ivy layer and no light fog due to diffusion transfer processing under low humidity.

On the other hand, image receiving sheets A-1, A-2 and A-5 of comparative examples
FFI has fatal drawbacks such as large curls, large changes in curl due to relative humidity, cracking due to rapid drying, and fogging during processing under low humidity (because the ζ layer cracks). .

Therefore, it is clear that the performance of the image-receiving sheet of the present invention is excellent.

Example 2 (1) Preparation of image-receiving element (B) Polyethylene laminated paper (polyethylene laminated paper (
1 cellulose diacetate (acetylation degree 54%) 1:
1, 8 g of copolymer of methyl vinyl ether and maleic anhydride (polymerization ratio 1:1), 100 kg of acetone, 5 Q*t of methyl ethyl ketone, and 5 g of diacetone alcohol.
A solution of 9 ml was applied. The amount of applied polymer was 1 (Bi'/-).

On top of this layer, 0.2 g of 1-(p-N-hexylphenomoylphenyl)-2-mercaptoimidazole was applied to a solution of 20 g of cellulose diacetate dissolved in 200 ml of acetone and 50 d of diacetate/alcohol. .

On top of this layer, 5 g of polyacrylamide and p
- 0.1 g of sodium dodecylbenzenesulfonate;
A solution of 0.75 g of formaldehyr (3s lJ + mol) dissolved in water 5004 was added to
It was applied so that it became rrt.

On top of this layer, add 10g of cellulose diacetate.
A solution of 1-phenyl-2-mercaptoimidazole and 5 ml of 1-phenyl-2-mercaptoimidazole dissolved in 200 d of acetone was applied. The applied cellulose diacetate is 2! There was l/-↑.

The noryethylene laminated paper containing the cellulose diacetate layer prepared in this manner was coated with an alkaline hydrolyzate containing a silver precipitant as shown below at 30 td/m.
``We created an image-receiving layer made of regenerated cellulose containing palladium sulfide.

The alkaline hydrolyzate used was prepared as follows.

First, sodium noradium chloride 3 H2O0,2,!
9 was dissolved in 5 cc of water, and this was added to 100 g of glycerin. A solution prepared by dissolving 1 g of sodium sulfide in 2 cc of water was added to this solution with vigorous stirring to prepare a silver precipitant dispersion of JR radium sulfide.

Potassium hydroxide75. ! The above silver precipitant dispersion was added to a solution of i+ in 30 ml of water and 1200 ml of methanol.

After washing one image-receiving layer with water to remove unnecessary salts, a copolymer of butyl methacrylate and acrylic acid (polymerization ratio 15/85) was dissolved in methanol/acetone to form a polymer of 0.04J! /lr? The image-receiving layer was completed.

A light-shielding layer, a light-reflecting layer, and a protective layer as shown in Table 3 below are provided on the front side of the polyethylene laminate paper containing the image-receiving layer prepared in this way to produce an image-receiving sheet B-1.
~B-9 was created.

(2) Performance evaluation and result reception) Performance was investigated in the same manner as in Example 1 using B-1 to B-9.

The results obtained are shown in Table 4.

It is clear that the image-receiving sheets B-4, B-7 to B-9 of the present invention exhibit excellent performance in all evaluation items of curling, cracking due to rapid drying, and fogging under low humidity.

Preferred embodiments of the present invention are shown below.

1. In the claims, the image receiving element 2 in which the polyol having two or more hydroxyl groups is an aliphatic polyol, Embodiment 1. In the claims, an image receiving element 3 in which the polyol is ethylene tallycol, chrycerin, propylene glycol, trimethylolpropane, or cyclohexane-1,4-dimethazole; in the claims, an image receiving element 4 in which the Tg of the spherical particles is 1θ°C or less; Embodiment 3. , the diameter of the spherical particles is 0.00
Image receiving element 5 having a diameter of 1 to 1 μm, embodiment 3. 6, wherein the spherical particles are polyethyl acrylate, polypropyl acrylate, or polybutyl acrylate; 6; Claims 7; Claims 7; Claims 7; Claims 7; Claims 7; Claims 7; Embodiment 9. Receiving element 8 in which the pigment is Carzen black, Receiving element 9 in which the white pigment is Titanium White 1 in the claims, Receiving element 10 in which the hydrocolloid is gelatin. , an image-receiving element to which gelatin is hardened.

〔Effect of the invention〕

By using only the parent water-based Colloid P as the binder used for Nonotsu, simultaneous WJ coating became possible and costs were reduced.

In addition, since the layers are made up of only the same type of noningu, the adhesion between the layers (separation between the layers) has been improved.

The image-receiving element has a light-shielding layer containing a black pigment and a hydrophilic colloid, and (2) a light-reflecting layer containing a white pigment and a hydrophilic colloid on the notock side of the image-receiving sheet. Curling prevention and scratch resistance are improved.

In addition to containing a light-shielding layer and/or a light-reflecting FAK polyol and spherical particles having a glass transition temperature of 30° C. or lower, the anti-curling property and light-shielding property are improved, and cracks that occur in the layer on the non-stick side are prevented. As a result, light leakage can be prevented.

Procedural amendment September 1982 Patent Application No. 170495 2, Name of the invention Image receiving element for silver salt diffusion transfer method 3, Person making the amendment Relationship to the case: Patent applicant name (520) Fuji Photo Film Co., Ltd. Kasumigaseki Building Post Office PO Box No. 49 Eikou Patent Office Telephone (581)-9601 (Representative) Month, Day, Showa (Delivery date: Month, Showa)
6) Number of inventions increased by amendment 0 The detailed description of the invention column in the specification is amended as follows.

1) On page 23, line 8-X, "polyethylene was laminated with corona discharge" was corrected to "polyethylene was laminated on both sides of the support and the polyethylene was treated with corona discharge."

2) On page 62, line 4 from the bottom, “polyethylene was laminated with corona discharge” was changed to “d on both sides of the support”.
? The polyethylene was laminated and the polyethylene was subjected to corona discharge treatment.''

3) On page 63, line 11, after [0,2NJ, “In addition,
Correct it so that the polymer is s g/m*.

Claims (1)

[Claims] In an image-receiving element for a silver salt diffusion transfer method having an image-receiving layer containing a silver precipitant on a support, (1) a black pigment and a hydrophilic colloid are sequentially added to the side (back side) that does not have the image-receiving layer of the support. (2) a light-reflecting layer containing a white pigment and a hydrophilic colloid; An image receiving element for a silver salt diffusion transfer method, characterized in that it contains spherical particles having a Tg) of 30° C. or less.