JPS5953839A - Photographic material - Google Patents

Abstract

PURPOSE:To make it possible to strongly adhere a backing layer made of a cellulose ester to a polyester support, by using a vinylidene chloride copolymer layer as an interlayer. CONSTITUTION:A photosensitive emulsion layer and/or an image receiving layer is formed on one side of a polyester support, and on the other side is formed an interlayer contg. a vinylidene chloride copolymer represented by beneral formula I in which A is an ethylenically unsatd. acid or acid salt copolymerizable monomer unit; B is an ethylenically unsatd. copolymerizable monomer unit; x is 40-80wt%; y is 10-35wt%; and z is 5-30wt%. The backing layer contg. a cellulose ester is formed on the interlayer. As A, acrylic, itaconic, maleic, and the like acid, and as B, acrylonitrile, styrene, methyl methacrylate, methacrylamide, n-vinylpyrrolidone, etc. are usable.

Description

[Detailed description of the invention]

The present invention relates to photographic materials, and in particular to photographic materials having a backing layer with improved adhesion on a POIJ x stell film support. Generally, photographic fees such as color photosensitive materials, X-ray photosensitive materials,
A sheet-like photosensitive material such as a printed photosensitive material or a diffusion transfer photosensitive material has a silver halide emulsion layer and a surface protective layer on one side of a plastic support such as cellulose acetate or polyester, and a silver halide emulsion layer and a surface protective layer on the other side. It has a backing layer containing gelatin as a binder. Hydrophilic colloid layers with gelatin as the main binder, such as surface protective layers and backing layers, are susceptible to temperature changes,
It has the disadvantage of easily expanding and contracting due to changes in humidity. Dimensional changes in photographic materials due to expansion and contraction of the hydrophilic colloid layer are extremely serious drawbacks in photographic materials. In order to overcome the above-mentioned drawbacks, it is known to use cellulose esters such as acetyl cellulose instead of a hydrophilic binder layer with gelatin as the main binder.
- Triacetyl cellulose is applied to the side opposite to the photosensitive layer of a polyester film support to form an anti-curl layer, and triacetyl cellulose is used as a binder and an antistatic agent is added to form an antistatic layer. For example, JP-A-49-33630 discloses coating on a polyester film support. However, cellulose ester has poor adhesion to polyester and immediately peels off when applied to an unprocessed polyester film, making it impossible to obtain a usable product. The method for adhering the above polyester film and cellulose ester is to add a solvent capable of dissolving both polymers, such as tetrachloroethane or ethylene chloride, to bring the interface between the two polymers into a fused state, thereby adhering the films together. method is known. It is true that the above method is an excellent method in which a fairly strong adhesive force can be obtained by appropriately selecting the type and concentration of the solvent. However, since this method uses a solvent containing halogen atoms, it does not cause many problems when the cellulose ester coating is relatively thin, but it does not have a curl-preventing IL effect, such as when using diffusion transfer photosensitive materials. When a large dry film thickness and coating film thickness are required to obtain a large dry film thickness, the amount of solvent used becomes large, which poses a major problem in terms of industrial hygiene and pollution prevention. In addition, in order to solve these problems, a large investment in equipment is required compared to equipment when using ordinary water as a solvent or when using a solvent consisting only of carbon, hydrogen, and oxygen. Furthermore, in the conventional adhesion technology using tetrachloroethane, ethylene chloride, etc., a mixed layer is created between the polyester film support and the layer made of cellulose ester to bond both layers. death"
[The adhesive strength of Ili varies depending on the length of time for fusion. In other words, the quality of the adhesion is determined by the drying conditions and drying time, and especially when rapid drying is performed, the adhesion strength is extremely reduced. There was also a glaring weakness. On the other hand, cellulose esters have a large anti-curling effect and show good solubility in a mixed solvent of ethyl acetate and methanol, acetone, and other solvents consisting only of some carbon, hydrogen, and oxygen, so they require a halogen-containing solvent. There is a need for the development of cellulose ester adhesive technology that utilizes these solvents. A first object of the present invention is to provide a photographic material in which a cellulose ester-containing layer is firmly bonded to a polynisder film support without using a halogen-containing solvent. A second object is to provide a photographic material in which the adhesive strength of the cellulose ester layer to the polyester film support is less affected by drying conditions. After various studies by the present inventors, the object of item 1 is to have a photosensitive emulsion layer and/or an image receiving layer on one side of a polyester film support, and It has been found that this can be achieved by using a photographic material provided with a vinylidene chloride copolymer-containing layer represented by the following general formula (1) and a bagging layer containing cellulose ester in sequence. In the general formula (I) cl C1l-5, A represents a monomer unit of an ethylenically unsaturated acid or a salt thereof, and I3 represents a copolymerizable ethylenically unsaturated monomer unit. , x is 40 to 80 weight units, y is io to 35 weight units, or 2 is 5 to 30 weight units. The present invention will be explained in more detail below. The present invention provides a solution between a polyester film support and a banking layer containing hirulose ester! (It is characterized by providing an undercoat layer containing a vinylidene chloride copolymer represented by the above general formula (Il), but the copolymerizable ethylenically unsaturated acid represented by A in the above general formula (I) The monomeric unit thereof preferably has at least one carboxyl group, sulfo group, phosphor group, or a salt thereof. Among those having a salt of 1 to 2 carboxyl groups or sulfo groups or their jjk, for example, acrylic acid, methacrylic acid, itaconic acid, maleic acid, monomethyl itaconate, motuputyl itaconate, etc. , monomebuur maleate, monobutyl maleate, styrene sulfonic acid, 2-acrylic acryloyl-
Oxypropylsulfonic acid, amido-2-methylethanesulfonic acid, and alkali gold salts or ammonium salts thereof can be mentioned, and acrylic acid and itaconic acid are most preferred. Among the monomers constituting the unit A, those having one phosphono group or a salt thereof are preferred among monomers having a phosphono group or a salt thereof, such as 2-acryloyloxyethyl phosphate, 2- Acryloyloxyethoxyethyl phosphate and 2-methacryloyloxyethyl phosphate can be mentioned. Furthermore, the copolymerizable ethylenically unsaturated monomer represented by B preferably includes ethylenically unsaturated nitriles,
Examples include styrenes, ethylenically unsaturated R esters, ethylenically unsaturated acid amides, and vinyl heterocyclic compounds. For example, specific examples of the ethylenically unsaturated nitriles include acrylonitrile, methacrylonitrile, α-chloroacrylonitrile, and vinylidene cyanide. Further, specific examples of styrenes include styrene, p-methylstyrene, α-methylstyrene, p-chlorostyrene, m-methylstyrene,
, 5-dimethylstyrene, etc., and C is preferably an ethylenically unsaturated carboxylic acid ester, such as methyl acrylate, ethyl acrylate, n-butyl acrylate, and -2-acrylate. -Hydroxyethyl, 2-hydroxypropyl acrylate, benzyl acrylate, phenyl acrylate, methyl methacrylate, ethyl methacrylate, n-methacrylate
Butyl, 2-hydroxyethyl methacrylate, phenyl methacrylate, etc. can be mentioned. Further, examples of ethylenically unsaturated acid amides include acrylamide and methacrylamide, and examples of acrylamides include acrylamide 1, diacetone acrylamide, methylolacrylamide, and methylacrylamide. Examples of methacrylamides include methacrylamides such as benzylmethacrylamide. Furthermore, examples of vinyl heterocyclic compounds include N-vinylpyrrolidone, N-vinylimidazole, vinylpyridines (eg, 4-vinylpyridine, 2-vinylpyridine, etc.). Among the 4'JM units suitable for constituting the above unit B, preferred are copolymerizable 1 with ethylenically unsaturated nitriles (acrylonitrile, mecrylonitrile in %), styrenes (especially sguolene), acrylic acid Esters (especially lower alkyl esters having 1 to 4 carbon atoms, such as methyl acrylate, ethyl acrylate, acrylic acid-
2-hydroxyethyl, acrylic rJ1.0-butyl)
, methacrylic esters (especially lower alkyl esters having 1 to 4 carbon atoms, such as methyl methacrylate). In the copolymer represented by the general formula (Il), the weight % x of the vinylidene chloride Ill inhibitor is 40 to 40, as described above.
80 weight J' + 1vI, and the weight %y to the unit is 1
The weight percent of B at the rF position is 5 to 30 weight percent, and the monomers constituting the units A and B may each be 211+ or more. Next, preferred specific examples of the vinylidene chloride terpolymer represented by the above general formula (I) will be described, but the present invention is not limited thereto. (Exemplary compounds) (1) Vinylidene chloride-acrylic acid-methyl acrylate copolymer (wt% b5: 15: 20) (2) Vinylidene chloride-itaconic acid-methyl methacrylate copolymer (weight q670:15 :15) (3) Vinylidene chloride-acrylic acid-methyl acrylate copolymer (!:j1% 65:20:15) (4) Vinylidene chloride, = lidene-itaconic acid-ethyl acrylate copolymer (wt% 70: 15:15) (5) Vinylidene chloride-itaconic acid-methyl acrylate copolymer (weight ratio 65:15:20) (6) Vinylidene chloride-acrylic acid-acrylonitrile copolymer (New Year:% 60:10:30 ) (7) Vinylidene chloride-acrylic acid-□methyl acrylate copolymer (U% 50:25:25) (8) Vinylidene cyclide-acrylic acid-methyl acrylate copolymer-(i:i% 60 :25:15) (9) Vinylidene chloride-2-methacryloyloxyethyl phosphate phthyl acrylate methacrylonitrile copolymer (weight!-% 70:4:14:12) (io) Vinylidene chloride-2-acryloyl Oxyethyl phosphate butylacrylate copolymer (wt% 75; 10:, 15) (11) Vinylidene chloride-acrylic acid-acrylonitrile co-JR combination (wt% 75:15:10) (12) Vinylidene chloride-acrylic acid -Acrylonitrile copolymer (wt% 60:25:15) The vinylidene chloride copolymer according to the present invention can be produced by any polymerization method such as solution polymerization or latex polymerization. To give an example of the above polymerization method, a terpolymer consisting of 65% by weight of vinylidene chloride, 20% by weight of acrylic acid, 15% by weight of methyl acrylate, and 370% by weight of dioxane
195 g of vinylidene chloride, 60 g of acrylic acid, 45 g of methyl acrylate and 2.7 g of azobisisobutyronitrile were added to l, and after degassing with distillation for 30 minutes,
It can be obtained by polymerizing at ~65°C for 8 hours. In the above polymerization reaction, the solvent used in the polymerization reaction,
It goes without saying that the polymerization initiator, concentration, polymerization temperature, and reaction time can be easily and widely varied as necessary. The preferred composition of the vinylidene copolymer according to the present invention consists of 55-80% by weight of vinylidene chloride, 10-30% by weight of acrylic acid and 10-20% by weight of methyl acrylate. The most preferred weight ratio of poly(vinylidene chloride-no acrylic acid-→-methyl acrylate) is 65/20/15.And when the above vinylidene chloride copolymer is applied as an undercoat layer to a polyester film support, , coating amount is 0.5-20
It is preferable to provide the undercoat layer so that it is ~9/di, especially 5 to 15 my/dm. When applying an undercoat layer to both sides of a polyester film support,
It is preferable that each undercoat layer has the above coating amount. What if the chlorinated nylidene copolymer is a polymer latex obtained by emulsion polymerization? After the polymer is separated from the lit latex, it is preferably dried and then dissolved in an organic solvent. Various methods can be used to separate the polymer from the latex, but one method involves adding a non-solvent for the polymer or a solvent that hardly dissolves the polymer to the latex to precipitate and separate the polymer particles. Alternatively, there is a method in which a water-soluble inorganic salt is added to latex to precipitate and separate polymer particles. The vinylidene chloride copolymer according to the present invention dissolves well in ordinary organic solvents, so there is no need to use a halogen-containing solvent. Examples of organic solvents for 'Jt'f't applied using the vinylidene chloride copolymer of the present invention include acetone, methyl ethyl ketone, methyl isobutyl ketone, ketones such as cyclohexanone, methanol, ethanol, propatool, and butanol. Alcohols such as methyl acetate, ethyl acetate, butyl acetate, ethyl lactate, esters such as glycol acetate monoethyl ether, ethers,
Examples include glycol ether types such as glycol dimethyl ether, glycol monoethyl ether, and dioxane, and tar types (aromatic hydrocarbons) such as benzene, toluene, and xylene. The fact that the vinylidene chloride copolymer of the present invention exhibits good solubility in various solvents means that the drying rate, drying temperature, and surface temperature of the coating layer must be controlled when producing photographic materials. This means that it is not defined by the solvent and has the advantage of having a large degree of freedom. The above-mentioned vinylidene chloride copolymer is applied by dissolving it in a concentration of 1 to 30% by weight, preferably 1 to 1 oxi% in the above-mentioned organic solvent. The layer structure is such that an undercoat layer containing the cellulose ester is provided on the surface of the polyester film support, and a layer containing the cellulose ester is provided thereon. The photographic material of the present invention having such a layer structure has significantly improved adhesion between the polyester film support and the backing layer, and also exhibits excellent curling properties. Examples of the cellulose esters in the present invention include cellulose diacetate, cellulose triacetate, cellulose acetate butyrate, cellulose gropione), ethylcellulose, nitrocellulose, hydroxyglobil methylcellulose, carboxymethylcellulose, and Date phthalate, hydroxypropyl methyl cellulose phthalate, etc. can be used. Among these, especially those with acetyl content of about 3
7 to 40% monohirulose diacetate cap is recommended. Other binders such as maleic acid copolymers, polyester resins, and vinyl acetate resins can be used in combination with the layer containing cellulose Nisdel, if necessary. In addition, dyes, pigments, antistatic agents, matting agents, colloidal silica, etc. may be contained as necessary. The thickness of the cellulose ester-containing layer in the present invention is usually 0.5 to 20 μm, particularly 3-1 μm, depending on the characteristics and film thickness of the photosensitive layer coated on the opposite side of the layer.
0μ is preferred. Cellulose diacetate, which is particularly useful as a backing layer in the present invention, exhibits good solubility in organic solvents such as acetone and acetic acid: Lf, but it is particularly preferable to use a combination of these organic solvents as a mixed solvent. For example, a mixed solvent of ethyl acetate and methanol in a ratio of 4:1 is preferably used. The cellulose diacetate solution usually has a high viscosity, and is coated on the vinylidene chloride copolymer-containing layer of the present invention using a high-viscosity coating device such as an air knife or extruder coating. By selecting a low cellulose diacetate, a low viscosity coating device such as a slide hopper can also be used. In the present invention, the coating solution for the undercoat layer containing vinylidene chloride copolymer according to the present invention includes a polyester swelling agent,
Surfactant, hydrophilic organic colloid, Kyosai E matting agent,
etc. can be contained. As a swelling agent for polyester, for example, U.S. Patent No. 3.2
No. 45,937, No. 3,143,421, No. 3
Phenol, resorcinol, etc. described in No. 501.301 and No. 3,291,178 can be preferably used. The amount of these swelling agents added is 1 to 20 g per 100 ml of undercoating liquid, and 3 to 20 g per 100 ml of undercoating liquid.
12g is preferred. In addition, the surfactants described in 1. include nonionic surfactants such as saponin and alkylene oxide derivatives, anionic surfactants containing acidic groups such as argyl carboxylates and alkyl sulfonate salts, and amino acid surfactants. Amphoteric ones, such as 1, and cationic ones, such as alkylamine salts, fatty acids, and aromatic quaternary ammonium salts, can be used. Next, the polyester used as a support in the unexploded JllJ is a polyester whose main components are aromatic dibasic acid and glycol. Typical dibasic acids include terephthalic acid, inphthalic acid, and p-β-oxyethoxybenzoic acid. acids, diphenylsulfone dicarboxylic acid, diphenoxyethane dicarboxylic acid, adipic acid, sepathic acid, azelaic acid, 5-sodium sulfoisophthalic acid, diphenylene dicarboxylic acid, 2,6-naphthalene dicarboxylic acid, etc. Glycols include ethylene glycol ,
Globylene glycol, butanediol, neopentylene gelicol, ■, 4-cyclohexanediol, 1,
Examples thereof include 4-cyclosandimecnol, 1,4-hisoWjethoxybenzene, bisphenol A, diethylene glycol, polyethylene glycol, and the like. Among polyesters made of these components, polyethylene terephthalate is the most convenient from the viewpoint of availability. Polyesters that can also be used in the practice of the present invention include:
It suffices if the surface thereof is polyester, and may be one in which polyester is supported on another support. The vinylidene chloride copolymers of the present invention can be applied to polyester films by any commonly used coating technique such as dip coating, bead coating, reverse roller coating or slot coating, either as an aqueous dispersion or as a solution dissolved in an organic solvent. Can be applied. Additionally, the vinylidene chloride co-Ri combined containing layer can be applied to the polyester film during the process of manufacturing the polyester film or after the process is completed. When applied after the polyester film has been manufactured, the film can be surface treated or coated to improve adhesion to the polyester film surface. Regarding this surface treatment, for example, U.S. Pat.
, 937, ultraviolet irradiation treatment as described in U.S. Pat. No. 3,475,193, corona discharge treatment as described in U.S. Pat. No. 3,615,557, Active gas irradiation treatment described in British Patent No. 1,215,234, US Patent No. 3,590,1
In addition to the surface activation treatment such as flame treatment described in No. 07, it is also possible to form a single layer of adhesion-enhancing polymer on a polyester film and apply the vinylidene chloride copolymer-containing layer of the present invention thereon. The photographic support having a vinylidene chloride copolymer-containing layer according to the present invention is particularly useful as a film support for instant photography. These supports include, for example, U.S. Pat. Nos. 2,983,605 and 3,415,6
No. 44, No. 3,415,645, No. 3.415,
No. 646, No. 3,578,540, No. 3゜573
．． No. 043, No. 3,615,421, No. 3,59
4.164, 3,594,165, 3,6
20゜724, same No. 3,635,707, same No. 3,
No. 993,486, British Patent No. 1,269,805;
It is disclosed in the same No. 1,330,524 and the like. Polaroid's 5X-70 film (registered trademark of Polaroid), Eastman Kodak's PQ-10 film (registered trademark of Eastman Kodak), IIS 144
In the case of so-called "integrated films" such as -10 (known as Kodamatic as a registered trademark of Eastman Kodak Company) and Eastman Kodak's Eftaflex method, which is one of the new processing methods.・A backing layer made of acetylcellulose is coated on the side opposite to the side on which the photosensitive emulsion layer and/or image-receiving layer are provided to prevent curling, surface roughness, fingerprint adhesion, and scratches. However, the use of the polyester film support according to the present invention in which the vinylidene chloride copolymer-containing layer according to the present invention is disposed between the polyester film support and the backing layer made of acetyl cellulose is described in 1'-1 above. It is more preferable as a support for a body type film. When used as a support for an instant photographic film as described above, the backing layer needs to contain silica, Lc; Inorganic fine particles such as titanium dioxide may be added to one or both of the coating layers.It is also effective to form fine particles into a desired shape in order to aesthetically decorate the photographic viewing surface. Additionally, additives can be added that either do not substantially leach into the surface or are photographically substantially harmless if they do, such as dyes, pigments, antioxidants, ultraviolet absorbers, heat stabilizers, etc. It is also possible to add agents to the coating layer, such as those that do not substantially leach out or are substantially harmless in terms of photographic performance even if they ooze out.Especially when dyes for preventing light drawing are added. If a harmless dye is selected, it may be easier to manufacture and advantageous in selecting a polyester film support containing the dye and adding it to the coating layer in the manufacturing process. On the opposite side of the polyester film coated with the support, various true layers are provided depending on the purpose. Namely, a normal halogenated emulsion layer, an antihalation layer, and a surface protection layer. In addition to known layers, particularly for instant photography, such as a mordant image-receiving layer and an alkali neutralizing layer, U.S. Pat. Various photographic layers can be provided as described in Research Disclosure No. 15162 (January 1976).
It is also possible to provide each of the glaze photographic layers described in January). The mordant image-receiving layer is disclosed in JP-A-51-73440 and JP-A-50-61.
No. 228, U.S. Patent No. 3,859,096, JP-A No. 5
No. 4-74430, No. 54-124726, No. 55-
22766, etc., a mixture of an organic polymer containing tertiary nitrogen or quaternary nitrogen and a hydrophilic polymer such as gelatin or polyvinyl alcohol is mixed with water or water and an organic solvent such as acetone, methanol, etc. : Normal coating method from a mixed solution of r, tanol, etc. K l (, 1)
It is applied by Drying is usually done by fixing the gelatin with cold air and then drying with warm air, but if necessary, drying at a high temperature of 80°C to 120°C is also possible. In addition, for instant photography, a single layer of organic polymer is coated, which requires drying at a high temperature of 80° C. or higher using various organic solvents. For example, an alkaline neutralization layer consisting of a co-J3 polymer of polyacrylic acid or butyl acrylate hyacrylate, and a neutralization timing layer consisting of cellulose acetate are provided. In addition to exhibiting its characteristics, it can also be advantageously used as a conventionally known ordinary photographic film support.For example, general color film, general bear white film, printing sensitive material, and X-ray. It can be used as a support for photosensitive materials, etc.The present invention will be explained in more detail with reference to Examples below, but the present invention is not limited thereto. Exemplary compound (3) was dissolved in ethyl acetate according to the undercoating solution formulation below and applied to the surface of a polyethylene terephthalate film with a thickness of 180 μm to a coating thickness of 20 μm, followed by drying at 100° C. for 3 minutes. (Undercoat liquid formulation) On top of the film on which the undercoat layer is applied by the above method,
A cellulose diacetate solution with the following composition was applied to a film thickness of 60 mm.
It was coated with an extruder coater so as to have a micron thickness, dried at 70°C for 2 minutes, and then dried at 100°C for 3 minutes. (Cellulose diacetate coating liquid composition) The sample thus obtained was designated as Sample-1. Samples prepared in exactly the same manner as Sample-1 above were designated as Samples-■ and III, respectively, except that Exemplified Compounds (5) and (11) were used in place of Exemplified Compound (3). Further, as a comparative sample, a sample was prepared in which a layer of cellulose diacetate was directly provided on a polyethylene terephthalate film without using a layer containing the exemplary compound according to the present invention, and this sample was bound as sample-①. Each of these samples was tested for its film adhesion strength by the following method. That is, scratches are made on the surface of cellulose diacedate of each sample with a safety razor blade in the shape of a substrate to the extent that they reach the film support, and then cellophane adhesive tape is pressed onto the scratches, and then the tape is instantly removed. Peel off. In this method, if the peeled portion is 0 to less than 10%, it is graded A, if it is 10 to less than 30 inches, it is grade B, and if it is 30 to 100, it is graded 0. The results of testing each sample using the above method are shown in Table 1 below. Table 1 As is clear from the above results, the sample according to the present invention (■
-III) was found to exhibit better film adhesion than comparative sample QV). Example 2 The same layers for uncoated and color light-sensitive materials were coated on the side opposite to the cellulose diacetate of Samples (1) to (2) by a conventional method to prepare color light-sensitive materials. The curling characteristics of the above photosensitive material were then observed by the following method. That is, the above sample was cut into a rectangle of 50 vm x 2 mm, and left in a room with the center supported at 23°C and 20% RH for one day, and the degree of curl was observed using a curl scale. two. The degree of curl is the reciprocal of the number expressed by the radius of curvature m, and when the photosensitive layer is curled inward, it is plus (-I→), and when it is curled outward, it is minus (c).At the same time, As a comparison sample, a sample without a backing layer was prepared and designated as Sample V.The curl degree of each sample was tested using this method, and the results are shown in Table 2 below. From the results, sample ■ ~ B1 according to j
It was found that the sample exhibited better curl resistance than Comparative Sample ■ and was equivalent to Comparative Sample IV. However, the comparison sample O-IIV often causes the side of the backing layer to peel off during cutting, and as a product, W

[It was intolerable. In this regard, none of the samples according to the present invention suffered from peeling of the film. Example-3 The same neutralization layer, evening/imming layer, and color diffusion transfer layer were coated on the opposite side to the cellulose diacetate side of Trial I=IV by the n method, and color diffusion transfer photosensitive layer was applied. A photosensitive element of the material was created. Further, as comparative samples, samples Fj and Vl having the same constituent layers as the above photosensitive element except that no backing layer was provided were prepared. Each of the above samples was tested for curl characteristics in exactly the same manner as in Example-2. The results obtained are shown in Table 3 below. From Table 8C in Table 3, samples ① to il[ according to the present invention exhibited better curl resistance compared to comparative sample Vl, and were recognized to be equivalent to comparative sample ②. However, Comparative Sample (2) had a lot of things that caused (smelling of the layer) and flaking during cutting, and Product and No. 12 were incomplete, but the sample according to the present invention did not cause any flaking or flaking at all. There was no. Agent Yoshimi Kuwahara Procedural Amendment ++, ``1wa 58 I11 October'' 711 #!Jl+'lj'+'1<1 Mr. Kazuo Wakasugi] ・J
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hlitl::A 11'lf, 114, Vol. 6, [-Detailed description of the invention] of the specification to be amended, 17, Contents of the amendment Details of the invention #I [I 1r Explanation amended as follows do. (1) Specification fF, page 11, line 17 (1)
70:4:14:]2) Correct to J. (2) Insert the following sentence between the 7th line and the 8th line of page 12 of the book tα. [(13) Jfl vinylidene-acrylic acid-methyl acrylate copolymer (JfL 65:30:5) J(3)
Mei 210, page 16, line 17, “It depends on
'' should be changed to ``dependence - 1 - ζ) ga'' by 1. (411t7J #+II draw■ξ37'l 薼 13th line "aromatic dibasic acid" is corrected to ]-dibasic η!''. (5) Bright #III 'JF Cn 21 INN 1st line 17 r'PQ-107, 1lum"4"1"P
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Claims (1)

[Scope of Claims] A polyester film support having a photosensitive emulsion layer and/or an image-receiving layer on one side, and a vinylidene chloride copolymer represented by the following general formula (I) sequentially on the other side of the support. A photographic material comprising a containing layer and a backing layer containing cellulose ester. General formula (1) (wherein, H represents a monomer unit of a copolymerizable ethylenically unsaturated acid or its salt, B represents a copolymerizable ethylenically unsaturated monomer unit, and X represents a copolymerizable ethylenically unsaturated monomer unit. 40-80% by weight,
y is 10-35% by weight, and 2 is 5-30% by weight. )