JP2775516B2 - Silver halide photographic material - Google Patents

Description

Description: FIELD OF THE INVENTION The present invention has at least one photosensitive silver halide emulsion layer on one side of a support and has a photographically transparent magnetic recording layer. The present invention relates to a silver halide photographic light-sensitive material (hereinafter, simply referred to as a photographic light-sensitive material, a photographic light-sensitive material or a light-sensitive material) which is capable of magnetic recording, has good transportability, and has excellent scratch resistance.

[Conventional technology]

Photosensitive materials are generally cellulose triacetate,
A silver halide photographic emulsion layer and optionally an intermediate layer on one or both sides of a support such as polyethylene terephthalate, paper or paper coated on both sides with polyethylene terephthalate, directly or through an undercoat layer , A protective layer, a filter layer, an antistatic layer, an antihalation layer, and the like. These layers generally contain a hydrophilic binder such as gelatin as a constituent. As a photographic material having a photographic emulsion layer on both sides of a support, for example, there is a direct X-ray film, but most photographic materials have a photographic emulsion layer on only one side of the support. . Therefore, in the latter case, the surface on which the photographic emulsion layer is not coated,
That is, there is a support surface, which is generally referred to in the art as the "back surface" of a photographic light-sensitive material.

On the emulsion surface or the back surface of the photographic material, a magnetic recording layer that is transparent to visible light may be provided in order to magnetically record information such as sound and photographing conditions on the photographic film. is there. For example, JP-B Nos. 42-4539 and 53
JP-A-109604 and JP-A-57-6576 describe magnetic recording layers in which ultrafine particles of a ferromagnetic material are dispersed and which are transparent to visible light.

By the way, in a photographic photosensitive material having at least one transparent magnetic recording layer on one surface of a support as described above, friction occurs between a photographic film and a recording / reproducing head when recording / reproducing information by magnetism. As a result, the driveability of the film during the transport of the film in the machine is deteriorated,
Increasing the occurrence of scratches in the photosensitive material becomes a greater problem. In addition, friction in the machine causes the magnetic material to flake off and generate powder. Problems such as the occurrence of scratches in the machine due to the magnetic layer and the scratching of the head occur. In addition, due to poor sliding between the magnetic material and the head, errors such as erroneous recording and erroneous reproduction during recording and reproducing of information on the magnetic material tend to occur.

[Problems to be solved by the invention]

Therefore, an object of the present invention is to have a magnetic recording layer made of a transparent magnetic material, and without impairing its characteristics, sufficient slipperiness with respect to contact between the magnetic head and the magnetic recording layer,
An object of the present invention is to provide a photographic light-sensitive material which imparts scratch resistance to a light-sensitive material, has less malfunction during magnetic recording / reproduction, and does not involve any trouble such as deterioration over time or after development.

[Means for solving the problem]

The present invention relates to a roll-shaped silver halide photographic material having a photosensitive silver halide emulsion layer in at least one layer of a support, wherein the number of perforations per frame is 4 or less, and 1 m ² per the ferromagnetic powder comprises a cellulose derivative as agent 4 × 10 ^-3 ~4 × 10
^-1 g of at least one transparent magnetic material layer, and the outermost layer on the back surface has at least one transparent magnetic layer represented by the following general formula (I)
This was achieved by a silver halide photographic material characterized in that it contained 0.002 to 0.3 g / m ² of various kinds of slip agents.

Formula (I) R ¹¹ COOR ^{12 In the} formula, R ¹¹ represents a straight-chain aliphatic hydrocarbon group having 11 or more carbon atoms, and R ¹² represents a straight-chain aliphatic hydrocarbon group having 30 or more carbon atoms.

 Hereinafter, the present invention will be described in detail.

 First, the transparent magnetic layer used in the present invention will be described.

The ferromagnetic fine powder used in the transparent magnetic layer of the present invention includes ferromagnetic iron oxide fine powder, Co-doped ferromagnetic iron oxide fine powder, ferromagnetic chromium dioxide fine powder, ferromagnetic metal powder, and ferromagnetic alloy powder. And barium ferrite can be used.

Examples of the ferromagnetic alloy powder include a metal content of 75 wt% or more and a metal content of 80 wt% or more of at least one ferromagnetic metal or alloy (Fe, Co, Ni, Fe-Co, Fe-Ni, Co). −
Ni, Co-Fe-Ni, etc.) and other components (Al, Si, S, Sc, Ti, V, Cr, Mn, Cu, Zn,
Y, Mo, Rh, Pd, Ag, Sn, Sb, B, Ba, Ta, W, Re, A
u, Hg, Pb, P, La, Ce, Pr, Nd, Te, Bi, etc.). Further, the ferromagnetic metal component may contain a small amount of water, hydroxide, or oxide.

Methods for producing these ferromagnetic powders are known, and the ferromagnetic powder used in the present invention can also be produced according to a known method.

The shape and size of the ferromagnetic powder can be widely used without any particular limitation. The shape may be any of a needle shape, a rice grain shape, a spherical shape, a cubic shape, a plate shape and the like, but a needle shape and a plate shape are preferable in terms of electromagnetic conversion characteristics. Crystallite size, is not particularly limited specific surface area, 400 Å or less in crystallite size, preferably at least 20 m ² / g in SBET, and particularly preferably equal to or greater than 30 m ² / g. Ferromagnetic powder
The pH and the surface treatment can be used without any particular limitation (the surface may be treated with a substance containing an element such as titanium, silicon, or aluminum, or a carboxylic acid, a sulfonic acid, a sulfate, a phosphonate, a phosphate, a benzoate, or the like). It may be treated with an organic compound such as an adsorbent compound having a nitrogen-containing heterocycle such as triazole.) A preferable pH range is 5
~ 10. In the case of ferromagnetic iron oxide fine powder, it can be used without any particular limitation on the ratio of divalent iron / 3-valent iron. These magnetic recording layers are described in JP-A-47-32812.
No. 53-109604.

The content of the ferromagnetic fine powder per 1 m ^{2 of the} transparent support is 4
× 10 ^{-4 to 3} g, preferably 10 ^{-3 to 1} g, more preferably 4 ×
10 ^-3 to 4 × 10 ^-1 g.

Examples of the binder for the magnetic recording layer used in the present invention include cellulose derivatives such as nitrocellulose, cellulose acetate propionate, and cellulose acetate butyrate resin.

The thickness of the magnetic recording layer is 0.1 μ to 10 μ, preferably 0.2 μ to
5 μ, more preferably 0.5 μ to 3 μ.

The magnetic recording layer of the present invention can be provided on the back surface of the transparent support by coating or printing. It is also preferable to co-cast a solution of a polymer in which magnetized particles are dispersed and a solution of a polymer for forming a transparent support to form a transparent support having a magnetic recording layer. In this case, it is preferred that the compositions of the two polymers be substantially the same.

The magnetic recording layer may have functions of improving lubricity, controlling curl, preventing static electricity, preventing adhesion, and the like, or may be provided with another functional layer to impart these functions. If necessary, a protective layer adjacent to the magnetic recording layer may be provided to improve the scratch resistance.

The rear surface of the transparent support having the magnetic recording layer can be calendered to improve smoothness and improve the S / N ratio of a magnetic signal. In this case, after performing the calendaring process,
It is preferable to coat a photosensitive layer on a transparent support.

As a method of applying the magnetic recording layer, air doctor code, blade coat, air knife coat, squeeze coat, impregnation coat, reverse roll coat, transfer roll coat, gravure coat, kiss coat, cast coat, spray coat, etc. can be used. A method is also possible, and a detailed description thereof is described in detail in “Coating Engineering”, pages 253 to 277 (published by Showa 46.3.20.), Published by Asakura Shoten.

According to such a method, the magnetic layer coated on the support is subjected to a treatment for orienting the magnetic powder in the layer while necessary if necessary, and then the formed magnetic layer is dried.
The conveying speed of the support at this time is usually set at 10 m / min to 500 m / min, and the drying temperature is controlled at 20 ° C. to 120 ° C.
Further, the magnetic recording medium of the present invention is manufactured by performing a surface smoothing process if necessary. These are, for example,
No. 23625, Japanese Patent Publication No. 39-28368, U.S. Pat.
No., etc. Also, Japanese Patent Publication No. 41-13181
The method disclosed in the publication is considered to be a basic and important technique in this field.

 Next, the slip agent used in the present invention will be described in detail.

R ¹¹ and R ¹² represent a linear aliphatic hydrocarbon group, R ¹¹ has 11 or more carbon atoms, preferably 15 or more, and R ¹² has 2 carbon atoms.
5 or more, preferably 30 or more, particularly preferably 4
0 or more.

The amount of slip agent represented by the general formula (I) of the present invention is not particularly limited, the content thereof is preferably 0.0005~1g / m ^2, more preferably 0.001 to 0.5 g / m ^2, particularly preferably 0.002 it is a ~0.3g / m ^2.

The addition amount of the slip agent of the present invention is not particularly limited, but it is preferable that the slip agent is contained in the outermost layer on the emulsion coated surface or the back surface or in the overcoat layer thereon.

Various methods for incorporating a slip agent into the photographic material are not particularly limited, but may be dissolved in an appropriate organic solvent and added to the outermost layer coating solution, or may be overcoated. Alternatively, a slipping agent may be added to the solution or coating solution in the form of a dispersion. Examples of the solvent used include water, alcohols (methanol, ethanol, isopropanol, butanol, etc.), ketones (acetone, methyl ethyl ketone, cyclohexanone, etc.), and esters (acetic acid, formic acid, oxalic acid, maleic acid, succinic acid, etc.). Methyl, ethyl, propyl, butyl, ester, etc.), hydrocarbons (hexane, cyclohexane, etc.), halogens (methylene chloride, chloroform, carbon tetrachloride, etc.), aromatic hydrocarbons (benzene, toluene, xylene, benzyl alcohol) , Benzoic acid, anisole, etc.), amides (dimethylformamide, dimethylacetamide, N
-Methylpyrrolidone, etc.), ethers (diethyl ether, dioxane, tetrahydrofuran, etc.), glycerin, diethyl glycol, dimethyl sulfoxide and the like are preferred.

The slip agent of the present invention is described in U.S. Pat.No. 4,275,146,
JP-B-58-33541, British Patent No. 927,446,
Alternatively, it is disclosed in JP-A-55-126238 and JP-A-58-90633 and U.S. Pat. No. 3,933,516.

The slip agent of the present invention is preferably added to the outermost layer, but the binder used for the outermost layer is not particularly limited, and the binder used for the above-mentioned transparent magnetic material layer can be used. The amount of the binder at this time is preferably 0.005
A to 10 g / m ² and more preferably 0.05-5 g / m ^2. Further, the slip agent of the present invention may be contained in the same layer as the transparent magnetic material.

The outermost layer may contain a matting agent. Examples of the matting agent include silica, inorganic compounds such as strontium barium sulfate, polymethyl methacrylate, and organic polymers such as polystyrene.
m are preferred. The matting agent can be included in an optional auxiliary layer.

The following describes specific examples of the slip agent used in the present invention,
It is not limited to this.

(Specific examples of the general formula [I]) (I-1) (n ) C 11 H 23 COOC 30 H 61 (n) (I-2) (n) C 13 H 27 COOC 30 H 61 (n) (I -3) (n) C ₁₅ H ₃₁ COOC ₃₀ H ₆₁ (n) (I-4) (n) C ₁₇ H ₃₅ COOC ₃₀ H ₆₁ (n) (I-5) (n) C ₂₁ H ₄₃ COOC ₃₀ H ₆₁ (n) (I-6) (n) C ₂₇ H ₅₅ COOC ₃₀ H ₆₁ (n) (I-7) (n) C ₁₁ H ₂₃ COOC ₄₀ H ₈₁ (n) (I-8) (n ) C ₁₃ H ₂₇ COOC ₄₀ H ₈₁ (n) (I-9) (n) C ₁₅ H ₃₁ COOC ₄₀ H ₈₁ (n) (I-10) (n) C ₁₇ H ₃₅ COOC ₄₀ H ₈₁ (n) (I-11) (n) C ₂₁ H ₄₃ COOC ₄₀ H ₈₁ (n) (I-12) (n) C ₂₇ H ₅₅ COOC ₄₀ H ₈₁ (n) (I-13) (n) C ₁₁ H ₂₃ COOC ₅₀ H ₁₀₁ (n) (I-14) (n) C ₁₃ H ₂₇ COOC ₅₀ H ₁₀₁ (n) (I-15) (n) C ₁₅ H ₃₁ COOC ₅₀ H ₁₀₁ (n) (I-16) (N) C ₁₇ H ₃₅ COOC ₅₀ H ₁₀₁ (n) (I-17) (n) C ₂₇ H ₅₅ COOC ₂₈ H ₅₇ (n) Other constituent factors of the present invention are described below.

The support of the light-sensitive material used in the present invention is not particularly limited, and various plastic films can be used, and preferred are cellulose derivatives (eg, diacetyl-, triacetyl-, propionyl-, butanoyl-, acetylpropionyl-acetate). ), Polyamides, polycarbonates described in U.S. Pat. No. 3,023,101, polyesters described in JP-B-48-40414 (eg, polyethylene terephthalate, poly-1,4-cyclohexane dimethylene terephthalate, polyethylene naphthalate, etc.), polystyrene, polypropylene , Polyethylene, polysulfone, polyarylate, polyetherimide, etc., and particularly preferred are triacetyl cellulose and polyethylene terephthalate.

These supports may be added with a plasticizer and used for the purpose of imparting flexibility. In the case of cellulose esters, plasticizer-containing substances such as triphenyl phosphate, biphenyl diphenyl phosphate, and dimethyl ethyl phosphate are usually used.

These supports vary depending on the polymer type, but the thickness is
From 1 mm sheet to 20 μm thin film, it can be used properly depending on the application, but is usually 50 μm to 300 μm
Is the thickness range.

The molecular weight of these support polymers is preferably 10,000 or more, more preferably 20,000 to 800,000.

The support may contain a dye for the purpose of neutralizing the base color, preventing light piping, preventing halation, and the like.

A chemical treatment for firmly adhering a photographic layer (for example, a photosensitive silver halide emulsion layer, an intermediate layer, a filter layer, a transparent magne layer or a conductive layer of the present invention) on these supports,
Mechanical treatment, corona discharge treatment, flame treatment, UV treatment,
After a surface activation treatment such as a high-frequency treatment, a glow discharge treatment, an active plasma treatment, a laser treatment, a mixed acid treatment, an ozone oxidation treatment, etc., a photographic emulsion may be directly applied to obtain an adhesive force, or these surfaces may be temporarily obtained. A method in which an undercoat layer is provided after treatment or without surface treatment, and a photographic emulsion layer is coated thereon.

At that time, for the cellulose derivative, a single layer of a gelatin solution dispersed in a methylene chloride / ketone / alcohol mixed organic solvent is applied to provide an undercoat layer.

Gelatin hardeners include chromium salts (chrome alum, etc.), aldehydes (formaldehyde, glutaraldehyde, etc.), isocyanates, active halogen compounds (2,4-dichloro-6-hydroxy-s-triazine, etc.), epichlorohydrin resins And the like. These undercoat liquids can contain various additives as necessary. Examples include surfactants, antistatic agents, dyes for coloring antihalation agents, pigments, auxiliary auxiliaries, antifoggants and the like. When the undercoat liquid of the present invention is used, an etching agent such as resorcin, chloral hydrate, chlorophenol and the like can be contained in the undercoat liquid.

In the underlayer of the present invention, inorganic fine particles such as SiO ₂ and TiO ₂ or polymethyl methacrylate copolymer fine particles (1 to
10 μm) as a matting agent.

The undercoating liquid according to the present invention may be prepared by a well-known coating method such as dip coating, air knife coating, curtain coating, roller coating, wire bar coating, gravure coating, or U.S. Pat. 68
It can be applied by an extrusion coating method using a hopper described in the specification of 1,294. U.S. Pat.Nos. 2,761,791, 3,508,947, 2,94
Two or more layers can be simultaneously coated by the method described in JP-A Nos. 1,898 and 3,526,528, "Coating Engineering", Yuji Harazaki, page 253 (published by Asakura Shoten in 1973).

In particular, color reversal films and color negative films can be mentioned as typical examples of preferred silver halide color photographic light-sensitive materials in the present invention. In particular, a color negative film for general use is a preferred color photographic light-sensitive material.

 Hereinafter, a general-purpose color negative film will be described.

The light-sensitive material of the present invention comprises at least one of a blue-sensitive layer, a green-sensitive layer, and a red-sensitive layer of a silver halide emulsion layer on a support.
The number of layers and the order of the silver halide emulsion layer and the non-photosensitive layer are not particularly limited as long as the layers are provided. A typical example is a silver halide photographic light-sensitive material having at least one light-sensitive layer comprising a plurality of silver halide emulsion layers having substantially the same color sensitivity but different sensitivities on a support. The light-sensitive layer is a unit light-sensitive layer having color sensitivity to any of blue light, green light, and red light, and in a multilayer silver halide color photographic light-sensitive material, generally, The arrangement is such that a red-sensitive layer, a green-sensitive layer, and a blue-sensitive layer are arranged in this order from the support side. However, the order of installation may be reversed depending on the purpose, or the order of installation may be such that different photosensitive layers are sandwiched between layers of the same color sensitivity.

Known photographic additives that can be used in the present invention are also described in the above two Research Disclosures, and the relevant portions are shown in the following table.

Next, as the photosensitive material of the present invention, a preferred form of the photosensitive material of the present invention is a roll-shaped film capable of easily inputting a signal to the transparent magnetic recording layer when the film is transported by a camera or a printer. In this roll-shaped film, the area of one frame of the image exposure unit is set to be 350 mm ² or more and 1200 mm ² or less, and the magnetic information recordable space is 15 mm of the area of one frame of the image exposure unit.
% Or more is preferable. Specifically, it is preferable to make the number of perforations per screen smaller than 135 formats. It is particularly preferred that the number of perforations per frame be four or less.

Information can also be optically input to the magnetic information recordable space using a light-emitting body such as an LED. It is also preferable to input magnetic information and optical information in the space in an overlapping manner. The magnetic recording format is open to the world 90-0420
Preferably, the method disclosed in No. 5 is followed.

When the light-sensitive material of the present invention is used in the form of a roll, it is preferable that the light-sensitive material is housed in a cartridge. The most common cartridge is the current 135 format patrone. Other cartridges proposed in the following patents can also be used. (Actual opening 58-67329
No., JP-A-58-181035, JP-A-58-182634, Shokai
No. 58-195236, U.S. Pat.No. 4,221,479, Japanese Patent Application No. 63-57785
Japanese Patent Application No. 63-183344, Japanese Patent Application No. 63-325638, Japanese Patent Application No. 1-21862, Japanese Patent Application No. 1-25622, Japanese Patent Application No. 1-30246
No., Japanese Patent Application No. 1-20222, Japanese Patent Application No. 1-21863, Japanese Patent Application No. 1
No. -37181, Japanese Patent Application No. 1-333108, Japanese Patent Application No. 1-85198,
Japanese Patent Application No. Hei 1-172595, Japanese Patent Application Hei 1-172594, Japanese Patent Application Hei 1
No. 172593, U.S. Pat. No. 4,846,418, U.S. Pat. No. 4,848,693, and U.S. Pat. (Japanese Patent Application No. 1-214895
No.) Next, the cartridge used in the present invention contains a synthetic plastic as a main component.

In molding the plastics of the present invention, a plasticizer is mixed with the plastics as necessary. Typical examples of the plasticizer include trioctyl phosphate, tributyl phosphate, dibutyl phthalate, diethyl sebacate, methyl amyl ketone, nitrobenzene, γ-valerolactone, di-n-octyl succinate, bromonaphthalene, and butyl palmitate. It is something.

Specific examples of the plastics material used in the present invention are shown below, but are not limited thereto.

Specific examples include polystyrene, polyethylene, polypropylene, polymonochlorotrifluoroethylene, vinylidene chloride resin, vinyl chloride resin, vinyl chloride-vinyl acetate copolymer resin, acrylonitrile-butadiene-styrene copolymer resin, methyl methacryl resin, vinyl formal resin, There are vinyl butyral resin, polyethylene terephthalate, Teflon, nylon, phenol resin, melamine resin and the like.

Particularly preferred plastic materials for the present invention are polystyrene, polyethylene, polypropylene and the like.

Further, the cartridge of the present invention may contain various antistatic agents. Although the antistatic agent is not particularly limited, carbon black, metal oxide particles, nonions, anions,
A cation, a betaine-based surfactant, a nonion, an anion, a cation and a betaine polymer can be preferably used. These antistatic cartridges are described in JP-A Nos. 1-312537 and 1-312538.

Usually, the cartridge is manufactured using a plastic into which carbon black, a pigment, or the like is kneaded to impart light-shielding properties.

Furthermore, the shape may be the same as the current size, but the diameter of the cartridge at present 25 m / m is 22 m / m or less, preferably 20 m / m or less.
It is effective to reduce the size of the camera if it is less than m / m or more than 14 m / m. Further, in the current cartridge, the leading end of the spool on the side that engages with the film drive unit of the camera is protruding, which is an obstacle to miniaturization of the camera. Therefore, it is preferable to eliminate this portion. As a result, the volume of the cartridge, which is currently about 35 cm ³ , can be reduced. The cartridge case capacity is 30
cm ³ or less preferably it is preferable that the 25 cm ³ or less and more preferably 20 cm ³ or less. Weight of plastic used for cartridge and cartridge case is 1g or more 25
g or less, preferably 5 g or more and 15 g or less.

The ratio of the volume of the cartridge case to the plastic used for the cartridge and the cartridge case is 4
-0.7, preferably 3-1.

In the case of the cartridge incorporating the 135 color photosensitive material in the present invention, the total weight of the plastic used for the cartridge and the cartridge case is usually 1 g or more and 25 g or less,
Preferably it is 5 g or more and 15 g or less.

Next, the form of the cartridge incorporating the color photosensitive material described in the present invention will be described.

The form of the cartridge of the present invention is not particularly limited, but is preferably compatible with a commercially available camera. Furthermore, the present invention may be applied to a new camera compatible with a cartridge incorporating the color photographic material of the present invention. Examples of these specific cartridges are given in the first section.
FIGS. 2 to 4 show the internal structure, FIGS. 5A and 5B show the magnetic recording tracks of the film, and FIG. 6 shows the layer structure.

Next, examples of a layer configuration considered to be particularly effective in the present invention will be described. The surface on which the transparent magnetic recording layer is provided may be an emulsion surface or a surface opposite to the emulsion surface (back surface). However, considering the effect on photographic performance, it is preferable to provide the transparent magnetic recording layer on the back surface. However, this does not apply to the case where an emulsion layer is provided on both surfaces such as an X-ray film.

As a layer attached to the back surface, a transparent magnetic recording layer,
There are an antistatic layer and a surface layer. Of these three layers, one or more layers may have two or more functions.

From the above, layer configurations as shown in FIGS. 6A to 6H can be considered. However, the present invention is not limited to these layer configurations.

(FIG. 6-a) An antistatic layer is provided on a support on which a magnetic recording layer is co-cast, and a surface layer is provided thereon.
This antistatic layer is desirably a cationic polymer or an organic antistatic agent.

(FIG. 6-b) An antistatic layer having the function of a surface layer is provided on the same support as in (FIG. 6-a).
This antistatic property can be provided by dispersing a transparent inorganic antistatic agent in a binder.

(FIG. 6-c) An antistatic layer, a transparent magnetic layer, and a surface layer are provided on a normal support in this order. It is desirable to use a gelatin binder for the transparent magnetic recording layer from the viewpoint of curl compensation. As the antistatic layer (see FIG. 6-
As in b), inorganic antistatic agents are preferred.

(FIG. 6-d) A transparent magnetic layer, an antistatic layer, and a surface layer are provided on a normal support in this order. Transparent magnetic layer,
The antistatic layer preferably has the same shape as that shown in FIG. 6-c.

(FIG. 6-e) A magnetic recording layer having antistatic properties is provided on a support, and a surface layer is provided thereon. The magnetic recording layer having this antistatic property can be obtained by dispersing a ferromagnetic powder and a transparent inorganic antistatic agent in a binder.

(FIG. 6-f) A transparent magnetic recording layer is provided on a support, and an antistatic layer having slip resistance and scratch resistance is provided thereon. The transparent magnetic recording layer preferably uses a gelatin binder as shown in FIG. 6-c, and the antistatic layer preferably uses an inorganic antistatic agent as in (FIG. 6-b).

(FIG. 6-g) An antistatic layer is provided on a support, and a sliding, scratch-resistant transparent magnetic layer is provided thereon. The antistatic layer is preferably an inorganic antistatic agent as in (FIG. 6-b). The transparent magnetic layer is preferably made of a gelatin binder.

(FIG. 6-f) A layer having the functions of a surface layer, a transparent magnetic layer and an antistatic layer is provided on a support.

Among them, particularly preferred is the layer configuration of FIG. 6-a. 6-b and 6-g are also preferable. It is also preferable to bring the antistatic layer shown in FIG. 6-g below the emulsion surface.

(Examples) Hereinafter, the present invention will be described in more detail by way of examples, but the present invention is not limited thereto.

Example 1 1-1) Preparation of base A cellulose triacetate dope and a cellulose triacetate dope in which γ · Fe ₂ O ₃ (specific surface area: 25 m ² / g, manufactured by Pfizer Inc. (USA)) were dispersed were co-cast. A film base having a total thickness of 122 μm having a transparent magnetic recording layer having a thickness of 2 μm was prepared. The coating amount of γ · Fe ₂ O ₃ was 0.14 g / m ² .

This base was provided with a back layer having the following composition to provide a base for a photosensitive material. The surface having the magnetic recording layer was used as a back layer.

Back layer composition First layer Cellulose triacetate 0.1 g / m ² Ethylene glycol 0.08 g / m ² Second layer Cellulose diacetate 0.32 g / m ² Aerosil 0.02〃 Slip agent Listed in Table 1 The coercive force of this base is 510 Oe The squareness ratio is 0.73,
It was confirmed that the signal / input method disclosed in WO 90-04205 was possible.

1-2) Preparation of photosensitive material After performing discharge treatment on the opposite side of the back layer of the undercoated cellulose triacetate film support, each layer having the following composition is coated in multiple layers, and a multilayer color photosensitive material is used. A sample was made.

(Composition of photosensitive layer) A photosensitive layer was prepared in exactly the same manner as the photosensitive layer described in Example 1 of JP-A-2-93641.

However, a fluorine-containing surfactant was added to the second protective layer as shown in Table 1.

Processing of Sample The sample was cut into a 135 mm wide film of 24 shots in the format shown in FIG.

 The development of these samples was performed as follows.

 Color development 3 minutes 15 seconds Bleaching 6 minutes 30 seconds Rinse 2 minutes 10 seconds Fixed 4 minutes 20 seconds Rinse 3 minutes 15 seconds Stabilization 1 minute 05 seconds The processing solutions used for each process are as follows Was.

Color developer Diethylenetriaminepentaacetic acid 1.0 g 1-hydroxyethylidene-1,1-diphosphonic acid 2.0 g Sodium sulfite 4.0 g Potassium carbonate 30.0 g Potassium bromide 1.4 g Potassium iodide 1.3 mg Hydroxylamine sulfate 2.4 g 4- (N- Ethyl-N-β-hydroxyethylamino) -2-methylaniline sulfate 4.5 g Add water 1.0 pH 10.0 Bleaching solution Ferric ammonium ethylenediaminetetraacetate 100.0
g Ethylenediaminetetraacetic acid disodium salt 10.0 g Ammonium bromide 150.0 g Ammonium nitrate 10.0 g Add water 1.0 pH6.0 Fixer Ethylenediaminetetraacetic acid disodium salt 1.0 g Sodium sulfite 4.0 g Ammonium thiosulfate aqueous solution (70%) 175.0 ml Bisulfite Sodium 4.6 g Add water 1.0 pH 6.6 Stabilizer Formalin (40%) 2.0 ml Polyoxyethylene-p-monononylphenyl ether (average degree of polymerization 10) 0.3 g Add water 1.0 Then evaluate these samples Is described.

Evaluation of slip characteristics (1-1) Measurement of static friction coefficient After the sample was conditioned for 2 hours at a temperature of 25 ° C and a humidity of 60% RH, the HE
It was measured with an IDON-10 static friction coefficient measuring machine using a 5 mmφ stainless steel ball. The smaller the value, the better the slipperiness.

(1-2) Measurement of dynamic friction coefficient The sample was conditioned at a temperature of 25 ° C and a humidity of 60% RH for 2 hours.
Using an IDON-14 dynamic friction coefficient measuring machine, the measurement was performed at a load of 5 mmφ stainless steel ball of 100 g and a friction speed of 60 cm / min. The smaller the value, the better the slipperiness.

Scratch resistance evaluation Apply a continuous load to the sample back surface (surface not coated with photosensitive material) before development with a dia needle with a tip of 0.025 mm.R vertically and apply a continuous load to the sample back surface at a speed of 60 cm / min. Scratch. (25 ° C., 60% RH) The sample after being scratched was placed on a Schaukasten, and the load at which scratches began to be seen through transmission was defined as the scratching strength. The higher the value, the better.

Transmittance test Using a sample obtained by developing and fixing an unexposed sample, the total light transmittance was measured. The sample 1-1 (control) was defined as 100, and the relative value thereof was shown in Table 1 as a relative transmittance. The total light transmittance is ASTM.
It was measured according to D-1003.

Evaluation of output error of magnetic recording According to the signal input method disclosed in the above-mentioned world publication No. 90-04205, a light-sensitive material magnetically input from the back side is measured by a magnetic head.
The output operation was performed 0 times, and the number of errors was shown. The output error of the photosensitive material which was subjected to development processing after magnetic input was also evaluated.

Comparative compound A (described in JP-A-50-117,414) As can be seen from Table 1, the control sample (No. 1-1) in which the slip agent of the present invention was not used had poor sliding properties and was significantly inferior in terms of scratch resistance and magnetic output error.

On the other hand, the samples 1-2 to 1-5 of the present invention are excellent in all respects of slip characteristics, scratch resistance, permeability, adhesion and magnetic output error, and have no magnetic output error. there were.

On the other hand, Comparative Samples 1-12 and 1-13 using the silicone-based Comparative Compound A were significantly inferior in scratch resistance, adhesion, and magnetic output error.

As described above, the present invention is remarkably superior to the conventional technology.

(Effect of the Invention) The photographic material containing the transparent magnetic material layer and the slipping agent of the present invention is transparent in photographic properties and excellent in slipperiness, and has almost no error at the time of magnetic output as well as scratch resistance and adhesion. The photographic material had excellent information recording properties.

[Brief description of the drawings]

FIG. 1 is a perspective view of a photographic film cartridge according to the present invention, FIG. 2 is a plan view showing a state of a leading end portion of the photographic film, FIG. 3 is a sectional view of the cartridge, and FIG. FIG. Fig. 5 3 is a plan and sectional view of a magnetic recording track layer. FIG. 6 (a to h) shows the layer structure. [Description of Signs] 1 ... Photo film patrone 2 ... Spool 3 ... Photo film 4 ... Patrone body 5 ... Film drawer port 7 ... Perforation 8 ... Protrusion 9 ... Protrusion 10 ... Hole 11 Notch 12 Film passage 13 Step 14 Emulsion constituent layer 15 Support 16 Transparent magnetic layer 17 Antistatic layer + scratch-resistant layer + lubricating layer 18 1 Frame length 19 perforation t-0 to t-1 magnetic recording tracks f00 to f29 magnetic recording tracks S surface layer B support AS antistatic layer Em emulsion layer M Transparent magnetic layer

Claims (1)

(57) [Claims] 1. A roll-shaped silver halide photographic material having a photosensitive silver halide emulsion layer in at least one layer of a support, wherein the number of perforations per frame is 4 or less, and per 1 m ² of the ferromagnetic powder comprises a cellulose derivative as a binder 4 × 10 ^-3 ~4 × 10
^-1 g of at least one transparent magnetic material layer, and the outermost layer on the back surface has at least one transparent magnetic layer represented by the following general formula (I)
A silver halide photographic light-sensitive material containing 0.002 to 0.3 g / m ^{2 of} different kinds of slip agents. Formula (I) R ¹¹ COOR ^{12 In the} formula, R ¹¹ represents a straight-chain aliphatic hydrocarbon group having 11 or more carbon atoms, and R ¹² represents a straight-chain aliphatic hydrocarbon group having 30 or more carbon atoms.