JPH04124631A - Silver halide photosensitive material including magnetic recording layer - Google Patents

Abstract

PURPOSE:To offer a silver halide photosensitive material whose magnetic recording layer does not affect the optical density of a picture part at all by providing two magnetic recording layers in stripes on both sides of a picture and using an optically transparent layer as at least one of the striped magnetic recording layers. CONSTITUTION:The striped magnetic recording layers are provided outside and across the picture. At least one of the two magnetic recording layers which are provided in stripes is preferably the optically substantially transparent layer. The transparent striped magnetic recording layer contains preferably a >=5X10<-3> - 3g/1m<2> magnetic material. This transparent striped magnetic recording layer enables both magnetic recording and optical recording. This striped magnetic recording layers are used for magnetic recording of relatively low density. On this magnetic recording layer, information on the number of frames of photographic pictures, photography dates, user's memorandums, etc., can be recorded optically.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to a silver halide photographic material.

More specifically, the present invention relates to a silver halide photographic material having a magnetic recording layer having extremely excellent magnetic recording properties.

(Prior art and its problems) Conventional silver halide photographic materials (hereinafter abbreviated as photosensitive materials) are
It is almost impossible to input various information (for example, date of photography, weather, magnification ratio, number of prints, etc.) when photographing with a camera, and only the date and month of photography can be input optically. Furthermore, it is completely impossible to input information to the photosensitive material itself during printing, which is a major obstacle to achieving high speed and cost reduction.

Inputting various information to the photosensitive material is a very important means for improving camera operability and making it simpler in the future. The magnetic recording method is important as a means of inputting information because it allows arbitrary input and is inexpensive.
It has been studied for a long time. For example, by appropriately selecting the amount and size of the magnetic particles contained in the magnetic recording layer, it is possible to create a magnetic recording layer that has the necessary transparency for the photosensitive material at the time of photographing, and that does not adversely affect the granularity. Providing a transparent support on the back surface of a photosensitive material is disclosed in US Pat. No. 3782.9.
．． No. 17, No. 4,279,945, No. 4,302,5
It is described in No. 23, etc.

In addition, the signal input method to this magnetic recording layer was released to the world in 1990-
No. 4205, No. 90-04212, etc.

By providing these magnetic recording layers and input/output, it is now possible to incorporate various kinds of information into the photosensitive material, which was previously difficult.
- It is now possible to input and output information such as photographing conditions such as enlargement ratio, number of reprints, areas to be zoomed, development of messages, printing conditions, etc. to the magnetic layer of the photosensitive material. Furthermore,
It has the potential to be applied as a signal and output means for directly outputting images from television/video images and photosensitive materials.

Japanese Patent Publication No. 57-6576 and Japanese Patent Publication No. 53109.604 concerning sensitive materials having a transparent magnetic recording layer
The magnetic recording layer using gamma ferric oxide, as used in this issue, had low transmittance to light in the visible range.

When a transparent magnetic recording layer is provided on the hack surface of the sensitive material,
No matter how much the amount of magnetic material is reduced, there are disadvantages in that the transmittance of the screen portion to visible light decreases, the degree of 1.\\Isness increases, and sharpness deteriorates. Furthermore, it is extremely difficult to produce a material with completely flat optical density spectroscopically. In other words, although the magnetic recording layer is transparent, it appears colored. This makes it impossible to apply this system to reversal films, for example.

Furthermore, if the amount of magnetic material is reduced in order to increase the transmittance to visible light, the magnetic output decreases and errors are likely to occur when reading recorded information.

As described above, providing a magnetic recording layer over the entire back surface is disadvantageous in terms of both optical and magnetic properties.

One way to solve this problem is to place a magnetic recording layer in stripes outside the screen, as is conventionally used for movie soundtracks. However, if striped magnetic recording layers are provided on both sides of the screen, the part that was used to optically record the number of frames on the screen in the 35 format will be lost. Although it is possible to provide a striped magnetic recording layer on one side of the screen, this has the disadvantage that the amount of information that can be recorded is limited.

has a magnetic recording layer capable of recording a sufficient amount of information, and
It has been desired to develop a method that fully satisfies both optical and magnetic properties.

(Problems to be Solved by the Invention) Therefore, an object of the present invention is to provide excellent magnetic properties for recording information at the time of photographing, information to be processed in a laboratory after photography, etc. on a silver halide photographic light-sensitive material. It is an object of the present invention to provide a silver halide photographic light-sensitive material which is provided with a magnetic recording layer having the above-mentioned properties and at the same time has a magnetic recording layer which does not deteriorate its optical properties at all.

(Means for Solving the Problems) An object of the present invention is to provide a silver halide photographic material having at least one light-sensitive silver halide emulsion layer on a film support. Two magnetic recording layers are provided in a stripe pattern on both sides of the
This was achieved using a silver halide photographic material characterized in that at least one of the striped magnetic recording layers is optically transparent.

The great invention will be explained in detail below.

Ferromagnetic powders commonly used as magnetic materials include ferromagnetic iron oxide fine powder, Co-containing ferromagnetic iron oxide fine powder, ferromagnetic chromium dioxide fine powder, ferromagnetic alloy powder, barium ferrite powder, etc. There is. The acicular ratio of ferromagnetic iron oxide and chromium dioxide is about 2/1 to 20/1, preferably 5 layers or more, and the average length is 0. A range of approximately 2 to 2.0 μm is effective. Ferromagnetic alloy powder has a metal content of 75wt%
80 wt% or more of the metal content is ferromagnetic metal (i.e., Fe, Co, Ni, Fe-Ni, C).

Ni, Fe-Co-Nj) with a major axis of approximately 1. Particles with an OL of 1 m or less. Any magnetic material may be used as the magnetic material used in the present invention.

Furthermore, the magnetic recording layer may be provided by vapor deposition of a ferromagnetic material such as those described above instead of ferromagnetic fine powder.

The binder for the magnetic recording layer used in the present invention includes known thermoplastic resins, thermosetting resins, radiation-curable resins, reactive resins, and the like, which have been conventionally used as binders for magnetic recording media.
and mixtures thereof, hydrophilic binders such as seratin can be used.

The above resin (7) Tg is -40'C to 150'C, ffi
The weight average molecule I is 10,000 to 300,000, preferably 10,000 to 10,000.

Examples of the thermoplastic resin include vinyl chloride/vinyl acetate copolymer, vinyl chloride, vinyl acetate and vinyl alcohol,
Copolymers with maleic acid and/or acrylic acid, vinyl copolymers such as vinyl chloride/vinylidene chloride copolymers, vinyl chloride/acrylonitrile copolymers, ethylene/vinyl acetate copolymers, nitrocellulose, cellulose acetate Propionate, cellulose derivatives such as cellulose acetate butyrate resin, acrylic resin,
Rubber resins such as polyvinyl acetal resin, polyvinyl butyral resin, polyester polyurethane resin, polyether polyurethane, polycarbonate polyurethane resin, polyester resin, polyether resin, polyamide resin, amino resin, styrene butadiene resin, butadiene acrylonitrile resin, silicone resin Examples include resins and fluororesins.

Among these, vinyl chloride resin is preferred because it has high dispersibility of ferromagnetic fine powder.

Further, as the radiation-curable resin, a resin obtained by bonding a group having a carbon-carbon unsaturated bond as a radiation-curable functional group to the above-mentioned thermoplastic resin is used.

Preferred functional groups include acryloyl and methacryloyl groups.

In the bonding molecules listed above, polar groups (epoxy groups, C02
M, ○H, NR,, NR, M, 308M, ○SOI
M, P○1M2, ○P Os M2, provided that M is hydrogen, an alkali metal or ammonium, and when a plurality of M's are present in one group, they may be different from each other.

R is hydrogen or an alkyl group. ) may be introduced.

The polymeric binders listed above may be used alone or in combination, and can be cured by adding a known isocyanate-based crosslinking agent and/or a radiation-curable vinyl monomer.

In addition, examples of hydrophilic binders include Research Disclosure No. 17643.26, and Research Disclosure No. 17643.26;
18716.651, and exemplifies water-soluble polymers, cellulose esters, latex polymers, water-soluble polyesters, and the like. Water-soluble polymers include gelatin, gelatin derivatives, casein, agar,
Sodium alginate, starch, polyvinyl alcohol,
These include polyacrylic acid copolymers and maleic anhydride copolymers, and cellulose esters include carboxyl methyl cellulose and hydroxyethyl cellulose.

Latex polymers include vinyl chloride-containing copolymers,
These include anhydrous vinylidene-containing copolymers, acrylic ester-containing copolymers, vinyl acetate-containing copolymers, butadiene-containing copolymers, and the like. Among these, gelatin is most preferred. Further, gelatin derivatives and the like may be used in combination with gelatin.

As the gelatin, any of so-called lime-treated gelatin, acid-treated gelatin, enzyme-treated gelatin, gelatin derivatives, modified gelatin, etc. can be used, and among them, lime-treated gelatin and acid-treated gelatin are preferably used.

Preferably, the magnetic recording layer containing gelatin is hardened.

Hardeners that can be used in the magnetic recording layer include, for example, aldehyde compounds such as homamaldehyde and glutaraldehyde, ketone compounds such as diacetyl and cyclopentanedione, bis(2-chloroethyl urea),
2-Hydroxy-4゜6-dichloro-1,3,5-triazine, and others U.S. Patent No. 3,288.775, U.S. Patent No. 2.732.303, British Patent No. 974,723
Compounds containing reactive halogens described in No. 1 167.207, divinyl sulfone, 5-acetyl-1,3-diacryloylhexahydro-1,3
, 5-) Reazine, et al. U.S. Patent No. 3.635,7
No. 18, No. 3,232゜763, British Patent No. 994,
869, etc., N-hydroxymethylphthalimide, as well as N-hydroxymethylphthalimide, which is described in U.S. Pat. methylol compound,
Isocyanates described in U.S. Patent No. 3,103,437 etc., aziridine compounds described in U.S. Patent No. 3.017.280, U.S. Patent No. 2,983,811 etc., U.S. Patent No. 2゜725.294@, 2,72
Examples thereof include acid derivatives described in U.S. Pat. No. 5,295, etc., epoxy compounds described in U.S. Pat. Alternatively, as a hardening agent for inorganic compounds, chrome light pan, zirconium sulfate, Japanese Patent Publication Nos. 12853/1982, 32699/1982, Belgian Patent No. 825.726, 225148/1980,
5]-126125, Special Publication No. 58-50699,
JP 52-54427, U.S. Patent No. 3,321,31
It is stated in No. 3, etc. Examples include carboxyl group-activated hardeners.

The amount of hardening agent used is usually 0.01 per dry gelatin.
-30% by weight, preferably 0.05-20% by weight.

The thickness of the magnetic recording layer is 0.1 to 10 μm, preferably 0.
．． It is 2 to 5 μm, more preferably 0.5 to 3 μm.

The magnetic recording layer of the present invention may be provided on the same surface as the silver halide emulsion layer of the photosensitive material, or may be provided on the opposite surface.

Preferably, it is provided on the opposite side of the silver halide emulsion layer.

The magnetic recording layer can be provided in stripes by coating or printing. Alternatively, it may be provided by a vapor deposition method, a heat fusion method, a tape bonding method, or the like. There are many methods for stripe coating, such as doctor coat, extrusion coat, slide coat, roller coat, and gravure coat, but in order to perform multi-striped coating, it is necessary to use multiple coating heads. You can do it in series. Specific methods for stripe coating include, for example, Japanese Patent Application Laid-open Nos. 48-25503, 48-25504, and 4
No. 8-98803, No. 50-138037, No. 52-
No. 15533, No. 51-3208, No. 51-6239
No. 51-65606, No. 51-140703,
Special Publication No. 29-422], U.S. Patent No. 3,062,18
No. 1, 3.227,165 can be referred to.

Alternatively, a support having a magnetic recording layer may be created by co-casting a solution of a polymer in which magnetic particles are dispersed and a solution of a polymer for forming the support in a stripe shape. in this case,
Preferably, the polymer in which the magnetic particles are dispersed is substantially the same as the polymer from which the support is made.

Striped magnetic recording layers are provided outside the screen on both sides of the screen.

It is preferable that at least one of the two striped magnetic recording layers is optically substantially transparent. The term "optically transparent" as used herein means that when characters are inputted optically using an LED or the like, the characters can be read by transmitted light. The content of magnetic material in the transparent striped magnetic recording layer is lrj! 5×10 −3 to 3 g is preferable, more preferably 0. O]~0.5g. This transparent striped magnetic recording layer allows both magnetic and optical recording. This striped magnetic recording layer is used for relatively low density magnetic recording. On this magnetic recording layer, it is possible to optically record information such as the number of frames taken, the date of photographing, and user notes. Preferably, the optical record primarily records information that is available to the user.

One of the two striped magnetic recording layers may or may not be optically transparent. in this case,
This striped magnetic recording layer is preferably capable of relatively high-density magnetic recording. The content of the magnetic material in this striped magnetic recording layer is preferably 0.05 g or more per layer. More preferably, it is 0.1 to 25 g.

The two striped magnetic recording layers are used to magnetically record information during imaging, information used during laboratory processing, and the like. For example, the information includes light source information such as the presence or absence of a strobe, information such as screen designation and number of reprints, and information such as zoom position and magnification. Furthermore, television,
'The striped magnetic recording layer can be used to record signals when outputting images directly from a sensitive material for video images and information when used as an output means.

The magnetic recording layer has improved lubricity, anti-static properties, anti-adhesion, and anti-friction properties.
It may also have functions such as improving wear characteristics, or it may provide these functions by providing another functional layer.

If necessary, a protective layer may be provided adjacent to the magnetic recording layer to improve scratch resistance.

Additionally, a transparent polymer layer that does not contain magnetic material may be provided between the striped magnetic recording layers to eliminate the level difference caused by the magnetic recording layer. It's okay.

After providing the magnetic recording layer, it is also possible to perform a calendering process on this layer to improve smoothness and improve the S/N ratio of the magnetic output. In this case, it is preferable to apply a silver halide photosensitive layer after calendering.

The film support in the present invention is not particularly limited, but various plastic films can be used, and preferred ones include cellulose derivatives (e.g., diacetyl, triacetyl, propionyl, butanoyl).
, acetylpropionyl acetate, etc.), polyamides, polycarbonates described in U.S. Pat.
4-cyclohexane dimethylene terephthalate, polyethylene], 2-diphenoxyethane=4.4'-dicarboxylate, polybutylene terephthalate, polyethylene naphthalate), polystyrene, polypropylene,
polyethylene, polymethylpentene, polysulfur,
These include polyether sulfone, polyarylate, polyetherimide, etc., and particularly preferred are triacetyl cellulose and polyethylene terefurylate.

These supports have plasticizers added to them for the purpose of imparting flexibility, etc.
Sometimes used. Especially for cellulose esters,
Plasticizer-containing materials such as triphenyl phosphate, biphenyl diphenyl phosphate, dimethyl ethyl phosphate are commonly used.

These supports vary depending on the type of polymer, but the thickness is 1
It can be used depending on the purpose, ranging from sheets with a diameter of about mm to thin films with a thickness of about 20 μm, but 50 μm is commonly used.
The thickness ranges from m to 300 μm.

The molecular weight of these support polymers is preferably 10,000 or more, more preferably 20,000 to 80,000.

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

Photographic layers (e.g., photosensitive silver halide emulsion layer, intermediate layer, filter layer, magnetic recording layer, conductive m
) to ensure strong adhesion, chemical treatment, mechanical treatment,
Corona discharge treatment, flame treatment, ultraviolet treatment, high frequency treatment,
After surface activation treatment such as glow discharge treatment, activated plasma treatment, laser treatment, mixed acid treatment, or ozone oxidation treatment, it is possible to apply photographic emulsion directly to obtain adhesive strength, or to obtain adhesion after these surface treatments. After that, or without surface treatment, an undercoat layer may be provided and a photographic emulsion layer may be applied thereon.

For cellulose derivatives, a single layer of a gelatin solution dispersed in a methylene chloride/ketone/alcohol mixed organic solvent is applied to provide an undercoat layer.

As the gelatin hardening agent, the above-mentioned hardening agents can be used.

The undercoat liquid can contain various additives as necessary. Examples include surfactants, antistatic agents, antihalation agents, coloring dyes, pigments, coating aids, and antifogging agents. When using the undercoat solution of the present invention, an etching agent such as resorcinol, chloral hydrate, chlorophenol, etc. can also be included in the undercoat solution.

The subbing layer of the present invention contains inorganic fine particles such as Sj○*, TiC, or polymethyl methacrylate copolymer fine particles (
1 to 10 μm) as a matting agent.

The undercoat liquid related to the present invention can be applied using generally well-known coating methods such as dip coating method, air knife coating method,
Curtain foot method, roller coating method, wire barcode method, gravure coating method, or U.S. Patent No. 2,88
Coating can be carried out by the extrusion coating method using a hopper as described in No. 1.294.

As appropriate, U.S. Patent No. 2.761.791, 3,
508.947, 2.941.898, and 352
6.528 Specification, "Coating Engineering" by Yuji Harasaki
Two or more layers can be coated simultaneously by the method described on page 253 (published by Asakura Shoten, 1973).

The sensitive material of the present invention is composed of a silver halide emulsion layer, a magnetic recording layer, a bank layer, a protective layer, an intermediate layer, an antihalation layer, etc., and these are primarily used as a hydrophilic colloid layer.

In this case, binders for the hydrophilic colloid layer include, for example, proteins such as gelatin, colloidal albumin, and casein; cellulose compounds such as carboxymethyl cellulose and hydroxyethyl cellulose; agar, sodium alginate, and starch derivatives; Derivative di-synthetic hydrophilic colloids, e.g. polyvinyl alcohol, poly-N-
Vinylpyrrolidone, polyacrylic acid copolymer, polyacrylamide or derivatives thereof and partially hydrodispersed products,
Examples include dextran, polyvinyl acetate, polyacrylic acid ester, rosin, and the like. A mixture of two or more of these colloids may be used if necessary.

Among these, gelatin or its derivatives are most used, and gelatin here refers to so-called lime-treated gelatin, acid-treated gelatin, and enzyme-treated gelatin.

The photographic light-sensitive material of the present invention has U.S. patent tJ3 in its photographic constituent layers.
, No. 411.911, 3. 411. 912! , and the polymer latex described in Japanese Patent Publication No. 45-5331.

The silver halide emulsion layer and other hydrophilic colloid layers in the photographic light-sensitive material of the present invention can be hardened with various organic or inorganic hardening agents (singly or in combination). Typical examples include the aforementioned polymer hardeners and low molecular hardeners (HPI to HP8, H1 to H17, etc.).

Representative examples of silver halide color photographic materials particularly preferred in the present invention include color reversal films and color negative films.

In particular, a general color negative film is a preferred color photographic material.

The following description will be made using a general color negative film.

The light-sensitive material of the present invention has at least one silver halide emulsion layer of a blue-sensitive layer, a green-sensitive layer, and a red-sensitive layer on a support.
There is no particular restriction on the number and order of the silver halide emulsion layer and the non-photosensitive layer, as long as the layers are provided. A typical example is a silver halide photographic material having at least a photosensitive layer consisting of a plurality of silver halide emulsion layers having substantially the same color sensitivity but different photosensitivity on a support. The photosensitive layer is a unit photosensitive layer sensitive to blue light, green light, or red light, and in multilayer silver halide color photographic light-sensitive materials, the photosensitive layer is generally a unit photosensitive layer. A red-sensitive layer, a green-sensitive layer, and a blue-sensitive layer are arranged in this order from the support side. However, depending on the purpose, the above-mentioned order of installation may be reversed, or the order of installation may be such that different photosensitive layers are sandwiched between the same color-sensitive layer.

A non-photosensitive layer such as an intermediate layer between each layer may be provided between the silver halide photosensitive layers and between the uppermost layer and the lowermost layer.

The intermediate layer includes JP-A Nos. 61-43748 and 59-1.
No. 13438, No. 59-113440, No. 61-20
Coupler, DIR compound, etc. as described in No. 037 and No. 61-20038 may be included, and a color mixing prevention layer as commonly used may be included.

The plurality of silver halide emulsion layers constituting each unit photosensitive layer are disclosed in West German Patent No. 1,121,470 or British Patent No. 9.
No. 23,045, JP-A-57-112751, JP-A No. 62
-200350, 62206541, 82-2
No. 08543, No. 56-25738, No. 82-639
No. 36, No. 59-202464, Special Publication No. 55-349
No. 32 and No. 49-15495.

Silver halide grains include those with regular crystals such as cubes, octahedrons, and dodecahedrons, those with irregular crystals such as spherical and plate shapes, and those with crystal defects such as twin planes. or a combination thereof.

The grain size of the silver halide may be fine grains of about 0.2 μm or less or large grains with a projected area diameter of up to about 10 μm, and may be a polydisperse emulsion or a monodisperse emulsion.

Silver halide emulsions that can be used in the present invention include, for example, Research Disclosure (RD) No.

17643 C December 1978), pp. 22-23, 1
Emulsion preparation
on andt, yps)” and same No. 18716
(November 1979), 648 pages, Graphic "Physics and Chemistry of Photography", Published by Paul Montell (P, Gla
fkides.

Chmicet Ph1sique Photogra
phique, Paul Montel.

1967), "Photographic Emulsion Chemistry" by Duffin, published by Focal Press (G, P, Duffin, Photog
rapicEmulsion Chemistry
(Focal Press, 1966), Zelikman et al., "Manufacture and Coating of Photographic Emulsions", published by Focal Press (■几, Zelikman et al., Mak
ing arid, coating photogra
phic Emulsion, Focal Pre
ss.

It can be adjusted using the method described in (1964) et al.

U.S. Patent No. 3,574,628, U.S. Patent No. 3,655.39
Monodisperse emulsions such as those described in No. 4 and British Patent No. 1,413,748 are also preferred.

Tabular grains having aspect ratios of about 5 or more can also be used in the present invention. Tabular grains are described in Cutoff, Photographic Science and Engineering.
ence and E! ngineering), 1st
4, pp. 248-257 (1970); U.S. Patent No. 4.
434゜226, 4,414,310, 4,4
33.048, 4,439,520, and British Patent No. 2,112,157%.

The crystal structure may be --like, the inside and outside may have different halogenated compositions, or it may have a layered structure. Further, silver halides having different compositions may be bonded by epitaxial bonding, or compounds other than silver halide such as silver rhodan or lead oxide may be bonded.

Also, a mixture of particles of various crystal forms may be used.

The silver halide emulsion used is usually one that has been subjected to physical ripening, chemical ripening, and spectral sensitization. The efficiency of the present invention is particularly noticeable when emulsions sensitized with gold compounds and sulfur-containing compounds are used. Additives used in such processes are described in Research Disclosure No. 17843 and No. 18716, and the relevant sections are summarized in the table below.

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

Added M Enoki @ RD 17643 RD 187
]61 Chemical sensitizers Page 23 Page 648 Right column 2 Sensitivity enhancers Same as above 3 Spectral sensitizers Supersensitizers 4 Brighteners 5 Anti-fog agents and stabilizers 6 Light absorbers, filter dyes, ultraviolet absorbers Anti-stain agent Dye image stabilizer Hardener Binder Enabler II agent, lubricant Coating aid, Surface active agent Page 23-24 Page 24 Page 24-25 Page 25-26 Page 25 Page right column Page 25 Page 26 Page 26 Page 27 Pages 26-27, page 648, right column - page 649, right column, page 649, right column - page 649, right column - page 650, left column, page 650, left to right column, page 651, left column, same as above, page 650, right column, page 650, right column. In order to prevent the deterioration of photographic performance due to
It is preferable to add to the light-sensitive material a compound that can be immobilized by reacting with formaldehyde as described in No. 435.503.

Various color couplers can be used in the present invention, and specific examples thereof include the above-mentioned Research Disclosure t-(
RD) No. 17643, ■-C to G.

As a yellow coupler, for example, U.S. Patent Ring 3.93
No. 3,501, No. 4,022,620, No. 4,326
, No. 024, No. 4,401,752, No. 4,248,9
No. 61, Special Publication No. 58-10739, British Patent No. 1.4
No. 25,020, same].

No. 476.760, U.S. Pat. 973. 968
Preferred are those described in No. 4,314,023, No. 4,511°649, European Patent No. 249.473A, and the like.

As magenta couplers, 5-pyrazolone and pyrazole azole compounds are preferred;
No. 10.619, No. 4.35L897, European Patent No. 7
No. 3,636, U.S. Patent No. 3,061,432, No. 3
, No. 725.067, Research Disclosure N
o, 24220 (June 3984), JP-A-60-33
No. 552, Research Disclosure No. 242
30 (June 1984), JP-A No. 60-43659,
No. 61-72288, No. 60-35730, No. 55
-118034, 6 (1-185951, U.S. Pat. No. 4,500.630, 4,540.854,
No. 4,558.830, WO (PCT) 8 B10
Particularly preferred are those described in No. 4795 and the like.

Cyan couplers include phenolic and naphthol couplers, and are disclosed in U.S. Pat.
No. 4,146.396, No. 4.228,233, No. 4.296.200, No. 2,369.929,
No. 2,801.171, No. 2,772. IB No. 2, 2.895. No. 826, No. 3,772.002, No. 3,758°308, No. 4,334.001, No. 4
, No. 327.1713, West German Patent Publication Route 3. 329.
729, European Patent No. 121.365A, European Patent No. 249
No. 453A, U.S. Patent No. 3,448.822, No. 4
, No. 333,999, No. 4,753.871, No. 4,
No. 451,559, No. 4,427,767, No. 4,6
No. 90,889, No. 4,254゜212, No. 4.29
6,199, JP-A-6142658, etc. are preferred.

Colored couplers for correcting unnecessary absorption of coloring dyes are Research Disclosure No.

Section 17643 - G, U.S. Patent Ring No. 4,163°670
No. 57-39413, U.S. Patent No. 4.004
．． No. 929, No. 4,138,258, British Patent No. 1.
146,368 is preferred.

Couplers whose colored dyes have excessive diffusivity include U.S. Pat. No. 4,366.237 and British Patent No. 2,125
, 570, European Patent No. 96,570, and German Patent Publication No. 3,234,533 are preferred.

Typical examples of polymerized dye-forming couplers are U.S. Pat.
It is described in 4,367.282, 4,409.320, 4,576.910, British Patent 2,102,273, etc.

Couplers that release photographically useful residues upon coupling are also preferably used in the present invention.

The DIR coupler releasing the development inhibitor is the aforementioned RD]
7643, the patent described in section ■-F, JP-A-57-1
No. 51944, No. 57-154234, No. 80-18
No. 4248, No. 83-37346, U.S. Patent No. 4,2
48.962 is preferred.

Couplers that release a nucleating agent or a development accelerator imagewise during development include British Patent Ring No. 2.097°140;
Those described in JP-A No. 2,131,188, JP-A-59-157638, and JP-A-59-170840 are preferred.

Other couplers that can be used in the photosensitive material of the present invention include competitive couplers described in U.S. Pat. No. 4,130,427, U.S. Pat. 4.310,618, DIR redox compound emitting couplers, DlrR coupler emitting couplers DI, etc. described in JP-A-60-185950, JP-A-6224252, etc.
R coupler releasing redox compound or DIR redox releasing redox compound, European Patent No. 173,30
2A, a coupler that emits a dye that becomes yellow after separation, R, D, No. 11449, 24241, Special y! J
Bleach accelerator-releasing couplers described in No. 61-201247, etc., couplers that release ligands as described in U.S. Pat. No. 4,553,477, etc., couplers that release leuco dyes as described in JP-A-63-75747, etc. can be mentioned.

The coupler used in the present invention can be introduced into the light-sensitive material by various known dispersion methods.

Examples of high boiling point solvents used in the oil-in-water dispersion method are described in US Pat. No. 2,322,027 and the like.

The boiling point at normal pressure used in the oil-in-water dispersion method is 175°C.
Specific examples of the above-mentioned high boiling point organic solvents include phthalic acid esters, esters of phosphoric acid or phosphonic acid, benzoic acid esters, amides, alcohols or phenols, aliphatic carboxylic acid esters, aniline derivatives,
Examples include hydrocarbons. In addition, as an auxiliary solvent,
Organic solvents having a boiling point of 30°C or higher, preferably 50°C or higher and about 160°C or lower can be used, and typical examples include ethyl acetate, butyl acetate, ethyl propionate, methyl ethyl ketone, cyclohexane, 2-ethoxyethyl acetate, diethyl formaldehyde, etc. can be mentioned.

Specific examples of latex dispersion processes, effects, and latex for impregnation are described in U.S. Pat.
41,230, etc.

In the light-sensitive material of the present invention, the total thickness of all the hydrophilic colloid layers on the side having the emulsion layer is preferably 28 μm or less, and the film swelling rate T1/2 is preferably 30 seconds or less. Film thickness is 25℃
It refers to the film thickness measured under a relative mixing ratio of 55% gm (2 Er), and the film swelling rate T1/2 can be measured according to techniques known in the art. For example, Nee Green (A.

Photographic Science and Engineering (Photogr, S. Green) et al.
ci.

Eng, ), Vol. 19, No. 2, pp. 124-129, T1/2 can be measured using a color developer at 30°C for 3 minutes.
The saturation film thickness is defined as 90% of the maximum *m film thickness reached when processing for 5 seconds, and is defined as the time required to reach the film thickness of T1/2.

llJIIl1glI speed T]/2 can be adjusted by adding a hardening agent to gelatin as a binder or by changing the aging conditions during coating. Also, Jl/+! The ratio is preferably 150 to 400%.

! III! The l1lI rate is calculated from the maximum *m film thickness under the conditions described earlier, using the formula: (maximum jI film thickness - film thickness')
/jl thickness.

The color photographic material according to the present invention includes the above-mentioned RD, N
o, 17643, pages 28-29, and same No. 1873
6, 615, left column to right column.

The silver halide color light-sensitive material of the present invention may contain a color developing agent for the purpose of simplifying and speeding up processing. In order to incorporate the color developing agent, it is preferable to use various precursors of the color developing agent. For example, U.S. Patent No. 3,842.5
Indoaniline compound No. 97, No. 3,342,59
No. 7, Schiff base-type compounds described in Research Disclosure No. 14.850 and Research Disclosure No. 15゜159, Research Disclosure No. 13.
．． No. 924.

The photosensitive material of the present invention is preferably in the form of a roll, which allows signals to be easily input to the magnetic recording layer during film transport in a camera or printer.

Preferably, the number of perforations per screen is less than 135 formats. It is particularly preferable that the number of perforations per frame is 4 or less.

The magnetic recording format preferably follows the method disclosed in World Publication No. 90-04205.

When the photosensitive material of the present invention is used in the form of a roll, it is preferably stored in a cartridge. The most common cartridge is the current 13
It is a 5 format patrone. Other cartridges proposed in the following patents can also be used. (Jitsukai 58-
No. 67329, JP-A-58-181035, JP-A No. 58-
No. 182634, U.S. Pat.
No. 63-183344, No. 63-325638, Japanese Patent Application No. 1-21862, No. 1-25362, No. 13.
No. 24, No. 1-20222, No. 1211is, No. 1-20222, No. 1211is, No. 1-20222, No.
-37]8] @, No. 1-33108, No. 1-8519
No. 8, No. 1172595, No. 1-172593, No. 214895, U.S. Patent No. 4,846,418,
(No. 4,848,693, No. 4,832,275) Furthermore, the cartridge used in the present invention can also be made of synthetic plastic as a main component.

Further, the cartridge may contain various antistatic agents.

(Example) The present invention will be explained in more detail with reference to Examples below, but the present invention is not limited thereto.

Example 1 A magnetic coating liquid having the following composition was kneaded in a ball mill for 50 hours.

(Magnetic coating liquid 1) Fe alloy powder (15000e, BET surface area 50 m/g) 400 parts by weight Binder composition Vinyl chloride copolymer-based acrylate (acid value 13, molecular weight 20,000, average acryloyl group content 2.8 pieces/ Molecules) 60 parts by weight Urethane acrylate (acid value 10, molecular weight 10,000, average acryloyl group content 3/molecule) 40 parts by weight Stearic acid 4 parts by weight Butyl stearate 4 parts by weight Methyl ethyl ketone 800 parts by weight (Magnetic coating liquid 2 ) Fe alloy powder (15000e, BET surface area 50%/g) 0 parts by weight Binder composition Vinyl chloride copolymer based acrylate (acid value 13, molecular weight 20,000, average acryloyl group content 2.8 pieces/molecule) 60 parts by weight Urethane acrylate (acid value 10, molecule 110,000, average acryloyl group content 3 pieces/molecule) 40 parts by weight Stearic acid 4 parts by weight Butyl stearate 4 parts by weight Methyl ethyl ketone After dispersing 800 parts by weight, convergence 35 mm
, the above 2 was applied to a 122 μm thick cellulose triacetate film.
A seed magnetic coating liquid is applied to areas other than the screen area in a stripe pattern with a thickness of 4 mm ffi in the length direction using an extrusion coating method.

One side of the striped magnetic recording layer uses magnetic coating liquid 1,
The other striped magnetic recording layer provided on the opposite side of the screen was coated so that the amount of magnetic material was 10 g/nf, using magnetic coating liquid 2, and the amount of magnetic material was 0.15 g/nf at 4 mm.
Apply so that it becomes nf. The interval between the two striped magnetic recording layers was 26 mm. Before the coating solution dried, it was treated using a cobalt magnet so that the magnetic material was sufficiently oriented. After drying the solvent (1 minute at 100°C), calendering was performed. Next, an electron beam was irradiated at an accelerating voltage of 165 kV and a beam current of 6 mA to give an absorbed dose of 7 Mrad. Sample A was thus obtained.

The striped magnetic recording layer coated with magnetic coating liquid 1 will be referred to as stripe 1, and the striped magnetic recording layer coated with magnetic coating liquid 2 will be referred to as stripe 2.

Sample B with different coating amount in the same way as Sample A
-L is prepared as shown in Table 1.

Using the same support as the above support, the above magnetic coating liquid 1 was applied over the entire surface of the support by an extrusion coating method. The amount of magnetic material was 10 g/i. Sample M was thus obtained.

Similarly, the magnetic coating liquid 2 was applied to the entire surface of the support so that the amount of magnetic material was 0.15 g/I'+.

This is called sample N.

Sample O is a sample in which magnetic coating liquid 2 is applied in a stripe shape with a width of 4 mm, with an amount of magnetic material of 0.15 g/n (on the outside of the west face).

Using these samples as supports, JP-A-2-93.6
A multilayer color photosensitive material was coated in exactly the same manner as the photosensitive layer described in Example 1 of No. 41. At this time, the striped magnetic recording layer was used as the back surface, and after glow discharge treatment was performed on the opposite side, the photosensitive layer was coated with heavy nitrogen. Sample P is a sample in which only a sensitive material is coated without providing a striped magnetic recording layer.

Sample P was exposed to gray light so that the R density was 0.8.
Samples A to N were exposed and processed under the same filter conditions so that the Ra degree was 0.8. These samples were developed as follows.

Color development 3 minutes 15 seconds Bleaching 6 minutes 30 seconds Washing with water 2 minutes 10 seconds Fixation 4 minutes 20 seconds Washing with water　　　　　3 minutes] 5 seconds Stable 1 minute o 5 seconds The composition of the treatment liquid used in each step was as follows.

Color developer diethylenetriaminepentaacetic acid 1.0 gl-hydroxyethylidene-1,1-diphosphonic acid
2.0 g sodium sulfite
4.0 g potassium carbonate
30.0 g potassium bromide
1.4g Potassium iodide 1.3g
Hydroxylamine sulfate 2.4g4-(N-
Ethyl-N-β-hydroxyethylamine) Add water and prepare 4.5 g of 2-methylaniline sulfate 1.01 pH 10.0 Bleach solution Ethylenediaminetetraacetic acid ferric ammonium salt 100.0 g Ethylenediaminetetraacetic acid disodium salt 10.0 g Ammonium bromide 150.0 g Ammonium nitrate Y o, o g Add water 1.01 pH 6,0 Fixer ethylenediaminetetraacetic acid disodium salt 1.0 Sodium sulfite 4,0 Ammonium thiosulfate aqueous solution (70%) 175,0 Sodium sulfite 4,6 Add water
1.01 pH 6.6 Stabilizing liquid formalin (40%) 2.0 ml Polyoxyethylene-p-monononylphenyl ether (average degree of polymerization 10) 0.3 g Add water 1.01 The permeation density of the obtained sample Each X-RI manufactured by X-RITE
Optical density was measured using TE Status A through B, G, and R filters. Table 1 shows the difference between the optical densities of samples A to H and that of sample P.

In addition, the striped magnetic recording layer has a gap length of 3.0.
μm, track width 1.0mm, convergence between tracks 1.0m
Using a rn, 2-channel, 1000-turn magnetic head, random data is recorded on samples A to H as FM digital signals. Head feed speed is 30
Let mm, ='s.

The recording current at this time is kept constant at 140 mA. Recording was performed while changing the recording density. Using the same RAD, we reproduced the signal with different recording densities, amplified the signal by 90 dB, and searched for a recording density that would give an output of 200 mV. The output waveform at this time was observed with an oscilloscope, and it was confirmed that the waveform was not distorted to the point that it could not be read. This operation was performed for each of the two striped magnetic recording layers.

When inputting to the two striped magnetic recording layers at the recording density determined in this way, the amount of information recorded on one screen of the two striped magnetic recording layers was measured. Sample O with one striped magnetic recording layer
Table 1 shows the relative amount of information recorded in each sample, assuming that the amount of information recorded in is 100. It is preferable that the relative value of the information amount is 200 or more. Another 220
It is more preferable that it is above.

Numbers were printed on stripe 2 using an LED before exposure, and it was determined whether they were visually readable or not. A is clearly readable, B is legible, and C is unreadable.

The results are shown in Table 1.

Samples A and H1○ can be optically recorded, but the amount of recorded information is not sufficient. Sample G cannot optically record stripe 2. Furthermore, if the transmission density of the screen area increases even slightly, it is considered unsuitable for photography.

Samples M and N, which were provided with a magnetic recording layer over the entire surface, had good magnetic properties, but the transmission density in the screen area increased;
Photographically unsuitable. Sample M also cannot be optically recorded.

In contrast to the comparative samples described above, samples BS-F and 1 to J of the present invention do not have a magnetic recording layer in the screen area, and therefore do not affect the optical properties of the photograph at all. It was also found that the magnetic recording properties were excellent and had no problems at all. In particular, samples C-E and J-L are striped]
The amount of magnetic material is 0゜05g/m or more, and stripe 2
Since the amount of magnetic material is in the range of 0.01 to 3 g/d, it shows particularly excellent performance.

Example 2 Instead of the Fe alloy powder in Example 1, γ ferric oxide (acicular particles, specific surface area 38 rr!7) coated with Co was used.
A sample was prepared in exactly the same manner as in Example 1 using 100% of the sample, and its magnetic recording properties and optical recording properties were examined in exactly the same manner.

The results are shown in Table 2.

The results are almost the same as in Example 1. Even when gamma ferric oxide coated with Co is used as the magnetic material, the transmission density in the screen area does not become zero when a magnetic recording layer is provided over the entire surface.

It can be seen that samples RU and Y to β of the present invention have excellent magnetic recording properties and optical recording properties. In particular, sample S
-U, Z to β, the amount of magnetic material in stripe 1 is 0.05g/
m or more, and the amount of magnetic material in stripe 2 is 0.01 to 3
g, ./m, showing very excellent performance.

(Effects of the Invention) According to the present invention, two striped magnetic recording layers are provided on both sides of the screen in a portion other than the screen portion, and at least one of the striped magnetic recording layers is optically transparent. By adding a certain magnetic recording layer, it is possible to magnetically record a sufficient amount of information such as information at the time of photographing and information to be processed in the laboratory after photography, and the magnetic recording layer does not affect the optical density of the screen at all. It has been found that it is possible to provide a silver halide photographic material that does not have any adverse effects.

Claims (3)

[Claims] (1) In a silver halide photographic material having at least one photosensitive silver halide emulsion layer on a film support, two magnetic recording layers are striped on both sides of the screen in areas other than the screen area. 1. A silver halide photographic light-sensitive material, wherein at least one of the striped magnetic recording layers is optically transparent. (2) The silver halide according to claim 1, wherein the content of the magnetic material in the optically transparent striped magnetic recording layer is 5 x 10^-^3 to 3 g per 1 m^2. Photographic material. (3) The content of the magnetic material in the other striped magnetic recording layer of the optically transparent striped magnetic recording layer is 1 m^2
3. The silver halide photographic material according to claim 2, wherein the silver halide photographic material contains 0.05 g or more.