JP3032898B2 - Antistatic photographic film cartridge capable of magnetic recording - Google Patents

Description

Description: FIELD OF THE INVENTION The present invention relates to a photographic film cartridge, and more particularly, to a photographic film cartridge capable of magnetic recording and having an antistatic property.

(Prior art)

Conventionally, a roll-shaped film known as JIS135 patrone has been widely used as a general photographing film.

U.S. Pat. No. 4,947,196 and WO 90104254 have started a camera having a roll-shaped film having a magnetic layer on the back side of the film and a magnetic head, and a magnetic head. According to the above-described improved technology, identification information of a photosensitive material, a maker, and the like, information relating to photographing conditions, information relating to printing conditions, information relating to additional printing conditions, etc., are input / output to a magnetic recording layer on a film. This makes it possible to improve the print quality, improve the efficiency of the printing operation, and the like.

However, when a photographic film having a magnetic recording layer on the back of the film is packed in a conventional 135 patrone and run inside the camera, static electricity is easily generated, and static marks are generated on the film by discharge, and electronic devices of the camera by charging. Therefore, there is a problem that troubles such as inducing a malfunction of the device easily occur, and improvement has been desired.

[Object of the invention]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a photographic film cartridge for a roll-shaped photographic film which is magnetically recordable and has antistatic properties, and is less likely to generate static marks and malfunction of a camera.

[Configuration of the invention]

An object of the present invention is to provide (1) a photographic component layer including a silver halide emulsion layer on one surface of a support, and magnetic recording is possible on a surface opposite to the support with respect to the photographic component layer. What is claimed is: 1. A photographic film cartridge for storing a photographic film provided with a magnetic layer up to the tip thereof, comprising: a cartridge outer shell constituting the photographic film cartridge; and a built-in cartridge outer shell for engaging and rotating with a camera mechanism. A rotation member movable between a first position and a second position, and a hook member for preventing free rotation of the rotation member in each of the first position and the second position. When the member is in the first position, the member is in close contact with the cartridge outer shell and keeps the inside of the cartridge light tight,
A photographic film cartridge, wherein a film entrance and exit portion is formed between the cartridge shell and the cartridge outer shell when in the second position.

Was achieved by

In the above (1), it is a preferable embodiment to have a separating claw for guiding the leading end of the film, which is fed out by sliding on the inner surface of the cartridge, to the film entrance.

The magnetic layer in the present invention is preferably transparent.
The preferred optical density is 1.0 or less, more preferably 0.7
It is 5 or less, particularly preferably 0.02 to 0.3.

In the present invention, the magnetic layer is a layer in which ferromagnetic powder is dispersed in a binder. The applied amount of the magnetic powder is 10 mg or less, preferably 5 mg or less, particularly preferably 0.1 to 3 mg, per 100 cm ² as iron.

Examples of the ferromagnetic powder include γ-Fe ₂ O ₃ powder, C
o Coated γ-Fe ₂ O ₃ powder, Co-coated Fe ₃ O ₄ powder, Co-coated FeO _x (4
/ 3 <x <3/2) powders, other iron oxides containing Co, and other ferrites such as hexagonal ferrites include, for example, M-type and W-type hexagonal Ba ferrite, Sr ferrite, and lead ferrite. , Ca ferrite, or a solid solution or an ion substitute thereof.

As the hexagonal ferrite magnetic powder, a part of Fe atoms, which are constituent elements of these uniaxially anisotropic hexagonal ferrite crystals, is a divalent metal and at least one pentavalent selected from Nb, Sb and Ta. A metal and an element having a coercive force of 200 to 2000 Oe substituted by Sn atoms in the range of 0.05 to 0.5 per chemical formula are used.

Mn and C are divalent metals in hexagonal ferrite.
Elements such as u and Mg which substitute relatively well for Fe atoms in ferrite are preferred.

Divalent metal (M _II ) and 5 in hexagonal ferrite
Appropriate substitutions of valence metal (M _V) is different by a combination of M _II and M _V, approximately per chemical formula M _II 0.5 to 1.2
Are preferred.

As for the relationship between the substitution amounts of the substitution elements, for example, regarding magnetoplumbite-type Ba ferrite, the chemical formula of the substitution product is represented by BaFe _{12- (x + y + z)} M _{II x} M _V ySn ₂ O ₁₉ . Where x,
y and z are the substitution amounts of M _II , M _V and Sn elements per ferrite chemical formula. M _II , M _V and Sn are divalent, pentavalent,
Since the Fe atom to be substituted is trivalent, the relationship of y = (x−z) / 2 is obtained in consideration of price number compensation. That substitution of M _V is uniquely determined from the amount of substitution substitution amount and Sn of M _II.

The coercive force (Hc) of the ferromagnetic powder is usually 200 Oe or more, preferably 300 Oe or more.

The size of the magnetic powder in the major axis direction is preferably 0.3 μm or less, more preferably 0.2 μm or less.

The specific surface area by the BET method of the ferromagnetic powder is usually 20 m ² / g or more, preferably 25~80m ² / g.

The shape of the ferromagnetic powder is not particularly limited, and for example, any of acicular, spherical, and elliptical shapes can be used.

Fatty acids can be contained in the magnetic layer of the present invention.

The fatty acid may be monobasic or dibasic, but the fatty acid preferably has 6 to 30, particularly 12 to 22, carbon atoms in the present invention.

Preferred fatty acids include, for example, caproic acid, caprylic acid, capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, isostearic acid, linolenic acid, linoleic acid, oleic acid, elaidic acid, behenic acid, malonic acid, succinic acid , Maleic acid, glutaric acid, adipic acid, pimelic acid, azelaic acid, sebacic acid, 1,
Examples include 12-dodecanedicarboxylic acid, octanedicarboxylic acid and the like.

Among these, myristic acid, oleic acid and stearic acid are particularly preferred.

In addition, when the fatty acid ester is contained in the magnetic layer, the friction coefficient of the magnetic layer is reduced, and the running properties and durability of the magnetic recording medium of the present invention are further improved.

Examples of the fatty acid ester include oleyl oleate, oleyl stearate, isocetyl stearate, dioleyl maleate, butyl stearate, butyl palmitate, butyl myristate, octyl myristate, octyl palmitate, amyl stearate,
Amyl palmitate, stearyl stearate, lauryl oleate, octyl oleate, isobutyl oleate,
Ethyl oleate, isotridecyl oleate, 2-ethylhexyl stearate, 2-ethylhexyl myristate, ethyl stearate, 2-ethylhexyl palmitate, isopropyl valmitate, isopropyl myristate, butyl laurate, cetyl-2-ethyl hexalate , Dioleyl adipate, diethyl adipate,
Examples include diisobutyl adipate and diisodecyl adipate.

Among these, butyl stearate and butyl palmitate are particularly preferred.

The above-mentioned various fatty acid esters may be used alone or in a combination of two or more.

The magnetic layer of the present invention may contain another lubricant together with the fatty acid or the fatty acid ester.

Other lubricants include, for example, silicone-based lubricants,
Fatty acid-modified silicone-based lubricants, fluorine-based lubricants, liquid paraffin, squalane, carbon black, and the like. These may be used alone or in combination of two or more.

As the binder, a transparent material such as cellulose ester or gelatin is used.

In a suitable transparent binder such as cellulose ester or gelatin, prepare a dispersion of finely divided magnetically receptive particles using an organic solvent for cellulose ester or a solvent for the binder such as water for gelatin. do it.

As an organic solvent used for dispersion, kneading, and application of particles, ketones such as acetone, methyl ethyl ketone, methyl isobutyl ketone, cyclohexanone, isophorone, and tetrahydrofuran in any ratio; methanol, ethanol, propanol, butanol, isobutyl alcohol, Alcohols such as isopropyl alcohol and methylcyclohexanol; methyl acetate, ethyl acetate,
Ester systems such as butyl acetate, isobutyl acetate, isopropyl acetate, ethyl lactate, and glycol monoethyl ether; ether systems such as diethyl ether, tetrahydrofuran, glycol dimethyl ether, glycol monoethyl ether, and dioxane; benzene, toluene, xylene, cresol, and chlor Tar-based (aromatic hydrocarbons) such as benzene and styrene; methylene chloride, ethylene chloride, carbon tetrachloride, chloroform,
Chlorinated hydrocarbons such as ethylene chlorohydrin and dichlorobenzene; N, N-dimethylformaldehyde, hexane and the like can be used.

The method of kneading is not particularly limited, and the order of addition of each component can be appropriately set.

In preparing the magnetic paint, a conventional kneading machine such as a two-roll mill, a three-roll mill, a ball mill, a pebble mill, a tron mill, a sand grinder, a Sgegvari (Szegvari), an attritor, a high-speed impeller disperser, a high-speed stone mill, and a high-speed mill Impact mills, dispers,
A kneader, a high-speed mixer, a ribbon blender, a co-kneader, an intensive mixer, a tumbler, a blender, a disperser, a homogenizer, a single screw extruder, a twin screw extruder, and an ultrasonic disperser can be used. For details of the kneading and dispersing technology, see TCPATTON (TC Patton),
“Paint Flow and Pigment Dispersion”, 1964
Year, John Wiley & Sons
Size) published by the company and Shinichi Tanaka, Industrial Materials, 25, 37 (19
77) and other references cited in the book, and these kneading and dispersing machines are appropriately combined for sending and coating for continuous processing. U.S. Pat.Nos. 2,581,414 and 2,855,1
It is also described in specifications such as No. 56. Also in the present invention, a magnetic paint can be prepared by kneading and dispersing according to the method described in the above-mentioned book or the cited reference of the book.

Prior to coating, the support is subjected to corona discharge treatment, plasma treatment, undercoat treatment, heat treatment, dust removal treatment, metal deposition treatment,
An alkali treatment may be performed. Regarding these supports, for example, West German Patent 3,338,854A, JP-A-59-116926
No. 4,388,368, Yukio Mitsuishi, Textile and Industry, Vol. 31, p. 50-55, 1975.

In the cartridge shell of the film cartridge preferably used in the present invention, it is preferable that a light shielding member is not adhered to the film entrance / exit portion as a method for preventing light from entering the cartridge shell through the entrance / exit portion of the film. In particular, it is preferable that a material such as a pile fabric is not adhered.

The light shielding of the film entrance of the film cartridge shell preferably used in the present invention is preferably performed by a member forming a slit of the entrance, and particularly preferably by fitting or tightly fitting a member forming a slit of the entrance. It is.

The structure of the cartridge shell used in the present invention is such that there is no drawn-out film tongue end, and the entire length of the fixed length is rolled into the cartridge shell in a roll shape. As long as it has a feeding means, the film cartridge mode already disclosed may be used.

As a configuration of the film cartridge preferably used in the present invention, the cartridge shell of the photographic film cartridge has a double structure including a sheath tube which slides and fits each other and a fitting insertion tube which is inserted into the sheath tube. A bottom plate provided with a spool shaft support hole at only one end of the cylinder, and a slit parallel to the cylinder axis and an eaves piece provided in contact with one edge of the slit on each cylinder peripheral surface, The sheath tube and the insertion tube are fitted to each other, and one side of the eaves is in close contact and light-tight, and the two tubes are relatively rotated to separate the one side of the eaves, and the photographic film is fed out. A wearable photographic film cartridge may be used.

An example of such a cartridge shell is shown in FIG. 1 as a sectional view.

FIG. 1 (a) shows a state in which the two eaves are in close contact with each other to make them light-tight, and FIG. 1 (b) shows a state in which both the eaves are turned to separate the eaves to form a tunnel slit.

In the figure, reference numeral 1 denotes a sheath tube, 2 denotes a fitting insertion tube, and 3 denotes a bottom plate having a spool shaft support hole 4. One bottom plate is provided for each of the two tubes. It is located at both ends of the cartridge shell. The bottom plate may be the same size as the diameter of the cylinder, or may be protruded from the circumference of the cylinder to form a shape or process convenient for loading a camera or operating the cartridge, for example, a square, trapezoid, polygon,
Circular or notches, protrusions, grooves, etc. can be arbitrarily selected.
Reference numerals 11 and 21 denote a sheath tube and a slit of the fitting tube, respectively. Reference numerals 12 and 22 denote eaves of the sheath tube and the fitting tube, respectively.

Reference numeral 122 denotes a light shielding piece for light entering from the cylindrical tangential direction of the eaves piece contact surface, and a hook for engaging with the tip 222 of the eaves piece 22 to prevent the opening of the eaves piece. Reference numerals 123 and 223 denote hooks that stably maintain a tunnel slit formed by both eaves pieces when the eaves pieces are opened.

When the sheath tube 1 is relatively turned clockwise from the state shown in FIG. 1A, the slide rail 121 hidden by the eaves 22 appears.

Several slide rails 121 are provided inside the eaves piece 21, and correspondingly, a rail groove 221 indicated by a virtual line in the figure is provided inside the eaves piece 22.

The slide rail 121 and the rail groove reduce the contact surface between the inner surface of the formed tunnel slit 5 and the photographic film, and the outermost slide rail 121 also serves as a light shielding plate for light from the side. Further, the slide rail 121 forms a smooth flat surface with the upper inner surface of the slit 21 in the drawing to eliminate troubles such as catching in film feeding.

Reference numeral 23 denotes a separating claw that guides a tunnel slit formed with a leading end of a film that is fed by sliding on the inner surface of the insertion tube.

The above-mentioned cartridge shell has a built-in scroll,
The photographic film cartridge in the state shown in FIG. 3A is loaded into the camera, and the sheath tube is turned clockwise.
Is disengaged, the hooks 123 and 223 are engaged, the sheath tube and the fitting tube are locked, and the tunnel slit 5 is formed. Next, when the scroll is turned to the left, the photographic film is easily and reliably fed out of the cartridge while sliding on the inner surface of the insertion tube by the force of its own disengagement and with the help of the separating claws 23.

When the photographing is completed, the operation reverse to the above is performed, and FIG.
Is taken out of the camera as a state.

The photographic constituent layers used in the photographic film of the present invention include a film layer, an intermediate layer, a protective layer and the like in addition to the photosensitive silver halide emulsion layer.

In the present invention, as the silver halide emulsion, those described in Research Disclosure (hereinafter abbreviated as RD) 308119 can be used. The following table shows the locations.

In the present invention, a silver halide emulsion which has been subjected to physical ripening, chemical ripening and spectral sensitization is used. The additives used in such a process are RD17643, RD18716 and RD3
08119.

 The following table shows the locations.

Known photographic additives that can be used in the present invention are also described in the above RD. The following table shows relevant descriptions.

Various couplers can be used in the present invention, and specific examples are described in the above RD. The following table shows relevant descriptions.

The additives used in the present invention can be added by the dispersion method described in RD308119XIV or the like.

In the present invention, the aforementioned RD17643 page 28, RD1871664 7-
The support described on page 8 and XIX of RD308119 can be used.

The photographic film of the present invention can be provided with an auxiliary layer such as a filter layer or an intermediate layer described in the aforementioned RD308119VII-K.

The photographic film of the present invention can have various layers and constitutions such as a normal layer, a reverse layer, and a unit constitution described in the aforementioned RD308119VII-K.

The present invention can be applied to various color light-sensitive materials represented by color negative films for general use or movies, color reversal films for slides or televisions, and color positive films.

The photographic film of the present invention is described in RD17643, pp. 28-29, RD187.
Development can be carried out by the usual method described in XIX on page 16647 and RD308119.

(Examples) Next, the present invention will be described with reference to examples, but embodiments of the present invention are not limited thereto.

Layering of Back Layer of Comparative Support The following coating solution for the first layer was applied on a cellulose triacetate film so as to be 20 ml / m ² , and dried at 80 ° C. for 5 minutes to form a back layer.

Coating solution for first layer The following coating solution for the second layer was applied onto the first layer at a concentration of 20 ml / m ² and dried at 80 ° C. for 5 minutes.

Second layer coating solution The following coating solution for the third layer was applied onto the second layer so as to have a concentration of 20 ml / m ² and dried at 90 ° C. for 5 minutes.

Coating solution for third layer The support having the back layer is referred to as B-0.

Layering of magnetic layer 100 parts by weight of γ-Fe ₂ O ₃ (coercive force: 330 Oe BET surface area 28 m ² / g, major axis length 0.2 μm, needle ratio 5) 210 parts by weight of cellulose triacetate 2100 parts by weight of methylene chloride 1000 parts by weight of methyl ethyl ketone Parts The above components were mixed together with a dissolver and then dispersed with a sand grinder to obtain a dispersion. The viscosity is B
It was 8.8 poise as measured by a mold viscometer.

20 parts by weight of the above dispersion was taken and thoroughly mixed with a dopant having the following composition by a dissolver.

Cellulose triacetate 13.8 parts by weight Methylene chloride 163.1 parts by weight Cyclohexanone 55 parts by weight Ethanol 3.1 parts by weight The obtained mixture was placed on one side of a cellulose triacetate base for photography, using an extrusion coater of the type shown in JP-A-1-210072. Was applied to a dry thickness of 4 μm, and dried while performing an orientation treatment using a counter magnet. As a result, a magnetic coating film containing about 2 mg of magnetic powder per 100 square centimeters of the film was prepared.

When its magnetic properties were measured, the coercive force was 460 Oe. Its optical color density was 0.14. The support having the magnetic layer is referred to as B-1.

Next, in the production of the support B-1, except that 20 parts by weight of the dispersion was used and 10 parts by weight of the dispersion was used, B-1 was used.
A magnetic layer was applied on a cellulose triacetate base in the same manner as in the above. The magnetic recording layer had a magnetic powder content of about 1.1 mg, a coercive force of 465 Oe, and an optical density of 0.10.

 The support having the magnetic layer is referred to as B-2.

 Next, a support B-3 having the following magnetic layer was prepared.

Magnetic layer Co-coated γ-Fe ₂ O ₃ 100 parts by weight (coercive force: 610 Oe BET surface area 35 m ² / g, major axis length 0.23 μm, needle ratio 7) Cellulose triacetate 210 parts by weight Methylene chloride 2100 parts by weight Methyl ethyl ketone 1000 Parts by weight The above components were mixed together with a dissolver and then dispersed with a sand grinder to obtain a dispersion. The viscosity is B
It was 8.8 poise as measured by a mold viscometer.

20 parts by weight of the above dispersion was taken and thoroughly mixed with a dopant having the following composition by a dissolver.

Cellulose triacetate 13.8 parts by weight Methylene chloride 163.1 parts by weight Cyclohexanone 55 parts by weight Ethanol 3.1 parts by weight The obtained admixture was placed on one side of a cellulose triacetate base for photography, using an extrusion coater of the type shown in JP-A-1-210072. The resultant was applied to the entire surface so as to have a dry thickness of 4 μm, and dried while performing an orientation treatment using a counter magnet. As a result, a magnetic coating film containing about 2 mg of magnetic powder per 100 square centimeters of the film was prepared.

When its magnetic properties were measured, the coercive force was 670 Oe. Its optical color density was 0.14. Next, the support B-
The photographic constituent layer was coated on the surface opposite to the back layer or the magnetic layer of Nos. 0 to B-3 with the support interposed therebetween.

Layering of Photo Constituent Layer In all of the following examples, the amount of addition in the silver halide photographic light-sensitive material indicates grams per 1 m ² unless otherwise specified. Further, silver halide and colloidal silver are shown in terms of silver. The sensitizing dye was represented by the number of moles per mole of silver.

First layer; Antihalation layer (C-1) Black colloidal silver 0.18 UV absorber (UV-1) 0.23 High boiling point solvent (Oi-1) 0.18 Gelatin 1.42 Second layer; Intermediate layer (IL-1) Gelatin 1.27 3 layers; low-sensitivity red-sensitive emulsion layer (RL) silver iodobromide emulsion (Em-1) 0.20 silver iodobromide emulsion (Em-1) 0.78 sensitizing dye (SD-1) 1.8 × 10 ^-5 sensitizing dye (SD-2) 2.8 × 10 ^-4 sensitizing dye (SD-3) 1.9 × 10 ^-4 sensitizing dye (SD-4) 1.1 × 10 ^-4 cyan coupler (C-1) 0.70 Colored cyan coupler (CC- 1) 0.066 DIR compound (D-1) 0.028 High boiling point solvent (Oi-1) 0.64 Gelatin 1.18 4th layer; Medium sensitivity red-sensitive emulsion layer (RM) Silver iodobromide emulsion (Em-3) 0.78 Sensitizing dye ( SD-1) 2.1 × 10 ^-5 sensitizing dye (SD-2) 1.9 × 10 ^-4 sensitizing dye (SD-3) 9.6 × 10 ^-5 sensitizing dye (SD-4) 9.6 × 10 ^-5 cyan coupler (C-1) 0.28 Colored cyan coupler (CC-1) 0 .027 DIR compound (D-1) 0.011 High boiling solvent (Oi-1) 0.26 Gelatin 0.58 Fifth layer; High sensitivity red-sensitive emulsion layer (RH) Silver iodobromide emulsion (Em-4) 1.73 Sensitizing dye (SD -1) 1.9 × 10 ^-5 sensitizing dye (SD-2) 1.7 × 10 ^-4 sensitizing dye (SD-3) 1.7 × 10 ^-4 cyan coupler (C-2) 0.14 DIR compound (D-1) 0.025 High boiling solvent (Oi-1) 0.17 Gelatin 1.24 6th layer; Intermediate layer (IL-2) Gelatin 0.80 7th layer; Low sensitivity green-sensitive emulsion layer (GL) Silver iodobromide emulsion (Em-1) 0.11 Iodine odor Silver halide emulsion (Em-2) 0.98 Sensitizing dye (SD-4) 6.8 × 10 ^-5 Sensitizing dye (SD-5) 6.8 × 10 ^-4 Magenta coupler (M-1) 0.54 Magenta coupler (M-2) 0.19 Colored magenta coupler (CM-1) 0.06 DIR compound (D-2) 0.017 High boiling point solvent (Oi-2) 0.81 Gelatin 1.77 Eighth layer; Medium-sensitive green-sensitive emulsion layer (GM) Silver iodobromide emulsion (Em- 3) 0.66 sensitized color (SD-4) 8.2 × 10 -5 Sensitizing dye (SD-6) 1.9 × 10 -4 Sensitizing dye (SD-7) 1.2 × 10 -4 Sensitizing dye (SD-8) 1.5 × 10 -5 Magenta Coupler (M-1) 0.074 Magenta coupler (M-2) 0.034 Colored magenta coupler (CM-1) 0.043 DIR compound (D-2) 0.018 High boiling solvent (Oi-2) 0.30 Gelatin 0.76 9th layer; High sensitivity green Sensitive emulsion layer (GH) Silver iodobromide emulsion (Em-5) 1.66 Sensitizing dye (SD-4) 2.1 × 10 ^-5 sensitizing dye (SD-6) 1.2 × 10 ^-4 sensitizing dye (SD-7) 1.0 × 10 ^-4 sensitizing dye (SD-8) 3.4 × 10 ^-6 Magenta coupler (M-1) 0.094 Magenta coupler (M-3) 0.044 Colored magenta coupler (CM-1) 0.038 High boiling solvent (Oi-) 2) 0.31 gelatin 1.23 10th layer; yellow filter layer (YC) yellow colloidal silver 0.05 color stain inhibitor (SC-1) 0.1 high boiling solvent (Oi-2) 0.125 gelatin 1.33 formalin scavenger JA (HS-1) 0.088 Formalin scavenger (HS-2) 0.066 11th layer; low-sensitivity blue-sensitive emulsion layer (BL) Silver iodobromide emulsion (Em-1) 0.12 Silver iodobromide emulsion (Em-2) 0.24 silver iodobromide emulsion (Em-3) 0.12 sensitizing dye (SD-9) 5.2 × 10 ^-4 sensitizing dye (SD-10) 1.9 × 10 ^-5 yellow coupler (Y-1) 0.65 yellow coupler (Y -2) 0.24 High boiling point solvent (Oi-2) 0.18 Gelatin 1.25 Formalin scavenger (HS-1) 0.08 12th layer; High sensitivity blue-sensitive emulsion layer (BH) Silver iodobromide emulsion (Em-3) 0.14 Iodine odor Silver halide emulsion (Em-6) 0.81 Sensitizing dye (SD-9) 1.8 × 10 ^-4 Sensitizing dye (SD-10) 7.9 × 10 ^-5 Yellow coupler (Y-1) 0.18 High boiling solvent (Oi-2) ) 0.074 Gelatin 1.30 Formalin Scavenger (HS-1) 0.05 Formalin Scavenger (HS-2) 0.12 13th layer; 1st protective layer (Pro-1) Fine grain silver iodobromide emulsion 0.4 (average grain 0.08μm AgI1mol%) UV absorber (UV-1) 0.065 UV absorber (UV-2) 0.10 High boiling solvent (Oi-1) 0.07 High boiling solvent (Oi-3) 0.07 Formalin scavenger (HS-1) 0.13 Formalin scavenger (HS-2) 0.37 Gelatin 1.31 14th layer; 2nd protective layer (Pro-2) Alkali-soluble matting agent (average particle size 2 μm) 0.13 Polymethyl methacrylate (average particle size 3 μm) 0.02 Slip agent (WAX -1) 0.04 Gelatin 0.55 In addition to the above-mentioned tissue, coating aid Su-1 and dispersion aid Su-
2. Clay preparation, hardener H-1, H-2, stabilizer ST-
1. Antifoggant AF-1, two kinds of AF-2 having different degrees of polymerization, Mw: 10,000 and Mw: 1,100,000, and compound DI-1 (9.
4 mg / m ² ) was added.

The emulsions used in the above samples are as follows. The average particle size was represented by a side length particle size converted into a cube. Each emulsion was optimally subjected to gold-sulfur sensitization.

The coated sample obtained in this way is cut into a roll size by cutting it into a length sufficient for photography equivalent to 36 frames of 135 size, and stored in a JIS135 film cartridge with a polyester light shielding member attached to the film entrance and exit. did.

The coated sample obtained in the same manner was cut into a length sufficient for 135 size to be made into a roll shape, as shown in FIG.

The photographic film cartridge was housed in such a manner that the tongue end of the film did not protrude outside the cartridge, and a film cartridge was prepared. Impact-resistant polystyrene was used for the resin material of the film cartridge.

The degree of occurrence of the static mark is set at 5 ° C. after loading the film cartridge and the film cartridge into the camera.
A film running test was performed under the conditions of 20% RH, and after the development processing shown below, evaluation was made by checking the frequency of occurrence. The results are shown in Table 1.

Processing step [I] (38 ° C) Color development 3 minutes 15 seconds Bleaching 6 minutes 30 seconds Washing 3 minutes 15 seconds Fixing 6 minutes 30 seconds Washing 3 minutes 15 seconds Stabilization 1 minute 30 seconds Drying 1 minute 30 Second The composition of the processing solution used in each processing step is as follows.

(Color developing solution) 4-amino-3-methyl-N-ethyl-N- (β-hydroxyethyl) aniline sulfate 4.75 g anhydrous sodium sulfite 4.25 g hydroxyamine 1/2 sulfate 2.0 g anhydrous potassium carbonate 37.5 g Sodium bromide 1.3 g Nitrilo triacetic acid trisodium salt (monohydrate) 2.5 g Potassium hydroxide 1.0 g Add water to make 1 (PH = 10.1) (Bleaching solution) Ethylene (III) ammonium salt of ethylenediaminetetraacetate 100g Diammonium salt of ethylenediaminetetraacetic acid 10g Ammonium bromide 150g Glacial acetic acid 10ml Add water to make 1 and adjust to pH = 6.0 using aqueous ammonia.
Adjust to

(Fixing solution) Ammonium thiosulfate 175.0 g Anhydrous sodium sulfite 8.5 g Sodium metasulfite 2.3 g Add water to 1 and adjust the pH to 6.0 using acetic acid.

(Stabilizing solution) Formalin (37% aqueous solution) 1.5 ml KONIDAX (manufactured by Konica Corporation) 7.5 ml Add water to make 1.

As can be seen from Table 1, the photographic film cartridge of the present invention showed a remarkable improvement in static marks in a film running test in a camera.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of an example of a film cartridge shell according to the present invention. FIG. 1A shows a light-tight state, and FIG.
Indicates a state in which a tunnel slit has been formed in the camera. DESCRIPTION OF SYMBOLS 1 ... sheath cylinder, 2 ... fitting insertion tube, 3 ... bottom plate, 4 ... spool shaft support hole, 5 ... tunnel slit, 11 and 21 ... slit, 12 and 22 ... eaves piece, 23 ... Handling claws.

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yasuhisa Yamauchi 1 Sakuracho, Hino-shi, Tokyo Konica Corporation (72) Inventor Yoshitaka Anfuku 1 Sakuracho, Hino-shi, Tokyo Konica Corporation (56) References JP-A-2-124564 (JP, A) JP-A-56-40822 (JP, A) JP-A-2-188744 (JP, A) JP-A-2-71258 (JP, A) −74236 (JP, U) J.H. 5-22936 (JP, Y2) (58) Fields investigated (Int. Cl. ⁷ , DB name) G03C 3/00

Claims (2)

(57) [Claims] 1. A photographic component layer including a silver halide emulsion layer is provided on one surface of a support, and a magnetic layer capable of magnetic recording is provided on a surface opposite to the photographic component layer with respect to the support. A photographic film cartridge for accommodating the photographic film to its leading end, comprising: a cartridge outer shell constituting the photographic film cartridge; and a first position which is contained in the outer shell of the cartridge and rotated by engaging with a camera mechanism. A rotation member movable between a first position and a second position; and a hook member that prevents free rotation of the rotation member in each of the first position and the second position. When it is in the first position, it is in close contact with the outer shell of the cartridge to keep the inside of the cartridge light tight, and when it is in the second position, it forms a film port with the outer shell of the cartridge. A photographic film cartridge. 2. A photographic film cartridge according to claim 1, further comprising a separating claw for guiding the leading end of the film, which is fed out by sliding on the inner surface of the cartridge, to the film entrance.