JPH10186591A - Silver halide photographic sensitive material and its winding method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obviate the occurrence of trouble, such as exposure, at the time of winding a photosensitive material having a polyester base on the spool of a camera by temporally fixing light shielding paper in the specific section from an outer peripheral front end. SOLUTION: The silver halide photographic sensitive material formed by using the polyester base is wound to a roll from together with the light shielding paper 3 on the outer side. The light shielding paper 3 is temporally fixed 4 between >=1 to 50cm from the outer peripheral front end 5. The temporally fixing 4 is strong enough to be unfastened by 1 to 300g/cm in a tangent direction; the temporizing fixing is more preferable to be unfastened by allow taking of 5 to 150g/cm, and it is still more preferable to be unfastened by 10 to 100g/cm. The temporally fixing 4 may be performed by gluing or double coated adhesive tapes, etc. The tension at the time of winding the photosensitive material and the light shielding paper on the spool 1 is preferably 1 to 100kg/m and is more preferably 2 to 50kg/m and further preferably 3 to 30kg/m.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD [0001] The present invention has excellent handleability.
The present invention relates to a silver halide photographic light-sensitive material and a method of winding the same, and particularly to a silver halide photographic light-sensitive material wound in a roll together with a light-shielding paper and a method of winding the same.

[0002]

2. Description of the Related Art A silver halide photographic light-sensitive material using a polyester support (hereinafter sometimes abbreviated as "polyester light-sensitive material") is described in JP-A-6-35118 or the like. A silver halide photographic light-sensitive material using the above as a brown-sensitive material has not yet been commercialized. When trying to prepare a brownie light-sensitive material using the polyester light-sensitive material, it was found that there was a problem that the light-sensitive material was unwound from the spool and exposed when the camera was loaded.

[0003] Unlike the 135 system, the Browney system does not have a photosensitive material loaded in the patrone, and also has a long photosensitive material in the middle of the surface of a long light-shielding paper that is wider than the photosensitive material. The back side of the material is piled up, rolled together on a spool with a flange, and the light is shielded simply by fixing the surface of the outermost end of the long light-shielding paper to the back side of the already-wound light-shielding paper (by sticking it). Photographic material products. Since the brownie system is a photographic photosensitive material product as described above, the photosensitive material entrapped between the light-shielding papers is shielded from light by the edge of the light-shielding paper being in close contact with the flange of the spool. is there. The appearance of the photographic light-sensitive material product of the blow system is as shown in FIG. That is,
The photographic light-sensitive material product of the brownie system, which is shielded from light as described above, is wound together with the light-shielding paper 3 on the winding spool 1 with the flange 2, and the leading end 5 of the light-shielding paper 3 is placed on the surface of the light-shielding paper 3. With a seal 6 above. As described above, when loading the photographic light-sensitive material product of the brownie system, which is shielded from light, when loading the photographic light-sensitive material product into the camera, the stopper 6 at the end of the light-shielding paper 3 is removed, and the end of the light-shielding paper 3 is lifted up by the camera. At this time, if the photosensitive material wound in a roll is loosened from the spool on the product side, the light-shielding paper and the photosensitive material may come out above the flange of the spool on the product side, or the light-shielding There has been a problem that the edge of the paper may be displaced from the flange of the spool, and the light-sensitive material may be exposed to light entering through the gap of the light-shielding paper.

Heretofore, a photosensitive material used in a brownie system has a support made of cellulose triacetate (usually called TAC). For this reason,
In the system product, the photosensitive material of the cellulose triacetate support did not unwind as described above because it had a strong curl in a short time when wound around the spool. But,
Since a polyester support, especially a polyester support described in JP-A-6-035118, is hard to be curled, a blow-near system product using a photosensitive material of the polyester support is easily unwound and exposed to light when the camera is loaded. The product is prone to problems.

[0005]

SUMMARY OF THE INVENTION The present invention provides a
In the system, we provide a photosensitive material product with a polyester support that is easy to handle, and does not cause failure such as exposure when winding the silver halide photographic material around the spool of the camera. To provide a winding method.

[0006]

The object of the present invention has been attained by the following means. (1) A silver halide photographic light-sensitive material using a polyester support is wound together in a roll shape with the light-shielding paper facing outward, and the light-shielding paper is temporarily fixed between 1 cm and 50 cm from the outer peripheral tip. A method for winding a silver halide photographic light-sensitive material. (2) The method according to (1), wherein the width of the silver halide photographic material is 30 mm or more and 100 mm or less, and the length is 50 cm or more and 3 m or less. (3) The thickness of the polyester support is 80 μm or more and 1
The method for winding a silver halide photographic light-sensitive material according to the above (1) or (2), wherein the thickness is 30 μm or less, and the main component is polyethylene naphthalate.

[0007] More preferably, the object of the present invention is:
This was achieved by the following means. (4) The polyester support is polyethylene-2,
The method for winding a silver halide photographic light-sensitive material according to the above (3), which is 6-naphthalate. (5) The method according to (4), wherein the polyester support comprises a naphthalenedicarboxylic acid component, a terephthalic acid component, and an ethylene glycol component. (6) The polyester support according to any one of (3) to (5), wherein the polyester support is heat-treated at a temperature of 50 ° C. or higher and a glass transition temperature (Tg) of the polyester support or lower. Method of winding a silver halide photographic light-sensitive material. (7) A silver halide photographic material wound by the method according to any one of the above (1) to (6).

[0008]

DETAILED DESCRIPTION OF THE INVENTION The silver halide photographic light-sensitive material using a polyester support of the present invention is wound together in a roll with the light-shielding paper facing outward, and the light-shielding paper is 1 cm or more and 50 cm from the outer peripheral tip. When the silver halide photographic light-sensitive material is loaded into a camera, the winding is not practically loosened by the method for winding the silver halide photographic light-sensitive material, which is temporarily fixed between ,
For this reason, there is no loosening of the winding that would cause exposure within the time until the brownie sensitive material is loaded into the camera and the lid is closed. The "roll loosening time" which is a problem in the present invention is the time required for the photosensitive material wound around the spool to be unwound when the seal at the end is removed, that is, the diameter of the flange of the spool. It refers to the time that protrudes.
When the light-sensitive material is smaller than the flange diameter, the light-sensitive material is shielded from light. However, when the light-sensitive material is unwound more than this diameter, the light-sensitive material starts to be irradiated. The "winding loosening time" of the present invention is preferably 30 seconds or more, more preferably 3 minutes or more, and even more preferably 10 minutes or more. This is the time required for loading the photosensitive material into the camera, and if it is not unwound more than this range, it can be used without practical problems.
On the other hand, there is no particular upper limit on the winding loosening time, and the most preferable one is one having no winding loosening forever.

According to the present invention, in order to achieve such a loosening time, 1 cm or more and 50 cm or more from the outer peripheral end of the light-shielding paper.
This is a winding method for temporarily fixing between. Hereinafter, this method will be described in detail. Since the brownie light-sensitive material is wound around the winding spool of the camera, the leading end is usually wound with only light-shielding paper. Between 1 cm and 100 cm inside from the tip of this part, more preferably 3 cm and 80 c
m, and more preferably, between 6 cm and 60 cm. If you set the length so that the outer part from the temporary fixing part is wound around the winding spool of the camera, the inner part does not come loose from the temporary fixing at this time,
It can be loaded into the camera without exposure. After loading, this tack will come off when it is wound up in the camera. For this reason, if the temporary fixing is firmly glued, it will not be displaced in the camera and will cause a failure. Therefore, gluing is performed so as to be shifted by the winding torque of the camera. On the other hand, if the temporary fixing is too weak, the temporary fixing may come off during loading and may be exposed to light. The strength of the temporary fixing is preferably from 1 g to 300 g per 1 cm width in the tangential direction, and preferably from 5 g to 15 g per 1 cm width.
More preferably, it can be obtained at 0 g or less, more preferably at least 10 g and at most 100 g per 1 cm width. The temporary fixing may be performed by gluing or a double-sided tape. The temporary fixing strength can be set to the above-mentioned temporary fixing strength depending on the temporary fixing position, area, glue, and type of double-sided tape.

1 cm or more from the outer edge of the light-shielding paper to the photosensitive material
FIG. 1 is an explanatory view of a method of temporarily fixing the front and back surfaces of the light-shielding paper in contact with each other in a range of 0 cm so that the photosensitive material is not unwound. FIG. 1 is an explanatory view for explaining temporary fixing, and FIG. 2 is an external view in which a light-shielding paper of a photosensitive material product is rolled up and sealed, and this drawing is used to prevent unraveling of the photosensitive material. It is not limited to the case of temporarily fixing, but is an external view of a general photosensitive material product of a brownie system product. In FIG. 1, reference numeral 4 denotes a temporary fixing place for temporarily fixing the front and back surfaces of the light-shielding paper which are in contact with each other so as not to be unwound, 1 is a sprawl, 2 is a flange, 3 is a light-shielding paper, and 5 is an outer periphery of the light-shielding paper. In FIG. 2, reference numeral 6 denotes a seal, and reference numeral 5 denotes a light-shielding paper outer peripheral end.

The photosensitive material and the light-shielding paper are wound around the spool by the above-mentioned method, and the tension at the time of winding is 1 kg / m to 100 kg.
/ m or less, preferably 2 kg / m or more and 50 kg / m or less, more preferably 3 kg / m or more and 30 kg / m or less. The tension may be constant, and the tension may be reduced or increased outwardly. The diameter of the spool shaft is preferably 3 mm or more and 30 mm or less, more preferably 5 mm or more and 20 mm or less, and even more preferably 8 mm or more and 18 mm or less. The width of the spool is preferably 60 mm or more and 80 mm or less, more preferably 61 mm or more and 75 mm or less, and 62 m or more.
m or more and 70 mm or less are more preferable. The diameter of the flange of the spool is preferably 10 mm or more and 60 mm or less.
5 mm or more and 50 mm or less are more preferable, and 20 mm or more and 40 mm or less are still more preferable. The material of the spool is preferably a thermoplastic resin, for example, polystyrene, polyethylene, polypropylene, polymethyl methacrylate, vinyl polymers such as polyvinyl chloride, polyethylene terephthalate, polybutylene terephthalate, polyester polymers such as polyethylene naphthalate, Examples thereof include polyamide-based polymers such as 6-nylon and 6,6-nylon, and polycarbonate. It is also preferable to knead these dyes with dyes and pigments for light shielding.

The light-shielding paper preferably has a thickness of 40 to 200 μm, more preferably 50 to 160 μm, and more preferably 60 to 140 μm.
m is more preferred. The width is preferably not less than the width (W) of the light-sensitive material film and not more than W + 20 mm, more preferably not less than W and not more than W + 10 mm, and further preferably not less than W and not more than W + 5 mm. The light-shielding paper starts to be wound at least 5 cm or more, more preferably 15 cm or more, even more preferably 30 cm or more from the inside end of the photosensitive material film, and the outer end is at least 1 cm to 100 cm, more preferably 3 c.
m to 80 cm, more preferably 5 cm to 60
cm or less before the photosensitive film. The light-shielding paper is preferably black for that purpose. The light-shielding paper may be not only paper but also plastic or the like.

It is preferable to use a polyester support as the light-sensitive material rolled up by such a method. Preferred dicarboxylic acids as constituent units of the polyester are (2,6-,
1,5-, 1,4-, 2,7-) naphthalenedicarboxylic acid (NDCA), terephthalic acid (TPA), isophthalic acid (IPA), orthophthalic acid (OPA), paraphenylenedicarboxylic acid (PPDC) and esters thereof Can be mentioned. Of these, 2,6-naphthalenedicarboxylic acid (2,6-NDCA) and esters thereof are preferable. However, when a hydrophilic monomer such as 3-sulfoisophthalate or sulfonaphthalenedicarboxylate is copolymerized, the mechanical strength (particularly, flexural elasticity) due to water absorption during development processing is reduced, which is not preferable. . The diol is preferably ethylene glycol (EG), cyclohexane dimethanol (CHDM), neopentyl glycol (NPG), bisphenol A (BPA), or biphenol (BP).
Are preferred. Polyalkylene glycols such as polyethylene glycol, polypropylene glycol, and polytetramethylene glycol are not preferred because they cause a decrease in mechanical strength (particularly, bending elasticity) due to water absorption during development processing.

In a preferred polyester containing polyethylene naphthalate as a main component, the content of naphthalenedicarboxylic acid contained in all dicarboxylic acid residues is preferably 50 mol% or more. More preferably, 60 mol%
Above, more preferably 70 mol% or more. It may be a copolymer or a polymer blend. In the case of copolymerization, units such as terephthalic acid, bisphenol A, and cyclohexane dimethanol may be copolymerized in addition to the naphthalenedicarboxylic acid unit and the ethylene glycol unit. Among these, the most preferred is a copolymer of terephthalic acid units from the viewpoint of mechanical strength.

Preferred partners for the polymer blend are polyethylene terephthalate (PET), from the viewpoint of compatibility.
Polyarylate (PAr), polycarbonate (P
C) and polyesters such as polycyclohexanedimethanol terephthalate (PCT).
Among them, PE is preferable in terms of mechanical strength and cost.
A polymer blend with T.

From the viewpoint of heat resistance, these polyesters preferably have a glass transition temperature (Tg) of 65 ° C. or higher, more preferably 80 ° C. or higher, and further preferably 10 ° C. or higher.
0 ° C. or higher. These polyester synthesis methods are described, for example, in Polymer Science Laboratory, Vol. 5, “Polycondensation and Polyaddition”.
(Kyoritsu Shuppan, 1980) pp. 103-136,
“Synthetic Polymer V” (Asakura Shoten, 1971), pages 187 to 286, JP-A-5-163337, and JP-A-5-163337;
179052, 2-3-420, 1-275628,
JP-A-62-290722 and 61-241316 can be used as a reference. The polymer thus polymerized preferably has an intrinsic viscosity of 0.40 or more and 0.9 or less measured at 35 ° C. in an orthochlorophenol solvent. Are more preferred.

Preferred examples of the specific compound of the polyester used in the present invention are shown below, but the present invention is not limited thereto. Polyester homopolymer Example HP-1: Polyethylene naphthalate (PEN) [2,6-naphthalenedicarboxylic acid (NDCA) / ethylene glycol (EG) (100/100)] (PEN) Tg = 119 ° C HP-2 : Polyethylene terephthalate (PET) {terephthalic acid (TPA) / ethylene glycol (EG) (100/100)} (PET) Tg = 69 ° C

Polyester copolymer example (numbers in parentheses indicate molar ratio) CP-1: 2,6-NDCA / TPA / EG (70/30/100) Tg = 98 ° C CP-2: 2,6- NDCA / TPA / EG (80/20/100) Tg = 105 ° C. CP-3: 2,6-NDCA / TPA / EG (90/10/100) Tg = 110 ° C. CP-4: 2,6-NDCA / TPA / EG / BPA (50/50/75/25) Tg = 112 ° C CP-5: 2,6-NDCA / EG / BPA (100/25/75) Tg = 155 ° C CP-6: 2,6- NDCA / EG / CHDM / BPA (100/25/25/50) Tg = 150 ° C. CP-7: 2,6-NDCA / NPG / EG (100/70/30) Tg = 145 ° C. CP-8: 2 6-NDCA / G / BP (100/20/80) Tg = 130 ℃

PB-1: PEN / PET (60/40) Tg = 95 ° C. PB-2: PEN / PET (80/20) Tg = 104 ° C PB-3: PEN / PET (90/10) Tg = 109 ° C PB-4: PAr / PEN (15/85) Tg = 138 ° C PB-5: PAr / PCT / PEN (10/10/80) Tg = 135 ° C PB-6: PAr / PC / PEN (10/10/80) Tg = 140 ° C An ultraviolet absorber may be added to these polyesters for the purpose of imparting stability over time. It is desirable that the ultraviolet absorber has no absorption in the visible region, and the amount of the ultraviolet absorber is usually 0.5% by weight based on the weight of the polymer film.
To 20% by weight, preferably about 1% to 10% by weight. If the amount is less than 0.5% by weight, the effect of suppressing deterioration of ultraviolet rays cannot be expected. Examples of the ultraviolet absorber include benzophenone-based, benzotriazole-based, and salicylic acid-based ultraviolet absorbers.

In order to avoid the light piping phenomenon, there are known a method of adding inert inorganic particles to a film, a method of adding a dye, and the like. The method based on the addition of a dye is preferable because it does not significantly increase the film haze. As dyes, Mitsubishi Chemical's Diaresin,
The purpose can be achieved by mixing a dye commercially available for polyesters such as Nippon Kayaku Kayset. Particularly, from the viewpoint of heat stability, anthraquinone dyes can be used. For example, those described in JP-A-7-168309 and Japanese Patent Application No. 6-265180 can be preferably used.

The polyester film according to the present invention can be imparted with lubricity depending on the use. For example, kneading of an inert inorganic compound or application of a surfactant is used as a general method. Such inert inorganic particles include SiO ₂ , TiO ₂ , BaSO ₄ , CaC
O ₃ , talc, kaolin and the like are exemplified. The preferable addition amount is 5 ppm or more and 1000 ppm or less, more preferably 10 ppm or more and 500 ppm or less, and further preferably 2 ppm or more.
0 ppm or more and 200 ppm or less. The size of the particles to be added is preferably 0.01 μm or more and 10 μm or less, more preferably 0.05 μm or more and 5 μm or less.
It is more preferably 1 μm or more and 2 μm or less.

The base thickness is preferably 80 μm or more and 130 μm or less. More preferably 85 μm or more and 125 μm or less, still more preferably 90 μm or more and 120 μm or less.
m or less. Below this range, the base stiffness (strength of the waist) is weakened, and the twisting curl due to the shrinkage stress of the photosensitive layer caused by low humidity tends to increase, which is not preferable. On the other hand, if it exceeds this range, the stiffness becomes too strong, and it becomes difficult to wind around a winding shaft of a camera or a laboratory device, which is not preferable in handling.

The support thus formed was applied to a support at 50 ° C.
At a temperature of not less than Tg and more preferably not less than 55 ° C.
It is preferable to perform a heat treatment (hereinafter sometimes abbreviated as BTA treatment) at -2 ° C or lower, more preferably 60 ° C or higher and Tg-5 ° C or lower. The preferred heat treatment time is from 1 hour to 500 hours, more preferably from 5 hours to 200 hours, even more preferably from 10 hours to 150 hours. Such a heat treatment is preferably performed on the support after film formation, preferably after the following surface treatment, and further preferably after the conductive layer, undercoat and back layer are provided.

A photosensitive layer and a back layer are coated on the polyester support prepared in this way, and it is preferable to perform a surface treatment before that to ensure adhesion. Surface treatment is chemical treatment, mechanical treatment, corona treatment, flame treatment,
Examples include ultraviolet treatment, high-frequency treatment, glow treatment, active plasma treatment, laser treatment, mixed acid treatment, and ozone oxidation treatment. Of these, corona treatment, ultraviolet treatment, glow treatment, and flame treatment are particularly effective. -The process is valid. These can be carried out in accordance with the method described in "Invention Association Disclosure Technique, Official Technique No. 94-6023".

The undercoat layer of the present invention may contain various additives as necessary. Examples include surfactants, antistatic agents, dyes for coloring antihalation agents, pigments, coating aids, antifoggants and the like. Further, the undercoat layer of the invention may contain inorganic or organic fine particles as a matting agent to such an extent that the transparency and granularity of the image are not substantially impaired. As a matting agent for inorganic fine particles, silica (SiO ₂ ), titanium dioxide (TiO ₂ ), calcium carbonate, magnesium carbonate and the like can be used. Organic fine particle matting agents include polymethyl methacrylate, cellulose acetate propionate,
Polystyrene, soluble in the processing solution described in U.S. Pat. No. 4,142,894, U.S. Pat.
No. 6,706 can be used. The average particle size of these fine particle matting agents is 0.1.
It is preferably from 01 to 10 μm. More preferably,
It is 0.05-5 μm. In addition, the content is 0.5 to
600 mg / m ² is preferred, and more preferably 1-4 mg / m ^2.
00 mg / m ² . The details of these undercoating materials are described in "Invention Association Technical Report No. 94-6023" and can be carried out in accordance therewith.

In the present invention, either a light-sensitive material having a photosensitive silver halide emulsion layer on both sides or a light-sensitive material having only one side may be used. When the emulsion layer is provided on one side, a back layer is preferably provided on the opposite side of the present support. The back layer generally has several constituent layers in order to exhibit various functions. Examples thereof include an adhesion layer, an antistatic layer, a scratch resistance-imparting layer, a slip layer, an anti-sticking layer, and an anti-curl layer. Further, US Pat. No. 3,782,947 and US Pat.
A transparent magnetic recording layer as described in No. 5 may be provided. The configuration order and thickness of these layers are not particularly limited, and the same functional layer may be two or more layers in some cases. The thickness of each layer is preferably 0.0001 μm.
m to 10 μm, and more preferably 0.001 μm to 5 μm. The thickness of all layers is preferably from 0.001 to 10 μm.

As the slipping agent for the sliding layer, higher fatty acids and derivatives thereof, and higher alcohols and derivatives thereof include
Higher fatty acids, metal salts of higher fatty acids, higher fatty acid esters, higher fatty acid amides, polyhydric alcohol esters of higher fatty acids, etc., higher fatty alcohols, monoalkyl phosphites, dialkyl phosphites and trialkyl phosphites of higher fatty alcohols Phyte, monoalkyl phosphate, dialkyl phosphate, trialkyl phosphate, higher aliphatic alkylsulfonic acid, and amides The details of the materials constituting these sliding layers are described in "Invention Association Technical Report No. 94-6023.
No., and can be implemented in accordance with this.

The use amount of these slip agents is not particularly limited, but the content is preferably 0.001 to 0.1 g / m ² , more preferably 0.1 to 0.1 g / m ² in order to exhibit sufficient slip and scratch resistance. 005 to 0.05 g / m ² . Since these slip agents have high hydrophobicity, they often have poor solubility in solvents. Therefore, there is a method of dissolving in a nonpolar organic solvent such as toluene or xylene or a method of dispersing in a coating solution, but a method of dispersing a nonpolar organic solvent is preferable because it is difficult to handle.

A silver halide photosensitive layer is coated on the support on which the undercoat layer and the back layer are coated as described above. The silver halide emulsion layer may be any of black and white for color, and may be provided with a photosensitive layer as described in Hatsumei Kyokai Disclosure Technical Publication No. 94-6023. Further, the photosensitive material thus prepared is slit. The slit width is 3
0 mm or more and 100 mm or less are preferable, and 40 mm or more and 8 mm or more.
0 mm or less is more preferable, and 50 mm or more and 70 mm or less are still more preferable. Exceeding this range is not preferable because the camera cannot be loaded. On the other hand, if it is less than this range, the gap between the spool flange and the end face of the light-sensitive material becomes large, and even if the outside of the spool is not loosened, light is easily exposed from the gap, which is not preferable. The preferred film length is 2
It is preferably from 0 cm to 5 m, more preferably from 30 cm to 4 m, and still more preferably from 40 cm to 3 m. Beyond this range, the loosening force of the photosensitive material tends to increase, and it becomes difficult to secure a winding loosening time of 30 seconds or more. On the other hand, if it is less than this range, the number of frames to be photographed is small, and the trouble of loading the camera is undesirably increased. This is wound around the spool together with the light-shielding paper according to the method described above. Thereafter, it is preferable not to store the cartridge in a cartridge (patrone).

Finally, the evaluation and measurement methods employed in the present invention will be described. (1) Roll loosening time After removing the seal at the top end of the outermost periphery, the photosensitive material film loosens,
The time it takes to go outside the spool flange. (2) Radius of curvature of outermost curl The diameter of the outermost curl of the photosensitive material is measured with a caliper at 25 ° C. and 60% RH.
Radius of curvature. (3) Glass transition temperature (Tg) Measured using a differential thermal analyzer according to the following method. (1) A sample of 10 mg was set in an aluminum pan in a nitrogen stream. (2) Heat up to 300 ° C at 20 ° C / min (1st run) (3) Rapidly cool to room temperature to make it amorphous (4) Heat up again at 20 ° C / min (2nd run) Baseline with 2nd run The arithmetic mean of the temperature at which deviation began to occur and the temperature at which the temperature returned to a new baseline was defined as Tg.

[0031]

EXAMPLES The present invention will be further described below with reference to examples, but the present invention is not limited to these examples. (1) Preparation of polyester (1-1) Polymerization of PEN 2,6-naphthalenedicarboxylic acid dimethyl ester 10
0 parts, 58 parts of ethylene glycol, 0.029 parts of manganese acetate tetrahydrate, 0.028 parts of antimony trioxide, and 0.1% of spherical silica particles having an average particle diameter of 0.3 μm are added, and the mixture is stirred. Heated to 200 ° C. The temperature was raised to 235 ° C. while removing by-produced methanol. After the by-product of methanol was completed, 0.03 part of trimethyl phosphoric acid was added, and 285 ° C.
The pressure was reduced to 0.3 Torr while raising the temperature to 2 hours, and the reaction was performed. Further, based on the solid content, the dyes 1,5-bis (p-methoxyphenylamino) anthraquinone and 1,4-bis (p-tert-butylphenylamino) -5,8 described in Japanese Patent Application No. 5-316676 are disclosed. 54 ppm each of dihydroxyanthraquinone. This intrinsic viscosity was 0.62.

(1-2) Polymer blend (PB-2)
Preparation of PET having an intrinsic viscosity of 0.58 prepared by a conventional method and PEN prepared by the above-described method in a weight ratio of 2: 8, followed by mixing at a weight ratio of 160:
After drying at ℃ for 19 hours, it was extruded at 310 ℃ using a twin screw extruder. The residence time in the extruder was 4 minutes. (1-3) Preparation of Copolymer (CP-2) 2,6-Naphthalenedicarboxylic acid dimethyl ester: terephthalic acid dimethyl ester (80 parts: 20 parts) is dispersed in 58 parts of ethylene glycol, and then manganese acetate is dispersed. 0.029 parts of tetrahydrate, 0.028 parts of antimony trioxide, 0.1% of spherical silica particles having an average particle diameter of 0.3 μm are added,
Heat to 200 ° C. with stirring. The temperature was raised to 235 ° C. while removing by-produced methanol. After the by-product of methanol was completed, 0.03 part of trimethyl phosphoric acid was added, and 285
The pressure was reduced to 0.3 Torr while the temperature was raised to 0 ° C, and the reaction was performed for 2 hours. Further, with respect to the solid content, Japanese Patent Application No. 5-316676.
Nos. 1,5-bis (p-methoxyphenylamino) anthraquinone and 1,4-bis (p-tert.
(Butylphenylamino) -5,8-dihydroxyanthraquinone was added in an amount of 54 ppm. This intrinsic viscosity was 0.65.

(2) Film formation of polyester support The polyester prepared by the above method is formed into pellets,
It dried at 160 degreeC pressure reduction for 19 hours. This was extruded using an extruder equipped with a 10 μm mesh filter.
After melting at 0 ° C., an extruded unstretched film on a casting drum at 50 ° C. was prepared from a T-die. Table 1 shows the thickness unevenness at this time. Using an infrared heater, this was heated to 130 ° C. in the case of PEN while the PB-
2, In the case of CP-2, the length (M
The film was stretched 3.2 times in the direction D). Furthermore, the film was stretched 3.5 times in the transverse (TD) direction while heating at 140 ° C. for PEN and 130 ° C. for PB-2 and CP-2 while heating at 140 ° C. Thereafter, while being heated to 245 ° C. in the case of PEN, heat fixing was performed for 10 seconds while heating to 235 ° C. in the case of PB-2 and CP-2. The PB- thus formed into a film
2. The ratio (N / E / T ratio) between the naphthalenedicarboxylic acid component and the terephthalic acid component sandwiching the ethylene glycol component of the CP-2 support was 28% and 31%, respectively.

[0034]

[Table 1]

(3) Preparation of light-sensitive material The support prepared by the above-described method was applied to the support described in JP-A-8-57951.
The temperature of the support is set to T as described in Example 1 of
The glow discharge surface treatment was performed for 2 seconds under the conditions of g-5 ° C., a reduced pressure of water vapor of 75% under a reduced pressure of 0.2 Torr, and a discharge frequency of 30 kHz. After the above-mentioned surface treatment, the back first layer was applied. On the other hand, according to Example 1 of JP-A-8-57951, the undercoat layer was applied after the heat treatment (BTA treatment) was performed, and the backing second layer was formed. Coating, back third layer coating, color
Preparation of the negative photosensitive material was performed in this order. (4) Entangling of photosensitive material After cutting the photosensitive material film to the width and length shown in Table 1,
The emulsion was wound inward and wound together with black light-shielding paper having a thickness of 85 μm and a width of 3 mm wider than the light-sensitive material film. At this time, the light-shielding paper was made 20 cm longer than the light-sensitive material film on the inner peripheral side (spool axis side) and 45 cm longer on the outer peripheral side. After winding this around a spool having a shaft of 11.5 mm in diameter, the outermost end of the light-shielding paper was sealed with an adhesive tape.

Examples-1 to 7 Glues were applied to the locations shown in Table 1 so that the temporary fixing was released with the strength shown in Table 1. Note that this strength is a value obtained by dividing a load at which the temporary stop is released when the tip of the light-shielding paper is pulled in the tangential direction by a width of the light-shielding paper. (5) Results By implementing the present invention, the photosensitive material could be easily loaded on the camera without being unwound.

[0037]

According to the method for winding a silver halide photographic material having a loosening time of 30 seconds or more using a polyester support, and the silver halide photographic material wound by this method, halogen is excellent in handleability. A silver halide photographic light-sensitive material and a method for winding the same can be provided.

[Brief description of the drawings]

FIG. 1 shows a roll of a silver halide photographic light-sensitive material and light-shielding paper wound around a spool, 1 cm from the outer edge of the light-shielding paper.
It is explanatory drawing which shows the part temporarily fixed between 50 cm or more.

FIG. 2 is an explanatory view showing a state where the silver halide photographic light-sensitive material of FIG. 1 is wound and sealed.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Spool 2 Flange 3 Shielding paper 4 Temporary fixing point 5 Shielding paper outer edge 6 Seal

──────────────────────────────────────────────────の Continued on front page (51) Int.Cl. ⁶ Identification symbol FI // C08J 7/00 CFD C08J 7/00 CFD 301 301

Claims (7)

[Claims] 1. A silver halide photographic light-sensitive material using a polyester support is wound together in a roll shape with the light-shielding paper facing outward, wherein the light-shielding paper is at least 1 cm from the outer peripheral tip.
A method for winding a silver halide photographic light-sensitive material, wherein the light-sensitive material is temporarily fixed at a distance of 0 cm. 2. The silver halide photographic light-sensitive material has a width of 3
0 mm or more and 100 mm or less and 50 cm or more in length 3
2. The method for winding a silver halide photographic light-sensitive material according to claim 1, wherein m is equal to or less than m. 3. The polyester support has a thickness of 80 μm.
3. The method according to claim 1, wherein the main component is polyethylene naphthalate, and the main component is polyethylene naphthalate. 4. The method according to claim 3, wherein the polyester support is polyethylene-2,6-naphthalate. 5. The method according to claim 4, wherein the polyester support comprises a naphthalenedicarboxylic acid component, a terephthalic acid component, and an ethylene glycol component. 6. The polyester support according to claim 3, wherein the polyester support is heat-treated at a temperature not lower than 50 ° C. and not higher than the glass transition temperature (Tg) of the polyester support. The method for winding the silver halide photographic light-sensitive material described above. 7. A silver halide photographic light-sensitive material wound by the method according to claim 1. Description: