JP2002037897A - Thermoplastic substrate and silver halide photosensitive material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a thermoplastic substrate easy to be cut, with reduced occurrence of flashes by slitting and drilling, and to provide a silver halide photosensitive material with scarce troubles on pictures. SOLUTION: The thermoplastic substrate has breaking strength of 5 to 18 kg/mm2 both in TD and MD directions, elongation at break of 20 to 140% both in TD and MD directions, and deviation of crack tear resistance of 0.3 to 1.8 kg/mm2 both in TD and MD directions. The silver halide photosensitive material utilizes the support.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a thermoplastic support which does not generate cutting debris when cutting a film, a silver halide photographic light-sensitive material excellent in photographic properties, and a film-integrated camera.

[0002]

2. Description of the Related Art Cellulose triacetate (TAC) has been used as a support for a silver halide photographic light-sensitive material for a 135 system and a film-integrated camera using the same.
However, the TAC support had low mechanical strength, particularly low elasticity, and could not be thinned. In order to solve such a problem, Japanese Patent Application Laid-Open No. 6-35118 discloses a silver halide photographic material using polyethylene naphthalate (PEN) as a support (hereinafter, may be abbreviated as a light-sensitive material). PEN is disclosed in JP-A-6-82981.
A film-integrated camera using a silver halide photographic light-sensitive material as a support is described. However, when a photographic material was prepared in accordance with this patent and used in a 135 system, a cutting failure occurred at a lab (developer) at a splicer, a negative cutter, a notcher, or the like. In addition, a screen failure occurred due to the adhesion of fine dust on the surface of the photosensitive material. Such a failure particularly remarkably occurs in a film-integrated camera, and improvement has been desired. Further, Japanese Patent Application Laid-Open No. 11-202116 describes a method of improving cuttability by blending polyesters such as PEN having different intrinsic viscosities to form a film, but the effect was insufficient.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a thermoplastic support which does not generate cutting debris when the film is cut, and to provide a silver halide photographic light-sensitive material which is easy to cut and hardly causes a screen failure. is there.

[0004]

The present invention provides the following (1) to
Achieved by (9). (1) The breaking strength in both the width direction (TD) and the longitudinal direction (MD) is 5 kg / mm ² or more and 18 kg / mm ² or less.
The breaking elongation of each of D and MD is 20% or more and 140% or less, and the rate of change in crack tear strength is 0.3 kg.
/Thermoplastic/1.8 kg / mm or less. (2) Both MD and TD have a crack tear strength of 4 kg
The thermoplastic support according to the above (1), wherein the delamination whitening ratio of TD and MD is at least 0% and at most 50%, respectively. (3) The thermoplastic support as described in any one of (1) and (2) above, which has an endothermic peak at 100 JC to 170 JC of 0.3 J / g to 4 J / g. (4) The MD / TD ratio of the breaking strength, breaking elongation, crack tear strength change rate, and crack tear strength are all 0.8.
(1) to (4), wherein the number is 4 or more and less than 1.2.
The thermoplastic support according to any one of (3) and (2), which is a melt-formed film. (5) Any of (1) to (4) above, wherein the intrinsic viscosity is 0.25 or more and 0.48 or less, and the molecular weight distribution (Mw / Mn) is 2.1 or more and 3.0 or less. A thermoplastic support as described. (6) One monomer unit having an alicyclic structure in the main chain
The thermoplastic support according to any one of the above (1) to (4), wherein the content of the thermoplastic support is at least 15 mol% and not more than 15 mol%. (7) The thermoplastic support contains a polyester composed of a naphthalenedicarboxylic acid residue and an ethylene glycol residue in an amount of from 60 mol% to 100 mol%, and has a glass transition temperature (Tg) of from 90 ° C to 170 ° C. The thermoplastic support according to the above (5) or (6), wherein (8) A roll-shaped silver halide photographic material comprising the polyester support according to any one of the above (1) to (7). (9) A film-integrated camera using the roll-shaped silver halide photographic light-sensitive material according to (8).

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION The subject of the present invention has been intensively studied.
Burrs generated during (perforation) rub against the thick plate in the camera and peel off, or <2> debris generated when the slit end face rubs against the guide rail of the camera, rubs against the thick plate in the camera and peels off, It was clarified that this was transferred to the screen part and caused a screen failure. These problems are not only easy to generate burrs but also easy to rub and peel off. The peeling of debris at the time of perforation of <1> is particularly likely to occur at the corner of a rectangular hole peculiar to perforation (it does not occur at a semicircular perforation such as a notch, but is a problem of rectangular perforation). This is because the corner portion is a contact point between MD and TD, and there is a difference in physical properties. This problem is not a problem in the APS with little perforation, and is a problem unique to the 135 system. The rubbing of the end face of <2> is particularly likely to occur in a 135 system having a larger film width than an APS film. This becomes remarkable with the occurrence of gutter-like curl due to shrinkage of the emulsion layer under low humidity. However, when the film width is large, a large gutter is formed and the edge is strongly rubbed. These failures are particularly likely to occur with a film-integrated camera. It has been found that the thick plate is made of a plastic member, the peeled pieces are more easily transferred by static electricity, and a screen failure occurs significantly. Further, it has been found that these failures are unlikely to occur when the drilling blade and cutting blade are new, but are likely to occur when the blade is worn or the adjustment is slightly shifted.

In other words, in order to reduce the occurrence of burrs at the time of perforation and slitting, peeling, and transfer within the camera, and to solve the screen failure of the present invention, the thermoplastic support of the present invention comprises:
The breaking strength in both the width direction (TD) and the longitudinal direction (MD) is preferably 5 kg / mm ² or more and 18 kg / mm ² or less,
More preferably 6 kg / mm ² or more and 16 kg / mm ² or less, still more preferably 7 kg / mm ² or more and 14 kg / m ²
m ² or less. Elongation at break of TD and MD is 20% or more 1
40% or less is preferable, and 30% or more is more preferable.
0% or less, more preferably 40% or more and 100% or less. The rate of change of the crack tear strength of TD and MD is preferably from 0.3 kg / mm to 1.8 kg / mm, more preferably from 0.5 kg / mm to 1.6 kg / mm.
mm or less, more preferably 0.6 kg / mm or more.
It is 5 kg / mm or less. The rate of change in crack tear strength is the slope when the tear length is plotted with the residual width of the sample (the value obtained by subtracting the crack length from the sample width) on the horizontal axis when the tear test is performed with the crack length changed. Refers to
It is a parameter indicating the magnitude of the force required for tear propagation. 11. The crack tear strength of TD and MD is 4 kg or more.
5 kg or less is preferable, and more preferably 5 kg or more and 12
kg or less, more preferably 6 kg or more and 11.5 kg or less. Delami whitening rate of TD and MD is 0% or more and 50%
Or less, more preferably 0% or more and 45% or less,
More preferably, it is 0% or more and 40% or less. The breaking strength, the breaking elongation, the crack tear strength and the gradient of the crack length, and the MD / TD ratio of the crack tear strength were all 0.
It is preferably 84 or more and less than 1.2, more preferably 0.86 or more and 1.18 or less, and still more preferably 0.1 or more.
It is 88 or more and 1.16 or less. Further, the thermoplastic support of the present invention is preferably a melt-formed film, and more preferably a thermoplastic support stretched at least once in each of longitudinal and transverse directions after the melt-formed film.

As such a thermoplastic support, a vinyl polymer having an alicyclic group in its main chain or a polystyrene-based polymer is preferred. Specifically, syndiotactic polystyrene (SPS), norbornene and the like are preferable. Examples thereof include cyclopolyolefins obtained by ring-opening polymerization of ethylene and cyclopolyolefins obtained by addition-polymerization of norbornene and ethylene. Among these, those polymerized using a metallocene catalyst are more preferable. More preferred thermoplastic supports include polyester-based polymers, which are formed from dicarboxylic acids and diols,
Polyethylene terephthalate (PET) -based polyester using phthalic acid as a dicarboxylic acid in an amount of 50 mol% or more, and polyethylene naphthalate (PEN) -based polyester using a naphthalenedicarboxylic acid in an amount of 50 mol% or more as a dicarboxylic acid are preferable. More preferred is a PEN-based support. In the PEN-based support, naphthalenedicarboxylic acid residues in all dicarboxylic acid residues are preferably 60 mol% or more and 100 mol% or less, more preferably 70 mol% or more and 100 mol% or less, and still more preferably 80 mol% or more. 100
Mol% or less. 2, as naphthalenedicarboxylic acid
Examples thereof include 6-, 1,5-, 1,4-, 2,7-naphthalenedicarboxylic acid, and more preferred is 2,6-naphthalenedicarboxylic acid.

[0008] Ethylene glycol residues as total diol residues are preferably from 60 mol% to 100 mol%, more preferably from 70 mol% to 100 mol%,
More preferably, it is 80 mol% or more and 100 mol% or less. Most preferred is an intrinsic viscosity of 0.25 or more, 0.48 or more.
Hereinafter, a PEN homopolymer having a molecular weight distribution of 2.1 or more and 3.0 or less is preferred, and a copolymer polyester is more preferred. When a copolymerized polyester is used, preferred copolymerized dicarboxylic acid components include adipic acid (AA), terephthalic acid (TPA), isophthalic acid (IPA), (1,
5-, 1,4-, 2,7-) naphthalenedicarboxylic acid (NDCA), paraphenylenedicarboxylic acid (PPD)
C), decalin dicarboxylic acid (DCA), cyclohexane dicarboxylic acid (CHCA) and ester-forms thereof. Among these, PPD is particularly preferable.
C, DCA, CHCA in an amount of 3 mol% or more and 20 mol% or less,
More preferably, they are copolymerized in a range of 5 mol% to 15 mol%. Preferred copolymerized diol components include cyclohexane dimethanol (CHDM), decalin dimethanol (DDM), biphenol (BP), neopentyl glycol (NPG), and HOCH _2- (C ₆ H ₄ )-.
_{CH 2 OH, HOCH 2 - (} C 1 0 H 6) may be mentioned -CH ₂ OH. Particularly preferred are CHDM, DDM,
It is obtained by copolymerizing BP with 3 mol% to 20 mol%, more preferably CHDM with 5 mol% to 15 mol%. Specific examples of preferable compounds for the raw material of the thermoplastic support of the present invention are shown below, but the present invention is not limited to these.

1) Polyester-based polymer <1> Homopolymer HP-1: polyethylene-2,6-naphthalate (PEN) Tg = 119 ° C. <2> Example of copolymer (numbers in parentheses indicate molar ratio) CP-1 : 2,6-NDCA / EG / CHDM (100/80/20) Tg = 105 ° C CP-2: 2,6-NDCA / EG / CHDM (100/90/10) Tg = 110 ° C CP-3: 2 , 6-NDCA / EG / CHDM (100/93/7) Tg = 115 ° C CP-4: 2,6-NDCA / EG / CHDM (100/95/5) Tg = 116 ° C CP-5: 2,6 -NDCA / EG / DDM (100/90/10) Tg = 125 ° C CP-6: 2,6-NDCA / EG / DDM (100/95/5) Tg = 122 ° C CP-7: 2,6- NDCA / EG / BP (100/90/10) Tg = 96 ° C. CP-8: 2,6-NDCA / EG / BP (100/80/20) Tg = 91 ° C. CP-9: 2,6-NDCA / EG / NPG (100/90/10) Tg = 114 ° C. CP-10: 2,6-NDCA / EG / NPG (100/95/5) Tg = 106 ° C. CP-11: 2,6-NDCA / DCA / EG (85/15/100) Tg = 138 ° C CP-12: 2,6-NDCA / DCA / EG (75/25/100) Tg = 143 ° C CP-13: 2,6-NDCA / CHCA / EG ( 90/10/100) Tg = 112 ° C CP-14: 2,6-NDCA / CHCA / EG (95/5/100) Tg = 116 ° C CP-15: 2,6-NDCA / IPA / EG (70 / 30/10 0) Tg = 90 ° C CP-16: 2,6-NDCA / IPA / EG (90/10/100) Tg = 106 ° C CP-17: 2,6-NDCA / TPA / EG (80/20/100) Tg = 92 ° C. CP-18: 2,6-NDCA / AA / EG (90/10/100) Tg = 101 ° C. CP-19: 2,6-NDCA / PPDC / EG (95/5/100) Tg = 112 ° C CP-20: 2,6-NDCA / CHCA / EG / CHDM (90/10/80/20) Tg = 122 ° C CP-21: 2,6-NDCA / DCA / EG / CHDM (80/20 / 90/10) Tg = 129 ° C

2) Vinyl polymer molar ratio V-1: syndiotactic polystyrene Tg = 102 ° C. V-2: syndiotactic poly (styrene / paramethylstyrene) copolymer (95/5) Tg = 101 ° C. V -3: syndiotactic poly (styrene / paramethylstyrene) copolymer (90/10) Tg = 100 ° C. V-4: syndiotactic poly (styrene / paramethylstyrene) copolymer (90/10) Tg V-5: Norbornene / ethylene addition copolymer (metallocene catalyst) (80/20) Tg = 168 ° C V-6: Norbornene / ethylene addition copolymer (metallocene catalyst) (60/40) Tg = 148 ° C V-7: Norbornene / ethylene addition copolymer (metallocene catalyst) (50/50) Tg = 125 ° C V-8: Norbornene / ethylene addition copolymer (metallocene catalyst) (40/60) Tg = 95 ° C V-9: Norbornene / ethylene ring-opening copolymer (80/20) Tg = 160 ° C V-10: Norbornene / Ethylene ring-opened copolymer (60/40) Tg = 145 ° C V-11: norbornene / ethylene ring-opened copolymer (50/50) Tg = 120 ° C V-12: norbornene / ethylene ring-opened copolymer ( 40/60) Tg = 92 ° C

In the thermoplastic support of the present invention, the intrinsic viscosity of the polymer as a raw material is preferably from 0.25 to 0.48, more preferably from 0.30 to 0.46, further preferably from 0.35 to 0. .45 or less. The molecular weight distribution (Mw / Mn) is preferably 2.0 or more and 2.6 or less,
It is more preferably 2.1 or more and 2.5 or less, further preferably 2.1 or more and 2.4 or less. In addition, the intrinsic viscosity and the molecular weight distribution of the present invention are values measured after forming the support. The glass transition temperature (T) of the thermoplastic support of the present invention
g) is preferably from 90 ° C to 170 ° C, more preferably from 95 ° C to 150 ° C, even more preferably from 105 ° C to 150 ° C.
It is not less than 140 ° C and not less than 140 ° C.

The thermoplastic resin used as a raw material of the support of the present invention can be obtained as follows. In the case of a polyester-based support, the raw material dicarboxylic acid diester (usually a dimethyl ester) and a diol are heated to 150 ° C. to 250 ° C. at atmospheric pressure in the presence of a transesterification catalyst to distill off by-product methanol. The reaction was carried out for 0.5 to 5 hours while the temperature was lower than 250 ° C.
The degree of vacuum is gradually increased to 10 ² Pa and the polycondensation reaction is carried out while stirring. The intrinsic viscosity can be adjusted by changing the polycondensation time. Preferred polymerization time is 0.3 to 3 hours,
The time is more preferably from 0.4 to 2.5 hours, further preferably from 0.5 to 2 hours. Furthermore, as the degree of polymerization of the polymer during the polycondensation increases and the viscosity increases, the amount of current of the torque motor for stirring increases, so that the viscosity can be measured from a previously prepared calibration curve. In the case of polymerizing a polyester having a small intrinsic viscosity as in the present invention, the molecular weight distribution tends to be large. However, in the present invention, this was achieved by combining the following methods. <1> The degree of vacuum during polymerization is 1.333 × 10 Pa or less, more preferably 10.66 Pa or less, and even more preferably 7.99.
9Pa or less. <2> Ratio of diameter (d) of stirring blade to inner diameter (D) of polymerization vessel
(d / D) is 0.7 or more and 0.97 or less, more preferably 0.75 or more and 0.94 or less, and still more preferably 0.80 or less.
Not less than 0.90 and not more than 50 rpm and 300
rpm or less, more preferably 70 rpm or more and 250 rpm
m or less, more preferably 100 rpm or more and 200 or more.
It is to stir below rpm. By these methods, the oligomer component can be removed out of the system, and the molecular weight distribution can be narrowed. Methods for synthesizing these polyesters are described, for example, in Polymer Science Laboratory, Vol. 5, “Polycondensation and Polyaddition” (Kyoritsu Shuppan, 1980), pp. 103-136.
Page, "Synthetic Polymer V" (Asakura Shoten, 1971) No. 18
Description on pages 7 to 286, JP-A-5-163337, JP-A-3-17952, JP-A-2-3420, JP-A-1-27562
8 etc. can be referred to.

Further, the polyester support of the present invention has a diethylene glycol content of preferably from 0% to 5%, more preferably from 0.5% to 4%, further preferably from 1% to 3%. In the case of a vinyl polymer, a polymer containing an alicyclic group in the main chain is disclosed in
12621, JP-A-6-248129, JP-A-6-27
1724, JP-A-6-298956, and JP-A-7-5375 as a syndiotactic polystyrene-based polymer.
4, JP-A-7-33887, JP-A-7-188325,
The film can be formed by the method described in JP-A-5-295029, JP-A-5-310834, and the like. Control of molecular weight
It is achieved by adjusting the polymerization time, and the molecular weight distribution of the present invention can be achieved by using a metallocene catalyst. Further, it is more preferable to add a dye or a filler to the thermoplastic resin of the present invention during or after the polymerization. The dye is preferably a thermally decomposable anthraquinone-based dye, for example,
Japanese Patent Application No. 6-265180 can be mentioned. The addition concentration is 400 nm to 7 μm after the film is formed to a thickness of 100 μm.
It is preferable to add such that the transmittance at 00 nm is reduced by 1% or more and 10% or less. The filler may be either organic fine particles or inorganic fine particles, but inorganic fine particles are preferable from the viewpoint of heat resistance, and examples thereof include silica, alumina, calcium carbonate, barium sulfate, titania, and mica. The particle size is preferably from 0.1 μm to 2 μm, and the shape may be any of irregular, plate, and spherical.
More than one kind of particles may be mixed and used. The addition amount is 10
ppm to 300 ppm.

The polyester thus polymerized is taken out, cooled with water, solidified into noodles, and then cut into pellets. Preferred pellet size is 1 mm or more and 10 mm in diameter
Or less, more preferably 2 mm or more and 9 mm or less, still more preferably 2 mm or more and 7 mm or less, and the length is 2 mm or more and 30 mm or less.
mm or less, more preferably 3 mm or more and 25 mm or less, and still more preferably 3 mm or more and 20 mm or less. Thereby, dehydration can be sufficiently performed in the pellet drying step described later, and an increase in molecular weight distribution due to decomposition during melting can be prevented.

Next, a method for forming a film of these thermoplastic supports will be described. In the present invention, the physical properties of the present invention are achieved not only by the polymer raw material but also by devising a film forming method. (1) Melting / Extrusion In the present invention, the molecular weight distribution that increases during the melt extrusion process is suppressed by the following method. The polymer pellets polymerized by the above-mentioned method are heated at 140 ° C. or more and 200 ° C. or less, more preferably
50 ° C. to 190 ° C., more preferably 155 ° C. to 180 ° C., and 1 hour to 20 hours, more preferably 2 hours to 18 hours, more preferably 3 hours to 15 hours, 1.333 Pa to 1 .333 × 10 ³ P
a or less, more preferably 6.666 Pa or more and 9.332 × 1
0 ² or less, more preferably 9.332 Pa or more and 6.666
Dry at × 10 ² Pa or less. At this time, it is preferable to dry the pellets while stirring them. Thereafter, the polymer is melted using a single-screw or multi-screw kneading extruder. In the present invention, it is preferable to use two or more of these in a tandem combination, and more preferably two uniaxial stretching machines. In tandem. In the present invention, the inlet temperature T1i, the outlet temperature T1o of the upstream extruder arranged in tandem,
Inlet temperature T2i, outlet temperature T2o of the downstream extruder
Is preferably extruded so as to satisfy the following expressions (1) to (5). 250 ° C <T1i <300 ° C (1) Formula 260 ° C <T1o <310 ° C (2) Formula 270 ° C <T2i <320 ° C (3) Formula 265 ° C <T2o <315 ° C (4) Formula T1i <T1o <T2o < T2i (5)

More preferably, it is extruded so as to satisfy the following equations (6) to (10). 255 ° C <T1i <295 ° C (6) Formula 265 ° C <T1o <305 ° C (7) Formula 275 ° C <T2i <315 ° C (8) Formula 270 ° C <T2o <310 ° C (9) Formula T1i <T1o + 3 ° C <T2o + 3 ° C <T2i + 3 ° C (10) Formula The residence time of the entire extruder is preferably 1 minute or more and 8 minutes or less, more preferably 2 minutes or more and 7 minutes or less, and even more preferably 2 minutes or more and 6 minutes or less. . Thereafter, the molten polymer is preferably filtered using a filter. Examples of the filter include wire mesh, sintered wire mesh, sintered metal, sand, glass fiber, and the like. This is melt-extruded from a T-die to form an unstretched film. The molten polymer extruded from the T-die is 25
Extrude onto a casting drum temperature-controlled to 100C. At this time, the flatness may be improved by improving the adhesion to the drum by an electrostatic application method or a liquid film formation method (a fluid such as water is applied on a casting drum to improve the adhesion between the melt and the drum). preferable. This is peeled off to form an unstretched sheet.

(2) MD Stretching The unstretched sheet is stretched in the machine direction (MD), but is preferably performed in two stages. A preferable total stretching ratio (first stage stretching ratio × second stage stretching ratio) is 2.0 times or more and 4.5 times or more.
Times or less, more preferably 2.2 times or more and 4.2 times or less, still more preferably 2.5 times or more and 3.8 times or less. At this time, the ratio of the first-stage stretching ratio / the second-stage stretching ratio was 1 or more and 3 or more.
Below, more preferably 1.2 or more and 2.5 or less, still more preferably 1.2 or more and 2.2 or less. Stretching temperature is 90
C. to 170.degree. C., more preferably 105.degree.
C. to 150.degree. C., more preferably 120.degree. C. to 14
0 ° C. or less. The preferred MD stretching speed is 10% / sec or more and 300% / sec or less, more preferably 30% / sec or more and 2% or more.
50% / sec, more preferably 50% / sec or more and 200%
/ Sec or less. MD stretching can be performed by transporting between a pair of rolls having different peripheral speeds. The stretching speed and the stretching ratio can be changed by adjusting the number of rotations of the roll.
The stretching temperature can be changed by adjusting the heat appearance of a heat drum, a radiant heater (a heat source such as an infrared lamp, a halogen lamp, etc.). It is more preferable that the heat manifests on both sides. A more preferred combination is a heat roll and an IR (infrared) heater.

(3) Heat treatment before TD stretching Prior to TD stretching, it is preferable to hold both ends and perform heat treatment. Preferred temperature is Tg-40 ° C or higher and Tg + 50 ° C
Or less, more preferably Tg-30 ° C or more and Tg + 40 ° C or less, still more preferably Tg-20 ° C or more and Tg + 30 ° C or less, 10 seconds or more and 90 seconds or less, more preferably 15 seconds or more and 80 seconds or less, and still more preferably 20 seconds or more. Heat treatment for 70 seconds or less. This heat treatment before TD stretching is preferable in order to keep the delamination whitening ratio within the range of the present invention. (4) TD stretching TD stretching is preferably performed in one step, and a preferred stretching ratio is 2.0 times or more and 4.5 times or less, more preferably 2.2 times.
The time is from 4.2 times to 4.2 times, and more preferably from 2.5 times to 3.8 times. The MD stretching / TD stretching ratio (MD total stretching ratio / TD total stretching ratio) is preferably from 0.7 to 1.5, more preferably from 0.8 to 1.4, and even more preferably from 0.9 to 1. 2 or less. The TD stretching temperature is preferably from 100 ° C to 160 ° C, more preferably from 110 ° C to 150 ° C, and still more preferably from 120 ° C to 150 ° C.
It is not less than 140 ° C and not less than 140 ° C. The preferred stretching speed of the TD stretching is 10% / second or more and 300% / second or less, more preferably 30% / second or more and 250% / second or less, and further preferably 5% / second or more and 250% / second or less.
0% / sec or more and 200% / sec or less. TD stretching can be achieved by gripping both ends of the film with a chuck and increasing the width in a tenter. The stretching speed can be changed by changing the length of the stretching zone and the transport speed of the chuck.

(5) Heat treatment between TD stretching and heat setting It is preferable to perform heat treatment between TD stretching and heat setting. The temperature is preferably higher than the transverse stretching temperature (Ttd) and lower than the subsequent heat setting temperature (Ths). 90 seconds for more than 1 second
This is performed for at most 2 seconds, more preferably at least 2 seconds and at most 70 seconds, even more preferably at least 3 seconds and at most 60 seconds. This heat treatment is preferably performed with the final width of TD stretching while holding both ends with chucks in a tenter after the horizontal stretching. This heat treatment is preferable for achieving the TD breaking elongation and TD breaking strength within the range of the present invention.

(6) Heat setting Heat setting is preferably performed in one step. A preferred heat setting temperature is 180 ° C. or more and 260 ° C. or less, more preferably 19 ° C. or less.
0 ° C or more and 250 ° C or less, more preferably 200 ° C or more and 245 ° C or less, and a preferable heat setting time is 5 seconds or more and 1
It is 20 seconds or less, more preferably 10 seconds or more and 90 seconds or less, and still more preferably 15 seconds or more and 60 seconds or less. It is preferable to perform the heat setting while holding the both ends with the chucks and the final width of the TD stretching. (7) Thermal Relaxation After thermal fixing, it is preferable to relax in both the TD and MD directions by 0% or more and 10% or less. It is more preferably 1% or more and 8% or less, and further preferably 2% or more and 7% or less. These relaxations are also preferably performed in one stage. A preferable thermal relaxation temperature is a heat setting temperature (Ths) of -50 ° C or more and Ths-3 ° C.
Or less, more preferably Ths-40 ° C or more, and Ths-5 ° C
Hereinafter, more preferably, Ths-30 ° C or higher, and Ths-7.
It is below ° C. The preferred thermal relaxation time is from 5 seconds to 120 seconds, more preferably from 10 seconds to 90 seconds, even more preferably from 15 seconds to 60 seconds. The relaxation in the TD direction can be performed by reducing the distance between the tenter chucks that are gripped. Relaxation in the MD direction can be achieved by reducing the tenter chuck speed in the thermal relaxation zone.

(8) Cooling and Winding After heat relaxation, cooling is performed and the chucks at both ends are taken off and wound. The chuck width is preferably 0.1% or more and 3% or less between heat relaxation and removal of the chuck. Is preferably 0.2% or more and 2.5% or less, more preferably 0.3% or more and 2% or less. In addition, the winding tension is 1kg
/ M or more and 10 kg / m or less, more preferably 2 kg / m
It is preferably not less than 9 kg / m, more preferably not less than 3 kg / m and not more than 8 kg / m, and it is preferable to relax in the MD direction. The temperature at this time is from 50 ° C. to Tg−1 ° C., more preferably from 60 ° C. to Tg−3 ° C., and even more preferably from 70 ° C. to Tg−5 ° C. Thereafter, both ends are trimmed and wound up on a roll. At this time, it is also preferable to apply a processing (knurling) to the end of the support. A preferred film forming width is 0.5 m or more and 10 m or less, more preferably 0.8 m or more and 8 m or less, and still more preferably 1 m or more and 6 m or less.
m or less. Further, the thickness is preferably 90 μm or more and 150 μm or less, more preferably 100 μm or more and 140 μm or less.
m, more preferably 100 μm or more and 130 μm or less.

The TD and M of the support thus formed were
The thickness unevenness of D is 0 μm or more and 10 μm or less, more preferably 2 μm or more and 8 μm or less, and still more preferably 3 μm or more and 7 μm or less. The thickness is preferably 70 μm or more and 200 μm or less, more preferably 80 μm
≧ 150 μm, more preferably ≧ 90 μm1
It is 30 μm or less. The support of the present invention has a total light transmittance of 7
0% or more and 98% or less are preferable, and more preferably 80%
Not less than 96%, more preferably not less than 86% and not more than 95%. In the support of the present invention, the dimensional change rate at 150 ° C. for 30 minutes is preferably 0% or more and 0.3% or less, and more preferably, in order to maintain the flatness during drying in the undercoating and back layer coating in the subsequent step. 0% or more and 0.25% or less, more preferably 0% or more and 0.2% or less. Further, the support of the present invention is preferably used at a temperature of 85 ° C. or more and Tg or less, more preferably 90 ° C. or less.
The heat treatment (hereinafter sometimes abbreviated as BTA treatment) is preferably carried out at a temperature of not lower than Tg and not lower than Tg, more preferably not lower than Tg. The preferred heat treatment time is 0.5 hours to 90 hours, more preferably 1 hour to 70 hours, even more preferably 2 hours to 50 hours. Such BTA treatment may be performed at a constant temperature (constant-temperature BTA method), or may be heat-treated while slowly cooling from a temperature of Tg or more (slow-cooled BTA method). The latter has an average cooling rate of -0.001 ° C / min to -100 ° C / min, more preferably -0.001 ° C / min to -10 ° C / min, and still more preferably -0.001 ° C / min to -1. ° C / min. It is also preferable to combine these methods. As a result,
An endothermic peak having a maximum value between 100 ° C. and 170 ° C. can be achieved. A preferable caloric value of the endothermic peak is 0.3 J /
g or more and 4 J / g or less, more preferably 0.4 J / g.
g to 3 J / g, more preferably 0.5 J / g to 2 J / g.

Such a heat treatment is preferably carried out on the support after film formation, preferably after the following surface treatment, and more preferably after the conductive layer, undercoat and back layer are provided. By this heat treatment, it is possible to further suppress the burrs generated at the time of perforation. The photosensitive layer and the back layer are coated on the polyester support prepared in this manner, and it is preferable to perform a surface treatment before that to ensure the adhesion. Surface treatments include chemical treatment, mechanical treatment, corona treatment, flame treatment, ultraviolet treatment, high frequency treatment, glow treatment, active plasma treatment, laser treatment, mixed acid treatment, ozone oxidation treatment, etc. Among these, corona treatment, ultraviolet light Treatment, glow treatment and flame treatment are particularly effective, and corona treatment and glow treatment are more effective. These can be carried out in accordance with the method described in "Invention Association Disclosure Technique, Official Technique No. 94-6023".

The support of the present invention is preferably provided with an antistatic layer. Such an antistatic agent is not particularly limited, and may be a conductive antistatic agent or a compound having a function of adjusting a charging line. As the conductive antistatic agent,
Examples include metal oxides and ionic compounds,
The conductive antistatic agent preferably used in the present invention includes a conductive metal oxide and a derivative thereof, a conductive metal, a carbon fiber, a π-conjugated polymer (polyarylenevinylene) which does not deactivate the antistatic property even after the development processing. And the like, among which the conductive material that is particularly preferably used is a crystalline metal oxide particle. The most preferred conductive metal oxide particles are ZnO, TiO ₂ , SnO ₂ , Al ₂ O ₃ , I ₂
n ₂ O ₃ , SiO ₂ , MgO, BaO, MoO ₃ , V ₂
Fine particles of at least one crystalline metal oxide selected from O ₅ or a composite oxide thereof. Among them, a particularly preferable one is a conductive material containing SnO ₂ as a main component and containing about 5 to 20% of antimony oxide and / or further containing other components (for example, silicon oxide, boron and phosphorus). Fine particles of these conductive crystalline oxides or composite oxides have a volume resistivity of 10 ⁷ Ωcm.
Hereafter, it is more preferably 10 ⁶ Ωcm or less, further preferably 10 ⁵ Ωcm or less. For details of these conductive materials and the coating method, refer to “Invention Association Open Techniques
-6023 "and can be carried out in accordance with the description. Such application of the conductive layer is preferably performed after the surface treatment from the viewpoint of improving adhesion.

Next, an undercoat layer provided between the surface-treated support and the photosensitive layer will be described. As the undercoat layer, the first
A layer that adheres well to the support (hereinafter abbreviated as first undercoat layer) is provided as a layer, and a layer that adheres the first undercoat layer and the photographic layer as a second layer (hereinafter abbreviated as second undercoat layer) is provided thereon. )
And a single-layer method in which only a single layer of a support and a photographic layer is adhered to each other. In the undercoating first layer in the multilayer method, for example, a single layer selected from vinyl chloride, vinylidene chloride, butadiene, vinyl acetate, styrene, acrylonitrile, methacrylic acid ester, methacrylic acid, acrylic acid, itaconic acid, maleic anhydride, and the like. Copolymer starting from a monomer, epoxy resin,
Gelatin, nitrocellulose, polyvinyl acetate and the like are used. In the second layer of the undercoat, gelatin is mainly used. In the single-layer method, many swell the support,
A method for obtaining good adhesiveness by interfacial mixing with an undercoat polymer is often used. Examples of the undercoat polymer include gelatin, gelatin derivatives, casein, agar,
Sodium alginate, starch, polyvinyl alcohol,
Water-soluble polymers such as polyacrylic acid copolymers and maleic anhydride copolymers, cellulose esters such as carboxymethylcellulose and hydroxyethylcellulose, vinyl chloride-containing copolymers, vinylidene chloride-containing copolymers, and acrylate-containing copolymers Latex polymers such as vinyl acetate-containing copolymers and vinyl acetate-containing copolymers,
Are used. Preferred among these is gelatin. As the gelatin, any of those generally used in the art such as lime-processed gelatin, acid-processed gelatin, enzyme-processed gelatin, gelatin derivatives and modified gelatin can be used. Among these gelatins, lime-treated gelatin and acid-treated gelatin are most preferably used.

The undercoat polymer described above can be cured. Examples of the hardener include chromium salts (chromium alum, etc.), aldehydes (formaldehyde, glutaraldehyde, etc.), epoxy compounds, isocyanates, active halogen compounds (2,4-dichloro-6-hydroxy-s-). Triazine, etc.), epichlorohydrin resin, polyamide-epichlorohydrin resin, cyanuric chloride compound), vinyl sulfone or sulfonyl compound, carbamoyl ammonium salt compound,
Amidinium salt compounds, carbodiimide compounds, pyridinium salt compounds and the like can be mentioned.

The undercoat layer of the present invention may contain various additives as necessary. For example, surfactants,
Antistatic agent, antihalation agent coloring dye, pigment,
Coating aids, antifoggants and the like. The undercoat layer of the present 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. As organic fine particle matting agents, polymethyl methacrylate, cellulose acetate propionate, polystyrene, those soluble in the processing solution described in U.S. Pat. No. 4,142,894, U.S. Pat. 396, 7
Polymers described in No. 06 can be used. The average particle size of these fine particle matting agents is 0.01 to
Those having a thickness of 10 μm are preferred. More preferably, 0.05
５5 μm. The content is 0.5-600m
g / m ² , more preferably 1 to 400 m
g / m ² . As the compound for swelling the support used in the present invention, resorcin, chlorresorcin, o-
Cresol, m-cresol, p-cresol, phenol, o-chlorophenol, p-chlorophenol,
Dichlorophenol, trichlorophenol, monochloroacetic acid, dichloroacetic acid, trifluoroacetic acid, chloral hydrate and the like are used. Preferred among these are resorcinol and p-chlorophenol. For details of these undercoating materials, see "Invention Association Open Techniques
No., and can be implemented in accordance with this.

These undercoat liquids can be applied by a well-known coating method such as dip coating, air knife coating, curtain coating, roller coating, wire bar coating, gravure coating, or US Pat. It can be applied by an extrusion coating method using a hopper described in Japanese Patent No. 681,294. Also, if necessary, US Pat.
No. 91, 3,508,947, 2,941,898
No. 3,526,528, Yuji Harazaki, “Coating Engineering”, p. 253 (published by Asakura Shoten in 1973)
And the like, two or more layers can be simultaneously coated. It is preferable to apply such an undercoat layer after the heat treatment of the present invention. Since these undercoat layers are layers for imparting adhesiveness, many of them have tackiness, and as a result, blocking tends to occur, which is not preferable.

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 an emulsion layer is provided on one side, it is preferable to provide a back layer on the opposite side of the present support. The back layer generally has several constituent layers in order to exhibit various functions. These include, for example, an adhesion layer, an antistatic layer, a scratch resistance imparting layer, a slipping layer, an anti-sticking layer, and a curling preventing layer. Further, US Pat. No. 3,782,947 and US Pat.
No. 9,945, a transparent magnetic recording layer 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 0.00
It is from 0.01 μm to 10 μm, and more preferably from 0.001 μm to 5 μm. The thickness of all layers is preferably 0.001 to 10 μm. The constituent layer on the back side may be made of only a material having each function, but is generally used together with a binder. This binder is a hydrophobic polymer.
And may be a hydrophilic polymer used for the undercoat layer, or may be crosslinked like a latex. One of the functions of the back layer is an antistatic layer, which can be provided by the method described above.

When a slip layer is provided, examples of the slip agent used include polyorganosiloxanes disclosed in JP-B-53-292 and US Pat. No. 4,275,146. Higher fatty acid amides as disclosed in JP-B-58-33541,
British Patent No. 927,446 or JP-A-55-446.
No. 126238 and 58-90633, higher fatty acid esters (10 to 24 carbon atoms).
Esters of fatty acids with alcohols having 10 to 24 carbon atoms) and higher fatty acid metal salts as disclosed in U.S. Pat. No. 3,933,516, and JP-A-58-50534. Esters of linear higher fatty acids and linear higher alcohols as disclosed in
Higher fatty acid-higher alcohol esters containing a branched alkyl group as disclosed in Japanese Patent No. 108115.8 are known.

Among these polyorganosiloxanes, generally known polyalkylsiloxanes such as polydimethylsiloxane and polydiethylsiloxane, polyarylsiloxanes such as polydiphenylsiloxane and polymethylphenylsiloxane, and the like, 53-
292, JP-B-55-49294, JP-A-60-140
341 and the like, an organopolysiloxane having an alkyl group of ₅ or more, an alkylpolysiloxane having a polyoxyalkylene group in a side chain, and having an alkoxy, hydroxy, hydrogen, carboxyl, amino, mercapto group in a side chain Modified polysiloxanes such as such organopolysiloxanes can also be used. Further, a block copolymer having a siloxane unit and a copolymer disclosed in
A graft copolymer having a siloxane unit in the side chain as shown in -191240 can also be used.
Higher fatty acids and derivatives thereof, higher alcohols and derivatives thereof include higher fatty acids, metal salts of higher fatty acids, higher fatty acid esters, higher fatty acid amides, higher fatty acid polyhydric alcohol esters and the like, and higher fatty alcohols.
Monoalkyl phosphite of higher aliphatic alcohol,
Dialkyl phosphites, trialkyl phosphites, monoalkyl phosphates, dialkyl phosphates, trialkyl phosphates, higher aliphatic alkylsulfonic acids, and amides Official skill number 94
-6023 "and can be carried out in accordance with the description.

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 non-polar organic solvent such as toluene or xylene or a method of dispersing in a coating solution, but a method of dispersing a non-polar organic solvent is preferable because it is difficult to handle. As a method of dispersing the slipping agent, generally known emulsification and dispersion methods can be used. Specific examples include a method of dissolving in a solvent and emulsifying in water, a method of melting a slipping agent at a high temperature and emulsifying in water, a solid dispersion method using a ball mill, a sand grinder, and the like. Such emulsifying and dispersing methods are described in books such as cut rice, pebbles, edited by Hidaka, and "Handbook for Application of Emulsifying and Dispersing Technology" (Science Forum Edition). Further, the silver halide photographic material of the present invention may have a magnetic recording layer as described in JP-A-6-059357 for recording various information. The magnetic recording layer is preferably used on the back surface of the support layer, and can be provided by coating or printing. Further, a space for optically recording in order to record various information may be provided to the photosensitive material.

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 light-sensitive material of the present invention may be provided with at least one light-sensitive layer on a support. Typically, at least one light-sensitive layer comprising a plurality of silver halide emulsion layers having substantially the same color sensitivity but different sensitivities is provided on a support.
This is a silver halide photographic light-sensitive material. The photosensitive layer is a unit photosensitive layer having color sensitivity to any of blue light, green light, and red light, and in a multilayer silver halide color photographic material, the arrangement of the unit photosensitive layers is generally A red-sensitive layer, a green-sensitive layer, and a blue-sensitive layer are provided in this order from the support side. However, depending on the purpose, the order of installation may be reversed, or the order of installation may be such that different photosensitive layers are sandwiched between layers of the same color sensitivity. A non-light-sensitive layer may be provided between the silver halide light-sensitive layers and as the uppermost layer and the lowermost layer. These may contain a coupler, a DIR compound, a color mixing inhibitor and the like described below. As described in German Patent 1,121,470 or British Patent 923,045, a plurality of silver halide emulsion layers constituting each unit photosensitive layer are composed of a high-speed emulsion layer and a low-speed emulsion layer.
It is preferred that the layers are arranged in such a way that the light sensitivity decreases sequentially towards the support. Also, Japanese Patent Application Laid-Open No. 57-112751
No. 62-200350, 62-206541,
As described in JP-A-62-206543, a low-speed emulsion layer may be provided on the side farther from the support, and a high-speed emulsion layer may be provided on the side closer to the support.

As a specific example, from the side farthest from the support,
Low-sensitivity blue-sensitive layer (BL) / High-sensitivity blue-sensitive layer (BH)
/ High sensitivity green photosensitive layer (GH) / Low sensitivity green photosensitive layer (G
L) / high-sensitivity red-sensitive layer (RH) / low-sensitivity red-sensitive layer (RL), or BH / BL / GL / GH / RH /
RL order or BH / BL / GH / GL / RL / RH
And so on. 55-3
As described in Japanese Patent No. 4932, the blue-sensitive layer / GH / RH / GL / RL may be arranged in this order from the farthest side from the support. Also, JP-A-56-2573
8. As described in JP-A-62-63936, the blue-sensitive layer / GL / RL / GH /
They can be arranged in the order of RH. In addition, Tokubo Sho 49-1
5495, the upper layer is a silver halide emulsion layer having the highest sensitivity, the middle layer is a silver halide emulsion layer having a lower sensitivity, and the lower layer is a silver halide emulsion having a lower sensitivity than the middle layer. An example is an arrangement of three layers in which the layers are arranged and the sensitivities are sequentially reduced toward the support. Even when such three layers having different sensitivities are used, as described in JP-A-59-202264, a medium-sensitivity emulsion layer / high The layers may be arranged in the order of a light-sensitive emulsion layer / a light-sensitive emulsion layer. Other high-sensitivity emulsion layers /
Low-speed emulsion layer / medium-speed emulsion layer or low-speed emulsion layer /
They may be arranged in the order of a medium-speed emulsion layer / a high-speed emulsion layer. The arrangement may be changed as described above even in the case of four or more layers. In order to improve color reproducibility, US Pat.
3,271, 4,705,744, 4,707,4
36, JP-A-62-160448 and JP-A-63-89850
It is preferable to dispose a donor layer (CL) having a multilayer effect having a spectral sensitivity distribution different from that of the main photosensitive layers such as BL, GL, and RL described in the specification of the Japanese Patent Application Laid-Open (JP-A) no.

The preferred silver halide for use in the present invention is silver iodobromide, silver iodochloride, or silver iodochlorobromide containing up to about 30 mole percent silver iodide. Particularly preferred is silver iodobromide or silver iodochlorobromide containing from about 2 mol% to about 10 mol% of silver iodide. Silver halide grains in photographic emulsions include those having regular crystals such as cubic, octahedral and tetradecahedral, those having irregular crystal forms such as spheres and plates, twin planes, etc. Or a composite form thereof. The silver halide may be fine grains having a grain size of about 0.2 μm or less or large grains having a projected area diameter of about 10 μm, and may be a polydisperse emulsion or a monodisperse emulsion. The silver halide photographic emulsion usable in the present invention is, for example, Research Disclosure (hereinafter abbreviated as RD) No. 17643 (19).
1978), pp. 22-23, "I. Emulsion Production (Em
ulsion preparation andtype
es) ", and No. 18716 (November 1979)
No. 307105 (November 1989), pp. 863-865, and Grafkid, "Physics and Chemistry of Photography", published by Paul Montell (P. Glaf).
kids, Chemie et Physique
Photographique, Paul Mon
tel., 1967), Duffin's "Emulsion Chemistry",
Focal Press (GF Duffin, P
photographic Emulsion Chemi
story, Focal Press, 1966),
"Manufacture and Coating of Photographic Emulsions", by Zerikman et al., Published by Focal Press (VL Zelikman, et a.)
l. , Making and Coating Ph
autographic Emulsion, Foca
1 Press, 1964). US 3,574,62
8, ibid. 3,655,394 and GB 1,413,
The monodisperse emulsion described in 748 is also preferred. Tabular grains having an aspect ratio of about 3 or more can also be used in the present invention. Tabular grains are described in Photographic Science and Engineering by Gatov (Gut).
off, Photographic Science
and Engineering), Vol. 14, No. 24
8 to 257 (1970); U.S. Pat.
226, 4,414,310, 4,433,04
8, 4,439,520 and British Patent 2,112,
157 can be easily prepared.

The crystal structure may be uniform, the inside and the outside may be composed of different halogen compositions, or may have a layered structure. Silver halides having different compositions may be joined by epitaxial joining, or may be joined to a compound other than silver halide, such as, for example, silver rhodanate or lead oxide. Also, a mixture of particles of various crystal forms may be used. The above emulsion may be either a surface latent image type in which a latent image is mainly formed on the surface, an internal latent image type in which the latent image is formed inside the grains, or a type having a latent image on both the surface and the inside. It is necessary that Among the internal latent image types, core / shell type internal latent image type emulsions described in JP-A-63-264740 may be used, and the preparation method is described in JP-A-59-133542. Although the thickness of the shell of this emulsion varies depending on the development processing, etc.
It is preferably from 40 to 40 nm, particularly preferably from 5 to 20 nm.

As the silver halide emulsion, usually, those subjected to physical ripening, chemical ripening and spectral sensitization are used. The additive used in such a process is RD No. 1764
3, the same No. No. 18716 and the same No. 307105, and the corresponding portions are summarized in the table below.
In the light-sensitive material of the present invention, the grain size of the photosensitive silver halide emulsion, grain size distribution, halogen composition, grain shape,
Two or more emulsions having at least one characteristic different in sensitivity can be mixed and used in the same layer. U.S. Pat. No. 4,082,553, silver halide grains having a fogged surface described in US Pat. No. 4,082,553, U.S. Pat. No. 4,626,498, silver halide grains having a fogged interior described in JP-A-59-214852, colloids It is preferred to apply silver to the photosensitive silver halide emulsion layer and / or to the substantially light-insensitive hydrophilic colloid layer. The term “silver halide particles having a fogged inside or surface” refers to silver halide grains that can be uniformly (non-imagewise) developed regardless of the unexposed portions and exposed portions of the photosensitive material. Its preparation is described in U.S. Pat. No. 4,626,498 and JP-A-59-214852. The silver halide forming the internal nucleus of the core / shell type silver halide grain whose inside is fogged is
The halogen composition may be different. As the silver halide having the inside or surface of the grain fogged, any of silver chloride, silver chlorobromide, silver iodobromide and silver chloroiodobromide can be used. The average grain size of these fogged silver halide grains is 0.01 to 0.75 μm, especially 0.0 to 0.75 μm.
5 to 0.6 μm is preferred. The grains may be regular grains or polydisperse emulsions, but may be monodisperse (at least 95% of the weight or number of silver halide grains has a grain size within ± 40% of the average grain size). Is preferable.

In the present invention, it is preferable to use non-photosensitive fine grain silver halide. Non-photosensitive fine grain silver halide is silver halide fine grains that are not exposed during imagewise exposure to obtain a dye image and are not substantially developed in the developing process, and are preferably not fogged in advance. . The fine grain silver halide has a silver bromide content of 0 to 100 mol%, and may contain silver chloride and / or silver iodide as needed. Preferably, it contains 0.5 to 10 mol% of silver iodide. The fine grain silver halide preferably has an average particle size (average value of equivalent circle diameter of projected area) of 0.01 to 0.5 μm,
0.2 μm is more preferred. Fine grain silver halide can be prepared by the same method as that for ordinary photosensitive silver halide. The surface of the silver halide grains does not need to be optically sensitized, and no spectral sensitization is required. However, prior to adding this to the coating solution, it is preferable to add a known stabilizer such as a triazole-based, azaindene-based, benzothiazolium-based, or mercapto-based compound or a zinc compound in advance. Colloidal silver can be contained in the layer containing fine silver halide grains. Coated silver amount of the light-sensitive material of the present invention is preferably 6.0 g / m ² or less, 4.5 g / m ² or less is most preferred.

The photographic additives which can be used in the present invention are also described in RD, and the relevant portions are shown in the following table. Type of additive RD17643 RD18716 RD307105 1. Chemical sensitizer page 23 page 648 right column page 866 2. Sensitivity increasing agent, page 648, right column Spectral sensitizers 23 to 24, page 648, right column 866 to 868 Super sensitizers, page 649, right column 4. Brighteners, page 24, page 647, right column 868 5. Light absorbers 25 to 26, page 649 Right column, page 873 Filter-page 650, left column Dye, ultraviolet ray absorber 6. Binder, page 26, page 651, left column, 873-874 7. Plasticizer, page 27, 650, right column, page 876 Lubricant 8. Coating aid, 26-27 page 650 right column 875-876 Surface active agent 9. Static 27 page 650 right column 876-877 Inhibitor 10. Matsut agent 878-879

Although various dye-forming couplers can be used in the light-sensitive material of the present invention, the following couplers are particularly preferred. Yellow coupler: a coupler represented by the formula (I) or (II) of EP 502,424A; EP 51
3,496A couplers represented by formulas (1) and (2) (especially Y-28 on page 18); EP 568,037
A coupler represented by the formula (I) in claim 1 of A; a coupler represented by the general formula (I) in column 1, lines 45 to 55 of U.S. Pat. No. 5,066,576;
25 couplers of the general formula (I) in paragraph 0008; claim 1 on page 40 of EP 498,381 A1.
(Especially D-35 on page 18); couplers represented by formula (Y) on page 4 of EP 447,969 A1 (especially Y-1 (page 17), Y-54 (41)
P.)); U.S. Pat. No. 4,476,219, column 7, 36.
To the couplers represented by the formulas (II) to (IV) (especially II-17, 19 (column 17), II-24)
(Column 19)). Magenta coupler: Japanese Patent Application Laid-Open No. 3-37737 (L-57)
(Page 11, lower right), L-68 (Page 12, lower right), L-77
(Page 13, lower right); EP-A 456,257 [A-
4] -63 (p. 134), [A-4] -73, -75
(P. 139); M-4,-of European Patent 486,965.
6 (p. 26), M-7 (p. 27);
M-45 of 959A (p. 19);
06 (M-1) (p. 6);
M-22 of paragraph 0237. Cyan coupler: CX- described in JP-A-4-208443
1,3,4,5,11,12,14,15 (14-16
P.); C-7,10 (35 in JP-A-4-43345);
P.), 34, 35 (p. 37), (I-1), (I-1)
7) (pages 42 to 43); a coupler represented by formula (Ia) or (Ib) according to claim 1 of JP-A-6-67385. Polymer coupler: P-1 of JP-A-2-44345,
P-5 (page 11).

US Pat. No. 4,366,237 and British Patent 2,1 are examples of couplers in which a color forming dye has an appropriate diffusibility.
25,570, European Patent 96,873B, German Patent 3,
Preferred are those described in 234,533. A coupler for correcting unnecessary absorption of a coloring dye is disclosed in European Patent 456,
Formulas (CI), (CII) described on page 5 of 257A1;
Yellow colored cyan couplers represented by (CIII) and (CIV) (especially YC-86 on page 84), and yellow colored magenta coupler ExM described in the European Patent
-7 (page 202), EX-1 (page 249), EX-7
(Page 251), a magenta colored cyan coupler CC-9 (column 8) described in U.S. Pat. No. 4,833,069,
CC-13 (column 10), U.S. Pat. No. 4,837,13
6 (2) (column 8), a colorless masking coupler represented by the formula (A) in claim 1 of WO 92/11575 (especially the exemplified compounds on pages 36 to 45) are preferred.
Examples of the compound (including a coupler) which releases a photographically useful compound residue by reacting with an oxidized developing agent include the following. Development inhibitor releasing compound: European Patent 37
Formulas (I), (II), and
Compounds represented by (III) and (IV) (particularly T-
101 (page 30), T-104 (page 31), T-113
(Page 36), T-131 (page 45), T-144 (51
P.), T-158 (p. 58)), European Patent 436, 9
Compounds of formula (I) described on page 7 of 38A2 (especially D-49 (page 51)), EP 568,03.
7A represented by the formula (1) (especially (23) (1
1)), compounds of formulas (I), (II) and (III) described on pages 5 to 6 of EP 440,195 A2 (especially I- (1) on page 29); bleach accelerator release Compound: Formula (I) on page 5 of EP 310,125 A2,
Compounds represented by (I ′) (particularly (60) on page 61,
(61)) and the compound represented by formula (I) of claim 1 of JP-A-6-59411 (especially (7) (p. 7); Ligand releasing compound: described in claim 1 of US Pat. No. 4,555,478. A compound represented by LIG-X (particularly, a compound on lines 21 to 41 of column 12); a leuco dye-releasing compound: columns 3 to 4 of U.S. Pat. No. 4,749,641.
Compounds 1 to 6 of No. 8; fluorescent dye-releasing compounds: U.S. Pat.
774, 181. The compound represented by COUP-DYE of claim 1 (especially, compounds 1 to 1 of columns 7 to 10)
1); a development accelerator or fogging agent releasing compound: Formula (1), (2) of column 3 of US Pat. No. 4,656,123;
The compound represented by (3) (particularly, (I-2) in column 25
2)) and page 75, 36 of EP 450,637 A2
ExZK-2 on lines 38 to 38; Compound that releases a group that becomes a dye only after leaving: US Pat. No. 4,857,447
(In particular, Y-1 to Y-19 in columns 25 to 36).

As the additives other than the coupler, the following are preferable. Dispersion medium for oil-soluble organic compound: JP-A-62-21527
P-3 of 2, 5, 16, 19, 25, 30, 42, 4
9, 54, 55, 66, 81, 85, 86, 93 (14
Latex for impregnating an oil-soluble organic compound: a latex described in U.S. Pat. No. 4,199,363;
Oxidized developer scavenger: US Patent 4,97
8,606, column 54, lines 54-62, compounds of formula (I) (especially I-, (1), (2), (6),
(12) (columns 4-5), U.S. Pat. No. 4,923,78
7 column 2 lines 5-10 (especially compound 1 (column 3); anti-stain agent: EP 298321A 4
Formulas (I)-(III) on page 30-33, especially I-4
7, 72, III-1, 27 (pages 24 to 48); Anti-fading agent: A-6, 7, 2 of US Pat.
0, 21, 23, 24, 25, 26, 30, 37, 4
0, 42, 48, 63, 90, 92, 94, 164 (6
9-118), U.S. Pat. No. 5,122,444, columns 25-38, II-1 to III-23, especially III.
-10, I- on pages 8 to 12 of EP 471347A.
1 to III-4, especially II-2, US Pat.
9,931 columns 32-40 A-1 to 48, especially A
Materials for reducing the amount of the coloring enhancer or the color mixing inhibitor used:
I-1 to II-15, especially I-46, page 24; Formalin scavenger: U.S. Pat.
SCV-1 to 28, especially SCV-8 on pages 29 to 29; Hardener: H-1,4 on page 17 of JP-A-1-214845.
6,8,14, column 1 of US Pat. No. 4,618,573.
Compounds (H-1 to 54) represented by Formulas (VII) to (XII) of 3 to 23, Compounds (H-1 to 76) represented by Formula (6) on the lower right of page 8 of JP-A-2-214852 , Especially H-14, Claim 1 of U.S. Patent 3,325,287.
A development inhibitor precursor: P-24, 37, 39 (6 to 7) described in JP-A-62-168139.
Compounds according to claim 1 of US Pat. No. 5,019,492, especially 28, 29 of column 7;
Antifungal agent: Columns 3-1 of U.S. Pat. No. 4,923,790
5 of I-1 to III-43, especially II-1, 9, 1
0,18, III-25; Stabilizer, antifoggant:
U.S. Pat. No. 4,923,793, columns 6-16, I-
1 to (14), especially I-1, 60, (2), (1
3), U.S. Pat.
32 compounds 1 to 65, especially 36: Chemical sensitizer:
Triphenylphosphine selenide, JP-A-5-4
Compound No. 0324; Dye: JP-A-3-156
450 pages 15-18, a-1 to b-20, especially a-
1,12,18,27,35,36, b-5,27 ~
V-1 to 23 on page 29, especially V-1, EP 445
FI-I to F-II-4 on pages 33 to 55 of 627A
3, especially FI-11, F-II-8, European Patent 45
7153A, pages 17 to 28, III-1 to 36, especially III-1,3, WO 88/04794, 8 to
26 microcrystalline dispersion of Dye-1 to 124, EP 3
Compounds 1 to 22 on page 6 to 11 of 199999A, especially compound 1, compounds D-1 to 87 (3 to 28) represented by formulas (1) to (3) in European Patent 519306A.
P.), Compounds 1-22 represented by formula (I) of U.S. Pat. No. 4,268,622 (columns 3 to 10), and compounds (1) to (1) represented by formula (I) of U.S. Pat. No. 4,923,788. 31) (Columns 2 to 9); UV absorber: JP-A-46-33
35 compounds (18b) represented by the formula (1):
(18r), 101 to 427 (pages 6 to 9), compounds (3) to (5) represented by the formula (I) in EP520938A.
(66) (pages 10 to 44) and the compound HBT-1 to 10 (page 14) represented by the formula (III), EP 521
Compounds (1) to (3) represented by Formula (1) of 823A
1) (columns 2-9).

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, more preferably 23 μm or less, and 18 μm or less.
μm or less is more preferable, and 16 μm or less is particularly preferable. Further, the film swelling speed T1 / 2 is preferably 30 seconds or less,
20 seconds or less are more preferable. T1 / 2 is the time required for the film thickness to reach 1/2 when the saturated film thickness is 90% of the maximum swollen film thickness reached when the color developing solution is processed at 30 ° C. for 3 minutes and 15 seconds. Define. The film thickness means a film thickness measured at 25 ° C. and a relative humidity of 55% (2 days).
2, Photographic Science and Engineering (A. Green) et al., Photogr. Sci. Eng.
It can be measured by using a serometer (swelling meter) of the type described on pages 124-129. T1 / 2 can be adjusted by adding a hardening agent to gelatin as a binder or by changing the aging conditions after coating. The swelling ratio is preferably from 150 to 400%. The swelling ratio can be calculated from the maximum swelling film thickness under the conditions described above by the formula: (maximum swelling film thickness-film thickness) / film thickness. Further, on the support of the present invention, JP-A-9-14623
No. 7, Japanese Patent Application Laid-Open No. 11-84601;
It is also preferable to apply the color reversal sensitive material described in No. 01.

Finally, the evaluation and measurement methods employed in the present invention will be described. (1) Elongation at break / strength at break 10 mm width x 120 mm using a double-edged razor
Cut out to length. Cellophane tape is stuck on both sides of the sample by 50 mm at both ends, and this is sandwiched between chucks. In this way, the distance between the chucks is set to 20 mm and the stretching speed is set to 2 mm / min.
Pull at 5 ° C., 60% RH. The elongation and strength at break of the sample (normalized by dividing the stress at break by the sample cross-sectional area before the tensile test) were obtained. In the examples of the present invention, a Strograph R2 type tensile tester manufactured by Toyo Seiki Co., Ltd. was used. (2) Crack tear strength / Crack tear strength change rate A sample with a sample length of 200 mm in the measurement direction, a sample width of 10 mm in the perpendicular direction, a sample with a 1 mm cut in the width direction at the center, and a sample with a 1.2 mm cut in the center. Then, a sample is made by cutting (cracking) with a razor up to 6 mm in increments of 0.2 mm. Each sample is gripped so that the distance between the chucks is 100 mm.
The sample is pulled at 10 mm / s under 0% RH, and the load is measured while tearing the sample starting from the crack to determine the maximum load. When the length of the first crack is X mm, the width L without a crack (sample width (10 mm) −X (m
m)), the maximum load F (L) of this sample is plotted as L on the horizontal axis and F (X) on the vertical axis. A straight line connecting the plots is determined by the least squares method, the maximum load when extrapolated to L = 10 mm is defined as the crack tear strength (kg), and the slope of the straight line is defined as the crack tear strength change rate (kg / mm). (3) Delamination whitening ratio A sample is cut into a 50 mm square, bent 180 degrees in the MD and TD directions, and rubbed 5 times while applying a load of 1 kg to a roll having a diameter of 10 mm. This was spread again on a plane, and the length at which whitening caused by delamination (cleavage) was recognized was measured on black paper (this is Amm).
0 × A / 50 (%) is defined as the delamination whitening ratio (%) of MD and TD, respectively. (4) Glass transition temperature (Tg), 100 ° C. or more and 170 ° C.
Calorie of endothermic peak appearing below

According to the following method, measurement is made using a differential thermal analyzer. <1> A 20 mg sample was set in an aluminum pan in a nitrogen stream. <2> Heat up to 330 ° C. at 10 ° C./min (1st ru
n). From this thermogram, the amount of endotherm was determined from the straight line connecting the base line at 80 ° C. to 100 ° C. and the base line at 170 ° C. to 190 ° C., and the area where the endothermic peak appears at 100 ° C. or more and 170 ° C. or less. It is the calorific value of an endothermic peak appearing at a temperature of from 170 ° C to 170 ° C. <3> After the first run, the mixture is rapidly cooled using liquid nitrogen to be amorphous. The temperature was raised again at 20 ° C./min (2nd
Run), and Tg is determined from the thermogram (the arithmetic average of the temperature at which the base line begins to skew and the temperature at which the base line returns to the new baseline is defined as Tg).

(5) Intrinsic viscosity In the case of a polyester-based support, phenol / 1,1,1,
2,2-tetrachloroethane mixed solvent (weight ratio: 60 /
40), a polyester support is dissolved, and in the case of a vinyl support, the vinyl support is dissolved in 1,2,4-trichlorobenzene to obtain 0.2 g / dl and 0.6 g / dl, respectively.
A 1.0 g / dl solution was made. And these two
At 0 ° C., the viscosity was measured using an Ubbelohde viscometer, the viscosity was plotted against the concentration, and the viscosity when the concentration was extrapolated to 0 was defined as the intrinsic viscosity. (6) Molecular weight distribution GPC (Gel Permeation C)
Chromatography), the weight average molecular weight (Mw) and the number average molecular weight (Mn) are measured, and Mw /
The Mn ratio is defined as a molecular weight distribution. <1> Each of dichloromethane (DCM) and hexafluoroisopropanol (HFIP) is 5: 5 (volume ratio).
Dissolve the sample in the liquid mixed with. <2> A GPC column (for example, two TSK gels GMHHR-M and G) at 1 ml / min at 25 ° C. using DCM: HFIP = 7: 3 (volume ratio) as an eluent.
2,000 HHRs in series). The sample solution is injected into the solution, and the elution time is detected at 255 nm using a UV detector for a polyester-based polymer and using an RI detector for a vinyl-based polymer. <3> A standard solution prepared by dissolving monodisperse polystyrene in an eluent is similarly injected, and a calibration curve of elution time and molecular weight is prepared. <4> From this calibration curve and the elution time of the sample, Mw and M
Calculate n to determine the molecular weight distribution.

[0047]

EXAMPLES The present invention will be further described below with reference to examples, but the present invention is not limited to these examples. (1) Polymerization of thermoplastic resin (1-1) Polymerization of polyester PEN homopolymer is 100 parts of dimethyl 2,6-naphthalenedicarboxylate, ethylene glycol 58
Parts were mixed. The PEN-based copolymer was prepared such that cyclohexane dimethanol (CHDM),
Decalin dicarboxylic acid (DCA), biphenol (B
P) was mixed with 2,6-naphthalenedicarboxylic acid dimethyl ester and ethylene glycol. These are each added with 2,6-naphthalenedicarboxylic acid dimethyl ester 10
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 were added to 0 parts, and the mixture was heated to 200 ° C. with stirring. The temperature was raised to 235 ° C. while removing by-produced methanol. After the formation of methanol was completed, 0.03 part of trimethyl phosphoric acid was added, and the temperature was raised to 285 ° C., and the following conditions (ultimate vacuum = V, rotation speed of stirring blade = R, diameter of stirring blade ( ratio between d) and the inner diameter (D) of the polymerization vessel = d / D,
Polymerization was carried out under the conditions shown in Table 1 selected from the reaction time = T).

Vd / DRT (Pa) (-) (rpm) (hr) Polymerization conditions A 5.33 0.90 50 1.4 {B 8.00 0.84 220 2.0} C 14. 67 0.78 90 0.7 Ｄ D 2.67 0.97 290 2.8 Ｅ E 20.00 0.72 60 0.3 〃 F 66.66 0.50 40 3.5 Ｇ G 66.660 .50 40 6.0 @H 66.66 0.50 40 3.0 Further, for each polymer, the solid content was
The dyes described in No. 309, Compound I-6 and Compound I-24, were each added in an amount of 54 ppm. Further, 50 ppm of spherical silica having a diameter of 0.3 μm was added.

(1-2) Polymerization of vinyl polymer (a) Syndiotactic polystyrene (SPS) polymer: Example 16 Polymerization was carried out according to Example 1 of JP-A-62-104818. However, the addition amount of methylaluminoxane to styrene was reduced to 1/2, and the reaction was carried out at 10 ° C. for 2 hours. Further, each polymer is described in Japanese Unexamined Patent Publication No.
68309, dyes I-6 and I-2
No. 4 was added at 54 ppm, and 50 ppm of spherical silica having a diameter of 0.3 μm was added. (B) Alicyclic polymer: Example-17 A norbornene-based copolymer was polymerized according to the example of JP-A-5-287173. However, the polymerization was carried out at 50 ° C. for 3 hours. Further, to each polymer, 54 ppm each of the dyes described in JP-A-7-168309, Compound I-6 and Compound I-24, and 50 ppm of spherical silica having a diameter of 0.3 μm were added to each polymer. (1-3) Polymerization of Comparative Example (a) Comparative Example-1 PEN having an intrinsic viscosity of 0.58 and 0.80 was polymerized in accordance with Invention 5 of Example of JP-A-11-202446, and each of the PENs had a specific viscosity of 0.18.
They were mixed at a blend ratio of 40: 0.60. (B) Comparative Example-2 PEN was polymerized in accordance with Example-1 of the Invention Association's published technique (Publication No. 94-6023).

(2) Pelletization The thermoplastic resin thus polymerized was pelletized to the size shown in Table 1 selected from the following. Diameter (mm) Length (mm) Pellet size A48 〃 B214 〃 C720 〃 D13 〃 E1028 Ｆ F1233

[0051]

[Table 1]

(3) Film formation <1> Melting / extrusion The above pellets were dried at 170 ° C. and 1.333 × 10 ² Pa for 10 hours, and then used in two tandem single-screw extruders at the following temperature. After being kneaded and extruded in a pattern and melted, the mixture was filtered through a 5 μm mesh filter, and an extruded unstretched film was prepared on a casting drum to which a static electricity of 50 ° C. was applied from a T-die. However, the comparative example was extruded by one single screw extruder. The conditions of these extruders were selected from the following and described in Table 1. First stage melt extruder Second stage melt extruder Total residence time Inlet temperature Outlet temperature Inlet temperature Outlet temperature Melting pattern A 280 ° C 295 ° C 305 ° C 300 ° C 5 minutes ℃ B 298 ° C 308 ° C 318 ° C 313 ° C 1 minute〃C 270 ° C 285 ° C 300 ° C 290 ° C 3 minutes 〃 D 252 ° C 262 ° C 272 ° C 267 ° C 8 minutes Ｅ E 300 ° C 300 ° C -10 minutes <2> MD stretching Step stretching was performed. The stretching temperature was Tg + 20 ° C., and the stretching speed was 150% / sec. However, Comparative Examples-1 and 2 were stretched at 135 ° C. in one step under the conditions shown in Table 1. The heat sources heated from the front and back at this time are shown in Table 1. It heated with the heat source shown in Table 1 from the front and back. At this time, the drum surface refers to the surface that was in contact with the casting drum at the time of melt extrusion, and the air surface refers to the anti-casting drum surface.

<3> Heat treatment before TD stretching This was heat-treated at the temperatures shown in Table 1 for 20 seconds. <4> TD stretching Following the heat treatment before TD stretching, MD / TD shown in Table 1
The film was stretched in one step at a temperature (Ttd) and a magnification shown in Table 1 so as to obtain a stretching ratio. The stretching was performed at a stretching speed of 150% / sec by expanding the chucks holding both ends. However, Comparative Example-1 was stretched at 135 ° C. in two stages under the conditions shown in Table 1 (the first stretching stage stretched 50% of the total stretching ratio). <5> Heat treatment between TD stretching and heat fixing (heat treatment between TH) Table 1 While holding both ends with chucks following TD stretching, Table 1
Heat treatment was performed at the described temperature for 20 seconds. However, Comparative Example-1
Was carried out at the temperature shown in Table 1 for 2 seconds, and Comparative Example-2 was not carried out. <6> Heat fixation (HS) Following the heat treatment between TH, heat fixation was performed in one stage at a temperature (Ths) shown in Table 1 for 25 seconds while holding both ends with chucks. However, Comparative Example-1 was carried out in two stages under the conditions shown in Table 1 (the first stage heat setting was performed for 5 seconds, and the second stage heat setting was performed for 15 seconds). <7> Heat Relaxation After heat setting, the material was relaxed by 4% in the width direction and 3% in the vertical direction over 20 seconds while maintaining the temperature at 15 ° C. lower than the heat setting temperature.
However, Comparative Example-1 relaxed TD by 5%, and Comparative Example-2 did not relax.

<8> Cooling and Winding Between the heat relaxation and the removal of the chuck, when the base temperature reached Tg-6 ° C. for each support, the chuck width was reduced at the ratio shown in Table 1 and relaxed to TD. Further, the winding speed was slower than the tenter speed, and the alicyclic ring was formed in the MD direction (cooling relaxation). Thereafter, it was trimmed to a width of 1.5 m and wound around a roll at a tension of 9 kg / m. At this time, knurling having a width of 10 mm and a height of 40 μm was applied to both ends of the base. (3) Evaluation of Support The evaluation of the support of the present invention and the comparative examples thus obtained (intrinsic viscosity, molecular weight distribution, crack tear strength, crack tear strength change rate, breaking strength, breaking elongation, delamination whitening) rate,
The thickness was evaluated and shown in Table 2. In addition, all the supports of the present invention have a total light transmittance of 90% to 98%, a dimensional change at 150 ° C. for 30 minutes of 0.05% or more and 0.20% or less, and MD
And TD had a thickness unevenness of 1 μm to 7 μm, and a haze of 0% to 0.3%.

[0055]

[Table 2]

(4) Surface treatment, coating of undercoat and backing layer The support of the present invention and the comparative example prepared by the above-mentioned method were subjected to surface treatment and undercoat layer according to the following glow discharge treatment method or corona discharge treatment method. Coating and back layer coating were performed (shown as glow or corona in Table 4 respectively). <1> Glow discharge treatment method As described in Example 1 of JP-A-8-57951, glow surface treatment, back first layer, undercoat layer coating, back second layer coating, back third layer coating in this order. Was installed. However, drying after the application of the back first layer was performed at 160 ° C. for 3 minutes. Further, between the application of the back first layer and the application of the undercoat layer, the Tg-5 of each support was measured according to Example 1 of JP-A-8-57951.
Heat treatment in a roll at the temperature shown in Table 4 (BTA treatment)
Was done. Thereafter, the calorific value (ΔH100-170C) of the endothermic peak at 100 to 170 ° C., the breaking strength, the breaking elongation, the crack tear strength change rate, the crack tear strength, and the delaminating whitening rate were measured. Thereafter, an undercoat layer, a second back layer, and a third back layer were applied, and dried at a temperature lower by 5 ° C. than Tg of each support for 3 minutes. <2> Corona treatment method Corona treatment described in Comparative Example I of JP-A-9-106045, a first undercoat layer, a second undercoat layer, an antistatic layer (back first layer) and a surface layer ( Back second layer). First, both surfaces were subjected to corona treatment, then the first back layer was applied, and drying was performed at 185 ° C. for 3 minutes. After this,
Tg-5 ° C of each support according to Example 1 of -57951.
The heat treatment (BTA treatment) was performed in a roll form for the time shown in Table 4. However, in the comparative example, the BTA treatment was performed at 82 ° C. Thereafter, the calorific value of the endothermic peak at 100 to 170 ° C. (Δ
H100-170C), breaking strength, breaking elongation, crack tear strength change rate, crack tear strength, and delamination whitening rate were measured and described in Table 3. Thereafter, a first undercoat layer, a second undercoat layer, a second back layer, and a third back layer were applied, and dried at a temperature lower by 5 ° C. than Tg of each support for 3 minutes.

[0057]

[Table 3]

(5) Preparation and evaluation of photosensitive material As shown in Table 3, the following photosensitive materials were applied to the undercoat layer side. Color negative photosensitive material: Coated with the same sample 201 as in Example 2 of JP-A-9-146237 (indicated as CN in Table 3) Color reversal photosensitive material: Same as sample 101 of Example 1 in JP-A-11-84601 The photosensitive material and the support were slit and perforated under the following conditions in accordance with the 135 system standard, and then loaded into a 135 patrone to prepare 36 photosensitive materials. The slit and perforation were performed at 25 ° C. and 10% RH. a) Slit: upper blade = rotary blade with a diameter of 100 mm and a blade angle of 60 ° lower blade = fixed blade with a blade angle of 85 ° Upper blade = V-shaped punch with a blade angle of 60 ° (a blade used continuously for 20 hours every day for half a year) Clearance of upper / lower blade = 100 µm (reproduces the state of a blade with poor adjustment) Punching speed = 50 mm / sec (Reproduce the condition of the blade with poor adjustment) Punching Punching load per hole = 2 kg (Reproduce the condition of the blade with poor adjustment) <1> Evaluation of slit / perforated surface Burr generation rate: 50 for slit and perforated surface The occurrence rate was determined from the number of burrs confirmed by measuring with a stereoscopic microscope at × 2 magnification. 3%
The following are acceptable. Deburring number: 36 sheets of photosensitive material were rubbed on the photosensitive layer side and the back layer side while applying a weight of 3 kg on black paper. Count the photosensitive material debris that has fallen on black paper with a microscope. Five or less are within the allowable range.

<2> Evaluation of cutting performance (A) Cutting load-Cutter inserter (ENV-M4) manufactured by Noritz Corporation
The load on the handle of the cutter of the mold was applied to determine the load required for cutting the entire width of 35 mm. (B) Cutting failure ・ Minilab developing machine (FP5 manufactured by Fuji Photo Film Co., Ltd.)
(B type 50B) using a built-in cutter. -Cut using "Const (fixed length mode)". (In the normal mode, tension is applied to the light-sensitive material at the time of cutting, but in the const mode, this is not applied, making it harder to cut.) . (Simulates a blade that has been used for more than several years.) ・ The same sample was cut 100 times and evaluated as follows.
The occurrence rate of defective cutting (where some parts could not be cut) was determined. Less than 3% is acceptable. <3> Screen failure Screen failure was evaluated by the following method, and the results are shown in Table 4. Note that the allowable number is two or less. (A) Evaluation with a general camera <1> Single-lens reflex camera (EOS KI manufactured by Canon Inc.)
SS). <2> A gray background is photographed at 25 ° C. and 10% RH. <3> Develop according to a standard method, magnify 10 times, and print in six slices In the case of CN photosensitive material, the number of white spots is
Count the number of black spots in the case of photosensitive materials. 3 from the first frame
All frames were inspected up to the sixth frame, and the total of the spots was shown.

(B) Evaluation with a film-integrated camera <1>
The film-integrated camera described in -38620 was mounted with the bottom cover removed, and evaluated in the same manner as in the evaluation <2><3> with the general camera.

[0061]

[Table 4]

[0062]

According to the present invention, a thermoplastic support which is easy to cut and has a significantly reduced incidence of slit burrs and perforation burrs is obtained. Further, a silver halide photographic light-sensitive material hardly causing a screen failure (occurrence of a spot) was obtained by using the thermoplastic support.

[Brief description of the drawings]

FIG. 1 is an external view of a film-integrated camera according to the present invention.

FIG. 2 is an exploded perspective view of the film-integrated camera according to the present invention.

[Explanation of symbols]

 2 Unit body 3 Label 4 Shooting lens 5 Viewfinder 7 Strobe light emitting unit 8 Strobe operating lever 10 Shutter button 11 Counter indicating the number of frames not yet shot 12 Strobe charge indicator light 14 Winding knob 20a Cartridge room 20b Film roll room 20c Define exposure size Aperture 21 exposure unit 23 strobe device 24 front cover 25 back cover 26 photographic film 27 135 cartridge 31 capacitor 32 AA battery

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) // B29K 67:00 B29K 67:00 B29L 7:00 B29L 7:00 C08L 67:02 C08L 67:02

Claims (9)

[Claims] 1. The breaking strength in the width direction (TD) and the longitudinal direction (MD) are both 5 kg / mm ² or more and 18 kg / mm ² or less, and the breaking elongations of TD and MD are both 20% or more and 140%.
Or less, and both of the crack tear strength change rates are not more than 0.1.
A thermoplastic support having a weight of 3 kg / mm or more and 1.8 kg / mm or less. 2. The heat according to claim 1, wherein the crack tear strength of MD and TD is 4 kg or more and 12.5 kg or less, and the delamination ratio of TD and MD is 0% or more and 50% or less. Plastic support. 3. A temperature of not less than 0.3 J / 100 ° C. or more and 170 ° C. or less.
The thermoplastic support according to claim 1, having an endothermic peak of at least g and at most 4 J / g. 4. The method according to claim 1, wherein the MD / TD ratio of the breaking strength, the breaking elongation, the rate of change in crack tear strength, and the crack tear strength are all 0.84 or more and less than 1.2. The thermoplastic support according to any one of the above, which is a melt-formed film. 5. An intrinsic viscosity of not less than 0.25 and not more than 0.48,
The thermoplastic support according to any one of claims 1 to 4, wherein a molecular weight distribution (Mw / Mn) is 2.1 or more and 3.0 or less. 6. The thermoplastic support according to claim 1, which contains a monomer unit having an alicyclic structure in its main chain in an amount of from 1 mol% to 15 mol%. 7. The thermoplastic support contains from 60 mol% to 100 mol% of a polyester comprising a naphthalenedicarboxylic acid residue and an ethylene glycol residue, and has a glass transition temperature (Tg) of from 90 ° C. to 170 ° C. 7. The thermoplastic support according to claim 5, wherein 8. A roll-shaped silver halide photographic light-sensitive material comprising the polyester support according to claim 1. 9. A film-integrated camera using the roll-shaped silver halide photographic material according to claim 8.