JPS6218554A - Silver halide color reversal photosensitive material - Google Patents

Abstract

PURPOSE:To improve sharpness and to reduce fluctuation of photographic performance during storage without deteriorating sensitivity by using flat silver halide grains specified in the aspect ratio and the projection area ratio of the grains, and a specified compound. CONSTITUTION:An emulsion layer contains flat silver halide grains having a grain diameter to thickness ratio of (5-30):1, and the flat grains occupy at least 50% of the projection area of the total silver halide grains in the same layer, and it contains at least one of the compounds having repeating units each represented by formulae (I) and (II), typified by (I-1) (n is the number of S-triazine groups contained in the molecule) and (II-1). It is preferred to apply the flat silver halide grains especially in an amount of 0.3-3g/m<2>.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a silver halide color reversal light-sensitive material. This invention relates to a silver halide color reversal photosensitive material that exhibits small fluctuations in photographic properties.

(Prior Art) U.S. Pat.
Sharpness can be improved by using tabular silver halide emulsion grains having a thickness of less than 0.3 microns, a diameter of at least 0.6 microns, and a diameter/thickness ratio of ♂:/ or more in at least seven of the red-sensitive emulsion layers. A color photographic material with improved sensitivity and graininess is described.

The method of using such tabular silver halide grains in color photographic light-sensitive materials is excellent in terms of improving sharpness, sensitivity, and graininess, but the method of using tabular silver halide grains in color reversal light-sensitive materials is This was not always a satisfactory method.

Normally, the processing for color reversal photosensitive materials is black and white development (first development) → washing → reversal → color development → adjustment → bleaching → fixing → washing →
This is done through the steps of stabilization and drying. The first developer in this step contains a silver halide solvent such as KSCN in order to provide a development accelerating effect by dissolution physical development.

Therefore, in the first development process, dissolution of fc coarse particles proceeds without exposure at the same time as development of exposed silver halide grains, and dissolution physical development occurs with developed silver and colloidal silver in the yellow filter layer as cores. become.

Silver halide grains that remained undissolved in the first development are
It is covered with a reversal bath and contributes to color development.

Therefore, when silver halide grains have high solubility,
The contribution to color development becomes smaller, and in some cases, the color density decreases. Furthermore, although the size of silver halide grains usually has a certain distribution, when the silver halide grains have high solubility, relatively small-sized grains disappear due to dissolution. Therefore, in this case, only large-sized particles contribute to color development, resulting in poor graininess.

Since tabular silver halide emulsion grains have a flat shape, they have a property of having higher solubility than spherical silver halide grains. For this reason, the use of tabular silver halide grains in color reversal light-sensitive materials is extremely inconvenient in practice for the above-mentioned reasons.

The present inventors have previously invented a technique for providing a color reversal light-sensitive material with improved sharpness without deteriorating graininess by using tabular silver halide emulsion grains and a specific compound (% Gansho!?-/Ri!DaO♂).

Although sharpness has been greatly improved according to this invention, research has not been carried out sufficiently to minimize fluctuations in photographic properties (particularly, decreases in maximum density) of light-sensitive materials during storage.

Although it is impossible to completely eliminate this change wJ in photographic performance over time, it is desirable to minimize it as much as possible, and many studies have been conducted for this purpose.

As a method to prevent fluctuations in photographic performance, especially fog, that occur during storage or development over time, for example, /
-Phenyl-yo-mercaptotetrazoles (Belgian Patent No. 47/4102, U.S. Patent No. 3.2, Defbu No. 3.37B).

No. 370, same No. J, 4/! , j/No. 1, same No. 3゜07/, 4tit No. 3,4t20,6
6/issue.

Same 8g29+'θ3,927, Tokukai Sho! θ-374t
33, etc.); benzotriazoles (British Patent No. 33, etc.);
No. 06/, No. 76, No. 3, U.S. Patent No. 3.
/j7. ! No. θ, No. J, 072.

0/r, German Patent No. 317,712, etc.); benzimidazoles (U.S. Pat. No. 3./37°!7/, etc.);
Same 3rd. /417. θ6 issue, same's3゜J-//, 6
63, British Patent No. 27/, 4tZt, British Patent No. 1
, 34t4t, No. 3. /4t♂, No. 066, No. 3. ! I/, No. 663, British Patent No. 27/, e
7j issue, same a! /I-? 4t4t? German Patent No. 70♂, German Patent No. 24, German Patent No. 631,769, German Patent No. 2.20! , 639, etc.); and indazoles (U.S. Patent No. 3./θj, 4t67, U.S. Patent No. j, 4
No. 120.670, No. 1,763, ? A method is known in which a heterocyclic compound such as No. 0, No. 27/229, etc.) is added to a light-sensitive material or a processing solution.

However, these compounds have drawbacks such as not being sufficiently effective in suppressing a decrease in the maximum density of color reversal light-sensitive materials due to the occurrence of fog during storage over time, or resulting in a decrease in sensitivity.

(Object of the Invention) Therefore, the object of the present invention is to improve sharpness by using tabular silver halide emulsion grains containing a compound capable of reducing fluctuations in photographic properties during storage without causing a decrease in sensitivity. The purpose of the present invention is to provide a color reversal photosensitive material.

(Structure of the Invention) The object of the present invention is to provide a silver halide color reversal light-sensitive material having at least seven red-sensitive, green-sensitive, and blue-sensitive emulsion layers, (1) having a grain size equal to the grain thickness; an emulsion containing j times or more of tabular silver halide grains, and (2) at least 1/8 of a compound having a repeating unit of the following general formula (1) and a compound represented by the general formula (II).
At least ! of the total projected area of silver halide grains containing i and present in the same layer. This was achieved using a silver halide color reversal photosensitive material characterized by occupying the θ coefficient.

The present invention will be explained in detail below.

In the expressions, 几 and R' are each a hydrogen atom, an alkyl group having 1 to 2 carbon atoms, a hydroxyalkyl group, a sulfoalkyl group (or a salt thereof), a carboxyalkyl group (or a salt thereof): jfi, an aralkyl group, or Sulho (
or its salt)-, carboxyl (or its salt)-1
Aryl having 6 to 1 carbon atoms/λ with or without an alkoxy or halogen substituent, or 7'C represents a cycloalkyl group. , or i and ' may both form an alkylene ring or an alkylene ring containing 10-, and R2, R, 3, R4 and R5 are each a hydrogen atom or an alkyl group having a carbon number of - , Yl, Y2
, Y3 and Y4 are respectively a polymethylene group having λ to /2 carbon atoms, a polymethylene group having 2 to 2 carbon atoms substituted with an alkyl group having carbon atoms / to d, or sulfo (or a salt thereof)-, carboxyl ( or its salt) - 1 carbon number/
Represents an arylene group or a cycloalkylene group with or without a furkyl- or halogen-t substituent of ~μ, z bar o-1-802-4ut-CH2-'efi, ! and m represents d or /.

Next, typical compounds having the repeating unit of general formula (1) used in the present invention are shown, but the compounds used in the present invention are not limited to these.

(I-41 (I-j) (I-71 (I-/4t) (I-/j) (I-79) n〉g(I-,20) (I-2/) (I-2g ) (I-λri n〉g (knee 2g) n〉da (I-, 27) (I-, 2/) (Ecowa) (Eng'-30) (I-j /) General formula (II) Formula In the formula, M represents a hydrogen atom, a cation, or a protecting group for a mercapto group that is cleavable with an alkali, and Z represents an atomic group required to form a negative to 6-membered heterocycle.This heterocycle is a substituent. or may be condensed. R11 and "12 represent a hydrogen atom, an unsubstituted or substituted aliphatic group, or an unsubstituted or substituted aromatic group, and R11 and R12 may be the same or different, or may be bonded to each other to form a ring.

More specifically, M is a hydrogen atom, a cation (e.g., sodium ion, potassium ion, ammonium ion, etc.), or a protecting group for a mercapto group that can be cleaved with an alkali (e.g., -COB", -COOR", -CH2CH
2COR", -CH2CH2CN, etc., where "2COR" represents a hydrogen atom, an alkyl group, an aralkyl group, an aryl group, etc.).

2 is! Represents a group of atoms necessary to form a negative to 6-membered heterocycle. This heterocycle may be fused and may have substituents on the heteroloam or fused ring.

Examples of Z include tetrazole, triazole, imidazole, benzimidazole, and the like.

Particularly preferred as Z is tetrazole.

The aliphatic group for R1 and R2 has a carbon number/? Preferable alkyl groups and alkenyl groups include methyl group, ethyl group, n-propyl group, n-butyl group, t-butyl group,
n-pentyl group, n-hexyl group, cyclohexyl group,
Examples include n-octyl group, n-dodecyl group, n-octadecyl group, and allyl group.

The aromatic group for R1□ and R12 is preferably an aryl group having from g to 20 carbon atoms, such as a phenyl group and a naphther group.

The ring formed by 几11 and R12 is a ring of carbon atoms a2 to /θ and may contain 0% N or S in the ring members.

For example, 10 CH2+4, +CH2+5, +CH2+ e
, H3 -CH2CH20CI(2CH2-1-CH2CH2N
Examples include CH2CH2-.

Substituents for R11 and R12 include alkoxy groups (e.g. methoxy group, ethoxy group), halogen (e.g. chloro, bromo, etc.), alkyl groups (e.g. methyl group, ethyl group, etc.), phenyl group, alkoxycarbonyl group (e.g. ethoxycarbonyl group), acyl group (e.g. acetyl group), acyloxy group (e.g. acetyloxy group), cyan group, nitro group, alkylthio group (e.g. methylthio group),
Examples include amide groups (eg, acetamido groups) and sulfonamide groups (eg, methanesulfonamide groups).

Particularly preferred as R11 and R12 are an alkyl group having 7 to 7 carbon atoms and a phenyl group, and more preferred are a methyl group, an ethyl group, an n-propyl group, and an n-butyl group.
It is an ethyl group.

Specific examples of the compound of general formula (II) used in the present invention are shown below, but the invention is not limited thereto.

(1[-7') (1-,2) (II-,?) <n -t> (II-r) (II-a) (■-7) n C6Hl3NHCNH (1-, f') (■ -ta) (It-10) (II-//) (II-/2) (II-73) CM-/1 (n-/!> He=N (■-/bu) H H (II-2 /) N=N (II-23) (11-,2j) (H-271 (1-J9) H H (II-3/) r) To=N (n-3j) (If-Jg) Book The compound having a repeating unit represented by the general formula (1) of the invention is a known compound, and is disclosed in Japanese Patent Publication Akihiro 6-7!≠7/
It can be easily synthesized by the method described in the publication.

Further, the compound represented by the general formula (n) of the present invention can be easily synthesized by the method described in JP-A-3721.

The amount of the compound having the repeating unit of general formula (1) is:
There are no particular limitations, but when used in a silver halide emulsion layer, o, oi-zoy 7 mol 7 mol A When used in a protective layer or intermediate layer, o, or~co! Of/' is preferably 9 gelatin.

The amount of the compound of general formula (n) to be added is not particularly limited, but
When used in a silver halide emulsion layer, 76 6~/0
-2 mol 1 mol Ag, protective layer or intermediate layer, 10. 10 moles/total! 9 gelatin is preferred.

The compound represented by the general formula (I) or (II) of the present invention is preferably used in the same layer as the tabular silver halide emulsion of the present invention, and may be used alone or in combination. Good too.

Compounds having a repeating unit of general formula (1), general formula (n
) can be incorporated into photographic emulsions by conventional methods. It is usually dissolved in a solvent such as methanol, ethanol, water, or ketones soluble in cellosolve water and added to the emulsion. It may be added at any stage in the emulsion manufacturing process, but it is generally preferable to add it after chemical ripening.

Next, the tabular silver halide grains used in the invention will be described.

The tabular silver halide grains used in the present invention have a diameter/thickness ratio of! It's more than double that.

The diameter of a silver halide grain herein refers to the diameter of a circle having an area equal to the projected area of the grain. In the present invention, the diameter of the tabular silver halide grains is 0. μ〜j.

θμ, preferably 0.6 to 1. θμ.

Generally, tabular silver halide grains are tabular with two parallel surfaces, and therefore, "floating" in the present invention refers to the distance between the two parallel surfaces constituting the tabular silver halide grains. It is expressed as

The halogen composition of the tabular silver halide grains may be any of silver bromide, silver iodide, silver iodobromide, silver chlorobromide, silver chloroiodobromide, and silver chloride, but silver bromide Silver iodobromide and silver iodobromide are preferable, and silver iodo conjugate having a silver iodide content of θ to 30 molti is particularly preferable.

Next, a method for producing tabular silver halide grains will be described.

A tabular grain is described by Gutoff, Photographic Science and Engineering/Ginary/Gutoff.

Photographic 5science an
dEngineering), Volume 1≠, 2171
-,. 237 pages (/70 years); U.S. Patent No. μ, ≠3≠
, Koichi No., Dohiro, μ/Hiro, No. 310, 4≠, ≠33゜o4Lr No., Do≠, Hiro32. ! British Patent No. 20, //2. /! It can be easily prepared by the method described in No. 7, etc. When tabular grains are used, there are advantages such as increased covering power and increased color sensitization efficiency by sensitizing dyes, as disclosed in the above-cited U.S. Patent No. 3, ≠3≠
, No. 226.

The crystal structure may be uniform, the inside and outside may have different halogen compositions, or it may have a layered structure. These emulsion grains are described in British Patent No. 1.0.17,
No. 7444, U.S. Patent No. 3. JOR, OTR No. 44
, 4Z4Z4Z, ff77 Onibi%B Showt, r-colle
A+! '! j No. 7 Disclosure.

Also, epitaxial contact 1. Silver halides of different compositions may be bonded using this process, and for example, Rhoda/S
, lead oxide, etc. It can be used even if it is bonded with compounds other than silver germide. These emulsion grains are described in U.S. Pat.
02 Hiro, 6g≠ issue, Dohiro, /≠2. L? oo issue, same≠,
1ge, No. 353, British Patent No. 2,03, 7ri No. 2, U.S. Patent No. 3'AP, No. 622, 11.39! , 4
No. 17r, Dohiro.

1tJ3.101, II, 1443,017, 3, Otsu! Otsu, No. 262, 3. ? No. 12,067, Tokukai Sho! Tar/l, 2! It is disclosed in No. r≠O, etc.

The tabular silver halide grains of the present invention can be chemically sensitized if necessary.

As a chemical sensitization method, there is a gold sensitization method using a so-called gold compound (for example, US Pat. No. 2, ttttr, ot.

Same issue! ,! , 20. 010) or sensitization using metals such as iridium, platinum, rhodium, palladium (for example, U.S. Pat.
! No. 2, JJ4, 243) or a sulfur sensitization method using a sulfur-containing compound (for example, U.S. Patent No. 2.λ2.2.λ)
Otsuhiro No.), or reduction sensitization using tin salts, polyamines, etc. (for example, U.S. Pat. No. 2,1 tr7,130, U.S. Pat.
! /r, tr-r, doko, j2/, ri2-layer), or a combination of two or more of these can be used.

Particularly from the viewpoint of high sensitivity, the tabular silver halide grains of the present invention are preferably gold sensitized, sulfur sensitized, or a combination of these.

In the layer containing the tabular silver halide grains of the present invention,
It is necessary that tabular grains with a diameter/thickness ratio of 5 or more are included in the total projected area of the silver halide grains present in the layer, and the diameter/thickness ratio is ! It is preferred that tabular grains of ~3Q occupy 10% or more of the total projected area of silver halide grains present in the layer.

The thickness of the layer containing tabular silver halide grains is from 0.3 to
t, oμ, especially Q,! ~μ, Qμ is preferable.

Further, the coating amount of tabular silver halide grains is o, i~62/
? FL2, particularly o, is preferably 3 to 3 t/m2.

The silver halide color reversal photosensitive material of the present invention has at least one layer each of red-sensitive, green-sensitive, and blue-sensitive emulsion layers, but there is no particular restriction on the order of these photosensitive layers, depending on the purpose. determined accordingly.

As described later, dye-forming couplers are used in the silver halide color reversal light-sensitive material of the present invention, and usually a cyan dye-forming coupler is used in the red-sensitive layer and a magenta dye-forming coupler is used in the green-sensitive layer. A yellow dye-forming coupler is used in the blue-sensitive layer, but different combinations can be used depending on the purpose.

The tabular silver halide emulsion used in the present invention may be used in any of the red-sensitive, green-sensitive and blue-sensitive layers.

When these color-sensitive layers consist of two or more photosensitive layers, they may be used in any layer, but it is particularly preferable to use them in the layer furthest from the support. Also,
It is preferable that the layer has high sensitivity as well as the color-sensitive layer.

The effect of the present invention is maximized when a tabular silver halide emulsion is added to the blue-sensitive layer (particularly the layer farthest from the support when it consists of two or more layers), and when the blue-sensitive layer is , when the other color-sensitive layer areas are also located at the farthest positions with respect to the support.

In addition to tabular silver halide grains, the photographic emulsion layer of the photographic light-sensitive material used in the present invention contains any of ordinary silver bromide, silver iodobromide, silver iodochlorobromide, silver chlorobromide, and silver chloride. It can also be processed using silver halide. However, the silver halide emulsion used in the present invention is of negative type. The preferred silver halide is silver iodobromide or silver iodochlorobromide containing less than about 30 moles of silver iodide. Particularly preferred is silver iodobromide containing up to about 70 mole percent silver iodide.

Silver halide grains in photographic emulsions can be so-called regular grains with regular crystal structures such as cubic, octahedral, or tetradecahedral, or they can have irregular crystal shapes such as spherical shapes. , crystal defects such as twin planes, or their composite forms can also be processed. It is also possible to use a mixture of particles of various crystalline forms.

The grain size of the silver halide can be made into fine grains of less than about o, i microns, dog-sized grains with projected area diameters of up to about 10 microns, monodispersed emulsions with a narrow distribution, or polydisperse emulsions with a wide distribution. It can also be used as a dispersed emulsion.

The silver halide photographic emulsion that can be used in the present invention can be produced by a known method, such as Research Disclosure,
/7j volume, A/ 7 A Hiroj (/ri 7th layer year) February), 2
Pages 2-23, -Is emulsion production (Emulsion Pr
eparation and Types) “Onibido, Volume 117, A/r7/j (/P7F/July), 6
The method described on page 4tIr can be followed.

The photographic emulsion used in the present invention is described in "Physics and Chemistry of Photography" by Grafkide, published by Paul Montell (P.

Glafkides, Chimie et Phys
iquePhotography paul M
ontel, /ri67), "Photographic Emulsion Chemistry" by Duffin, published by Focal Press (G, F, Duffin,
Photographic Emulsion Che
mistry (Focal Press, /ri6
6), “Manufacture and Coating of Photographic Emulsions” by Zelikman et al., published by Focal Press (V, L, Zelikmanet)
al, Making and CoatingPho
tographic Emulsion, Focal
Press.

It can be prepared using the method described in 6≠). That is, any of the acidic method, neutral method, ammonia method, etc. may be used, and the method for reacting the soluble silver salt with the soluble gelatin/salt may be one-sided mixing method, simultaneous mixing method, or a combination thereof. It's okay. It is also possible to use a method in which the particles are formatted in an excess of silver ions (so-called back-mixing method). As one form of the simultaneous mixing method, a method in which the pAg in the liquid phase in which silver halide is produced can be kept constant, that is, a so-called co/trod pad double jet method can also be used. According to this method, a silver halide emulsion having a regular crystal shape and a nearly uniform grain size can be obtained.

Also known silver halide solvents such as ammonia, rhodankali or US Pat. No. 3,27/.

No. 137, Japanese Patent Application Publication No. 31-12360, Japanese Patent Application Publication No. ShojJ-4
2't01, JP-A-63-/1Ilt3/Y, JP-A-1007/7 or JP-A-J'-Hiro-1zz
Physical ripening can also be performed before and after physical ripening in the presence of thioethers and thio/compounds described in No. r2r, etc. Even if this method is used, a silver halide emulsion with a regular crystal shape and a nearly uniform grain size distribution can be obtained.

The silver halide emulsion consisting of the regular grains described above can be obtained by controlling pAg and pHtl during grain formation. For more information, please see Photography Science and Engineering (Photography Science and Engineering).
c5science and engineering
) Volume 6, / J-itz page (196λ); Journal of Photographic Science (Journ
al of Photographic 5cien
ce).

Volume 72, 2≠2-23/pages (/A44), US Patent No. 3,663. British Patent No. 1゜Hiroshi / 3,7
It is written in the Hiro issue.

A typical monodispersed emulsion is an emulsion in which silver halide grains have an average grain diameter of about 0.01 mf and at least 3% by weight of the silver halide grains are within 10≠0% of the average grain diameter. Silver halide grains having an average grain diameter of 0.21 to 2 microns and having an average grain diameter of at least 3% by weight or (grain number) ±
Emulsions with a concentration within the range of 20% can be used in the present invention. A method for producing such an emulsion is described in U.S. Patent No. 3. ! 7≠.

No. 621r, same No. j, t! J, Jri≠ No. 1 British Patent. ≠Described in 13,7 Hiro issue.

Magi Tokukaisho+r-rtoo issue, same number j/-32027,
Same number 11-43097, same z3-i37i33, same≠-≠132/issue, same≠-Tata≠/ri, same! r
-'j 7 A J No. 1, J-r-4 (95'3r
Monodisperse emulsions such as those described in No. )・In the process of silver halide grain formation or physical ripening, cadmium salts, zinc salts, lead salts, thallium salts, iridium salts or their complex salts, rhodium salts or their complex salts, iron salts, iron complex salts, etc. are allowed to coexist. Also work.

These various emulsions may be of the surface latent image type in which a latent image is mainly formed on the surface, the internal latent image type in which the latent image is formed inside the grains, or the type in which latent images are formed both on the surface and inside the grains.

Mayu, US Patent No.≠,orλ,! ! The surface-covered Tano-Rogge/Silver Fide grains described in U.S. Patent No. 2. Tata T, 3r, No. 2, Same 3, /71,21
No. 2, Tokukai Shory-xia, r! The silver halide grains described in No. 1 and 2 can be used in the present invention.

Methods for removing soluble silver salts from the emulsion before and after physical ripening include washing with Nudel water, 70°C/sedimentation method, and ultrafiltration method.

The emulsion used in the present invention is usually one that has been subjected to physical ripening, chemical ripening and spectral sensitization.

The additives used in such processes are based on the research and research mentioned above.
Disclosure & 176≠3 (/ri7♂December)
and Al1r7/l (/1/2011/month), and the relevant parts are summarized in the table below.

Known photographic additives that can be used in the present invention are also listed in the two Research Disclosures mentioned above, and their locations are shown in the table below.

Additive type RD/7tlAJ RD/1716
1 Chemical sensitizer page 23 6≠r page right column 2
Sensitivity enhancer Same as above 3 Spectral sensitizer, page 23-2≠ 6≠ in the right column of page ~ Super sensitizer
6 Hiro Page Right Column 4 Brightener
2≠Page 5 Anti-fog agent 2 Hiroshi~2! Page t μ R Page right column Stabilizer 6 Light absorber, F 2! ~λ6 page 64LP right column~Ilter dye TJO left column ultraviolet absorber 7 Stain inhibitor page 25 right column tro page left to right column 8 Dye image stabilizer 2≠ page, hardener page 2 tri page left column 10
Binder, page 2 & page 11 Plasticizer, lubricant - page 27 tro right column 12 Coating aid, surface page 26-27 Same as above 13 Static prevention
Page 27 Same agent All of the various color couplers can be used in the present invention, and specific examples thereof are described in the patent described in Research Disclosure/76≠3, ■-C-G. . As a dye-forming coupler, a coupler that can be obtained by full-color development of the three primary colors (i.e., yellow, maze/green and cyan) in the subtractive color process is important, and a coupler that is diffusion-resistant, hydrophobic, and has good properties. Specific examples of coequivalent couplers are described in the patents listed in Research Disclosure A776≠3, ■-〇 and item 0, and in addition to the co-equivalent couplers, the following can be preferably used in the present invention.

Typical examples of yellow couplers that can be used in the present invention include hydrophobic acylacetamide couplers with a ballast group t[. A specific example is US Patent No. 2.
≠07. ．． No. 210, No. 2 Ir7J, No. 067 Saiyohi No. 3,213,306, etc.

The use of a two-wheel yellow coupler is preferred for the present invention, as described in U.S. Patent No. 3'IO? ,/ri≠No.3,11
No. 11-7,921, same No. 3. 33.30/No. Okobi Dodaihiro, 022.

620, etc., or Japanese Patent Publication No. Sho J-R-10732, U.S. Patent No. 1I, IAO/, 71λ, IAO/, 3λ4.021
No. 1, RDiror3 <i 7 year ≠ month), British Patent No. 1. ≠λj−, No. 020, West German Application Publication No. 2, 2/? ,
No. 77, No. 2.26/, No. JJL, No. λ, 3 Kota,! ? No. 7 and No. λ.

≠3. Typical examples include yellow couplers of the nitrogen atom dissociation type, which are described in ``I'' and RI No. 2. α
- Pivaloylacetanilide couplers have excellent color fastness, especially light fastness, while α-be/diylacetanilide couplers provide high color density.

Magenta couplers that can be used in the present invention include hydrophobic, i/dazolo/ or cyanoacetyl type couplers with ballast groups, preferably! - Pyrazolone and pyrazoloazole couplers may be mentioned. ! The -pyrazolo/type couplers have an arylamino group at the 3-position and a coupler substituted with an acylamino group at the < is preferable from the viewpoint of the hue and color density of the coloring dye.
, 3ii, orx No. 2.3173.703, same No. J, 400.7tlr, same No. 2,901,373
No., No. 3,042, 6-3, No. 3. isx,r
It is described in yt No. L and same No. J, 936,011, etc. Two equivalents! - As a leaving group for pyrazolo/based couplers, US Patent No. 3io.

The nitrogen atom leaving group 1 described in No. t/ri is particularly preferably the IJ-ruthio group described in U.S. Pat. The pyrazolone type Kazura having a ballast group described in European Patent No. 73AjA can provide high color density. Examples of pyrazoloazole couplers include pyrazolobenzimidazoles described in U.S. Pat. Nos. 3.061 and 32, preferably U.S. Pat.
, pyrazolo[t,/-c](/.

≠] Triazoles, Research Disclosure 2λo<1ytr+June) and JP-A-Sho AO
-Research Disclosure on Pyrazolotetrazoles described in No. 3jjjλ, 24t Co. 30 (/
Examples include pyrazolopyrazoles described in JP-A No. 60-3421. U.S. Patent No. 100 in terms of the low yellow side absorption of the coloring dye and the light fastness.

The imidazo(/,2-1):)pyrazoles described in No. A30 are preferred, and the pyrazolo(/,j-b:l[/,2.≠]triazoles Fi Particularly preferred.

Cyan couplers that can be used in the present invention include hydrophobic and diffusion-resistant naphthol and phenolic couplers, as described in US Pat. Hiro 7≠.

Naphthol couplers described in U.S. Pat. No. 2-3, preferably U.S. Pat.

/≠ Otsu, No. 326, No. 44, 2, 1g, 233 Otsudo @ 4'l Kota Otsu, 2-equivalent naphthol couplers of the oxygen atom separation type described in No. 200 are representative examples. . Specific examples of phenolic couplers include U.S. Patent Nos. 2 and 3, Takota No.
, No. 122, etc.

Cyan couplers, which are robust to humidity and temperature, are preferably used in the present invention, a typical example of which is described in U.S. Pat. Phenolic cyan coupler with alkyl foundation, U.S. Patent No. 2,772,162
No. J, m.

No. 301, No. 1 Hiromu, /26, No. 3, No. 1 Hiromu.

33 Hiroshi, No. 0//, No. ≠, 3λ7, / No. 73, West German patent publication, 3.3 Ivy, No. 7λ, first European patent
Ko/, written in No. 361, etc. n λ,! -Diacylamino-substituted phenolic couplers and U.S. Patent No. 3. ≠
≠No. 4.622, No. ≠+333, Y Tata No., No. ≠,
Hiro! This is a phenolic coupler having a phenylureido group at the λ-position and a V-acylamino group at the j-position, which is described in Al.

Granularity can be improved by using a coupler in which the coloring dye has an appropriate diffusibility. Such a coupler is
US Patent No. 2. Specific examples of magenta couplers are given in European Patent No. 76.470 and West German Application No. J, 2jA.

No. 133 describes specific examples of yellow and magenta Hashian couplers.

The dye-forming couplers and the above-mentioned special couplers can also be used to form dimers or higher polymers. A typical example of a polymerized dye-forming coupler is U.S. Pat. No. 3.1711.1.
No. 20 Oko Hi Do No. +, oro.

It is described in issue 2//. Specific examples of polymerized magenta couplers are given in British Patent No. Co, /02, /7°
No. 3 and US Patent No. ≠, j47,2F, 2.

Couplers that release a photographically useful residue upon coupling are also preferably used in the present invention. As the DIR coupler which releases all of the development inhibitor, the patented couplers described in the aforementioned Research Disclosure, A/7J4tj, items ① to F are useful.

The coupler used in the present invention can be introduced into the photosensitive material by any well-known dispersion method, such as solid dispersion method, alkaline dispersion method, preferably latex dispersion method, and preferably oil-in-water dispersion method. can be mentioned. In the oil-in-water dispersion method, a high boiling point +1 with a boiling point of /7j 0C or higher and a so-called auxiliary solvent with a low boiling point are dissolved in either a single solution or a mixture of both, and then dissolved in the presence of a surfactant. When water is used, the value line is dispersed in an aqueous medium such as a gelatin bath solution. Examples of high boiling point organic solvents are U.S. Pat.
．． 3λ2,027, etc.

The dispersion method may involve phase inversion, and if necessary, the auxiliary solvent may be removed or reduced by distillation, noodle washing, ultrafiltration, or the like before use for coating.

A specific example of latex dispersion process, effects, and latex for impregnation can be found in U.S. Patent No./Tata.

No. 363, West German Patent Application (OLS) No. 1, jlA/.

It is described in Hiroshi No. 27 and No. 2,3111,230.

The light-sensitive materials produced using the present invention may contain hydroquino/derivatives, amine phenol derivatives, amines, gallic acid derivatives, catechol derivatives, ascorbyl/acid derivatives, colorless couplers, and sulfonate derivatives as color antifogging agents or color mixing inhibitors. / Contains amide phenol rust conductor, etc., and has 4 parts.

Various anti-fading agents can be used in the light-sensitive material of the present invention. Organic anti-fading agents include hydroquinones,
2-Hydroxychroma7@, j-hydroxykumara/s, Spirochroma'fJ4s p-alkoxyphenols, hindered phenols mainly including bisphenols, gallic acid derivatives, methylenedioxybenzenes,
Typical examples include amine phenols, hindered amines, and silylated or alkylated ether or ester derivatives of these compounds. Metal complexes typified by (bissalicylaldoximad) nickel complexes and (bis-N, N-dialkyldithiocarbamado) nickel complexes can also be used.

The light-sensitive material according to the present invention includes, in addition to the silver halide emulsion layer,
Protective layer, intermediate layer, filter layer, antihalation layer,
It is preferable to appropriately provide an auxiliary layer such as a pack layer.

In the photographic material of the present invention, the photographic emulsion layer and other layers are coated on a flexible support such as plastic film, paper, or cloth, or a rigid support such as glass, ceramic, or metal that is commonly used in photographic materials. be done. Useful flexible supports include cellulose derivatives (cellulose nitrate,
cellulose acetate, cellulose acetate butyrate, etc.), films consisting of synthetic polymers (polystyrene, polyvinyl chloride, polyethylene terephthalate, polycarbonate, etc.), baryta layers or α-olefins/polymers (e.g. polyethylene, polypropylene, ethylene/butene copolymers) Fully coated or laminated paper, etc. The support may be colored using dyes or pigments. It may be made black for the purpose of blocking light.

The surface of these supports is generally treated with an undercoat to improve adhesion to photographic emulsion layers and the like. The surface of the support may be subjected to glow discharge, corona discharge, ultraviolet irradiation, flame treatment, etc. before or after the undercoating treatment.

For coating the photographic emulsion layer and other hydrophilic colloid layers, examples include dip coating, roller coating, curtain coating,
All known various coating methods such as extrusion coating methods can be utilized. U.S. Patent No. 26 if necessary! r72 number, J74/7P1, J jJ 4 ju
No. f, same No. 3! Or? Multi-layer coating may be performed simultaneously using the coating method described in No. '17.

The processing of the color reversal light-sensitive material of the present invention is carried out by the above-mentioned process: black and white development (first development) → stop → water washing - reversal → water washing → color development → stop → water washing → adjustment bath → water washing → bleaching → Washing→Fixing→
The steps of washing with water → stabilization → drying are used. This step may further include a pre-bath, a pre-hardening bath, a neutralization tower, etc. Nine, stop, reverse,
Washing with water after color development, conditioning bath or bleaching can be omitted. Reversal may be performed in a fogging bath or may be performed in re-exposure. It is also possible to omit adding a fogging agent to the color developing bath. Furthermore, the adjustment tower can also be omitted.

Known developing agents can be used in the first developer used in the present invention. As developing agents, dihydroxybenzenes (fC, for example, hydroquinone), 3-virazolidones (f?:, for example, /-phenyl-3-pyrazolidone), aminephenols (for example, N-methyl-
p-aminephenol), /-phenyl-3-pyrazolines, ascorbic acid, and U.S. Patent ≠, 047,17
Heterocyclic compounds such as / described in No. 2, 2.3, ≠-tetrahydroquinoli/ ring and indoleno ring condensed can be used alone or in combination.

In addition, the black and white developer used in the present invention may include preservatives (e.g., sulfites, bisulfites, etc.), buffers (e.g., carbonates, boric acid, borates, alkanolamines),
Alkaline agents (e.g. hydroxides, carbonates), solubilizing agents (
(e.g., polyethylene glycols, esters thereof), pH1A adjusters (e.g., organic acids such as acetic acid),
1 name agent (e.g. quaternary ammonium salt), development accelerator,
A surfactant, a color toning agent, an antifoaming agent, a hardening agent, a viscosity imparting agent, etc. can be contained.

The first developer used in the present invention must contain a compound that acts as a silver halide solvent, and the above-mentioned sulfite added as a preservative usually plays this role. The sulfite and other usable silver halide solvents include specifically KSCN, Na5CN, KSo
Na2SO3, 2S205, Na2S20
5, K2S2O5, Na2S203, etc.

In addition, a development accelerator is used to impart a development accelerating effect, and in particular, compounds of the following general formula (■) described in JP-A-7-63!10 are used alone or in combination of two or more. Furthermore, the above-mentioned silver halide solvents may be used in combination.

General formula [■] If the amount of these silver halide solvents used is too small, the development progress will be slowed down, and if it is too large, fog will occur in the silver halide emulsion, so there is a preferable amount to use. However, the amount can be easily determined by one skilled in the art.

For example, 5CN- is developer/l west ri o, oar~0,0
．． It is preferably 2 mol, especially 0.0/~o, oiz mol, and 803'- is 0.0! ~1 mol, especially 01
It is preferably 7 to 0.15 moles.

When the compound of general formula [■] is added to the black and white developer of the present invention, the amount added is preferably per liter of developer! ×10-6 mole~! x 10' mol, more preferably /x/0 mol to λ x 7 (71 mol).

The pH of the developer thus adjusted is chosen to be sufficient to give the desired density and contrast contrast, but is approximately 1. Preferably, the range is from j to about ii, z.

To carry out sensitization using such a first developer, usually,
It can be done by extending the time up to three times the standard processing time.

If the treatment temperature is raised at this time, the extension time for the sensitization treatment can be shortened.

The fogging bath used in the present invention can contain a known fogging agent. That is, stannous ion-organophosphoric acid acetate (U.S. Patent No. 3,6/7゜212), stannous ion organic phosphonocarbo/acid acetate (TFF Publication No. 76), stannous ion complex salt borohydride compounds such as stannous ion-aminopolycarboxylic acid complex salt (British Patent No. 1,20, OSO specification);
US Patent No. 2. Heterocyclic amine bora/compounds (British Patent No. 1.0//, 000
boron compounds, such as those in the patent specification). The pH of this fogging bath (reversal bath) ranges over a wide range from the acidic side to the alkaline side, and is in the range of pl(2 to /2, preferably 0, ! to 10, and particularly preferably Vij to 2).

The color developer used in the present invention has a composition Th of a general color developer containing an aromatic primary amine developing agent. Preferred examples of aromatic primary amide/color developing agents are p-) unilene diamine derivatives as shown below. N,N-diethyl-p-phenylenediamine, -monoamino! -diethylaminotoluene, koamino-z-(N-ethyl-N-laurylamino)toluene, Hiro-[N-ethyl-
N-(β-hydroxyethyl)aminocoaniline, -monomethyl-Hiroshi-[N-ethyl-N-(β-hydroxyethyl)aminoanilinzenes ethyl-N-(β-methanesulfamidoethyl)-3-methyl -Hiro-aminoaniline, N-(2-amino-yo-diethylaminophenylethyl)methanesulfo/amide, N,N-dimethyl-p-phenylenediamine, US Pat. No. 34jtPjO,
Nobiichi Amino 3 described in the same 3t 1021 specification etc.
-methyl-N-ethyl-N-methoxyethylaniline,
Hiro-amino-3-methyl-N-ethyl-N-β-ethoxyethylaniline and Hiro-amino-3-methyl-N-
Preferred representative examples include ethyl-N-β-butoxyethylanili/and salts thereof (eg, sulfate, hydrochloride, sulfite, p-toluene/sulfo/acid salt, etc.).

The color developer may also contain other known developer component compounds. For example, as the alkaline agent, buffering agent, etc., caustic soda, caustic potash, soda carbonate, potassium carbonate, tertiary sodium phosphate or potash, potassium metaphosate, borax, etc. may be used alone or in combination.

Color developing solutions usually contain sulfites, which are used as preservatives.
fc (eg, sodium sulfite, potassium sulfite, potassium bisulfite, sodium bisulfite) and hydroxylamine can be added.

If necessary, any development accelerator can be added to the color developing solution. For example, various pyridinium compounds and other cationic compounds represented by U.S. Patent No. 26≠rto4c, Japanese Patent Publication No. 3, U.S. Pat. Cationic dyes such as thallium nitrate and potassium nitrate, neutral salts such as thallium nitrate and potassium nitrate, Patent Publication Akihirohiro-”?! OIA Publication, U.S. Patent 2j33
Tata O Mei Na book, US patent book! 3/r32 specification,
Same lambda! Nonionic compounds such as polyethylene glycol and its conductor, polythioethers, etc. described in Ori No. 70 Specification and Koj77/λ7 Specification,
Organic solvents and organic amines, ethanolamine, ethylenediamine, jetanolamine, etc. described in Publication No. 0 and Belgian Patent No. t12r62, as well as L, F,
A.Photographic by Mas'on
Processing Chemistry P Hiro0-
! The accelerators described in Focal Press-London-/66 can be used.

Furthermore, the color developing solution should contain aminopolycarbo/acid such as ethylenediaminetetraacetic acid, nitrilotriacetic acid, cyclohexa/diaminetetraacetic acid, iminodiacetic acid, N-hydroxymethylethylenediaminetriacetic acid, diethylenetriaminepentaacetic acid, etc. as a hard water softener. There are six.

Competing couplers and compensating developers can also be added to the color developer.

Citrazic acid, J acid, H acid, etc. are useful as competitive couplers.

As a compensating developer, p-aminephenol, N-benzyl-p-aminephenol, /-phenyl-3-virazolid/, etc. can be used.

The pH of the color developing solution is preferably in the range of about r to /3. The temperature of the color developing solution is selected in the range of 200C to 70C, preferably 30C to 10C.

Color development fJ1. The photographic emulsion layer after the image is usually bleached. The bleaching process may be performed simultaneously with the fixing process, or may be performed separately. Iron (IIl) as a whitening agent,
Compounds of polyvalent metals such as cobalt (■), chromium (■), and copper (It), peracids, quinones, and nitrone compounds are used. For example, ferricyanide, dichromate, organic complexes of iron(III) or cobalt(III), aminopolycarboxylic acids such as ethylenediaminetetraacetic acid, nitrilotriacetic acid, 3-diamino-cofuronoξnortetraacetic acid, or citric acid. Acid, complex salts of organic acids such as tartaric acid, malic acid; persulfates, permanganates; nitrosophenols, etc. can be found in kumquats. Among these, potassium ferricyanide, sodium ethylenediaminetetraacetate iron(In), and ammonium ethylenediaminetetraacetate iron(1) are particularly useful. Aminopolycarboxylic acid iron(III) complex [-
Also useful in bath bleach-fix solutions.

For bleaching or bleach-fixing solutions, US Pat.
It is also possible to add all the bleaching accelerators described in Japanese Patent Publication No. OT, Japanese Patent Publication Akihiro J-11RJT, and various other additives.

The fixing bath of the present invention includes, as a fixing agent, ammonium salt, sodium salt, and potassium salt of thiosulfuric acid.
l −, 200f/l (used at about D, in addition,
Stabilizers such as sulfites and isomeric bisulfites, hardeners such as potash alum, acetates, borates, phosphates, carbonates,
PU buffers such as PU buffers and the like can be included. Fixer pH
Fij ~ 10, and the finish is preferably j ~ ri.

Other constituents of the layer containing the tabular silver halide grains of the present invention, such as pigments/dars, hardeners, antifoggants, silver halide stabilizers, surfactants, spectral sensitizing dyes, dyes, ultraviolet rays, etc. There is no limit to the number of absorbers, chemical sensitizers, etc., such as Re5earch Disclosure.
Volume e/7, pages 22-2 (17F/February)
You can refer to the description.

(Example) Next, the present invention will be explained based on 1. Although explained in more detail, the present invention is not limited thereto.

Example-1 A tabular silver halide emulsion was prepared by the method shown below.

Add gelatin JOf, potassium bromide/Q, and 32K gold to 1 liter of water in a container kept at 0C (pAg, /).

Solutions ① and ② in Table 1 were simultaneously added to the double jet method over 40 minutes while stirring to reach a pH of 4,0).

The tabular silver halide grains obtained have a number average diameter/thickness of 7.0, which accounts for the projected area of all grains! It accounts for θ%, and silver iodide is 10! It was morchi. This emulsion was chemically sensitized using a combination of gold and sulfur. The tabular silver halide emulsion obtained in this manner will be referred to as Emulsion A hereinafter.

In order to compare with Emulsion A, spherical grains of silver iodobromide (silver iodide, !molti) were prepared by a double jet method. The average grain size of the emulsion grains obtained was 0.7 μm. This was chemically sensitized using a combination of gold and sulfur. The emulsion thus obtained will be referred to as emulsion B hereinafter.

In addition, emulsions other than Emulsion A and Emulsion B were processed by the double jet method, and pAg7. A monodispersed silver iodobromide emulsion (coefficient of variation of average grain size: 20 cm) was used to ensure that the temperature was maintained at r. These monodisperse silver iodobromide emulsions were prepared to have grain sizes and iodine contents suitable for the emulsion layers to be coated.

Next, a multilayer color photosensitive material consisting of each layer having the following composition was prepared on a triacetate film base, and designated as sample ioi.

7th layer; anti-halation layer black colloidal silver 0.2/m2i external radiation absorber U-10, o ay /rrL2 ultraviolet absorber TJ-20,/t/rrL2 ultraviolet 1B absorber U
-3o, / y71rL2Th boiling point Wf'& solvent
0. / CC/m2 Gelatin layer containing all (dry film thickness μ) First layer: Intermediate layer compound H/ 0.0697 m2 Gelatin layer containing high boiling point organic solvent O-λ o, osα]/m2 (dry film thickness lμ) No. 3111: First red-sensitive emulsion layer Hokuten silver bromide monodispersed emulsion spectrally sensitized with sensitizing dye S-/sensitizing dye S-co...Amount of silver...0. j? /r
rL2 coupler C-10,2f/? F12 High boiling point organic solvent Q -, z O, / 2CC/m
Gelatin layer containing 2 (dry film thickness /μ) μth layer; second red-sensitive emulsion layer sensitizing dye S-/silver iodobromide monodisperse emulsion spectrally sensitized with sensitizing dye S-2... Silver amount...o, tr? /
m2 color f C-/o,t, 17,2
High boiling point organic solvent 0. 2 Gelatin layer (dry film thickness λ, jμ) containing 0.33Cc/m2! layer; intermediate layer compound ) (-/ 0./ f?/m2
Afj' 4-point organic medium 0-, to, lce/fi
Gelatin N (dry chestnut film thickness/μ) No. 61; 1st green-sensitive emulsion layer sensitizing dye S-J Sensitizing dye S-1 is a monodispersed emulsion of iodobromide gun that is spectral-centered.・Amount of silver...0.7 97m2
Power; 'Ra C-2゛0.3j? /rn2 Gelatin layer containing high boiling point organic solvent 0-2 o, 2Af/m2 (dry film thickness /μ) 7th layer: 2nd green emulsion layer Sensitizing dye 3-3 Spectral enhancement with sensitizing dye 3-+ Standard method silver bromide monodispersed emulsion...Amount of silver...0.7 77m2 coupler c-
ti-o, r ry7. ．． 12 High boiling point organic solvent Q-
,20,OjCC/TrL2 compound A/
0. ! ml) 7 m2 gelatin layer (dry film thickness λ, jμ) R-th layer: intermediate layer compound H-to, ozy7 m2 gelatin layer containing high boiling point organic solvent O-20,/S'/m2 (dry film thickness / μ) Thick layer; yellow filter layer yellow colloidal silver 0. / r/m2 compound H-/ 0,02f/m2 compound H
-20, Oj f! /m2 high s point i solvent 0. 2
Gelatin rti containing 0.04tCc/m2 (dry film thickness/μ) 1st O layer; 11th emulsion layer Spectrally sensitized with sensitizing dye 5-J-, spectrally sensitized silver bromide monodisperse emulsion...Amount of silver ...0.4 t/m
2 Silver bromide monodisperse core-shell type particles with all internally covered nuclei・・・・・・・・・・・・・・・・・・・・・・・・・・・
・Amount of silver...0.0397m2 (average particle size O1
, 2μ, (core part containing fogged nuclei, , 0 , /
t, shell thickness = 0.0 + 2jμ)) Coupler C6o,s? /m2 High boiling point invasive solvent 0-2 0. Gelatin layer containing /007m2 (dry film thickness /, evening μ) 1st/layer; 2nd blue-sensitive emulsion layer Silver iodobromide emulsion B spectrally sensitized with sensitizing dye S-t
・・・Amount of silver・・・・・・・・・／、／? /m2 coupler C-s/, λ? /m2 High boiling point shoulder isosolvent Q-,20,23Cc/m2 compound
Gelatin layer containing A-I Olj m9/m2 (dry film thickness 3μ) 1st-? Layer: First protective layer contains ultraviolet M absorber U-/0,/09/m2 ultraviolet absorber '[J-g O,2S'/mz high boiling point organic solvent 0-/0.2rCC/m'' Gelatin layer (dry film thickness μ) 73rd layer: Fine-grain emulsion coated with the surface of the second protective layer...Amount of silver...O
0/y/rrL2 gelatin layer (dry film thickness o, rμ) containing polymethyl methacrylate particles (average particle size 1.J'μ) In addition to the above composition, each layer contains gelatin hardener H-3 and an interface. All activators were added.

The compounds used to prepare the samples are shown below.

C−λ C−H3 −t U−/ −C4Hg U−≠ OH OH −j 0−,2 S−/ C3H6SO3H −j A−/ 1/
Layer: Sample IO was prepared in the same manner as Sample 10/, except that the λth light-sensitive emulsion layer was coated.

Next, Sample I was prepared, except that the compounds of the present invention shown in Table 1 were coated on the 11th layer: the Jth blue-sensitive emulsion layer together with the emulsion layer.
Samples IO3 to Nog were prepared in the same manner as O-, and the resulting samples were exposed through a pattern for sharpness measurement with white light at a light source of 1rO00 and an exposure surface illuminance of 000 lux. Then, a color image was obtained by performing the current processing described below. The processing steps and processing solution used here are as follows.

Distance II Awe Process Time Temperature First development 2 minutes JJ”C Water washing - minutes Reversal 2 minutes Color development GL minutes Adjustment 2 minutes bleach white Fixed arrival attendance Water Washing Participation Stable for 7 minutes at room temperature drying The composition of the treatment liquid used is as follows.

No.-Developer water 7oO
ml Nitrilo N, N, N -trimethylenehonufonic acid pentatrilam salt λI Sodium sulfite JO9 Hydroquinone monosulfur 30g Sodium carbonate (-hydrate) 30fil
-Phenyl-≠Methyl-Hiro- Hydroxymethyl-3-pyrazolitone λμ
Potassium bromide -, jg Thiocyan & -717 Lium 1.29 Potassium iodide (o, 156 solution) -21 Add water 1000F116 inverted liquid water 7oo
rntnitrilo-N,N,N-trinotylenephosphonic acid pentatrilam salt 3I 1st chloride
Tin (trihydrate)/9p-aminophenol 0. /i Sodium hydroxide
r! iglacial acetic acid
/jyxl add water
iooθd3 crossing base! ! Wednesday 7oo
tnl Nitrilo-to, N,N-trimethylenephosphonic acid pentatrilam salt 3g Sodium sulfite 7I Sodium triphosphate (/dihydrate J Jtji Potassium bromide /i Potassium iodide (o,
i% solution] Sodium hydroxide
3g citradinic acid
/,19N-Ethyl-N-(β-methanesulfonamidoethyl)-3-methyl-quaaminoaniline sulfate //i3,t-dithiaoctane-7,r-diol Ill Add water to adjust 10θ0tal liquid water 700
rd sodium sulfite 72g.

Sodium ethylenediaminetetraacetate (trihydrate) rg Thioglycerin O0μN Glacial acetic acid
Add 3d water
/ 00 (Nll Kametan liquid water '. DI
Sodium ethylenediaminetetraacetate (trihydrate)-29 Ethylenediaminetetraacetic acid &llc (III) Ammonium (trihydrate) 120g Potassium bromide
Add toog water
1000g fixer water r o
o at sodium thiosulfate to, o
g Sodium sulfite s, og1i Sodium fmite j, 09 Add water Nooooxl stable liquid water room
l Formalin (37 weight 961!, 0ys
1 Fuji Drywell (Fuji Film ■Kyo Surfactant) J, 0rnl water added / 000111 The sharpness of magenta and white color of the treated sample of this Lera was measured.

Sharpness was determined by MTF value.

Table 2 shows the MTF values at 23 IO frequencies.

In addition, the optical density of yellow m& was measured through a blue filter for a sample exposed and developed in the same manner except that a sensitometric wedge was used for the edge of the sharpness measurement pattern, and the constant density CD = / The sensitivity was expressed as the reciprocal of the exposure amount required to obtain a yellow density of , 0).

``In addition, after aging at RH for 2 days at tO°C x 60, the same exposure, processing, and optical density measurements were performed.

The obtained results are shown in Table 2. From Table 2, it can be seen that compared to the sample (sample number 10/) in which spherical emulsion B was applied to the first blue-sensitive layer, the plate-shaped emulsion A was applied to the first blue-sensitive layer. sample applied to (sample number i.

-), it can be seen that the sharpness is significantly improved.

However, the decrease in the maximum concentration of this sample after aging at high temperature is greater than that of comparative sample 10/.

In contrast, samples (sample numbers IO3~) in which tabular emulsion A and the compound of the present invention were applied in combination to the second blue-sensitive layer λμ
] shows an improvement in sharpness without a decrease in maximum density over time.

The above results demonstrate that the compound of the present invention has the effect of preventing the decrease in maximum density over time that occurs when a tabular emulsion is used in a color reversal light-sensitive material. If used in color reversal photosensitive materials,
This shows that it is possible to significantly improve the sharpness of photosensitive materials without deteriorating their photographic performance during storage.

Example 1 Sample 01 was prepared in the same manner as sample 1 of Example 1 except that emulsion B of Example 1 was applied to the seventh layer: the first green-sensitive emulsion layer.
was harvested.

Next, in place of emulsion B used in the first green-sensitive layer of sample 20/, emulsion B of Example I was used in the second green-sensitive layer, and C-3 was used in place of coupler C-2. Sample 0- was prepared in the same manner as trial y#+-〇/ except that the seventh green-sensitive layer was coated with the following. (C-3 coating amount 0.2 tμ/m2) Next, a sample was prepared in the same manner as Sample Co. O-2 except that the compound of the present invention shown in Table 3 was coated together with the emulsion A on the second green-sensitive layer. 203~-A cog was produced.

These samples were prepared in the same manner as in Example 7 using K11I! Among the next color images obtained by light processing, the sensitivity of the magenta image was measured, and the sharpness of the cyan image was measured.

The results obtained are shown in Table 3.

Table 3 shows that compared to sample 20/, which had 91 spherical emulsion B coated on the first green sensitive layer, the sharpness of sample KoOko, which had flat emulsion B coated on the first green sensitive layer, was significantly improved. However, it can also be seen that the sensitivity is high. but.

The decrease in the maximum temperature of this sample after aging at high temperature is greater than that of comparative sample 01.

On the other hand, tabular emulsion A and the compound of the present invention were applied in combination to the second green-sensitive layer, and the following samples (see sample numbers 03 to J)
It can be seen that sharpness and sensitivity are improved without a decrease in maximum density over time.

Example 3 Tabular silver halide emulsions C to E were prepared in the same manner as Emulsion A in Example 3, except for changing the amount of thioether contained in the liquid and the reaction temperature in Table 1 of Example 3. .

The diameter/thickness ratio (rO%'5 (value when the sum of the projected areas of grains having a diameter/thickness ratio greater than or equal to this value accounts for the sum of the projected areas of all grains) of the obtained emulsion is As shown in Table 1.

Finally, comparative spherical emulsion F and tabular emulsion C-El-1 prepared in the same manner as emulsion B in Example 1 were used in place of Emulsion A in Example 1 and 1st/layer: Sample JO/~30μ was prepared in the same manner as Sample 10-2 of Example 1 except that the emulsion layer was coated.

Next, the compounds (■-/) and (n-2) of the present invention in the amounts shown in Table 1 are applied to the first/layer: second blue-sensitive emulsion layer, respectively, together with the tabular emulsion C-E. Other than that, sample 302
Samples JOj to jOr were prepared in the same manner as in 30 Hiro.

The obtained samples were exposed and processed in the same manner as in Example 9 to obtain color images.The maximum intensity and sensitivity of the yellow image and the sharpness of the magenta and cyan images of these processed samples were determined. Measured in the same manner as Example/.

The results obtained are shown in Table 1.

Samples 302 to 301A, in which flat emulsions C-Ei were applied to the second blue-sensitive layer, were all different from Sample 30, in which the spherical emulsion H was applied to the second blue-sensitive layer. It can be seen that the sharpness is significantly improved. However, the decrease in maximum concentration of these samples after aging at temperature is worse than that of the comparative samples.

On the other hand, it can be seen that samples 301 to 30t, in which the tabular emulsion and the compound of the present invention were applied in combination to the blue-sensitive layer, had the effect of preventing a decrease in the maximum density.

Here, as the "diameter/thickness ratio" increases, the sharpness improves. However, the degree of decrease in maximum concentration after aging at high temperature of the sample with a relatively low "diameter/thickness ratio" (sample number! '0' j, 306) was improved to the same level as that of the comparative sample JOl. It can be seen that in the sample with a high "diameter/thickness ratio" (sample number 3Q7), the degree of improvement in the decrease in maximum concentration after aging at high temperature is somewhat small. However, even for particles with a relatively high "diameter/thickness ratio" (in other words, a large surface area per unit weight), as in Sample 301, by increasing the amount of the compound of the present invention added. It can be seen that although the sensitivity decreases slightly, the decrease in maximum concentration after aging at high temperature recovers to the same level as the comparative sample.

Claims (1)

[Scope of Claims] A silver halide color reversal light-sensitive material having at least one layer each of red-sensitive, green-sensitive, and blue-sensitive emulsion layers, which includes: (1) a flat plate having a grain size of 5 times or more the grain thickness; an emulsion containing shaped silver halide grains, and (2) at least one of a compound having a repeating unit of the following general formula (I) and a compound represented by the general formula (II), and the grains are in the same layer. A silver halide color reversal light-sensitive material, characterized in that silver halide grains present therein occupy at least 50% of the total projected area. General formula (I) ▲There are mathematical formulas, chemical formulas, tables, etc.▼ Here, R_1 represents -OR, -SR, ▲There are mathematical formulas, chemical formulas, tables, etc.▼, and R and R' are respectively,
Hydrogen atom, alkyl group having 1 to 12 carbon atoms, hydroxyalkyl group, sulfoalkyl (or its salt) group, carboxyalkyl (or its salt) group, aralkyl group, or sulfo (or its salt)-, carboxyl (or its salt) group, represents an aryl group having 6 to 12 carbon atoms, or a cycloalkyl group, with or without a C 1 to 4 alkyl, C 1 to 4 alkoxy, or halogen substituent; Alternatively, R and R' may both form an alkylene ring or an alkylene ring containing -O-, and R_2, R_3, R_4 and R_5 each represent a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, Y_
1, Y_2, Y_3 and Y_4 are respectively a polymethylene group having 2 to 12 carbon atoms, a polymethylene group having 2 to 12 carbon atoms substituted with an alkyl group having 1 to 4 carbon atoms, sulfo (or a salt thereof), carboxyl (or a salt thereof) represents an arylene group with or without a C1-C4 alkyl or halogen substituent, or a cycloalkylene group, and Z is -O-, -SO_2- or -CH_2 -, and l and m represent 0 or 1. General formula (II) ▲ Numerical formulas, chemical formulas, tables, etc. are available ▼ In the formula, M represents a hydrogen atom, a cation, or a protecting group for a mercapto group that is cleaved with an alkali, and Z forms a 5- or 6-membered heterocycle. represents the atomic group required to This heterocycle may have a substituent or be fused. R_1_1 and R_1_2 represent a hydrogen atom, an aliphatic group that is unsubstituted or has a substituent, or an aromatic group that is unsubstituted or has a substituent, and R_1_1 and R_1
_2 may be the same or different, or may be bonded to each other to form a ring.