JPS59154436A - Preparation of process photosensitive material based on silver halide - Google Patents

Abstract

PURPOSE:To improve suitability for reducing treatment without depending on increase of coating silver amt. by coating gelatine to a specified amt. on the upper layer of a nonsensitive material. CONSTITUTION:A thin gelatine layer is formed to 0.05-0.5g/m<2> coating amt. by coating gelatine soln. contg. a diffusion-resistant high molecular hardening agent on a nonsensitive upper layer. By this method, increase of viscosity with time which is often recognized when a high molecular hardening agent is added to coating soln. for nonsensitive upper layer contg. large amt. of gelatine is avoided. Since the thin gelatine layer is not coated directly on a photographic emulsion layer but coated on the upper nonsensitive layer, sufficient suitability for reducing treatment and film strength are secured. Further, if a mat agent is contained in said upper nonsensitive layer, the overall transparency of the coated film is improved by coating a thin gelatine layer on the upper nonsensitive layer.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for producing a silver halide photosensitive material for plate making (hereinafter referred to as a sensitive material for plate making). The present invention relates to a method of manufacturing a photosensitive material for plate making using technology.

Photosensitive materials for plate making are used to convert shading images into halftone images in the printing industry and other fields. +j This is a sensitive material used in photolithography processes such as photographing images.

Normally, when obtaining printing plates using these plate-making photosensitive materials, the pressure is reduced on the plate-making photosensitive materials in order to reproduce subtle tones of images that match the printing characteristics and to satisfy artistic expression. Processing called processing is often performed to slightly or completely correct the image, such as reducing the area of halftone dots or expanding or reducing the width of line drawings.

For this reason, one of the most time-consuming aspects of a photosensitive material for plate making is whether or not it has suitability for force reduction processing.

To reduce the pressure of a photosensitive material for plate making that has formed a halftone image or a line image through exposure and development, a method is used in which the metallic silver forming the halftone dots or line image is brought into contact with a crystalline solution. It is being There are many known reducing fluids, such as those described in The Theory of Photographic Process by Mees.
hePhotographicProcess) No. 73
Pages f to 739 (/YjlA, published by Macmillan) contain permanganate, ferrous salt, ceric salt,
Depot solutions using depot ingredients such as red blood salts, romate salts, and overvalue salts have been described.

However, since 1-power processing ultimately means oxidizing and dissolving the silver image, when applying power reduction processing to a halftone dot image, when reducing the halftone dot area through power reduction processing, the blackness of the halftone dots increases at the same time. A decrease in the chemical concentration occurs.

Therefore, the range that can be corrected by the force reduction process is limited by the degree of reduction in blackening density per halftone dot that occurs when the area of one point of 44L is reduced by 9. By converting, the measure of the range in which the halftone image can be corrected is how much the halftone dot area can be reduced while keeping the blackening density of one halftone dot above a certain value (7
Meitoku 1 can be expressed by writing it down.

In this specification, when the blackening density of a halftone dot is reduced by force reduction treatment to a value K that is just below what is necessary in the photolithography process, the halftone dot area is compared to the halftone dot area before treatment. The nth degree of force reduction/this is expressed as ``during force reduction,'' and the time required to reach that point is expressed as ``force reduction time.'' It goes without saying that the wider the wave force, the higher the suitability for reducing force. In addition, the depowering time should be an appropriate length, preferably several seconds, since it is difficult to perform the depowering operation if you use a short sword or a long sword.

As a technique for improving suitability for force reduction treatment, for example, a force reduction method that includes a mercapto compound during force reduction treatment is known, which is described in Japanese Patent Application Laid-Open No. 2003-110003. However, it is a special reducing fluid, and its reducing speed is different from commonly used reducing fluids, making it difficult to use. In addition, the emulsion film can be coated with a soft coating to increase the covering power and density.
Although it is possible to improve the suitability for reducing force by widening ['], the required membrane strength cannot be obtained with this method.

The most effective method among the techniques for improving the θ-formation processability over a wide range of conditions during reduction is to increase the amount of silver used to form an image. The reason is that the power reduction process is 4 as shown in 7.
．． The purpose of this process is to oxidize and dissolve the silver image using a reducing solution, so generally speaking, the greater the amount of silver per unit area that forms the silver image, the wider the range in which the image can be corrected to JIF6 by the reducing solution. It is.

Therefore, if the amount of silver halide used in the photosensitive material for plate making is increased per unit area, the reduction will increase, but as is well known, silver is extremely expensive and commercially available. Unnecessarily increasing the amount of coated silver) 11 is undesirable from both the cost and resource saving standpoints of photosensitive materials for plate making.

Therefore, one of the important issues in the industry is to produce photosensitive materials for plate making having the necessary properties using as little silver as possible.

As a result of examining various measures to improve this problem, the inventors of the present invention have found that by using a diffusion-resistant polymer hardener in the non-photosensitive upper layer, the degree of hardening of the non-photosensitive upper layer can be improved. We have developed a technology to independently control the degree of hardening of each layer (hardening for each coated layer) and to increase the degree of hardening of the non-photosensitive upper layer.We have developed a technology that significantly improves the suitability for reducing force by widening the force reduction period. I started it (Special application 1st-i! Aott issue). However, in the course of further research into this technology, it was discovered that when using a polymer curing agent, a problem called viscosity thickening over time tends to occur.

In the industry, when using a hardening agent, after preparing a coating solution for a photographic layer - the time (hereinafter referred to as "dissolution time") during which the coating solution cools during coating, the formation time is determined in the preparation tank during the liquid feeding process. The hardening agent and gelatin react in a liquid preparation and liquid delivery system such as a hopper (hereinafter referred to as "liquid supply device") that supplies and coats the coating liquid for the photographic layer onto the support, and the hardening agent and gelatin react over time. At the same time, the viscosity increases, causing irreversible solidification of gelatin, which changes the properties of the coating solution for photographic layers, making it difficult to coat, and leaving undissolved substances on the coated surface, mainly due to the hardening reaction of gelatin. It often occurs that clumps are applied and deteriorate the quality of the coated surface. This is a problem called viscosity increase over time.

For example, as described in West German Patent Publication No. 214ff and Udo No. 6, a hardening agent is continuously added to the S base of a diffusible low-molecular hardening agent just before the molding process to increase its viscosity over time. In addition, it is possible to prevent the viscosity from increasing over time by changing the pH of the coating solution or distributing the curing agent to the coating solution for layers other than the intended layer. However, in the case of a diffusion-resistant polymer curing agent, it is difficult to achieve uniform curing using the first method, and since there is little variation in the curing rate due to p13, the second method is used. Also, the third method cannot be adopted because it is not effective and has diffusion resistance.

In addition, microparticles called matting agents are often added to the non-photosensitive upper layer of photosensitive materials for plate making in order to improve smoothness (1) and adhesion resistance. It has been found that a problem arises in that the opacity (referred to as haze) increases.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a process for producing a photosensitive material for plate making that improves suitability for reduction processing without relying on increasing the total amount of coated silver, and without causing thickening over time. A second object of the present invention is to provide a method for producing a photosensitive material for plate making in which the coating layer has excellent transparency.

The object of the invention is to coat on a support at least one light-sensitive silver halide emulsion layer and, on top of said emulsion layer, a non-light-sensitive upper layer consisting of a hydrophilic colloid, simultaneously - or after the coating. Add a diffusion-resistant polymeric hardener to the gelatin solution in an amount sufficient to make the melting time of the layer formed by the gelatin solution longer than the melting time of the emulsion layer. The composition containing the liquid is coated on top of the non-photosensitive upper layer.
,03g/m2-0,t,! This is accomplished by applying ir/mzK&R.

The greatest feature of the present invention is that the gelatin solution containing a diffusion-resistant polymer hardening agent is applied to the non-photosensitive upper layer of soil in an amount of 0.0 gelatin! The key point is that the gelatin layer is formed by coating the gelatin at a temperature of 2 to 8 i/m2. To this day'
Therefore, when a polymer curing agent is added to a coating solution for a non-photosensitive upper layer that has a large amount of gelatin coated, as in the past, Rira'i1.
The problem of thickening over time can be avoided. Furthermore, since such a thin layer of gelatin is coated not directly on the emulsion layer but on the non-photosensitive upper layer, sufficient suitability for reduction processing and film strength are ensured. Further, by applying a thin layer of gelatin on top of the non-photosensitive upper layer containing a matting agent, there is an advantage that the transparency of the entire coating film is increased.

Although there is no particular restriction on the gelatin used in the gelatin thin layer of the present invention, it is preferable to use so-called oil-free gelatin, which has less oil adhesion compared to photographic areas. The amount of gelatin applied is 0.03
~0.1g7m2, especially 00,! -~08.2. ! iI
/TL2. (7) It is desirable to dilute the gelatin concentration of the seratin solution.
-2% by weight, and more preferably o3~/yellow weight. As a coating solvent, water or an organic solvent (particularly one that is compatible with water) can be used, but water is usually most preferred. Various surfactants can be added to this gelatin solution as coating aids. As surfactants, for example, natural surfactants such as zaponin-alkylene oxide series, G1
1 Nonionic surfactants such as sidole, carboxylic acids,
Sulfonic acid C eg US Pat. No. 3.4! /! , t≠2), anionic surfactants containing acidic groups such as phosphoric acid, sulfuric esters, phosphoric esters, amino acids, amino sulfonic acids, and sulfuric or phosphoric esters of amino alcohols. Preferably used.

The diffusion-resistant polymer hardening agent used in the present invention is a polymer compound having a reactive group that can react with gelatin,
Because it is a polymer, it has excellent diffusion resistance. Specifically, Japanese Patent Application Laid-Open No. 1999-1992-4TI, British Patent No. 1.3.2. t, 9
No. 7/, U.S. Patent No. 3. Patents such as t7/, 2jt, etc.
Andori, M.

13urnessJ, pouradier"l'heT
hcoryofthephotographicpro
cess”gthed, (T,, 1. Jamesed,
'l.

7+JacmillanNewYork-/177.1
) p1≠, and G, A; Campbej L, I,, R.

Hamilton, 1. S, ponticello.

”PolymericAm1neandAmmoniu
m3 alts” (E, J, Goethalsed,)p
ergamonpress, New York/Re7ri.

pp3.2/~322. Examples include polymeric hardeners that are known to degrade when left unattended.

This madder molecular curing agent has the following general formulas (I) and (1
1) and (1■) are preferred, especially those of general formula III
That thing is so clever.

R.

? 02-R2 In the formula, Am is shown to the right of 1-. represents an ethylenically insoluble monomer that can be copolymerized with the same monomer level.

-! In the formula, R1 represents a hydrogen atom or a lower argyl group having six carbon atoms (rj/). Q is R.

-CO2-1-CO=N- (I F koshi (, 1 represents the same as above) or B to any of the ar11-lene groups having all 70 carbon atoms) .I.

R.

-C02-1-CON-(Shi1shi■(The river is also
The same thing as the 111i with at least one of the bonds from 3 to 111i with the carbon:
Jij；,■(,1
1-5o2-1S(-J3-1-S(,12N-1RxR
t1 = 1 -NCON-1-NC02 (R, 1id represents the same as above - t) A divalent compound containing at least one of the bonds / having 72 carbon atoms 1" R2 represents a vinyl group or a functional group forming a small body thereof, and is either -CH=CH2 or -CH=CH2X.X is a group that can be substituted by a nucleophilic group, or a base. represents a group that can be removed by removing i4!tL at the first position of HX.

In the formula, x and y represent molar percentages,
y takes a value of / to 100.

Examples of ethylenically unsaturated monomers represented by A in formula (1): ethylene, propylene, /-butene, isobutyne, styrene, chloromethylstyrene, hydroxymethylstyrene, sodium vinylbenzenesulfonate, sodium vinylbenzylsulfonate, to, N, N-1 remethyl-N
-Vinylbenzyl ammonium chloride, N, N-
Dimethyl-N-benzyl-N-vinylbenzylammonium chloride, α-methylstyrene, vinyltoluene, ≠-vinylpyridine, J-vinylpyridine 1, benzylvinylpyridinium chloride, ~-vinylacetamide, N-vinylpyrrolidone, /-vinyl - co-methylimidazole, monoethylenically unsaturated esters of carboxylic acids (e.g. hydrogen acetate, acryl acetate), ethylenically unsaturated monocarboxylic acids and their salts (e.g. Acrylic acid, methacrylic acid, itaconic acid, maleic acid, sodium acrylate, potassium acrylate, sodium methacrylate), maleic anhydride, esters of ethylenically unsaturated monocarboxylic acids or σ dicarboxylic acids (for example, M' n-butyl acrylate, 0-hexyl acrylate, hydroxyethyl acrylate, N,N-diethylaminoethyl acrylate, methyl methacrylate, n-butyl acrylate +7 salt, Hydrogenyl methacrylate 1, Hydrogynoethyl methacrylate, Chloroethyl methacrylate, Methoxyethyl methacrylate, N,N-diethylaminoethyl acrylate, Thi,N,N-1 RuN-methacryloyloxyethylammonium p-
Toluenesulfoner, t,N,N-diethyl-N-methyl-N-methacryloyloxyethylammonium p-
toluenesulfonate, dimethyl itaconate, maleic acid monobenzyl ester), ethylenically unsaturated monocarboxylic molecules (d amides of dicarboxylic acids (e.g. acrylamide, N.

N-dimethyl°acrylamide, N-methylolacrylamide, N-(N,N-dimethylaminopropyl)acrylamide, N,N,N-+-limethyl-N-(N-
Acryloylpropyl) ammonium p-)luenesulfonate, 2-acrylamido-2-methylpronoξsulfonic acid, acryloylmorpholine, methacrylamide, pe.

N-Dimethyl-N'-Kryloylpropanediamineprobionate betaine, N,N-dimethy/L-N'-
methacryloylpropanediamine acetate betaine)
.

In addition, when using a cross-linked latex with the 11 polymer of the present invention, (1, A contains at least two or more ethylenically unsaturated groups capable of copolymerization, in addition to the above-mentioned ethylenically unsaturated monomers). monomers such as divinylbenzene, methylene bisacrylamide, ethylene glycol diacrylate, trimethylene glycol diacrylate, ethylene glycol dimethacrylate,
trij mechi 1/ng 11. Cole dimetac IJ rate,
Neopentylglyconyl dimethacrylate 4) is used.

R1's IK phantom group, engineering, chill method,
The poxyl group and n-hexyl group contain moss;

In Q, the following jl,) can be cut.

L contains groups such as (quaternary).

-CH2CO2CHz- -CH2C02CH2Cf(2- -CII(2CI-42C02CI2CH2-(-CI
-12-15CO2CH2CH2-+C■”2+1oc
o2c■-(2cH2--CH2NHcOcH2- -CH2NHCOCH2CH2- +CH2+3NHCOC)l2Cl2-+CH2+sN
HCOCH2CH2- ÷C1]2-)18N)(CHCH2C)I2--CH
20CI-j2- -CH2CH20C1 (2C block) 2Ck12-CI-1
,3CH3-,NCl42CH2-,-CH2NC1-1t2CH
2--COCH2CI-12- -CI-f2COCl:i2CH2- -SOCH2CH2= -CH25OCH2C) (2- -SO2C)+2CH2- -8O2CH2CI2SO2CFi2CH2--802
CH2CH2SO2CH2CHC1: (2-('HI SO3C142CH2C)]2- -SO3CH2C02CH2CH-2--8O3CH2
CH2(:02C)I2CH2--SO2NHC)I2
CO2CH2C) (2--S02NHCH2C)-12
CO2Cf42CI-12-1beHCONHCH2C1
-12- -CH2NHCONHCk”, 2Cf-12-NFi
C02CIj2CI-12- -CI-12NHC02CI-12CI-12 complete set (1
) in 1: L2 has a certain μ-containing force (d).

-C)-1=CH2, -CI-12CH2z, -CH2
CH2, [3r.

-CI42C)120+-1, -C112CH202C
C1-13.

-CH2Cf-f02cctl”3, -CH2CH2(
)2CCHry4'.

Uma molecule 1 of the autopsy ()
F≠.

/l/, No. 4107, and has a repeating Tosa represented by the following formula (II).

+A-)X+CH2C+y 1 1 In the formula, A is the monomer potential shown on the right (5) platform width l
It is a mixture of 1 fe ethylene, 1 raw indilutable monomer, or a monomer.

In the formula, X and y represent mole percentages, xi takes a value of 10 to ξ-cents, and y takes a value of 0 percent. R, is a hydrogen alkyl group with a carbon 1!” 1t' is -CH=
, CH2, or -C1-]zCH2,X. X
can be pushed 16 times depending on the number of votes.ノ, 1, or salt = ノ・(by mind f−(X in the form ++st:N;li
tt, u/c; fully expressed.

L' is selected from alkylene (more preferably/from alkylene having 2 carbon atoms such as methylene, ethylene, impethylene, base), having 72 carbon atoms from Arylene (for example, linkage 4 selected from phenylene, tolylene, naphthalene, etc.)
, or -COZ-1 or -COZ1(・3-
5 [Here, R3 is alkylene having 6 carbon atoms from /, or arylene having 72 carbon atoms from B, and Z is an oxygen atom or t/''iNH].

Examples of A in formula (II) include the same as A in formula ['l]. A common example of formula [■] is R in formula [1]
Contains the same examples as 1. 13 of formula (lI). ’ example 1
-, the same example as R2 of formula [1] is included in freezing n-.

Fourthly, other favorable business units have 1,000 stamps.

53μ, it seems to be written in the μTata code;
11) is the repeating unit expressed by E.

■Momo+A →
17
;■ 9 is water*Ii, i is an alkyl group having 4 carbon atoms from /, and L is a divalent linking group having 2θ carbon atoms from / (historically preferred); -CONl-1-
or the number of carbon atoms containing at least 7 of -C〇- bonds/
~/2 divalent group); X is an active ester group; x and y represent 6 molar fractions;
It takes O value and is n1tdO or /.

Examples of A in formula (II+) include the same examples as in formula (I).

R in formula (10) includes the same thing as in the example of IL'l in formula (1), and is added.

L in formula (II+) contains the following groups! It will be done.

-CONHC'H2-, -CONHCH2CtI2-.

-CON,)lcH2cH2cH2-.

-CONHCH2CH2CH2CH2CH2-.

-COCI(2CH20COCH2CH2-.

-CONHCH2CONHCH2-.

-CONHCH2CONHCH2CONHCH2-.

-COC) (2-.

-CONHCH2N, HCOCH2CH2SCH2CH
2-.

-CONHCf-]20cOcI-12CH2-i etc.

XK in the formula [ta] includes the following groups.

0O O2 N(12u C near 2 -C02(rii', -12C(, lNN2-CO2C1
'-12C0CL13-CO2N=ClICl-13-
C()2N=(2((Nl3)241)2(zo112(
River 2. BrC02C) 1゜ (Mi11゜CNH3 -C02CJ-12CI+2ω rhyme CH3ff←) It's not a thing.

pt+CH2Ctl→8 C()NHC(CI(3)2CH2S('+3NaP-
f(-CI-+2CI-), (,:Ooh・1 pq+CH2CH-).

OOM <-c1i□C”+!l'X/y=37/□ C00CHCH0COCI+2So2CH.CH□C1
2 (-C112CH→yX/y=3// C(INIIcOcH2C1(.802C)]2CI-
1□ci-<-C1,l. CH charge x/y-210//□ C0N11CI-ICOCl12C)12S02CT-
(2CH2C/+Cl-1□Cl-1+yx/, near,
0//C0NHCHNl-1cOcH2C)+2802
C)]=Cl-12P-/0(-CHCH-) C00(CI'2) 3803Na P-//(-CH,,CH-), 0NH2 P/ノ+CHCT-]NowC0NI(C(CI'3) )2C■-■2'-8O□Na
ecI42cH-) In the case of something that glares at the sword, Hiko〈X can be O or Shiri 7, and y can take a value from 1 to 100.

The synthesis of the polymer curing agent used in the present invention is described in detail in the above-mentioned Japanese Patent Application No. 4-106-106, so it is unnecessary to refer to that text.

The polymeric hardener is added to the gelatin solution directly or more preferably dissolved in water or an organic solvent.

The amount added is sufficient to make the working time of the thin layer formed by this low-molecular-weight gelatin solution ``f: exposure time'' longer than the melting time of the silver halide emulsion layer.

In the present invention, the fact that the melting time of the thin layer formed by the low concentration gelatin solution is longer than the melting time of the emulsion layer means that the layer formed by the low concentration gelatin solution is hardened more strongly than the emulsion layer L. means.

In the pharmaceutical industry, methods for evaluating the degree of hardening of a cured layer include the degree of swelling when the cured layer is swollen with a certain solution, or scratching with a needle-like stylus 2 with a one-digit load.
It is well known that the scratch strength is the load that causes scratches, but in order to evaluate the purpose of the present invention, K immersed the cured film in a solution kept at a certain temperature, and the film began to melt. melting time:
It is most effective to evaluate using M'l'li. To measure the melting time, use yto, xNNaOH kept at 7!0C.
It is best carried out in solution (although not necessarily in solution).

In the present invention, it is preferred that the melting time of the thin layer formed by the gelatin solution is longer than f'L of the emulsion layer by at least 10 seconds, particularly at least 100 seconds, as determined by the above-mentioned measuring method.

The gelatin solution 1 (41 dilute solution) prepared in this manner is coated onto a light-sensitive silver halide emulsion layer by a coating method known in the field of photographic light-sensitive materials, such as extrusion coating, curtain coating, or air knife coating. A non-photosensitive top layer is applied. In addition, if necessary, these full-layer coatings may be applied, for example, US Patent No. 2.7T/, No. 7RI1, British Patent No. R37.0? It is also possible to simultaneously apply multiple layers using the method described in the specification of No. J.

Coating film thickness fd dry film thickness of gelatin solution of the present invention is 0.3
Thin layers of less than μ, especially less than 0.2 μ are preferred.

The photosensitive material of the present invention: The silver halide emulsion layer and the coating solution therefor can be those commonly used in photosensitive materials for plate making. As the silver halide, silver chloride, silver chlorobromide, silver iodobromide, silver bromide, etc. can be used without particular limitation. Silver chloride or silver chloroiodobromide containing θ to 3 mol of iodide is preferred. There are no particular restrictions on the form, crystal habit, size, etc. of the silver halide grains, but grain sizes θ of 7 μm or less are preferred. Silver halide emulsions are made of gold compounds such as chloroauric acid salts, gold trifluoride, salts of precious metals such as rhodium and iridium, and sulfur adducts that react with silver salts to form silver sulfate defects. Sensitivity can be increased by using reducing substances such as stannous salts and amines without coarsening the particles.

Furthermore, the ends of precious metals such as rhodium and iridium, and ferrous antiquities such as red blood cells can be made to exist during the physical ripening of silver halide grains or during nucleation.

Photographic emulsions are spectral background ink using methine dyes and others.
And work it. These sensitizing dyes may be Bl, Vζ or a combination thereof, and combinations of sensitizing dyes are often used especially for the purpose of supersensitization. Along with the sensitizing dye, the emulsion may contain a dye that does not itself have a spectral sensitizing effect or a substance that does not actually absorb visible light and exhibits strong color sensitivity.

Useful sensitizing dyes, combinations of dyes exhibiting supersensitizing 4 and substances exhibiting supersensitizing are listed in Research Disclosure (l(e
search1) isclosurcl/76 fart, 17
6≠3 (Published in 7th year/λ month) 'i' is described in item 5 of page 23 (■).

Photographic emulsions contain many anti-fogging agents including V-human tffglyx, -mebru/, 3,3a, 7-thitraazain, 3-methylbenzothiazole, and/-noenyl-ohmercaptotetrazole. Compound mulberry compound J compound, mercury compound J, mercapto compound, etc., as well as JP-A-1999-10.2'A, TA θ-B, GO O-B, JP-A 3-
0-/9'%2de, *National patent 3゜g3θ, A3'i'>
It is possible to use the one described in 3-, which is commonly used in the rock world.

Actual performance 1i: i's feeling) Y two cases no rogenized milk; 111r
lji・'kofd, Nakafusuke;r(il, photo↓゛1: 1 of male improvement, etc.) and world + Iil activity 1! (:) 11; I can do it.

? Persimmon 1.4 Number-↓, Zabonin as a viscous agent, l[,
1 in the human world [...iA4i1-%, fulgylene oxide type, clintol type ~ which nonionic surfactant 1, carbon C1 hasulfone and 1 agent (for example, home country 1' allowed 3
, 4'/3-, Otsu≠ri symbol;1. :, 2] Kai 1111 active agent), phosphoric acid, 111r sapon ester 1 (, anionic surfactant +2+- agent that activates acidic groups such as acetic acid Nisder group, amino l#ton, aminosulfone alcohol), ci, amino Alcohol value 1 Jun father is both Nisdel phosphate, etc. +!
+i activators are preferably used.

The polyalgylene oxide compound used in the present invention is an alkylene oxide having 2 or more carbon atoms, fc is ethylene oxide, propylene-/, 2-oxide, butylene-
a polyalkylene oxide consisting of at least 10 units of ethylene oxide, preferably ethylene oxide; , a compound having at least / active hydrogen atoms such as a hequintole dicenter
It includes block copolymers of two or more polyalkylene oxides, i.e.,
As the aluminum oxide compound, specifically, polyalkylene glycol is used.

Polyalkylene glycol alkyl needle #HY3.

Borimalkyleng 11 call ary, ethers.

Polyalkylene glycol (alkylaryl) Nisdels.

Polyalkylene glycol esters.

Polyalkylene glycol biliary acid amide lees.

Polyalkylene glycolamines.

Horial Girengliconoshi Pu [-! Tsuku joint i■ combination.

Poly Real Kylene Glycol Craft etc. can be done in 111.

A specific example of the polyesterkylene oxide compound 4 which can be suitably used in the present invention is given as follows.

Polyalkylene oxide compound example 1, HO(CH2CH20)i+)-12C zH2s
O (Ken (2CH20) 15H3, CBi (17C) (=
C[(C)3H□60(CH2Cl-120)15H5
C engineering 1) (23C00 (Cf12CI420) BO11
6, C111123CON)1(CT12Cl12('
1) 1sH8(:□4N-129N(CH□)(Cl-
(□CH20) 2 Note 19, H (CI-(2cLI2Q)
a(CFICU20)b(CH2Cl20)cllCH
3 a+b+c250 b:a+c2/0:Lj system light halogenated jN milk wholesale 1 layer contains rice i'-El
Patent 3.

11, 1/, No. 911, ii. +3, g//,? /2 Gin, 3, //, Z. 2,,! ;1. No. g, 3, 32.
f, 2ft issue, 3.3-//. 7, June 2005, as described in the Japanese Patent Publication No. 533, etc. 2) Alkyl esters 1) Consisting of homo- or copolymers of esters, alkyl methacrylate, acrylic acid, chrycidyl acrylate, etc. Polymer latex is cut to size as a photographic material.
Contained for the purpose of improving '44, improving physical properties, etc./. I can do it.

1 Photosensitive condition of the present invention...Silver halogenide YL 11 so ('This is used as a hydrophilic ↑ 1 tofroid binder 7,
Although it is disadvantageous to use gelatin, other than J1 ~
IJ, Jvl (colloids can also be used.

For example, gelatin μ7sp i'k, gelatin and illit
．． Grafting with the I-affecting molecules of poly-,>-, alwomine, and cabin-based proteins; cellulose derivatives such as hydroxyethylcellulose, narboxymethylcellulose, cellulose sulfates, etc.; Polyvinyl alcohol partial acetal, poly11-/N-vinylpyrrolidone, bo1
1. Acrylic acid-polymethacrylic acid, polyacrylic acid +. A wide variety of aqueous polymers can be used, such as copolymers or copolymers of vinyl imidazole, vinyl pyrazole, etc.

Examples of gelatin treated with lime include λF treated gelatin and Bull. Soe, Sei. Photo, Japan
an.

] la/A, 30 white (i'i'AA) to kill ii 戊さf
l. 7vf fermented gelatin may be used, and gelatin hydrolyzed M products and enzymatically decomposed products may also be used.

The weight ratio of silver halide to hydrophilic colloid binder in the photosensitive silver halide emulsion layer of the present invention is preferably such that the weight ratio of hydrophilic colloid binder to iK halide is 2 or less. stomach.

In the present invention, there are seven photosensitive silver halide emulsion layers,
The structure is not limited to two layers or more.

Example (Jin 1t & Hikarube 1: Halogenated detective 11 breasts ffll
II"J is.21su・"i to b! .

1 halogenated plane/fort for 2ha/1 total, k47 when
i-.

"Loid binder" is 2 or less, and the upper layer) surface luminosity ￥LMl:I
=． It contains more hydrophilic colloid binder than I-4, which means it is more savage.

Also, the coating amount of silver halide is Ill/, 0-4, 0? per 1 square meter in terms of silver amount. ,4. +1 to/, 3~'l.

I like that it is C2 and L5.

The effect of force reduction processing 1+24 points --, #4ti+; becomes strong in 4'i when j is small, j:21.

The non-I samurai of the present invention, Kusei E>hsNikeki'P1 practice 1
It is 4 (-) from the aqueous colloid, the 1st layer of the 112' layer and the 1st layer of the middle 14).

It is known that [+'4+ clothes can be used].

Although it is preferable to use gelatin as the colloid, a hydrophilic colloid other than gelatin as described above may be used instead of gelatin.

Examples of gelatin include lime-treated Seratin 1〆1, acid-treated Gelatin, Bull-8oc, 9ci, and photo.

Described in Jaoan, A/lz, 301 (/9A Otsu)!
1,7ζ-treated gelatin may be used, and gelatin hydrolysates and enzymatically decomposed products may also be used.

In the invention (d), a matting agent can be added to the non-photosensitive upper layer to improve spray II and adhesion resistance. As a matting agent,
)1. /7A, 22~. 21 pages (15'7J'?11.
, z month) can be used, but in particular polymethyl methacrylate or carbon dioxide,
Particles of 101t (%/~μ) are preferred.

There is no particular limit to the amount of matting agent used, but it is usually 06θ! 9/
@2~0,. A range of 2 g/m2 is preferred.

The advantage of the present invention is that the haze that occurs when conventional matting agents are used can also be improved by providing layers with different degrees of curing in the non-photosensitive upper layer. Polymer latex may be included for the purpose of completely preventing reticulation that is likely to cause VC.

Examples of the polymer latex used include US Pat. No. 2,772. /Otsu Otsu No. 3,325゜2nd 2nd, 3rd. 'l//, 9//ri heather, 1.1113.3
//, 72 times the same? ,! 2ta, Otsu No. 20, research disk 1-jar (Re5earch1) iscro
sure) Magazine No. 16/Kuta 151' Tata/(/ritto July 0) etc.和、``Of course. Especially good L、Imono (
t: I', methyl acrylate, ethyl acrylate -+-
, butyl acrylate, methyl methacrylate 1, root, alkyl acrylate such as ethyl methacrylate, alkyl methacrylate 1 root alkyl acrylate, alkino [methacrylate 1 root and other vinyl [V combination, 8) 11] 11 Lu Shun,
A square-shaped combination t° with N-methylol acrylamide is formed.

The average size of the polymer latex used in the present invention is 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, θ,
2゛～O. /μ. Depending on the use of such polymer latex, reticulum/. - The occurrence of John is extremely ν
) can effectively stop 1571. Among the above-mentioned polymer latexes, latexes with a high glass transition point (T9) are preferred for further improving adhesive resistance.

Particularly preferred is one with a T2 of 2KN or more. For example, in addition to the hydrophilic materials of homovinyl polymers such as methyl methacrylate, ethyl methacrylate, and styrene, these vinyl polymers and other vinyl/F polymers, such as acrylic acid and N-
Particularly preferred are copolymers with methylol acrylamide and the like. The addition of Polymer-ytex 111 is due to the weight of the hydrophilic 4It' colloid in the layer. 5'~20
A ratio of 0, particularly a ratio of 10 to ioo is preferable.

Polymer latex may be added to the oxtail layer 11.

Next, specific examples of the polymer latex that can be used in the present invention will be shown, but the invention is not limited thereto.

1i'i if CH2-CI-1→0 C=QRnee CH3, -C2H5. -C4H9(,)f
(.

L-) C)-1a +CH2-C+.

C-ORney CH3, -C2H5, -C4) 1901 (
.

■、−≠ H3 ÷CH2~C+X+CH2-needle H.

I C=OC=0 1 0CH30H (x/y=ri3/7) L-Evening CI-+3CHa 1 1fcI-4z-C x4cH2-C-)y1 C-OC=0 1 0CH30F■ (X/y-ta 3/7) L-g CI-13CH3 1 -(-C112-C-)x(-CH2-C+y1 c=ocoO 111 0CI-430C1]2CH20C □ +C-CH29n Ward (X/Y-43/7)CH3 L-”y CH3C1-43 1 +CH2-C+x+CH2C→,.

1 C=OC=0 1) Su (x/y=ri3/7) Ha\ -1 1 Hehe1 Hehe1 --- 1- Synthesis example Polymer latex (methyl methacrylate gas inlet tube, rapid flow cooler, 1 with oyster sweet dressing (b)
Distilled 7J (g00m?) in a three-neck flask with 000mQ.
≠, 2g? Emulsify and separate 30.0 ml of methyl methacrylate into a solution of sodium lauryl,
Amg was added to the mixture. Maintaining the internal temperature at 2θ0C, dissolve O1 ≠ / 1 potassium peroxide in 1.20 mρ distilled water, and then dissolve 0. /Otsu? After dissolving 1.2N aqueous ammonia 2. 'OmQ was added as the starting point of polymerization 1). -2%! - After fl,
Furthermore, 1B-Aiguchi J-Jishi 1, which was the same as above, was added and 1-boost polymerization was carried out at 2 hours. After cooling, filter through thin plastic paper, depth/ta, 5'wt, grain size Oθ, pH 1,/3
The protein base is made of methacrylic acid polymer latex.

Generally, the above-mentioned Bollmer latex can be synthesized by such a synthesis example.

The non-photosensitive upper part 1ζ contains a hydrophilic material such as 8'+1, a colloidal binder (e.g. gelatin), a matte paste 1,
(1) In addition to Maratex, known additives such as interfacial oil additives, antistatic agents, slip agents, colloidal silica, and zestylene moltenizers can be included.

The non-photosensitive upper layer of the present invention is dried so that the dry thickness of the entire layer is 0.3 to 3 μ, especially KQ, and 7 to 7 μ.
55 preferred.

In the curing of the photosensitive silver halide emulsion layer and the non-photosensitive -4 two-part layer of the present invention, it is preferable to use a diffusible low-molecular-weight hardener. It may also diffuse into the thin layer formed by the compound and harden that thin layer, but this thin layer is selectively cured because it is cured by both the low molecular weight curing agent and the diffusion-resistant polymer hardening agent. A good hardening is achieved].

These diffusible low-molecular curing agents and I-6) organic or inorganic curing agents (alone or in combination), typical examples include mucochlor, formaldehyde, and Methylolmelamine-glyoxal, yu, 3
-dihydroxy-154t-dioxane, 2,3-dihydroxy-! -Methyl~/≠-Aldehyde compounds such as dioxane-succinic alhyde and glutaraldehyde; divinylsulfone, methylene bismaleimide, /, 3
．． j-Triacryloyl-hexahydro-8-triazine, l.

3,! -) IJ vinylsulfonyl-hexahydro-8-
triazine, his(vinylsulfonylmethyl)ether, i, s-bis(vinylsulfonyl)-pro/ξnor-2, bis(α-vinylsulfonylacetamido)ethane, l, 2-bis(vinylsulfonyl)ethane, l, l
an active vinyl compound such as '-bis(vinylsulfonyl)methane.

active halogen compounds such as U-cyclo-2-hydroxy-5-triazine; ethyleneimine compounds such as 2,4t, l, -) lyethylene-imino-3-triazine; and other gelatin hardeners well known in the art. I can hold a meeting.

When a diffusive hardener is used, it can be added to the non-photosensitive upper layer or to the emulsion layer.

The preferred layer structure of the photosensitive phase for plate making produced by the production method of the present invention includes, in order of support strength 1 (emulsion layer, non-photosensitive upper layer, and thin gelatin layer containing a diffusion-resistant polymeric HfL agent; Body 7) Emulsion layer, non-photosensitive layer, soil layer, non-photosensitive second upper layer, gelatin thin layer containing polymer hardener, support ηλ, etc. 111, emulsion layer, non-photosensitive second layer a top layer, a thin layer of gelatin containing a polymeric hardener and a non-photosensitive second layer;
The upper class; etc. are proudly protected. In any of the layer configurations, it is not a problem to add an undercoat layer between the emulsion layer and the support.

As the support for the photosensitive material for plate making of the present invention, polyester films such as polyethylene terephthalate films and cellulose ester films such as cellulose triacetate films are preferably used.

According to the manufacturing method of the present invention, there is no limit to the developing method for the photosensitive material for plate making, and any method that is generally used for processing photosensitive materials for plate making can be used. . The processing temperature may be selected between normal/J"C and jθ0C, and may be a low temperature of 1/J"C or a temperature exceeding jO"C.

The developer can include any known developer agent. Examples of developing agents include dihydroxybenzenes (e.g. hydroquinone), 3-pyrazolidone (I (e.g. /-phenyl-3-pyrazolidone), aminephenol'JA1 (e.g. N-methyl-p-aminephenol), /-phenyl-3 -pyrazoline sum, ascorbine r
body, and rice Flt, lspecial 7 (-ta.

0 Otsu 7. 7, 2, 3 of tj recorded in No. 72. The gutetrahydroquinoline ring and the indium 5q+ can be used alone or in combination with a heterocyclic compound such as ``z0'' as shown in ``kL2''. Quotient 1. In addition to the four liquids, there are also known preservatives, alkaline 1, and pH control! 1ffi Rei 1, anti-cazzling agent, etc. (as required)'￥
1 (promoting agent 1, interfacial oil deposit,
Before defoaming 11, (,'li water/primary formation! 1, (,・zu1
Island - Made by: 5. You may also call f-horoscope 4゛toy\j-lii 11.

To the invention! kl-t/This is the so-called squirrel liquid that is used for pruning, but this (f basically (yumi ortho fork/) is radihydroxybenzene, alkali chlorine 1, and free !114 Consists of porrate, #II, π acid ions, 2-sulfate, etc. Ortho-d as a developing agent
-ξRadihydroxybenzene (full selection from those well known in the field of photocopying) can be selected. Specific examples thereof include hydroquinone, chlorohydroquinone, bromohydroquinone, inpropylhydroquinone, toluhydroquinone, methylhydroquinone, λ,3-dichlorohydroquinone, co,terdimethylhydroquinone, and the like.

Among these, hydroquinone is particularly practical.

These current 1 landlord raids are used alone, and fathers are used in combination.

Addition of main developer part) A is developer/l/2/θQ? , preferably at θ2 in the evening. The acid ion budfur is effective in keeping the amount of IW in the developing solution almost constant, and it is effective for keeping the amount of IW in the developer solution almost constant. products such as acetone and sodium hydrogen oxide adducts, ketone-nitrous acid water, alkali additives, and carbonyl-nitrous acid-amine combination products such as sodium-bis(2-hydroxyethyl)amine methanesulfonate. I can be invited. The amount of curved sulfate ion buffer used is 3 to 3 per image/l.
/30? It is.

To the liquid solution used in the present invention, an alkali salt of succinic acid such as sodium sulfate can be added to control and eliminate the release of free hyponythate ions. The addition Lt of the E1 decorate salt is the current A solution/condensed by 9, and the lower value is -Tj(ν, and in particular, 32 or less is preferable, but of course it is less than 2 and 6
You don't have to.

For many purposes, it is preferable to contain alkali rhodanide (sodium 9ide, potassium bromide, 7'11' and 1.4') as the developing subsurface 4I. ,of·
Rhodanized alkali (0.0/~10 per 1x solution/l)
2, preferably 0. It is preferable to add /~tata.

It’s now 1 summer! The pH in the solution is 9.1/J, above (especially pH'?,
7~//,j), alkaline dissolution is added.

II ■ The usual appearance 1 SVC is carbonated as an alkali 11) 1.1) Rum or potassium carbonate is used 2, and there are 4 different types of dropping power (,).

As the standard solution, one having a composition commonly used in V) can be used.

1 is Chioikan IY (ff1f, i<,
In addition to thiocyanate, Jl is known to be effective as an aging agent.
An organic small-face compound ':@ can be used.

The fixing solution may contain a water-bathable aluminum salt as the film agent 7. When forming a dye image, the one-forgery method can be applied.

Development processing methods include manual processing, raw processing, and
Self! It may also be done using a map. Self q, θ present 1
There are no particular restrictions on the method of conveyance (roller conveyance, belt conveyance, etc.), and the method used in the industry (transfer type automatic development I) may be used. In addition, regarding the treatment liquid composition and the phenomenon method, U.S. Patents 3. =, same 3, /≠ri9,
No. 957, 3. /tat, /73gei, 3.224L,
3.5′ No. 3, same 3. Tough 3, 9A'7 etc. (jL
'l戊: Can be converted into IK-259 thoughts. 1. Halogenated photosensitive material for plate making of the present invention SFJ'i'l Award 111';
? 1. Regarding other 1. Hiro supports and processing methods, etc. (
For example, you can refer to Research Disclosure Magazine/7, Volume 22-2g, pages 22-2g (/77J', 72).

There is no particular control film in the reducing fluid used in the present invention, and for example, the one described in "The Theory of the Photographic Process" by Meese in Chapter iii is effective. Use it.

That is, the reducing components of permanganate, per(jlX salt, ferric salt, ferric salt, ceric salt, red blood salt, market romate tatami) are used alone or in combination, and Due to the 8th tragedy, non-standard acids such as high-value acids, electric liquids made of alcohol, or (
size,・show [tll salt, egg salt, minced triacetic acid ψ,
Contains a force-reducing component such as Nipo W, a thiovalent salt, a rhodan salt, thiourea or its halogenated conductor, and if necessary, a free acid such as ipirbutyrate. i f1
2-force liquid is not used).

The present invention (t) must be further described in the publication No. 48 of
Compounds with mercapto groups such as self-reduction),%
I can force it.

The temperature, temperature, temperature, temperature, temperature, etc. used in the d-treatment of the present invention, the treatment conditions (temperature, temperature, temperature, etc. > ri) are not limited and can be determined by the voter as appropriate.

See below for information on reducing fluid and weight reduction methods! You can refer to the notes on the tiles.

Tokukai Shota/-7 Hiro 0733, same Tanou Otsu and t/ri, same!
;3-/4t5'0/, same, 5'≠-//923 Otsu, same, 5'μ-//';'237, same 5 ter 2-μ5, same ta 2-ha day 11 same tater/ 7/, 23.1t, 1tata 7
the law of nature! 1I-4'-, tt-, r/311. g It's sweet, the fruit of magical power manipulation F, as for ears, it's the best in Japan! 11 rain 11
4 Kakugyo, Kumizu, 5j, (-Hiroshi [Retouching Techniques Handbook])
/7go) can be changed to 43 guns 2).

The present invention will be specifically explained below, leaving aside the details of the bow.

Example 1 A coating solution having the following formulation was coated on a polyethylene prephthalate film support with an undercoat layer using a multi-layer simultaneous multi-layer coating method according to the specifications in Table 47, and a test layer was exploded.

KO mole related chloride world, /ri, j mole related bromide 31X1,
and 0. Halogenated silver iodide made of silver iodide was sensitized with gold and sulfur using the Ko method and then dried. The gelatin contained in the Ushidako emulsion is manufactured by No Rodan Kasha 1.
To? -1 and lI-t@iFt%. This breast AI
JK3-carboxymethyl-,j(-2-(3-ethylthiazolinidene)ethylidene) rhodanine (spectral enhancement I
Injury), Guhydroxy-/, 3.3a.

7-thitrazaindene (stable chi(), containing 50 ethylene oxide molecules) v phenyl ether 9 fK4μj-J'33/rA construction j4zlll prescription 3 1-J゛ polymer latex Bis(sulfonylace(・1mido)ethane) (a low-molecular-j・111-forming agent) was added to the gelatin in an amount of 2, Aip, and Jil-% based on the total dry gelatin of each sample. It was made into the first round of A2Qp commercial liquid.

[Gelatin/9//00CCH20 Next, a negative gray contact screen (1 θ line/inch) for forming f + ij point image points on the image was closely attached to the sample by the following method, and a step 71 was formed on the sample. is 0
．． / was exposed to facing tungsten light for 70 seconds at 1 to 1 to 7. This sample was subjected to high-temperature rapid development for 1 to 4 p at 3 to 0C using the following developer.
1] Constant f path, water washing, and 1〆λ;

Developer solution Sodium carbonate (/water salt) //? Potassium 9ide 39 Hydroquinone-232 /-phenyl-3-pyrazolidone 0. ≠? +, Value: Sodium acid 472 Potassium hydroxide // 2 Add water /l The obtained halftone strips were added to the following cerium thread 4. Soaked in Tamarishin (200C) and washed with water.

Reducer solution Ceric sulfate 2jtjj Concentrated sulfuric acid 3og Add water/l Measure the changes in the halftone dot area and the density per halftone dot of the 1CM 4-point strips obtained in this way using a microdensitometer. The halftone dot area was measured using a dot furnace and the density of each point was reduced by 2°! Determine the halftone dot area when 5 and find the difference between the two to obtain the reduction force 1] value. Furthermore, the reduction time required to reach the concentration ko and j was determined. The results obtained are shown in Table 2. Furthermore, the melting time of the non-photosensitive upper layer and the photosensitive silver halide emulsion layer was measured using the method KL described above.

The results obtained are shown in Table 2. Further, the haze degree of each sample after treatment was determined to be 1jl11, and the results are also listed in Table 2.

In addition, in the present invention, haze refers to the JIS standard (JIS
Kt7t≠)K is a specified characteristic value, and this haze is the ratio (correlation) of scattered light/transmitted light to total light transmittance.
The lower the value, the greater the transparency of the coating film.

In addition, the coating solution to which a polymeric acidifying agent was added was kept at a temperature of ≠0°C and stored while stirring uniformly, and the change in viscosity was measured over time using a YB type viscometer (manufactured by Tokyo Keiki). The time required for the viscosity to reach double the initial viscosity was obtained.

In terms of continuous production, it is preferable that this value is as large as possible.

When this tsukuda becomes smaller, there is a tendency for the same amount of insoluble force3 to be generated due to the reaction between the hardening agent and gelatin during coating, and the degree of improvement in viscosity increase over time can be determined based on the magnitude of this value. , can be done.

The results obtained are shown in Table 2.

/ 1)ゝ4. ! ;,)':l,'・, 1,,l,,j,----,,,-,-L-7,:3-
7, 1.1, 14, Mamoru f, j7il: □ A:9-f: □ :: :/, '31i, Kak□,? ,〃(! (A/11 :, :1 Otsu □ta δ'''33) (,) Words change g, o envy 1 200- From Table 2, for the sample inspection number /, the incense name 2-Yu is It can be seen that the melting time of the non-photosensitive upper layer is changed to be longer than that of the halogenated side emulsion layer. In both cases, the force reduction performance is immediately t'' and P, but the crystal molecular hardness (trial t with a large amount of arsenic and narrowed fabric) has a larger riA force width and force reduction time, and is It shows the ability of carpet 1 no 1 [2
ing. However, regarding the viscosity increase over time, the sample
, i17 issue! As can be seen from the comparison between Sample No. 3 and Sample No. 3, the viscosity increase over time of Sample No. Occurrence ↓ myself, and I think it was the end of the fall.

For this fV, the sample number of the present invention and t! d,
It shows superior performance in terms of production, improving the force reduction performance without causing any rye points, and also exhibiting good viscosity increasing properties over time.

Samples from 1 to 1 were subjected to the above-mentioned and Il-+1- development treatments.1. The degree of occurrence of Qrl, Rii X, Noshisen 4, and Ni-resion was observed for each sample. Even if it is, reticulation does not occur.

The haze degree is lower for Sample 2 than for Sample 2.
The transparency of sample S is lower than that of sample 3, and it is clear that the sample of the present invention has superior coating film transparency.
).

Sample 2xr'C, ts after coating was stored in an RIJ atmosphere and the film quality (swelling, MT) sensitometry was continuously examined over time after 3 days, and it was found that sample 2xr'C, ts and the sample of the present invention were ≠ , there was no significant difference in the evening.

Patent Applicant: Fuji Photo Film Co., Ltd. Showa, July 1st, 2015, Director General of the Patent Office 1, Indication of Case, 1955 Patent Application No. 2 I'i'29 2,
Name of the invention Manufacturing method for plate-making / Rodin Silver Fide Photography Guko Material 3 Person making the amendment Relationship to the case Patent applicant's office 210 Nakanuma, Minamiashigara City, Kanagawa Prefecture Name (520) Fuji Photo Film Co., Ltd. 4゜Engraving of the specification subject to amendment 5 and the statement of contents of amendment i (no change in content)

Claims (3)

[Claims] (1) On a support, at least seven photosensitive silver halide emulsion layers and a non-photosensitive upper layer consisting of a hydrophilic colloid layer are coated on top of the emulsion layers, and at the same time or during the coating. After that, a gelatin solution containing a diffusion-resistant polymeric curing agent in an amount sufficient to make the melting time of the layer formed by the gelatin solution longer than the melting time of the emulsion layer is added.
The coating amount of gelatin on the above non-photosensitive upper layer is -0.03
1. A method for producing a silver halide photographic material for one-layer plate making with improved suitability for reduction processing, characterized in that coating is performed so that the film density is 7.2 to 0, J'g/m2. (2) Claim (1) characterized in that a diffusible low-molecular curing agent is contained in the coating solution for the photosensitive silver halide emulsion layer or the coating solution for the non-photosensitive upper layer.
A method for producing a silver halide photosensitive material for plate making as described in Section 1. (3) Scope t1 of the patent t^, characterized in that the coating liquid for the non-photosensitive upper layer contains a matting agent.
A method for producing a silver halide photosensitive material for plate making according to item + or item (2).