JPS61231550A - Image forming method - Google Patents

Abstract

PURPOSE:To obtain a high quality image with reduced unevenness in image density while applying a scanning exposure system by specifying the gamma value of a silver halide photographic sensitive material after development. CONSTITUTION:A silver halide photographic sensitive material is directly exposed to light reflected from an original with an optical means by a scanning system, and the exposed sensitive material is developed and processed with a processing soln. having fixing capacity to form a visible image corresponding to the original. In this image forming method, the gamma value of the silver halide photographic sensitive material after development is regulated to 0.8-1.7. In order to regulate the gamma value, silver halide emulsions having higher and lower sensitivities are mixed and applied to a support or applied separately in two or more layers. The sensitivity difference between the silver halide emulsions having higher and lower sensitivities depends on the gamma values of silver halides used, but generally the higher sensitivity is about 3-10 times as high as the lower sensitivity. The gamma value may be regulated by properly changing the pH or temp. of a developing soln. used, the development time or the kind of a developing agent, a development retarder or a development accelerator used.

Description

[Detailed description of the invention]

[Industrial Application Field] The present invention involves directly exposing an original image containing image information such as characters and pictures onto a silver halide photographic light-sensitive material using an optical means using a scanning method, and then processing it with development processing and fixing ability. The present invention relates to a method of forming a copied image of an original image by forming a developed image corresponding to the original image by processing with a liquid. [Background of the Invention WA] Many methods and devices for obtaining duplicate images (copies) of documents, drawings, etc. have been proposed and put into practical use. Typical examples include electrophotographic copying devices and copying devices using silver halide photosensitive materials. In particular, in electrophotographic copying machines and the like, the scanning exposure method is widely used because it is easy to create a variable magnification structure or the structure of the exposure section can be made compact. In this method, exposure is performed while continuously moving a slit of a certain width, but when this method is applied to a copying machine that uses silver halide photographic light-sensitive materials, the density of the image may vary depending on the type of light-sensitive material, etc. There were cases where this occurred. On the other hand, in the full exposure method, almost no density unevenness in the image due to the type of sensitive material is observed. The inventors conducted various studies to solve this problem, and it became clear that the cause was exposure unevenness due to fluctuations in the brightness of the light source illuminating the original image, mechanical fluctuations during movement of the scanning system, etc. Ta. In order to solve these problems, measures such as selecting a light source with no fluctuation in brightness and improving the movement accuracy of the scanning system can be considered, but on the other hand, there arises the disadvantage that the cost increases significantly. [Objective of the Invention 1] In view of the above-mentioned conventional problem, the present invention reduces image 11 degree unevenness by an inexpensive means while employing a scanning exposure method.
An object of the present invention is to provide an image forming method that allows high quality images to be obtained. [Structure of the Invention] The above-mentioned object of the present invention is to directly expose an original image to a silver halide photographic light-sensitive material using an optical means using a scanning method, and then process the original image with a processing liquid having development processing and fixing ability. In the ms forming method for forming a developed image corresponding to , this is achieved by adjusting the gamma value of the silver halide photographic material after the development process to 0.8 to 1.7. [Specific Structure of the Invention] In the present invention, an original image is directly exposed to a silver halide photographic material Fl (hereinafter simply referred to as a silver halide photographic material) using an optical means using a scanning method. Here, the original image is a book, printed matter, etc. that contains image information such as characters, figures, pictures, etc., and may be either color or black and white, but the present invention is particularly effective when obtaining a color image. be done. This original image is illuminated by a light source with a constant slit width while moving continuously at a constant scanning speed, and the reflected light from the original image, that is, the optical image, is passed through an optical system such as a reflecting mirror and lens to a halogen. Direct slit exposure to silver oxide photographic material. Therefore, it is different from a method, such as a facsimile, in which optical information is converted into an electrical signal, and the electrical signal is converted back into optical information to expose the recording medium. Further, the present invention is particularly effective when the silver halide photographic material is exposed to light while moving in synchronization with the scanning movement of an optical means, such as a light source. In this configuration, unlike the case where the entire surface of the photosensitive material is exposed to light while remaining flat and stationary, it is necessary to have enough space to keep the entire surface of the photosensitive material flat and still, and to maintain the flatness of the photosensitive material. Since no equipment or the like is required for heightening, the space of the exposure section can be made extremely compact. Further, as a means for synchronizing, any known electrical or mechanical means can be applied. Furthermore, the scanning method of the present invention is applied not only when an optical means scans an original image at a constant speed, but also when the optical means is fixed and the original image is moved at a constant speed with respect to the optical means. included in the method. Furthermore, in the present invention, the scanning movement of the optical means includes not only the scanning movement when the optical means moves relative to a stationary original image, but also the scanning movement when the original image moves at a constant speed relative to the fixed optical means. It also includes scanning movement when scanning is performed while moving. In addition, magnification can be easily changed by changing the relative positions of the reflecting mirror and lens and changing the ratio of the optical path length from the original screen to the lens to the optical path length from the lens to the surface of the silver halide photographic material. I can do it. In other words, it is possible to form not only an image at the same size as the original image, but also an enlarged or reduced image. In this variable magnification mechanism, a zoom lens can be particularly preferably used in addition to the above-mentioned lens. Furthermore, a light-converging conductor (for example, SELFOC lens (trade name) is commercially available) can also be preferably used as the lens. Use of this light-converging conductor makes it possible to particularly reduce the number of reflecting mirrors, which is effective for downsizing. Further, instead of using the optical system such as the above-mentioned reflecting mirror and lens, an optical fiber can also be used. The advantages of using optical fibers are that the exposure position on the silver halide photographic material can be relatively freely controlled and that it is easy to realize compactness. The gamma value of the silver halide photographic material used in the present invention after current processing is defined as follows. That is, a wedge whose density is changed stepwise is used as an original image, and the original image is passed through an exposure system and subjected to appropriate exposure so that low to high lrx can be reproduced on the photosensitive material, and then developed. The obtained density is expressed on a characteristic curve showing the density/exposure relationship in the same manner as in the sensitometric evaluation, and on this characteristic curve, the minimum density (Fog) + 0.2 density point D1 and the minimum density (Foo) are The average gradation connecting the +1.2 density point D2 is defined as the gamma value in the present invention [Figure 1 (a),
(b)]. In the mN method for silver halide photographic materials whose gamma value after development is the gamma value of the present invention, for example, high-sensitivity and low-sensitivity silver halide emulsions are mixed or divided into two or more layers and then prepared on a support. Apply on top. The sensitivity difference between high-speed and low-speed silver halide emulsions varies depending on the gamma value of the silver halide used, but is generally 3 to 10.
It's double that. If necessary, to further improve the linearity of the characteristic curve, three types of silver halide emulsions (
or three layers). In the case of multilayer color light-sensitive materials, silver halide emulsions sensitive to blue, green, and red light are used. The gamma value can also be changed by appropriately changing the pH, temperature, time, developing agent, development inhibitor, development accelerator, etc. of the developer used. The smaller the gamma value, the more noticeable density unevenness will be (but if it is too small, the contrast of the copied image will be low and the image quality will deteriorate.On the other hand, if the gamma value is increased, the density unevenness will be emphasized, so the gamma value is 0). .8 to 1.7, preferably 1.
0 to 165 is appropriate. Suitable examples of the silver halide photographic material used in the present invention include internal latent image type silver halide photographic materials and reversal type silver halide photographic materials. Further, the support of the silver halide photographic material may be opaque or transparent. The internal latent image type silver halide emulsion used in the present invention is, for example, a so-called conversion type silver halide emulsion produced by the conversion method described in US Pat. No. 2,592,251, or US Pat. No. 3,206.316@ , 3, 31
Silver halide emulsions having internally chemically sensitized silver halide grains as described in U.S. Pat. Nos. 7,322 and 3,367, 178M, or U.S. Pat. and 3,531,291
Silver halide emulsions having silver halide grains incorporating polyvalent metal ions as described in US Pat. No. 3,161,276 or silver halide grains containing dopants as described in Silver halide emulsions whose grain surfaces are weakly chemically sensitized, or so-called core-shell silver halide emulsions produced by the lamination method described in JP-A-50-8524, JP-A-50-38525, and JP-A-53-2408. , and other JP-A-52-156614, JP-A No. 55-
Examples include silver halide emulsions described in No. 127549 and No. 57-79940. The internal latent image type silver halide used in the present invention is particularly preferably made of layered grains. Such silver halide can be produced in the same manner as ordinary laminated silver halide. For example, Japanese Patent Application Publication No. 1973-
No. 8524, No. 50-38525, No. 53-6022
No. 2, No. 55-1524 and U.S. Pat. No. 3,206.
As described in No. 313, silver chloride grains are formed by adding a bromide to convert them into silver bromide grains, and then a halide is further added to silver nitrate to form silver iodobromide grains, or silver iodobromide grains are formed with less excess halogen. Examples include a method in which silver chloride and silver bromide are sequentially laminated. Various photographic additives can be added to the internal latent image type silver halide emulsion used in the present invention. For example, optical sensitizers that can be used in the present invention include cyanines, merocyanines, trinuclear or tetranuclear merocyanines, trinuclear or tetranuclear cyanines, styryls, holoporacyanines, hemicyanines, Examples include xonols and hemioxonols. The internal latent image type silver halide emulsion used in the present invention can be supersensitized. Regarding the method of supersensitization, see, for example, "Review of the mechanism of supersensitization" Review of Supersensitization (RQ-vtev of 5upe)
rSenSitiZat+On) Photographic Science and Engineering (Photo
oraphic 5science and Enoi
neerlno) (PSE) Vol, 18, No. 44
18 (1974). The internal latent image type silver halide emulsion used in the present invention contains stabilizers that are commonly used in order to suppress the surface sensitivity as low as possible and to impart lower minimum density and more stable characteristics, such as compounds having an azaindene ring and mercapto A heterocyclic compound having a group can be contained. As the compound having an azaindene ring, for example, 4-hydroxy-6-methyl-1,3,3a,7-tetrazaindene is preferable. Among the heterocyclic compounds in which the mercapto group is a nitrogen-containing heterocyclic compound, a pyrazole ring, 1.
2.4-triazole ring, 1.2.3-triazole ring, 1.3.4-thiadiazole ring, 1.2.3-thiadiazole ring, 1.2.4-thiadiazole ring, 1,2゜5-thiadiazole ring, 1.2,3.4-tetrazole ring, pyridazine ring, 1.2.3-triazine ring, 1,2
．． 4-triazine ring, 1,3,5-triazine ring, etc., rings in which 2 to 31 [1] of these rings are condensed, such as triazolotriazole ring, diazaindene ring, triazaindene ring, tetrazaindene ring, pentazaindene ring, etc. Examples include a zainden ring, a phthalazinone ring, an indazole ring, and 1-phenyl-5-mercaptotetrazole is particularly preferred. In addition, humectants are used depending on the purpose; examples of mouth humectants include dihydroxyalkanes,
Furthermore, as a film property improver, for example, a copolymer of alkyl acrylate or alkyl methacrylate and acrylic acid or methacrylic acid, a styrene-maleic acid copolymer, a styrene-maleic anhydride half alkyl ester copolymer, etc. can be used by emulsion polymerization. The resulting water-dispersible particulate polymeric substances are suitable, and examples of coating aids include saponin, polyethylene glycol, lauryl ether, and the like. Other photographic additives include gelatin plasticizer, surfactant, ultraviolet absorber, DH
It is optional to use regulators, antioxidants, antistatic agents, binders, graininess improvers, dyes, mordants, brighteners, development rate regulators, matting agents, anti-irradiation dyes, and the like. Inside used for this invention! When the image-forming silver halide emulsion is used for color purposes, it is preferable to use a dye-forming coupler. Yellow dye-forming couplers are of the benzoylacetanilide type, vivaOylacetanilide type, or those in which the carbon atom at the coupling position is substituted with a so-called split-off group that can be separated during coupling.
Equivalent type yellow couplers and the like are useful. As the magenta dye-forming coupler, a 5-virazolone type, pyrazolotriazole type, pyrazolinobenzimidazole type, indasilone type, or a two-equivalent type magenta coupler having a split-off group is useful. In addition, cyan dye-forming couplers include phenolic,
Useful are naphthol type, vilazoquinazolone type, or two-equivalent type cyan couplers having a split-off group. These dye-forming couplers can be selected arbitrarily, and there are no particular limitations on how they are used, how much they are used, etc. Further, in order to prevent fading of the dye image due to short-wavelength actinic rays, ultraviolet absorbers can be used, such as thiazolidone, benzotriazole, acrylonitrile, benzophenone compounds, etc., especially Tinuvin PS, Tinuvin 120, Tinuvin 320, etc. , 326, 321, and 328 (all manufactured by Ciba Geigy) may be used alone or in combination. The internal latent image type silver halide photographic light-sensitive material used in the present invention can contain appropriate gelatin (including oxidized gelatin) and its derivatives depending on the purpose. Preferred gelatin derivatives include, for example, acylated gelatin, guanidylated gelatin, carbamylated gelatin,
Examples include cyanoethanolated gelatin and esterified gelatin. Further, in the internal IIM type silver halide photographic light-sensitive material used in the present invention, the hydrophilic colloid layer may contain other hydrophilic binders in addition to gelatin. This hydrophilic binder can be added to photographic constituent layers such as an emulsion layer, an intermediate layer, a protective layer, a filter layer, and a backing layer depending on the purpose. It is possible to contain agents, lubricants, etc. Further, the photographic constituent layers of the internal latent image type silver halide photographic light-sensitive material used in the present invention can be hardened with any suitable hardener. Preferred hardening agents include chromium salts, zirconium salts, aldehydes such as formaldehyde and mucohalogen acids, halotriazine hardeners, polyepoxy compounds, ethyleneimine hardeners, nyl sulfone hardeners, and acryloyl hardeners. Can be mentioned. In addition to the emulsion layer on the support, the internal latent image type silver halide photographic light-sensitive material used in the present invention may optionally include a filter layer, an intermediate layer, a protective layer, a subbing layer, a backing layer, and an antihalation layer. It is produced by coating various photographic constituent layers such as layers. Application methods include dip application, air doctor application,
Extrusion coating, slide hopper coating, curtain flow coating, etc. can be used. Any support can be used for the internal ms type silver halide photographic light-sensitive material used in the present invention, but typical supports include, for example, polyethylene terephthalate film, polycarbonate film, which has been undercoated as necessary. Polystyrene film, polypropylene film, cellulose acetate film, baryta paper, polyolefin laminated paper such as polyethylene, white 1lI
l! Examples include polyethylene terephthalate film in which No. 1 is kneaded. In the internal I-type silver halide photographic light-sensitive material used in the present invention, the main step of directly forming a positive image is to transfer the internal I-type silver halide photographic light-sensitive material, which has not been fogged in advance, to the image exposure bag fog. Generally, the surface is developed while being subjected to a slow or fogging process. The fogging treatment can be carried out by providing uniform exposure over the entire surface or by using a fogging agent. This 11-go, uniform exposure over the entire surface is a masterpiece! (a) It is preferable to immerse or moisten the exposed internal latent image type silver halide photographic light-sensitive material in a developer or other aqueous solution, and then uniformly expose the entire surface to light. The light source used here may be any light within the sensitive wavelength range of the internal latent image type silver halide photographic light-sensitive material, and high-intensity light such as flash light may be irradiated for a short period of time, or weak light may be used. Light may be irradiated for a long time. The time for uniform exposure over the entire surface can be varied over a wide range depending on the internal latent image type silver halide photographic light-sensitive material, the processing conditions, the type of light source used, etc. so as to ultimately obtain the best positive image. Further, a wide variety of compounds can be used as the above-mentioned fogging agent, and this fogging agent only needs to be present during the development process, for example, in an internal latent image type silver halide photographic material such as a silver halide emulsion layer, or Although it may be contained in a developing solution or a processing solution prior to development, it is preferably contained in an internal latent image type silver halide photographic light-sensitive material (particularly preferably in a silver halide emulsion layer). The amount used can vary widely depending on the purpose, and the preferred amount is 1 to 1,500 eg per mole of silver halide, particularly preferably 10
~1000 Peng 9. Further, when added to a processing liquid such as a phenomenon liquid, the preferable addition amount is 0.01 to 5 g/J2, particularly preferably 0.08 to 0.159 g/J2. Such fogging agents include, for example, U.S. Pat. No. 2,563,7
No. 85, 2,588. 82, or the hydrazide or human elazone compounds described in U.S. Pat. No. 3,227,552; and U.S. Pat. No. 3,615,615 and U.S. Pat.
No. 70, No. 3,719,494, No. 3,734,73
No. 8 and 3,759. '1) Heterocyclic quaternary nitrogen compounds described in US Pat. No. 4,030,9, etc.
Examples include 7-sylhydrazinophenylene and ruthioureas described in No. 25. Further, these fogging agents can also be used in combination. For example, research disclosure
D1closure) No. 15162 describes the use of a non-adsorption type fogging agent in combination with an adsorption type fogging agent, which can also be applied to the present invention. Specific examples of useful fogging agents include hydrazine hydrochloride,
Phenylhydrazine hydrochloride, 4-methylphenylhydrazine hydrochloride, 1-formyl-2-(4-methylphenyl)hydrazine, 1-acetyl-2-phenylhydrazine, 1-acetyl-2-(4-7cetamidophenyl) ) hydrazine, 1-methylsulfonyl-2-phenylhydrazine, 1-benzoyl-2-phenylhydrazine, 1
Examples thereof include hydrazine compounds such as -methylsulfonyl-2-(3-7enylsulfonamidophenyl)hydrazine and formaldehydophenylhydrazine. After image exposure, the internal latent image type silver halide photographic light-sensitive material used in the present invention forms a positive image directly by exposing the entire surface to light or developing it in the presence of a fogging agent. Any development method may be employed as the processing method, preferably a surface development method. This surface development processing method means processing with a developer substantially free of silver halide solvent. In the present invention, a positive image (developed image) corresponding to the original image is formed by subjecting the exposed silver halide photographic material to development and treatment with a processing solution that determines the fixing ability. The above-mentioned development processing includes not only black-and-white development processing and color development processing, but also a combination of black-and-white development and color development such as in reversal color processing. It also includes full-surface exposure or development in the presence of a fogging agent, such as in the processing of internal latent image type silver halide photographic materials. The black-and-white developer used in the development process is the so-called black-and-white first developer used in the processing of color photographic light-sensitive materials, or the black-and-white developer used in the processing of black-and-white photographic light-sensitive materials. Various well-known additives can be included. Typical additives include developing agents such as 1-phenyl-3-pyrazolidone, metol and hydroquinone, preservatives such as nitrous salts, accelerators consisting of alkalis such as sodium hydroxide, sodium carbonate, potassium carbonate, etc. Potassium bromide, inorganic or organic inhibitors such as 2-methylbenzimidazole and methylbenzthiazole, water softeners such as borisonic acid salts, and surface overdevelopment inhibitors consisting of trace amounts of iodides and mercapto compounds. etc. can be given. The first aromatic amino color developer used in the color development process of the present invention includes known ones that are widely used in various color photographic processes. These developers include aminophenol and p-phenylenediamine derivatives. Since these compounds are more stable in the free state, they are generally used in the form of salts, such as salts or sulfates. These compounds are generally used in a concentration of about 0.1 g to about 30 g per color developer solution, more preferably about 1 g to about 15 g per color developer solution 1. Examples of the amine phenol developer include 0-aminophenol, p-aminophenol, 5-amino-2-
Included are oxy-toluene, 2-amino-3-oxy-toluene, 2-oxy-3-amino-1,4-dimethyl-benzene, and the like. A particularly useful primary aromatic amino color developer is N. It is an N-dialkyl-p-phenylenediamine compound, and the alkyl group and phenyl group may be substituted or unsubstituted. Among them, particularly useful compound examples include N,N-diethyl-p-phenylenediamine hydrochloride, N-methyl-p-phenylenediamine hydrochloride, N,N-dimethyl-〇-7enylenediamine salt um, 2 -Amino-5-(N-ethyl-N-dodecylamino)-toluene, N-ethyl-N-β-methanesulfonamidoethyl-3-methyl-4-aminoaniline sulfate, N-ethyl-N-β- Hydroxyethylaminoaniline, 4-amino-methyl-N, N-diethylaniline, 4-amino-N-k(2-methoxyethyl)-N
-ethyl-3-methylaniline-p-toluenesulfonate and the like. In addition to the first aromatic amine color developer, the alkaline color developer used in the present invention further contains various components normally added to color developers, such as sodium hydroxide, sodium carbonate, and potassium carbonate. It may optionally contain alkaline agents such as alkali metal bisulfites, alkali metal thiocyanates, alkali metal halides, benzyl alcohol, water softeners, thickening agents, and the like. The pH value of this color developer is usually 7 or higher, most commonly about 10 to about 13. The processing solution having fixing ability in the present invention is a processing solution containing a soluble complexing agent that is solubilized as a silver halide complex salt, and includes not only a general fixing solution but also a bleach-fixing solution, a -bath current fixing solution, - Bath development bleach-fix solutions are also included, but bleach-fix solutions are preferred. Soluble complexing agents include, for example, thiosulfates such as potassium thiolaS, sodium thiosulfate, ammonium thiosulfate, thiocyanates such as potassium thiocyanate, sodium thiocyanate, ammonium thiocyanate, or thioureas, thioethers, Typical examples include bromide and iodide, but the inclusion of thiosulfate in particular improves the stability of dye images over time, chemical stability, and ability to form soluble complexes with silver halide. desirable. After color development processing, processing is performed with a processing liquid having fixing ability. In color processing, if the processing liquid having fixing ability is a fixing liquid, bleaching processing is performed before that. A metal complex salt of an organic acid is used as a bleaching agent in the bleach solution or bleach-fix solution used in the bleaching process, and the metal complex salt oxidizes metallic silver produced by development and converts it into silver halide. It has the effect of coloring the uncolored part of the coloring agent, and its structure is an aminopolycarboxylic acid, Il, citric acid, etc. Coordinated with metal ions such as iron, cobalt, and copper. The most preferred organic acids used to form such metal N salts of organic acids include polycarboxylic acids and aminopolycarboxylic acids. These polycarboxylic acids or aminopolycarboxylic acids may be alkali metal salts, ammonium salts or water-soluble amine salts. Specific representative examples of these include the following. [1] Ethylenediaminetetraacetic acid [2] Diethylenetriaminepentaacetic acid [3] Ethylenediamine-N-(β-oxyethyl)-N, N', N
' -Triacetic acid [4] Polypylenediaminetetraacetic acid [5] Nitrilotriacetic acid [6] Cyclohexanediaminetetraacetic acid [7] Iminodiacetic acid [8] Dihydroxyethylglycincitric acid (or tartaric acid)

[9] Ethyl etherdiaminetetraacetic acid [10] Glycol etherdiaminetetraacetic acid [11] Ethylenediaminetetrabrobionic acid [12] Phenylenediaminetetraacetic acid [13J ethylenediaminetetraacetic acid disodium salt [14] Ethylenediaminetetraacetic acid tetra(trimethylammonium) ) salt [15J ethylenediaminetetraacetic acid tetrasodium salt [16] diethylenetriaminepentaacetic acid pentasodium salt [17] ethylenediamine-N-(β-oxyethyl)
-N, N', N' -Sodium triacetate [18J Sodium propylene diamine tetraacetate [19J Sodium nitrilotriacetate] [20] Sodium cyclohexane diamine tetraacetate The bleaching solution used is a metal salt of an organic acid such as those mentioned above. In addition to containing the complex salt as a bleaching agent, it can also contain various additives. As additives, it is particularly desirable to include rehalogenating agents such as alkali halides or ammonium halides, such as potassium bromide, sodium bromide, sodium chloride, and ammonium bromide, metal salts, chelating agents, and the like. Also borate, II! pH buffering agents such as salts, acetates, carbonates, and phosphates, alkylamines, polyethylene oxides, and other substances known to be added to ordinary bleaching solutions can be appropriately added. Furthermore, the fixing solution and bleach-fixing solution contain sulfites such as ammonium sulfite, potassium sulfite, ammonium bisulfite, potassium bisulfite, sodium bisulfite, ammonium metabisulfite, potassium metabisulfite, sodium metabisulfite, and boric acid. It may contain one or more pHII agents consisting of various salts such as borax, sodium hydroxide, potassium hydroxide, sodium carbonate, potassium carbonate, sodium bicarbonate, potassium bicarbonate, acetic acid, sodium acetate, and ammonium hydroxide. can. When processing is carried out while replenishing the bleach-fix replenisher to the bleach-fix solution (bath), the bleach-fix solution (bath) may contain thiosulfate, thiocyanate, sulfite, etc. These salts may be added to the replenisher to replenish the processing solution (bath). In order to increase the activity of the bleach-fix solution, air or oxygen may be blown into the bleach-fix bath and the bleach-fix replenisher storage tank, if desired, or an appropriate oxidizing agent, such as peroxide, may be added. Hydrogen, bromate, persulfate, etc. may be added as appropriate. After treatment with a treatment liquid having fixing ability, a normal water washing treatment may be performed, but particularly in the present invention, it is preferable to conceal a stabilization treatment that does not substantially include a water washing step. In the present invention, stabilization treatment that does not substantially include a water rinsing step refers to stabilization treatment using a single tank or multiple tank countercurrent method immediately after treatment with a treatment liquid that has fixing ability. Treatment steps other than general washing, such as treatment, auxiliary washing, and known washing promotion baths, may be included. In the stabilization treatment step of the present invention, the method of bringing the stabilizing solution into contact with the silver halide photosensitive material is preferably by immersing the silver halide photographic material in a bath in the same way as with a general processing solution. It may be applied to the emulsion surface of the silver halide photographic material, both surfaces of the transport leader, and the transport belt using a synthetic ms cloth, or it may be sprayed onto the transport belt. The following will mainly explain the case where a stabilizing column using the immersion method is used. It is preferable that the stabilizing liquid contains a chelating agent having a chelate stability constant of 6 or more with respect to iron ions. Examples of the chelating agent having a chelate stability constant of 6 or more for iron ions include organic carboxylic acid chelating agents, organic phosphoric acid chelating agents, inorganic phosphoric acid chelating agents, polyhydroxy compounds, and the like. Note that the above-mentioned iron ion means ferric ion (Fe3+). Specific examples of chelating agents having a chelate stability constant of 6 or more with ferric ions include diethylenetriaminepentaacetic acid, nitrilotriacetic acid, 1-hydroxyethylidene-1,1-diphosphonic acid, and the like. The usage amount of the above chelating agent is 0.01 per 1 p of stabilizing solution.
-50g, preferably in the range of 0.05-20!3. Furthermore, preferred compounds to be added to the stabilizing solution include:
Examples include anti-spill agents, water-soluble metal salts, ammonium compounds, and the like. Examples of the above-mentioned anti-spill agents include isothiazoline-based, benzisothiazoline-based, thiapendazole-based, and the like. Furthermore, examples of metal salts include 3a, Ca, and Ce. Go, In, la, tvlr), Ni, Pb, 3n. These are metal salts of Zn, Ti, Zr, Ma, AJ, and Sr, and can be supplied as inorganic salts such as halides, hydroxides, sulfates, carbonates, phosphates, vinegar WMi, or water-soluble chelating agents. The amount used is 1 x 10' per stabilizing solution.
I x 10-' moles, preferably 4 x 1
0-cow to 2X10"-2 mole, more preferably Ha x
1o-4 to 1 x+O'-t-71/ (7) Range, a. . The amount of the above compound added for stabilization is 0.01 to sog, preferably 0.05 per 1β of stabilizing solution.
It is in the range of ~20Q. In addition to the above compounds, the stabilizing liquid contains optical brighteners, organic sulfur compounds, onium salts, and lit! Membrane agents, quaternary salts, polyethylene oxide derivatives, water droplet prevention agents such as siloxane rust conductors, pH of boric acid, citric acid, phosphoric acid, acetic acid, or sodium hydroxide, sodium acetate, potassium citrate, etc.
Adjustment agent 1 It is optional to add various additives to improve and extend the processing effect, such as organic solvents such as methanol, ethanol, and dimethyl sulfoxide, dispersants such as ethylene glycol and polyethylene glycol, and other color tone adjusting agents. be. The above compounds and other additives can be added to the stabilization tank as a concentrated liquid, or the above compounds and other additives may be added to the stabilizing liquid supplied to the stabilization tank and then stabilized. There are various methods, such as using it as a supply solution for the stabilizing solution, or adding it to the pre-bath of the stabilization treatment process and making it present in the stabilization tank by including it in the silver halide photographic material being processed. It may be added by such an addition method. As for the method of supplying the stabilizing liquid in the stabilization treatment step, when a multi-tank countercurrent system is used, it is preferable to supply the stabilizing liquid to the immersion bath and overflow from the previous bath. The pH value of the treated solution in the stable column is preferably in the range of pH 4 to 8. Furthermore, 11H can be adjusted using the pH1i adjuster described above. The treatment temperature during the stabilization treatment is, for example, 20°C to 50°C.
℃, preferably in the range of 25°C to 40°C. In addition, from the viewpoint of rapid processing, a short treatment time is preferable, but it is usually 20 seconds to 5 minutes, most preferably 30 seconds to 2 minutes. It is preferable that the treatment time of the latter stage tank is long. In the present invention, washing with water may not be necessary before and after the stabilization treatment, but the surface may be cleaned by rinsing with a small amount of water in a short period of time or with a sponge, stabilizing the image, and improving the surface properties of the silver halide photographic material. Providing a treatment tank for adjustment is optional. Examples of agents for stabilizing the image and adjusting the surface properties of the silver halide photographic material include activators such as formalin and its derivatives, siloxane derivatives, polyethylene oxide compounds, and quaternary salts. In the present invention, it is optional to provide additional processing steps in addition to the above processing steps. Furthermore, silver may be recovered by a known method not only from the above-mentioned stabilizing solution but also from a processing solution containing a soluble silver complex salt such as a fixing solution or a bleach-fixing solution. Further, if the above-mentioned stabilization treatment is carried out, a water washing process is substantially unnecessary, and therefore there is no need for piping equipment for water washing processing, and there is an advantage that the apparatus itself can be easily installed at any location. [Examples] Examples of the present invention will be described in detail below, but the present invention is not limited to these embodiments. Example-1 FIG. 2 is a schematic cross-sectional view showing an example of an image forming apparatus that implements the image forming method according to the present invention. The image forming apparatus main body 1 includes an image exposure section 3, a paper feed section 11, a conveyance section 13, a photo processing section 24, and a drying section 30. The image exposure section 3 includes a light source 4, a first reflective mirror 5, a second reflective mirror 6, a third reflective mirror 7, a lens 8, a fourth reflective mirror 9, and a fifth reflective mirror 10. The light source 4 is provided with a slit, and a light source with no uneven light distribution particularly in the axial direction is preferably used. In this embodiment, a rod-shaped halogen lamp (200 W) with a slit width of 10 gv is used, and a ground glass is provided on the light exit surface to eliminate uneven light distribution. An original image (not shown) placed on a transparent original platen glass 2 is exposed to slit light by a light source 4, and as the light source 4 scans, the reflected light from the original screen, that is, the optical image, is reflected by a first reflecting mirror 5, a first reflecting mirror 5, and a second reflecting mirror 5. A silver halide photograph moving in synchronization with the scanning movement of the light source 4 from the exposure opening 23 via the second reflecting mirror 6, the third reflecting mirror 7, the lens 8, the fourth reflecting mirror 9, and the fifth reflecting mirror 10. The photosensitive material 12 is sequentially exposed. In this way, a light image corresponding to the original image is exposed onto the silver halide photographic material 12. In addition, the first reflecting mirror 5, the second
The reflecting mirror 6 and the third reflecting mirror 7 move along with the scanning movement of the light source 4. Further, the lens 8, the fourth reflecting mirror 9, and the fifth reflecting mirror 10 are stationary during exposure, but when changing the magnification, in order to change the optical distance, they are moved to predetermined positions corresponding to the variable magnification prior to exposure. Moving. On the other hand, the silver halide photographic material 12 is formed into a roll and is housed in a dark box 12'. The silver halide photographic material 12 pulled out from the dark box 12' is conveyed within the conveying section 13 by a series of pressure-contact rotating roller pairs 14.14' to 21.21'. Incidentally, the silver halide photographic material 12, which has hitherto been in the form of a roll, is cut into a desired size by a cutting member 22 provided in the conveyance path. Therefore, after being cut, the silver halide photographic material 12 is conveyed in the form of a sheet. The cutting member 22 may be one in which the cutter blade cuts the silver halide photographic material 12 while moving in the width direction, or one in which the cutter blade descends horizontally with respect to the silver halide photographic material 12. Various materials may be used, such as those that cut the silver halide photographic material 12 at once, but there is no particular limitation as long as the material can cut the silver halide photographic material 12. Of course, the silver halide photographic material 12 may be in the form of a sheet instead of a roll. When a sheet-like material is used, the cutting member 22 may not be provided. The silver halide photographic material 12 thus cut into a sheet-like material is cut into a sheet at the exposure port 23 as described above. , is exposed to the light image of the original image while moving in synchronization with the scanning movement of the light source 4. In this embodiment, the silver halide photographic material 12 is cut before exposure, but it is possible to cut it after exposure. The exposed silver halide photographic material 12 is then sent to the photographic processing section 24.The exposed silver halide photographic material 1 is then sent to the photographic processing section 24.
2 is subjected to photographic processing to form a developed image corresponding to the original image. In this embodiment, the photographic processing section 24 is comprised of four processing tanks: a developing processing tank 25, a bleaching and fixing processing tank 26, and a stabilizing tank 27, 28. The stabilization tanks 27 and 28 are of a two-tank countercurrent type. Further, the light source 29 is for providing fog exposure during development processing when, for example, an internal N-image type silver halide photographic material is used as the silver halide photographic material 12. The exposed silver halide photographic material 12 is transferred to a photographic processing section 24
After being processed in each processing tank for a predetermined period of time, the material is sent to the drying section 30 to be dried, and then discharged to the outside of the apparatus. In the figure, 31 is a waste liquid storage section, and 32 is a replenishment liquid storage section. In this embodiment, there are five mirrors, but it is also possible to use three or one mirror, for example. In this way, the image exposure section 3 can be made more compact. The following tests were conducted using the image forming apparatus having the above configuration. Specifically, the silver halide photographic material 12 used in this example was prepared by the method shown below. Preparation of Margin Emulsion S Below, 2.0% inert gelatin solution 7501ρ was kept at 50°C.
While stirring, the following solutions A1 and B were simultaneously added and injected over 3 minutes. After aging for 25 minutes, excess salt was removed by precipitation and washing, followed by redispersion, and liquid C1 and liquid 01 were added. 1
Excess water-soluble salt was removed and a small amount of gelatin was added to disperse silver halide grains. Preparation of emulsion 750 dl of a 1.5% inert gelatin solution was kept at 60°C, and while stirring, solutions A2 and B were added simultaneously and injected over 15 minutes. After aging for 40 minutes, excess salt was removed by precipitation washing method, and then redispersed and Hypo 10Img was added.
Solution G2 and solution D2 were added. Excessive water-soluble salt was removed by straining for 10 minutes, and a small amount of gelatin was added to disperse the silver halide grains. Preparation of Emulsion M 750 ml of 2.0% inert gelatin solution. Keeping Q at 50°C, the following solutions A3 and B were added simultaneously with stirring, and injected over 5 minutes. After aging for 25 minutes, excess salt was removed by precipitation and washing, followed by redispersion, and liquid C1 and liquid 02 were added. Excessive water-soluble salt was removed for 10 minutes, and a small amount of gelatin was added to disperse the silver halide grains. Sensitizing dyes, couplers, etc. were added to these three emulsions as described below to prepare multilayer color light-sensitive materials. Red-sensitive emulsion layer (first layer) Sensitizing dyes [D-37,
[[)-47, stabilizer [T-11, [T-21], surfactant [S-2], further dibutyl phthalate, ethyl acetate, surfactant [S-2], 2゜5-dioctylhydroquinone and Cyan coupler [CC-13, [CG-23]
Protect dispersed coupler solution containing Gelatin is added and each emulsion is coated individually and at different mixing ratios so that the gamma value is 1.3 to 2.5. First intermediate layer (second layer) dioctyl phthalate 2.5-dioctylhydroquinone ultraviolet absorber Tinuvin 328 (manufactured by Ciba Geigy),
Prepare a gelatin solution containing a protect-dispersed solution containing surfactant [8-11] and apply Tinuvin at a coating amount of 0.15 CI/
Get used to painting it so that it becomes II. Green-sensitive emulsion layer (third layer) For emulsion S and emulsion M, sensitizing dye [0-2], stabilizer [T-1, [T-2], surfactant rs-2], and dibutyl phthalate, Ethyl acetate, 2゜5-dioctylhydroquinone, surfactant [S-1], magenta coupler [
A protect-dispersed coupler solution containing [MC-1] was added. Add gelatin and further add a hardening agent [H-1], and apply the emulsion so that the gamma value of the resulting emulsion changes. 2nd intermediate layer (4th layer) Same area as the 1st intermediate layer, coating amount of Tinuvin 328 0.2
Apply so that the ratio is g/a+'. Yellow filter 11 (5th layer) Yellow colloidal silver made by oxidation in an alkaline weak reducing agent (the weak reducing agent was removed by the noodle water washing method after neutralization), dioctyl phthalate, ethyl acetate, surfactant [S- 1], 2.5-dioctylhydroquinone liquid, surfactant [8-2] and hardener [H-13] are added and coated so that the colloidal silver coating amount is 0.150/I". Third intermediate Layer (6th layer) Same as the first intermediate layer.Blue-sensitive emulsion layer (7th layer) Emulsion, and sensitizing dye [D
-1], stabilizer [T-1], [T-3], surfactant [
S-2], further dibutyl phthalate, ethyl acetate, 2.
5-dioctylhydroquinone, surfactant [3-1]
and a protect-dispersed coupler solution containing yellow coupler [YC-1] was added. Add gelatin and further add hardening agent [+-1-1],
The resulting emulsion is coated singly or in combination so that the gamma value changes. Third intermediate Fa (8th M) Same formulation as the first intermediate layer, Tinuvin 328 coating amount 0.35
Apply so that the ratio is g/I2. Protective layer (9th layer) Colloidal silica, coating aid [8-2], hardening agent [H-
2], gelatin coating amount using a gelatin solution containing [H-3]: 1. 0a/ya". The first to ninth layers were coated on surface-treated polyethylene laminate paper using a simultaneous coating method and dried. The following margins (T-1) [T-2) ( T-3
) (S-11 (S-21 CHmuCH2=C0O-CH2CH-(CH2)!-CH35
OsNa CzHs, H-2) H-3] SO hole CH=C mountain C-11 (CC-2) (CHs) 1×20
Scanning exposure was carried out at a constant speed of 5 CIR/sec through a rectangular exposure slit (window) of C-. The exposure amount was adjusted so that the image density after photographic processing was 1.0, and the scanning speed was partially accelerated by 15% in order to observe changes in image density due to changes in scanning speed. As a comparison sample, one whose entire surface was uniformly exposed was also prepared. The exposure amount and photographic processing shown below were applied. Further, the green light density change ΔD due to the change in scanning speed was determined using a densitometer. The results are shown in Table-1. In the table, the emulsion composition of the multi-photosensitive layer is expressed in parts by weight. Processing process (Process l! Temperature and WA during processing) [1] Immersion (color developer) 38°C 8 seconds [2] Fog exposure 10 seconds at 1 lux [31 color development 311”C 2 minutes [4] Bleach fixing 35°C 60 seconds [5] Stabilization process
25-30℃ 1 minute 30 seconds [6] Drying
75-80"01 minute processing solution composition (color developer) Benzyl alcohol 10-ethylene glycol 15IN potassium sulfite 2.0g potassium bromide
1.5g sodium chloride
0.2g potassium carbonate 30
．． 0 (1 hydroxylamine sulfate 3.
0g polyphosphoric acid (TPPS) 2,50
3-Methyl-4-ami7-N-ethyl-N-(β-methanesulfonamidoethyl)-aniline sulfate 5.50 Fluorescent brightener (/1.4'-diaminostilbenzsulfone I!!
derivative) 1. OjJ potassium hydroxide
Add 2.0g water to make a total volume of 1λ, p
Adjust to H10,20. (l home sm> Ethylenediaminetetraacetic acid ferric ammonium dihydrate 60g ethylenediaminetetraacetic acid 3g ammonium thiosulfate (70% solution) 100If/ammonium sulfite (
(40% solution) Adjust to pl-17.1 with 27.5 m potassium carbonate or glacial acetic acid, and add water to bring the total volume to 12. (Stabilizing liquid) 5-chloro-2-methyl-4-isothiazolin-3-one 1.0 g Ethylene glycol 10 (11-hydroxyethylidene-1,1'-diphosphophone 1lI2.5 g Bismuth chloride 0.21; 1 magnesium chloride Add 1.0 g of sodium trilotriacetate to 0.1 g of ammonium hydroxide (28% aqueous solution) 2.01; to make the total amount monotonous, and add pi-17 with ammonium hydroxide or sulfuric acid.
, adjust to 0. As mentioned above, the stabilization treatment was carried out using a countercurrent method with a soda composition. The sensitivity difference of kzEζ0.6
The one that spread from 0.9 to 0.9 was used. Table 2 shows the results obtained by adding 0.01 f/A of 1-phenyl-3-pyrazolidone to the developer and examining the υ gamma value and density unevenness by sensitometry and scanning exposure. Table 2 Table 3 shows the results of adding citrazine rsto and zst7t to 1-phenyl-3-pyrazolidone υ and examining the sigamma value and density unevenness by sensitometry and scanning exposure. Table 3 From the results in Table 1.2.3, density unevenness occurs due to changes in scanning speed in the scanning exposure method, but with the sensitive material having a gamma value according to the present invention, the density unevenness can be practically eliminated. It can be reduced to a certain extent. Example 2 In order to further test the effects of the present invention, the present invention was applied to a high-sensitivity reversal color vapor photosensitive material. That is, a photosensitive material was prepared in which a red light-sensitive emulsion layer, an intermediate layer, a green light-sensitive emulsion layer, a yellow filter layer, a blue light-sensitive emulsion layer, an ultraviolet absorbing layer, and a protective layer were coated on polyethylene laminate paper in this order. (a) Red-sensitive emulsion II (first layer) A silver iodobromide emulsion having an average grain size of 0.4 μ and consisting of 2.5 mol% silver iodide and 90% silver bromide was prepared by simultaneous mixing and neutralization method. After making and washing the precipitation with water, a second ripening is carried out by adding Hiho and thiocyanine.
D-4] was added (emulsion R-A). Similarly, silver iodide had an average grain size of 0.45 μ and 4.7
A silver iodobromide emulsion containing 90 mol % of silver bromide was prepared in the same manner (emulsion R-8). In the same manner as in Example 1, stabilizers, surfactants, cyan coupler liquid, and gelatin were added to give *15 silver amount o and 43 gλ/l. (b) First intermediate layer (second layer) Prepare a 2.5% gelatin solution containing a protect-dispersed solution containing gray colloidal silver, dioctyl phthalate, and 2°5-dioctylhydroquinone surfactant [S-1]. (c) Green-sensitive emulsion layer (third layer) having an average grain size of 0.4 μm and containing 2.1 mol% silver iodide odor. A silver iodobromide emulsion containing 90 mol% of silver oxide was prepared by a simultaneous mixing method, and after precipitation and washing with water, hypo and thiocyanate plating was added and second ripening was carried out. After completion of ripening, sensitizing dye [D-3] was added (emulsion). G-A).Similarly, silver iodide with an average grain size of 0.45μ and 4.7
Silver iodobromide containing 90 mol% of silver bromide was prepared in the same manner (Emulsion G-8>. Stabilizer, surfactant, magenta liquid and gelatin were added and coated in the same manner as in Example 1. The silver amount was adjusted to 0.4 g/m. (d) Yellow filter single layer (4th layer) Using the solution of Example-1, the colloidal silver coating amount was adjusted to 0.15 Q/■2. (e ) Blue-sensitive emulsion layer (fifth layer) A silver iodobromide emulsion having an average grain size of 0.7μ and containing 3.0 mol% of silver iodide was prepared by the conversion method, and after precipitation and washing, hypo and thiocyanate plating was added. After the second ripening was completed, sensitizing dye [D-1] was added (emulsion B-A).
. Similarly, silver iodide has an average grain size of 0.74μ and 5.1 μm.
A silver iodobromide emulsion containing mol % was prepared in the same manner as Xl (emulsion B-8). Furthermore, a stabilizer, a surfactant, a yellow coupler solution, and a gelatin hardener were added in the same manner as in Example 1 to obtain a coated silver amount of 0.
It was made to be 58g/-. (f) Ultraviolet absorbing layer (sixth layer) Same as the third intermediate layer of Example-1. (a) Protective layer (7th layer) The same method as the protective layer of Example-1 was made. After exposure was carried out in the same manner as in Example 1 and color inversion processing was performed, sensitometry and evaluation of density unevenness were carried out in the same manner as in Example 1. The results are shown in Table 4. The reversal color development process and its composition are as follows. Reversal color development processing step 1st development 38℃ + 0.3℃ 1 minute 15
1st water wash at 38°C + 0.5°C 1 minute 30 seconds 2nd exposure (100 Lux) 10 seconds Color development 38°C + 0.5°C 1 minute 30 seconds Bleach constant I Home 38°C + 0.5°C 2 minutes 2nd washing
Rinse at 38℃ + 0.5℃ for 1 minute and 45 seconds
38℃+0.5℃ 3 seconds (first developer composition) Sodium hexametaphosphate 2.0g 1-phenyl-3-pyrazolotone o, s g Anhydrous sodium sulfite so, o g Hydroquinone
6.0g anhydrous sodium carbonate
30. OQ potassium bromide
0.1g Sodium thiocyanate 1
．． 5g 6-nitropenzimidazole nitrate 0.8g Potassium iodide 0.01 Q Add water to make 1.0p. (Color developer composition) Benzyl alcohol 6.01β Sodium hexametaphosphate 2.0 g Anhydrous sodium sulfite 5.0 g Sodium diphosphate 40. OQ potassium bromide
0,25 Q potassium iodide
0,01 Ill Sodium hydroxide
6.5g ethylenediamine sulfate
1.8g hydroxylamine sulfate 2
．． 2 g N-ethyl-N-β-methanesulfonamide ethyl-4-aminoaniline sulfate 5.0 g water to make 1.01. (Bleach-fix solution composition) Ammonium thiosulfate 100.0 Q Ethylenediaminetetraacetate iron ammonium so, og Ethylenediaminetetracetate vinegar 12 Ammonium 5.0g Anhydrous sodium sulfite 2.7g Thiourea
Add 1.0g water to make 1.0ρ. Ib, Dodj': White Table-4 From the results in Table-4, it is possible to significantly reduce density unevenness even in the photosensitive material for reversal color vapor according to the present invention. [Effect of the invention 1] As explained in detail above, according to the present invention, although a scanning exposure method is adopted, density unevenness is not a practical problem by using a sensitive material having a gamma value within a specific range. High-quality images can be obtained because the image quality can be reduced to a range where there is no image.

[Brief explanation of drawings]

1(a) and 1(b) are characteristic curve diagrams for explaining the definition of the gamma value in the present invention, and FIG. 2 is a schematic cross section showing an example of an image forming apparatus implementing the image forming method according to the present invention. It is a diagram. 1... Image forming apparatus main body, 3... Image exposure section, 1
1...Paper feed section, 12...Sensitive material, 13...
- Conveyance unit, 22... Cutting member, 24...
Photographic processing department, 30...Drying department Patent applicant: Konishi Roku Photo Industry Co., Ltd. Figure 1 ((2) Cb in case of F + - f) Negative-positive a combination Figure 2 Procedural amendment (voluntary) ) April 16, 1985 Patent application dated April 6, 1985 1. Name of the invention Copying image forming method 3. Relationship with the amendment person case Patent applicant address 1-26 Nishi-Shinjuku, Shinjuku-ku, Tokyo Number 2 name
(127) Representative Director of Konishiroku Photo Industry Co., Ltd.
Keio Ide 4, Agent 102 Address Matsuoka Kudan Building, 2-2-8 Kudanminami, Chiyoda-ku, Tokyo Telephone 263-9524 (1) Correct the application form as shown in the attachment. (2) "Image forming method" on page 1, line 2 of the specification is corrected to "Copying image forming method J." (3) Patents on page 1, lines 3 to 10 of the specification The scope of the claims is amended as shown in the attached sheet. (4) In the 15th line of page 3 of the specification, the phrase "in a method of forming an image" is corrected to "in a method of forming a copying image." 2. Scope of Claims After directly exposing an original image to a silver halide photographic light-sensitive material using optical means using a scanning method, a developed image corresponding to the original image is formed by processing with a processing liquid having development processing and fixing ability. In the image forming method 11, the gamma value of the silver halide photographic light-sensitive material after the development process is 0.8.
11. Image forming method characterized in that the temperature is 1.7.

Claims (1)

[Claims] An image forming method in which an original image is directly exposed on a silver halide photographic light-sensitive material using an optical means using a scanning method, and then a developed image corresponding to the original image is formed by processing with a processing liquid having development processing and fixing ability, The gamma value of the silver halide photographic light-sensitive material after the development treatment is 0.8 to 1.
．． 7. An image forming method characterized by: