JPS6392948A - Copy image forming method - Google Patents

Abstract

PURPOSE:To obtain an image having good harmony and high quality by directly exposing an original image obtd. by combining the image having density gradation and area gradation to a photosensitve material having a specific gamma-value, thereby forming a copied image. CONSTITUTION:The original image is composed of a combination of the image (such as a photography) having the density gradation and the image (such as a latter and an illustration) having the area gradation. The original image is exposed directly to a silver halide photographic material by means of an optical means, followed by developing and processing it with a processing solution having fixing ability, thereby forming the visible image corresponding to the original image on said photosensitive material. At this time, the photosensitive material which is controlled said gamma-value to 1.1-2.2, after processing, is used. The photosensitive material is formed by mixing the silver halide emulsions having such as high sensitivity and low sensitivity respectively or by applying two or more of the layers of said emulsions on a substrate, separately. Thus, the images obtd. by combining plural images are united, thereby obtaining the copied image having good harmony.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a copy image forming method, and in particular, the present invention relates to a method for forming a copy image, and in particular, the present invention relates to a copy image forming method, in which an original image composed of an image consisting of density gradation and an image consisting of area gradation is converted into an image of the same gradation. The present invention relates to a copy image forming method that can be formed as a copy image.

[Background of the invention]

It is generally very difficult to combine an image formed by halftone dots, such as gravure, with no continuity of gradation, and an image made of continuous gradation, such as a photograph, in a single screen.

For example, as in printing, it is possible to do halftone decomposition of a photographic image, convert the density gradation to area gradation, and then combine it with images such as text, but although this method is suitable for mass production, it can only be used in small quantities. Items that are not needed have the disadvantage of being expensive.

Furthermore, according to the method of compositing using a photographic method, even if the photographic part has a good finish, the density of the image consisting of area gradation such as gravure may be insufficient, and if a high-contrast photosensitive material is used, the text may be sharp. However, the gradation of the photo part becomes very hard, and in any case, it is impossible to obtain a harmonious and high-quality image of both the photo and the gravure image.

There have also been attempts to convert 2- or 4-degree continuous gradation image information into digital information, and output area gradation image information based on this digital information using a printing device such as an inkjet printer. However, the equipment is complicated and expensive, and the image quality is never satisfactory.

A simple method is to paste a photo and gravure onto a single sheet of paper and combine them, but the gradation of the two may not match, shadows may appear due to light irradiation, and the result is not always good. do not have.

[Purpose of the invention]

In view of the above-mentioned conventional circumstances, the present invention can easily harmonically synthesize a photographic image consisting of density gradation and an image consisting of area gradation to the same gradation, It is an object of the present invention to provide a copy image forming method that can obtain a high-quality composite image that is not recognized as an image.

[Structure and operation of the invention]

In the present invention, an original image composed of at least a combination of an image consisting of density gradation and an image consisting of area gradation is developed using an optical means so that the gamma value after processing is 1.1 to 2.
A copy image obtained by directly exposing a silver halide photographic light-sensitive material adjusted to 2, and then subjecting it to development and treatment with a processing solution having fixing ability to form a developed image corresponding to the original image on the silver halide photographic light-sensitive material. The above object has been achieved by obtaining a forming method.

In the present invention, an image consisting of density gradation means that when a silver halide photographic light-sensitive material is exposed to light, the density of the image changes continuously depending on the degree of exposure of the silver halide photographic emulsion that forms the light-sensitive material. An image expressed using area gradation is an image in which the gradation is created by the state of aggregation of points made of dyes or colored particles with a substantially constant density. It is true.

Typical methods for forming this include, for example, electrophotography and a method using a dot link printer. Therefore, in the present invention, a small number of original images (each image having both an image consisting of density gradation and an image consisting of area gradation) is required. An image is formed by directly exposing a silver halide photographic light-sensitive material.The silver halide photographic light-sensitive material used at this time has a gamma value (hereinafter referred to as γ value) in a characteristic curve after processing such as development processing. is adjusted to 1.1 to 2.2, preferably 1.8 to 2.2. Here, the γ value is defined as follows: The original image is used as an original image, and the original image is passed through an exposure system and subjected to appropriate exposure so that it can be reproduced from low density to high density on a light-sensitive material, and then developed.
The average gradation connecting the density point DI of minimum density (Fo9) + 0.2 and the density point D2 of minimum density (Fo3) + 1.2 on this characteristic curve is expressed as a characteristic curve showing the relationship between n light quantity. Defined as gamma value in the invention [Figure 1 (a)
, (d)].

As a method for preparing a silver halide photographic material whose gamma value after development is the gamma value of the present invention, for example, high- and low-sensitivity silver halide emulsions are mixed or separated into two or more layers and then applied to 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. In addition, if necessary, in order to further improve the linearity of the characteristic curve, medium-sensitivity silver halide emulsions may be used to form three types (or three layers).In the case of a multilayer color photosensitive material, blue, green, , silver halide emulsions that give red light an angry color are used.

The gamma value can also be changed by appropriately changing the pH 1 temperature, time, developing agent, development immediate agent, development accelerator, etc. of the developer used.

The smaller the gamma value, the less noticeable density unevenness, but if it is too small, the contrast of the copied image will be too low and the image quality will deteriorate.

On the other hand, if the gamma value is increased, density unevenness will be emphasized, so as mentioned above, the gamma value is 1.1 to 2.2, preferably 1.8 to 2.2.

By adjusting the gamma value of the photosensitive material in this way, when the density gradation and area gradation images are combined and copied and exposed on the photosensitive material, the gradations of both images are made uniform. , a harmonious, high-quality image is obtained, and a harmonious composite image can be obtained without giving the impression that images composed of different gradations have been composited.

In the present invention, the original image is directly exposed to the silver halide photographic material using an optical system. As this exposure means, static exposure and scanning exposure in which the exposure position is scanned and moved can be considered.

In the scanning exposure means, the exposure source is always located diagonally below the original image, so that a shadow is always formed on the opposite side of the light source with respect to the original image. Moreover, since the exposure position is scanned and moved relative to the image, it is possible to uniformly expose the entire original image. Since the surface of the silver halide photographic light-sensitive material is sequentially exposed to the reflected light from the uniformly exposed original image, an image of the original image is continuously formed as the light source is scanned. Therefore, it is sufficient that the exposure position is relatively scanned, the light source may be moved, and the original image may be moved.

As means for scanning the foggy light position, there is a means for scanning a light source and an optical system such as a reflection mirror and a lens that receives reflected light from a subject irradiated by the light source and exposes an image on the surface of the photographic light-sensitive material. .

Furthermore, when carrying out the present invention, the silver halide photographic light-sensitive material may remain flat and stationary, or the light-sensitive material may be scanned and moved in synchronization with a light source. In an apparatus in which the photosensitive material is scanned and moved, there is no need for a space for keeping the entire surface of the photosensitive material stationary in a plane, and the apparatus can be made smaller.

As a means for synchronizing the photosensitive material with the light source as described above, any known electrical or mechanical means can be used.

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 image to the lens and the optical path length from the lens to the surface of the silver halide photographic light-sensitive material. Can be done. In other words, it is possible to form not only an image with the same size as the original image, but also an enlarged or reduced image, and in this variable magnification mechanism, a zoom lens can be particularly preferably used as the lens.

Furthermore, a light-focusing conductor 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.

In addition, instead of using optical systems such as reflective mirrors and lenses, it is also possible to use optical fibers. It has the advantage of being easy to realize compactness.

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 light-sensitive material may be opaque or transparent.

Next, when an internal latent image type silver halide photographic light-sensitive material is used in the present invention, the photographic material is provided with a halogen north limit emulsion layer containing internal latent image type silver halide. As the emulsion for forming the emulsion layer, various conventionally known internal latent image type silver halide emulsions can be used. For example, the converted silver halide emulsion described in U.S. Pat. No. 2,592.250, Japanese Patent Publication No. 58-1412
Laminated structure type silver halide emulsions described in Japanese Patent Publications No. 52-34213 and Japanese Patent Publication No. 60-5582
Examples include core/'shell type silver halide emulsions whose grain interiors are chemically sensitized as described in Japanese Patent Publication No. 1982-55820, and the like.

Halogen composition of the internal latent image type silver halide: Any one of silver chloride, silver chlorobromide, silver chloroiodobromide, silver bromide, silver iodobromide, and silver chloroiodide. These can be used alone or in appropriate combinations. It is preferable that silver chloride is contained in an amount of 5 mol % or more, and more preferably 30 mol % or more.

The shape of the silver halide grains may be any shape, for example, vertical crystals, regular octahedrons, dodecahedrons, or a mixture thereof, and grains may be spherical, tabular, or amorphous. The average particle size and particle size distribution of the silver halide grains, which may be present, can be varied widely depending on the required photographic performance, but a narrower particle size distribution is more preferable, that is, the present invention The silver halide grains have a silver halide weight within a grain size range of ±20% based on the average grain size, which accounts for 60% of the total silver halide weight.
It is preferably at least 70%, more preferably at least 70%.

Further, as the above-mentioned silver halide emulsion, one obtained by mixing silver halide grains having different average grain sizes can be used. This difference in average particle size means that the average particle size of the smaller particles is 80% larger than the average particle size of the larger particles.
% or less, preferably 70% or less. The silver halide composition or grain shape of grains with a large average grain size and grains with a small average grain size may be the same or different. Further, the mixing ratio of large particles and small particles can be selected quite freely depending on the required photographic performance. In this case, two or more types of silver halide grains may be mixed.

Further, in order to widen the exposure latitude of the internal latent image type silver halide, emulsions having different sensitivities can be stacked or mixed as emulsion layers. In this case, the ratio of the amount of coated silver in each emulsion layer can be arbitrarily determined depending on the required photographic properties.

As the internal latent image type silver halide grains of the light-sensitive material used in the present invention, internal latent image type silver halide grains which are not fogged in advance are used. The meaning that the surface of the internal latent image type silver halide grain is not fogged in advance means that the emulsion to be used is coated on a transparent film support at a density of 35 ■Ag/cj, and a test piece is coated with the following without exposure. The density obtained when developing with surface developer A at 20°C for 10 minutes is 0.6.
Preferably it does not exceed 0.4.

Surface developer A Metol 2.5 gl-Ascorbic acid 10 g NaBOz ・
4Hz0 35 gKBr
Add 1g water
11 In addition, the silver halide emulsion of the photosensitive material used in the present invention is one that provides sufficient density when the test piece prepared as described above is exposed and then developed with internal development iB having the following formulation. preferable.

Internal developer B Metol 2g Sodium sulfite (anhydrous) 90g Hydroquinone 8g Soda carbonate (
- salt water) 52.5 gKBr
5 gK
I O
, 5g of water was added, 1zMore specifically, a portion of the specimen was exposed to a light intensity scale for a defined period of time up to about 1 second;
When developed with internal developer B for 10 minutes at 20°C, another part of the specimen exposed under the same conditions was developed with surface developer A for 2 minutes.
Preference is given to those exhibiting a maximum of 72 degrees, at least 5 times, preferably at least 10 times, that obtained when developed for 10 minutes at 0.degree.

The silver halide emulsion described above can be chemically enhanced by commonly used enhancement dyes. It is also useful for the silver halide emulsion of the light-sensitive material used in the present invention to use a combination of enhancing dyes used for supersensitization such as internal latent image type halogenated emulsions and negative-type halide root emulsions. It is. Regarding the sensitizing dye, please refer to Research Disclosure.
)? Reference may be made to No. h15162 and Minami No. 17643.

In the photographic material used in the present invention, there is a method of directly obtaining a positive image by carrying out image exposure (shading) and then surface development. That is,
The main process for creating a direct positive image is to process a photographic light-sensitive material having an internal latent image type silver halide emulsion layer that has not been fogged in advance, to generate fogging nuclei by chemical action or optical action after image exposure; That is, surface development is performed after and/or while performing fogging treatment. The fogging process can be performed by exposing the entire surface to light or using a compound that generates fogging nuclei, that is, a fogging agent.

In the method of the present invention, the entire surface is exposed by immersing or moistening the image-exposed photosensitive material in a developer or other aqueous solution, and then uniformly exposing the entire surface to light. The light source used here may be any light within the sensitive wavelength range of the above-mentioned photographic light-sensitive materials, and it is possible to apply low-intensity light such as flash light for a short period of time, or to apply weak light for a long period of time. good. Further, the total exposure time can be varied over a wide range depending on the photographic material, development processing conditions, type of light source used, etc. so as to ultimately obtain the best positive image. Further, it is most preferable that the exposure amount for full-surface exposure is within a certain range in combination with a photosensitive material.

Next, the fogging agent used in fogging treatment in the present invention will be described. A wide variety of compounds can be used as the fogging agent, and it is sufficient that the fogging agent is present during the development process. (preferably in the layer), or may be contained in the developer or the processing solution prior to development. The amount used can vary widely depending on the purpose, and the preferred amount is 1 to 1,500 μm per 811 moles of halide when added to a silver halide emulsion layer, preferably 10
~1,000■. When added to a processing solution such as a developer, the preferred amount is 0.01 to 5 g/l, particularly preferably 0.05 to 1 g/l.

Examples of the above-mentioned fogging agent include those described in US Pat. No. 2,563.
785, hydrazines described in U.S. Pat. No. 2,588,982, or U.S. Pat. No. 3,227,552.
Hydrazide or hydrazine compounds described in U.S. Patent Nos. 3,615,615 and 3,718.47
No. 9, No. 3,719,494, No. 3,734,7
Heterocyclic quaternary nitrogen salt compounds described in U.S. Pat. No. 38 and U.S. Pat. No. 3.759.901;
Compounds having an adsorption group on the silver halide surface, such as acylhydrazinophenylthioureas described in No. 25, can be mentioned.

Moreover, these fogging agents can also be used in combination. For example, Research Disclosure (Re5e)
arch Disclosure) m15162
No. 1, it is described that a non-adsorption type fogging agent is used in combination with an adsorption type fogging agent, and this combination technique is also effective in the present invention. As the fogging agent used in the present invention, either an adsorption type or a non-adsorption type can be used, and they can also be used in combination.

After image exposure, the photographic light-sensitive material having a silver halide emulsion layer used in the practice of the present invention is subjected to full-surface exposure or surface development treatment in the presence of a fogging agent to directly form a positive image.

This surface development processing method means processing with a developer substantially free of silver halide solvent.

The layer formed by the internal latent image type silver halide emulsion of the above-mentioned photographic light-sensitive material may have at least one layer, and of course, the photographic light-sensitive material may have a plurality of layers as necessary. Can be done.

A common silver halide developer can be used in the surface developer used for developing the photographic light-sensitive material used in the present invention. In this case, the developer may be included in the emulsion in advance and allowed to act on the silver halide during immersion in the high pH aqueous solution.

The developer used in the above photosensitive material can further contain specific antifoggants and development inhibitors, or these developer additives can be optionally incorporated into the constituent layers of the photographic material. It is.

Next, various additives added to the silver halide emulsion of the light-sensitive material used in the present invention will be explained.

Depending on the purpose, various photographic additives such as wetting agents, film property improvers, and coating aids may be added to the silver halide emulsion used in the above-mentioned light-sensitive materials. Furthermore, other photographic additives include gelatin plasticizers, surfactants, ultraviolet absorbers,
It is also possible to use pH1Pl adjusters, antioxidants, antistatic agents, thickeners, graininess improvers, dyes, mordants, brighteners, development rate regulators, mantle agents, and the like.

The silver halide emulsion prepared as described above can be coated on a support via a subbing layer, an antihalation layer, a filter layer, etc., if necessary, to obtain a positive-working silver halide photographic light-sensitive material.

It is useful to apply the above-mentioned photographic light-sensitive material to full-color use, and in this case, a blue-sensitive silver halide emulsion layer containing a yellow coupler, a green-sensitive silver halide emulsion layer containing a magenta coupler, and a cyan coupler. The above-mentioned light-sensitive material can be formed with a red-sensitive silver halide emulsion layer containing.

Furthermore, it is useful to use ultraviolet absorbers, such as thiazolidone, benzotriazole, acrylonitrile, and benzophenone compounds, to prevent fading of dye images due to short-wavelength actinic rays.

In addition to gelatin, suitable gelatin derivatives can be used as protective colloids or binders in the silver halide emulsion layer used in the above-mentioned light-sensitive materials. A binder may be included. The above-mentioned photographic light-sensitive material can be added to photographic constituent layers such as an emulsion layer, an intermediate layer, a protective layer, a filter layer, a backing layer, etc. depending on the purpose.
Furthermore, the hydrophilic binder may contain a suitable plasticizer, lubricant, etc. depending on the purpose.

Further, the constituent layers of the photographic material can be hardened with any suitable hardening agent.

In addition, the photographic light-sensitive material has at least one light-sensitive emulsion layer containing internal latent image type silver halide grains according to the present invention on the support, as well as a filter layer, an intermediate layer, a protective layer,
It is possible to provide a large number of various photographic constituent layers such as subbing layers, backing layers, antihalation layers, etc. As these coating methods, a dip coating method, an air doctor coating method, an extrusion coating method, a slide hopper coating method, a curtain flow coating method, etc. can be applied.

In carrying out the present invention, a series of treatments after image exposure, ie, a color development treatment, a bleach-fixing treatment, and a stabilization treatment, can be performed using a known treatment solution.

〔Example〕

The present invention will be specifically explained based on the following examples. However, it goes without saying that the present invention is not limited to the following examples.

Example-1 The second drawing in the accompanying drawings is a schematic diagram showing a cross section of the entire device.

In the figure, the copying image forming apparatus 1 includes an original stand 2 made of a transparent material (not shown) such as glass, on which an original image (not shown) is placed as shown in FIG. The document placing table 2 is configured so that it can be covered with a cover 3 together with the subject as shown in FIG. A light source 4 is disposed at one end (on the left side in FIG. 2) of the lower surface of the document table 2, and the light source 4 is configured to be able to scan in the horizontal direction. Ray light i! l! 4, in this embodiment, a rod-shaped halogen lamp (200 W) with a slit width of 10 mm is used for slit exposure, and a ground glass is provided on the light exit surface to eliminate uneven light distribution. A first reflecting mirror 5 is disposed obliquely below the light source 4, and is capable of horizontal scanning movement together with the light B4. Therefore, along with the scanning movement of the light source 4, the reflected light from the subject is received, and the reflected light is transmitted toward the second reflecting mirror 6, which is disposed horizontally opposite to the reflecting mirror 5. A third reflecting mirror 7 is located below the second reflecting mirror 6.
The third
The reflecting mirror 7 sends out the reflected light from the second reflecting mirror 6 in the horizontal direction to a fourth reflecting mirror 9 disposed opposite to the third reflecting mirror 7.

However, the reflected light from the third reflecting mirror 7 is directed toward the photographic light-sensitive material F disposed near the other end of the apparatus, facing the mirror 7.
The light is formed above the transport section 8 and enters the exposure aperture 9 . The conveying section 8 is driven in synchronization with the light source 4, and presses and rotates a roll of photosensitive material F stored in a magazine attached to the other end of the forming device 1 to move it to the exposure opening. It is designed to be transported to face 9th. In other words, the photosensitive material F drawn out from the magazine is conveyed within the conveying section 8 by a series of roller pairs 10.10' to 14.14' that rotate under pressure. and the 10th - La vs. 10.10' and the 20th
A cutting blade 15 is disposed between the -R pairs 11 and 11', and is adapted to cut the photosensitive material F into desired dimensions. This cutting method includes, for example, one in which the cutting blade cuts the photographic light-sensitive material while moving in the width direction on the surface F, or one in which the cutting blade descends horizontally to the surface F of the photographic light-sensitive material and cuts the material all at once. Various materials may be mentioned, but there is no particular limitation as long as the material can cut the photosensitive material F. Of course, the above photosensitive material F
may be in the form of a sheet other than a roll; in such a case, there is no need to use a cutting blade.

The photosensitive material F facing the exposure aperture 9 by the transport section 8 is scanned and moved in synchronization with the light a4, exposed continuously, and then transferred to the photographic processing section 16 described below.

The photographic processing section 16 performs photographic processing on the exposed photosensitive material F to form a developed image corresponding to the subject.

In this embodiment, the photographic processing section 16 includes four processing tanks, that is, a developing processing tank Pa 17, a bleaching and fixing processing tank 18, and a stabilizing tank, which are sequentially arranged downstream. The stabilization tanks 19 and 20 are of a two-tank countercurrent type. Further, the disposed light source 21 is for providing fogging exposure during development processing when, for example, an internal latent image type silver halide photographic light-sensitive material is used as the photographic light-sensitive material F.

The exposed photographic material F is processed in the photographic processing section 16.
After being processed in each processing tank for a predetermined period of time, it is sent to the drying section 22, where it is dried, and then discharged from the apparatus.

Although this embodiment has been described using three reflecting mirrors, the exposure system can be made more compact by reducing the number of mirrors, which can be changed as needed.

A full-size copy of a color original was made using the copy image forming apparatus having the above configuration. The photographic material F used in this example was
Specifically, it is an internal latent image type multilayer color photosensitive material prepared by the method shown below.

The following 9 layers from the red-sensitive silver halide emulsion layer to the protective layer were formed on surface-treated polyethylene laminated paper.
The layers were coated and dried using a simultaneous coating method.

Red-colored silver halide emulsion N (1st FJ) 2.0% inert gelatin solution was kept at 50°C and poured! While moving upward, the following solutions A and B were added at the same time and injected over 3 minutes. After 10 minutes, the following solution C was added by injection over 3 minutes. After aging for 40 minutes,
After removing excess salt by a precipitation washing method, the following solution and solution E were added to deposit silver chlorobromide consisting of 95 mol % of AgCn and 5 mol % of AgBr on the surface. Excess water-soluble salts were removed again by the precipitation washing method, and a small amount of gelatin was added and dispersed.

rB r 50.6 g (85 mol%
) Thereafter, a solution containing a sensitizing dye (D-1) and an enhancing dye CD-4, 2,5-dioctylhydroquinone protected and dispersed with dibutyl phthalate, and a cyan coupler (CC-1) in this silver halide emulsion, 4 -Hydroxy-
6-methyl-1,3゜3a, 7-thitraazaindene,
Add 1-phenyl-5-mercaptotetrazole, gelatin, and an appropriate amount of coating aid (S-13).Coating silver it0
．． It was applied at a concentration of 4 g/i.

First intermediate N (second layer) Prepare a gelatin solution containing 2,5-dioctylhydroquinone dispersed in dioctyl phthalate, an ultraviolet absorber Tinuvin 328 (manufactured by Ciba Geigy), and a coating aid [S-1], Chinbin 328 was applied at a rate of 10.15 g/rd.

Green-sensitive silver halide emulsion layer (third layer) Silver halide grains were prepared in the same manner as the red-sensitive silver halide emulsion layer. A liquid containing sensitizing dye CD-2], 2,5-dioctylhydroquinone protected and dispersed with dibutyl phthalate, and magenta coupler (MC-1), 4-hydroxy-6-methyl-1,3,3a, ? -tetraazaindene, 1-phenyl-5-mercaptotetrazole,
Furthermore, appropriate amounts of gelatin and coating aid (S-2) are added. The amount of silver applied was 0.4 g/n.

Second intermediate layer (4th i) The same formulation as the first intermediate layer, with a coating amount of Tinuvin 328 of 0.2
g/cd.

Yellow Filter N (No. 5 N) 2,5-dioctylhydroquinone dispersed in yellow colloid S and dioctyl phthalate made by oxidation in an alkaline weak reducing agent (weak reducing agent was removed by the noodle water washing method after neutralization) The coating solution, coating aid (S-2) and hardening agent (H-1) (added immediately before coating) were added, and coating was carried out so that the coated silver was 10.15 g/n.

Third intermediate layer (6th N) Same formulation as the first intermediate layer, Tinuvin 328 coating amount 0.15
It was applied so that it was g/rr+.

Blue-sensitive silver halide emulsion layer (7th layer) A 1.5% inert gelatin solution was kept at 60°C and mixed with the following solutions A and B.
The liquids were added at the same time and injected over 15 minutes. Inject Kogyaku C solution for 2 minutes for 15 minutes, and inject 1 Kogyaku Hypo for 3aw/
An equivalent amount of Ag was added, and the mixture was further aged for 40 minutes. In addition, when we sampled and analyzed the composition, it was found that Ag Cj! 4 mol%,
It was silver chlorobromoiodide consisting of 96 mol % of AgBr and 12 mol % of Ag.

After removing excess salt by the precipitation water washing method, the following Dtj.

After addition of Solution E and a surface area of 197 mol % Ag and 3 mol % Ag5r, excess salt was removed again by precipitation and water washing, and gelatin for dispersion was added.

In this silver halide emulsion, yellow coupler (YC-1) dispersed with aggravating dye CD-3) and dioctyl phthalate.
), 2-mercaptobenzothiazole, 4-hydroxy-6-methyl-1°3.3a, 7-thitraazaindene, gelatin, coating aid (S-3) and hardener (
Using a solution containing H-23 (added immediately before coating), the right limit ff
It was coated at a weight of 10.5 g/+d.

4th intermediate layer (8th layer) Same as the 1st intermediate layer, Chinbin 328 coating amount 0.3 g/d
It was applied so that However, just before coating, apply a hardening agent (H-2).
) was added.

Protective layer (9th layer) Colloidal silica, coating aid [S-3], hardener (H-
2) and (H-3) (added immediately before coating) using a gelatin solution containing gelatin coating it1. Og cyan coupler (CC-1) C1□Ls Cβ Magenta coupler (MC-1) I l Yellow coupler (YC-1) C5Hz (t) Sensitizing dye CD-1) Enhanced dye (D-2) Sensitizing dye ( D-3') (CL) 3 (CHz) s;
: Sensitizing dye CD-4) Coating aid (S-13 Coating aid (S-2) Js CHz-COO-CHz-C) I-(C1ot) 5-
CHs ■ Coating aid (S-2) CHz-COOCHz (CFtCh>xHteCH-COOCHz (ChCFz)zHSO,Na Hardener (H-1) H,CCHz Hardener (H-2) Hardener ( H-3) 5OtCH=CHz Further, the specific photographic processing conditions in this example are as follows.

Processing process (processing temperature and processing time) (1) Immersion FfJ (color developer) 38℃ 8 seconds CI+) Fogging exposure -1 lux for 10 seconds ([[[)Color development 38℃ 2 minutes (
IV) Bleach fixing 35℃ 60 seconds (V)
Stabilization treatment 25-30℃ 1 minute 30 seconds (Vl
[Dry @75-80℃ 1 minute Processing solution composition <Color developer> Hensyl alcohol 1O-1 ethylene glycol 15ml Potassium sulfite 2.0g Potassium bromide 1.5g Sodium chloride 0.2g Potassium carbonate 30.0 g Hydroxylamine Sulfur% salt 3.0g Polyphosphoric acid (TPPS) 2.5
g3-Methyl-4-amino-N-ethyl-N-(β-methanesulfonamidoethyl)-niline sulfate
5,5g optical brightener (4-4'-diaminostilbenzsulfonic acid M conductor) 1,
0 g potassium hydroxide 2,
Add 0 g of water to bring the total amount to 11, and adjust the pH to 10.20.

<Bleach-fix solution> Ethylenediaminetetraacetate ferric ammonium dihydrate 60 g Ethylenediaminetetraacetate TA 3g Ammonium thiosulfate (70% solution) 100 mj!
Ammonium sulfite (40% molten i'&) 27.
5mj! Adjust the pH to 7.1 with potassium carbonate or glacial acetic acid, and add water to bring the total volume to 11.

Stabilizing liquid> 5-chloro-2-methyl-4-isothiazolin-3-one 1.0 g ethylene glycol 10 g 1-hydroxyethylidene-1,1'-diphosphonic acid
2.5g bismuth chloride
0.2g magnesium chloride
0.1g ammonium hydroxide (28% aqueous solution) 2.0g sodium nitrilotriacetate
Add 1.0 g of water to bring the total volume to 11, and adjust the pH to 7.0 with ammonium hydroxide or sulfuric acid.

Note that the stabilization treatment was performed using a countercurrent method with a two-tank configuration as described above.

An image consisting of density gradation, such as a photographic print, and an image consisting of area gradation, such as a magazine gravure, were combined to obtain a copy image as described above, and visually evaluated. That is, the above-mentioned copying was carried out with the γ value of the silver halide window optical material used in the present invention being set to 0.7 or more. Then, compare the γ values 0.7 to 1.0 (11, γ values 1.1 to 2.2
The above-mentioned samples within the range of the present invention +11 to 3),
A sample with a γ value of 2.3 to 2.6 was evaluated as a comparison (2), and the results shown in the table below were obtained.

The evaluation method in the table above is to visually check the above-mentioned copied image obtained by combining the different gradation expressions mentioned above to determine whether it can be recognized as an image consisting of multiple gradations. be. In other words, there is no sense of incongruity in each of the constituent images within the copied image, and the copy image is harmonious, with the strongest impression being that each constituent image is well integrated with the background. The results of having 100 people select an image that did not give them the impression that it was an image obtained by copying an image pasted on a computer are the number of people who responded to the above evaluation. According to the above results, it is clear that the photosensitive material used in the present invention, which has a γ value of 1.1 to 2.2, has obtained excellent evaluation.

Example 2 Next, a copy image was formed using a reversal type silver halide photographic material in the same manner as in Example 1.

First, the production of the photographic window light material will be explained.

Next, an emulsion for reversal color photographic paper is prepared, and an antihalation layer, an intermediate layer, a green-sensitive emulsion layer, a yellow filter layer, a blue-sensitive emulsion layer, an ultraviolet absorption layer, and a protective layer are coated on the support in this order. A sample was obtained.

(a) Antihalation layer Prepare a 3% gelatin solution containing 5 g of gray colloid 1, 3 g of 2,5-dioctylhydroquinone dispersed in diptylphucrate and surfactant S-1, and add 0.1 g of colloidal silver. Apply so that g/n (.

(b) Red-sensitive emulsion layer A silver iodobromochloride emulsion (Ni) having an average grain size of 0.4 μm and consisting of 3 mol % of silver iodide and 90 mol % of silver bromide was prepared by the neutral conversion method and precipitated. Hypo 5 after washing with water
(2) A second P formation was carried out by adding 10 parts of gold thiocyanate complex salt. 100■ of aggravating dye D-1, 50■ of exacerbating dye D-2
added.

Further, stabilizers T'-1, T'-2, surfactant S-2, further dibutyl phthalate, ethyl acetate, surfactant S'-
A protected dispersed coupler solution containing 2,2,5-dioctylhydroquinone and cyan couplers CC'-1 and CC'-2 was added.

Add gelatin and coat so that the coated silver amount is 0.43 g/rd.

(c) First intermediate layer A 3.5% gelatin solution containing 5 g of gray colloid, 3 g of 2,5-dioctylhydroquinone dispersed in dibutyl phthalate, and surfactant S-1 is prepared, and a hardening agent is prepared before coating. Add H-1 and add colloid jlWffto, 1 g/
Apply so that it becomes d.

(d) a green-sensitive emulsion layer having an average grain size of 0.47μ and 3 mol% of silver iodide;
1 mol of iodobromosilver chloride emulsion containing 1190 mol% bromide was prepared by the neutral conversion method (precipitated, washed with water, 7 ml of hypo and 15 ml of thiocyanate gold complex salt was added for second ripening, and aggravating dye D-3 was added. and 10μ of D-2 were added.Furthermore, Ig of stabilizer T-1 and 50μ of T-2 were added.Then, surfactant S'-1,2,5-dioctylhydroquinone,
A protected dispersed magenta coupler solution consisting of magenta coupler Mc-1, dioctyl phthalate, and ethyl acetate was added. Gelatin is added, hardener H'-1 is added, and coating is carried out so that the amount of coated silver is 0.4 g/rd.

(e) Yellow filter monolayer dioctyl phthalate, ethyl acetate, surfactant S-1
, 2,5-dioctylhydroquinone was added to the protective dispersion solution, yellow colloid was added, surfactant S-2 and hardening agent H'-1 were added, and colloid t! 1li
(f) Blue-sensitive emulsion layer having an average grain size of 0.7μ and 3.6 mol% silver iodide.
1 mol of silver iodobromide emulsion containing 1 mole of silver iodobromide was prepared by the neutral conversion method, and after precipitation and washing with water, 20 W of Hypo and 15 μm of gold thiocyanate complex were added to perform the second P formation.

Next, 18 μ of exacerbation dye D-5 is added. Also, stabilizer T-
1, add T'-3. Then surfactant S-1, 2,
5-dioctylhydroquinone, yellow coupler YC
-1. Add the protect dispersion liquid containing ethyl acetate and dioctyl phthalate.

Add gelatin and hardener H-1 until the amount of coated silver is 0.5
Apply to 8 g/rd.

(g) A protect-dispersed gelatin solution containing ultraviolet absorbing layer surfactant S-1, ultraviolet absorber Tinuvin 328, Tinuvin 320 (manufactured by Ciba Geigy), dibutyl phthalate, and ethyl acetate was prepared, and the coating amount of Tinuvin was 0.5 g/ Apply so that it becomes d.

(h) Protective layer Using a gelatin solution containing colloidal silica, coating aid S-3, and hardening agent H-2, gelatin coating amount was 0°8 g/rt.
Apply so that it becomes r.

Each substance used above is as shown below.

CD'-1) CD'-23 S O3() S Os H(D'-
3) CD'-4) (CH2) a(Cth) a SOze 503tl(D'-5
) S(hθ 50.1( [T'-1) (T'-2) CI( 3G (T'-3) a03S C,H.

CHz-COO-Ctlz-CH-(CIl□)i-C
I.

■ C5'-3) CHz-COOCIh(CF2-CF2) il1CH
-COOCHz(CFz-Ch)zH03Na (H'-1) l (H'-2) (YC'-1) (MC' 11 CI CCC'-2) H The coated and dried materials were incubated at 40°C for 5 days. After heat aging, uniform exposure was applied and reversal development was performed as described below.

The unevenness of the image was determined.

Processing step (1) First development 38°C 1 minute 15 seconds (n
) Water washing 35-38℃ (II[) 2nd n light -200CMS or more (IV
) Color development 38°C 1 minute 30 seconds (V) Water i1 30-38°C 15 seconds (Vl)
Bleach fixing 35-38℃ 2 minutes (■) Washing with water
Drying at 30-38℃ for 1 minute and 45 seconds (■)
75-80°C 1 Pollution treatment composition is as follows.

<First developer composition> Sodium hexametaphosphate 2.0g1
-Phenyl-3-pyrazolidone 0.5g Anhydrous sodium sulfite 50.0g Hydroquinone 6.0g Anhydrous sodium carbonate 30.0g Potassium bromide 0.7g Sodium thiocyanate 1.5g 6-nidrobenzimidazole nitrate 0.8g Potassium iodide
Add 0.01 g water to make 1.01.

<Color developer composition> Benzyl alcohol sodium hexametaphosphate 2.0g Anhydrous sodium sulfite 5.0g 2nd
Sodium phosphate 40.0 g Potassium bromide 0.25 g Potassium iodide 0.01 g Sodium hydroxide 6.5 g Ethylenediamine sulfate 7.8 g Hydroxylamine sulfate 2.2 g N-ethyl-N-β-methanesulfonamide Add ethyl-4-aminoaniline lactate 5.0g water and 1. Let it be O i.

<Bleach-fix solution composition> Ammonium thiosulfate 100.0
g Ethylenediaminetetraacetate iron ammonium 60.0g Ethylenediaminetetraacetate diammonium 5.0g Anhydrous sodium sulfite 2.7g Thiourea 1.0g Add water to make 1.01.

It has been confirmed that the same results as in Example 1 can be obtained with the photosensitive material for versal produced as described above.

〔Effect of the invention〕

As described above, according to the present invention, an original image composed of a combination of an image consisting of density gradation and an image consisting of area gradation is directly exposed to a silver halide photographic light-sensitive material having a T value of 1.1 to 2.2. When a copy image is formed using the above-mentioned combinations, the plurality of combined images are harmoniously integrated to form a copy image, and a harmonious image can be obtained.

[Brief explanation of the drawing]

FIGS. 1(a) and 1(b) are diagrams for explaining the T value of the characteristic curve of the silver halide photographic light-sensitive material used in the present invention,
FIG. 2 is a schematic cross-sectional view of a copy image forming apparatus used in carrying out the present invention. 17... Development processing tank, 18... Fixing processing tank, 19,
20... Stabilization tank. F...Silver halide photographic material. Patent applicant: Konishi Roku Kogyo Co., Ltd. Patent attorney Toru Takatsuki Figure 1 (a) 4th position (b) Negative-positive rule

Claims (1)

[Claims] A silver halide whose gamma value is adjusted to 1.1 to 2.2 after developing an original image composed of at least a combination of an image consisting of density gradation and an image consisting of area gradation using optical means. A method for forming a copy image, which comprises directly exposing the photographic light-sensitive material to light, and then subjecting it to development and treatment with a processing solution having fixing ability to form a developed image corresponding to the original image on the silver halide photographic light-sensitive material. .