JP2613415B2 - Image forming method - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image forming method capable of forming an image by high-speed processing and preventing a failure such as a roller transfer mark.

[Background of the Invention]

In recent years, in the field of silver halide photographic light-sensitive materials, there has been a demand for faster development processing, that is, an increase in the amount of processing within the same time.

The above tendency is also found in the field of X-ray sensitive materials, for example, medical X-ray films. This is because the number of diagnoses is rapidly increased due to the enforcement of periodic medical examinations, the number of examination items is increased in order to make the diagnosis more accurate, and the number of X-ray photographs is increasing.

The advantage of accelerating the processing of X-ray films and the like is also great for automatic processors.

For example, even with a small automatic developing machine, if the processing speed is increased, the processing capacity per unit time is increased. If the same processing capacity is sufficient, the automatic developing machine can be reduced in size and space can be saved.

However, although the advantages of rapid processing are great as described above, there are also problems that need to be solved.

That is, when the rapid processing is performed, the transport speed increases, and when an automatic developing machine such as a roller-type automatic developing machine is used, a failure such as a roller transfer mark is easily generated, and a failure is likely to occur. This roller transfer mark means that when the photosensitive material is processed, gelatin at the leading or trailing cut surface adheres to the transport roller in the transport direction of the photosensitive material, and this is transferred to the subsequent film surface. It appears as

[Object of the invention]

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems and to provide an image forming method capable of forming an image by high-speed processing and hardly causing a failure such as a roller mark.

[Configuration of the invention]

The present inventors have conducted intensive studies and developed a silver halide light-sensitive material.
The photosensitive material contains at least one compound arbitrarily selected from the group consisting of a compound represented by the following general formula [I] and a compound represented by the following general formula [II]. By an image forming method characterized by being performed by processing by a roller transport type automatic developing machine,
The present inventors have found that the above objects can be achieved, and have reached the present invention.

l ^0.75 × T = 50 to 124 0.7 <l <3.1 where l is the length (unit: m) from the core of the first roller at the insertion port of the roller transport type automatic developing machine to the core of the last roller at the drying outlet. And T is the time (unit: seconds) used to pass through l.

As a result of various studies, the present inventors have found that only the compound represented by the general formulas [I] and [II] according to the present invention exerts an effect on the above object. This has led to the present invention. Although the action of the present invention is not necessarily clear, it is presumed that the above compound exerts a selective effect on deterioration of the cut surface of the film due to corrosion or the like by microorganisms or the like.

Hereinafter, the present invention will be described in detail. First, the compounds represented by the general formulas [I] and [II] used in the present invention will be described. Each equation is as follows.

In the formula, R ₁ is a hydrogen atom, a linear or branched alkyl group, a cyclic alkyl group, an alkenyl group, an aralkyl group, an aryl group, a heterocyclic group, an alkylamide group, an arylamide group, an alkylthioamide group, or an arylthioamide group. ,
Represents an alkylsulfonamide group or an arylsulfonamide group, wherein R ₂ and R ₃ are each a hydrogen atom, a halogen atom, an alkyl group, a cyclic alkyl group, an aryl group, a cyano group, an alkylthio group, an arylthio group, an alkylsulfoxide group, and an alkylsulfonyl group; And a heterocyclic group. However, the above alkyl group, cyclic alkyl group, alkenyl group, heterocyclic group,
The aralkyl group and the aryl group may have a substituent.

R ₂ and R ₃ may form a ring.

The ring constituted by R ₂ and R ₃ may be an aromatic ring.

In the formula, R ₄ represents hydrogen, a lower alkyl group or a hydroxymethyl group, and R ₅ represents a hydrogen or a lower alkyl group.

Here, the lower alkyl group refers to an alkyl group having 1 to 4 carbon atoms.

As the compound represented by the general formula [I], compounds of the following general formulas [III] and [IV] are more preferably used.

In the formula, R ₆ is a hydrogen atom, an alkyl group or an alkoxy group, R ₇ , R ₈ and R ₉ each represent a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, a cyano or a nitro group,
R ₁₀ represents a hydrogen atom, an alkyl group, a cyclic alkyl group, an alkenyl group, an aralkyl group, an aryl group, a -CONHR ₁₃ group (R ₁₃
Represents an alkyl group, an aryl group, an alkylthio group, an arylthio group, an alkylsulfonyl group, or an arylsulfonyl group. ) Or a heterocyclic group, wherein R ₁₁ and R ₁₂ are each a hydrogen atom, a halogen atom, an alkyl group, a cyclic alkyl group, an aryl group, a cyano group, an alkylthio group, an arylthio group, an alkylsulfoxide group, an alkylsulfinyl group or an alkyl group. Represents a sulfonyl group or a heterocyclic group. The alkyl group represented by R ₆ , R ₇ , R ₈ or R ₉ and the alkyl portion of the alkoxy group preferably have 1 to 1 carbon atoms.
6 linear or branched alkyl groups.

Representative specific examples of the compound represented by the above general formula [III] are shown below. However, it is not limited to these.

(Exemplified compounds) Benzoisothiazolin-3-one, 2-methyl-benzoisothiazolin-3-one, 2-ethyl-benzoisothiazolin-3-one, 2- (n-propyl) -benzoisothiazolin-3-one, 2- (N-butyl) -benzisothiazolin-3-one, 2- (sec-butyl)-
Benzoisothiazolin-3-one, 2- (t-butyl)
-Benzoisothiazolin-3-one, 2-methoxy-benzoisothiazolin-3-one, 2-ethoxy-benzoisothiazolin-3-one, 2- (n-propyloxy) -benzoisothiazolin-3-one, 2- (n -Butyloxy) -benzisothiazolin-3-one, 5-
Chloro-benzoisothiazolin-3-one, 5-methyl-benzoisothiazolin-3-one, 6-ethoxy-benzoisothiazolin-3-one, 6-cyano-benzoisothiazolin-3-one, 5-nitro-benzoisothiazoline-3 -ON.

In R ₁₀ in the general formula (VI), the carbon number of the alkyl group and the alkenyl group is 1 to 36, more preferably from 1 to 18. The cyclic alkyl group has 3 to 12 carbon atoms, and more preferably 3 to 6 carbon atoms. The alkyl group represented by R ₁₀ , a cyclic alkyl group, an alkenyl group, an aralkyl group, an aryl group and a heterocyclic group may have a substituent, and the substituent may be a halogen atom, nitro, cyano, thiocyano, Aryl, alkoxy, aryloxy, carboxy, sulfoxy, alkylcarbonyl, arylcarbonyl, alkoxycarbonyl, aryloxycarbonyl, sulfo, acyloxy, sulfamoyl, carbamoyl, acylamino, diacylamino, ureido, thioureido, urethane, thiourethane, sulfonamide, Heterocyclic group, arylsulfonyloxy, alkylsulfonyloxy, arylsulfonyl, alkylsulfonyl, arylthio, alkylthio, alkylsulfinyl, arylsulfinyl, alkylamino, di It is selected from alkylamino, anilino, N-alkylanilino, N-arylanilino, N-acylamino, hydroxy and mercapto groups.

In R ₁₁ and R ₁₂ of the general formula [IV], the alkyl group has 1 to 18 carbon atoms, and more preferably 1 to 9 carbon atoms. The cyclic alkyl group has 3 to 18 carbon atoms, more preferably 3 to 6 carbon atoms.
It is. Each group represented by R ₁₁ and R ₁₂ may have a substituent, and examples of the substituent include a halogen atom, a nitro group, a sulfone group, an aryl group, and a hydroxy group.

Representative specific examples of the compound represented by the general formula [IV] are shown below, but the compound of the present invention is not limited thereto.

(Exemplary compound) 2- (N-methylcarbamoyl) -3-isothiazolinone, 5-methyl-2- (N-methylcarbamoyl)-
3-isothiazolinone, 2- (N-methylthiocarbamoyl) -3-isothiazolinone, 4-bromo-5-methyl-2- (N-methylcarbamoyl) -3-isothiazolinone, 4-cyano-5-methylthio-2- (N -Methylcarbamoyl) -3-isothiazolinone, 4-cyano-5-methylsulfinyl-2- (N-methylcarbamoyl) -3-isothiazolinone, 4-cyano-5-methylsulfonyl-2- (N-methylcarbamoyl) -3 −
Isothiazolinone, 2- (Nn-butylcarbamoyl) -3-isothiazolinone, 2- (Nt-octylcarbamoyl) -3-isothiazolinone, 5-methyl-
2- (N-phenylcarbamoyl) -3-isothiazolinone, 4-cyano-5-methylthio-2- (N-phenylcarbamoyl) -3-isothiazolinone, 4-bromo-5-methyl-2- (N-3-chlorophenyl Carbamoyl) -3-isothiazolinone, 5-bromomethyl-2
-(N-3-chlorophenylcarbamoyl) -3-isothiazolinone, 5-methyl-2- (N-3-chlorophenylcarbamoyl) -3-isothiazolinone, 4-cyano-5-methylthio-2- (N-3-chlorophenylcarbamoyl ) -3-isothiazolinone, 2- (N-3-
(Chlorophenylcarbamoyl) -3-isothiazolinone, 5-methyl-2- (N-2-chlorophenylcarbamoyl) -3-isothiazolinone, 5-bromomethyl-
2- (N-2-chlorophenylcarbamoyl) -3-isothiazolinone, 4-bromo-5-methyl-2- (N-
3,4-dichlorophenylcarbamoyl) -3-isothiazolinone, 5-methyl-2- (N-3,4-dichlorophenylcarbamoyl) -3-isothiazolinone, 4-cyano-5-methylthio-2- (N-3,4- Dichlorophenylcarbamoyl) -3-isothiazolinone, 5-methyl-2- (N-4-tosylcarbamoyl) -3-isothiazolinone, 4-cyano-5-methylthio-2- (N-4
-Tosylcarbamoyl) -3-isothiazolinone, 4-
Bromo-5-methyl-2- (N-4-tosylcarbamoyl) -3-isothiazolinone, 2- (Nn-propylcarbamoyl) -3-isothiazolinone, 2- (N-ethylcarbamoyl) -3-isothiazolinone, − (N
-I-propylcarbamoyl) -3-isothiazolinone, 4-bromo-2- (N-methylcarbamoyl) -3
-Isothiazolinone, 2- (N-4-methoxyphenylcarbamoyl) -3-isothiazolinone, 2- (N-2
-Methoxyphenylcarbamoyl) -3-isothiazolinone, 2- (N-3-nitrophenylcarbamoyl)-
3-isothiazolinone, 2- (N-3,4-dichlorophenylcarbamoyl) -3-isothiazolinone, 2- (N
-N-dodecylcarbamoyl) -3-isothiazolinone, 2- (N-2,5-dichlorophenylcarbamoyl)
-3-isothiazolinone, 2- (N-carbethoxymethylcarbamoyl) -3-isothiazolinone, 2- (N
-4-nitrophenylcarbamoyl) -3-isothiazolinone, 5-methyl-2- (N-ethylcarbamoyl)
-3-isothiazolinone, 5-methyl-2- (N-ethylthiocarbamoyl) -3-isothiazolinone, 5-chloro-2- (N-ethylcarbamoyl) -3-isothiazolinone, 2-n-propyl-3-isothiazolinone,
2-t-butyl-3-isothiazolinone, 2-n-butyl-3-isothiazolinone, 2-cyclohexyl-3-
Isothiazolinone, 2-n-octyl-3-isothiazolinone, 2-t-octyl-3-isothiazolinone, 2
-Benzyloxy-3-isothiazolinone, 3-chloro-2-methyl-3-isothiazolinone, 3-chloro-2
-Benzyl-3-isothiazolinone, 4,5-dichloro-
2-methyl-3-isothiazolinone, 2,4-dimethyl-
3-isothiazolinone, 4-methyl-2- (3,4-dichlorophenyl) -3-isothiazolinone, 2- (3,4-
Dichlorophenyl) -3-isothiazolinone, 4,5-dichloro-2-benzyl-3-isothiazolinone, 4-bromo-5-chloro-2-methyl-3-isothiazolinone,
4-bromo-2-methyl-3-isothiazolinone, 2-
Hydroxymethyl-3-isothiazolinone, 2- (β-
Diethylaminoethyl) -3-isothiazolinone, 2-
n-propyl-3-isothiazolinone hydrochloride, 5-chloro-2-methyl-3-isothiazolinone hydrochloride, 2-ethyl-3-isothiazolinone hydrochloride, 2-methyl-3-
Isothiazolinone hydrochloride, 2-benzyl-3-isothiazolinone hydrochloride, 2-n-dodecyl-3-isothiazolinone, 2-n-tetradecyl-3-isothiazolinone,
2- (4-chlorobenzyl) -3-isothiazolinone,
2- (2-chlorobenzyl) -3-isothiazolinone,
2- (2,4-dichlorobenzyl) -3-isothiazolinone, 2- (3,4-dichlorobenzyl) -3-isothiazolinone, 2- (4-methoxybenzyl) -3-isothiazolinone, 2- (4-methylbenzyl ) -3-Isothiazolinone, 2- (2-ethoxyhexyl) -3-isothiazolinone, 2- (2-phenylethyl) -3-isothiazolinone, 2- (2-phenylethyl) -4-chloro-3-isothiazolinone, -(1-phenylethyl)
-3-isothiazolinone, 2-n-decyl-3-isothiazolinone, 2-n-octyl-3-isothiazolinone, 2-t-octyl-4-chloro-3-isothiazolinone, 2-t-octyl-4-bromo-3 -Isothiazolinone, 2-n-nonyl-3-isothiazolinone, 2-
n-octyl-5-chloro-3-isothiazolinone, 2
-(4-nitrophenyl) -3-isothiazolinone, 2
-(4-carbethoxyphenyl) -3-isothiazolinone, 5-chloro-2-methyl-3-isothiazolinone monochloroacetate, 4,5-dichloro-2-methyl-3
-Isothiazolinone monochloroacetate, 2-ethyl-
3-isothiazolinone monochloroacetate, 2-n-propyl-3-isothiazolinone monochloroacetate, 2
-Benzyl-3-isothiazolinone monochloroacetate.

The benzoisothiazolin-3-one compound represented by the general formula [III] used in the present invention is preferably contained in the range of 1 × 10 ⁻⁵ to 10% by weight based on the weight of the hydrophilic colloid, and particularly preferably 1 × 10 ⁻⁵ to 10% by weight. The range of ^-4 to 1% by weight is preferred. The isothiazolin-3-one compound represented by the general formula [IV] is preferably in the range of 1 × 10 ⁻⁴ to 10% by weight, and particularly preferably in the range of 3 × 10 ⁻⁴ to 1% by weight. The amount of addition may, of course, be outside the above range depending on the type of photographic light-sensitive material, the layer to be added, the coating method and the like.

These compounds include water or, for example, alcohols (methanol, ethanol, isopropanol, etc.), ketones (acetones), glycols (ethylene glycol,
It may be dissolved in organic solvents such as propylene glycol) and esters (such as ethyl acetate) that do not adversely affect photographic performance, and added as a solution to the hydrophilic colloid. The composition may be coated, or the photographic material may be immersed in the compound solution of the present invention. Alternatively, a method of dissolving in a high-boiling organic solvent, a low-boiling organic solvent or a mixed solvent thereof, emulsifying and dispersing in the presence of a surfactant, and adding to a liquid containing a hydrophilic colloid, or further coating on a protective layer. Is also good. Alternatively, after being contained in a high molecular compound such as polybutyl acrylate and dispersed in the presence of a surfactant, it may be added to a liquid containing a hydrophilic colloid or applied on the protective layer.

Further, among the compounds represented by the general formula [III], particularly preferred compounds are as follows.

Further, among the compounds represented by the general formula [IV], particularly preferred compounds are as follows.

Next, specific examples of the compound represented by the general formula [II] are shown below. However, these are not limited to the following examples.

These compounds can be synthesized with reference to known literature, and some are commercially available.

Next, in the present invention, an image is formed by processing of a roller transport type automatic developing machine in which 1 and T are the following conditions. The following conditional expression indicates a rapid processing that has not been available in the past. In such a rapid processing, it is considered that a favorable result can be obtained by the rapid processing when the developing processing is performed in the relationship between the processing length and the processing time corresponding to the following expression. Are empirical formulas.

l ^0.75 × T = 50-124 0.7 <l <3.1 The above l can be determined, for example, based on a photosensitive material having a photographic constituent layer on a polyethylene terephthalate support having a thickness of 175 μm.

The above T is obtained by inserting the leading end of the film into the core portion of the first roller at the insertion port of the automatic developing machine, and then moving the developing tank, the transfer section, the fixing tank, the transfer section, the washing tank, the transfer section, and the drying section. The entire time until the leading edge of the film passes from the final roller at the drying outlet after passing through (in other words, the total length (m) of the processing line divided by the line transport speed (m / sec.) (Sec. )].

Here, the reason why the time of the transition portion should be included is well known in the art. However, since the liquid of the previous process swells in the gelatin film also at the transition portion, the processing step is substantially performed. Is considered to be progressing.

The number of all transport rollers of the automatic developing machine used in the image forming method of the present invention is preferably such that the value obtained by dividing l, which is the processing length of the automatic developing machine, by the number of rollers is in the range of 0.01 to 0.04. Further, the time of each processing part is preferably as follows. The time of each processing part is preferably in the following range.

Inserting + developing + migratory 25-40% Fixing + migratory 12-25% Washing + migratory 10-25% squeeze + drying 25-45% total 100% The roller used is 12mm-60mm
The length is preferably between 30 cm and 110 cm, and various materials can be used. For example, bakelite-based materials (which may include glass powder, metal powder, and plastic powder) in the areas of development, fixing, washing, and drying are used. And rubber (neoprene, isoprene, silicone rubber, etc.). It is preferable to use water-repellent and elastic silicon rubber or the like, or "Kurarino" (trade name, a product of Kuraray Co., Ltd.), a synthetic leather having high water absorption, for the transition portion and the squeeze portion.

In the present invention, the above-mentioned 1 is in the range of 0.7 or more and 3.1 or less, whereby a preferable result is obtained. When 1 is smaller than 0.7, each processing step becomes small, the number of rollers used becomes small, and the sensitivity is lowered and the transportability is deteriorated. Conversely, if l is greater than 3.1, the transport speed becomes too high, and the film is liable to be scratched, and the durability of the automatic developing machine rapidly deteriorates.

When the product of l ^0.75 and T is less than 50, not only does the sensitivity of the processed film sharply decrease, but also in a film in which a sensitizing dye is used in an amount of 10 mg / m ² or more per one side of the support. The rest is also a problem. This problem has been found by study by the present inventors. Preferably l ^0.75 and T
Is 76 or more.

On the other hand, when the product of l ^0.75 and T exceeds 124, the granularity of the photographic image is greatly deteriorated although the sensitivity hardly increases,
It turned out that fog started to rise.

In carrying out the present invention, various additives can be further added to the developing solution and the fixing solution used in the automatic developing machine.

Typical additives to be added to the developer include antifoggants, accelerators composed of alkalis such as sodium hydroxide, sodium carbonate and potassium carbonate, potassium bromide,
Methylbenzimidazole, inorganic or organic inhibitors such as methylbenzthiazole, hard water softeners such as polyphosphate, surface overdevelopment inhibitor comprising a small amount of iodide or mercapto compound, and the like, If necessary, a preservative such as sulfite, a buffer (for example, carbonate, boric acid, borate, alkanolamine), an alkali (for example, hydroxide or carbonate), a dissolution aid (for example, polyethylene glycols) , An ester thereof), a pH adjuster (for example, an organic acid such as acetic acid), a sensitizer (for example, a quaternary ammonium salt), a surfactant and the like.

Further, a hardener can be included in the developer. As the hardener, a dialdehyde-based hardener can be preferably used.

The developer may further contain a chelating agent (eg, ethylenediaminetetraacetic acid, an alkali metal salt thereof, a polyphosphate, a nitriloacetate).

The development processing temperature is generally determined in relation to the processing time, but in the present invention, preferably, for example, 30 to
6-20 seconds at 40 ° C.

The fixing solution used in the fixing treatment step is, for example, an aqueous solution containing a thiosulfate and a water-soluble aluminum compound, and may contain a polybasic acid such as citric acid or tartaric acid, and preferably has a pH of about 3.5 to 5.0. (20 ° C).

In the method of the present invention, a stop step may be provided after the development, but the stop step is generally omitted in a roller transport type automatic developing machine. As a result, the developer may be brought into the fixer and the pH of the fixer may rise. Therefore, it is desirable to adjust the pH of the fixer to about 3.6 to 4.7 (20 ° C.).

As the fixing agent, thiosulfuric acid such as onmonium thiosulfate and sodium thiosulfate is generally used, and ammonium thiosulfate is particularly preferred from the viewpoint of fixing speed. The amount of the fixing agent used can be changed as appropriate, and is generally about 0.1 to 5 mol /.

A water-soluble aluminum salt which mainly acts as a hardener in the fixing solution can be used, and is a compound generally known as a hardening agent for an acidic hardening fixer, for example, aluminum chloride, aluminum sulfate, potassium sulfate. There are alums. The fixing temperature and time in the present invention are preferably, for example, 20 to 35 ° C. for 4 seconds to 15 seconds.

The developed and fixed photographic material is usually washed with water and dried. The washing with water is performed to almost completely remove the silver salt dissolved by the fixing, and for example, preferably at about 20 to 50 ° C. for 5 to 12 seconds. Drying is performed at about 40 to 100 ° C., and the drying time may be appropriately changed depending on the surrounding conditions, but usually about 5 to 15 seconds.

FIGS. 1 and 2 show an example of a roller transport type automatic developing machine preferably used in carrying out the present invention.

1 and 2, reference numeral 1 denotes a first roller at a photosensitive material insertion opening, 2 denotes a final roller at a drying outlet, 3a denotes a developing tank, 3b denotes a fixing tank, 3c denotes a washing tank, and 4 denotes an object to be processed. Photosensitive material,
Reference numeral 5 denotes a squeezing section, 6 denotes a drying section, and 7 denotes a dry air outlet.

〔Example〕

Hereinafter, embodiments of the present invention will be described in detail. Note that, needless to say, the present invention is not limited to the embodiments described below.

Example 1 Silver iodobromide having an average silver iodide content of 2.0 mol% was subjected to gold-sulfur sensitization using chloroaurate, sodium thiosulfate and ammonium thiocyanate to give 4-hydroxy-6-methyl It was stabilized with -1,3,3a, 7-tetrazaindene and subjected to spectral sensitization using sensitizing dyes A and B described below.

The following additives were added to the emulsion obtained as described above,
An emulsion solution (a silver halide coating solution) was obtained. The amount of addition is shown in an amount per mole of silver halide.

Further, the compounds (or comparative compounds) represented by the general formula [I] or [II] according to the present invention were added in the types and amounts shown in Table 1.

On the other hand, as a protective film solution, 1 g of a matting agent composed of polymethyl methacrylate having an average particle size of 3.5 μm, 30 g of colloidal silica, and the following compounds as surfactants were added. However, the amount of addition indicates the amount per coating solution.

Further, as a hardening agent, formaldehyde and glyoxal were mixed in equimolar amounts and added.

The emulsion and the overcoat solution were mixed with glycidyl methacrylate 50
wt%, 10 wt% of methyl acrylate, 40 wt% of butyl methacrylate, a copolymer aqueous dispersion obtained by diluting the copolymer to a concentration of 10 wt% as a subbing liquid. On both sides of the provided 175 μm polyethylene terephthalate film support, a silver halide emulsion layer in order from the support, a coating speed of 90 m / so as to become a protective layer.
A sample was obtained by simultaneously coating two layers in min. The silver amount was 40 mg / dm ² in each case.

The gelatin of the emulsion layer was 2.0 g / m ² and the gelatin of the protective film layer was 1.0 g / m ² . In each case, lime-processed ossein gelatin was used.

Each obtained sample, using the following developer, fixer,
In the automatic developing machine shown in FIG. 1, development processing was performed without performing exposure.

Each sample was cut one by one by a cutting device shown in FIG. In FIG. 3, reference numerals A1 and A2 indicate cutting blades, and reference numeral B indicates a photosensitive material (sample). The evaluation of the roller transfer mark was performed using an automatic densitometer, and a chain ΔD obtained by subtracting the density around the roller transfer mark from the density of the roller transfer mark.

 The following developer and fixer were used.

<Developer> The resulting solution was adjusted to pH 10.50 with potassium hydroxide.

<Fixer> Glacial acetic acid was added to the aqueous solution of No. 1 to obtain a pH 4.0 solution.

 The results are shown in Table 1.

As described above, when the image forming method of the present invention is used, the effect is remarkable because little or no roller transfer is obtained.

Example 2 The same experiment as in Example 1 was carried out by using an automatic developing machine (l =
0.73 (m)). The results were exactly the same.

〔The invention's effect〕

As described above, according to the present invention, it has been possible to provide an image forming method which solves the above-mentioned conventional problems, enables image formation by high-speed processing, and hardly causes a failure such as a roller mark.

[Brief description of the drawings]

FIG. 1 and FIG. 2 are configuration diagrams of an automatic developing machine used in an embodiment of the present invention. FIG. 3 is a configuration diagram of the cutting apparatus used in the embodiment. 1... First roller at photosensitive material insertion port, 2... Last roller at drying outlet, 3a... Developer tank, 3b... Fixing tank, 3c.
Washing tank, 4 ... photosensitive material, 5 ... squeeze section, 6 ... drying section, 7 ... outlet for dry air.

Claims (1)

(57) [Claims] 1. An image forming method for forming an image by developing a silver halide light-sensitive material, wherein the light-sensitive material is a compound represented by the following general formula [I] or a compound represented by the following general formula [II]: At least one arbitrarily selected from the group consisting of
An image forming method, comprising a compound of the type described above, and wherein image formation is carried out by a roller transport type automatic developing machine under conditions corresponding to the following formula. l ^0.75 x T = 50 to 124 0.7 <l <3.1 where l is the length (unit: m) from the core of the first roller at the insertion port of the roller-type automatic developing machine to the core of the last roller at the drying outlet. And T is the time (unit: seconds) used to pass through l. In the formula, R ₁ is a hydrogen atom, a linear or branched alkyl group,
Represents a cyclic alkyl group, an alkenyl group, an aralkyl group, an aryl group, a heterocyclic group, an alkylamide group, an arylamide group, an alkylthioamide group, an arylthioamide group, an alkylsulfonamide group, or an arylsulfonamide group, and R ₂ , R ₃ Represents a hydrogen atom, a halogen atom, an alkyl group, a cyclic alkyl group, an aryl group, a cyano group, an alkylthio group, an arylthio group, an alkylsulfoxide group, an alkylsulfonyl group, and a heterocyclic group, respectively. However, the above alkyl group, cyclic alkyl group, alkenyl group, heterocyclic group,
The aralkyl group and the aryl group may have a substituent. R ₂ and R ₃ may form a ring. The ring constituted by R ₂ and R ₃ may be an aromatic ring. In the formula, R ₄ represents hydrogen, a lower alkyl group or a hydroxymethyl group, and R ₅ represents a hydrogen or a lower alkyl group.