JPH05241298A - Method for processing silver halide color photographic sensitive material - Google Patents

Abstract

PURPOSE:To enable stable continuous color development processing of the silver halide color photographic sensitive material by using a color developing solution containing a maltose type oligosaccharide. CONSTITUTION:The silver halide color photographic sensitive material is imagewise exposed and color developed with the color developing solution containing the maltose type oligosaccharide, such as maltose, cellobiose, melibiose, and gentiobiose, but it is not limited to these bicses, and these bises are available on the market, thus permitting the stable continuous processing to be executed without any problem, even when a replenishing amount of the color developing solution is reduced, and when a color negative film is continuously processed, stable processing to be carried out.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for processing a silver halide color photographic light-sensitive material, and more particularly to a method for processing a silver halide color photographic light-sensitive material which can be stably processed even during continuous color development. Is.

[0002]

2. Description of the Related Art Color photographic light-sensitive materials are processed by exposing the light-sensitive material to an image and then performing color development processing, silver bleaching processing, silver halide fixing processing, bleach-fixing processing in which bleaching processing and fixing processing are performed simultaneously, washing processing, and water washing The rinsing process and the drying process, which are alternatives to the process, are the basic processes, and are added in order to stably use each processing solution and to increase the physical strength and stability of the processed light-sensitive material. There is a processing step.

In the photographic processing, an automatic developing machine is generally used, and the necessary processing solution is used as a replenishing solution and is added to the automatic developing machine in proportion to the amount of the photosensitive material to be processed.

[0004]

However, in a highly active processing solution such as a color developing solution, when continuous processing is carried out for a long period of time, sensitivity and contrast are lowered, and fog and a base are deteriorated. It is not satisfactory such as stains. The main causes are deterioration of color developing agents and preservatives, resulting stains, lowering of pH,
Accumulation of eluate from the light-sensitive material.

These problems are less likely to occur when a large amount of treatment liquid is replenished in continuous processing, but replenishment of a large amount of treatment liquid is against resource saving, low pollution and low cost. However, it is not desirable.

[0006]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a processing method capable of stable processing when a silver halide color photographic light-sensitive material is subjected to continuous color development processing. It is characterized in that a color developing solution containing maltose type oligosaccharide is used in the color developing process after image exposure of the photographic light-sensitive material.

Examples of maltose-type oligosaccharides include maltose, cellobiose, melibiose and gentiobiose, but the present invention is not limited thereto. Further, these compounds are available as commercial products.

[0008]

【Example】

[Example 1] A commercially available color paper was used, and after imagewise exposure, the following processing steps and processing solutions were used. Treatment process Temperature Time Color development 35 ° C 45 seconds Bleaching fixing 30-36 ° C 45 seconds Washing (running water) 23-33 ° C 80 seconds Drying 75-85 ° C 60 seconds

Color developer A (replenishing 320 ml per 1 m ^{2 of} light-sensitive material) Mother liquor Replenisher Diethylenetriaminepentaacetic acid 2.0 g 2.0 g Sodium chloride 1.4 g ━━ Potassium carbonate 25.0 g 25.0 g N-ethyl-N -(Β-Methanesulfonamidoethyl) -3-methyl-4-aminoaniline sulfate 5.0 g 7.0 g anhydrous sodium sulfite 0.5 g 0.7 g Optical brightener (4,4'-diaminostilbene type) 2 0.0 g 2.5 g Diethylhydroxylamine 2.7 g 4.0 g Water was added 1.0 l 1.0 l pH (using potassium hydroxide) 10.05 10.45

Color developer B (160 ml replenishment per 1 m ^{2 of} light-sensitive material) Mother liquor Replenisher Diethylenetriaminepentaacetic acid 2.0 g 2.0 g Sodium chloride 1.4 g ━━ Potassium carbonate 25.0 g 25.0 g N-ethyl-N -(Β-Methanesulfonamidoethyl) -3-methyl-4-aminoaniline sulfate 5.0 g 9.0 g anhydrous sodium sulfite 0.5 g 0.7 g Optical brightener (4,4'-diaminostilbene type) 2 0.0g 2.5g Diethylhydroxylamine 2.7g 5.4g Add water 1.0l 1.0l pH (using potassium hydroxide) 10.05 10.65

Color developer C (160 ml replenishment per 1 m ^{2 of} light-sensitive material) Mother liquor replenisher Maltose type oligosaccharide 0.03 mol 0.06 mol Diethylenetriaminepentaacetic acid 2.0 g 2.0 g Sodium chloride 1.4 g ━━ Potassium carbonate 25 0.0 g 25.0 g anhydrous sodium sulfite 0.5 g 0.7 g N-ethyl-N- (β-methanesulfonamidoethyl) -3-methyl-4-aminoaniline sulfate 5.0 g 9.0 g Optical brightener ( 4,4′-diaminostilbene system) 2.0 g 2.5 g Water added 1.0 l 1.0 l pH (using potassium hydroxide) 10.05 10.65

Bleach-fixing solution (mother liquor and replenisher are common, replenishing 160 ml per 1 m ^{2 of} light-sensitive material) Ammonium thiosulfate 70.0 g Anhydrous sodium sulfite 17.0 g Ethylenediaminetetraacetic acid iron (III) ammonium 55.0 g Ethylenediaminetetraacetate disodium 5 Add 1.0 g water 1.0 l pH (using acetic acid) 6.0

The processing amount of color paper per day is 15 m ²
Was treated for a total of 150 m ² for 10 days. Further, a commercially available control strip was treated at the beginning and the end of the continuous treatment, and the change in minimum density (ΔDmin), the change in sensitivity (ΔLD) and the change in contrast (ΔHD-LD) were measured. For the measurement, a reflection densitometer (X-RITE3
10) was used and the results are shown in Table 1.

[0014] In the table, the blue light density is shown, the green light density is shown, and the red light density is shown.

As can be seen from the above results, when color paper is continuously processed while a large amount of color developing solution is replenished, no problem will occur. It causes various problems such as increase in brightness, decrease in sensitivity, and decrease in contrast.

However, when processing is carried out by the processing method using the color developing solution containing the maltose-type oligosaccharide of the present invention, there is no problem even if the replenishing amount of the color developing solution is reduced during continuous processing. It turns out that the processing that was done is possible.

Example 2 Using a commercially available color paper, after imagewise exposure, the following processing steps and processing solutions and Example 1 were used.
Processing was performed with the color developing solution A. The bleach-fix solution used had the same composition as in Example 1. Treatment process Temperature Time Color development 35 ° C 45 seconds Bleaching fixing 30-36 ° C 45 seconds Washing (running water) 23-33 ° C 80 seconds Drying 75-85 ° C 60 seconds

Color developer D (replenishing 320 ml per 1 m ^{2 of} light-sensitive material) Mother liquor Replenishing liquid Maltose type oligosaccharide 0.03 mol 0.045 mol Diethylenetriamine pentaacetic acid 2.0 g 2.0 g Sodium chloride 1.4 g ━━ Potassium carbonate 25 0.0 g 25.0 g anhydrous sodium sulfite 0.5 g 0.7 g N-ethyl-N- (β-methanesulfonamidoethyl) -3-methyl-4-aminoaniline sulfate 5.0 g 7.0 g Optical brightener ( 4,4′-diaminostilbene system) 2.0 g 2.5 g Water added 1.0 l 1.0 l pH (using potassium hydroxide) 10.05 10.65

The throughput of color paper is 15 m ² -1
0 days (treatment-I) and 5 m ² -30 days (treatment-II)
Of 150 m ² in total. Further, a commercially available control strip was treated at the beginning and the end of the continuous treatment, and the change in minimum density (ΔDmin), the change in sensitivity (ΔLD) and the change in contrast (ΔHD-LD) were measured. A reflection type densitometer (X-RITE310) was used for the measurement, and the results are shown in Table 2.

[0020] In the table, the blue light density is shown, the green light density is shown, and the red light density is shown.

As can be seen from the above results, when the color paper is continuously processed, no problem will occur if the daily processing amount is large, and the minimum density rises if the replenishing amount is small. It causes various problems such as decrease in sensitivity, decrease in contrast.

However, when continuous processing is performed by the processing method using the color developing solution containing the maltose-type oligosaccharide of the present invention, stable processing that does not cause any problems even if the processing amount per day is small. It turns out that is possible.

Example 3 Using a commercially available color negative film, after imagewise exposure, the following processing steps and processing solutions were used. Treatment process Temperature Time Color development 38 ℃ 3 minutes 15 seconds Bleach 35-41 ℃ 6 minutes Settling 35-41 ℃ 3 minutes 15 seconds Washing (running water) 25-35 ℃ 2 minutes 10 seconds Stability 24-41 ℃ 1 minute Dry 40-70 ℃ 1 minute

Color developer E (60 ml replenishment for each 36-shot film) Mother liquor Replenisher Anhydrous potassium carbonate 35.0 g 35.0 g Anhydrous sodium sulfite 4.0 g 4.5 g Potassium iodide 0.002 g ━━━ Odor Sodium iodide 1.3 g 0.9 g Hydroxylamine sulfate 2.0 g 3.0 g Diethylenetriaminepentaacetic acid 2.0 g 2.0 g 2-Methyl-4-N-ethyl-N-β-hydroxyethylaminoaniline sulfate 4.5 g 5.0 g Water added 1.0 l 1.0 l pH (using potassium hydroxide) 10.0 10.0

Color developer F (60 ml replenishment for each 36-shot film) Mother liquor Replenisher Maltose type oligosaccharide 0.03 mol 0.045 mol Anhydrous potassium carbonate 35.0 g 35.0 g Anhydrous sodium sulfite 4.0 g 4.5 g Potassium iodide 0.002 g ━━ Sodium bromide 1.3 g 0.9 g Diethylenetriaminepentaacetic acid 2.0 g 2.0 g 2-Methyl-4-N-ethyl-N-β-hydroxyethylaminoaniline sulfate 4.5 g 5.0 g Water added 1.0 l 1.0 l pH (using potassium hydroxide) 10.0 10.0

Bleaching solution (30 ml replenishment for each 36-shot film) Mother liquor replenishing solution Ethylenediaminetetraacetic acid Ammonium iron (III) salt 100.0 g 120.0 g Ammonium bromide 150.0 g 170.0 g Glacial acetic acid 10 ml 17 ml Water In addition 1.0 l 1.0 l pH (using aqueous ammonia) 6.0 5.7

Fixing solution (30 ml replenishment for each 36-shot film) Mother liquor Replenishing solution Ammonium thiosulfate 120.0 g 140.0 g Ethylenediaminetetraacetic acid disodium salt (dihydrate) 1.0 g 1.5 g Sodium hydrogen sulfite 12.0 g 15.0 g sodium hydroxide 2.5 g 3.0 g Water added 1.0 l 1.0 l pH (using acetic acid) 6.5 6.5

Stabilizer (49 ml replenishment for each 36-shot film) Mother liquor Replenisher Wettel [Product of Chugai Photo Chemicals Co., Ltd.] 10.0 ml 15.0 ml Formalin (37%) 5.0 ml 7.0 ml Add water 1.0l 1.0l

The daily processing amount of color negative film is 10
A total of 300 books were processed for 30 days. Further, a commercially available control strip was treated at the beginning and the end of the continuous treatment, and the change in minimum density (ΔDmin), the change in sensitivity (ΔLD) and the change in contrast (ΔHD-LD) were measured. For the measurement, a transmission densitometer (X-RITE31
0) was used and the results are shown in Table 3.

[0030] In the table, the blue light density is shown, the green light density is shown, and the red light density is shown.

As can be seen from the above results, the color developing method characterized by using the color developing solution containing the margotose oligosaccharide of the present invention is used in the case of continuously processing a color negative film. However, it can be seen that stable processing is possible without any problems.

[0032]

As described above, according to the present invention, a processing method characterized by using a color developing solution containing a malgotose type oligosaccharide in the color developing processing is a silver halide color photographic light-sensitive material. It can be seen that this is an excellent treatment method capable of performing stable treatment when continuously treating.

Claims (1)

[Claims] 1. A silver halide color photographic light-sensitive material characterized by using a color developer containing maltose type oligosaccharides in the color development processing after imagewise exposing a silver halide color photographic light-sensitive material. Processing method.