JPH04204648A - Method for processing silver halide color photographic sensitive material - Google Patents

Abstract

PURPOSE:To enhance stability of photographic image quality without using a large amount of rinsing water by processing the imagewise exposed photo graphic sensitive material with a fixing solution and a bleach-fixing solution and then processing it with a processing solution containing 2-aminobenzo thiazole in place of rinsing with water. CONSTITUTION:The exposed photographic sensitive material is processed with the fixing solution comprising thiosulfate, a processing solution to be used following the fixing instead of rinsing, and the bleach-fixing solution comprising the ferric salt of aminopolycarboxylic acid and thiosulfate, and the processing solution containing the 2-aminobenzothiazole, to be used in place of rinsing, thus permitting processing superior in stability in the case of using for a long time to be executed and the photographic image obtained by this processing to be enhanced in stability.

Description

[Detailed description of the invention]

(a) Industrial Application Field The present invention relates to a method for processing silver halide color light-sensitive materials, and more specifically, a processing method using a processing solution instead of washing with water after fixing, and washing with water after bleach-fixing. The present invention relates to a processing method that uses a processing liquid instead of. (b) Conventional technology Silver halide color light-sensitive materials are processed using a bleaching solution containing an iron salt of aminopolycarboxylic acid and a halogen salt after color development, followed by fixing containing a thiosulfate. After processing with a bleach-fixing solution containing an iron salt and thiosulfate of aminopolycarboxylic acid and washing with running water, When processing silver halide color light-sensitive materials in this manner, a method for stably processing a large amount of light-sensitive materials is to replenish the necessary amount of processing solution as a replenisher depending on the amount of light-sensitive material to be processed. There is. In recent years, the amount of replenishment has become small, and the amount of processing liquid discharged after use is also small, so it has become possible to collect it in a container. On the other hand, the washing process uses a large amount of water, and because it uses a large amount of washing water, it is impossible to collect the waste water after use into a container. The developing machine requires facilities for water supply and drainage after use for washing, and this facility limits the installation location of the automatic developing machine. Furthermore, since the large amount of washing water used is used at a water temperature suitable for washing, a large amount of fuel is required to obtain the water at the appropriate temperature, which is one of the causes of increased costs. Various methods have been tried for this purpose, one of which is a cascade system in which many washing tanks are used independently and the washing water flows in the opposite direction to the flow of the photosensitive material, in order to perform washing efficiently with a small amount of washing water. The method has been known for a long time. It is true that this method allows for efficient washing with water, and it satisfies the purpose of processing small quantities of photographs, such as hand-processing. Even when automatic processors are used today to continuously process large amounts of photosensitive materials, automatic processors can be used as a washing method, and many washing tanks are now provided. In this washing tank, washing water is added from the last washing tank, and the overflow is sent to the previous tank in order.The photosensitive material is sent in the opposite direction to this flow, and the photosensitive material is sequentially washed with new water to complete the process. It's going to happen. When using such an automatic processor, the fixing solution or bleach-fixing solution, which is the step before washing, is carried by the photosensitive material being processed and reaches a constant temperature in each washing tank, but it does not decompose. Even with the fixing solution or bleach-fixing solution, in many washing tanks, the composition of some liquids becomes unbalanced and decomposition occurs, which causes deterioration of image quality. In order to do this, you can increase the number of washing tanks connected in a cascade, but this will increase the amount of time the washing water remains in the washing tank until it is used and becomes waste water, which may cause the generation of microorganisms that may adhere to the image. At the same time, increasing the number of washing tanks in order to increase the efficiency of water washing has the disadvantage of increasing the space of the automatic processor facility. (Old Points to be Solved) A new method is required to eliminate these drawbacks, and this method involves cascading two or three washing tanks and treating them with a small amount of replenishing processing solution. One of the objectives has been achieved, and furthermore, in order to obtain images with sufficient quality and image stability, we use a processing solution and reduce space by using an automatic developing machine with a total of fewer processing tanks. By using a small amount of processing liquid, the amount of liquid discharged is reduced, making it possible to collect it in a container, eliminating the need for water supply and drainage installation for washing, and eliminating restrictions on facility location. Processing with such a small number of washing tanks In order to obtain high-quality images, it is necessary to have sufficient stability of these images, and to improve the stability of treated water and processing efficiency.Silver halide photosensitive materials can be efficiently produced in large quantities using automatic processors. In order to stably continue processing, the processing liquid used must be stable, and a highly stable processing method is desired. , a method in which a processing solution is used instead of a washing treatment followed by a fixing solution containing a thiosulfate, and a method in which a processing solution is used instead of a washing treatment followed by a bleach-fixing solution containing an iron salt of an aminopolycarboxylic acid and a thiosulfate. The purpose of this technology is to provide processing with excellent stability over long-term use, and to improve the stability of processed photographic images. A processing solution used instead of washing with water followed by a fixing solution containing 2-aminobenzothiazole, followed by a bleach-fixing solution containing iron salt and thiosulfate of aminopolycarboxylic acid (the processing solution used instead of washing with water contains 2-aminobenzothiazole) The present invention is characterized by using a processing liquid.

Example 1 A commercially available color film was processed as follows using a small automatic processor. Processing process Color developer Anhydrous sodium sulfite 3.5g Anhydrous potassium carbonate 35. oggated potassium
1.2g Hydroxylamine sulfate 2.5g Diethylenetriaminepentaacetic acid 1.0g Sodium hydroxide
l, add 0g water 1.
Off color developer replenisher Anhydrous sodium sulfite 4.0g Anhydrous potassium carbonate 40.0g Potassium bromide
1.0g hydroxylamine sulfate 3. Og diethylenetriaminepentaacetic acid 1.5g sodium hydroxide
l, add 0g water 1. O
R bleaching solution ammonium bromide 140.0g ethylenediamine 44-bar iron ammoumeum 90. og ethylenediaminetetraacetic acid Add 5.0g water
1. OI2 Bleach Replenisher Ammonium Bromide 170.0g Ethylenedi7minetetraacetate Iron Ammonium 110. og ethylenediaminetetraacetic acid 8.0g Hydroxylic acid
5, add Q g water 1.0
β fixer Ammonium thiosulfate 140.0g Sodium bisulfite 14.0g Aqueous ammonia
Add 5.0g water 1. OI2 Fixer Replenisher Ammonium Thiosulfate 170.0g Sodium Bisulfite 17.0g Aqueous Ammonia 1
Add 0.0g water 1.0 & stabilized formalin 5.0+n water
i,o! l Stable replenisher solution Use the above stabilizing solution. During processing, the replenishment amount of color development is 38+n per 35m+w film. The replenishment amount for bleaching, fixing, and stabilization is 35r.
RII+, 31n per film. The treatment following the fixing treatment was performed as follows. (l135++c+++ 620m of water washing per film (previous method) f2) 35+n+n 31m of water washing per 1 film 6 (
Water comparison method) (3) 31 m of processing liquid was used for one 35 mm film (invention) The composition of this processing liquid was as follows. Treatment liquid 2-aminobenzothiazole Add 0.2g water
1.0! As a result of processing 200 sheets using the above-mentioned processing method and processing liquid, the conditions of the processing liquid and washing water after the fixing process are as follows. Furthermore, materials processed from color film that were exposed to constant light were exposed to sunlight and placed in a constant temperature and humidity chamber at a temperature of 60°C and humidity of 70%, and the results of comparing the durability of the images were as follows. . The densitometer used for concentration measurement is
It is 310RT. Furthermore, BD is the blue light density, GD is the blue light density, and RD is the red light density. There is no deterioration of the processed image, but in processing method (2), the condition of the processing liquid is poor and there is also image staining and image deterioration, so it can be seen that the present invention (3) can be used in place of the conventional water washing method. .

Example 2 Commercially available color paper was processed as follows using a small automatic processor. Standard treatment step The composition of each treatment liquid used in this treatment is as follows. Color developer diethylene glycol 15.0g benzine alcohol 16.0g anhydrous sodium sulfite
2.5g potassium bromide 0.7g anhydrous potassium carbonate 30. og hydroxylamine sulfate 32g Sodium hexamethanate 2.0g 3-methyl-4
-amino-N-ethyl-N-1-methanesulfonamidoethyl)anline sulfate 5. Add 5g sodium hydroxide 3.0g water
1.0ρ Color developer replenisher diethylene glycol 18.0g Benzine alcohol 20.0g Anhydrous sodium sulfite
3.0g anhydrous potassium carbonate 30.0g hydroxylamine sulfate 4.0g sodium hexamethanate 2.0g sodium hydroxide 4.1
g Add water 10! Bleach solution Ammonium thiosulfate 100.0g Anhydrous sodium sulfite 15.0g Sodium carbonate
Add 5.0g water 1. Op bleach-fix replenisher Ammonium thiosulfate i20.0g Anhydrous sodium sulfite 20.0g Add water
1. During OI2 processing, the replenishment amount for both color development and bleach-fixing was 320 m/rrf. Processing subsequent to the bleach-fixing process was performed as follows. (1) Washing at a rate of 12! per meter of photosensitive material (previous method) (2) Washing at 906°C per meter of photosensitive material (comparative method) (3) Using 0.642 processing solution per rn' of photosensitive material (This invention) The composition of this treatment liquid is as follows: Treatment liquid 2-aminobenzothiazole 0.1g Nitrilotriacetic acid 0.2g Potassium hydroxide
Add 0.1 g of water 1.02 Using the above processing method and processing solution, the results of processing for 150 rn'' are as follows: The conditions of the processing solution and washing water after bleach-fixing are as follows. The results of comparing the durability of the image by exposing the processed color paper to sunlight and placing it in a constant temperature and humidity chamber at a temperature of 60℃ and humidity of 70% are as follows.Density measurement The concentration meter used was X-RITE310R.
It is T. The density before and after the test of the non-image area, respectively, and the density before and after the test of the image exposed and processed with blue light, green light, and red light. In addition, BD is blue light density, GD is blue light density, and RD is red light density. From this result, processing method +11. +31 is in good condition with both washing water and processing liquid, and there is no image stain.
There is also no image deterioration, but the processing method (2)
It can be seen that the condition of the processing liquid is poor, and there is also image staining and image deterioration, and that the method (3) of the present invention can be used in place of the conventional water washing method. (F) Effects of the Invention As described above, according to the present invention, in the processing of silver halide color light-sensitive materials, 2-aminobenzothiazole is contained instead of washing with water after processing with a fixer and a bleach-fixer. By using a treatment liquid for treatment, there is no need to use a large amount of washing water, and since no washing water is used, there is no need to install water supply and drainage, and there are no restrictions on facility location, which is highly effective.

Claims (2)

[Claims] (1) Regarding the processing of silver halide color light-sensitive materials, after color development processing, processing is performed with a fixing solution containing thiosulfate, and instead of the subsequent washing with water, a processing solution containing 2-aminobenzothiazole is used. Processing method for silver halide color light-sensitive materials (2) Regarding the processing of silver halide color light-sensitive materials, after color development processing, instead of processing with a bleach-fix solution containing iron salt and thiosulfate of aminopolycarboxylic acid and subsequent washing with water,
- A method for processing silver halide color light-sensitive materials characterized by using a processing solution containing aminobenzothiazole