JPS62178263A - Processing method for silver halide color photosensitive material - Google Patents

Abstract

PURPOSE:To obviate the clouding and contaminating of a processing liquid and the staining of paper to be treated by using the processing liquid contg. at least the condensation dimer of a 1-hydroxyalkylidene-1,1-diphosphonic acid in place of a rinsing process in succession to bleach fixing. CONSTITUTION:A silver halide color photosensitive material is processed with the bleach fixing bath contg. at least the iron salt of an aminopolycarboxylic acid and thiosulfate after a color developing process in processing of said material. The material is subjected to processing in place of rinsing by using the processing liquid contg. at least the condensation dimer of the 1- hydroxyalkylidene-1,1-diphosphonic acid or the alkaline salt thereof in succession to said bleach fixing. The space for an automatic developing machine is thereby reduced and the clouding and contaminating of the processing liquid are eliminated; in addition, the staining of the processed paper is obviated.

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 particularly to a processing method using a processing solution in place of washing with water after bleach-fixing. It is.

(1) Conventional techniques and points to be solved Silver halide color light-sensitive materials are processed using a bleach-fix solution containing iron salts and thiosulfates of aminopolycarboxylic acids after color development, and then washed with running water. When processing silver halide color light-sensitive materials in this way, one way to stably process multiple deposits is to use a replenisher to add the necessary amount of processing solution depending on the amount of light-sensitive material to be processed. This is done as a supplementary method. In recent years, this replenishment has become smaller and the amount of processing liquid discharged after use is also small, making it possible to collect it in a container. -Power washing treatment is often 1. ), and a large amount of washing water is used. - Drainage from the IS is collected in a container after use. - K is not possible, and automatic development is used to process silver halide color light-sensitive materials. The machine requires facilities for water supply and drainage after use, and this facility limits the installation location of the automatic developing machine. Furthermore, since the washing water used in step 11 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. For this reason, various methods have been tried.
One such method is the cascade method, 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 washing water of low F, ), which has been known for a long time. . It is true that this method allows efficient washing with water,
If you are processing a photograph of a sunset as in the case of L-processing, it will serve the purpose well. It can be used as a washing method, and it has many washing tanks. In this washing tank, submerged water is added from the last washing tank, and the overflowing water 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 bleach-fix solution, which is a step before washing, is carried by the photosensitive material being processed and reaches a constant concentration in each washing tank, but even though the bleach-fix solution does not decompose, In some of the washing tanks, the composition is unbalanced and decomposition occurs, which causes deterioration of image quality.In order to perform efficient washing with as little washing water as possible, it is necessary to connect the washing tanks in a cascade. It would be better to increase the number of washing tanks, but with 1 ton of washing water used, the time it takes to stay in the washing tank until it becomes waste water increases, causing the generation of microorganisms and causing problems with the image.
At the same time, the disadvantage of increasing the number of washing tanks in order to increase washing efficiency is becoming apparent.IS also has the disadvantage of increasing the space of the automatic processor facility.

There is a need for a new method to eliminate these drawbacks, and one of the objectives has been achieved by cascading 2-341g washing tanks and processing with a small amount of processing solution that is replenished. In addition, in order to obtain a high-quality image and an image with sufficient stability, a processing solution is used, and an automatic processor with a total of fewer processing tanks reduces space and uses a small amount of processing solution. Since the amount of liquid acid discharged is reduced, it becomes possible to collect it in a container, and there is no need to install water supply and drainage for washing, and there are no restrictions on the location of the facility. In processing with such a small number of processing tanks, it is necessary to obtain high-quality images, to have sufficiently stable images, and to improve the stability of the treated water and the processing efficiency. JP-A-58-18631 describes a method for processing silver halide light-sensitive materials using a processing solution instead of washing with water for bleach-fixing.

In order to continue processing silver halide photosensitive materials efficiently and in a stable manner using an automatic processor, the processing solution used must be stable, and the organic phosphonic acids listed above were used. In this case, the processing solution that is stocked as a working solution generates white insoluble matter as the days pass, and if it is used in this state, the original effect will not be obtained, and a more stable processing solution is desired. .

2) Means for Solving the Problems The present invention relates to a method of using a processing solution instead of washing with water following a bleach-fix solution containing iron salts and thiosulfates of aminopolycarboxylic acids, and its purpose is to It is made of iron aminopolycarboxylic acid salt and thiosulfate, which allows for processing with excellent stability over long-term use, and also improves the stability of processed photographic images. The processing solution used in place of the water washing treatment subsequent to the bleach-fix solution is characterized by the use of a processing solution containing at least a condensed diisomer of l-hydroxyalkylidene-1,1-diphosphonic acid.

E) Examples The present invention will be explained in detail by Examples below, but the embodiments of the present invention are not limited thereto.

Example 1 Commercially available color paper was processed as follows using a small automatic processor.

Standard treatment process The composition of each treatment liquid used in this treatment is as follows.

Color developer diethylene glycol 15.0 g Benzyl alcohol 16, Of anhydrous sodium sulfite 2.5 g Potassium bromide 017 g Anhydrous potassium carbonate 30, Of M acid hydroxylamine 3.2 g Sodium hexamethanate 2. Og 3-Methyl-4-7minor N-ethyl-N-(β-methanesulfonamidoethyl)anline sulfate 5.5 g Sodium hydroxide 3. Og Add water l, O1 Color developer replenisher diethylene glycol 18.0 g Benzyl alcohol 20.0 g Anhydrous sodium sulfite 3.0 g Anhydrous potassium carbonate 30.0 g Hydroxylamine sulfate 4. 0 g Sodium hexamethanate 2.0 g 3-Methyl-4-amino-N-ethyl-Nl-(β-methanesulfonamidoethyl)anline sulfate 6.8 g Sodium hydroxide 4. Add 1 g water 1.0 f Bleach-fix ammonium thiosulfate 100.0 g Sodium iron ethylenediaminetetraacetate 50.0g Disodium ethylenediaminetetraacetate 3.0g Anhydrous sodium sulfite 15.0g Sodium carbonate 5. Og Add water 1. Bleach-fixing replenisher ammonium thiosulfate 120.0g Sodium iron ethylenediaminetetraacetate so,og Disodium ethylenediaminetetraacetate 4.0g Anhydrous sodium sulfite 20.0g Add water, l, Washing of a small automatic processor using OfL. Two independent washing tanks were connected in a cascade, and replenishment of color development and bleach-fixing during processing was carried out at a distance of 320 m per wash.The processing following the bleach-fixing process was as follows. I went to

(1) Washing the photosensitive material trn'''+su129. with water (previous method) (2) Washing the photosensitive material 1rn'''S0.6 with water (method of washing with water and lockstitching) (3) Photosensitive material 1ITW' A processing solution of 0.6 centimeters per sample was used (in accordance with the present invention). The composition of this processing solution was as follows.

Treatment liquid (I) 1% l-hydroxyalkylidene-1,1-diphosphone + 4.0g potassium hydroxide 1.5g water added
1.0 1 Treatment liquid (II) 1-Hydroxyalkylidene-1,l-diphosphonic acid 2,0g Integrated factory potassium hydroxide 1.5g Add water 1.0 Using the above treatment method and treatment liquid , commercially available color vapor 150
As a result of the rn' treatment, the conditions of the bleach-fix treatment solution and washing water are as follows.

Furthermore, we compared the durability of images by irradiating colored paper with constant light for 60 days in sunlight and placing it in a constant temperature and humidity chamber at 60'C and 70% humidity for 40 days.The results are as follows. It's like that. The densitometer used for concentration measurement was Macbeth HD-514.

The density of the area without an image before and after irradiation with sunlight.The density of the area without an image before and after a constant temperature and humidity test.The density of the image exposed and processed with 8-color light, green light, and red light before and after irradiation with sunlight.

Density before and after constant temperature and humidity test of images exposed and processed with blue light, green light, and red light, respectively.

BD, blue light density GD, green light density HD, red light density From these results, processing methods (1) and (2) cause no contamination of the processing solution, no image contamination, and no image deterioration. It can be seen that processing method (2) causes dyeing, image staining, and image deterioration in the processing solution, and processing method (3) and processing solution (■) of the present invention can be used in place of the conventional water washing method.

Example 2゜Treatment method (3) and treatment liquids (I) and (II) of Example 1
), the same treatment as in Example 1 was continued for 10 days, and the results are as follows.

Concentration of the area without an image before and after sunlight irradiation Concentration of the area without an image before and after constant temperature and humidity test BD, blue light density GD, green light density RD, red light density Based on these results, processing solution using processing method (3) When (II) is used, it is found that the process of the present invention is superior in that there is no clouding of the treatment liquid.

Example 3 The processing method (3) of Example 1 and the processing solution of Example 1 were used as the color developing solution (replenisher), and the following composition was used for the processing solution following the bleach-fixing process.

Treatment liquid (III) l-hydroxyargibulin-1,1-diphosphonic acid condensed diisomer 4. Og sodium hydroxide A
6.0g glacial acetic acid 6
．． Add 0g of water and make 1.0 of the exchange solution (
IV) l-Hydroxyalkypurine-1,1-diphosphonic acid fused dimer 4.0g formalin
2.0m ammonium hydroxide 2
, add OmJl water 1. OR again,
The usage history of the above-mentioned processing liquid was set to 0.4 tert per rn' of the photosensitive material, and processing method (4) was used.

Those treated with the treatment method (4), treatment liquid (m), and (IT) had no clouding of the treatment liquid, and no contamination or contamination of the treatment liquid.
There is also no contamination of the treated paper.

Patent applicant: Chugai Photo Pharmaceutical Co., Ltd. ,~knee Agent Patent Attorney Miyu Takahashi 1-1-2

Claims (1)

[Claims] Regarding the processing of silver halide color light-sensitive materials, after color development processing, processing is performed with a bleach-fix solution containing at least iron salt of aminopolycarboxylic acid and thiosulfate, and instead of subsequent washing with water, at least 1-hydroxyalkylidene-1, 1. A method for processing a silver halide color light-sensitive material, which comprises using a processing solution containing a condensed dimer of 1-diphosphonic acid or an alkali salt thereof.