SU837227A1 - Copper borane developer - Google Patents

Description

(54) COPPER BOROWWOOD REDUCER

The invention relates to the pro tectors for processing halide-silver photographic materials, namely, copper borohydride pro- tectors, and coins to be used in the chemical photographic industry,.

Known ClJ copper borohydride viv-spruce, including copper sulfate, Trilon B, boric acid, caustic soda, sodium borohydride and water in the following ratio of components, g / l:

Copper sulfate 7

Trilon B42

Boric acid 6

Caustic soda 10

Sodium borohydride 0.5

Water up to 1 l

A disadvantage of the known copper borohydride developer is its low stability, as a result of which the developer succeeds.

Call once at a cubic development.

In addition, in the process of decomposition of the developer, solid particles are formed in the whole volume, which contaminate the layers and have a detrimental effect on the quality of the photographic image.

The aim of the invention is to increase the stability of the developer.

This goal is achieved by the fact that a copper borohydride developer, including copper sulfate, Trilon B, boric acid, caustic soda, sodium borohydride, and water, additionally contains alkyltrimethylammonium chloride of the general formula:

SNS

C1

to-: to-С11з. sn. 3 where R is an aliphatic normal hydrocarbon radical containing 1 p {th 10–16 carbon atoms, aryl hydrogen chloride hydrochloroethylmethylammon about 1 carbon R 1-Cr ,, X LCR J where R is an aliphatic normal 1 st aromatic hydrogen radical containing -16 carbon atoms in the following ratio of components, g / l; Copper sulphate 2.5-50 Trilon BA, 2-84 Bornic acid 0.6-12 Corrosive nltr6-40 Alkyltrimethylammonium chloride and formula of formula (1) or alkylbis-hydroxyethylmethylammonium formula of general formula il 0,3-6 Sodium borohydride 0.1-5 VodOdo 1 l In the composition of the proposed copper rohydride developer, alkyltrimethylammonium chloride or alkylb1 chloride with hydroxyethylmethylammonium chloride are used by the industry. Alkyltrimethylammonium chloride is of the general formula (P is produced industrially in the form of aqueous, alcoholic (ethanol and isopronanolic) and hydroalcoholic solutions of 50-60% concentration as a mixture with radicals containing from 10 to 16 amine carbon. Formula O) is available in the form of alcohol (ethanol and isopropanol) solutions of 50-60% concentration as a mixture of substances with radicals containing from 10 to 16 carbon atoms. In order to clarify the effect of d1P1na rad kal on the properties of the developer, the indicated 1e substances were synthesized with the sake of SiNhl, Qill25) C, Hj5- and C, jHjj. It has been established that the length of the radical in the indicated limit is not for the stability of the physical developer — and the photographic characteristics of the material. The development process in the proposed developer is carried out with continuous remperepini. Continuous mixing of the developer with the introduction of these substances increases the stability from 0 to 50 minutes, the introduction of alkyltrimethylammonium or alkylbishydroxyethylmethylammonium non-dislocation beta increases the stability of the developer from 10 to 4060m, and the combined use of nr-intermittent peremegtivan and the above substances increases the stability of hydride hydride, and the sodium boride hydride. -7 h (stirring helps equalize the pH value in the whole volume, which is very important for borohydride solutions, as well as dissolution due to ca. techniques, are atmospheric oxygen in small amount in voznikayu1sih chastip solution of copper having catalytic activity). At the same time, not only the stability of the projection increases, but also the photographic characteristics of the developed image are improved. The manufacturer is prepared by mixing two solutions, including the following components; Solution 1, Copper sulphate Trilon B Boric acid Caustic soda Each of the above substances is dissolved separately in a specific volume of water, after which these solutions are mixed sequentially. The total volume of the solution should not exceed 800 ml. A certain amount of alkyltrimethylammonium chloride or alkylbishydroxyethylmethylammonium chloride is introduced into the solution prepared in this way. The concentration of substances in the solution may vary within the limits of the range, namely, g: Copper sulphate 2.5-50 Trilon B4,2-84 Boric acid 0,6-12 Caustic soda 6-40 Chloride alkyltrimethyl moni or chloride alkyl bishydroxyethylmethylammonium in terms of pure BeuiecTBO0.3-6 Solution I, B 100 ml of an I M solution of caustic reward are dissolved from (y, up to 5 g of sodium borohydride. Solutions 1 and II are mixed before use, the volume is brought to 1000 ml (pH of the manufacturer is 12.5 12.8, the lower permissible limit of RP 10.5) and exhibit halide layers with a reduced silver content in the layer (emulsion МЗ-3 с silver (0.4 g / m). The density of the image after the chemical manifestation of such materials is 0.3. Example 1. The developer in the form of two solutions 1 and H is prepared as described above without adding the proposed substances. Solution 1. Copper sulphate Trilon B Boric acid Caustic soda P. g solution of sodium borohydride in 100 ml of 1 M sodium hydroxide solution (4 g of NaOH), Solutions 1 and I are mixed, the volume is brought to 1000 ml and in the resulting developer 8 min film {emulsion МЗ-3, silver pump 0.4 g / m), pre-exposed, chemically developed and bleached yu The results are shown in Table. Example 2; All of the example, however, 2 ml of a 55% alcohol solution (isopropyl alcohol alkyltrimethylammonium chloride (1.2 g) and a film develops in it are additionally introduced into the composition of the developer. The results are shown in Table 2. Example 3 The whole of example 2, however, the film was shown to be formed 3 hours after the preparation of the developer. The results are shown in Table 4. Example 4. However, the film was shown to form the film 5 hours after the preparation of the gel. The results are shown in table. Example 5. Projector Prepared according to Example 1, however, a 2 m 55% alcoholic solution of 1.2 g of alkyl bishydroxyethylmethylammonium chloride was additionally introduced into the formulation of the alcohol and immediately showed a film. The results are shown in Table 276. Example 6. The developer was prepared from solutions 1 I. I. Solution 1. Copper sulphate 2.5 g Trilon B 4.2 g Borna acid 0.6 g Sodium hydroxide 2 g Solution P. O, 1 g sodium borohydride (NaBHj) in 100 ml of 1 M sodium hydroxide solution (4 g of NaOH). Solutions 1 and 1 are mixed, the volume is made up to 1000 ml and a film is developed at 20 ° C at 6 ° C (em psi MZ-3, pump silver 0.4 g / m j pre-exposed, developability and chemically bleached. The results are shown in Table. Example 7. All of Example 6, however, additionally, a diluent of 0.5 ml of a 55% alcoholic solution of alkyltrimethylammonium chloride (0.3 g / l) was added to the formulation of the developer and immediately after preparation of the developer a film was developed in it. The results are shown in Table. Example 8. All of Example 6, however, 0.5 ml of a 55% alcoholic solution (0.3 g / l) of alkyl bis-hydroxyethylmethylammonium chloride was additionally added to the composition of the developer and the film immediately developed. The results are shown in Table. Example 9. Producer prepared from solutions 1 and I, solution 1, g / l Copper sulphate 50 Trilon B84 Borna acid 2, Caustic soda 36 Solution P. 5 g sodium borohydride 100 ml of 1 M sodium hydroxide solution (4 g NaOH). The working solution is obtained by pouring solutions 1 and P and bringing the volume to 1000 ml. In the resulting solution, the conduct is carried out as indicated in examples 1,. The stability of such a product is small (8 min). Example 10. All as in the example, however, 10 ml of a 55% pyrite solution of alkyl (methylammonium chloride (f6 g / l)) is additionally introduced into the composition of the developer, after which the film is drawn. The results are given in table. Example 11. All of Example 0, however, instead of alkyltriethylammonium chloride, the composition of the engineer included 78 dt 0 ml of a 55% alcoholic solution of chloride alkyl bishydroxnethyl ™ methylammonium (6 gUL). In the indicated npoHBH gel, the film was shown to appear. The results are shown in Table. Example 12. All of Example 2, only using alkttrimethylammonium chloride, in which the radical contains 10 upzarod atoms. The results are shown in Table. Example 13. All in Example 2, but using alkyltrimeshpammonium chloride, in which the radical CoC follows from. In the case of examples and data, the introduction of ajncn.aTpHMeT.mjaHMOHH.u chloride or alkbis bishydroxyethylmethylammonium chloride into the copper borohydride developer leads to an increase in the stability of the developer, which makes it possible to use it for the machining of halogen-cerebral materials to increase the stability of the developer, which allows you to use it for the processing of halogen-cerebral materials with the sweep of sweeping sweets, which is used by the application.

Claims (1)

Claims of the invention: Copper borohydride developer, including copper sulfate, Trilon B, boric acid, caustic soda, sodium borohydride and water, O tl and h and y and the fact that, in order to increase the stability of the developer, it additionally contains alkyltrimethylammonium chloride of the general formula n -V 3 B-SNZ Cr I CH3 372278 holds 12 carbon atoms. The results are shown in Table. Example 14. Everything in the example is 2, only kporid alkyltri-5 methyl ammonium is used, in which the radical contains 14 carbon atoms. The results are shown in Table. Example 15, All in Example 2, only using the acylmonium apyl trime chloride, in which the radical contains "τ" of carbon atoms. The results are shown in Table. Note. In examples 1-13, the development process is carried out with mixing 15imii.