SU1105849A1 - Method of producing pictures on silver-halide photographic material - Google Patents

Abstract

METHOD FOR OBTAINING IMAGES ON silver halide photographic material, consisting of a transparent substrate on which successively deposited red-sensitive emulsion layer made of an emulsion sensitized hydrochloric the red range of the spectrum and containing a blue color-forming component, and the blue-sensitive emulsion layer by exposure radiation material in the red and blue areas of the spectrum and chemical photographic processing of the material, characterized in that, g in order to increase the cTeneiiH section The amplitude and phase structures, increasing the spatial resolution and simplification of the process, use a material whose photographic material is the lower red layer, which is made of an emulsion with a microcrystal size of 0.050, 30 µm and a volume concentration of silver halide in a dry emulsion layer of 2.8-15, 4%, and the upper syneSP sensitive layer is made of the same initial emulsion with a size of micro crystals and equal to the size of micro CO of the lower layer crystals, but with a volume concentration of halide with silver is 1.8-6.7 times higher than in the lower layer, with a yellow filter layer between the redsensitive and bluesensitive emulsion layers or there is a yellow filter dye in the redsensitive layer, and at the stage of chemical-photographic processing the material is sequentially processed in flower of wittel, fixer and bleach.

Description

The invention relates to methods for obtaining images on halogen-silver photographic materials and can be used in various fields of technology that use systems for recording and processing optical information, in particular for producing amplitude-phase masks used for optical coherent filtering of an image. The closest to the proposed technical essence is a method of obtaining images on a photographic material consisting of a transparent substrate, on which a red-sensitive emulsion layer made of an emulsion sensitized to the red spectrum and containing a blue color-forming component, a green-sensitive and blue-sensitive emulsion, are consistently applied. layers containing respectively purple and yellow color forming components by exposing the material from radiation in the red and blue regions of the spectrum and chemical-photographic processing of the material 11. In this method, Kodak hrome-11 colored reversible material is used, but the composition of the layers of this material is not disclosed in detail. The conditions of chemical photographic processing of the material after the exposure operation are also not disclosed. However, indicating that the material is processed according to the standard Hbtx color for reversible films, it can be concluded that chemical-photographic processing consists of the usual operations of black-and-white appearance, illumination, color appearance, selection, and fixation. The photo material is used to obtain a separate recording of the amplitude and phase structures on it. The recording on this material is carried out with the help of two very different spectral composition of radiation: blue and red. The image is read in one red light. The advantage of this method is that the image is obtained on available photographic material with standard processing for a color reversible film with satisfactory recording quality. When using this method of image acquisition, several sources of faults were identified that did not find compensation, namely: the blue and green sensitive layers are partially exposed to red rays, red-light. A strong layer is partially exposed to blue and green rays. The developed image, in addition to absorbing red laser radiation in a blue-colored red sensitive layer. It also has absorption in a purplish colored green sensitive layer. The relief of the image is poorly controlled and depends on the spatial frequency. The film has a low resolution of 96-135 lines / mm. The method of chemical-photographic processing does not provide a high-resolution phase structure, is long and multistage. Thus, the disadvantages of this method are the inadequate degree of separation of the amplitude and phase structures, low spatial resolution, the duration of the process. The aim of the invention is to increase the degree of separation of the amplitude and phase structures, increase the spatial resolution and simplify the process. This goal is achieved by the fact that according to the method of obtaining images on a silver halogen photographic material consisting of a transparent substrate, on which a red-sensitive emulsion layer is successively applied, made of an emulsion sensitized to the red spectrum and containing a blue color-forming component, and blue sensory - emulsion layer, by exposing the material to radiation in the red and blue regions of the spectrum and chemical-photographic processing of the material, as Twa photographic material uses a material whose lower red-sensitive layer is made of an emulsion with a microcrystal size of 0.05–0.30 µm and a volume concentration of silver halide in a dry emulsion layer of 2.8–15.4%, and the upper blue-sensitive layer is made of same initial emulsion with a microcrystal size equal to the size of the microcrystals of the lower layer, but with a volume concentration of silver halide of 1.8–6.7 times higher than in the lower layer, and between the red-sensitive and blue-sensitive emulsion layers there is a yellow filter layer, or in the red-sensitive layer there is a yellow filter dye, and at the chemical-photographic processing stage, the material is sequentially processed in a color promoter, fixer and bleach. The photographic material according to the invention is a transparent substrate on which a red-sensitive and syn-sensitive emulsion layers are applied. A yellow filter layer of colloidal silver may be located between the emulsion layers, or a yellow filter dye may be introduced into the lower red-sensitive emulsion layer. It is important that the same initial emulsion with an average size of micro crystals (dqj.) 0.05–0.30 µm is used in each specific sample of the photographic material in the manufacture of emulsion layers, but the volume concentration of silver halide in the dry top layer should be 1.8-6.7 times higher than in the lower, with a volume concentration of silver halide in the lower layer 2.8-13.4%. A variety of photoemulsions with different compositions of the solid phase and with different synthesis conditions can be used to make photomaterial. When sensitizing the lower layer to red light, a variety of dyes can be used. Virtually any known blue color-forming components and yellow filter dyes can be introduced into the emulsion of the red-sensitive layer. These factors (formulations and conditions for the synthesis of the emulsions used, sensitizers, color-soluble components and filter dyes) are not essential for achieving the intended purpose of the invention. The chemical and photographic processing of the photographic material after the exposure operation consists in processing the material in a color screen, soot and bleach. Amplitude information is recorded by exposing the resulting photographic material to red light. In this case, an image is formed in the lower red-sensitive layer. Phase information is recorded by exposing the resulting photographic material to blue light. An image is formed in the upper blue-sensitive layer. Recording is possible with an incandescent lamp, shielded by zonal light filters — blue with a transmission band of 400-480 nm and red with transmission in a nanometer zone, or lasers with radiation in the blue and red zones, helium-cadmium spectrum with L 442 nm and helium-neon s nm. The image in the lower emulsion layer consists of a blue dye formed as a result of the interaction of the blue component during the development process. The image in the upper emulsion layer consists of a phase relief formed by bleaching. Reading of the obtained image is carried out by radiation of a helium neon laser with L 633 nm., The image in the lower layer affects the amplitude of the radiation, the images in the upper layer - on the phase of the radiation. PRI me R 1. Bromide-silver photographic emulsion (content 0.6 mol.%) Manufactured according to the t21 process rules with an average size of AgHal microcrystals of 0.05 µm is obtained by the method of two-jet fractional emulsification, washing by decantation (composition of the solid phase: bromine, iodine, silver) without chemical maturation, with 8iO, 2, is made up to pBr of 5.0 ± 0.1 with potassium bromide, diluted 2 times with a 5% solution of gelatin used for the manufacture of an emulsion. Here, j of the emulsion is 3.12. At this emulsion, at 48i1 ° C, the following additives are introduced sequentially with stirring: Sodium salt of 3-ethyl 3-sulphopropyl-4-keto-4-phenyl-5/3-f-sulfopropsh-1-4 -phenyl-5-methyl-thiazolinylidene -2-ethylidene- (structure S

nor A) thiazolinothiazolocyanine betaine in the amount of 15.3610 m / m AgHal, which is sensitive to emulsion to radiation in the red zone of the spectrum of 680 them;

The blue component of the structure (1) -N-octadecyl-3, 5-dicarboxyanide 1, 2 hydroxynaphthoic acid in the amount of 1.14-10 m / m AgHal;

The yellow pharmaceutical dye of the structure (II) -3,3-diethylthiazolinocarbocyanin para tolusulphonate in the amount of 0.78 AgHal.

The emulsion thus prepared serves to form the bottom counting from the substrate of the emulsion layer,

The same bromide-silver on a photographic emulsion, taken after the operation of bringing the pBr values to p 1.56, serves to form the upper emulsion layer, the spectral sensitivity of which is in the zone of its own sensitivity of the silver halide.

58496

namely, up to a 500 nm. Emulsion layers with a thickness of each 10 µm are sequentially poured onto the glass substrate. In order to improve surface wettability in the emulsion, a wetting agent (8.4% solution of CB-104) is added at the rate of 12 ml per 1000 g of emulsion and 2% water-alcohol solution of tanner -801

10 in the amount of 45 ml per 1000 g of the emulsion and plasticizer (10% solution of thymol and glycerin in the ratio 1: 1) in the amount of 12 ml per 1000 g of the emulsion.

15 A photographic material thus produced after drying can be used to record information. The amplitude structure is recorded by continuous radiation of a helium20 neon laser LG-36 nm, and the phase structure is recorded by continuous radiation of a helium-cadmium laser with nm, LG-31.

Chemical-photographic processing

25 photographic materials are carried out in the sequence presented in Table 1.

Table 1

Color display

Rinsing

in running water

Fixing

Rinsing in running water

Whitening

Rinsing at 5%

Trilon B solution

Rinsing in running water Compositions for treating solutions jg

20 ± 0.5

15i5

20 ± 0.5

1515 20 ± 0.5

2010.5 15 ± 5 are presented in table. 2. Table. Composition of solutions Amount, g Color producer Hydroxilamide, sulphate1, 2 Para-amino ethaniline, sulfate2.3 Sodium sulfate 2.0 Potash60.0 Potassium bromide 2.0 Trilon B2 2.0 Distilled water Up to 1 l Fixer Hyposulfite240.0 Sodium sulfite 15, 0 Acetic acid, ice 16.0 Distilled water Up to 1 l Bleach Ferric chloride 50.0 Distilled water Up to 1 l After drying the treated photomaterial, the amplitude and phase structures are read by continuous radiation of a helium-neon laser nm, LH-36 . Example 2: A photographic material is prepared analogously to the example, but the lower red-sensitive emulsion layer contains an emulsion, 24, which is obtained by diluting the original bromide-silver emulsion with a 5% gelatin solution 4 times. EXAMPLE 3 A photographic material is prepared analogously to the example, but the lower red-sensitive emulsion layer contains an emulsion with it down 5 12.48, which is obtained by diluting the original bromide-silver emulsion with a 5% gelatin solution by a factor of 8. 1 2 P p and M e p.4. A photographic material is prepared as in Example 1, in order to ensure that the blue component of (l) -N- (3-sulfob-methnpoctadecylamino) -anilide-1-hydroxy-2 is introduced into the lower emulsion layer instead of the blue component of structure (I). - naphthoic acid in the amount of 1.38-10 m / m AgHal, without changing the conditions for introducing the components. EXAMPLE 5 A photographic material is prepared analogously to Example 1, except that the upper blue-sensitive emulsion layer is formed from the same photographic emulsion, taken after the finishing operation, but when it is stirred, dye iodo-ethyl 2 is additionally introduced α-p-dimethylaminosthenylpyridine in the amount of 63-10 m / m AgHal, which is sensitive to the emulsion nm, with a sensitization zone of up to 560-570 nm. The structures were recorded and processed in the same way as in Example 4. EXAMPLE 6 Photographic material was prepared as in Example 2, but the yellow filter dye was not introduced into the emulsion used to form the lower emulsion layer, and the red emulsion layer was applied additionally, a filter layer consisting AND dispersed in 4% gelatinous solution of yellow colloidal silver of the SPZ, and the silver content is 4–7 g per 1 kg of gelatinous solution. The thickness of the filter layer is. 3 microns. Exposure and treatment are carried out as in Example 1. EXAMPLE 7 Bromide-silver ammonia photographic emulsion is manufactured according to process regulations 41 with an average size of AgHal microcrystals of about 0.1 µm, produced by the method of instantaneous single-jet emulsification, extract The solid phase is separated by separation (the composition of the solid phase is bromine, iodine, cadmium, silver), dispersion and chemical ripening are carried out, and cp 0.28 is taken after the chemical ripening operation. The emulsion is diluted with a 5% gelatin solution to P 1.0, this emulsion serves to form the upper emulsion layer of the photographic material. 91 For the formation of the lower red-sensitive emulsion layer, the emulsion is diluted with a 5% solution of gelatin or 2.0, i.e. at 2 times, the same additives and under the same conditions (pH, pBr, t) as in Example 1, but are introduced into this emulsion at 46 ± 1C under the same conditions with stirring. C 3-diethyl-45-diphenyl-4-keto-5 (3-ethyl-4 5-diphenyl-thiazolinylidene-2-ethylidene) thiazolinothiazolocyanine ethyl sulfate with the structure B (nm) s in the amount of 23.04-10 m / m AgHal s is used as a sensitizing dye. sensitization zone up to 700 nm. These emulsions serve to form a photographic material, the thickness of the lower and upper layers being 12 microns. Exposure, chemical-photographic processing, composition of the developing solutions, reading of the recorded structures is also carried out analogously to example 1. EXAMPLE; 8. Bromide-silver ammonia photographic emulsion, manufactured according to technological regulation 15 with an average size of AgHal microcrystals of the order of 0.15 - 0.20 µm, is obtained by single-jet instantaneous emulsification, the solid phase is separated by separation (the composition of the solid phase is bromine, iodine, silver ), dispersion and chemical maturation are performed and taken with a pH of 5.1 ± 0.2 and pBr of 2.8 ± 0.2, 04. This emulsion serves to form the upper emulsion layer of the proposed photographic material. To form the lower red-sensitive emulsion layer, the emulsion is diluted with a 2.8% gelatin solution (the same as in the preparation of the emulsion) 4 times to p 4.16. In the emulsion for the red-sensitive layer at 46 ± 1 ° C, the same additives are introduced successively with stirring under the same conditions as in measure 1, except for the emulsion sensitizing agent dye-pyridine salt 3,3-di-f-cyl-propyl -9-ethyl-4,5,4 5 dibenzo-acarbocyanin betaine- (building B) in the amount of 11.52 - 10 m / m AgHal with a sensitization zone of up to 720 nm. 9 These emulsions form the photo material. The thickness of the lower and upper emulsion layers is 15 microns. Exposure and reading of the recorded structures is carried out analogously to example 1. Chemical-photographic processing of photographic material and the composition of the processing solutions is similar to example 1 except for the composition of the bleaching solution: Red roof to salt (KRe (Sy)), g 30.0 Potassium bromide, g 15, 0 Distilled water, l Up to 1 PRI me R 9. Bromide-silver ammonia photographic emulsion, made according to the technological regulation C63 with d 0.3 µm, is obtained by the single-jet emulsification method, the solid phase is separated by separation phase was carried out, dispersed, surfactant was injected (CB-104-4% solution), 2nd dispersion and chemical maturation were carried out and taken after the chemical maturation operation with, 9 ± 0.1 and pBr 2.55 ± 0.1 and with p of 0.10. The emulsion is diluted with a 2.1% solution of the same gelatin as in the preparation of the emulsion to, 0, this emulsion serves to form the upper blue emulsion layer of the photographic material, whose spectral sensitivity is in the intrinsic sensitivity zone of AgHal, namely, doS.480 nm, in order to form the lower emulsion lo emulsion was diluted with 2.1% aqueous gelatin-solution, 0; 2 times. At the emulsion at 46 ± 1 ° C, the same additives and under the same conditions as in Example 2 are introduced sequentially under stirring, and 3,3-di-sulphopropyl-9-ethyl-4 is used as a sensitizing dye. 5, 4, 5-di-benzothiocarbocyanin betaine (structure G) in an amount of 23.04 AgHal with a sensitization zone of up to 680. The thickness of the emulsion layers is 14 microns. These emulsions serve to form the photographic material. Exposure and reading of the recorded structures are carried out analogously to example 2. Chemical-photographic processing of photographic material and the composition of the treatment solutions is similar to example 1 except for the composition of the bleaching solution: Red roof to salt (Kz Fe (CN) e), g 30.0 Potassium bromide, g 15 , 0 Distilled water, l To 1

10.4

0.05

5.6 0.05

2.8 0.05

10.4 0.05

10.4 0.05

10.4 0.05

15.4 0.10

8.0 0.20.

15.4 0.30 11

+ +

+ +

Continued table. 3

0.05 18.8 0.05 18.8 0.05 18.8 12 and an additional stabilization operation for 10 minutes in a solution of the following composition: Bromide N, N, 4.4 dipyridylium, h0.2 Water distalshirovannaya, l To 1 Data on the composition of the emulsion layers obtained in examples 1 to 9 are summarized in table. 3. Table 3 C is the volume concentration of the halogenium layer, calculated by the formula g H-2, 76 j O. according to C8. Samples of photographic materials according to examples 1-9 are exposed in a FSR741 sensitometer for a violet light filter ... FS-1 with a transmission zone and a red filter, a CS-10 with a transmission from nm and a green filter CS-2 with a transmission band of 500 - 600 nm . Sensitograms are processed according to the scheme described in Table. 1. The obtained densitograms have a blue (for components of structure J) and blue-green coloring (for components of structure P) of the red-sensitive layer and give a phase relief on the blue-sensitive layer. The evaluation of the obtained densitograms is carried out in the light of an LG-36 helium-neon laser with nm. Optical density is measured in directional light, as well as the relative phase shift of both sensitograms. Carry

Continued table. The 3 ribs in the dry emulsion body phase shift are estimated from the shift of the interference grating formed by the interaction of two transonic light beams, with the passage of the densitogram floor and the floor surrounding the sensitogram. The shear is estimated in phase angle values. The lattice phase shift for the period corresponds to the angle T. The resolution (R) of the photographic material is also estimated when exposed according to the standard procedure C in blue and red light (GOST 281968) on the RP-2M1 resolvometer for the samples according to examples 7-9 and when exposed to a laser resolver with nm and nm for the samples in examples 1 - 6. The results of the test samples are presented in Table. 4. 17110584 As follows from the table. 4, the proposed method of obtaining images makes it possible to increase the degree of separation of the amplitude and phase structures, namely, the phase shift in the blue-sensitive layer is 3i / 2, and in the red-sensitive layer is zero, while Dnia (the blue-colored layer is zero and g (s (. The redsensitive layer is 2.5). The data of Table 4 for examples 7 and 8 indicate that the images obtained by the proposed method have significantly 18. greater spatial resolution, which is a consequence of the formation of phase x structures in the bleached image that does not have a noticeable frequency drop. The absence of mutual influence of the structures allows a more precise control of the filter manufacturing process. In addition, according to the proposed method, the process of chemical-photographic processing of the material after exposure is simpler because it does not contain black and white operations and flare operations.

Claims (1)

METHOD FOR PRODUCING IMAGES ON A HALOGEN-SILVER PHOTO MATERIAL, consisting of a transparent substrate, on which a red-sensitive emulsion layer is sequentially applied, made of an emulsion that is sensitized to the red spectrum and contains a blue color-forming component by emitting and blue areas of the spectrum and chemical photographic processing of the material, characterized in that, in order to increase the degree of separation amplitude and phase structures, increasing spatial resolution and simplifying the process, as a photographic material use a material whose lower photosensitive layer is made of an emulsion with a microcrystal size of 0.050.30 μm and a volume concentration of silver halide in a dry emulsion layer of 2.8-15, 4%, and the upper blue sensitive layer is made of the same initial emulsion with a microcrystal size equal to the microcrystal size of the lower layer, but with a volume The first silver halide concentration is 1.8–6.7 times higher than in the lower layer; moreover, there is a yellow filter layer between the photosensitive and blue-sensitive emulsion layers or a yellow filter dye in the red-sensitive layer, and at the stage of chemical-photographic processing the material is sequentially processed in a color developer, fixer and bleach.