SU402244A1 - METHOD OF MODIFICATION OF VESICULAR IMAGES - Google Patents

Description

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This invention relates to a method for modifying vesicular images.

Methods are known to take out vesicles in a thermoplastic binder of a hydrophobic polymer in which a photosensitive substance is dispersed, decomposing during photolysis with evolution of gas.

Thermal vesicles can be taken, for example, using a relief image or laser beams. There are also vesicles that are taken using pressure.

However, for vesicular images obtained in a known manner, the maximum densities and VID1 of the characteristic curve are strongly dependent on the aperture of the lighting and sensing system; the resolving power is limited by the rapidly decreasing scattering power of the bubbles, the diameter of which is equal to (or less) by the binary of the light wavelength; graininess has an unusual anomaly with a maximum at medium densities.

The purpose of the invention is to replace the scattering light of a vesicular image with a light-absorbing dye image - is achieved by the fact that the material having a vesicular image is treated with a dye solution in an organic solvent that can cause the hydrophobic thermoplastic vesicle image bubbles to swell so that the dye diffuses selectively into a closed-loop system, and remove excess solution and remaining bubbles by thermal or solvent treatment. .

In contrast to other known methods in which the imaging light is absorbed by imaging, vesicular methods produce scattering image light. When illuminating and producing materials that are photosensitive compounds, especially compounds that are sensitive to UV rays, dispersed in a binder, 11 ppc on a substrate, light scattering centers appear in accordance with the image. Such centers consist of microscopic closed gas bubbles, which in most cases are stably fixed in the thermoplastic layer in the form of a yen.

Polyvinylidene chloride, polymethacrylonitrile, polyamines, polyurethanes, polystyrene, acrylonitrile / ethyl acrylate or vinylideichloride copolymers are sometimes used as thermoplastics, sometimes with modifiers, for example oligomers, epoxides or methyl methacrylate. Thermosetting plastics and swelling hydrophilic gels, such as gelatin, can also be used for vesicles. Substrates can be fabrics, polyesters and paper. Of photosensitive substances, diazon salts, as a rule, are precipitated, emitting nitrogen during photographic decomposition, which during heat treatment affects the formation of bubbles. Dyestuffs, UV absorbers, fluorescent substances, preferably optical brighteners, organometallic compounds, metal salts, preferably water-soluble, surface-active substances, and oil distillates can be used to modify the vesicular images. In order to obtain light-absorbing images, it is preferable to use substances that absorb rays in the visible region of the spectrum, i.e. dyes, including fluorescent ones. Water-soluble metal salts in subsequent chemical reactions are converted into light-absorbing substances that are not soluble in water, for example, in oxide, sulphide, organometallic complex or metal. The resulting image can be enhanced by physical appearance. Metal salts can also be used in the preparation of magnetic microfilms. As substances suitable for producing light absorbing images, for example, compounds of gold, silver, copper or nickel can be used and reduced to metal or precipitated by another means. Both chemically and electrolytically, such metallic images can be enhanced and transformed into conductive samples, for example, into so-called printed electrical circuits. To dissolve the bubbles and to dissolve the substance by which the image is blasted, predominantly oil-dissolving solvents are used. Solvents that cause rapid swelling of the substrate without noticeable interruption of it into the solution are most useful. The best results are obtained by mixing two or more solvents, of which at least one dissolves the polymer well and the other does not dissolve it. Methyl chloride, tetrahydrofuran, 1,2-dichloro- and trichlorobenzene, cyclohexanone, 1,1,1-trichloroethane, diokean, ethyl acetoacetate, 2-ethoxyethanol, 2-propyloxyethanol are used as solvents for polyvinylidene chloride supports. Mixtures of these solvents are used at a temperature close to room temperature. For the rapid conversion of most methylene chloride, for slower 2-ethoxyethanol. Methylene chloride, acetone, methylene chloride-ethanol mixtures, dimethylformamide-ethanol, dimethyl sulfone-ethyl acetoacetate, nitromethane-methylene chloride, cyclohexanone, acetonitrile, and acetone are suitable for iolimethacrylon onryl substrates. For polystyrene substrates, mixtures of cyclohexane - acetone, benzene - methanol, methylene chloride, methyl ethyl ketone are used. Blends of cyclohexane and acetone are preferred. For low molecular weight epoxides, for example, Shell Epicote 1001, ethyl acetate is added. a mixture of dimethylformamide methyl ethyl ketone, benzene - ethanol, dioxane - ethoxyethanol, respectfully ethyl acetate. An important property of such solvents is the ability in the shortest period of time to penetrate into the spaces containing bubbles, i.e., the ability to diffusion without noticeable evolution of gas bubbles, with a strong swelling of the structure. In the areas of the image with a small number of nodules or in the unexposed areas, this process is carried out much less than in areas with a large number of bubbles with a large inner surface and thin polymer walls. Instead of the above-mentioned solvents, in a continuous process carried out at room temperature, you can use solid solvents with a melting point of 200 40-100 ° C, for example wax, low polymer thermoplastics or gels that contain hydroxy, ether, ketone and nodobny groups. The concentration of the substance used to obtain the image in a solvent is 0.1–10 wt. %, mainly 0.8-1.5 weight. % The processing temperature is 100 ° C, mostly 15-25 ° C. Depending on the nature of the solvent, concentration and temperature, the time of contact of the solution with the vesicular image is 3 seconds - 20 minutes. The color density on the exposed and unexposed areas of an image with a uniform photosensitive layer depends on time, concentration of the substance used, solvent and temperature. As a result of long-term processing, the photosensitive layer completely splits. With appropriate selection of conditions, an optimal difference is obtained between the densities of the maximum and minimum exposure sections. The excess solution of the substance used to obtain the image is removed by washing with a solvent in which the substance dissolves and then rinsing with a volatile organic solvent inert to the material of the vesicular image substrate, for example ethanol or carbon tetrachloride. It is advisable to dry the transformed image in a drying cabinet or in a stream of heated gas for 2-5 minutes at 30 ° C. Substances used for imaging with scattering properties can be fixed by brief heat treatment at 50 ° C (above the temperature

glass transition of a thermoplastic substrate). In so doing, the thermoplastic is stitched and becomes shiny on the surface and in the areas where the bubbles originally were.

If the process is carried out correctly, an image is obtained that is completely free of bubbles and correctly reflects the density distribution of the original.

The minimum density when using dyes is less than 0.01, and maximal is more than 2.5.

Depending on the type of substances used, stable dyes are obtained that do not diffuse or fade.

When UV absorbents are used, UV-absorbing images are formed that can be used as protective filters against UV rays.

When applying dyes, first of all, their solubility in oil-dissolving solvents should be considered.

Such dyes are resistant to scattering.

The projection density of the original vesicular image may increase 2-5 times, i.e., an increase in sensitivity occurs. For example, you can copy originals, such as X-ray film, using the proposed method, and get copies with the same density as in the original. When using the vesicular method, only weak copies with insufficient information are obtained.

In addition, you can copy silver negatives produced with the use of a green light filter from a color slide onto a vesicular plop. Such a positive color is painted in yellow by the proposed method up to a maximum density of 0.6 and a good film is obtained with the best color separation.

With the exclusion of optical deficiencies, light-scattering images that are formed without the use of wet processes can simply be converted into monochrome (black and white) absorbing light, absorbing UV rays, or fluorescent images. In this case, sensitivity and maximum density can be obtained, at which resolution is maintained. In contrast to color diazo films, the advantage of the proposed method is that with the use of a single film by dyeing, any color and an increase in sensitivity of 20-50 times can be obtained.

The proposed method is especially suitable for monochrome small-format cinematography.

Low-format films (16 mm and less), for example Single-8, Super-8, must be designed with relatively wide apertures to obtain satisfactory brightness on the projection screen. Vesicular films under these conditions give a completely

unsatisfactory contrast. After modifying the image 1 and it is quite easy to obtain images with a density of 0.02-3.0 and a gamma value of 1.0-1.3. These values have not been achieved until now.

In addition, the proposed method can be used to modify lithographic films. Although these films, for example

"Kalwalit (Kalvar-Corp., New-Orleans) is a good copy of the original silver negative, but they cannot be subjected (without significant deterioration) to further exonlation,

for example on an offset original. At first, only the vesicular image of the contact print is obtained, a very weak pile, since the light scattered from the side, due to the small distance, also contributes to the exposure of the offset original.

To extinguish this effect, the Calvant film with a density of up to 0.6 needs to be supplied with a dye-absorbing dye, as a result of which the shutter speed is increased four times. If the modified image is converted into a special image that absorbs UV light using the proposed method, then very sharp copies of raster or scratch images are obtained that can be copied without loss of information. When converting the image, in addition, you can get the effect of travlepn, desirable in offset printing. An overexposed vesicular copy of a negative or (depending on the process) positive silver raster image is obtained, which is transformed into a neutral gray color image. By varying the processing time in the solvent (the same tin as the solvent for imaging), the points of the raster can be attenuated.

The process can be carried out in a number of wappers or containers with mechanical stirring of the liquid, in which there are solvents and substances used to obtain the image, as well as a bath for washing. The continuous method can be carried out, for example, in a nonstop rolling machine. The exposed, newly developed vesicle film is transported by means of the guiding planes to the solvent bath, in which, for example, the dye is dissolved, with the help of two rollers are again taken out and then in the same way.

treated in a wash bath.

In such a way, in a few seconds, practical dry transition images are obtained. Another option for continuous processing is that ketone or ether wax (m.p. 40-bo C) is used as a solvent, dyed and applied to a substrate, for example paper, textile fabric, elastomer or a metal strip. The vesicular film and substrate strip are compressed,

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favor roller heated to 60 ° C. The colored film and the substrate are separated, the substrate is regenerated, the film is wiped with cotton or soft paper from the solvent. This simple device can be used in an automatic machine for exposing and displaying veins of a vesicular film by continuously transforming a film with a scattering image into a light absorbing film.

In special cases, organometallic compounds that decompose when heated are used as imaging substances, which can be converted into a metal imprint when the image essence is heated. Among the organometallic compounds, compounds of silver, gold, nickel, copper, or tin are suitable, for example, tetracarbonyl nickel, bi-trifepylphosphine gold (I) chloride, pyridine tri-bromo gold (III) or diethyl tin.

The decomposition of such compounds occurs mainly at 60-150 ° C.

The metal image can then be enhanced with the help of a physical pro-wake.

The resulting images can be used to produce two-color images. Usually, after the diffusion of the substance used to obtain the image, it is exposed to a source of UV radiation, thermal development is carried out to obtain a vesicle image, and the substance used to obtain the imprint is injected.

The preferred method is in which the first and second substances used to obtain the image are introduced in the form of a solution after opening the pores of the vesicular image carried out with a solvent.

Another way is that oil is introduced into closed bubbles, which can be distilled off at elevated temperatures.

When the transformed vesicle image is heated in contact with the receptive paper on the latter, images are taken. Thus, from one transformed vesicular image, up to 200 copies can be obtained. If another sample that absorbs IR rays is added to this sample consisting of paper and vesicular image impregnated with oil, then copies can be made that combine the data of the original vesicular image and the image absorbing IR rays. So get 200 copies with the same content.

Oil condensed on a sheet of a snapshot can be displayed using dyes known in xerography or using ferromagnetic materials with a particle size of 4-17 microns.

The oil can be a reactive compound, such as feiol, naphthol, 3-pyrazolido, derivatives of L, N-dialkylphenylene diamine or hydroxylamine, which reacts with the corresponding reagent 1t on the image sheet to form colored compounds.

Another interesting application of the method of the invention is to obtain color images from single-color color separations.

In so doing, monochromatic separations, such as blue, green, red and black, are copied separately onto a vesicular film sensitive to

longer wavelength UV rays, and nro are, as usual. Individual copies are then colored with solutions of the corresponding dyes, for example, yellow, magenta, blue-green and black. By superposition

different color separations receive a multicolor image, intended for viewing in transmitted light.

Another application of the color copies thus obtained is to

that they are placed in a frame and by

heat treatments are transferred onto a substrate, for example paper, textile fabric or an opaque plastic film, and a multi-color image is obtained viewed in reflected light. In this case, the layer between the substrate and the thermoplastic layer is advantageous.

If pigments or dyes known in offset or intaglio printing are used to color vesicular images, copies of separations can be used to obtain a so-called "stable color, especially if copies of separations are transferred on the printed paper.

To impart stability to separations or thermally transferred superpositions, they are treated with protective varnishes or the following chemical treatment is carried out.

Example I. A freshly visible half-tone positive on a usually polyvinylidene vesicular film (Calvar film, type 10) is immersed for 15 seconds in a moving solution of 2-ethoxyetazole, the wet film is placed in a 1% solution of yellow dye Tresres QRN (color index No. 21230) in 2-ethoxyethanol.

At room temperature, the dye diffuses selectively into the closed bubble system after 6 minutes and after 9 minutes the coloring ends. The yellow dye turns red after diffusion. The film is washed three times well for 10 seconds in succession with a fresh solution.

2-ethoxyethanol. With the last processing

the film is dipped into carbon tetrachloride several times to wash off the dye.

The final purification is carried out with pure carbon tetrachloride. Plenum; (15 min in a drying oven with air circulation at 30 ° C) and a red positive image is obtained.

Example 2. Freshly produced halftone positive on a conventional vesicular film

(film Calvar, type 10) immersed on

15 sec in a moving solution of 2-ethoxyethanol, put a wet film in a 1% solution of yellow dye Ceres GGN (color index No. 110121) in 2-ethoxyethanol.

At room temperature, the dye diffuses selectively after 6 minutes into the closed bubble system and after 10 minutes the coloring ends. The yellow dye becomes red after diffusion. The film is washed well three times for 10 seconds with a fresh solution of 2-ethoxyethanol. During the last treatment, the film is dipped several times in carbon tetrachloride to wash off the dye. The final purification is carried out in pure carbon tetrachloride. The film is dried for 15 minutes in a circulating air oven at 30 ° C and a positive image is obtained.

Example 3. A raster positive on a street film (Calvar film, type 10), pretreated as in example 1, is immersed at 25 ° C in a solution containing 2 g of 100-ml of 2-ethoxyethanol (orate blue) (color index .№64500 ), 2.5 g of red (color index No. 216050) and 2 g of yellow GN (color line: dex No. 18690) dye. After 18 min, the film is twice within 20 seconds and once for 15 seconds, kept in a fresh solution of 2-ethoxyethanol, then several times immersed in a bath with a solution of 1,1,1-three. Chloroethane and dried, as in example 2. Get neutral gray raster positive.

Example 4. A halftone positive on a vesicular film (Calvar film, type 10), previously processed as in Example 1, is immersed at 25 ° C in a solution containing 2 g of red dye in 100 ml of 2-ethoxyethanol (color index No. 26050) . After 15 MIN, the film is held twice for 20 seconds and once for 15 seconds, kept in a fresh solution of 2-ethoxyethanol, then immersed several times in a bath with a solution of 1,1,1-trichloroethane and dried for 15 minutes in an air circulation oven. at 30 ° C.

Example 5. The exposed and developed vesicular film (Calvar film, type 16) is immersed for 5 minutes at 30 ° С in 1% solution of the yellow dye GRN (color index No. 21230) in 2-ethoxyethanol, then the film twice during 10 seconds are quickly washed with 2-ethoxyethanol at 20 ° C, the dye is washed off with carbon tetrachloride and dried, as in Example 1. The resolution of the vesicular and colored image is 114 lines / mm. The optical density is 0.20-0.92 for the vesicular image and 0.29-2.43 for the short image.

Example 6. A vesicular half-tone image (Calvar film, type 10) is immersed for 30 minutes at 20 ° C in a solution that contains 100 g of blue (C. I. Solvent Blue 19) in 100 ml of 2-ethoxyethanol, 3 g of the same. (S.I.

Solvent Gellow 23) and 3 g red (color index N ° 26050) dye.

It is then washed three times for 10 seconds in quick succession with 2-ethoxyethanol, treated twice with carbon tetrachloride and dried, as in Example 1. The resolution of the vesicular and colored images are 161 and 114 lines / mm, respectively. Optical density

the vesicular and colored images are 0.07-0.46 and 0.58-1.39, respectively.

Example 7. A halftone positive on a vesicular film (Calvar film, type 10), pretreated as in example 1, is immersed for 13 minutes at 25 ° C in a solution which contains 100 g of a yellow dye (color) in 100 ml of 2-ethoxyethanol. index No. 18690), then the film is washed twice for 20 seconds and washed for 15 seconds once in a fresh solution of 2-ethoxyethanol, immersed several times in a bath with 1,1,1-trichloroethanol and dried, as in Example 1. Yellow positive the image. Example 8. Vesicular halftone

positive (Calvar film, type 10) is immersed for 13 minutes at 25 ° C in a solution that contains 2 g of a blue dye (color index No. 64500) in 100 ml of 2-ethoxyethanol, and the film is treated as in Example 7.

positive new image.

Example 9. A freshly fixed and fixed vesicular film with a halftone positive (Calvar film, type 10) is immersed at 25 ° C in a solution that is in 100 ml

2-ethoxyethanol contains 2 g of blue (color index No. 64500), 2.5 g of red (color index No. 26050), and 2 g of yellow (color index No. 18690) of a dye. After 28 minutes, the film is washed several times with 2-ethoxyethanol, immersed in 1,1,1-trichloroethane, washed three times with fresh 1,1,1-hrichloroethane, dried for 15 minutes at 30 ° C in an air circulation oven.

Example 10. A vesicular film (Calvar film, type 10) is treated for 15 minutes at 20 ° C in a solution of 2.5 g of optical bleach, for example bis-5-methylbenzoxazolylethylene, in 100 ml of 2-ethoxyethanol, washed once for 15 seconds 2-ethoxyethanol

and then for 30 seconds with carbon tetrachloride, dried for 20 minutes at 30 ° C in an air circulating cabinet. Then the film from the side of the layer is wiped

soft napkin.

When irradiated with a UV lamp (350 nm), the image becomes visible.

Example 11: Silver images that correspond to the yellow, red and blue divisions of a color original are copied onto vesicular films (Calvar film, type 10).

A copy of the yellow division is treated for 8 minutes at 20 ° C in a solution of 1.5 g of yellow dye (Solvent Geilow 23) in 100 ml of 2-ethoxyII

ethanol, three times for 10 seconds, washed with 2-ethoxyethanol and then carbon tetrachloride and dried, as in example 1.

A copy of the red division is immersed for 10 minutes at 20 ° C in a solution of the red dye (color index No. 26050) in 2-ethoxyethanol and processed as indicated above.

A copy of the blue division is immersed for 12 minutes in a 2% solution of the blue dye (Solvent Blue 19) in 2-ethoxyethanol and treated as above.

Overlaying each of the three turned copies get a natural color image. Optical density of the yellow image is 0.19-1.0, red is 0.29-1.36, blue is 0.20-0.83.

Example 12. On the vesicular films (Calvar film, type 10) copy silver images that correspond to the yellow, red, blue and black divisions of a color original.

The yellow division is treated for 8 min at 25 ° C in a solution of 1 g of dye (color index No. 18640) in 100 ml of 2-ethoxyethanol, washed three times for 2 seconds with 2-ethoxyethane, nol and then 1,1,1-trichloroethane and dried, as in example 15.

Red division is placed for 10 min at 25 ° C in a 2% solution of red dye (color index No. 26050) in 2-ethoxyethanol and treated as above.

The blue division is placed for 12 min at 25 ° C in a 2% solution of the blue dye (color and Gdex No. 64500) in 2-ethoxyethanol and treated as above.

The black division is immersed for 20 minutes at 25 ° С in a solution that contains 100 g of blue dye (color index No. 64500), 2.5 g of red 7B (color index N ° 26050) and 2 g of yellow GN in 100 ml of 2-ethoxyethanol. (color index N ° 18690). The film is washed several times with 2-ethoxyethiol, immersed in 1,1,1-trichloroethane and washed with pure 1,1,1-trichloroethane. The washed film is dried as in example 1.

When four colored images are superimposed on each other, a natural color image is obtained.

Example 13. The developed and fixed vesicular film (Calvar film, type 10) is immersed at room temperature for 12 seconds in a solution which contains 3 g of blue B in 100 ml of methylene chloride (color index No. 64500). The film is quickly unreacted in 1,11-trichloroethane, washed for 5 seconds, washed 3 times with 2-ethoxyethanol 1, 1,1,1-trichloroethane, the solvent is evaporated in air, glazed with acetone and dried, as in Example 1, to obtain blue positive image.

Example 14. The developed and fixed vesicular film (Calvar film, type 10) is immersed at room temperature for 10 seconds in a solution that contains 3 g of red 76 ml of methylene chloride 76

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(color index no. 26050), washed for 5 seconds with 1,1,1-trichloroethane, three times with 2-ethoxyethanol and 1,1,1-trichloroethane was used to stop the swelling. The film is quickly air-dried, the emulsion side is glazed with acetone vapor and dried, as in Example 1. A red positive image is obtained. Example 15. On vesicle films

(Calvar film, Tin 10) copy the silver images corresponding to the yellow, red, blue and black divisions of the color negative original. The yellow division is immersed for 8 seconds at

room temperature in a solution containing 1 g of yellow GN in 100 ml of methylene chloride (color index No. 18690), quickly transfer the film to moving 1,1,1-trichloroethane, washed several times with 2-ethoxyethanol and then with 1,1,1-trichloroethane . After a short run in air, the substrate is glazed with acetone vapor and the film is dried, as in Example 1.

The red division is immersed for 10 seconds by a room temperature in a solution that contains 3 g of red 7B in 100 ml of methylene chloride (color index No. 26050) and is treated as above. The blue division is immersed for 10 seconds with

room temperature to the solution, koTOpbm in 100 ml of methylene chloride contains 3 g of blue B (color index No. 64500), and is treated as above. The black division is immersed for 28 minutes at

25 ° C in a solution that contains 100 g of 2NG (color index DL 1869) in 100 ml of 2-ethoxyethanol, 2.5 g of red 7B (color index No. 26050) and 2 g of blue B (color index No. 64500), several clean and clean

2-ethoxyethanol, carbon tetrachloride and dried, as in example 1.

As a result of overlapping four colored images, a natural color image is obtained.

Example 16. A photobug (Calvar paper, type 90, polyvinylidenechloride base) is immersed for 12 minutes in a solution containing 1 g of anthracite in 100 ml of 2-ethoxyethyol, rinsed once with 2-ethoxyethanol, washed twice with carbon tetrachloride and dried for 15 min in an air circulating oven at 30 ° C. In UV light, the image becomes visible at 350 nm.

Example 17. Developed and fixed vesicular lamina (Calvar nlenka, Ting 10) at 24 ° C are immersed in 40 sec in a solution that contains 1.5 g of red 7B (color index No. 26050) in 100 ml of 2-methoxyethanol, quickly immersed in 1,1,1-trichloroethane to stop swelling, washed twice with 2-ethoxyethanol and carbon tetrachloride, the solvent was evaporated in air, glazed with acetone vapor, dried for 5 minutes at 30 ° C in a drying oven

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circulation of air and get a red positive image.

Example 18. A vesicular image (Calvar film, type 10) is immersed for 30 seconds at 24 ° C in a solution that contains 1.5 g of red 7B in 100 ml of 2-methoxyethanol (color index No. 26050), is quickly immersed in ethanol, washed once, then twice for 10 seconds, immersed in 2-ethoxyethanol, rinsing the emulsion side each time with a solvent. The film is then immersed in ethanol, washed, the ethanol is evaporated in air, glazed with acetone vapor, dried as in Example 17, and a red positive image is obtained.

Example 19. A vesicular image (Calvar film, Tin 10) is immersed for 45 seconds at 24 ° C in a solution that contains 2.5 g of red 7B in 100 ml of 2-methoxyethanol (color index No. 26050), immediately immersed in 1, 1,1-trichloroethane, washed, left for 20 seconds in 2-ethoxyethanol, the emulsion side was washed with the same solvent and immersed in 1,1,1-trichloroethane. Then the film is washed with ethanol, dried in air, glazed with acetone vapor, dried as in example 17, and a red positive image is obtained.

Example 20. A vesicular image (Calvar film, type 10) is immersed for 50 seconds at 20 ° C in a solution that contains 100 g of orazol yellow GN (color index No. 18690) in 100 ml of 2-methoxyethanol (2 g of oracleta blue B ( colored index no. 64500), washed three times with 2-ethoxyethanol, immediately with ethanol, evaporated alcohol, glazed with acetone vapor, dried, as in Example 17, and a green positive image was obtained.

Example 21: On a vesicular film (Calvar film, type 10), an image is copied, shown, but not fixed, as in Example 17, with a red dye. Then copy the second image and show it a second time.

The vesicular image is placed 2 minutes in 2-methoxyethanol, treated with ethanol for 20 seconds and air dried. The film is treated for 10 minutes in a 1% aqueous solution of a mixture of sodium dibutylnaphthalene sulfonate and diisopropyl naphthalene sulfonate sodium

(wetted, its substance) and in 5 min in 1% aqueous solution of malachite green (color index No. 42000).

It is then dried at 30 ° C, the film on the non-emulsion side is heated for 1 second at 120 ° C with a roller, washed with ethyl alcohol for 10 minutes to remove the dye residues, dried in a drying cabinet at 30 ° C, glazed with dimethylformamide vapor and a two-color image is obtained.

Example 22. Developed and fixed vesicular image (Calvar film, type KDR-17, polyacrylonitrile under 14

spoon) is immersed for 10 seconds at 20 ° C in a solution which contains 100 g of yellow GGN (color index NO 110121) in 100 ml of methylene chloride, quickly converted into 2-ethoxyethanol, washed twice with the same solvent, washed once with 1.1 , 1-trichloroethane, dried in air, the emulsion side is glazed with acetone vapor, the film is dried for 10 minutes at 30 ° C in an air circulating oven and a red positive image is obtained.

Example 23. The vesicular image (Calvar film, type KDR-17) is held for 12 seconds in a solution containing

100 ml of methylene chloride 3 g of yellow GGN (color index No. 110121), quickly immersed in carbon tetrachloride, washed twice with 1,1,1-trichloroethane, dried in air and the emulsion side is glazed

parami-acetone. The film is dried, as in example 22, and get a red positive image.

Example 24. The applied and fixed vesicular image (Calvar film, type KDR-17) is immersed for 15 seconds at room temperature in a solution containing 1 g of blue dye (100 ml of methylene chloride) in 100 ml of methylene chloride (color index No. 64500), quickly converted to 1 , 1,1-trichloroethane, washed three times with indicated solvent with fresh solvent, evaporated it, the emulsion side was glazed with acetone vapor, the film was dried as in Example 22, and a blue positive image was obtained.

Example 25. The developed and fixed vesicular image (Calvar film, type KDR-17) is immersed for 14 seconds at 20 ° C in a mixture of equal parts of methylene chloride and acetone containing 1.5 g 100 .ml yellow

GGN (Afg color index 110121), is rapidly converted to 1,1,1-trichloroethane, washed twice with fresh 1,1,1-trpchloroethane, evaporated, the emulsion side is glazed with acetone and the film is dried, as in Example 22 .

Get a positive image.

Subject invention

Method modpfitsirovapi vesicular image, characterized in that, in order to replace the light rasseivayuphego vesicular imaging light-absorbing dye in the image, a material having a molecular weight vesicles image .krasitel treated with a solution in an organic solvent capable of swelling to cause the hydrophobic thermoplastic walls bubbles vesicular image so that the dye diffuses selectively in the system. I have closed bubbles, an excess amount of solution and the remaining bubbles remove out by thermal treatment or ofrabotki solvent.