SU1282061A1 - Method of manufacturing light-sensitive polymeric material - Google Patents

Abstract

The invention relates to photography, in particular, photosensitive polymeric materials (SPM). Increasing the maximum optical density and photosensitivity of the PSM in the range of LENGTH of waves of 250-365 nm is achieved by using another polyvinyl sulfate and additional processing after the heat treatment stage. SPM is obtained by preparing a solution containing a polyvinyl sulfate of the formula (it, „- (CH, -Hc () -, where m is 0.05-2.00, and water .. The glass substrate is poured onto the resulting solution, dried and heat-treated, after This material is additionally treated with an aqueous solution of lead acetate. The SPM provides the best in comparison with the known maximum optical density and photosensitivity (by an order of magnitude). Table 6 (P

Description

one-

112

The invention relates to photosensitive polymeric materials on which a photographic image consisting of metal particles is formed by the action of physical developers, and can be used in photography to produce images.

The purpose of the invention is to increase the maximum optical density and photosensitivity of the polymer material in the wavelength range of 250-365 nm.

The photosensitive layer is formed by pouring an aqueous solution of polyvinyl sulfate on the substrate. To eliminate the solubility of the formed layer in the aqueous solution of the developer, after watering the layer, heat treatment is performed for 2 hours at. Then lead is sorbed onto the material by ion exchange from an aqueous solution of lead salt. After sorption of lead ions, the material is washed in distilled water, dried in air.

After exposure of the material to low doses of UV radiation and subsequent manifestation by the action of known physical manufacturers, blackening appears, the intensity of which increases with increasing exposure. The material is sensitive in the region of 250-365 nm (with maximum sensitivity at 254 nm).

Example 1. A 1% aqueous solution of polyvinyl sulfate (polyvinyl alcohol sulfate) of the formula

.

put a thin layer on a glass substrate, then dried and thermostatted. Ion-exchange sorption gives 40 lead salt. The resulting material

has the formula

-.snz-sh -) ,, (- Сн, -сн -), /

, 5PJ3

(-sn2-sn -) -, oo (-sn2-sh-Ho5

he $ OZN

applied in a thin layer on a glass substrate. The layer cast on the glass substrate is air dried at room temperature. To make the layer insoluble in aqueous solutions of the developer, the treatment is carried out for 2 hours at. The material is then immersed in a 0.1 M lead acetate solution for 3 minutes to ion-exchange sorption of lead ions, after which the sample is washed on the imaging material with distilled water from mechanically trapped lead acetate. The sample is dried in air at room temperature.

Conduct a test of the sensitivity of the material and its appearance after exposure.

Optical density obtained

given in Table. 2,

The energy required to achieve an optical density of 55 visible images of 0.2 over the density of the veil is -J / cm.

The resulting material, consisting of a substrate and a layer of lead salt of sulfuric ester of polyvinyl alcohol, of the general formula

(- g- "H-1," "(- CH, -CH-), HE CJOjO.SPb

YU

a z oa20 lu)

To test photosensitivity, they are exposed to a quartz-mercury-lamp with an intensity of 2.9-10 quantum / cm. After exposure, sorption from a 10N aqueous solution of AgNO is carried out for 30 minutes. Then the material is washed with 1 min of 10% aqueous solution of NH OH and 5 min with water. Dry in air at room temperature. . After this, the material appears in a silver physical display. The composition of the wittel: oh. (0,289g. AgNOg in 100 ml-N, 0), b (0.3 g of metol in 103 ml), s (3.1 g of citric acid in 100 ml BUT) with the ratio of OS b: C 2.5: 6: 4.

The optical density of the developed image obtained on the material is given in Table. one.

The energy required to achieve an optical density of a visible image of 0.2 over the density of the veil is 2-10 J / cm. The maximum sensitivity of the material lies in the region of 254 nm.

Example 2. According to example 1, a 1% aqueous solution of polyvinyl sulfate of the formula

CH, -CH -) „„ (- CH2-CH-) he OgOjH

put a thin layer on a glass substrate, then dried and thermostatted. Ion-exchange sorption gives 40 lead salt. The resulting material

has the formula

-.snz-sh -) ,, (- Сн, -сн -), /

, 5PJ3

.25

thirty

35

45a - 50 on the material of the shown image on the material of the shown image

Conduct a test of the sensitivity of the material and its appearance after exposure.

Optical density obtained

on the material of the displayed image

Ana in Table. 2,

The energy required to achieve an optical density of a visible image of 0.2 over the density of the veil is -J / cm.

Example 3. According to example 1, a 1% aqueous solution of polyvinyl sulfate of the formula

- (- sn, -sn -), „„ (- sn, -sn -) „d

he is $ 0 ozn

put a thin layer on a glass substrate, then dried and thermostatted. Lead salt is obtained by ion exchange sorption. The resulting material has the formula

Bsng-sn -) „„ (- slc-sn-) „,

he, 5РЬ

The material is exposed and developed.

The maximum optical density of the visible image obtained on this material exposed to 1 minute is 2.9. The density of the veil is 0.06,

Table 3 shows the optical densities of the visible image obtained on the material. The energy required to achieve an optical density of a visible image of 0.2 over the density of the veil is J / cm,

Example 4. According to example 1, a 1% aqueous solution of polyvinyl sulfate of the formula

are

12820614

put a thin layer on a glass substrate, then dried and thermostatted. Lead salt is obtained by ion exchange sorption. The resulting material has the formula

(-sn2-sn -) ,, L-sn2-sn-)

I

0

five

 100 2 at 2 he. BRI

The material is exposed and developed.

The maximum optical density of the visible image obtained on this material is equal to -. on 3, the density of the veil is 0.05,

Table 5 shows the optical densities of the visible image produced on the material, depending on the exposure.

The photographic sensitivity of the material is about 10 J / cm,

When used as a polymer photosensitive layer of the lead salt of sulfuric acid polyvinyl alcohol ether of the formula

5 (-CH2-CH -), oo (: -CH2-CH-)

OH0 $ OzO, 5Pb

molded photosensitive ma0

G and f H material has a maximum optical

 Y) ioo V) 30 density 1.8, When used in

HE

as a polymeric photosensitive layer of lead salt of polyvinyl alcohol sulfate of formula

as a polymeric photosensitive layer of lead salt of polyvinyl alcohol sulfate of formula

has the formula

(-CHN-CH -) „„ (- CH, -CH-) 55 OH

put a thin layer on the glass understarsk, then dried and thermostatically,

rutot. Ion-exchange sorption get h Gf W-fH

lead salt. The resulting material (/ SO 2 V / 2.5

OH 0 $ 050,5РЬ

to obtain a photosensitive layer with OSOiO 5Pb AP with satisfactory physical and mechanical properties is not possible - with

The material is exposed and developed.

The maximum optical density of the visible image obtained on this material is 2.1. The density of the veil is 0.05,

Table 4 shows the optical densities of the visible image obtained on the material depending on the exposure time (the photographic sensitivity of the material is 50 of the order of joule / cm),

Example 5 According to Example G, a 1% aqueous solution of polyvinyl sulfate of the formula

chemical-photographic processing layer swells, resizes,

 Table 6 shows comparative data for the proposed and well-known photosensitive materials. From the data in Table 6, it follows that the proposed material achieves higher values of maximum optical density than on the known material. The photosensitivity of the proposed material increases the sensitivity of a known material by more than an order of magnitude.

(-cn2-sn -) ,,, (- cn2-sn-) 2

he .

as a polymeric photosensitive layer of lead salt of polyvinyl alcohol sulfate of formula

h gf W-fH

chemical-photographic processing layer swells, resizes,

Table 6 shows comparative data for the proposed and well-known photosensitive materials. From the data in Table 6, it follows that the proposed material achieves higher values of maximum optical density than on the known material. The photosensitivity of the proposed material increases the sensitivity of a known material by more than an order of magnitude.

Claims (1)

Invention Formula A method of manufacturing a photosensitive polymer material by preparing a solution comprising a polyvinyl sulfate of the formula .f "U (-" "g-CH-)„ HE OSOJ and water, watering this solution onto a glass substrate, drying, heat treating, different Optical density 2.0 1.80 1.30 0.52 0.33 0.05 Optical density 2.6 1.8 1.5. 1.4 0.32 0.05 Optical density. 2.9 2.7 2.111 1.1 1.1 0.84 0.57 0.05 Optical density 1.4 1.15 1.00.90 0.60 0.05 2820616 so that, in order to maximize the optical density and light. sensitivity of the material in the wavelength range of 250-365 nm, polyvinyl sulfate of formula (I) with m 0.05-2.00 is used, and after heat treatment, the material is further treated with aqueous lead acetate solution. Table 1 Table 2 Table 3 Table 4 Editor N. Rogulich Compiled by L. Bogdanova Tehred I.Popovich Proofreader E. Sirohman Order 7264/44 Circulation 421 VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 ; T and l and c and 5 Subscription