SU767688A1 - Reversible silver halide photographic material - Google Patents

Description

The invention relates to convertible silver halide photographic materials and can be used in the chemical and photographic industry. A reversible halogen-silver photographic material is known, consisting of a substrate, auxiliary and photosensitive layers, B1: secondary chemical sensitizer - a field of alkylene oxides or their derivatives. A disadvantage of the known material is that it does not have a satisfactory photosensitivity. The purpose of the invention is to increase the sensitivity of the material. The goal is achieved by the fact that the well-known photographic material as a chemical sensitizer contains 2-methyl-6-chloro-1H-dazo 4,5-b pyridine or 2-methyl-5-chloro-1H-imidazo 4, 5-b pyridine in the amount of 0.05-0.3 g per 1 kg of the emulsion or 1 liter of the auxiliary layer solution. To obtain a color image, the proposed photographic material in the photosensitive layers may contain color components commonly used in the production of color film photographic materials. Example 1. Produce color photographic material for shooting in daylight. A colloidal silver sublayer and photosensitive layers are applied to the colorless preluminal: red sensitive (r.h.) green sensitive (3.4i, filter (fs), .vstvitelny (r.ch.) and auxiliary protective layer. - in bromoiodo sulfur (5,2-6,2 mol.% AgJ) (Emulsij containing 1 l, in addition to the common irrigation additives: wetting stabilizer and tanning agent in the red-sensing layer, 2-10 g of pyridinium salt 3, 3-di-y-sulfopropyl-9-ethyl-4, 5 4, 5-dibenzothiocarbocyaninebetanine and a mixture of colored components 5 g of 2-methyl octadecylamino-5-sulfoanilide 1-o Si-2 naphthoic acid, 8.5 g N- (3,5-dicarboxyphenyl) -octadecylamide -oxy-2-naphthoic acid, in a green-sensitive layer - a mixture of optical sensitizers, 1.25-10 g 3,3-diethyl-9- methyl 5-phenyl-5 b, 9-rimethyloxathiacarbocyanine perchlorate, 4,5-lOV 3, H, 9-triethyl-5, 5-difsnyloxycarbocyanine nitrate and a mixture of paint-forming component 5.6 g 3,5-di- (2-me . Phil-5-octade-1-danyl-succinate-Noylaminoben-9-Ozul a-. IoiHo) -1.2-xylene and 22.4 g of 1- (4'-phenox-3-sulfopheny; 3-stearoylaminopyrazolone 5, in the blue-sensitive layer -15 g of the color component H, 5-dicarboxyanind 4-stereoyl-aminobenzoyl 1 uxuanic acid and chemical sensibilizer - 2 methyl-6-hLr-1H-ymidag, 5-b pyridine (compound A), in the synthesis formula 4 compound 3). 10 g per 1 kg of the emulsion (sample I).

At the same time, a control sample is made that does not contain compound A (sample and).

The samples are exposed to a PS-2 sensor at a color temperature of the source of light equal to 6,500 K and processed in the process adopted for processing domestic color films or films.

The results of sensitometric tests of samples 1 and 2 are given in table. 1., GTA Blitz

s.ch.

fs

12

9.h. K.C.

From the data given in Table 1, it is clear that the introduction of emulsion caSuHt cbejufKeni A gives about 1.9 times the sensitivity of the photosensitivity without reducing the level of maximum density of the color-inverted image.

Lrnmer2. Angshogichno example 1 make color reversible photographic material.

45 1.60 0.24 2.90

60 1.65 0.24 2.85 60 1.60 0.23 2.40

In contrast to example 1, compound A is not introduced into the emulsion layers, and in the auxiliary filter layer

at. Amount of 0.20 g / l of solution Sample III). A control sample that does not contain compound A is poured in parallel (sample IV). Samples were tested according to the procedure

described in example 1.

The results obtained are shown in Table 2. From the data in Table 2, it follows that the introduction of compound A into the filter layer of the test sample gives an increase in the photosensitivity of about 1.5 times compared with the control sample. In this case, the values of the maximum densities of the inverted image correspond to the initial values. Example 3. Make a black and white reversible photographic material. An auxiliary colloidal silver sublayer, emulsion and auxiliary layers are deposited on a colorless substrate. In bromine-silver emulsion (5.0-6.0 mol.%

6 6 6

0.1 0.25 The data in Table 3 show that. the introduction of a black and white reversible material of compound A into a silver halide emulsion allows more

Table 2

0.02

2.1

80

1.0

105 0.03 1.0 2.0 0.02 2.2

45

1.1 Agj), containing the usual irrigation additives (stabilizer, optical sensitizer, wetting agent), is added compound A in an amount of 0.1 and 0.25 g per 1 kg of the emulsion (sample Y, Y1). at the same time, a control sample is poured, the emulsion layer of which does not contain compound A (sample vTl). Samples are exposed in a color temperature sensitometer and reversed with a. for processing reusable black and white photographic materials. The results of the sensitometric tests of y-yif samples are given in Table 3, Table 3. By increasing the photosensitivity by a factor of 3 over the control compared with the control. At the same time, other photo 65 graphic indicators, including ..

and 9 values of maximum densities do not change.

EXAMPLE 4 Analogously to Example 1 of .OTaBnHBaibt color reversible photographic material.

Compound A is introduced into the h.a11 | ay layer (sample y) or intermediate layer (sample U1), or simultaneously into the emulsion and auxiliary layers (sample UE).

Compound A is simultaneously introduced into the emulsion and auxiliary layers.

A content

Layers

S; :

G / KG g / g rast-gsii

0.25

with. h

F. s

s.ch.

Passed 0, 25 ka

k.ch.

ri

Protect0.05 ny

0.05

s.ch. Fs

0.05 0.5 z.ch.

0, 05 ka

0.05

k.ch.

at the rate of g per 1 kg of the emulsion or per 1 l of the solution corresponds to the lower limit (sample vril),,

In parallel, a sample is made that does not contain compound A, (sample IX).

Samples are exposed and processed as in Example I.

The test results are presented in table 4.

T a b l and c a 4

Fdtogfy

By: jsssus.tiifs :; : ii: i:;: i,

So.e5 + J ..-. J ...... l

jSjtMii-1Sj j "t - J- jftBesA.

1.60 0.25 2.85

90

90 1.68 0.23 2.86 98 1.65 0.24 2.42

1.58 0.24 2.84

94

1.7

95

0.25 2.85

1.65 0.23, 2.42

100

1.60 0.24 2.83

95

1.70 0.23 2.85

92

1.70 0.22 2.46

102 From the data of tdbl.4 it follows that the introduction of compound A into the protective layer, or intermediate layer, or simultaneously into the emulsion and auxiliary layers provides for an increase in the photosensitivity of the colored cut material not less than 1.5 raE & With a minimum content of the compound in the multilayer system 11a, an increase in branch sensitivity is observed by about 30% compared with the control variant (samples VIII and IX).

0.08

0.08 0.08

Continued tab. four

.% &:

Table 5

1.65

2.86

0.24

2.65

1.70

0.25 2.40 1.65 0.23 / Example 5. Similarly to Example 1, a colored sample and photographic material is made with the introduction of 2-methyl-5-chloro-1H-im1Call 4.5b} pyrdin (compound B), into emulsion layers (sample X) or a protective layer (sample XI), or an intermediate layer (sample CP). In parallel, a sample is made that does not contain compound 6 (sample, HIT),;: The samples are exposed and processed as in Example 1. The results of sensitometric tests of the samples are given in Table 5. As can be seen from Table 5, the introduction of compound B into the emulsion layers or an emitting layer, or intermediate layer, makes it possible to increase the sensitivity to light by a factor of about 1.5 when creating other sensitometry indicators,. EXAMPLE 6.1 The fabrication of the color of the photographic material being converted (sample iCiy) is carried out according to; Example 1 (Sample 1), but instead. Compounds A use chemical3, 4 as a chemical sensitization. 0.6

125

k.ch. 0.6 115

Continued table. five

0.23

1.75 0.25 1.70 cue sensitizer of prototype I (compound D) is a copolymer of alkylene oxide and acrylic acid of structure 45. - ... But (SNGNgo), oo (SNG-CH) dj: soon in the amount of 0.6 g / kg of emulsion 50. As a result of photographic studies of feeds, carried out on 1. get the data presented in tab. b. T a b l and c a 6

13

When comparing Tables 1 and B, when using colored reversible material of polyox-100 copolymer with acrylic acid (substance D) in emulsion layers, more low-level values of the maximum density of the colored reversed image are achieved compared to the material containing compound A, Example 7 Making color reversible photographic

767688

14

The material (sample XY) was carried out according to Example 2, but instead of compound A in the filter layer, polyox-100 of HO (CH-CH 0) dd H (compound D) was used in an amount of 4 g / l gelatinous solution.

As a result of photographic tests conducted in example 1, the data presented in table 7 are obtained.

Table7

Claims (1)

35 claims 1. Reversible silver halide photographic material, consisting of a substrate, auxiliary and light sensitive layers, including a chemical sensitizer, due to the fact that, in order to increase photosensitivity, it contains 2- as a chemical sensitizer methyl 6-chloro-1H-imide 45 zo (4,5-b] pyridine or 2-methyl-8-chloro 1H-iidazo [4,5-b] pyridine in an amount of 0.05-0.3 g per 1 kg of emulsion or 1 l of a solution of an auxiliary layer. 50 2. The reversible silver halide photographic material according to claim 1, characterized in that, in order to obtain a color image, it additionally contains color components in light-55 sensitive layers.