Silver halide photographic light-sensitive material

Details Silver halide photographic light-sensitive material Silver halide photographic light-sensitive material

2001-08-30

2003-05-20

Schilling, Richard L. (Department: 1752)

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Identified radiation sensitive composition with color...

C430S551000, C430S611000, C430S613000, C430S614000

Reexamination Certificate

active

06566043

ABSTRACT:

FIELD OF THE INVENTION
The present invention relates to a silver halide photographic light-sensitive material (hereinafter simply referred to as a light-sensitive material or a photographic meterial), a mercapto compound, and a disulfide compound, and in more detail to a silver halide light-sensitive material, comprising said compound, which exhibits minimized fogging, and excellent pressure resistance, as well as excellent sensitivity.
BACKGROUND OF THE INVENTION
Generally, various pressures are applied onto light-sensitive materials coated with silver halide emulsions. For example, sheet films such as graphic arts light-sensitive materials, and medical direct radiographic materials are manually handled which frequently results in being folded and curled. As noted above, when various pressures are applied onto photographic light-sensitive materials, silver halide grains are subjected to application of pressure through media such as gelatin as the binder of silver halide grains, and a plastic film as the support. When silver halide grains are subjected to application of pressure, variation of photographic performance results. Details are reported, for example, by K. B. Mather, J. Opt. Soc. Am., 38, 1054 (1948), P. Faelens and P. deSmet, Sci. et Ind. Phot., 24, No. 5, 178 (1954), P. Faelens, J. Phot. Sci., 2, 105 (1954), and others.
In addition, sought is further improvement of retaining performance of light-sensitive materials, particularly retardation of an increase in fogging during storage.
Camera light-sensitive materials are developed varying period of time from immediate to several months or one year after exposure. It is preferable that during such an elapse of time, fogging performance be maintained.
SUMMARY OF THE INVENTION
An objective of the present invention is to provide a silver halide photographic light-sensitive material, comprising mercapto compounds and disulfide compounds, which exhibits low fogging, excellent pressure resistance, and excellent sensitivity, and is to provide mercapto compounds as well as disulfide compounds.
The objective of the present invention has been achieved employing the embodiments below.
1. A silver halide photographic light-sensitive material comprising a support having thereon a light-sensitive silver halide emulsion layer comprising a compound represented by Formula,
Formula 1
Z—S—X
wherein Z represents a group represented by Formula 1-2; X represents a hydrogen atom or Z—S—,
wherein A
1
, A
2
, A
3
, A
4
, and A
5
each represent ═N—, ═N(→O)—, or ═CR
91
—, in which R
91
represents a substituent, and at least two of A
1
, A
2
, A
3
, A
4
, and A
5
are respectively ═N(→O)—and ═CR
91
—.
2. The photographic material of item 1, wherein the compound represented by Formula 1 is selected from the group of compounds represented by Formula 6 to Formula 14,
wherein R
61
, R
71
, R
81
, and R
91
each represent a substituent; m
6
represents 1 to 4; m
7
and m
8
represent an integer of 0 to 4; m
9
represents an integer of 0 to 3; when m
6
, m
7
, m
8
and m
9
are 2 or more, R
61
, R
71
, R
81
, and R
91
may be a different substituent and may bond to each other to form a condensation ring; A
1
, A
2
, A
3
, A
4
, and A
5
each represent ═N—, —CR
92
, or ═N(→O)—, and at least two of A
1
, A
2
, A
3
, A
4
, and A
5
represent ═N— or ═N(→O)—, and at least one represents ═N(→O)—; and R
92
represents a substituent; Ra and Rb each represent an electron attractive group and may be the same or different, and p and q each represent integer of 1 to 4; R
11
, R
12
, R
13
, an R
14
each represent a substituent; m
11
represents an integer of 1 to 4; m
12
and m
13
each represent an integer of 0 to 4; m
14
represents an integer of 0 to 3; A
1
, A
2
, A
3
, A
4
, and A
5
each are the same as each of Formula 9.
3. The photographic material of item 2, wherein the compound represented by Formula 1 is selected from the group of compounds represented by Formula 6 to Formula 10,
wherein R
61
, R
71
, R
81
, and R
91
each represent a substituent; m
6
represents an integer of 1 to 4; m
7
and m
8
represent 0 to 4; m
9
represents an integer of 0 to 3; when m
6
, m
7
, m
8
and m
9
are 2 or more, R
61
, R
71
, R
81
, and R
91
may be a different substituent and may bond to each other to form a condensation ring; A
1
, A
2
, A
3
, A
4
, and A
5
each represent ═N—, ═CR—, or ═N(→O)—, and at least two of A
1
, A
2
, A
3
, A
4
, and A
5
represent ═N— or ═N(→O)—, and at least one represents ═N(→O)—; and R
92
represents a substituent;
wherein Ra and Rb each represent an electron attractive group and may be the same or different, and p and q each represent an integer of 1 to 4.
4. The photographic material of item 2, wherein the compound represented by Formula 1 is selected from the group of compounds represented by Formula 11 to Formula 14.
wherein R
11
, R
12
, R
13
, and R
14
each represent a substituent; m
11
represents an integer of 1 to 4; m
12
and m
13
each represent an integer of 0 to 4; m
14
represents an integer of 0 to 3; and A
1
, A
2
, A
3
, A
4
, and A
5
each are the same as each of Formula 9.
5. The photographic material of item 3, wherein each R
61
, R
71
, R
81
, and R
91
in Formula 6 to Formula 9 represents a group which promotes adsorption onto silver halide grains.
6. The silver halide light-sensitive material of item 1,
wherein the compound is contained in an amount of 1×10
−7
to 1×10
−1
mole per mole of Ag.
7. The silver halide light-sensitive material of item 3, wherein the compound is represented by Formula 10,
wherein Ra and Rb each represent an electron attractive group and may be the same or different, and p and q each represent an integer of 1 to 4.
8. The photographic material of item 3, wherein the compound is represented by Formula 6,
wherein R
61
represent a substituent and m
6
represents an integer of 1 to 4, when m
6
is 2 or more, R
61
may be a different substituent and may bond to each other to form a condensation ring.
9. The photographic material of item 3, wherein the compound is represented by Formula 7,
wherein R
71
represent a substituent and m
7
represents an integer of 0 to 4, when m
7
is 2 or more, R
71
may be a different substituent and may bond to each other to form a condensation ring.
10. The silver halide light-sensitive material of item 3, wherein the compound is represented by Formula 8,
wherein R
81
represent a substituent and m
8
represents an integer of 0 to 4, when m
8
is 2 or more, R
81
may be a different substituent and may bond to each other to form a condensation ring.
11. The photographic material of item 3, wherein the compound is represented by Formula 9,
wherein A
1
, A
2
, A
3
, A
4
, and A
5
each represent ═N—, ═CR—, or ═N(→O)—, and at least two of A
1
, A
2
, A
3
, A
4
, and A
5
represent ═N— or ═N(→O)—, and at least one represents ═N(→O)—; and R
92
represents a substituent;
12. The photographic material of item 1, wherein the emulsion is subjected to reduction sensitization.
13. The photographic material of item 3, wherein the emulsion contains a tabular silver halide grain.
14. A photographic material comprising a compound represented by Formulas 2 to 5, 6-2, and 7-2.
wherein X
1
represents —NR
21
— or —O—; X
2
, X
3
, and X
4
each represents ═CR
22
— or ═N—; both R
21
and R
22
represent a hydrogen atom or a substituent; X
1
, X
2
, X
3
, and X
4
may form a condensation ring with each other, however, all of X
1
, X
2
, X
3
, and X
4
are not a nitrogen atom; Y
1
, Y
2
, Y
3
, Y
4
, and Y
5
each represent ═N— or ═CR
31
—, however, any one of Y
1
, Y
3
and Y
5
is not ═N—; Q represents a group of atoms necessary for forming a 5-membered or 6-membered heterocyclic ring comprising at least one of —O—, —S—, —N<, —SO
2
—, —CO—, or NR
31
CO—, wherein R
31
represents a hydrogen atom or a substituent; G represents an oxygen atom and a sulfur atom;

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