JPS5521067A - Silver halide photographic element - Google Patents
Silver halide photographic elementInfo
- Publication number
- JPS5521067A JPS5521067A JP9421178A JP9421178A JPS5521067A JP S5521067 A JPS5521067 A JP S5521067A JP 9421178 A JP9421178 A JP 9421178A JP 9421178 A JP9421178 A JP 9421178A JP S5521067 A JPS5521067 A JP S5521067A
- Authority
- JP
- Japan
- Prior art keywords
- grains
- emulsion
- silver halide
- density
- cooh
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- -1 Silver halide Chemical class 0.000 title abstract 5
- 229910052709 silver Inorganic materials 0.000 title abstract 3
- 239000004332 silver Substances 0.000 title abstract 3
- 239000000839 emulsion Substances 0.000 abstract 4
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 abstract 2
- 229910006069 SO3H Inorganic materials 0.000 abstract 2
- 239000011258 core-shell material Substances 0.000 abstract 2
- 125000000896 monocarboxylic acid group Chemical group 0.000 abstract 2
- 230000035945 sensitivity Effects 0.000 abstract 2
- 125000000020 sulfo group Chemical group O=S(=O)([*])O[H] 0.000 abstract 2
- ZVNPWFOVUDMGRP-UHFFFAOYSA-N 4-methylaminophenol sulfate Chemical compound OS(O)(=O)=O.CNC1=CC=C(O)C=C1.CNC1=CC=C(O)C=C1 ZVNPWFOVUDMGRP-UHFFFAOYSA-N 0.000 abstract 1
- 125000002373 5 membered heterocyclic group Chemical group 0.000 abstract 1
- 125000004070 6 membered heterocyclic group Chemical group 0.000 abstract 1
- 229910003252 NaBO2 Inorganic materials 0.000 abstract 1
- 125000003545 alkoxy group Chemical group 0.000 abstract 1
- 125000003118 aryl group Chemical group 0.000 abstract 1
- 150000004820 halides Chemical class 0.000 abstract 1
- 229910052736 halogen Inorganic materials 0.000 abstract 1
- 150000002367 halogens Chemical class 0.000 abstract 1
- NVIFVTYDZMXWGX-UHFFFAOYSA-N sodium metaborate Chemical compound [Na+].[O-]B=O NVIFVTYDZMXWGX-UHFFFAOYSA-N 0.000 abstract 1
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 abstract 1
- 125000000547 substituted alkyl group Chemical group 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Abstract
PURPOSE: To form a positive image of high sensitivity free of occurrence of an unfavorable negative image, by adding specified core shell type silver halide grains and a specified heterocyclic mercapto compound to an emulsion layer.
CONSTITUTION: A heterocyclic mercapto compound represented by the formula shown is added to a sliver halide emulsion containing core shell type silver halide grains with the cores chemically sensitized. Variaous preparation conditions of the above grains are studied or the surfaces of the grains are chemically sensitized so as to produce 0.4 or more in density by the sensitivity of the grains when the emulsion is coated in an amount of 300 to 400 mg Ag/ft2, and after imagewise exposure, this is 5 minutes developed at 27°C in a surface developing solution-A. Such an emulsion coated on a support permits a positive type image high in maximum density and low in minimum density to be formed. In the formula, X is O, S, or NR2; Q is a nonmetallic atomic group needed to form a 5- or 6-membered heterocyclic ring including that further having a 5- or 6-membered unsaturated ring; R1,R2, and R3 are H, halogen, SH, OH, COOH, SO3H, or from this optionally substituted alkyl, aryl, or alkoxy; and at least one of R1,R2, and R3 contains at least one of OH, COOH, or SO3H. The surface developing solution-A contains Na2SO3 30.0 g; N-methyl-p- aminophenol sulfate 2.5 g; hydroquinone 2.5 g; NaBO2 10.0 g; KBr 0.5 g; water to give a total volume of 1 liter.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9421178A JPS5521067A (en) | 1978-08-02 | 1978-08-02 | Silver halide photographic element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9421178A JPS5521067A (en) | 1978-08-02 | 1978-08-02 | Silver halide photographic element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5521067A true JPS5521067A (en) | 1980-02-14 |
Family
ID=14103971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9421178A Pending JPS5521067A (en) | 1978-08-02 | 1978-08-02 | Silver halide photographic element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5521067A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5936156A (en) * | 1982-08-23 | 1984-02-28 | Toray Ind Inc | Thermoplastic resin composition |
| JPS62254148A (en) * | 1986-04-28 | 1987-11-05 | Fuji Photo Film Co Ltd | Silver halide photographic sensitive material |
| JPS62299964A (en) * | 1986-06-20 | 1987-12-26 | Konica Corp | Direct positive image forming method |
| JPS6317445A (en) * | 1986-06-19 | 1988-01-25 | Fuji Photo Film Co Ltd | Silver halide photographic sensitive material |
-
1978
- 1978-08-02 JP JP9421178A patent/JPS5521067A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5936156A (en) * | 1982-08-23 | 1984-02-28 | Toray Ind Inc | Thermoplastic resin composition |
| JPS62254148A (en) * | 1986-04-28 | 1987-11-05 | Fuji Photo Film Co Ltd | Silver halide photographic sensitive material |
| JPS6317445A (en) * | 1986-06-19 | 1988-01-25 | Fuji Photo Film Co Ltd | Silver halide photographic sensitive material |
| JPS62299964A (en) * | 1986-06-20 | 1987-12-26 | Konica Corp | Direct positive image forming method |
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