JPS5562443A - Direct positive image formation method - Google Patents
Direct positive image formation methodInfo
- Publication number
- JPS5562443A JPS5562443A JP13620778A JP13620778A JPS5562443A JP S5562443 A JPS5562443 A JP S5562443A JP 13620778 A JP13620778 A JP 13620778A JP 13620778 A JP13620778 A JP 13620778A JP S5562443 A JPS5562443 A JP S5562443A
- Authority
- JP
- Japan
- Prior art keywords
- formula
- silver halide
- low
- foggant
- aryl
- 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.)
- Granted
Links
Landscapes
- Pyridine Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PURPOSE: To form a positive image of high maximal density and low minimal density in a comparatively short time in a low concentration of foggant and at low pH value, by using a specified hydrazine derivative as a foggant for development of an internal latent image type silver halide emulsion imagewise exposed.
CONSTITUTION: One or more kinds of hydrazine derivatives represented by formulae I, II, and III (R1WR6 are each aryl or a heterocyclic group; X1WX3 are carbonyl or sulfonyl; Y1 is formula IV; Y2 formula V; Y3 formula VI; R7WR9 are H, lower alkyl, or aryl; L1WL3 are each a divalent organic group; R7 and L2, R8 and L3 each may link and form a 5- or 6-membered ring; and k, l, m, and n are each 0 or 1) are added to a silver halide emulsion layer or an adjacent layer of this, or a fogging bath. Its use amount is preferably 10-4W10-1 mole per mole of silver halide, thus, permitting uneven development, occurrence of pollution, or the like to be prevented.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13620778A JPS5828570B2 (en) | 1978-11-02 | 1978-11-02 | Direct positive image formation method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13620778A JPS5828570B2 (en) | 1978-11-02 | 1978-11-02 | Direct positive image formation method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5562443A true JPS5562443A (en) | 1980-05-10 |
JPS5828570B2 JPS5828570B2 (en) | 1983-06-16 |
Family
ID=15169817
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13620778A Expired JPS5828570B2 (en) | 1978-11-02 | 1978-11-02 | Direct positive image formation method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5828570B2 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56164221U (en) * | 1980-05-06 | 1981-12-05 | ||
JPS6332538A (en) * | 1986-07-25 | 1988-02-12 | Fuji Photo Film Co Ltd | Silver halide photographic sensitive material |
JPS63121838A (en) * | 1986-11-11 | 1988-05-25 | Fuji Photo Film Co Ltd | Silver halide photographic sensitive material |
JPS6486134A (en) * | 1987-05-20 | 1989-03-30 | Konishiroku Photo Ind | Silver halide photographic sensitive material providing high contrast picture image |
JPH0336541A (en) * | 1989-07-03 | 1991-02-18 | Konica Corp | Silver halide photographic sensitive material |
-
1978
- 1978-11-02 JP JP13620778A patent/JPS5828570B2/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56164221U (en) * | 1980-05-06 | 1981-12-05 | ||
JPS6332538A (en) * | 1986-07-25 | 1988-02-12 | Fuji Photo Film Co Ltd | Silver halide photographic sensitive material |
JPS63121838A (en) * | 1986-11-11 | 1988-05-25 | Fuji Photo Film Co Ltd | Silver halide photographic sensitive material |
JPS6486134A (en) * | 1987-05-20 | 1989-03-30 | Konishiroku Photo Ind | Silver halide photographic sensitive material providing high contrast picture image |
JPH0336541A (en) * | 1989-07-03 | 1991-02-18 | Konica Corp | Silver halide photographic sensitive material |
Also Published As
Publication number | Publication date |
---|---|
JPS5828570B2 (en) | 1983-06-16 |
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