JPS5562443A - Direct positive image formation method - Google Patents

Direct positive image formation method

Info

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
Application number
JP13620778A
Other languages
Japanese (ja)
Other versions
JPS5828570B2 (en
Inventor
Keiji Ogi
Nobuaki Kagawa
Tsuneo Wada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Konica Minolta Inc
Original Assignee
Konica Minolta Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Konica Minolta Inc filed Critical Konica Minolta Inc
Priority to JP13620778A priority Critical patent/JPS5828570B2/en
Publication of JPS5562443A publication Critical patent/JPS5562443A/en
Publication of JPS5828570B2 publication Critical patent/JPS5828570B2/en
Expired legal-status Critical Current

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  • 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
JP13620778A 1978-11-02 1978-11-02 Direct positive image formation method Expired JPS5828570B2 (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (5)

* Cited by examiner, † Cited by third party
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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