JPS5636647A - Manufacture of direct positive silver halide photographic material - Google Patents

Manufacture of direct positive silver halide photographic material

Info

Publication number
JPS5636647A
JPS5636647A JP11251379A JP11251379A JPS5636647A JP S5636647 A JPS5636647 A JP S5636647A JP 11251379 A JP11251379 A JP 11251379A JP 11251379 A JP11251379 A JP 11251379A JP S5636647 A JPS5636647 A JP S5636647A
Authority
JP
Japan
Prior art keywords
silver halide
added
direct positive
photographic material
manufacture
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
Application number
JP11251379A
Other languages
Japanese (ja)
Inventor
Susumu Baba
Akio Yoshida
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.)
Mitsubishi Paper Mills Ltd
Original Assignee
Mitsubishi Paper Mills Ltd
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 Mitsubishi Paper Mills Ltd filed Critical Mitsubishi Paper Mills Ltd
Priority to JP11251379A priority Critical patent/JPS5636647A/en
Publication of JPS5636647A publication Critical patent/JPS5636647A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To stabilize the photographic characteristics of a photographic material over a long term by using an amine compound.
CONSTITUTION: A compound represented by general formula I and a metal compound having higher potential are added to a direct positive fogged silver halide emulsion. In order to further enhance the effect, it is desirable to add a compound represented by general formula II. These compounds may be added at any stage after finishing the most part of a fogging process in the preparation of a direct positive silver halide photographic emulsion, yet they are preferably added after finishing the 2nd ripening as additives. The amount of the compounds added is 10mgW10g, preferably 100mgW5g per mol of silver halide. The resulting in case of an ammonia mehtod.
COPYRIGHT: (C)1981,JPO&Japio
JP11251379A 1979-09-03 1979-09-03 Manufacture of direct positive silver halide photographic material Pending JPS5636647A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11251379A JPS5636647A (en) 1979-09-03 1979-09-03 Manufacture of direct positive silver halide photographic material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11251379A JPS5636647A (en) 1979-09-03 1979-09-03 Manufacture of direct positive silver halide photographic material

Publications (1)

Publication Number Publication Date
JPS5636647A true JPS5636647A (en) 1981-04-09

Family

ID=14588522

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11251379A Pending JPS5636647A (en) 1979-09-03 1979-09-03 Manufacture of direct positive silver halide photographic material

Country Status (1)

Country Link
JP (1) JPS5636647A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02146034A (en) * 1988-11-28 1990-06-05 Fuji Photo Film Co Ltd Silver halide photographic sensitive material for reversal process

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02146034A (en) * 1988-11-28 1990-06-05 Fuji Photo Film Co Ltd Silver halide photographic sensitive material for reversal process

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