JPS5654437A - Direct positive image forming method - Google Patents

Direct positive image forming method

Info

Publication number
JPS5654437A
JPS5654437A JP13043079A JP13043079A JPS5654437A JP S5654437 A JPS5654437 A JP S5654437A JP 13043079 A JP13043079 A JP 13043079A JP 13043079 A JP13043079 A JP 13043079A JP S5654437 A JPS5654437 A JP S5654437A
Authority
JP
Japan
Prior art keywords
direct positive
exposed part
positive image
image
fogging
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
JP13043079A
Other languages
Japanese (ja)
Inventor
Keiji Ogi
Atsushi Kamitakahara
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 JP13043079A priority Critical patent/JPS5654437A/en
Publication of JPS5654437A publication Critical patent/JPS5654437A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/26—Processes using silver-salt-containing photosensitive materials or agents therefor
    • G03C5/50—Reversal development; Contact processes

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)

Abstract

PURPOSE:To obtain a fine direct positive image with an unprefogged internal latent image type silver halide emulsion by using a specified benzimidazole compound as an antifoggant to inhibit the fogging of the exposed part. CONSTITUTION:To a silver halide emulsion layer or a developing bath are added benzimidazole and its deriv. represented by the formula (where X is CR, R is H or lower alkyl and each of R<1> and R<2> is H, halogen, lower alkyl, lower alkoxy, NO2, OH, NH2 or COOH). Thus, the fogging of the exposed part and the appearance of a negative image in the highly exposed part are inhibited even in high temp. development especially at >=30 deg.C, and a superior internal latent image type direct positive image with high sensitivity and improved white ground is obtd. without lowering the image density.
JP13043079A 1979-10-09 1979-10-09 Direct positive image forming method Pending JPS5654437A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13043079A JPS5654437A (en) 1979-10-09 1979-10-09 Direct positive image forming method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13043079A JPS5654437A (en) 1979-10-09 1979-10-09 Direct positive image forming method

Publications (1)

Publication Number Publication Date
JPS5654437A true JPS5654437A (en) 1981-05-14

Family

ID=15034044

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13043079A Pending JPS5654437A (en) 1979-10-09 1979-10-09 Direct positive image forming method

Country Status (1)

Country Link
JP (1) JPS5654437A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997042174A1 (en) * 1996-05-03 1997-11-13 Pfizer Inc. Substituted indazole derivatives and their use as inhibitors phosphodiesterase (pde) type iv and the production of tumor necrosis factor (tnf)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997042174A1 (en) * 1996-05-03 1997-11-13 Pfizer Inc. Substituted indazole derivatives and their use as inhibitors phosphodiesterase (pde) type iv and the production of tumor necrosis factor (tnf)

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