JPS6480952A - Direct positive image forming method - Google Patents

Direct positive image forming method

Info

Publication number
JPS6480952A
JPS6480952A JP23809387A JP23809387A JPS6480952A JP S6480952 A JPS6480952 A JP S6480952A JP 23809387 A JP23809387 A JP 23809387A JP 23809387 A JP23809387 A JP 23809387A JP S6480952 A JPS6480952 A JP S6480952A
Authority
JP
Japan
Prior art keywords
variance
positive image
direct positive
continuously
exposure light
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
JP23809387A
Other languages
Japanese (ja)
Inventor
Hisayasu Deguchi
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.)
Fujifilm Holdings Corp
Original Assignee
Fuji Photo Film Co 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 Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Priority to JP23809387A priority Critical patent/JPS6480952A/en
Publication of JPS6480952A publication Critical patent/JPS6480952A/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
    • G03C1/00—Photosensitive materials
    • G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/485—Direct positive emulsions
    • G03C1/48538—Direct positive emulsions non-prefogged, i.e. fogged after imagewise exposure

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)

Abstract

PURPOSE:To effectively suppress variance of photographic performance due to variance of pH of a developing solution by continuously or stepwise changing overall exposure light illuminance at the time of forming a direct positive image and executing development processing in the presence of the specified compound. CONSTITUTION:The development processing is carried out by continuously or stepwise changing the overall exposure light illuminance and executed in the presence of at least one of the compounds represented by the formula shown on the right in which X is -O-, -S-, or the like; Q is an atomic group necessary to form a 5- or 6-membered hetero ring including that condensed with another 5- or 6-membered unsaturated ring; each of R<1>-R<3> is H, halogen, mercapto, or the like and at least one of them is substituted by at least one of OH, COOH, and SO3H, thus permitting change of sensitivity due to pH variance of the developing solution to be reduced.
JP23809387A 1987-09-22 1987-09-22 Direct positive image forming method Pending JPS6480952A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23809387A JPS6480952A (en) 1987-09-22 1987-09-22 Direct positive image forming method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23809387A JPS6480952A (en) 1987-09-22 1987-09-22 Direct positive image forming method

Publications (1)

Publication Number Publication Date
JPS6480952A true JPS6480952A (en) 1989-03-27

Family

ID=17025061

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23809387A Pending JPS6480952A (en) 1987-09-22 1987-09-22 Direct positive image forming method

Country Status (1)

Country Link
JP (1) JPS6480952A (en)

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