JPS5726843A - Positive type photosensitve and heat sensitive recording member - Google Patents

Positive type photosensitve and heat sensitive recording member

Info

Publication number
JPS5726843A
JPS5726843A JP10054480A JP10054480A JPS5726843A JP S5726843 A JPS5726843 A JP S5726843A JP 10054480 A JP10054480 A JP 10054480A JP 10054480 A JP10054480 A JP 10054480A JP S5726843 A JPS5726843 A JP S5726843A
Authority
JP
Japan
Prior art keywords
alkyl
positive type
halogen
phenyl
substituted
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
JP10054480A
Other languages
Japanese (ja)
Inventor
Masaaki Umehara
Makoto Kunikane
Kiyoshi Taniguchi
Koji Ujiie
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP10054480A priority Critical patent/JPS5726843A/en
Publication of JPS5726843A publication Critical patent/JPS5726843A/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
    • G03C1/494—Silver salt compositions other than silver halide emulsions; Photothermographic systems ; Thermographic systems using noble metal compounds
    • G03C1/498—Photothermographic systems, e.g. dry silver
    • G03C1/49836—Additives
    • G03C1/49845—Active additives, e.g. toners, stabilisers, sensitisers
    • G03C1/49854—Dyes or precursors of dyes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)

Abstract

PURPOSE:To obtain a positive type dry recording member having satisfactory characteristics in ground density and rereversal without using a poisonous substance such as Hg by adding a specified amount of a specified dye to a photosensitive and heat sensitive layer contg. an oxidizing agent for org. silver salt, silver halide, a reducing agent and a toning agent. CONSTITUTION:A dye represented by the formula [where each of R1 and R2 is H, 1-8C alkyl, allyl, phenyl, xylyl, tolyl or acyl of 1-3C alkyl, all of R3-R6 are H or one of them is 1 or 2C lower alkyl, halogen or (substituted) phenyl, the substituent is CH3, halogen, CH3O or the like, and the others are H, Z is (substituted) benzene or (substituted) nephthalene, the substituent is halogen, methoxy, 1-4C alkyl or a group of atoms required to form a ring such as phenyl, and n is 0 or 1] is added as a sensitizing dye by 10<-2>-10<-6> mole per one mole oxidizing agent for org. silver salt. Thus, a positive type copying material fit for microfilm and a simple copier is obtd.
JP10054480A 1980-07-24 1980-07-24 Positive type photosensitve and heat sensitive recording member Pending JPS5726843A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10054480A JPS5726843A (en) 1980-07-24 1980-07-24 Positive type photosensitve and heat sensitive recording member

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10054480A JPS5726843A (en) 1980-07-24 1980-07-24 Positive type photosensitve and heat sensitive recording member

Publications (1)

Publication Number Publication Date
JPS5726843A true JPS5726843A (en) 1982-02-13

Family

ID=14276886

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10054480A Pending JPS5726843A (en) 1980-07-24 1980-07-24 Positive type photosensitve and heat sensitive recording member

Country Status (1)

Country Link
JP (1) JPS5726843A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60196757A (en) * 1984-03-19 1985-10-05 Fuji Photo Film Co Ltd Thermodevelopable photosensitive material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60196757A (en) * 1984-03-19 1985-10-05 Fuji Photo Film Co Ltd Thermodevelopable photosensitive material

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