JPS5789750A - Photosensitive and heat sensitive type recording material - Google Patents

Photosensitive and heat sensitive type recording material

Info

Publication number
JPS5789750A
JPS5789750A JP16701280A JP16701280A JPS5789750A JP S5789750 A JPS5789750 A JP S5789750A JP 16701280 A JP16701280 A JP 16701280A JP 16701280 A JP16701280 A JP 16701280A JP S5789750 A JPS5789750 A JP S5789750A
Authority
JP
Japan
Prior art keywords
silver
recording material
org
silver halide
agent
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
JP16701280A
Other languages
Japanese (ja)
Inventor
Masaaki Umehara
Koji Ujiie
Makoto Kunikane
Kiyoshi Taniguchi
Kanako Ishiwatari
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 JP16701280A priority Critical patent/JPS5789750A/en
Publication of JPS5789750A publication Critical patent/JPS5789750A/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
    • G03C1/48515—Direct positive emulsions prefogged

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (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 directly form a positive image by fogging the silver halide of a heat development type recording material using org. silver salt. CONSTITUTION:A recording material contg. silver halide (a), org. silver salt (b) as an oxidizing agent and a reducing agent (c) as principal components is fogged beforehand. The silver halide (a) forms a latent image by exposure. Since it has been fogged, silver atoms exist on the crystal surface. When the silver halide is exposed, silver atoms corresponding to the quantity of exposure disappear (fog is destructed), and a ground is formed. The org. silver salt (b) is selectively reduced at the latent image part during heating to form an image, and it includes silver behenate or silver arachidate. Monohydroxybenzene, dihydroxybiphenyl, naphthol or the like is used as the reducing agent (c). The fogging is conducted by uniform exposure or with a chemical fogging agent. A desensitizing dye and an electron trapping agent such as gold or sulfur may be used.
JP16701280A 1980-11-26 1980-11-26 Photosensitive and heat sensitive type recording material Pending JPS5789750A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16701280A JPS5789750A (en) 1980-11-26 1980-11-26 Photosensitive and heat sensitive type recording material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16701280A JPS5789750A (en) 1980-11-26 1980-11-26 Photosensitive and heat sensitive type recording material

Publications (1)

Publication Number Publication Date
JPS5789750A true JPS5789750A (en) 1982-06-04

Family

ID=15841739

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16701280A Pending JPS5789750A (en) 1980-11-26 1980-11-26 Photosensitive and heat sensitive type recording material

Country Status (1)

Country Link
JP (1) JPS5789750A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60111200A (en) * 1983-10-21 1985-06-17 ミネソタ　マイニング　アンド　マニュファクチュアリング　コンパニ− X ray photothermographic assembly for industrial use
US5384238A (en) * 1991-10-14 1995-01-24 Minnesota Mining And Manufacturing Company Positive-acting photothermographic materials

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60111200A (en) * 1983-10-21 1985-06-17 ミネソタ　マイニング　アンド　マニュファクチュアリング　コンパニ− X ray photothermographic assembly for industrial use
JPH0469895B2 (en) * 1983-10-21 1992-11-09 Minnesota Mining & Mfg
US5384238A (en) * 1991-10-14 1995-01-24 Minnesota Mining And Manufacturing Company Positive-acting photothermographic materials

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