EP0730196A3 - Heat-sensitive recording material having image-stabilization properties - Google Patents

Heat-sensitive recording material having image-stabilization properties Download PDF

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Publication number
EP0730196A3
EP0730196A3 EP96200223A EP96200223A EP0730196A3 EP 0730196 A3 EP0730196 A3 EP 0730196A3 EP 96200223 A EP96200223 A EP 96200223A EP 96200223 A EP96200223 A EP 96200223A EP 0730196 A3 EP0730196 A3 EP 0730196A3
Authority
EP
European Patent Office
Prior art keywords
reducing agent
recording material
image
heat
reducing
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.)
Granted
Application number
EP96200223A
Other languages
German (de)
French (fr)
Other versions
EP0730196A2 (en
EP0730196B1 (en
Inventor
Luc C/O Agfa-Gevaert N.V. Leenders
Leo C/O Agfa-Gevaert N.V. Oelbrandt
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.)
Agfa Gevaert NV
Original Assignee
Agfa Gevaert NV
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 Agfa Gevaert NV filed Critical Agfa Gevaert NV
Priority to EP19960200223 priority Critical patent/EP0730196B1/en
Publication of EP0730196A2 publication Critical patent/EP0730196A2/en
Publication of EP0730196A3 publication Critical patent/EP0730196A3/en
Application granted granted Critical
Publication of EP0730196B1 publication Critical patent/EP0730196B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G03C1/4989—Photothermographic systems, e.g. dry silver characterised by a thermal imaging step, with or without exposure to light, e.g. with a thermal head, using a laser

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Heat Sensitive Colour Forming Recording (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)

Abstract

A heat-sensitive recording material suited for use in direct thermal imaging and having image-stabilization properties which material contains in a binder on a support (i) a substantially light-insensitive organic silver salt capable of thermally activated reduction to silver in thermal working relationship with (ii) at least one reducing agent capable of reducing the substantially light-insensitive organic silver salt when thermally activated, characterized in that the recording material contains in conjunction, preferably in admixture, with the reducing agent(s) at least one colourless photo-oxidizing substance that on exposure to ultraviolet (UV) radiation, such as present in daylight or artificial lighting, yields free radicals capable of inactivating said reducing agent(s) by oxidation, thereby rendering said reducing agent(s) incapable of reducing said organic silver salt to silver.
EP19960200223 1995-03-02 1996-02-01 Heat-sensitive recording material having image-stabilization properties Expired - Lifetime EP0730196B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19960200223 EP0730196B1 (en) 1995-03-02 1996-02-01 Heat-sensitive recording material having image-stabilization properties

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP95200506 1995-03-02
EP95200506 1995-03-02
EP19960200223 EP0730196B1 (en) 1995-03-02 1996-02-01 Heat-sensitive recording material having image-stabilization properties

Publications (3)

Publication Number Publication Date
EP0730196A2 EP0730196A2 (en) 1996-09-04
EP0730196A3 true EP0730196A3 (en) 1998-01-21
EP0730196B1 EP0730196B1 (en) 2000-10-25

Family

ID=26139121

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19960200223 Expired - Lifetime EP0730196B1 (en) 1995-03-02 1996-02-01 Heat-sensitive recording material having image-stabilization properties

Country Status (1)

Country Link
EP (1) EP0730196B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6211116B1 (en) 1998-06-08 2001-04-03 Agfa-Gevaert Substantially light-insensitive black and white thermographic recording material with improved image tone
EP0964300B1 (en) * 1998-06-08 2003-07-09 Agfa-Gevaert Black and white thermographic recording material with improved image tone

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3094417A (en) * 1961-01-03 1963-06-18 Minnesota Mining & Mfg Heat sensitive copy sheet, process of making and using
US3094619A (en) * 1961-01-03 1963-06-18 Minnesota Mining & Mfg Ultra-violet radiation-desensitizable thermographic copy-sheet and method
US3218166A (en) * 1962-11-23 1965-11-16 Minnesota Mining & Mfg Heat sensitive copy sheet
US3526506A (en) * 1966-06-13 1970-09-01 Minnesota Mining & Mfg Heat reactive,light desensitizing compositions
DE2010822A1 (en) * 1969-03-10 1970-10-01 Nashua Corp., Nashua, N.H. (V.St.A.) Copy paper
GB1271177A (en) * 1970-05-29 1972-04-19 Du Pont Hexaarylbiimidazole oxidation systems
FR2168370A1 (en) * 1972-01-17 1973-08-31 Minnesota Mining & Mfg
JPS5941294A (en) * 1982-09-01 1984-03-07 Fuji Photo Film Co Ltd Heat-sensitive recording method

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3094417A (en) * 1961-01-03 1963-06-18 Minnesota Mining & Mfg Heat sensitive copy sheet, process of making and using
US3094619A (en) * 1961-01-03 1963-06-18 Minnesota Mining & Mfg Ultra-violet radiation-desensitizable thermographic copy-sheet and method
US3218166A (en) * 1962-11-23 1965-11-16 Minnesota Mining & Mfg Heat sensitive copy sheet
US3526506A (en) * 1966-06-13 1970-09-01 Minnesota Mining & Mfg Heat reactive,light desensitizing compositions
DE2010822A1 (en) * 1969-03-10 1970-10-01 Nashua Corp., Nashua, N.H. (V.St.A.) Copy paper
GB1271177A (en) * 1970-05-29 1972-04-19 Du Pont Hexaarylbiimidazole oxidation systems
FR2168370A1 (en) * 1972-01-17 1973-08-31 Minnesota Mining & Mfg
JPS5941294A (en) * 1982-09-01 1984-03-07 Fuji Photo Film Co Ltd Heat-sensitive recording method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 008, no. 143 (M - 306) 4 July 1984 (1984-07-04) *

Also Published As

Publication number Publication date
EP0730196A2 (en) 1996-09-04
EP0730196B1 (en) 2000-10-25

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