AU6644581A - Color imaging system - Google Patents

Color imaging system

Info

Publication number
AU6644581A
AU6644581A AU66445/81A AU6644581A AU6644581A AU 6644581 A AU6644581 A AU 6644581A AU 66445/81 A AU66445/81 A AU 66445/81A AU 6644581 A AU6644581 A AU 6644581A AU 6644581 A AU6644581 A AU 6644581A
Authority
AU
Australia
Prior art keywords
dye
iii
oxidise
amt
layer
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
AU66445/81A
Other versions
AU543071B2 (en
Inventor
Kenneth G. Gatzke
John M. Winslow
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.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing Co
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 Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Publication of AU6644581A publication Critical patent/AU6644581A/en
Application granted granted Critical
Publication of AU543071B2 publication Critical patent/AU543071B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
    • B41M5/30—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using chemical colour formers
    • B41M5/32—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using chemical colour formers one component being a heavy metal compound, e.g. lead or iron
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
    • B41M5/30—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using chemical colour formers
    • B41M5/323—Organic colour formers, e.g. leuco dyes
    • 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)
  • Chemical & Material Sciences (AREA)
  • Optics & Photonics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Color Television Image Signal Generators (AREA)
  • Closed-Circuit Television Systems (AREA)
  • Processing Of Color Television Signals (AREA)
  • Color Image Communication Systems (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Heat Sensitive Colour Forming Recording (AREA)

Abstract

Imageable layer comprises (a) a polymeric binder (I), (b) a leuco dye or bleachable dye (II) and (c) a nitrate salt (III). Nitrate ion is present in a ratio of at least 0.1 moles/mole (II) and the (III) is capable of releasing an oxidising amt. of HNO3, NO, NO2 or N204 when heated to 200 deg.C for 60 seconds, sufficient to oxidise the bleachable dye to a different colour or to a colourless state or to oxidise the leuco dye to a coloured state. Pref. (II) is present in an amt. of at least 0.3 wt.% of the layer and the (III) is a hydrated nitrate salt of Zn, Cd, Ni, Al, Fe, Cu, Mg, Cr, Co, Bi, La, Gd or Th. Suitable binders are e.g. polyvinyl acetals, polyesters, vinyl resins, PVP, polycarbonates, polyamides, PVB, polyacrylates, cellulose esters or copolymers or mixts. of these. The layer may also contain an acid (IV), which accelerates the decolourisation of the dye on heating. The prods. are silver-free, thermally developable colour imaging systems or as antihalation layers in photothermographic systems.
AU66445/81A 1979-12-07 1980-11-10 Color imaging system Ceased AU543071B2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US10119779A 1979-12-07 1979-12-07
US10114479A 1979-12-07 1979-12-07
US101144 1993-08-02
US101197 1993-08-03

Publications (2)

Publication Number Publication Date
AU6644581A true AU6644581A (en) 1981-07-06
AU543071B2 AU543071B2 (en) 1985-03-28

Family

ID=26797946

Family Applications (1)

Application Number Title Priority Date Filing Date
AU66445/81A Ceased AU543071B2 (en) 1979-12-07 1980-11-10 Color imaging system

Country Status (9)

Country Link
EP (1) EP0041540B1 (en)
JP (1) JPS56501480A (en)
AT (1) ATE11460T1 (en)
AU (1) AU543071B2 (en)
BR (1) BR8008959A (en)
DE (1) DE3070044D1 (en)
IT (1) IT1148239B (en)
MX (1) MX157192A (en)
WO (1) WO1981001757A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU580034B2 (en) * 1984-04-16 1988-12-22 Minnesota Mining And Manufacturing Company Prevention of spotting in thermal imaging compositions

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4379835A (en) * 1980-12-22 1983-04-12 Minnesota Mining And Manufacturing Company Black image from a thermographic imaging system
US4386154A (en) * 1981-03-26 1983-05-31 Minnesota Mining And Manufacturing Company Visible light sensitive, thermally developable imaging systems
US4647525A (en) * 1984-10-01 1987-03-03 Minnesota Mining And Manufacturing Company Stabilized leuco phenazine dyes and their use in an imaging system
US4889932A (en) * 1984-10-01 1989-12-26 Minnesota Mining And Manufacturing Company Stabilized leuco phenazine dyes and their use in an imaging system
EP0646628B1 (en) * 1993-09-27 2001-12-12 Tulalip Consultoria Comercial Sociedade Unipessoal S.A. Spectrally sensitized silver halide photographic elements

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE442701A (en) * 1940-10-09
US2756144A (en) * 1951-04-25 1956-07-24 Brown Allen Chemicals Inc Photochemical multicolor printing of textile and the like
US2880153A (en) * 1957-01-28 1959-03-31 American Viscose Corp Photopolymerization process
US3300314A (en) * 1963-02-01 1967-01-24 Eastman Kodak Co Nonsilver, light-sensitive photographic elements
US3460964A (en) * 1964-11-19 1969-08-12 Eastman Kodak Co Heat-sensitive recording element and composition
US3595657A (en) * 1968-10-03 1971-07-27 Little Inc A Non-silver direct positive dye bleachout system using indigoid dyes and colorless activators
US3595655A (en) * 1968-10-03 1971-07-27 Little Inc A Non-silver direct positive dyes bleachout system using polymethine dyes and colorless activators
US3801319A (en) * 1972-06-21 1974-04-02 Xerox Corp Imaging method utilizing chemical reactivities of photoexcited states of aromatic hydroxy compounds
JPS5143786B2 (en) * 1972-12-23 1976-11-24
JPS6010781B2 (en) * 1977-06-22 1985-03-20 潤三 下飯坂 Quasi-static heavy liquid sorting method and equipment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU580034B2 (en) * 1984-04-16 1988-12-22 Minnesota Mining And Manufacturing Company Prevention of spotting in thermal imaging compositions

Also Published As

Publication number Publication date
ATE11460T1 (en) 1985-02-15
WO1981001757A1 (en) 1981-06-25
EP0041540A1 (en) 1981-12-16
EP0041540B1 (en) 1985-01-23
IT8050318A0 (en) 1980-12-05
EP0041540A4 (en) 1982-03-29
BR8008959A (en) 1981-10-20
MX157192A (en) 1988-11-03
JPS56501480A (en) 1981-10-15
DE3070044D1 (en) 1985-03-07
AU543071B2 (en) 1985-03-28
IT1148239B (en) 1986-11-26

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