CH476581A - Feuille d'enregistrement à base d'un composé chromogène - Google Patents

Feuille d'enregistrement à base d'un composé chromogène

Info

Publication number
CH476581A
CH476581A CH32967A CH32967A CH476581A CH 476581 A CH476581 A CH 476581A CH 32967 A CH32967 A CH 32967A CH 32967 A CH32967 A CH 32967A CH 476581 A CH476581 A CH 476581A
Authority
CH
Switzerland
Prior art keywords
recording sheet
chromogenic compound
compound recording
chromogenic
sheet
Prior art date
Application number
CH32967A
Other languages
English (en)
French (fr)
Inventor
Helmut Baum Henry
Original Assignee
Ncr 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 Ncr Co filed Critical Ncr Co
Publication of CH476581A publication Critical patent/CH476581A/fr

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
    • 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
    • B41M5/28—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using thermochromic compounds or layers containing liquid crystals, microcapsules, bleachable dyes or heat- decomposable compounds, e.g. gas- liberating
    • B41M5/282—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using thermochromic compounds or layers containing liquid crystals, microcapsules, bleachable dyes or heat- decomposable compounds, e.g. gas- liberating using thermochromic compounds
    • B41M5/284—Organic thermochromic compounds
    • 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
    • G03C1/685—Compositions containing spiro-condensed pyran compounds or derivatives thereof, as photosensitive substances

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)
CH32967A 1966-01-13 1967-01-09 Feuille d'enregistrement à base d'un composé chromogène CH476581A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US52032566A 1966-01-13 1966-01-13

Publications (1)

Publication Number Publication Date
CH476581A true CH476581A (fr) 1969-08-15

Family

ID=24072112

Family Applications (1)

Application Number Title Priority Date Filing Date
CH32967A CH476581A (fr) 1966-01-13 1967-01-09 Feuille d'enregistrement à base d'un composé chromogène

Country Status (5)

Country Link
US (1) US3421894A (pm)
BE (1) BE692252A (pm)
CH (1) CH476581A (pm)
DE (1) DE1671563B2 (pm)
GB (1) GB1109554A (pm)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3715212A (en) * 1970-12-07 1973-02-06 Rca Corp Photochromic display and storage device and method of operation thereof
US4533567A (en) * 1983-05-24 1985-08-06 Ncr Corporation Carbonless paper coating formulation
GB8432563D0 (en) * 1984-12-21 1985-02-06 Banks P J Apparatus for handling information
US4960679A (en) * 1985-01-31 1990-10-02 Canon Kabushiki Kaisha Image forming device

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL214309A (pm) * 1956-02-06
US3016308A (en) * 1957-08-06 1962-01-09 Moore Business Forms Inc Recording paper coated with microscopic capsules of coloring material, capsules and method of making
US2949381A (en) * 1958-04-04 1960-08-16 Steinhardt Amos Duplicating sheet coated with a colorless waxy transfer material
US3328167A (en) * 1959-08-10 1967-06-27 Minnesota Mining & Mfg Copy-paper
NL259795A (pm) * 1960-01-08
US3141404A (en) * 1961-04-12 1964-07-21 Columbia Ribbon & Carbon Novel imaging process
NL283351A (pm) * 1961-09-18
BE623057A (pm) * 1961-10-05

Also Published As

Publication number Publication date
US3421894A (en) 1969-01-14
DE1671563B2 (de) 1976-09-30
BE692252A (pm) 1967-06-16
DE1671563A1 (de) 1971-09-30
GB1109554A (en) 1968-04-10

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Legal Events

Date Code Title Description
PL Patent ceased