CH407185A - Thermocolorable copy sheet - Google Patents

Thermocolorable copy sheet

Info

Publication number
CH407185A
CH407185A CH959062A CH959062A CH407185A CH 407185 A CH407185 A CH 407185A CH 959062 A CH959062 A CH 959062A CH 959062 A CH959062 A CH 959062A CH 407185 A CH407185 A CH 407185A
Authority
CH
Switzerland
Prior art keywords
thermocolorable
copy sheet
copy
sheet
thermocolorable copy
Prior art date
Application number
CH959062A
Other languages
French (fr)
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 CH407185A publication Critical patent/CH407185A/en

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
    • B41M5/28—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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Heat Sensitive Colour Forming Recording (AREA)
CH959062A 1961-09-18 1962-08-14 Thermocolorable copy sheet CH407185A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US138775A US3242122A (en) 1961-09-18 1961-09-18 Thermo-colorable record copy sheet and coating composition

Publications (1)

Publication Number Publication Date
CH407185A true CH407185A (en) 1966-02-15

Family

ID=22483582

Family Applications (1)

Application Number Title Priority Date Filing Date
CH959062A CH407185A (en) 1961-09-18 1962-08-14 Thermocolorable copy sheet

Country Status (7)

Country Link
US (1) US3242122A (en)
BE (1) BE622029A (en)
CH (1) CH407185A (en)
DE (1) DE1183918B (en)
GB (1) GB951507A (en)
NL (2) NL283351A (en)
SE (1) SE314301B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3445234A (en) * 1962-10-31 1969-05-20 Du Pont Leuco dye/hexaarylbiimidazole imageforming composition
US3477850A (en) * 1965-07-08 1969-11-11 Itek Corp Light sensitive heat erasable copying system
US3421894A (en) * 1966-01-13 1969-01-14 Ncr Co Recording process utilizing 6'-nitro-1,3,3 - trimethyl-benzoindolinospiropyran dispersed in heat-meltable wax
US3422759A (en) * 1966-06-02 1969-01-21 Xerox Corp Lithographic imaging system using photochromic and thermochromic materials
US3584934A (en) * 1968-04-12 1971-06-15 Itek Corp Nonmechanical shutter
GB1273746A (en) * 1968-10-03 1972-05-10 Agfa Gevaert Unsaturated photochromic monomers and polymers prepared therefrom
JPS4948632B1 (en) * 1968-10-30 1974-12-23
US5234798A (en) * 1991-10-04 1993-08-10 Dittler Brothers, Incorporated Thermal reactive structures

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2880110A (en) * 1954-12-02 1959-03-31 Minnesota Mining & Mfg Heat-sensitive copying-paper
IT631615A (en) * 1960-02-26
NL268635A (en) * 1960-08-26 1900-01-01

Also Published As

Publication number Publication date
NL283351A (en)
NL127674C (en)
GB951507A (en) 1964-03-04
US3242122A (en) 1966-03-22
DE1183918B (en) 1964-12-23
SE314301B (en) 1969-09-01
BE622029A (en)

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