CH590133A5 - - Google Patents

Info

Publication number
CH590133A5
CH590133A5 CH678974A CH678974A CH590133A5 CH 590133 A5 CH590133 A5 CH 590133A5 CH 678974 A CH678974 A CH 678974A CH 678974 A CH678974 A CH 678974A CH 590133 A5 CH590133 A5 CH 590133A5
Authority
CH
Switzerland
Application number
CH678974A
Inventor
R Garner
J C Petitpierre
Original Assignee
Ciba Geigy Ag
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 Ciba Geigy Ag filed Critical Ciba Geigy Ag
Publication of CH590133A5 publication Critical patent/CH590133A5/xx

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
    • B41M5/323—Organic colour formers, e.g. leuco dyes
    • B41M5/327—Organic colour formers, e.g. leuco dyes with a lactone or lactam ring

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Heat Sensitive Colour Forming Recording (AREA)
CH678974A 1973-05-21 1974-05-17 CH590133A5 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2407873A GB1464251A (en) 1973-05-21 1973-05-21 Thermo-reactive colour recording material

Publications (1)

Publication Number Publication Date
CH590133A5 true CH590133A5 (en) 1977-07-29

Family

ID=10206019

Family Applications (1)

Application Number Title Priority Date Filing Date
CH678974A CH590133A5 (en) 1973-05-21 1974-05-17

Country Status (10)

Country Link
JP (1) JPS5021738A (en)
AT (1) AT331823B (en)
BE (1) BE815292A (en)
BR (1) BR7404109D0 (en)
CH (1) CH590133A5 (en)
DE (1) DE2423535A1 (en)
FI (1) FI136774A (en)
FR (1) FR2288003A1 (en)
GB (1) GB1464251A (en)
ZA (1) ZA743198B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5386229A (en) * 1977-01-07 1978-07-29 Kanzaki Paper Mfg Co Ltd Thermosensitive recording body
US4189171A (en) * 1977-03-01 1980-02-19 Sterling Drug Inc. Marking systems containing 3-aryl-3-heterylphthalides and 3,3-bis(heteryl)phthalides
GB2194070B (en) * 1986-07-09 1990-01-10 Fuji Photo Film Co Ltd Sheet recording material containing dye-forming components
GB2195781B (en) * 1986-07-28 1989-12-20 Fuji Photo Film Co Ltd Sheet recording material containing dye-forming components
JP2504807B2 (en) * 1988-06-29 1996-06-05 新王子製紙株式会社 Thermal recording
JP4575789B2 (en) * 2005-01-17 2010-11-04 パイロットインキ株式会社 Reversible thermochromic microcapsule pigment encapsulating a reversible thermochromic composition

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3491111A (en) * 1967-01-30 1970-01-20 Ncr Co Indole- and carbazole-substituted phthalides
IE35853B1 (en) * 1970-05-15 1976-06-09 Hodogaya Chemical Co Ltd Novel phthalide compounds and their use as colour formers in pressure sensitive recording
JPS4916726B1 (en) * 1970-12-28 1974-04-24

Also Published As

Publication number Publication date
FR2288003A1 (en) 1976-05-14
BR7404109D0 (en) 1975-09-30
AT331823B (en) 1976-08-25
DE2423535A1 (en) 1974-12-12
ATA416674A (en) 1975-12-15
FI136774A (en) 1974-11-22
BE815292A (en) 1974-11-20
GB1464251A (en) 1977-02-09
FR2288003B1 (en) 1979-04-20
JPS5021738A (en) 1975-03-07
ZA743198B (en) 1975-05-28

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Legal Events

Date Code Title Description
PL Patent ceased