GB1464251A - Thermo-reactive colour recording material - Google Patents

Thermo-reactive colour recording material

Info

Publication number
GB1464251A
GB1464251A GB2407873A GB2407873A GB1464251A GB 1464251 A GB1464251 A GB 1464251A GB 2407873 A GB2407873 A GB 2407873A GB 2407873 A GB2407873 A GB 2407873A GB 1464251 A GB1464251 A GB 1464251A
Authority
GB
United Kingdom
Prior art keywords
electron acceptor
recording material
optionally substituted
colour former
colour
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.)
Expired
Application number
GB2407873A
Inventor
R Garner
J C Petitpierre
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.)
Novartis AG
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
Priority to GB2407873A priority Critical patent/GB1464251A/en
Priority to FI1367/74A priority patent/FI136774A/fi
Priority to DE2423535A priority patent/DE2423535A1/en
Priority to FR7417265A priority patent/FR2288003A1/en
Priority to CH678974A priority patent/CH590133A5/xx
Priority to AT416674A priority patent/AT331823B/en
Priority to BR4109/74A priority patent/BR7404109D0/en
Priority to ZA00743198A priority patent/ZA743198B/en
Priority to IT5110974A priority patent/IT1011469B/en
Priority to BE144538A priority patent/BE815292A/en
Priority to JP49056210A priority patent/JPS5021738A/ja
Publication of GB1464251A publication Critical patent/GB1464251A/en
Expired 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
    • B41M5/323—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)

Abstract

1464251 Thermoreactive colour recording material CIBA-GEIGY AG 26 March 1974 [21 May 1973] 24078/73 Heading G2C A thermoreactive recording material comprises a colour former of the Formula:- where A is optionally substituted 4-aminophenyl; E is optionally substituted indol-3-yl; and B is an optionally substituted benzene ring, an electron acceptor and a binder, arranged on a support so that on application of heat the colour former and the electron acceptor contact each other at the point of application of heat. The electron acceptor may be an acidic clay, a phenolic compound or resin or an organic acid. The colour former and electron acceptor may be in the same binder layer (see Examples) or in different binder layers. Mark forming may be affected manually using a heated pen or with a laser beam.
GB2407873A 1973-05-21 1973-05-21 Thermo-reactive colour recording material Expired GB1464251A (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
GB2407873A GB1464251A (en) 1973-05-21 1973-05-21 Thermo-reactive colour recording material
FI1367/74A FI136774A (en) 1973-05-21 1974-05-06
DE2423535A DE2423535A1 (en) 1973-05-21 1974-05-15 THERMOREACTIVE RECORDING MATERIAL
FR7417265A FR2288003A1 (en) 1973-05-21 1974-05-17 TEMPERATURE-SENSITIVE RECORDING MATERIAL
CH678974A CH590133A5 (en) 1973-05-21 1974-05-17
AT416674A AT331823B (en) 1973-05-21 1974-05-20 THERMOREACTIVE RECORDING MATERIAL
BR4109/74A BR7404109D0 (en) 1973-05-21 1974-05-20 TERMOREATIVE RECORDING MATERIAL PROCESS FOR MAKING RECORDS AND TERMOREATIVE COMPOSITION
ZA00743198A ZA743198B (en) 1973-05-21 1974-05-20 Thermoreactive recording material
IT5110974A IT1011469B (en) 1973-05-21 1974-05-20 THERMO REACTIVE RECORDING MATERIAL AND PROCEDURE FOR MAKING COPIES WITH IT
BE144538A BE815292A (en) 1973-05-21 1974-05-20 TEMPERATURE-SENSITIVE RECORDING MATERIAL
JP49056210A JPS5021738A (en) 1973-05-21 1974-05-21

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
GB1464251A true GB1464251A (en) 1977-02-09

Family

ID=10206019

Family Applications (1)

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

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)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2194070A (en) * 1986-07-09 1988-02-24 Fuji Photo Film Co Ltd Sheet recording material containing dye-forming components
US4800193A (en) * 1986-07-28 1989-01-24 Fuji Photo Film Co., Ltd. Recording material

Families Citing this family (4)

* 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
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
US3509173A (en) * 1967-01-30 1970-04-28 Ncr Co 3,3-bis-(indol-3-yl) 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

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2194070A (en) * 1986-07-09 1988-02-24 Fuji Photo Film Co Ltd Sheet recording material containing dye-forming components
US4803192A (en) * 1986-07-09 1989-02-07 Fuji Photo Film Co., Ltd. Recording material
GB2194070B (en) * 1986-07-09 1990-01-10 Fuji Photo Film Co Ltd Sheet recording material containing dye-forming components
US4800193A (en) * 1986-07-28 1989-01-24 Fuji Photo Film Co., Ltd. Recording material

Also Published As

Publication number Publication date
CH590133A5 (en) 1977-07-29
ZA743198B (en) 1975-05-28
FR2288003A1 (en) 1976-05-14
JPS5021738A (en) 1975-03-07
DE2423535A1 (en) 1974-12-12
ATA416674A (en) 1975-12-15
FR2288003B1 (en) 1979-04-20
BR7404109D0 (en) 1975-09-30
BE815292A (en) 1974-11-20
AT331823B (en) 1976-08-25
FI136774A (en) 1974-11-22

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee