DE69200184T2 - Heat sensitive recording material. - Google Patents

Heat sensitive recording material.

Info

Publication number
DE69200184T2
DE69200184T2 DE69200184T DE69200184T DE69200184T2 DE 69200184 T2 DE69200184 T2 DE 69200184T2 DE 69200184 T DE69200184 T DE 69200184T DE 69200184 T DE69200184 T DE 69200184T DE 69200184 T2 DE69200184 T2 DE 69200184T2
Authority
DE
Germany
Prior art keywords
thermally
layers
sensitive
colour
typically
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 - Fee Related
Application number
DE69200184T
Other languages
German (de)
Other versions
DE69200184D1 (en
Inventor
Keith Brian Damarell
Paul Douglas Norrington
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.)
Arjo Wiggins Ltd
Original Assignee
Wiggins Teape Group Ltd
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 Wiggins Teape Group Ltd filed Critical Wiggins Teape Group Ltd
Publication of DE69200184D1 publication Critical patent/DE69200184D1/en
Application granted granted Critical
Publication of DE69200184T2 publication Critical patent/DE69200184T2/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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

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)
  • Investigating Or Analysing Biological Materials (AREA)
  • Road Signs Or Road Markings (AREA)
  • Laminated Bodies (AREA)

Abstract

A thermally-sensitive record material with improved thermal response for a given total coatweight of thermally-sensitive composition or image-forming components has the thermally-sensitive composition applied separately in two or more adjacent layers, each of which contains colour developing coreactant material, rather than in the conventional single layer. The adjacent thermally-sensitive layers are formulated such that together they generate a substantially single colour final print in response to heat energy input. The colour developing coreactant materials in the layers may be the same or different and are typically bisphenols. The colour former is typically a fluoran leucodye.
DE69200184T 1991-12-13 1992-12-10 Heat sensitive recording material. Expired - Fee Related DE69200184T2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB919126559A GB9126559D0 (en) 1991-12-13 1991-12-13 Thermally-sensitive record material

Publications (2)

Publication Number Publication Date
DE69200184D1 DE69200184D1 (en) 1994-07-14
DE69200184T2 true DE69200184T2 (en) 1994-09-15

Family

ID=10706256

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69200184T Expired - Fee Related DE69200184T2 (en) 1991-12-13 1992-12-10 Heat sensitive recording material.

Country Status (8)

Country Link
EP (1) EP0546836B1 (en)
JP (1) JP3212726B2 (en)
AT (1) ATE106805T1 (en)
CA (1) CA2085317A1 (en)
DE (1) DE69200184T2 (en)
ES (1) ES2054522T3 (en)
FI (1) FI103657B (en)
GB (1) GB9126559D0 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI110314B (en) * 2001-05-25 2002-12-31 Jujo Thermal Oy Process for preparing thermosensitive recording material and thermosensitive recording material

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2110399B (en) * 1981-11-18 1985-06-26 Dainippon Printing Co Ltd Thermosensitive recording material

Also Published As

Publication number Publication date
FI925657A0 (en) 1992-12-11
GB9126559D0 (en) 1992-02-12
EP0546836B1 (en) 1994-06-08
FI103657B1 (en) 1999-08-13
EP0546836A1 (en) 1993-06-16
JP3212726B2 (en) 2001-09-25
DE69200184D1 (en) 1994-07-14
FI103657B (en) 1999-08-13
ES2054522T3 (en) 1994-08-01
FI925657A (en) 1993-06-14
JPH05246144A (en) 1993-09-24
ATE106805T1 (en) 1994-06-15
CA2085317A1 (en) 1993-06-14

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: ARJO WIGGINS LTD., BASINGSTOKE, HAMPSHIRE, GB

8339 Ceased/non-payment of the annual fee