GB2220671B - Improvements in or relating to colour developing recording materials - Google Patents

Improvements in or relating to colour developing recording materials

Info

Publication number
GB2220671B
GB2220671B GB8915963A GB8915963A GB2220671B GB 2220671 B GB2220671 B GB 2220671B GB 8915963 A GB8915963 A GB 8915963A GB 8915963 A GB8915963 A GB 8915963A GB 2220671 B GB2220671 B GB 2220671B
Authority
GB
United Kingdom
Prior art keywords
relating
recording materials
colour developing
developing recording
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 - Fee Related
Application number
GB8915963A
Other versions
GB2220671A (en
GB8915963D0 (en
Inventor
Mutuo Shiraishi
Manabu Yamada
Kozo Mizuno
Katsuhiko Tsunemitsu
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.)
Yamada Chemical Co Ltd
Original Assignee
Yamada Chemical Co 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 Yamada Chemical Co Ltd filed Critical Yamada Chemical Co Ltd
Publication of GB8915963D0 publication Critical patent/GB8915963D0/en
Publication of GB2220671A publication Critical patent/GB2220671A/en
Application granted granted Critical
Publication of GB2220671B publication Critical patent/GB2220671B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B11/00—Diaryl- or thriarylmethane dyes
    • C09B11/04—Diaryl- or thriarylmethane dyes derived from triarylmethanes, i.e. central C-atom is substituted by amino, cyano, alkyl
    • C09B11/26—Triarylmethane dyes in which at least one of the aromatic nuclei is heterocyclic
    • 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
    • B41M5/124—Duplicating or marking methods; Sheet materials for use therein using pressure to make a masked colour visible, e.g. to make a coloured support visible, to create an opaque or transparent pattern, or to form colour by uniting colour-forming components
    • B41M5/132—Chemical colour-forming components; Additives or binders therefor
    • B41M5/136—Organic colour formers, e.g. leuco dyes
    • B41M5/1366—Organic colour formers, e.g. leuco dyes characterised solely by tri (aryl or hetaryl)methane derivatives
    • 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

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Heat Sensitive Colour Forming Recording (AREA)
  • Color Printing (AREA)
GB8915963A 1988-07-16 1989-07-12 Improvements in or relating to colour developing recording materials Expired - Fee Related GB2220671B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63177525A JPH0226782A (en) 1988-07-16 1988-07-16 Color forming recording material

Publications (3)

Publication Number Publication Date
GB8915963D0 GB8915963D0 (en) 1989-08-31
GB2220671A GB2220671A (en) 1990-01-17
GB2220671B true GB2220671B (en) 1992-01-22

Family

ID=16032445

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8915963A Expired - Fee Related GB2220671B (en) 1988-07-16 1989-07-12 Improvements in or relating to colour developing recording materials

Country Status (2)

Country Link
JP (1) JPH0226782A (en)
GB (1) GB2220671B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9313790D0 (en) * 1993-07-03 1993-08-18 Wiggins Teape Group The Ltd Pressure-sensitive copying material
GB2393352A (en) 2002-09-23 2004-03-24 Mitel Knowledge Corp Speaker system with two enclosures having complementary frequency responses

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1548059A (en) * 1976-10-26 1979-07-04 Ciba Geigy Ag Pressure sensitive or heat-sensitive recording material containing a carbazoylmethane compound

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1548059A (en) * 1976-10-26 1979-07-04 Ciba Geigy Ag Pressure sensitive or heat-sensitive recording material containing a carbazoylmethane compound

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JP-B-56/12515 *

Also Published As

Publication number Publication date
GB2220671A (en) 1990-01-17
GB8915963D0 (en) 1989-08-31
JPH0226782A (en) 1990-01-29

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Legal Events

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

Effective date: 19960712