GB1229215A - - Google Patents

Info

Publication number
GB1229215A
GB1229215A GB1229215DA GB1229215A GB 1229215 A GB1229215 A GB 1229215A GB 1229215D A GB1229215D A GB 1229215DA GB 1229215 A GB1229215 A GB 1229215A
Authority
GB
United Kingdom
Prior art keywords
interlayer
developer
dye
ferricyanide
compound
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
Other languages
English (en)
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 filed Critical
Publication of GB1229215A publication Critical patent/GB1229215A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41MPRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00Duplicating or marking methods; Sheet materials for use therein
    • B41M5/26Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
    • B41M5/30Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using chemical colour formers
    • B41M5/32Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using chemical colour formers one component being a heavy metal compound, e.g. lead or iron

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)
GB1229215D 1967-05-23 1967-05-23 Expired GB1229215A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2398367 1967-05-23

Publications (1)

Publication Number Publication Date
GB1229215A true GB1229215A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1971-04-21

Family

ID=10204532

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1229215D Expired GB1229215A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1967-05-23 1967-05-23

Country Status (3)

Country Link
BE (1) BE715499A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB1229215A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL (1) NL6807216A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Also Published As

Publication number Publication date
BE715499A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1968-11-22
NL6807216A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1968-07-25

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Legal Events

Date Code Title Description
PS Patent sealed
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PLNP Patent lapsed through nonpayment of renewal fees