GB1023494A - Thermographic copying process - Google Patents
Thermographic copying processInfo
- Publication number
- GB1023494A GB1023494A GB9165/63A GB916563A GB1023494A GB 1023494 A GB1023494 A GB 1023494A GB 9165/63 A GB9165/63 A GB 9165/63A GB 916563 A GB916563 A GB 916563A GB 1023494 A GB1023494 A GB 1023494A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sheet
- dye
- original
- infra
- transfer
- 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
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
- B41M5/382—Contact thermal transfer or sublimation processes
- B41M5/38207—Contact thermal transfer or sublimation processes characterised by aspects not provided for in groups B41M5/385 - B41M5/395
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Thermal Transfer Or Thermal Recording In General (AREA)
Abstract
1,023,494. Thermographic transfer materials. KALLE A. G. March 7, 1963 [March 14, 1962], No. 9165/63. Heading G2C. A thermographic transfer sheet comprises a support coated with a sublimable dye as the sole heat-sensitive constituent in a layer less than one micron thick. This sheet is contacted with a recepter sheet and an original so that on exposure to radiant heat, the dye transfers imagewise to the receptor sheet. The dye preferably sublimes between 100 and 120‹C. and may be a stilbene, pyrazolone,triphenyl methane, diphenyl naphthyl methane, azo and oxazine dyes and indamises. Copies may be made from one-or two solid originals by reflex exposure. The image on the receptor sheet may be transferred to a further sheet by heating. Negative images may be reproduced on the receptor sheet by placing between the original and the transfer sheet a sheet of thermally insulating material which transmits infra-red radiation and putting an infra-red obsorbtive pigment in the transfer sheet so that on exposing the back of the original to infra-red radiation the radiant heat is transmitted through the thermally insulating sheet in the non-image areas only and is absorbed by the pigment in the transfer sheet causing the dye to sublime onto the recepter sheet in the non-image areas.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEK0046175 | 1962-03-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1023494A true GB1023494A (en) | 1966-03-23 |
Family
ID=7224109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9165/63A Expired GB1023494A (en) | 1962-03-14 | 1963-03-07 | Thermographic copying process |
Country Status (3)
| Country | Link |
|---|---|
| FR (1) | FR1350499A (en) |
| GB (1) | GB1023494A (en) |
| NL (1) | NL289465A (en) |
-
0
- NL NL289465D patent/NL289465A/xx unknown
-
1963
- 1963-03-07 GB GB9165/63A patent/GB1023494A/en not_active Expired
- 1963-03-14 FR FR927980A patent/FR1350499A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1350499A (en) | 1964-01-24 |
| NL289465A (en) |
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