GB1051413A - - Google Patents
Info
- Publication number
- GB1051413A GB1051413A GB1051413DA GB1051413A GB 1051413 A GB1051413 A GB 1051413A GB 1051413D A GB1051413D A GB 1051413DA GB 1051413 A GB1051413 A GB 1051413A
- Authority
- GB
- United Kingdom
- Prior art keywords
- polyester
- powder
- aliphatic
- image
- layer
- 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.)
- Active
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
- B41M5/38235—Contact thermal transfer or sublimation processes characterised by transferable colour-forming materials
-
- 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
- B41M5/398—Processes based on the production of stickiness patterns using powders
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
- Thermal Transfer Or Thermal Recording In General (AREA)
Abstract
1,051,413. Thermographic processes. GEVAERT PHOTO-PRODUCTION N. V. Feb.7, 1964 [Feb.7, 1963], No. 5330/64. Heading G2C. A thermographic process comprises imagewise exposing a polyester layer to heat which softens the layer which can be developed by applying a powder which adheres to the latent image areas; the crystalline polyester being either (i) a polyester of an aliphatic dicarboxylic acid with an aliphatic and/or cycloaliphatic diol or (ii) a polyester of an aliphatic and an aromatic dicarboxylic acid with an aliphatic and/or a cycloaliphatic diol. The polyester preferably melts between 40 degrees and 160‹C with a melting range of 25‹C. The developing powder may be coloured metal or glass granules, powders which react with a compound in the polyester layer (e. g. gallic acid and ferric compounds or an oxidant and a leuco base), capsules containing liquids, pastes, magnetic powders and dyed thermoplastics. Where necessary, the powder image may be fixed by heat and/or pressure. In the examples, a polyester layer of polyethylene sebacate, polyethylene adipate or polyethylene sebacate/iso-or tere-phthalate is coated on a paper support and image-wise exposed and developed with a powder. The powder image may be transferred to a transparent receptor sheet and used as a transparency in a diazotype process.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE2042315 | 1963-02-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1051413A true GB1051413A (en) |
Family
ID=3864791
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1051413D Active GB1051413A (en) | 1963-02-07 |
Country Status (2)
Country | Link |
---|---|
BE (1) | BE628105A (en) |
GB (1) | GB1051413A (en) |
-
0
- BE BE628105D patent/BE628105A/xx unknown
- GB GB1051413D patent/GB1051413A/en active Active
Also Published As
Publication number | Publication date |
---|---|
BE628105A (en) |
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