GB1209227A - Heat-sensitive recording medium - Google Patents
Heat-sensitive recording mediumInfo
- Publication number
- GB1209227A GB1209227A GB2649168A GB2649168A GB1209227A GB 1209227 A GB1209227 A GB 1209227A GB 2649168 A GB2649168 A GB 2649168A GB 2649168 A GB2649168 A GB 2649168A GB 1209227 A GB1209227 A GB 1209227A
- Authority
- GB
- United Kingdom
- Prior art keywords
- binder
- azo
- koreska
- aromatic
- pigments
- 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
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C1/00—Photosensitive materials
- G03C1/52—Compositions containing diazo compounds as photosensitive substances
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Heat Sensitive Colour Forming Recording (AREA)
Abstract
1,209,227. Thermographic materials. R. KORESKA [trading as W. KORESKA]. June 4, 1968 [July 6, 1967], No. 26491/68. Heading G2C. A thermographic material comprises a layer containing (i) N, N<SP>1</SP> - dinitroso-N-phenyl - N - cyclo-hexyl-p-phenylenediamine (ii) an aromatic azo coupler and (iii) an aromatic amine capable of forming an azo dye and a polymeric binder. Specified couplers are those of Naphthol AS series and 2, 3-dihydroxynaphthalene whereas o-dianisidine and 4<SP>1</SP> -amino-6<SP>1</SP> -methyl-m-benzanisidide are specified as the aromatic amines forming azo dyes. The heat sensitive layer may also contain a pigment such as silica titanium dioxide or zinc oxide and a reducing agent, e.g. hydroxylammonium chloride. In the examples the dinitrose compound with a binder and pigments is ground and then mixed with a ground mixture of the coupler, Fast Blue B base or Fast Violet B base, pigments and binder and coated on a support on imagewise exposure, e.g. to a heated stylus, a coloured azo dye image is produced. To prevent clogging of the stylus, a wax such as polyvinyl ether of octadecyl alcohol is added to the heat sensitive layer.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT629067A AT271511B (en) | 1967-07-06 | 1967-07-06 | Heat-sensitive recording paper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1209227A true GB1209227A (en) | 1970-10-21 |
Family
ID=3584809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2649168A Expired GB1209227A (en) | 1967-07-06 | 1968-06-04 | Heat-sensitive recording medium |
Country Status (7)
| Country | Link |
|---|---|
| AT (1) | AT271511B (en) |
| DE (1) | DE1773575A1 (en) |
| ES (1) | ES355939A1 (en) |
| FR (1) | FR1571901A (en) |
| GB (1) | GB1209227A (en) |
| NL (1) | NL6809442A (en) |
| SE (1) | SE349980B (en) |
-
1967
- 1967-07-06 AT AT629067A patent/AT271511B/en active
-
1968
- 1968-06-04 GB GB2649168A patent/GB1209227A/en not_active Expired
- 1968-06-06 DE DE19681773575 patent/DE1773575A1/en active Pending
- 1968-06-28 ES ES355939A patent/ES355939A1/en not_active Expired
- 1968-07-03 SE SE913768A patent/SE349980B/xx unknown
- 1968-07-04 NL NL6809442A patent/NL6809442A/xx unknown
- 1968-07-05 FR FR1571901D patent/FR1571901A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| SE349980B (en) | 1972-10-16 |
| FR1571901A (en) | 1969-06-20 |
| NL6809442A (en) | 1969-01-08 |
| AT271511B (en) | 1969-06-10 |
| ES355939A1 (en) | 1970-01-01 |
| DE1773575A1 (en) | 1971-11-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |