GB1177482A - Improvements relating to Thermographic Recording. - Google Patents
Improvements relating to Thermographic Recording.Info
- Publication number
- GB1177482A GB1177482A GB0351/66A GB135166A GB1177482A GB 1177482 A GB1177482 A GB 1177482A GB 0351/66 A GB0351/66 A GB 0351/66A GB 135166 A GB135166 A GB 135166A GB 1177482 A GB1177482 A GB 1177482A
- Authority
- GB
- United Kingdom
- Prior art keywords
- transparency
- screen
- permeable
- water
- heating
- 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
- 239000000463 material Substances 0.000 abstract 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract 3
- 238000010438 heat treatment Methods 0.000 abstract 3
- 239000001828 Gelatine Substances 0.000 abstract 2
- 229920000159 gelatin Polymers 0.000 abstract 2
- 235000019322 gelatine Nutrition 0.000 abstract 2
- 230000005855 radiation Effects 0.000 abstract 2
- 229910052709 silver Inorganic materials 0.000 abstract 2
- 239000004332 silver Substances 0.000 abstract 2
- 239000004698 Polyethylene Substances 0.000 abstract 1
- 239000004372 Polyvinyl alcohol Substances 0.000 abstract 1
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 238000004061 bleaching Methods 0.000 abstract 1
- 239000006229 carbon black Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- -1 polyethylene Polymers 0.000 abstract 1
- 229920000573 polyethylene Polymers 0.000 abstract 1
- 229920002451 polyvinyl alcohol Polymers 0.000 abstract 1
- 235000019422 polyvinyl alcohol Nutrition 0.000 abstract 1
- 229920000036 polyvinylpyrrolidone Polymers 0.000 abstract 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 abstract 1
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 238000005406 washing Methods 0.000 abstract 1
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
- B41M5/36—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using a polymeric layer, which may be particulate and which is deformed or structurally changed with modification of its' properties, e.g. of its' optical hydrophobic-hydrophilic, solubility or permeability properties
- B41M5/366—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using a polymeric layer, which may be particulate and which is deformed or structurally changed with modification of its' properties, e.g. of its' optical hydrophobic-hydrophilic, solubility or permeability properties using materials comprising a polymeric matrix containing a polymeric particulate material, e.g. hydrophobic heat coalescing particles
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Thermal Transfer Or Thermal Recording In General (AREA)
- Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
Abstract
1,177,482. Production of screen images. GEVAERT-AGFA N.V. Dec.28, 1966 [Jan. 11, 1966], No. 1351/66. Heading G2M. Continuous tone transparencies are recorded by exposing to radiation (preferably visible or infrared) through the transparency and across line screen a water-permeable, heat-sensitive material which charges its water-permeability on heating and also containing a substance which absorbs the radiation and heats the layer on such absorption so that a latent screen dot image of the transparency is produced. The heat-sensitive materials preferred are those described in Specifications 1,139,894 and 1,139,892 which become less water-permeable on heating and those in Specification 1,154, 568 which become more waterpermeable on heating. In the examples, a support is coated with polyvinyl alcohol, gelatine or polyvinylpyrrolidone in which is dispersed polyethylene particles and carbon black or silver. This heatsensitive material is placed in contact with a magenta contact screen and a continuous tone transparency and flash exposed through the screen and transparency so that the areas correspondingtothebackground of the transparency are exposed and become less water-permeable. The latent image is developed either by washing out the more water-permeable areas or by bleaching the silver out of the areas to leave a negative screen image of the transparency. Positive screen images are produced by using a heat-sensitive material of gelatine with a high Bloom gel strength and colloidal silver as in Specification 1,154, 568.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0351/66A GB1177482A (en) | 1966-01-11 | 1966-01-11 | Improvements relating to Thermographic Recording. |
| DE19671671515 DE1671515A1 (en) | 1966-01-11 | 1967-01-07 | Thermographic reproduction process |
| CH29467A CH469571A (en) | 1966-01-11 | 1967-01-10 | Thermographic reproduction process |
| FR90953A FR1507875A (en) | 1966-01-11 | 1967-01-10 | Reproduction of a transparent original in halftones as a raster image |
| NL6700358A NL6700358A (en) | 1966-01-11 | 1967-01-10 | |
| BE692423D BE692423A (en) | 1966-01-11 | 1967-01-11 | |
| US608572A US3564597A (en) | 1966-01-11 | 1967-01-11 | Thermographic recording process for reproducing continuous tone transparencies |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0351/66A GB1177482A (en) | 1966-01-11 | 1966-01-11 | Improvements relating to Thermographic Recording. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1177482A true GB1177482A (en) | 1970-01-14 |
Family
ID=9720500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB0351/66A Expired GB1177482A (en) | 1966-01-11 | 1966-01-11 | Improvements relating to Thermographic Recording. |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3564597A (en) |
| BE (1) | BE692423A (en) |
| CH (1) | CH469571A (en) |
| DE (1) | DE1671515A1 (en) |
| FR (1) | FR1507875A (en) |
| GB (1) | GB1177482A (en) |
| NL (1) | NL6700358A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA943183A (en) * | 1970-07-08 | 1974-03-05 | Fuji Photo Film Co. | Heat-sensitive copying device |
| US4264986A (en) * | 1979-03-12 | 1981-04-28 | Willis Craig I | Information-recording process & apparatus |
-
1966
- 1966-01-11 GB GB0351/66A patent/GB1177482A/en not_active Expired
-
1967
- 1967-01-07 DE DE19671671515 patent/DE1671515A1/en active Pending
- 1967-01-10 CH CH29467A patent/CH469571A/en unknown
- 1967-01-10 NL NL6700358A patent/NL6700358A/xx unknown
- 1967-01-10 FR FR90953A patent/FR1507875A/en not_active Expired
- 1967-01-11 US US608572A patent/US3564597A/en not_active Expired - Lifetime
- 1967-01-11 BE BE692423D patent/BE692423A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR1507875A (en) | 1967-12-29 |
| US3564597A (en) | 1971-02-16 |
| NL6700358A (en) | 1967-06-26 |
| CH469571A (en) | 1969-03-15 |
| BE692423A (en) | 1967-07-11 |
| DE1671515A1 (en) | 1970-11-05 |
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