GB1208415A - Improvements relating to thermo-copying - Google Patents
Improvements relating to thermo-copyingInfo
- Publication number
- GB1208415A GB1208415A GB47627/66A GB4762766A GB1208415A GB 1208415 A GB1208415 A GB 1208415A GB 47627/66 A GB47627/66 A GB 47627/66A GB 4762766 A GB4762766 A GB 4762766A GB 1208415 A GB1208415 A GB 1208415A
- Authority
- GB
- United Kingdom
- Prior art keywords
- heat
- sensitive layer
- interlayer
- gelatine
- particles
- 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
- B41M5/36—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)
- Printing Plates And Materials Therefor (AREA)
Abstract
1,208,415. Thermographic processes. GEVAERT-AGFA N.V. Oct.12, 1967 [Oct. 24, 1966], No.47627/66. Heading G2C. A thermographic process which comprises imagewise exposing to heat a heat sensitive material comprising a support optionally carrying an interlayer and a water-permeable heat-sensitive layer which changes its water-permeability on heating, applying an aqueous solution of a substance which penetrates the more water-permeable areas and effects a physical and/or chemical charge in the interlayer or support and then removing the heat sensitive layer. The heat-sensitive layer may be one containing light or heat-absorbent particles which is briefly exposed to flash as disclosed in Specification 1, 160, 221 or one in which such particles are formed by exposure such as silver particles on exposure of a silver halide emulsion. Alternatively a heat-sensitive layer of wax particles in a polymeric binder as disclosed in Specification 1, 208, 414 a gelatine layer as in Specification 985, 433, or a polyvinyl alcohol with at least 95% hydroxyl group as in Specification 1,139, 892 may be used. In the examples, a support is coated with a gelatine interlayer which may contain a mordant or fogged silver halide and overcoated with a heat sensitive layer of polyethylene particles dispersed in gelatine or polyvinylpyrrolidone and optionally contains carbon black. The material is imagewise exposed to flash (if carbon is present) or to infrared and developed with an aqueous dye solution which is mordanted by the interlayer, with tannic acid solution to render gelatine hydrophobic, or with a silver halide developer if it is a fogged gelatino silver halide interlayer. The heat-sensitive layer is then removed by rubbing in water to leave the dye or silver image or a printing plate. Multicoloured images may be produced by exposing the material to a yellow colour separation negative and developing with an aqueous solution of a yellow dye and then removing the heat-sensitive layer and recoating, re-exposing and re-developing to produce a magenta image and then repeating those steps to produce a cyan image.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB47627/66A GB1208415A (en) | 1966-10-24 | 1966-10-24 | Improvements relating to thermo-copying |
NL6714351A NL6714351A (en) | 1966-10-24 | 1967-10-23 | |
US677764A US3615423A (en) | 1966-10-24 | 1967-10-24 | Thermocopying |
BE705530D BE705530A (en) | 1966-10-24 | 1967-10-24 | |
DE19671671521 DE1671521A1 (en) | 1966-10-24 | 1967-10-24 | Thermal copying process |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB47627/66A GB1208415A (en) | 1966-10-24 | 1966-10-24 | Improvements relating to thermo-copying |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1208415A true GB1208415A (en) | 1970-10-14 |
Family
ID=10445680
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB47627/66A Expired GB1208415A (en) | 1966-10-24 | 1966-10-24 | Improvements relating to thermo-copying |
Country Status (5)
Country | Link |
---|---|
US (1) | US3615423A (en) |
BE (1) | BE705530A (en) |
DE (1) | DE1671521A1 (en) |
GB (1) | GB1208415A (en) |
NL (1) | NL6714351A (en) |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2273366A (en) * | 1992-11-18 | 1994-06-15 | Du Pont | Forming images on radiation sensitive plates |
EP0881094A1 (en) * | 1997-05-27 | 1998-12-02 | Agfa-Gevaert N.V. | A heat sensitive imaging element and a method for producing lithographic plates therewith |
EP0914941A1 (en) * | 1997-11-07 | 1999-05-12 | Agfa-Gevaert N.V. | A method for making positive working printing plates from heat mode sensitive imaging element |
EP0940266A1 (en) * | 1998-03-06 | 1999-09-08 | Agfa-Gevaert N.V. | A heat mode sensitive imaging element for making positive working printing plates. |
EP0943451A1 (en) * | 1998-03-14 | 1999-09-22 | Agfa-Gevaert N.V. | A method for making positive working printing plates from a heat mode sensitive imaging element |
EP0950517A1 (en) * | 1998-04-15 | 1999-10-20 | Agfa-Gevaert N.V. | A heat mode sensitive imaging element for making positive working printing plates |
EP0950513A1 (en) * | 1998-04-15 | 1999-10-20 | Agfa-Gevaert N.V. | A heat mode sensitive imaging element for making positive working printing plates |
EP0950518A1 (en) * | 1998-04-15 | 1999-10-20 | Agfa-Gevaert N.V. | A heat mode sensitive imaging element for making positive working printing plates |
US6106996A (en) * | 1997-05-27 | 2000-08-22 | Agfa-Gevaert, N.V. | Heat sensitive imaging element and a method for producing lithographic plates therewith |
US6153353A (en) * | 1998-03-14 | 2000-11-28 | Agfa-Gevaert, N.V. | Method for making positive working printing plates from a heat mode sensitive imaging element |
US6192799B1 (en) | 1998-04-15 | 2001-02-27 | Agfa-Gevaert, N.V. | Heat mode sensitive imaging element for making positive working printing plates |
US6248503B1 (en) | 1997-11-07 | 2001-06-19 | Agfa-Gevaert | Method for making positive working printing plates from a heat mode sensitive imaging element |
US6342336B2 (en) | 1998-03-06 | 2002-01-29 | Agfa-Gevaert | Heat mode sensitive imaging element for making positive working printing plates |
US6447977B2 (en) | 1998-04-15 | 2002-09-10 | Agfa-Gevaert | Heat mode sensitive imaging element for making positive working printing plates |
US6569594B2 (en) | 1998-04-15 | 2003-05-27 | Agfa-Gevaert | Heat mode sensitive imaging element for making positive working printing plates |
DE69901642T3 (en) | 1998-03-14 | 2019-03-21 | Agfa Nv | A process for producing a positive-working printing plate from a thermosensitive image-recording material |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3871065A (en) * | 1972-08-02 | 1975-03-18 | Gen Co Ltd | Thermal printing process |
GB1456208A (en) * | 1972-12-28 | 1976-11-24 | Agfa Gevaert | Thermographic processes and recording material for use therein |
EP0864420B2 (en) * | 1997-03-11 | 2005-11-16 | Agfa-Gevaert | Heat-sensitive imaging element for making positive working printing plates |
-
1966
- 1966-10-24 GB GB47627/66A patent/GB1208415A/en not_active Expired
-
1967
- 1967-10-23 NL NL6714351A patent/NL6714351A/xx unknown
- 1967-10-24 BE BE705530D patent/BE705530A/xx unknown
- 1967-10-24 US US677764A patent/US3615423A/en not_active Expired - Lifetime
- 1967-10-24 DE DE19671671521 patent/DE1671521A1/en active Pending
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2273366B (en) * | 1992-11-18 | 1996-03-27 | Du Pont | Forming images on radiation-sensitive plates |
GB2273366A (en) * | 1992-11-18 | 1994-06-15 | Du Pont | Forming images on radiation sensitive plates |
US6106996A (en) * | 1997-05-27 | 2000-08-22 | Agfa-Gevaert, N.V. | Heat sensitive imaging element and a method for producing lithographic plates therewith |
EP0881094A1 (en) * | 1997-05-27 | 1998-12-02 | Agfa-Gevaert N.V. | A heat sensitive imaging element and a method for producing lithographic plates therewith |
EP0914941A1 (en) * | 1997-11-07 | 1999-05-12 | Agfa-Gevaert N.V. | A method for making positive working printing plates from heat mode sensitive imaging element |
US6248503B1 (en) | 1997-11-07 | 2001-06-19 | Agfa-Gevaert | Method for making positive working printing plates from a heat mode sensitive imaging element |
EP0940266A1 (en) * | 1998-03-06 | 1999-09-08 | Agfa-Gevaert N.V. | A heat mode sensitive imaging element for making positive working printing plates. |
US6342336B2 (en) | 1998-03-06 | 2002-01-29 | Agfa-Gevaert | Heat mode sensitive imaging element for making positive working printing plates |
US6153353A (en) * | 1998-03-14 | 2000-11-28 | Agfa-Gevaert, N.V. | Method for making positive working printing plates from a heat mode sensitive imaging element |
EP0943451A1 (en) * | 1998-03-14 | 1999-09-22 | Agfa-Gevaert N.V. | A method for making positive working printing plates from a heat mode sensitive imaging element |
DE69901642T3 (en) | 1998-03-14 | 2019-03-21 | Agfa Nv | A process for producing a positive-working printing plate from a thermosensitive image-recording material |
EP0950513A1 (en) * | 1998-04-15 | 1999-10-20 | Agfa-Gevaert N.V. | A heat mode sensitive imaging element for making positive working printing plates |
EP0950518A1 (en) * | 1998-04-15 | 1999-10-20 | Agfa-Gevaert N.V. | A heat mode sensitive imaging element for making positive working printing plates |
EP0950517A1 (en) * | 1998-04-15 | 1999-10-20 | Agfa-Gevaert N.V. | A heat mode sensitive imaging element for making positive working printing plates |
US6192799B1 (en) | 1998-04-15 | 2001-02-27 | Agfa-Gevaert, N.V. | Heat mode sensitive imaging element for making positive working printing plates |
US6447977B2 (en) | 1998-04-15 | 2002-09-10 | Agfa-Gevaert | Heat mode sensitive imaging element for making positive working printing plates |
US6569594B2 (en) | 1998-04-15 | 2003-05-27 | Agfa-Gevaert | Heat mode sensitive imaging element for making positive working printing plates |
Also Published As
Publication number | Publication date |
---|---|
US3615423A (en) | 1971-10-26 |
NL6714351A (en) | 1968-03-25 |
BE705530A (en) | 1968-04-24 |
DE1671521A1 (en) | 1971-09-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
435 | Patent endorsed 'licences of right' on the date specified (sect. 35/1949) | ||
PLNP | Patent lapsed through nonpayment of renewal fees |