GB1208415A - Improvements relating to thermo-copying - Google Patents

Improvements relating to thermo-copying

Info

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
Application number
GB47627/66A
Inventor
Marcel Nicolas Vrancken
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Agfa Gevaert NV
Original Assignee
Agfa Gevaert NV
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Agfa Gevaert NV filed Critical Agfa Gevaert NV
Priority to GB47627/66A priority Critical patent/GB1208415A/en
Priority to NL6714351A priority patent/NL6714351A/xx
Priority to BE705530D priority patent/BE705530A/xx
Priority to US677764A priority patent/US3615423A/en
Priority to DE19671671521 priority patent/DE1671521A1/en
Publication of GB1208415A publication Critical patent/GB1208415A/en
Expired legal-status Critical Current

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

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.
GB47627/66A 1966-10-24 1966-10-24 Improvements relating to thermo-copying Expired GB1208415A (en)

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
BE705530D BE705530A (en) 1966-10-24 1967-10-24
US677764A US3615423A (en) 1966-10-24 1967-10-24 Thermocopying
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)

* Cited by examiner, † Cited by third party
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
EP0950518A1 (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
EP0950517A1 (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)

* Cited by examiner, † Cited by third party
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

Cited By (17)

* Cited by examiner, † Cited by third party
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
EP0950517A1 (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
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
NL6714351A (en) 1968-03-25
DE1671521A1 (en) 1971-09-30
BE705530A (en) 1968-04-24
US3615423A (en) 1971-10-26

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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