GB1177482A - Improvements relating to Thermographic Recording. - Google Patents

Improvements relating to Thermographic Recording.

Info

Publication number
GB1177482A
GB1177482A GB135166A GB135166A GB1177482A GB 1177482 A GB1177482 A GB 1177482A GB 135166 A GB135166 A GB 135166A 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
Application number
GB135166A
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 GB135166A priority Critical patent/GB1177482A/en
Publication of GB1177482A publication Critical patent/GB1177482A/en
Application status is Expired legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41MPRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00Duplicating or marking methods; Sheet materials for use therein
    • B41M5/26Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
    • B41M5/36Thermography ; 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
    • B41M5/366Thermography ; 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

1,177,482. 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.
GB135166A 1966-01-11 1966-01-11 Improvements relating to Thermographic Recording. Expired GB1177482A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB135166A GB1177482A (en) 1966-01-11 1966-01-11 Improvements relating to Thermographic Recording.

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
GB135166A GB1177482A (en) 1966-01-11 1966-01-11 Improvements relating to Thermographic Recording.
DE19671671515 DE1671515A1 (en) 1966-01-11 1967-01-07 The thermographic reproduction process
CH29467A CH469571A (en) 1966-01-11 1967-01-10 The thermographic reproduction process
NL6700358A NL6700358A (en) 1966-01-11 1967-01-10
FR90953A FR1507875A (en) 1966-01-11 1967-01-10 Reproduction of a transparent original halftone in the form of a raster image
BE692423D BE692423A (en) 1966-01-11 1967-01-11
US3564597D US3564597A (en) 1966-01-11 1967-01-11 Thermographic recording process for reproducing continuous tone transparencies

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
GB135166A 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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
CH469571A (en) 1969-03-15
NL6700358A (en) 1967-06-26
BE692423A (en) 1967-07-11
FR1507875A (en) 1967-12-29
DE1671515A1 (en) 1970-11-05
US3564597A (en) 1971-02-16

Similar Documents

Publication Publication Date Title
CA995957A (en) Photographic materials and processes
GB1263575A (en) Photographic direct print-out films
GB1048367A (en) Micro-image film laminate
CA947075A (en) Recording sheet and color developer therefor
ZA7207418B (en) Improved light scanning and printing system
CA939148A (en) Printing and copying employing materials with surface variations
GB1333783A (en) Printing by vapour propulsion
GB997361A (en) Heat-sensitive copy sheets
US2740896A (en) Method of using heat sensitive copying paper
JPH01161236A (en) Image forming method
US2305799A (en) Photographic material
AU451588B2 (en) Sheet material rendered light sensitive on heating
CA993251A (en) Photographic light-sensitive and heat developable material
GB1239702A (en)
AU463075B2 (en) Improved photographic dye image stabilizer-solvent
AU3106471A (en) Light-sensitive copying composition and copying material produced therewith
AU465154B2 (en) Method and apparatus for enhancing the transferability ofa developed image
JPS53112732A (en) Photosensitive material with improved physical properties of film
JPS59177541A (en) Photographic printing material
CA997191A (en) Focus responsive exposure control system
GB1362017A (en) Photographic dye diffusion transfer process
CA968024A (en) Printing apparatus and method with improved toning liquid control
SE7609188L (en) Thermographic plate angling of temperaturfordelningar
GB1154716A (en) Light-Sensitive Sheet
US3811773A (en) Thermographic copying