GB1112389A - Improvements relating to copying processes - Google Patents

Improvements relating to copying processes

Info

Publication number
GB1112389A
GB1112389A GB40737/64A GB4073764A GB1112389A GB 1112389 A GB1112389 A GB 1112389A GB 40737/64 A GB40737/64 A GB 40737/64A GB 4073764 A GB4073764 A GB 4073764A GB 1112389 A GB1112389 A GB 1112389A
Authority
GB
United Kingdom
Prior art keywords
sheet
oil
master
developed
original
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
GB40737/64A
Inventor
Abram Games
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.)
IMAGIC PROCESS Ltd
Original Assignee
IMAGIC PROCESS Ltd
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 IMAGIC PROCESS Ltd filed Critical IMAGIC PROCESS Ltd
Priority to GB40737/64A priority Critical patent/GB1112389A/en
Priority to DE19651546747 priority patent/DE1546747A1/en
Priority to US492782A priority patent/US3490371A/en
Priority to NL6512888A priority patent/NL6512888A/xx
Publication of GB1112389A publication Critical patent/GB1112389A/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
    • B41M5/398—Processes based on the production of stickiness patterns using powders

Abstract

1,112,389. Printing processes. IMAGIC PROCESS Ltd. 24 Sept., 1965 [6 Oct., 1964], No. 40737/64. Heading B6C. In a method of producing a master to give a number of copies of an original design oil is caused to evaporate under the influence of heat over areas representative of the original design and to condense and form a latent image on a sheet of material, e.g. tissue paper, which is sufficiently thin and porous for the oil defining the latent image to penetrate the sheet at least to an extent sufficient to permit development on the side of the sheet remote from the original, after which the image is developed on both sides of the sheet to give a double-sided master. The original design may be on a translucent sheet to both sides of which a film of oil is applied, the evaporated oil being caused to condense simultaneously on two thin poroous sheets one on each side of the original, on both of which the latent images are developed on both sides to give two double-sided masters. In order to obtain two further copies simultaneously with the two double-sided masters a further sheet is placed in contact with the side of each master sheet remote from the original, each sheet being such as to permit oil to pass through it and to form a latent image on each further sheet which is also developed. If the images on the doublesided master are developed with an ink including a high proportion of heat-responsive material and also oil for the subsequent step of evaporation and the developed images lightly fused, each image may be used to produce up to thirty copies solely through the application of heat. A negative may be produced from a double-sided master by applying mineral oil to the side having the right reading image. This is placed face downward on a black heatabsorbent but non-oil absorbent support and a sheet of infra-red-transmitting bond paper is placed over the uppermost side bearing the mirror image, after which the combination is exposed to heat through the bond sheet. The inked areas of the master constitute a mask and oil passes through the non-inked areas and condenses on the bond sheet to form a latent image corresponding to the non-inked areas of the master. This latent image was developed and fused to produce a negative copy of the original.
GB40737/64A 1964-10-06 1964-10-06 Improvements relating to copying processes Expired GB1112389A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB40737/64A GB1112389A (en) 1964-10-06 1964-10-06 Improvements relating to copying processes
DE19651546747 DE1546747A1 (en) 1964-10-06 1965-09-28 A method of making a master copy, a plurality of copies from an original using the master copy, and a negative copy from an original using the master copy
US492782A US3490371A (en) 1964-10-06 1965-10-04 Copying processes
NL6512888A NL6512888A (en) 1964-10-06 1965-10-05

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB40737/64A GB1112389A (en) 1964-10-06 1964-10-06 Improvements relating to copying processes

Publications (1)

Publication Number Publication Date
GB1112389A true GB1112389A (en) 1968-05-01

Family

ID=10416364

Family Applications (1)

Application Number Title Priority Date Filing Date
GB40737/64A Expired GB1112389A (en) 1964-10-06 1964-10-06 Improvements relating to copying processes

Country Status (4)

Country Link
US (1) US3490371A (en)
DE (1) DE1546747A1 (en)
GB (1) GB1112389A (en)
NL (1) NL6512888A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3649332A (en) * 1969-10-24 1972-03-14 Minnesota Mining & Mfg Color printing
BE758057A (en) * 1969-10-29 1971-04-27 Xerox Corp STEAM PROPULSION PRINTING
FR2176318A5 (en) * 1972-03-17 1973-10-26 Lemaire & Cie
CH579674B5 (en) * 1973-05-11 1976-09-15 Sublistatic Holding Sa
US3949574A (en) * 1973-07-20 1976-04-13 Richard Donovan Glover Sublimatic printing machine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3121650A (en) * 1960-07-28 1964-02-18 Minnesota Mining & Mfg Right-reading reproduction of printed originals
DE1249089B (en) * 1962-04-04 1967-08-31
US3280735A (en) * 1964-04-13 1966-10-25 Minnesota Mining & Mfg Heat-copying process

Also Published As

Publication number Publication date
NL6512888A (en) 1966-04-07
DE1546747A1 (en) 1970-10-15
US3490371A (en) 1970-01-20

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