GB998533A - Infrared imaging of lithographic printing plates - Google Patents

Infrared imaging of lithographic printing plates

Info

Publication number
GB998533A
GB998533A GB4858/62A GB485862A GB998533A GB 998533 A GB998533 A GB 998533A GB 4858/62 A GB4858/62 A GB 4858/62A GB 485862 A GB485862 A GB 485862A GB 998533 A GB998533 A GB 998533A
Authority
GB
United Kingdom
Prior art keywords
donor sheet
infra
red
transfer
plate
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
GB4858/62A
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.)
Columbia Ribbon and Carbon Manufacturing Co Inc
Original Assignee
Columbia Ribbon and Carbon Manufacturing Co Inc
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 Columbia Ribbon and Carbon Manufacturing Co Inc filed Critical Columbia Ribbon and Carbon Manufacturing Co Inc
Publication of GB998533A publication Critical patent/GB998533A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
    • B41C1/00—Forme preparation
    • B41C1/10—Forme preparation for lithographic printing; Master sheets for transferring a lithographic image to the forme
    • B41C1/1091—Forme preparation for lithographic printing; Master sheets for transferring a lithographic image to the forme by physical transfer from a donor sheet having an uniform coating of lithographic material using thermal means as provided by a thermal head or a laser; by mechanical pressure, e.g. from a typewriter by electrical recording ribbon therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Optics & Photonics (AREA)
  • Manufacturing & Machinery (AREA)
  • Printing Plates And Materials Therefor (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)

Abstract

998, 533. Thermographically imaging lithographic plates. COLUMBIA RIBBON & CARBON MANUFACTURING CO. Inc. Feb. 8, 1962 [Feb. 13, 1961], No. 4858/62. Heading G2C. The working surface of a lithographic plate 30 is imaged with oleophilic material by contacting it with a donor sheet 10 which is translucent to infra-red and provided on the contacting surface with an imagewise distribution 11a of infra-red absorbing oleophilic material, directing a sufficient quantity of radiation rich in infra-red against the donor sheet to melt the imaging composition and cause it to adhere to the working surface of the plate, and finally separating the plate and donor sheet. The donor sheet may be imaged by pressure transfer, as by means of a typewriter, from the transfer layer of a transfer sheet. The transfer material of the imaging transfer layer preferably has a melting range over several degrees F.within the temperature range of 100‹ to 250‹F. and may comprise a mixture of natural or artificial waxes together with polyisobutylene or chlorinated rubber and a vegetable or mineral oil and optionally lanolin, and nigrosine with or without carbon black. The donor sheet 10 may be of paper or regenerated cellulose or polyethylene terephthalate film; the radiation source may be an infra-red lamp, a carbon arc, or a photographic flash lamp; and the hydrosphilic working surface of the lithographic plate may be produced from carboxymethyl cellulose, sodium alginale, gelatin, or zein.
GB4858/62A 1961-02-13 1962-02-08 Infrared imaging of lithographic printing plates Expired GB998533A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US88745A US3203344A (en) 1961-02-13 1961-02-13 Lithographic printing plate imaging process

Publications (1)

Publication Number Publication Date
GB998533A true GB998533A (en) 1965-07-14

Family

ID=22213201

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4858/62A Expired GB998533A (en) 1961-02-13 1962-02-08 Infrared imaging of lithographic printing plates

Country Status (3)

Country Link
US (1) US3203344A (en)
DE (1) DE1206917B (en)
GB (1) GB998533A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4440590A (en) * 1977-10-04 1984-04-03 Letraset Corp. Manufacture of signs

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3682095A (en) * 1970-05-22 1972-08-08 Olivetti & Co Spa Duplicating machine

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2243078A (en) * 1938-02-04 1941-05-27 Ditto Inc Transfer sheet and composition for producing reinkable impressions
FR959035A (en) * 1946-09-23 1950-03-23
US2721821A (en) * 1951-02-02 1955-10-25 Dick Co Ab Printed plastics and method for producing same
US2808777A (en) * 1952-02-26 1957-10-08 Dick Co Ab Method for manufacturing duplicating masters
NL103022C (en) * 1955-11-21
US2954311A (en) * 1957-09-25 1960-09-27 Weel Walter H Vander Method for copying indicia by particle transfer
US3122997A (en) * 1958-04-04 1964-03-03 Figure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4440590A (en) * 1977-10-04 1984-04-03 Letraset Corp. Manufacture of signs

Also Published As

Publication number Publication date
US3203344A (en) 1965-08-31
DE1206917B (en) 1965-12-16

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