GB943992A - Improved thermographic method of copying - Google Patents

Improved thermographic method of copying

Info

Publication number
GB943992A
GB943992A GB35379/59A GB3537959A GB943992A GB 943992 A GB943992 A GB 943992A GB 35379/59 A GB35379/59 A GB 35379/59A GB 3537959 A GB3537959 A GB 3537959A GB 943992 A GB943992 A GB 943992A
Authority
GB
United Kingdom
Prior art keywords
heat
copying
radiation
acetone
sensitive
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
GB35379/59A
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.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing Co
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 Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Publication of GB943992A publication Critical patent/GB943992A/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
    • B41M5/382—Contact thermal transfer or sublimation processes
    • B41M5/38235—Contact thermal transfer or sublimation processes characterised by transferable colour-forming materials
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S101/00—Printing
    • Y10S101/29—Printing involving a color-forming phenomenon

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)
  • Heat Sensitive Colour Forming Recording (AREA)

Abstract

943,992. Thermographic copying. MINNESOTA MINING & MANUFACTURING CO. Oct. 19, 1959 [Oct. 20, 1958], No. 35379/59. Heading G2C. Copies of a graphic original that has a radiation absorptive pattern are made by exposing the original to a brief intensive irradiation through a heat-sensitive copying sheet in heat-conductive contact therewith, the copying sheet comprising a heat-resistant radiation-transmitting support web and a substantially completely heat-transferable radiation-transmitting visibly heat-sensitive coating thereon which upon heating is rendered radiation absorptive and readily transferable from the web on heating to a higher temperature, and thereafter placing the copy sheet in intimate heat-sensitive contact with a receptor surface and exposing them to a further brief irradiation. The copying sheet may be (1) a polyester foil or a polyvinyl chloride foil coated with a transparentizing silicone oil and then with a dispersion in acetone of ferric stearate, ethyl cellulose, triphenyl phosphate and either a polymeric reaction product of acetone and pyrogallol or tertiary butyl catechol, or (2) a polyester foil coated with a transparentizing silicone oil and then with a dispersion in acetone of silver behenate, polyethylmethacrylate,tricresylphosphate andphotocatechnic acid, while the receptor surface may be a smooth clay-loaded heavily calendered paper coated with a thin layer of polyvinyl alcohol.
GB35379/59A 1958-10-20 1959-10-19 Improved thermographic method of copying Expired GB943992A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US768008A US3103881A (en) 1958-10-20 1958-10-20 Method of copying

Publications (1)

Publication Number Publication Date
GB943992A true GB943992A (en) 1963-12-11

Family

ID=25081246

Family Applications (1)

Application Number Title Priority Date Filing Date
GB35379/59A Expired GB943992A (en) 1958-10-20 1959-10-19 Improved thermographic method of copying

Country Status (4)

Country Link
US (1) US3103881A (en)
DE (1) DE1145643B (en)
ES (1) ES252678A1 (en)
GB (1) GB943992A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL252087A (en) * 1959-05-28
US3284197A (en) * 1961-11-06 1966-11-08 Interchem Corp Method for making lithographic plates
US3481760A (en) * 1964-04-13 1969-12-02 Minnesota Mining & Mfg Thermographic copying sheets
NL134969C (en) * 1965-04-21
US4091727A (en) * 1973-08-03 1978-05-30 Asahi Dow Limited Heat-sensitive copying method for preparation of printing stencils
US4270449A (en) * 1978-03-02 1981-06-02 Toppan Printing Co., Ltd. Method of printing plastic surfaces
US6063528A (en) * 1997-05-20 2000-05-16 Morgan; David A. Thermosensitive composition
US5958647A (en) * 1997-05-20 1999-09-28 Morgan; David A. Thermosensitive etch resist for forming a mask

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2503758A (en) * 1947-08-16 1950-04-11 Eastman Kodak Co Fusion photothermography
FR959035A (en) * 1946-09-23 1950-03-23
USRE24554E (en) * 1951-02-02 1958-10-21 Heat-sensitive copying-paper
US2769391A (en) * 1951-11-14 1956-11-06 Dick Co Ab Method of manufacturing imaged hectograph spirit master
US2764085A (en) * 1952-01-10 1956-09-25 Dick Co Ab Masters for planographic printing
US2808777A (en) * 1952-02-26 1957-10-08 Dick Co Ab Method for manufacturing duplicating masters
US2800077A (en) * 1952-03-27 1957-07-23 Dick Co Ab Planographic printing plates and methods for manufacturing same
CA535267A (en) * 1952-05-15 1957-01-01 Minnesota Mining And Manufacturing Company Physical-mixture heat-sensitive copying-paper
US2663655A (en) * 1952-05-15 1953-12-22 Minnesota Mining & Mfg Heat-sensitive copying paper
US2749253A (en) * 1952-05-20 1956-06-05 Dick Co Ab Method of making a copy sheet and resultant article
BE546394A (en) * 1955-03-28
BE560956A (en) * 1956-04-02
BE558766A (en) * 1956-06-28 1900-01-01
US2916395A (en) * 1958-07-21 1959-12-08 Minnesota Mining & Mfg Heat-sensitive copy-paper

Also Published As

Publication number Publication date
ES252678A1 (en) 1960-03-16
DE1145643B (en) 1963-03-21
US3103881A (en) 1963-09-17

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