GB658379A - Record material for the production of visible records - Google Patents

Record material for the production of visible records

Info

Publication number
GB658379A
GB658379A GB22194/49A GB2219449A GB658379A GB 658379 A GB658379 A GB 658379A GB 22194/49 A GB22194/49 A GB 22194/49A GB 2219449 A GB2219449 A GB 2219449A GB 658379 A GB658379 A GB 658379A
Authority
GB
United Kingdom
Prior art keywords
record material
paper
production
sodium
visible records
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
GB22194/49A
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.)
NCR Voyix Corp
National Cash Register Co
Original Assignee
NCR Corp
National Cash Register 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 NCR Corp, National Cash Register Co filed Critical NCR Corp
Publication of GB658379A publication Critical patent/GB658379A/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
    • B41M5/30—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using chemical colour formers
    • B41M5/323—Organic colour formers, e.g. leuco dyes
    • B41M5/327—Organic colour formers, e.g. leuco dyes with a lactone or lactam ring
    • B41M5/3275—Fluoran compounds
    • 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
    • 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
    • Y10S8/00—Bleaching and dyeing; fluid treatment and chemical modification of textiles and fibers
    • Y10S8/916—Natural fiber dyeing
    • Y10S8/919—Paper

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Heat Sensitive Colour Forming Recording (AREA)

Abstract

658,379. Recording paper actuated by heat. NATIONAL CASH REGISTER CO. Aug. 26, 1949, No. 22194. Convention date, Dec. 24, 1948. [Class 96] Paper &c. is impregnated or coated with an eosin compound of the formula : where R is e.g. CH 3 , C 2 H 6 or C 3 H 7 , to produce record material showing distinctive colouration on heating, as by a heated stylus. A mild alkali, e.g. sodium carbonate, sodium stearate, or sodium phosphate, may also be present in the paper &c.
GB22194/49A 1948-12-24 1949-08-26 Record material for the production of visible records Expired GB658379A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US6725748A 1948-12-24 1948-12-24
US207053A US2675332A (en) 1948-12-24 1951-01-20 Heat sensitive record material

Publications (1)

Publication Number Publication Date
GB658379A true GB658379A (en) 1951-10-10

Family

ID=26747665

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22194/49A Expired GB658379A (en) 1948-12-24 1949-08-26 Record material for the production of visible records

Country Status (4)

Country Link
US (1) US2675332A (en)
DE (1) DE835394C (en)
FR (1) FR1002824A (en)
GB (1) GB658379A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3243784A (en) * 1960-09-29 1966-03-29 Litton Systems Inc Microwave process and apparatus
BE638254A (en) * 1962-10-05
US3787325A (en) * 1970-11-16 1974-01-22 Ncr Alkylamino spiro {8 12-h{8 1{9 benzopyran {8 3,2f{9 {14 quinoline-12,1{40 phthalide
US4020232A (en) * 1974-05-17 1977-04-26 Mitsubishi Paper Mills, Ltd. Heat-sensitive recording sheets

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1351071A (en) * 1918-06-07 1920-08-31 Silverman Alexander Recording device
US1844199A (en) * 1928-08-30 1932-02-09 Rca Corp Pyro-recording paper

Also Published As

Publication number Publication date
FR1002824A (en) 1952-03-11
DE835394C (en) 1952-03-31
US2675332A (en) 1954-04-13

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