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GB867508A - Improvements in or relating to duplicating - Google Patents

Improvements in or relating to duplicating

Info

Publication number
GB867508A
GB867508A GB4318060A GB4318060A GB867508A GB 867508 A GB867508 A GB 867508A GB 4318060 A GB4318060 A GB 4318060A GB 4318060 A GB4318060 A GB 4318060A GB 867508 A GB867508 A GB 867508A
Authority
GB
United Kingdom
Prior art keywords
ethanol
duplicating
relating
humectant
glycerine
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
GB4318060A
Inventor
Douglas A Newman
Allan T Schlotzha Schlotzhauer
Harrison W Boylan
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 GB867508A publication Critical patent/GB867508A/en
Expired legal-status Critical Current

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
    • B41M5/025Duplicating or marking methods; Sheet materials for use therein by transferring ink from the master sheet
    • B41M5/0253Duplicating or marking methods; Sheet materials for use therein by transferring ink from the master sheet using a chemical colour-forming ink, e.g. chemical hectography

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Color Printing (AREA)
  • Impression-Transfer Materials And Handling Thereof (AREA)

Abstract

867,508. Reactive transfer duplicating paper. COLUMBIA RIBBON & CARBON MANUFACTURING CO. Inc. April 9, 1957, No. 43180/60. Divided out of and Addition to 867,507. Class 96. The invention of the parent Specification is modified in that the organic compound of low colour transfer value is gallic acid or tannic acid and the copy sheet also contains an humectant, e.g. glycerine or a solution of methanol, ethanol, 2-ethoxy ethanol and water, in the surface deposit thereon.
GB4318060A 1957-04-09 1957-04-09 Improvements in or relating to duplicating Expired GB867508A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4318057 1957-04-09

Publications (1)

Publication Number Publication Date
GB867508A true GB867508A (en) 1961-05-10

Family

ID=10427659

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4318060A Expired GB867508A (en) 1957-04-09 1957-04-09 Improvements in or relating to duplicating

Country Status (1)

Country Link
GB (1) GB867508A (en)

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