NO136400C - Trekomponentsystem for trykte kopieringsark med en skjult avbildning og for utvikling av den skjulte avbildning p} kopieringsarkene. - Google Patents

Trekomponentsystem for trykte kopieringsark med en skjult avbildning og for utvikling av den skjulte avbildning p} kopieringsarkene.

Info

Publication number
NO136400C
NO136400C NO76760599A NO760599A NO136400C NO 136400 C NO136400 C NO 136400C NO 76760599 A NO76760599 A NO 76760599A NO 760599 A NO760599 A NO 760599A NO 136400 C NO136400 C NO 136400C
Authority
NO
Norway
Prior art keywords
copy sheets
hidden image
developing
component system
printed
Prior art date
Application number
NO76760599A
Other languages
English (en)
Norwegian (no)
Other versions
NO136400B (https=
NO760599L (https=
Inventor
Richard E Thomas
Robert T Florence
Rustom H Dalal
Raymond I Scheuer
Original Assignee
Dick Co Ab
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
Priority claimed from NO3496/69A external-priority patent/NO136345C/no
Publication of NO760599L publication Critical patent/NO760599L/no
Application filed by Dick Co Ab filed Critical Dick Co Ab
Priority to NO76760599A priority Critical patent/NO136400C/no
Publication of NO136400B publication Critical patent/NO136400B/no
Publication of NO136400C publication Critical patent/NO136400C/no

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
    • B41M3/001—Printing processes to produce particular kinds of printed work, e.g. patterns using chemical colour-formers or chemical reactions, e.g. leuco dyes or acids
    • 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
    • B41M5/025—Duplicating or marking methods; Sheet materials for use therein by transferring ink from the master sheet
    • B41M5/0253—Duplicating 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
    • 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
    • B41M5/025—Duplicating or marking methods; Sheet materials for use therein by transferring ink from the master sheet
    • B41M5/04—Duplicating or marking methods; Sheet materials for use therein by transferring ink from the master sheet using solvent-soluble dyestuffs on the master sheets, e.g. alcohol-soluble

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Printing Methods (AREA)
NO76760599A 1968-09-03 1976-02-23 Trekomponentsystem for trykte kopieringsark med en skjult avbildning og for utvikling av den skjulte avbildning p} kopieringsarkene. NO136400C (no)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NO76760599A NO136400C (no) 1968-09-03 1976-02-23 Trekomponentsystem for trykte kopieringsark med en skjult avbildning og for utvikling av den skjulte avbildning p} kopieringsarkene.

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US75706768A 1968-09-03 1968-09-03
NO3496/69A NO136345C (no) 1968-09-03 1969-09-02 Trekomponentsystem for trykte kopieringsark med en skjult avbildning og for utvikling av den skjulte avbildning p} kopieringsarkene
NO76760599A NO136400C (no) 1968-09-03 1976-02-23 Trekomponentsystem for trykte kopieringsark med en skjult avbildning og for utvikling av den skjulte avbildning p} kopieringsarkene.

Publications (3)

Publication Number Publication Date
NO760599L NO760599L (https=) 1970-03-04
NO136400B NO136400B (https=) 1977-05-23
NO136400C true NO136400C (no) 1977-08-31

Family

ID=27352641

Family Applications (1)

Application Number Title Priority Date Filing Date
NO76760599A NO136400C (no) 1968-09-03 1976-02-23 Trekomponentsystem for trykte kopieringsark med en skjult avbildning og for utvikling av den skjulte avbildning p} kopieringsarkene.

Country Status (1)

Country Link
NO (1) NO136400C (https=)

Also Published As

Publication number Publication date
NO136400B (https=) 1977-05-23
NO760599L (https=) 1970-03-04

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