IT961879B - Perfezionamento negli inchiostri invisibili e procedimento di produzione nonche modulo stampato con inchiostro invisibile partico larmente adatto come sussidio didattico - Google Patents

Perfezionamento negli inchiostri invisibili e procedimento di produzione nonche modulo stampato con inchiostro invisibile partico larmente adatto come sussidio didattico

Info

Publication number
IT961879B
IT961879B IT52001/72A IT5200172A IT961879B IT 961879 B IT961879 B IT 961879B IT 52001/72 A IT52001/72 A IT 52001/72A IT 5200172 A IT5200172 A IT 5200172A IT 961879 B IT961879 B IT 961879B
Authority
IT
Italy
Prior art keywords
invisible
improvement
well
production process
particularly suitable
Prior art date
Application number
IT52001/72A
Other languages
English (en)
Italian (it)
Original Assignee
Minnesota Mining & Mfg
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 & Mfg filed Critical Minnesota Mining & Mfg
Application granted granted Critical
Publication of IT961879B publication Critical patent/IT961879B/it

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D11/00—Inks
    • C09D11/50—Sympathetic, colour changing or similar inks
    • 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
    • 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
    • Y10S283/00—Printed matter
    • Y10S283/901—Concealed data

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)
  • Color Printing (AREA)
IT52001/72A 1971-08-05 1972-08-04 Perfezionamento negli inchiostri invisibili e procedimento di produzione nonche modulo stampato con inchiostro invisibile partico larmente adatto come sussidio didattico IT961879B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00169524A US3850649A (en) 1971-08-05 1971-08-05 Latent image printing

Publications (1)

Publication Number Publication Date
IT961879B true IT961879B (it) 1973-12-10

Family

ID=22616061

Family Applications (1)

Application Number Title Priority Date Filing Date
IT52001/72A IT961879B (it) 1971-08-05 1972-08-04 Perfezionamento negli inchiostri invisibili e procedimento di produzione nonche modulo stampato con inchiostro invisibile partico larmente adatto come sussidio didattico

Country Status (7)

Country Link
US (1) US3850649A (enExample)
JP (1) JPS5545589B1 (enExample)
CA (1) CA974004A (enExample)
DE (1) DE2239177C2 (enExample)
FR (1) FR2148274B1 (enExample)
GB (1) GB1398334A (enExample)
IT (1) IT961879B (enExample)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4043820A (en) * 1975-06-10 1977-08-23 Ozalid Group Holdings, Limited Ink containing iron chelate and polyhydroxy compound
US4111462A (en) * 1975-07-15 1978-09-05 Minnesota Mining And Manufacturing Company Latent, sensitizing ink
US4079026A (en) * 1977-06-20 1978-03-14 Hercules Incorporated Printing inks and process for using the same
JPS6054197B2 (ja) * 1978-01-05 1985-11-29 富士写真フイルム株式会社 顕色インキ
US4525214A (en) * 1983-03-11 1985-06-25 The Mazer Corporation Crayon adapted for development of latent images
US4505944A (en) * 1983-08-01 1985-03-19 Cotton Incorporated Fugitive ink composition
US4852912A (en) * 1986-08-05 1989-08-01 Peter Engel Advertising device
JPH0323984A (ja) * 1989-06-20 1991-01-31 Seiji Kawashima 印刷物
CA2056283A1 (en) * 1991-11-27 1992-05-26 Jacqueline M. Saville Latent image ink
US5330231A (en) * 1993-07-12 1994-07-19 Godfrey Phyllis M Greeting card with personal identifier and method of producing
US6312121B1 (en) 1998-09-11 2001-11-06 Xerox Corporation Ink jet printing process
US20050275214A1 (en) * 2004-06-14 2005-12-15 Joshua Pokempner Printed materials with color-change inks to create unique designs
US20110120333A1 (en) * 2009-11-23 2011-05-26 Michael Karp Direct inkjet imaging lithographic plates and methods for imaging the plates
US9421751B2 (en) 2009-11-23 2016-08-23 Vim-Technologies Ltd Direct inkjet imaging lithographic plates, methods for imaging and pre-press treatment
US20120274914A1 (en) * 2011-04-27 2012-11-01 Palo Alto Research Center Incorporated Variable Data Lithography System for Applying Multi-Component Images and Systems Therefor

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3108896A (en) * 1959-10-26 1963-10-29 Minnesota Mining & Mfg Heat-sensitive copying-paper
DE1622462A1 (enExample) * 1960-10-11
US3147134A (en) * 1961-10-12 1964-09-01 Minnesota Mining & Mfg Heat-sensitive copy sheet
NL286305A (enExample) * 1961-12-16
NL287454A (enExample) * 1962-01-18
US3363337A (en) * 1965-12-10 1968-01-16 Meredith Publishing Company Method and devices for teaching writing skills
US3451143A (en) * 1966-08-24 1969-06-24 Dick Co Ab Spirit duplication with visible and concealed images
US3438927A (en) * 1967-04-28 1969-04-15 Meredith Publishing Co Invisible ink
US3516177A (en) * 1968-02-14 1970-06-23 Meredith Corp Teaching device with invisible answer indicator
DE1946404A1 (de) * 1969-01-17 1970-09-03 Meredith Corp Mittel zum Entwickeln von unsichtbaren Bildern und Zeichen auf mit unsichtbarer Druckfarbe bedruckten Erzeugnissen
DE1946374A1 (de) * 1969-04-14 1970-11-26 Meredith Corp Entwicklermasse zur Entwicklung von unsichtbaren Druckerzeugnissen
US3666502A (en) * 1970-04-27 1972-05-30 Gustaf L Erikson Lithographic inks and solutions for treating lithographic plates

Also Published As

Publication number Publication date
JPS5545589B1 (enExample) 1980-11-18
GB1398334A (en) 1975-06-18
FR2148274A1 (enExample) 1973-03-11
US3850649A (en) 1974-11-26
DE2239177A1 (de) 1973-02-15
DE2239177C2 (de) 1982-10-14
CA974004A (en) 1975-09-09
FR2148274B1 (enExample) 1977-07-29

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