EP0081887B1 - Verfahren zum Auftragen einer licht-durchlässigen Schutzschicht auf ein, auf einem Substrat-geformtes, Tonerbild - Google Patents

Verfahren zum Auftragen einer licht-durchlässigen Schutzschicht auf ein, auf einem Substrat-geformtes, Tonerbild Download PDF

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Publication number
EP0081887B1
EP0081887B1 EP82201586A EP82201586A EP0081887B1 EP 0081887 B1 EP0081887 B1 EP 0081887B1 EP 82201586 A EP82201586 A EP 82201586A EP 82201586 A EP82201586 A EP 82201586A EP 0081887 B1 EP0081887 B1 EP 0081887B1
Authority
EP
European Patent Office
Prior art keywords
toner
substrate
image
protective
toner image
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
EP82201586A
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English (en)
French (fr)
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EP0081887A1 (de
Inventor
Milan Percic
Edo Reitsma
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.)
Coulter Stork Patents BV
Original Assignee
Coulter Stork Patents BV
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Filing date
Publication date
Application filed by Coulter Stork Patents BV filed Critical Coulter Stork Patents BV
Priority to AT82201586T priority Critical patent/ATE12844T1/de
Publication of EP0081887A1 publication Critical patent/EP0081887A1/de
Application granted granted Critical
Publication of EP0081887B1 publication Critical patent/EP0081887B1/de
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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G13/00—Electrographic processes using a charge pattern
    • G03G13/01—Electrographic processes using a charge pattern for multicoloured copies
    • G03G13/013—Electrographic processes using a charge pattern for multicoloured copies characterised by the developing step, e.g. the properties of the colour developers
    • G03G13/0139—Electrographic processes using a charge pattern for multicoloured copies characterised by the developing step, e.g. the properties of the colour developers developing using a step for clear toner deposition, e.g. for regulating gloss or supplying protective coatings
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G13/00—Electrographic processes using a charge pattern
    • G03G13/20—Fixing, e.g. by using heat
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G8/00—Layers covering the final reproduction, e.g. for protecting, for writing thereon

Definitions

  • the invention relates to a method for the application of a protective light-transmitting coating on a toner image formed on a substrate which is obtained by charging up a photoconductive substrate, image-wise discharging this by exposure and its development by means of pigmented toner and the subsequent transfer of the toner image obtained to a receptor substrate.
  • the present invention provides a solution for this problem.
  • a second toner image is formed with a protective light-transmitting toner, this second toner image being registered with the first image on the receptor substrate, and subsequently fixed.
  • protective toner is applied exclusively to the substrate where pigmented toner is present so that the surface portions of the substrate not provided with an image retain their original surface structure.
  • the invention can be used especially where, using known electrophotographic techniques a proof print is formed from a colour print, using a number of colour separations obtained from an original.
  • the operation of applying the protective toner can be undertaken precisely as many times as there are colour separations, using on each occasion another colour separation, but it is also possible to form the protective toner image starting with an exposure of the photoconductive coating via all the colour separations employed during image formation and brought into registration therewith.
  • Figure 1a a illustrates schematically a substrate 1 which is image-wise covered with toner of different colour; toner of the first colour is indicated by the toner sections 2 shown as solidly filled, and toner of the second colour is indicated by toner sections 3 which are shown thatched.
  • the toner images are obtained in the conventional manner starting from respectively the light-transmitting colour separations 4 and 5; toner image 2 is obtained after exposure via colour separation 4 and subsequent development with toner 2, and toner image 3 after exposure via colour separation 5 and development with toner 3. Naturally there are also locations where toner images of the two different colours are placed one on top of the other, and locations where there is no toner present at all.
  • the image obtained in this manner is covered with a transparent, non-pigmented protective toner only where pigmented toner is present.
  • a transparent, non-pigmented protective toner only where pigmented toner is present.
  • Figure 1f indicates that it is also possible to apply the protective toner in a single operation. Then a toner image 9 is formed using all the colour separations 4, 5 employed during the formation of the respective partial images, these being registered one above the other, and via which the photoconductive covering 10 to be employed is exposed. The toner image obtained after exposure and development with protective toner as shown in Figure 1f is then registered on the image 2, 3 which is to be protected. Figure 1g shows the result finally obtained.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Photoreceptors In Electrophotography (AREA)
  • Electrophotography Using Other Than Carlson'S Method (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Fixing For Electrophotography (AREA)
  • Developing For Electrophotography (AREA)

Claims (4)

1. Verfahren zum Aufbringen eines schützenden, lichtdurchlässigen Überzugs über ein Tonerbild, welches durch Aufladen eines lichtempfindlichen Trägers, durch Entladen des Trägers in einer Bildkonfiguration durch Belichtung und durch dessen Entwicklung mit Hilfe von pigmentiertem Toner und dem nachfolgenden Übertragen des erhaltenen Tonerbildes auf einen Aufnahmeträger erhalten wird, dadurch gekennzeichnet, daß vom selben Original auf dem lichtempfindlichen Träger mit einem schützenden, lichtdurchlässigen Toner ein zweites Tonerbild erzeugt wird, wobei dieses zweite Tonerbild in Deckung mit dem ersten Bild auf den Aufnahmeträger gebracht und nachfolgend fixiert wird.
2. Verfahren nach Anspruch 1, wie es in dem Fall verwendet wird, in dem das Bild, welches auf den Träger übertragen wird, durch Verwendung einer Anzahl von Farbtrennungen erhalten wird, wodurch eine Anzahl von Tonerbildern mit unterschiedlicher Farbe und in genauer Deckung nacheinanderfolgend ausgebildet werden, dadurch gekennzeichnet, daß der Aufbringungszyklus eines schützenden, lichtdurchlässigen Überzugs so oft wiederholt wird, wie Farbtrennungen vorhanden sind, wobei jedesmal eine andere Farbtrennung verwendet wird.
3. Verfahren nach Anspruch 1, wie es in dem Fall verwendet wird, in dem das Bild, welches auf den Träger übertragen wird, durch Verwendung einer Anzahl von Farbtrennungen erhalten wird, wodurch eine Anzahl von Tonerbildern mit unterschiedlicher Farbe und in genauer Deckung nacheinanderfolgend ausgebildet werden, dadurch gekennzeichnet, daß das Schutztonerbild in einem einzigen Arbeitsschritt durch Belichtung des lichtempfindlichen Überzugs unter Verwendung aller Farbtrennungen durchgeführt wird, die in vorausgehenden Schritten in Deckung miteinander angewandt wurden.
4. Verfahren nach den Ansprüchen 1-3, dadurch gekennzeichnet, daß die Schutztonerschicht farblos ist.
EP82201586A 1981-12-16 1982-12-10 Verfahren zum Auftragen einer licht-durchlässigen Schutzschicht auf ein, auf einem Substrat-geformtes, Tonerbild Expired EP0081887B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82201586T ATE12844T1 (de) 1981-12-16 1982-12-10 Verfahren zum auftragen einer licht-durchlaessigen schutzschicht auf ein, auf einem substrat- geformtes, tonerbild.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8105674 1981-12-16
NL8105674A NL8105674A (nl) 1981-12-16 1981-12-16 Werkwijze voor het aanbrengen van een beschermende lichtdoorlatende bekleding op een op een substraat gevormd tonerbeeld.

Publications (2)

Publication Number Publication Date
EP0081887A1 EP0081887A1 (de) 1983-06-22
EP0081887B1 true EP0081887B1 (de) 1985-04-17

Family

ID=19838560

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82201586A Expired EP0081887B1 (de) 1981-12-16 1982-12-10 Verfahren zum Auftragen einer licht-durchlässigen Schutzschicht auf ein, auf einem Substrat-geformtes, Tonerbild

Country Status (6)

Country Link
EP (1) EP0081887B1 (de)
JP (1) JPS58114067A (de)
AT (1) ATE12844T1 (de)
AU (1) AU552848B2 (de)
DE (1) DE3263176D1 (de)
NL (1) NL8105674A (de)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0486235A2 (de) * 1990-11-14 1992-05-20 Konica Corporation Farbbilderzeugungsverfahren
WO1993007541A1 (en) * 1991-10-09 1993-04-15 Spectrum Sciences B.V. Reflection enhancement of images
US5506671A (en) * 1993-06-18 1996-04-09 Xeikon Nv Electrostatographic printing including the use of colourless toner
US5612777A (en) * 1996-01-11 1997-03-18 Xerox Corporation Method and apparatus for applying a clear toner resin containing lightfastness material to toner images
US5837406A (en) * 1996-05-21 1998-11-17 Agfa-Gevaert, N.V. Toner image resistant to scratching
US5887234A (en) * 1997-12-17 1999-03-23 Eastman Kodak Company Reproduction apparatus providing selectable image quality and gloss
US5905006A (en) * 1996-07-01 1999-05-18 Agfa-Gevaert, N.V. Toner image resistant to cracking
US6535712B2 (en) 2001-07-06 2003-03-18 Hewlett-Packard Company Gloss control method and apparatus with disposable toner cartridges containing clear toners
EP1410910A1 (de) 2002-10-14 2004-04-21 NexPress Solutions LLC Verfahren zur Erkennung einer Registermarke, vorzugsweise einer farblosen oder farbarmen Registermarke
US6775510B2 (en) 2001-08-08 2004-08-10 Heidelberg Digital L.L.C. Method for reducing rub-off from toner or printed images using a phase change composition
DE10320064A1 (de) * 2002-10-14 2004-09-02 Nexpress Solutions Llc Verfahren zur Erkennung einer Registermarke, vorzugsweise einer farblosen oder farbarmen Registermarke

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU588640B2 (en) * 1985-10-24 1989-09-21 Stork Colorproofing B.V. Method of image fixing in colour electrostatography
US5339146A (en) * 1993-04-01 1994-08-16 Eastman Kodak Company Method and apparatus for providing a toner image having an overcoat
US5912097A (en) * 1993-07-06 1999-06-15 Eastman Kodak Company Electrostatographic method using an overlay toner
EP0725317A1 (de) 1995-01-30 1996-08-07 Agfa-Gevaert N.V. Verfahren zur Herstellung einer "Polymersuspension" für die Tonerteilchenherstellung
US5702852A (en) * 1995-08-31 1997-12-30 Eastman Kodak Company Multi-color method of toner transfer using non-marking toner and high pigment marking toner
US5794111A (en) * 1995-12-14 1998-08-11 Eastman Kodak Company Apparatus and method of transfering toner using non-marking toner and marking toner
EP0810482B1 (de) * 1996-05-21 2001-07-18 Xeikon Nv Kratzfestes Tonerbild
GB9622747D0 (en) * 1996-11-01 1997-01-08 Stationery Office The Ltd Security marking of documents

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE576841A (de) * 1958-03-20
US3345293A (en) * 1963-09-03 1967-10-03 Xerox Corp Colored electrostatographic toners containing organic dye pigments
US3862848A (en) * 1971-12-24 1975-01-28 Australia Res Lab Transfer of color images
GB1508794A (en) * 1974-04-03 1978-04-26 Agfa Gevaert Protection of toner images

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0486235A2 (de) * 1990-11-14 1992-05-20 Konica Corporation Farbbilderzeugungsverfahren
EP0486235A3 (en) * 1990-11-14 1993-04-07 Konica Corporation Color image forming method
US5260753A (en) * 1990-11-14 1993-11-09 Konica Corporation Color image forming method
WO1993007541A1 (en) * 1991-10-09 1993-04-15 Spectrum Sciences B.V. Reflection enhancement of images
US5506671A (en) * 1993-06-18 1996-04-09 Xeikon Nv Electrostatographic printing including the use of colourless toner
US5612777A (en) * 1996-01-11 1997-03-18 Xerox Corporation Method and apparatus for applying a clear toner resin containing lightfastness material to toner images
US5837406A (en) * 1996-05-21 1998-11-17 Agfa-Gevaert, N.V. Toner image resistant to scratching
US5905006A (en) * 1996-07-01 1999-05-18 Agfa-Gevaert, N.V. Toner image resistant to cracking
US5887234A (en) * 1997-12-17 1999-03-23 Eastman Kodak Company Reproduction apparatus providing selectable image quality and gloss
US6535712B2 (en) 2001-07-06 2003-03-18 Hewlett-Packard Company Gloss control method and apparatus with disposable toner cartridges containing clear toners
US6775510B2 (en) 2001-08-08 2004-08-10 Heidelberg Digital L.L.C. Method for reducing rub-off from toner or printed images using a phase change composition
EP1410910A1 (de) 2002-10-14 2004-04-21 NexPress Solutions LLC Verfahren zur Erkennung einer Registermarke, vorzugsweise einer farblosen oder farbarmen Registermarke
DE10320064A1 (de) * 2002-10-14 2004-09-02 Nexpress Solutions Llc Verfahren zur Erkennung einer Registermarke, vorzugsweise einer farblosen oder farbarmen Registermarke

Also Published As

Publication number Publication date
ATE12844T1 (de) 1985-05-15
EP0081887A1 (de) 1983-06-22
AU9158682A (en) 1983-06-23
DE3263176D1 (en) 1985-05-23
JPH0256668B2 (de) 1990-11-30
AU552848B2 (en) 1986-06-26
NL8105674A (nl) 1983-07-18
JPS58114067A (ja) 1983-07-07

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