EP0027698A2 - Verfahren zur Herstellung von Papier oder beschichtetem Papier - Google Patents

Verfahren zur Herstellung von Papier oder beschichtetem Papier Download PDF

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Publication number
EP0027698A2
EP0027698A2 EP80303515A EP80303515A EP0027698A2 EP 0027698 A2 EP0027698 A2 EP 0027698A2 EP 80303515 A EP80303515 A EP 80303515A EP 80303515 A EP80303515 A EP 80303515A EP 0027698 A2 EP0027698 A2 EP 0027698A2
Authority
EP
European Patent Office
Prior art keywords
paper
sheet material
image
coated
ink
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.)
Granted
Application number
EP80303515A
Other languages
English (en)
French (fr)
Other versions
EP0027698A3 (en
EP0027698B2 (de
EP0027698B1 (de
Inventor
Martin Allan Riley
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.)
Wiggins Teape Group Ltd
Original Assignee
Wiggins Teape Group Ltd
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=10508682&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0027698(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Wiggins Teape Group Ltd filed Critical Wiggins Teape Group Ltd
Priority to AT80303515T priority Critical patent/ATE9561T1/de
Publication of EP0027698A2 publication Critical patent/EP0027698A2/de
Publication of EP0027698A3 publication Critical patent/EP0027698A3/en
Application granted granted Critical
Publication of EP0027698B1 publication Critical patent/EP0027698B1/de
Publication of EP0027698B2 publication Critical patent/EP0027698B2/de
Expired legal-status Critical Current

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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
    • B41M5/124—Duplicating or marking methods; Sheet materials for use therein using pressure to make a masked colour visible, e.g. to make a coloured support visible, to create an opaque or transparent pattern, or to form colour by uniting colour-forming components
    • 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
    • B41M3/10—Watermarks
    • 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
    • B41M5/10—Duplicating or marking methods; Sheet materials for use therein by using carbon paper or the like

Definitions

  • This invention relates to sheet material carrying an unobtrusive image, and to a method for its production.
  • the unobtrusive image may for example be provided to afford an indication of origin.
  • the invention is particularly, but not exclusively, concerned with paper sheet material.
  • Watermarking by means of a dandy roll and rubber-marking by means of a raised image on a press roll are well-known means of imparting a feint or unobtrusive image to paper so as to indicate its origin.
  • watermarking and rubber-marking add substantially to the cost of the paper, and hence they have been employed chiefly with high quality papers which command a premium price, such as paper for use in prestige stationery.
  • Watermarking and rubber-marking are normally uneconomic for papers which are produced at high speed, and/or on wide deckle paper machines.
  • a further problem is that in the region of the watermark or rubber-mark some properties of the paper are affected, for example density, absorbency, porosity and smoothness. This may be disadvantageous in some circumstances, for example if the paper is subsequently to be coated and a uniform surface for receiving the coating is desirable. In any event watermarking and rubber-marking are of limited value where coated papers are concerned since the watermark or rubber-mark may be obscured by the coating.
  • sheet material carrying an unobtrusive image applied by charged droplet printing, preferably ink-jet printing.
  • a method of producing sheet material carrying an unobtrusive image comprising the step of applying the image to the sheet material by means of a charged droplet printer, preferably an ink-jet printer.
  • the sheet material may for example be paper or coated paper.
  • the printer is mounted on the paper-making or paper-coating machine on which the paper or coated paper is produced, whereby the web speed through the printer is the same as the web speed through the machine. Normally, an array of printers will be provided across the width of the web.
  • the marking material used to produce the feint or unobtrusive image may be an ink or any other material which affords a contrast with the sheet material, for example a resin or other substance which has the effect of transparentizing a paper sheet material to which it is applied.
  • the invention is particularly suitable for use with pressure sensitive copying material, since the copying material is not subjected to pressure during the printing operations (any alteration of local properties of the base material caused by water or rubber-marking could be particularly detrimental to the functional performance of a pressure-sensitive copying material).
  • the copying material is preferably of the kind in which image-formation occurs as a result of reaction between two individually colourless reactants which are brought into contact with one another under the influence of imaging pressure to form a coloured product.
  • the colour former one of the reactants
  • the colour developer the reactant
  • Pressure sensitive copying systems employing microcapsules in the manner just described may be of the self-contained or transfer type.
  • transfer type an upper sheet is coated on its lower surface with a coating of microcapsules containing colour former solution and a lower sheet is coated on its upper surface with colour developer.
  • Intermediate sheets coated with colour developer on their upper surfaces and microcapsules containing colour former solution on their lower surfaces are provided if more than one copy is required.
  • one surface of the sheet carries a coating composition containing both microcapsules and colour developer.
  • the microcapsules and the colour developer may both be present within the thickness of the sheet.
  • the colour former solution may be present as globules in a pressure-rupturable coated matrix, for example of gelatine, or wax.
  • the present method may be used to apply a feint or unobtrusive image to either surface of the upper, lower or intermediate sheets of a transfer system as just described or to either surface of a self-contained sheet as just described.
  • the reactants used in pressure sensitive copying material for feint or unobtrusive imaging by the present method may be conventional, for example the colour formers may be fluorans, phthalides or spirobipyrans and the colour developers may be, for example, acidic clays, phenolic resins or salts of certain aromatic acids.
  • one reactant may be an aromatic solvent solution of N,N'-di-benzyl-di-thio-oxamide and the other reactant may be a nickel rosinate derivative. Since the nature of pressure sensitive copying material is now very well known and is described very extensively in the patent literature, further details will not be given herein.
  • Examples of other products to which the present invention is applicable are heat-sensitive recording material and numerous printing and writing papers; photographic print base; automotive air and oil filter base papers; and compressible gasket and jointing material.
  • the rig incorporated an ink gun 1 having a single nozzle 2 adapted to emit a stream of ink droplets 5 in conventional manner.
  • the nozzle 2 was positioned generally above a paper support platform 3 which was movable in two directions x, y at right angles to one another, and to the direction Z of ink droplet emission. Movement of the paper support platform 3 was controlled by punched tape such that ink droplets impinging on the paper could be made to form a desired image.
  • the nozzle had a diameter of about 75 microns and was arranged to be pulsed so as to effect ink droplet formation.
  • Deflector plates 4 were positioned near the nozzle so as to deflect certain of the ink droplets 5 on to the paper (only one deflected drop 7 is shown).
  • a gutter 6 was positioned beneath the nozzle for collecting undeflected ink droplets.
  • a sheet of clay-coated colour developing paper ("Idem"* CF57 supplied by Wiggins Teape) was positioned (clay-coated side uppermost) on the paper support platform and the rig was operated to produce an unobtrusive image on the sheet.
  • the ink used was a conventional ink jet printing ink except that it was of very much lighter intensity than is used for standard printing operations.
  • the pulse frequency was 64 KHz, which gave ink droplets of approximately 140 microns diameter, and the deflecting voltage was adjusted until the desired angle of deflection was achieved.
  • the deflection voltage was maintained constant so that each deflected droplet was deflected to the same extent.
  • the arrangement was such that only about one droplet per thousand emitted droplets were actually deflected.
  • the distance of travel before each deflected droplet impinged on the paper was about 70mm. It was found that the resultant dot diameter on the imaged paper was about 400 microns.
  • the procedure was then repeated first with two microcapsule coated sheets ("Idem" * CB56 supplied by Wiggins Teape), in one case with the uncoated surface uppermost and in the other with the coated surface uppermost and then with two sheets each coated on one surface with colour developing clay and on the other surface with microcapsules ("Idem"* CFB53 supplied by Wiggins Teape).
  • the clay-coated surface was uppermost and in the other case the microcapsule coated surface was uppermost.
  • the desired unobtrusively image was obtained on each occasion.
  • Example 1 This illustrates the use of an ink-jet printer on a paper-coating machine.
  • the ink-jet printer described in Example 1 was mounted adjacent to the web path downstream of the drying station of the coater and close to a steam jet decurling station.
  • the support platform 3 was of course omitted.
  • a variable deflection voltage was used, so as to deflect the ink droplets to varying extents in order to form the desired image.
  • the voltage variations were controlled by means of a punched tape.
  • a range of coated and uncoated papers were run through the machine at speeds of up to 750 m.min 1, and an unobtrusive image was successfully obtained in each case.

Landscapes

  • Color Printing (AREA)
  • Paper (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Particle Formation And Scattering Control In Inkjet Printers (AREA)
  • Ink Jet Recording Methods And Recording Media Thereof (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Silicon Compounds (AREA)
  • Duplication Or Marking (AREA)
  • Rear-View Mirror Devices That Are Mounted On The Exterior Of The Vehicle (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)
  • Golf Clubs (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Ink Jet (AREA)
  • Printing Methods (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Liquid Developers In Electrophotography (AREA)
EP80303515A 1979-10-22 1980-10-06 Verfahren zur Herstellung von Papier oder beschichtetem Papier Expired EP0027698B2 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80303515T ATE9561T1 (de) 1979-10-22 1980-10-06 Blattfoermiges material, das mit einem unauffaelligen bild versehen ist, und verfahren zu seiner herstellung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB7936520 1979-10-22
GB7936520 1979-10-22

Publications (4)

Publication Number Publication Date
EP0027698A2 true EP0027698A2 (de) 1981-04-29
EP0027698A3 EP0027698A3 (en) 1981-12-30
EP0027698B1 EP0027698B1 (de) 1984-09-26
EP0027698B2 EP0027698B2 (de) 1989-04-05

Family

ID=10508682

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80303515A Expired EP0027698B2 (de) 1979-10-22 1980-10-06 Verfahren zur Herstellung von Papier oder beschichtetem Papier

Country Status (15)

Country Link
EP (1) EP0027698B2 (de)
JP (1) JPS5668196A (de)
AT (1) ATE9561T1 (de)
AU (1) AU530402B2 (de)
BR (1) BR8006687A (de)
CA (1) CA1157075A (de)
DE (1) DE3069302D1 (de)
DK (1) DK445080A (de)
ES (1) ES8205382A1 (de)
FI (1) FI65113C (de)
GR (1) GR70318B (de)
NO (1) NO803132L (de)
NZ (1) NZ195199A (de)
PT (1) PT71910B (de)
ZA (1) ZA806216B (de)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2561420A1 (fr) * 1984-03-13 1985-09-20 Balauze Marcombe Filigrane d'identite
GB2188287A (en) * 1986-03-27 1987-09-30 Wiggins Teape Group Ltd Imaged microcapsule-coated paper
US4874919A (en) * 1987-01-14 1989-10-17 The Wiggins Teape Group Limited Laser apparatus for repetitively marking a moving sheet
GB2218124A (en) * 1988-03-30 1989-11-08 Carrs Paper Ltd Printing on sheets having sensitive layers
US4961080A (en) * 1988-02-16 1990-10-02 The Wiggins Teape Group Limited Laser marker with mask scanning
EP0376346A3 (de) * 1988-12-30 1991-03-27 Canon Kabushiki Kaisha Tintenstrahlaufzeichnungsvorrichtung
GB2244497A (en) * 1988-03-30 1991-12-04 Carrs Paper Ltd Printing on sheets having sensitive layers
EP0611664A1 (de) * 1993-02-13 1994-08-24 KANZAN SPEZIALPAPIERE GmbH Bahnförmiges Trägermaterial für eine thermosensitive Aufzeichnungsschicht
US5352495A (en) * 1989-02-16 1994-10-04 The Wiggins Teape Group Limited Treatment of a surface by laser energy
FR2768443A1 (fr) * 1997-09-15 1999-03-19 Arjo Wiggins Papiers Couches Papier couche comportant une marque ressemblant a un filigrane et procede de fabrication
US6406118B1 (en) 1988-12-30 2002-06-18 Canon Kabushiki Kaisha Ink jet recording apparatus having a heat fixing mechanism
EP1208010A4 (de) * 1999-09-01 2002-10-29 Int Paper Co Verfahren und apparat zum aufbringen chemischen wasserzeichen auf einem substrat
WO2003082596A1 (de) * 2002-03-29 2003-10-09 Dall Ara Paolo Verfahren zur herstellung eines auf echtheit überprüfbaren aufzeichnungsträgers und damit ehraltener aufzeichnungsträger

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB696673A (en) * 1949-09-29 1953-09-09 John Knaggs Manufacture of paper
FR2086537A5 (en) * 1970-04-01 1971-12-31 Omop Carbon transfer webs mfre
GB1354890A (en) * 1970-08-26 1974-05-30 Ici Ltd Pattern printing apparatus
DE2043753A1 (en) * 1970-09-03 1972-03-09 Schmidt, Gunter Adolf, 8000 München Paper with "water mark" - by printing with fluid silicone/hardener mixt
US3786517A (en) * 1972-09-05 1974-01-15 Ibm Ink jet printer with ink system filter means
DE2527462A1 (de) * 1975-06-20 1976-12-30 Pelikan Werke Wagner Guenther Gegen faelschung gesicherte vordrucke
DE2905441C3 (de) * 1979-02-13 1981-05-14 GAO Gesellschaft für Automation und Organisation mbH, 8000 München Verfahren zur Herstellung von Wertpapier mit gedruckten Echtheitskennzeichen in einer Papierschicht

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2561420A1 (fr) * 1984-03-13 1985-09-20 Balauze Marcombe Filigrane d'identite
GB2188287A (en) * 1986-03-27 1987-09-30 Wiggins Teape Group Ltd Imaged microcapsule-coated paper
US4824691A (en) * 1986-03-27 1989-04-25 The Wiggins Teape Group Limited Imaged microcapsule-coated paper
GB2188287B (en) * 1986-03-27 1989-11-29 Wiggins Teape Group Ltd Imaged microcapsule-coated paper
US4874919A (en) * 1987-01-14 1989-10-17 The Wiggins Teape Group Limited Laser apparatus for repetitively marking a moving sheet
US4961080A (en) * 1988-02-16 1990-10-02 The Wiggins Teape Group Limited Laser marker with mask scanning
GB2218124B (en) * 1988-03-30 1992-04-15 Carrs Paper Ltd Printing on sheets having sensitive layers
GB2218124A (en) * 1988-03-30 1989-11-08 Carrs Paper Ltd Printing on sheets having sensitive layers
GB2244497A (en) * 1988-03-30 1991-12-04 Carrs Paper Ltd Printing on sheets having sensitive layers
GB2244497B (en) * 1988-03-30 1992-04-15 Carrs Paper Ltd Stack of sheet material having sensitive layers
US5864352A (en) * 1988-12-30 1999-01-26 Canon Kabushiki Kaisha Ink jet recording apparatus having a heat fixing mechanism
EP0376346A3 (de) * 1988-12-30 1991-03-27 Canon Kabushiki Kaisha Tintenstrahlaufzeichnungsvorrichtung
US6406118B1 (en) 1988-12-30 2002-06-18 Canon Kabushiki Kaisha Ink jet recording apparatus having a heat fixing mechanism
US5352495A (en) * 1989-02-16 1994-10-04 The Wiggins Teape Group Limited Treatment of a surface by laser energy
EP0611664A1 (de) * 1993-02-13 1994-08-24 KANZAN SPEZIALPAPIERE GmbH Bahnförmiges Trägermaterial für eine thermosensitive Aufzeichnungsschicht
FR2768443A1 (fr) * 1997-09-15 1999-03-19 Arjo Wiggins Papiers Couches Papier couche comportant une marque ressemblant a un filigrane et procede de fabrication
WO1999014433A1 (fr) * 1997-09-15 1999-03-25 Arjo Wiggins Papiers Couches S.A. Papier couche comportant un pseudo-filigrane et procede de fabrication
US6630055B1 (en) 1997-09-15 2003-10-07 Arjo Wiggins Papiers Couches Coated paper including a pseudo-watermark, and a method of manufacture
EP1208010A4 (de) * 1999-09-01 2002-10-29 Int Paper Co Verfahren und apparat zum aufbringen chemischen wasserzeichen auf einem substrat
WO2003082596A1 (de) * 2002-03-29 2003-10-09 Dall Ara Paolo Verfahren zur herstellung eines auf echtheit überprüfbaren aufzeichnungsträgers und damit ehraltener aufzeichnungsträger

Also Published As

Publication number Publication date
FI65113B (fi) 1983-11-30
CA1157075A (en) 1983-11-15
FI803281L (fi) 1981-04-23
NZ195199A (en) 1982-12-07
AU6354680A (en) 1981-04-30
JPS5668196A (en) 1981-06-08
EP0027698A3 (en) 1981-12-30
DK445080A (da) 1981-04-23
EP0027698B2 (de) 1989-04-05
PT71910B (en) 1981-10-13
FI65113C (fi) 1984-03-12
DE3069302D1 (en) 1984-10-31
PT71910A (en) 1980-11-01
ES496107A0 (es) 1982-06-01
ATE9561T1 (de) 1984-10-15
ZA806216B (en) 1981-09-30
NO803132L (no) 1981-04-23
GR70318B (de) 1982-09-10
AU530402B2 (en) 1983-07-14
BR8006687A (pt) 1981-04-22
ES8205382A1 (es) 1982-06-01
EP0027698B1 (de) 1984-09-26

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