EP1438194B1 - Materiau d'enregistrement en forme de bande continue translucide, et son procede de fabrication - Google Patents

Materiau d'enregistrement en forme de bande continue translucide, et son procede de fabrication Download PDF

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Publication number
EP1438194B1
EP1438194B1 EP01274551A EP01274551A EP1438194B1 EP 1438194 B1 EP1438194 B1 EP 1438194B1 EP 01274551 A EP01274551 A EP 01274551A EP 01274551 A EP01274551 A EP 01274551A EP 1438194 B1 EP1438194 B1 EP 1438194B1
Authority
EP
European Patent Office
Prior art keywords
recording material
web
pigmented coating
material according
substrate
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 - Lifetime
Application number
EP01274551A
Other languages
German (de)
English (en)
Other versions
EP1438194A1 (fr
Inventor
Karsten SÜSSENBACH
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.)
Mitsubishi HiTech Paper Flensburg GmbH
Original Assignee
Mitsubishi HiTech Paper Flensburg GmbH
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 Mitsubishi HiTech Paper Flensburg GmbH filed Critical Mitsubishi HiTech Paper Flensburg GmbH
Publication of EP1438194A1 publication Critical patent/EP1438194A1/fr
Application granted granted Critical
Publication of EP1438194B1 publication Critical patent/EP1438194B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H23/00Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
    • D21H23/22Addition to the formed paper
    • D21H23/32Addition to the formed paper by contacting paper with an excess of material, e.g. from a reservoir or in a manner necessitating removal of applied excess material from the paper
    • D21H23/34Knife or blade type coaters
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41MPRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M3/00Printing processes to produce particular kinds of printed work, e.g. patterns
    • B41M3/14Security printing
    • 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
    • B41M5/124Duplicating 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
    • 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
    • B41M5/26Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
    • B41M5/40Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used characterised by the base backcoat, intermediate, or covering layers, e.g. for thermal transfer dye-donor or dye-receiver sheets; Heat, radiation filtering or absorbing means or layers; combined with other image registration layers or compositions; Special originals for reproduction by thermography
    • B41M5/42Intermediate, backcoat, or covering layers
    • 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
    • B41M5/50Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
    • B41M5/502Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording characterised by structural details, e.g. multilayer materials
    • B41M5/506Intermediate layers
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00Coated paper; Coating material
    • D21H19/66Coatings characterised by a special visual effect, e.g. patterned, textured
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/24Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24802Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]

Definitions

  • the invention relates to a sheet-like recording material in translucent design, a substrate and an applied on at least one side of the substrate, continuous pigmented coating, in which a pigmented marking by a locally differently thick application of the coating in the form of the marking is trained.
  • Recording materials determine daily life in society and within of professional life. For the use of recording materials whose authorized Use generally by a specific marking of the approved for this purpose Material has been proven in the past already different Solutions of authenticity-proofing security features proposed.
  • a copy paper not to be assigned to the generic term receives a visible marking on a substrate, which is subsequently covered with a translucent CF recording layer. Because of the nature of the marking in the form of continuous or patterned print jobs, as they are disclosed by way of example, this known copy paper is assigned to the technical field of spurious watermarks. An indication of the formation of a substrate disposed between the substrate and recording layer, pigmented coating with differences in thickness in the form of a marker of the font can be found at any point.
  • a synthetic print carrier with pseudo watermark comprises a plastic substrate, at least one, preferably by means of gravure applied, the opacity of the print carrier changing authentication or safety mark and at least one character covering the printable pigment coating.
  • the monochrome or polychrome character should hardly be visible in reflected light, but should be clearly visible in transmitted light.
  • the fundamental drawback that the printed pseudo watermark can be forged relatively easily, which can not be prevented even by applying it to simple pigment coatings
  • a security paper which is to be used as a label for the secure marking of garments and as a packaging material for compact discs (CDs).
  • the known security paper has on at least one side of a paper substrate on a pigmented coating layer, which is applied locally to form markings in different thicknesses.
  • the markings thus formed covering only a limited area of at most 10% of the total area have considerable differences in thickness compared to the unmarked areas of the coating layer.
  • the basis weight of the marked areas is 30 g / m 2 , while the remaining area has a coating of 16 g / m 2 .
  • the difference in basis weight of 14 g / m 2 results in a thickness difference of 14 ⁇ m.
  • the pigmented coating layer also serves as the surface to be printed.
  • thermosensitive recording material having authenticity-proofing security features in the form of watermarks
  • EP 0 844 097 A1 for a thermosensitive recording material as a first security feature in the form of a spurious watermark discloses a latent image printed on the back side of the recording material, which is produced by means of a security ink containing a fluorescent reagent.
  • the security ink contains a water-repellent agent.
  • the fluorescent ink containing the fluorescent reagent used as the pigment or dye and the water-repellent-containing security ink is contained or dispersed in an aqueous vehicle which may contain a binder other than these components.
  • a disadvantage of this proposal is that the water-repellent character of the security ink complicates the often common arrangement of preprints using the usual printing process. Preprints are z. B. applied by offset printing form fields, the labeling is done in the intended use, for example by means of thermal printer.
  • EP 0 611 664 B1 discloses a true watermark affixed in the carrier for a sheet-like recording material provided with a heat-sensitive coating. Proper recognition of the watermark is not always possible when looking through it in daylight, making it difficult to identify. In addition, the devices required for the production, such as the mark-specific Eskyure are burdened with high investment costs.
  • DE 93 02 105 U discloses a heat-sensitive recording material in translucent design, which provides a substrate with a real watermark and a heat-sensitive recording layer formed above.
  • Another disadvantage of this known recording material is the not always possible or difficult identification of the intended security feature, which causes high investment costs in terms of its introduction.
  • the solution of the above object is achieved with a web-shaped recording material in a translucent design that has a substrate and one on at least one side of the substrate applied, continuous pigmented coating in which a pigmented label is one in the form of the label locally different thick application of the coating is formed, the pigmented Coating forms an intermediate layer, in which the mark by a local thicker application of the pigmented coating with a difference in thickness over the unmarked points of the pigmented coating formed between 0.1 and 10 microns and over the intermediate layer forming pigmented coating is a heat-sensitive recording layer is arranged.
  • a particularly preferred embodiment is when the locally made thicker Marks a difference in thickness compared to the unmarked points of the intermediate layer in a range between 0.1 and 5 microns.
  • the continuous pigmented coating of the novel recording material contains at least one binder based on a synthetic polymer, wherein For example, styrene-butadiene latex gives particularly good results.
  • a synthetic binder with the admixture of at least one natural polymer represents a particularly suitable embodiment.
  • the present invention attacks the production of the pigmented coating from the prior art because of their oil absorption of at least 50 ml per 100 g known Pigments to be used alone or in mixture.
  • Pigments include: calcined or uncalcined diatomaceous earth, alumina hydroxide, magnasium carbonate, Silica, calcium carbonate and precipitated calcium carbonate, titanium dioxide as well Calcined or uncalcined kaolin.
  • the last three mentioned pigments give particularly clear marks, which is why they are preferred.
  • all components are for the heat-sensitive recording layer which reacts with one another under the influence of heat Enable print image. It is preferable if the heat-sensitive recording layer Color former and with these responsive organic color acceptors includes. Further contains such a recording layer further conventional additives for heat-sensitive Recording layers such as resins, waxes and stabilizers. A preferred embodiment provides such a heat-sensitive recording material with a coating applied to the heat-sensitive recording layer Protective layer.
  • the substrate is in a transparent form, there are virtually no restrictions on the substrate to be used, for example, offering different films.
  • a particularly preferred embodiment is when the substrate of the novel recording materials consists of paper. Without being limited thereto, a preferred range of the basis weight of the substrate is between 50 and 180 g / m 2 .
  • the substrate pigmented coating applied with a coater having a counter roll, wherein the counter roll depressions in the form of the markings to be formed having.
  • the substrate is under the pressure of the doctor blade in the engraved recess of the backing roll pressed in, resulting in a thicker order the pigmented coating.
  • coater find Bladetyp their application.
  • the heat-sensitive recording layer for example by means of a separate Coater, applied.
  • Recording materials are compatible with other security features already known, such as fluorescent security fibers incorporated into the substrate or in or on the substrate applied or applied dyes as authentizticiansnach devisde as well as possibly counterfeiting proofing indicator substances, to form colorants with reagents to be applied to the recording materials react, combined in a suitable manner.
  • a paper web of bleached and ground deciduous and softwood pulps is prepared on a fourdrinier paper machine with the addition of customary admixture substances in conventional amounts having a basis weight of 160 g / m 2 as the substrate.
  • a calcined kaolin pigment, styrene-butadiene latex binder, and starch cobinder, in addition to other auxiliary coating of 8 g / m 2 is applied by means of a bladet-type duo coater whose counter roller has recesses in the form of hexagons
  • the substrate is provided with a starch preparation of 0.3 g / m 2 .
  • a heat-sensitive recording layer of 5.4 g / m 2 is applied to the previously applied pigmented coating in a separate coating machine.
  • the heat-sensitive recording material thus prepared is provided with a protective layer of 3.5 g / m 2 on its side containing the recording layer.
  • the heat-sensitive recording papers thus prepared have a transmitted light excellent marking according to the wells in the Counter roller on.

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Paper (AREA)
  • Heat Sensitive Colour Forming Recording (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
  • Manufacturing Optical Record Carriers (AREA)

Claims (10)

  1. Matériau d'enregistrement en forme de bande continue du type translucide, qui comporte un substrat et un revêtement pigmenté transparent, qui est déposé sur au moins une face du substrat et dans lequel est réalisé un marquage pigmenté par un dépôt du revêtement selon une épaisseur localement différente suivant la forme du marquage, caractérisé en ce que le revêtement pigmenté forme une couche intermédiaire, dans laquelle le marquage est réalisé par un dépôt du revêtement pigmenté localement plus épais avec une différence d'épaisseur entre 0,1 et 10 µm par rapport aux zones non marquées du revêtement pigmenté, et une couche d'enregistrement thermosensible est agencée au-dessus du revêtement pigmenté formant la couche intermédiaire.
  2. Matériau d'enregistrement en forme de bande selon la revendication 1, caractérisé en ce que le marquage localement plus épais présente une différence d'épaisseur, par rapport aux zones non marquées du revêtement pigmenté, qui est comprise entre 0,1 et 5 µm.
  3. Matériau d'enregistrement en forme de bande selon la revendication 1 ou 2, caractérisé en ce que le revêtement pigmenté contient au moins un liant à base d'un polymère synthétique.
  4. Matériau d'enregistrement en forme de bande selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le revêtement pigmenté contient au moins un pigment dont l'absorption d'huile, définie selon la norme DIN 53199 / JIS K 5101, est au moins égale à 50 ml/100 g.
  5. Matériau d'enregistrement en forme de bande selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le revêtement pigmenté contient au moins un pigment choisi parmi les groupes cités ci-dessous :
    kaolin
    kaolin calciné
    dioxyde de titane.
  6. Matériau d'enregistrement en forme de bande selon l'une quelconque des revendications 1 à 5, caractérisé en ce que le rapport liant/pigment dans le revêtement pigmenté se situe entre 1:10 et 1:20.
  7. Matériau d'enregistrement en forme de bande selon l'une quelconque des revendications 1 à 6, caractérisé en ce que la couche d'enregistrement thermosensible contient des substances initiatrices de coloration et des accepteurs de coloration organiques réagissant les uns avec les autres sous l'influence de la chaleur.
  8. Matériau d'enregistrement en forme de bande selon l'une quelconque des revendications 1 à 7, caractérisé en ce qu'une couche de protection est déposée sur la couche d'enregistrement thermosensible.
  9. Matériau d'enregistrement en forme de bande selon l'une quelconque des revendications 1 à 8, caractérisé en ce que le matériau d'enregistrement comporte un substrat en papier.
  10. Matériau d'enregistrement en forme de bande selon l'une quelconque des revendications 1 à 9, caractérisé en ce que le substrat du matériau d'enregistrement présente un grammage entre 50 et 180 g/m2.
EP01274551A 2001-10-16 2001-10-16 Materiau d'enregistrement en forme de bande continue translucide, et son procede de fabrication Expired - Lifetime EP1438194B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2001/011934 WO2003033272A1 (fr) 2001-10-16 2001-10-16 Materiau d'enregistrement en forme de bande continue translucide, et son procede de fabrication

Publications (2)

Publication Number Publication Date
EP1438194A1 EP1438194A1 (fr) 2004-07-21
EP1438194B1 true EP1438194B1 (fr) 2005-09-07

Family

ID=8164633

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01274551A Expired - Lifetime EP1438194B1 (fr) 2001-10-16 2001-10-16 Materiau d'enregistrement en forme de bande continue translucide, et son procede de fabrication

Country Status (7)

Country Link
US (1) US6995117B2 (fr)
EP (1) EP1438194B1 (fr)
JP (1) JP4026715B2 (fr)
AT (1) ATE303904T1 (fr)
DE (1) DE50107391D1 (fr)
ES (1) ES2248234T3 (fr)
WO (1) WO2003033272A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011194884A (ja) * 2010-02-26 2011-10-06 Fujifilm Corp インクジェット記録媒体及びその製造方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL65065C (fr) 1947-03-08 1949-03-15
ATE68139T1 (de) 1985-05-28 1991-10-15 Belmarque Systems Sa Verfahren und vorrichtung zur papiermarkierung und fuer diese methode verwendbares papier.
DE3920378C1 (en) 1989-06-22 1991-01-24 Heinr. Aug. Schoeller Soehne Gmbh & Co Kg, 5160 Dueren, De Artificial watermark paper prodn. - by printing paper with engraved plate with watermark in high pressure process with crosslinked polyether and isocyanate
FR2654386B1 (fr) 1989-11-14 1992-01-17 Arjomari Prioux Support plastique filigrane.
GB9300555D0 (en) 1993-01-13 1993-03-03 Carrs Paper Ltd Carbonless copy paper
DE4304413A1 (de) 1993-02-13 1994-08-18 Kanzan Spezialpapiere Gmbh Bahnförmiges Trägermaterial für eine thermosensitive Aufzeichnungsschicht
DE9302105U1 (fr) 1993-02-13 1993-04-08 Kanzan Spezialpapiere Gmbh, 5160 Dueren, De
SE505397C2 (sv) 1995-11-09 1997-08-18 Mo Och Domsjoe Ab Ytbehandlat säkerhethetspapper och förfarande samt anordning för framställning av ytbehandlat säkerhetspapper
EP0844097B1 (fr) 1996-11-21 2001-07-18 Ncr International Inc. Papier thermique avec des caractéristiques de sécurité et encre de sécurité à cet effet

Also Published As

Publication number Publication date
US20040247838A1 (en) 2004-12-09
ATE303904T1 (de) 2005-09-15
JP4026715B2 (ja) 2007-12-26
ES2248234T3 (es) 2006-03-16
US6995117B2 (en) 2006-02-07
EP1438194A1 (fr) 2004-07-21
DE50107391D1 (de) 2005-10-13
WO2003033272A1 (fr) 2003-04-24
JP2005505702A (ja) 2005-02-24

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