Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
  • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
  • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
  • B42D25/30—Identification or security features, e.g. for preventing forgery
  • B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials
  • B42D25/378—Special inks
  • B42D25/387—Special inks absorbing or reflecting ultraviolet light
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
  • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
  • B41M1/00—Inking and printing with a printer's forme
  • B41M1/14—Multicolour printing
• • 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
  • B41M3/14—Security printing
  • B41M3/144—Security printing using fluorescent, luminescent or iridescent effects
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
  • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
  • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
  • B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
  • B42D25/29—Securities; Bank notes
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
  • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
  • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
  • B42D25/30—Identification or security features, e.g. for preventing forgery
  • B42D25/324—Reliefs
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
  • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
  • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
  • B42D25/30—Identification or security features, e.g. for preventing forgery
  • B42D25/328—Diffraction gratings; Holograms
• • B42D2035/06—
• • B42D2035/26—
• • 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
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T428/00—Stock material or miscellaneous articles
  • Y10T428/31504—Composite [nonstructural laminate]
  • Y10T428/31786—Of polyester [e.g., alkyd, etc.]
  • Y10T428/3179—Next to cellulosic

Definitions

• the invention is concerned with printing produced on a substrate Halftone images consisting of at least two types of grid-like arranged Pixels of different colors, whereby by color mixing of the colors Pixels the respectively desired color is generated and on the substrate on the one hand fluorescent pixels of when excited with a certain electromagnetic colors containing fluorescent pigments printing inks and on the other hand non-fluorescent pixels of colored, upon excitation with the certain electromagnetic radiation non-fluorescent pigments containing printing inks are present.
• JP-A-10 278 407 describes a print produced on a substrate Halftone image consisting of at least two types arranged in a grid fluorescent pixels of different colors, where by color mixing the colors of the pixels the respectively desired color is generated.
• the invention is an object of the invention to propose a way, how halftone images can be produced by a printing process on a substrate, which compared to the previous halftone images by high brilliance and the Possibility to distinguish realistic color production.
• Printed halftone images according to the invention thus differ from the hitherto customary, printed colored halftone pictures in that the respective Colors are only recognizable if contained in the individual printing inks Pigments excited by electromagnetic radiation of appropriate wavelength and then fluoresce. Once the pigments are excited, you then get but a very bright, strong color halftone image.
• printing inks of course in the broadest Meaning is understood and includes all kinds of paints or varnishes that are suitable are to create a print or raster image on a substrate.
• “inks” within the meaning of the invention, for example, the paint or Sublimation layers of thermal transfer or thermal printing films.
• non-fluorescent pixels that the printing inks used to produce these pixels are absolutely not fluoresce.
• non-fluorescent pixels may be also act around pixels that consist of printing inks, their pigments though fluoresce upon excitation with certain electromagnetic radiation, not however, upon excitation with the particular electromagnetic radiation that the brings fluorescent pixels to fluoresce.
• non-fluorescent pixels intermesh on the substrate nested, face up to the same, both fluorescent as well as non-fluorescent pixels having surface area of Substrates each dependent on the lighting, different effects.
• the fluorescent pixels are a first image and the non-fluorescent pixels represent a second image.
• the first document as normal halftone image by mixing the colors cyan, magenta and yellow (as well possibly black), while the second portrait by additive Color mixing, e.g. under UV light, fluorescent pigmented inks is generated.
• the security of a personal document can be increase significantly and you get at the same time a simple method to Authenticity test, namely, that only has to be checked, whether by Subtractive color mixing generated portrait of the document owner with the Lighting with very specific electromagnetic radiation in appearance passing, resulting from positive color mixing of fluorescent colors Portrait coincides.
• the production of such images from normal, a subtractive color mixing effect pigments and fluorescent one
• additive color mixing pigments can be easily prepared by means of Thermal transfer printers happen, which then have to be able to correspondingly to provide many colors for the pressure points.
• a very special feature of the halftone images according to the invention is to see that the desired color or color can only be observed if the halftone image with electromagnetic radiation corresponding Wavelength is irradiated. This has the consequence that the color or color position of the halftone image changes when irradiation with light of different Wavelength, for example, on the one hand with visible light, on the other hand with ultraviolet light. This effect can be exploited, for example To represent a substrate different structures, depending on the wavelength or Frequency of the electromagnetic radiation used for lighting are alternately visible.
• Halftone images according to the invention are preferably produced in such a way that fluorescent pixels are provided from three different printing inks, wherein the pigments of the different printing inks each in one of three Primary colors (for example red, green and blue-violet) for additive color mixing Fluorescent, because then by appropriate combination of pixels of individual, each different fluorescent pigments almost all Colors of the visible spectrum can be generated.
• Primary colors for example red, green and blue-violet
• the pixels on black Subsurface are arranged.
• the black background can be either from be formed directly to the substrate. It would also be conceivable, however, the black one To form the background by means of a corresponding printing ink, wherein the Substrate forming ink then over the entire surface or even only in Intermediate spaces between the colored fluorescent pixels may be arranged can.
• the dimensions of the - Halftone image - - pixels are chosen so that this with the unarmed eye are not resolvable, which will be achieved in any case if, according to the invention, the dimensions of the pixels are less than 0.3 mm are selected. In this case, for the viewer, the mix of the individual pixels come colored light rays and it arises as it were the impression of a continuous, correspondingly colored surface.
• Halftone images according to the invention can be used for a variety of purposes use. Particularly advantageous and subject of the invention However, the use of a corresponding halftone image as security or Guarantee element for valuables, documents, in particular securities, Banknotes and identity cards, or for correspondingly valuable items. For example, it is conceivable to use a banknote, a check or another Securities with a corresponding halftone printing to provide, in which case only when lighting with appropriate radiation of the desired color effect occurs.
• halftone image of the on the secured Object transferred decorative layer of a transfer film in particular hot stamping or Thermal transfer film is formed.
• Halftone images can be part of it Of transfer films easily produce in conventional printing process and then in shape label-like stains, streaks, etc. in a simple manner to the Transfer securing objects. This has the advantage that the user corresponding security elements relate this more or less finished can and then only a relatively simple device for transmitting the Security element of the transfer film on the object to be secured needed.
• the halftone image when using corresponding halftone images as a security element for objects the halftone image is combined with an optically active element, for example one Lattice structure, a hologram, a high-gloss reflective surface, a purposefully frosted area or a color change or different transparency causing thin film arrangement.
• an optically active element for example one Lattice structure, a hologram, a high-gloss reflective surface, a purposefully frosted area or a color change or different transparency causing thin film arrangement.
• halftone images are according to the Invention extremely versatile.
• relatively large-format halftone prints on large-format printers in one To produce embodiment according to the invention, so large,
• UV-fluorescent prints that are suitable for special effects, e.g. in the advertising industry, can be used.
• advertising posters produced in discotheques according to the invention od.
• appropriate light e.g. UV radiation
• Possibilities are the production costs for such advertising media but comparatively low.
• the pigments are selected so that they with appropriate Irradiation in the colors red, green and blue light, so you can enter Create a halftone image that basically in terms of its properties corresponds to a TV picture tube generated image, in addition to the individual pixels of the halftone image should be so small that this from the Eye can not be resolved individually.
• This condition is under consideration of the halftone image from normal reading distance, if the pixels have a Diameter of less than 0.3 mm, preferably even less than 0.1 mm.
• the pixels of the halftone image so densely printed are that the dark, preferably black, underground anymore translucent, halftone images can be printed, the different Have properties.
• UV fluorescent Pigments are not used when irradiated with normal daylight light up a special color, one achieves that the halftone images at Illumination with normal daylight as pale black and white images appear (due to the inherent color of the fluorescent pigments). If, on the other hand, the halftone image is illuminated with appropriate UV radiation, the pigments fluoresce in the respective colors, taking the pigments expediently in the sense of additive color mixing, preferably so should light up in red, green and blue.
• pigments can be used which fluorescently UV are, on the one hand at the wavelength 365 nm and on the other hand, at the wavelength of 254 nm.
• the halftone images can be printed using appropriate inks in the customary printing method are generated, expediently offset printing (Digital offset) or thermal transfer printing can be used.
• expediently offset printing Digital offset
• thermal transfer printing can be used.
• the usage has the advantage that in this process each image associated image information (usually as red, green and blue color separation) can be used directly.
• offset inks were used 10 to 40 weight percent of the UV fluorescent produced in a conventional manner Pigments with an oxidatively drying offset varnish grated and used immediately.
• Using the pigments BF 11 (red, fluorescent at 254 nm), MF 1 (green, fluorescent at 254 nm) and MF 40 (blue, fluorescent at 254 nm) creates a halftone image of a portrait on a substrate, with the distance the individual pixels is chosen sufficiently large that in the Interspaces further pixels can be inserted. Size and Distance of the pixels must be such that the individual pixels with the unaided eye at a normal viewing distance of about 30 cm can not be resolved individually.
• MF 1 and MF 40 become colored pressure points accordingly imprinted small size, where these pressure points to Pressure points in the four primary colors for subtractive color mixing (in general cyan, yellow, magenta and black).
• Both the pressure points with the fluorescent pigments and the Pressure points of normal printing inks are each arranged so that a Halftone image results, e.g. the portrait of a person in both pictures can be shown.
• the selection of colors to create the halftone image is then made such that under normal illumination, e.g. with daily or Artificial light, the subtractive color mixing causing pressure points the first Halftone color image of the person pose while the fluorescent Pressure points when illuminated with suitable radiation, e.g. UV radiation, an im reproduce a substantially consistent picture.
• suitable radiation e.g. UV radiation

Landscapes

• Business, Economics & Management (AREA)
• Accounting & Taxation (AREA)
• Finance (AREA)
• Printing Methods (AREA)
• Credit Cards Or The Like (AREA)
• Inks, Pencil-Leads, Or Crayons (AREA)
• Cosmetics (AREA)
• Facsimile Image Signal Circuits (AREA)
• Color Image Communication Systems (AREA)
• Luminescent Compositions (AREA)

Priority Applications (1)

Applications Claiming Priority (3)

Publications (2)

Family

ID=7693061

Family Applications (1)

Country Status (14)

Cited By (1)

Families Citing this family (20)

Family Cites Families (27)

• 2001
  • 2001-07-25 DE DE10136252A patent/DE10136252A1/de not_active Withdrawn
  • 2001-07-25 DE DE20121871U patent/DE20121871U1/de not_active Expired - Lifetime
• 2002
  • 2002-07-03 RU RU2004105277/12A patent/RU2264296C2/ru not_active IP Right Cessation
  • 2002-07-03 WO PCT/DE2002/002414 patent/WO2003011606A1/de active IP Right Grant
  • 2002-07-03 EP EP02750818A patent/EP1409263B1/de not_active Expired - Lifetime
  • 2002-07-03 JP JP2003516815A patent/JP4390136B2/ja not_active Expired - Fee Related
  • 2002-07-03 DE DE50201638T patent/DE50201638D1/de not_active Expired - Lifetime
  • 2002-07-03 US US10/482,892 patent/US20040209096A1/en not_active Abandoned
  • 2002-07-03 AT AT02750818T patent/ATE283173T1/de active
  • 2002-07-03 CA CA002452209A patent/CA2452209C/en not_active Expired - Fee Related
  • 2002-07-03 PT PT02750818T patent/PT1409263E/pt unknown
  • 2002-07-03 HU HU0401205A patent/HU225882B1/hu not_active IP Right Cessation
  • 2002-07-03 CN CNB028145798A patent/CN1274516C/zh not_active Expired - Fee Related
  • 2002-07-03 ES ES02750818T patent/ES2230508T3/es not_active Expired - Lifetime
  • 2002-07-03 DK DK02750818T patent/DK1409263T3/da active
  • 2002-07-08 TW TW091115085A patent/TWI237599B/zh not_active IP Right Cessation

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