摘要:
Security document, such as a banknote, a value paper, an identification document, an access card, a security label or packaging, comprising an imprint-able substrate, chosen from the group of papers, cardboards, textiles and polymer sheets, as a first constituting part, and at least a second constituting part, chosen from the group of printing inks, security threads, windows, fibers, planchettes, foils, and decals, wherein a same security element is contained at least a first time in or on one of its constituting parts, and at least a second time in or on another of its constituting parts. Method for producing a security document, characterized in that a same security element is applied at least a first time in a first step to one constituting part of said document, and at least a second time in a second step to another constituting part of said document.
摘要:
The invention relates to an ink set comprising a plurality of inks of a first and of a second group, having different colors. Inks of said first group comprise a visible colorant and an additional IR-absorbing compound (IR-taggant) which has an absorption peak at a predetermined wavelength in the near infrared. Inks of said second group comprise a visible colorant which has at the same time an infrared absorption peak at the same wavelength as that of the IR-taggant used in the inks of the first group. Preferred embodiment is a four-color process ink set comprising an IR feature.
摘要:
Device and process for producing indicia comprising magnetically oriented magnetic or magnetizable particles in ink or coating composition on a sheet of substrate material. Device includes a flat-bed screen-printing unit having a flat printing screen and a printing platen for receiving a sheet. Printing platen has an upper surface facing the printing screen and a first direction along its upper surface along which said sheet is unloadable, and a magnetic orienting unit having multiple magnet assemblies. Magnetic orienting unit is disposed below upper surface of the printing platen, the multiple magnet assemblies are disposed along first direction, and all of the magnet assemblies are concomitantly movable from a first position away from the upper surface of the printing platen to a second position close to the upper surface of the printing platen. The magnetic orienting unit having one or more magnet assemblies is usable as a stand-alone flat-bed magnetization device.
摘要:
The invention discloses a device and a process for producing indicia comprising magnetically oriented magnetic or magnetizable particles in an ink or coating composition on a sheet of substrate material. The device comprises a flat-bed screen-printing unit having a flat printing screen and a printing platen for receiving said sheet, the printing platen having an upper surface facing the printing screen and a first direction along its upper surface along which said sheet is unloadable, and a magnetic orienting unit comprising multiple magnet assemblies. The magnetic orienting unit is disposed below the upper surface of the printing platen, said multiple magnet assemblies are disposed along said first direction, and all of said magnet assemblies are concomitantly movable from a first position away from the upper surface of the printing platen to a second position close to the upper surface of the printing platen.The magnetic orienting unit comprising one or more magnet assemblies can also be used as a stand-alone flat-bed magnetization device, subsequent to the printing process, e.g. as an additional process station following a conventional flat-bed or rotary screen printing unit. Processes of producing printed documents using the disclosed devices are shown as well.
摘要:
A printing ink for the printing of security documents by the method of engraved steel die printing, wherein the volatile solvents comprise at most 15%, referred to the total weight of the ink, of one or more volatile organic substances, and wherein the volatile matter may further contain water.These inks reply to the new environmental requirements and have still a better wipability on the printing cylinders or plates. They allow document printing without interleaving.
摘要:
The present invention concerns a transfer foil, comprising a release-coated carrier (1), and on said carrier a transfer coating layer (3) having the form of a design comprising oriented optically variable magnetic pigment (OVMP), the pigment orientation representing an image, indicia, or a pattern. Processes of making and using the foil, as well as documents carrying the foil are also disclosed.
摘要:
A printing ink for the printing of security documents by the method of engraved steel die printing, wherein the volatile solvents comprise at most 15%, referred to the total weight of the ink, of one or more volatile organic substances, and wherein the volatile matter may further contain water.These inks reply to the new environmental requirements and have still a better wipability on the printing cylinders or plates. They allow document printing without interleaving.
摘要:
Disclosed is a paired optically variable security element which comprises first and second optically variable thin-film multilayer interference devices in the form of optically variable foils or of printings made with inks comprising optically variable interference pigments, wherein said first and second interference devices exhibit spectral matching at a determined angle of incidence. Sets of optically variable devices and of coating compositions comprising optically variable pigments for the production of said paired optically variable security element are also disclosed, as well as the use of said security element for the protection of documents and goods, and security documents and goods carrying same.
摘要:
Paired optically variable security element which includes first and second optically variable thin-film multilayer interference devices in the form of optically variable foils or of printings made with inks having optically variable interference pigments. The first and second interference devices exhibit spectral matching at a determined angle of incidence. Sets of optically variable devices and of coating compositions include optically variable pigments for the production of the paired optically variable security element. Moreover, the security element can be used for the protection of documents and goods, and security documents and goods.
摘要:
A printing ink for the printing of security documents by the method of engraved steel die printing, having a viscosity of at least 1 Pa.multidot.s at 40.degree. C. under a shear of about 1000 sec.sup.-1, containing a binder matrix, a polymerization initiator for polymerizable matrix components, fillers and pigments, and the usual additives. The binder matrix contains at least one cationically polymerizable compound, modified to bring about the desired rheology of the ink, and the photoinitiator, activable by UV, heat and EB, is an onium salt capable of releasing a Lewis or Bronsted acid.This ink has best and very rapid drying characteristics.