Sicpa Holding Sa

Patrick Veya

Hervé Pittet

Pierre Degott

Patrick Magnin

Marlyse Demartin Maeder

Jean Garnier

Nikolay Grigorenko

Andre Oswald

Claude-Alain Despland

Mathieu Schmid

Albert Stichelberger

Thibaut Martini

Olivier Amrein

Riccardo Ruggerone

Olivier Rozumek

Edgar Mueller

Michelle Richert

Anton Bleikolm

Edgar Müller

Gebhard Ritter

Christophe Schaller

Olivier Lefebvre

Anne Grosset

Alain Mayer

Raynald Demange

Angèle Monney

Olivier Lefèbvre

Nicolas Trachsel

Aline Vuarnoz

Alexia Christinat

Pierre-Yves Hofstetter

Aline Menoud

Nicolas (deceased) Trachsel

The present invention relates to the technical field of varnishes for protecting security documents, such as banknotes, against premature detrimental influence of soil and/or moisture upon use and time. In particular, the present invention provides a hybrid UV-LED radiation curable protective varnish comprising: wherein the weight percents are based on the total weight of the hybrid UV-LED radiation curable protective varnish.

Hybrid UV-LED radiation curable protective varnishes for security documents

The invention relates to the field of the protection of security documents such as for example banknotes and identity documents against counterfeit and illegal reproduction. In particular, the present invention provides methods for producing optical effect layers exhibiting one or more indicia on a substrate, said method comprising a step of exposing a coating layer comprising non-spherical magnetic or magnetizable pigment particles to a magnetic field of a magnetic-field generating device so as to orient at least a part of the magnetic or magnetizable pigment particles; a step of applying a top coating composition on top of the coating layer and in the form of one or more indicia, and a step of at least partially curing the coating layer and the one or more indicia with a curing unit.

Methods for producing optical effect layers comprising magnetic or magnetizable pigment particles and exhibiting one or more indicia

The present invention provides a UV-Vis radiation curable security ink for producing a security feature for securing value documents, wherein said security feature exhibits a blue color upon viewing in transmitted light and a metallic yellow color upon viewing in incident light. The UV-Vis radiation curable security ink comprises a cationically curable or a hybrid curable ink vehicle, and silver nanoplatelets bearing a surface stabilizing agent of general formula (I)

UV-VIS radiation curable security inks for producing dichroic security features

The present invention relates to the field of security inks suitable for printing security features on substrates, in particular on security documents or articles as well as security features made from said security inks, and security documents comprising a security feature made from said security inks. In particular, the invention provides UV-Vis radiation radically curable security inks comprising an ink vehicle and pigments comprising a flake-shaped non-metallic or metallic substrate comprising one or more at least partial coating layers, an at least partial surface treatment layer made of one or more surface modifiers selected from fluoro compounds.

UV-Vis radiation radically curable security inks

The present invention provides a UV-Vis radiation curable security ink for producing a security feature for securing value documents, wherein said security feature exhibits a blue color upon viewing in transmitted light and a metallic yellow color upon viewing in incident light. The UV-Vis radiation curable security ink comprises a cationically curable or a hybrid curable ink vehicle, and silver nanoplatelets bearing a surface stabilizing agent of general formula (I) wherein the residue Ris a C-Calkyl group substituted with a hydroxy group; the residue Ris selected from a C-Calkyl group, and a C-Calkyl group substituted with a hydroxy group; and Catis a cation selected from the group consisting of Na, K, Csand Rb.

UV-Vis radiation curable security inks for producing dichroic security features

The present invention provides a process for manufacturing a security feature for securing a value document, wherein said security feature exhibits a blue color upon viewing in transmitted light and a metallic yellow color upon viewing in Incident light. The manufacturing process comprises the following steps: a) printing a specific UV-Vis radiation curable ink on a transparent or partially transparent region of a substrate of a value document; b) heating the ink layer obtained at step a) at a temperature of about 55° C. to about 100° C. for at least one second so that the ink layer exhibits a metallic yellow color upon viewing in incident light; and c) UV-Vis curing the ink layer obtained at step b) to form the security feature. The manufacturing process according to the present invention enables the expedient production of security features exhibiting a blue color upon viewing in transmitted light and a metallic yellow color upon viewing in incident light and is particularly useful for industrial printing of value documents.

Process for producing dichroic security features for securing value documents

The present invention relates to the technical field of security documents comprising a security feature, such as a windowed security thread, a security foil, a security patch, a hologram or an ink printed security feature, and a protective coating, and methods of manufacturing of said security documents. The security feature has a security feature thickness tof at least about 5 &#x3bc;m (micrometers) and a security feature surface facing away from the substrate consisting of a first region adjacent to the edges of the security feature and a second region non-adjacent to the edges of the security feature. The protective coating covers the security feature surface facing away from the substrate, a first substrate surface adjacent to the edges of the security feature, and a second substrate surface, which is different from the substrate surface covered by the security feature and the first substrate surface. The protective coating covering the security feature surface facing away from the substrate and the first substrate surface is transparent, the protective coating covering the first region has a thickness t, the protective coating covering the second region has a thickness t, the protective coating covering the first substrate surface has a thickness t, and the protective coating covering the second substrate surface has a thickness t. The thickness tis larger than the thickness t, which is larger than the thickness t; the thickness tis larger than the thickness t; and either the thickness tis larger than the thickness t, which is larger than or equal to the thickness t; or the thickness tis equal to the thickness t, which is larger than the thickness t. The variable protective coating thickness on the surface of the security document provides the inventive security document with an increased resistance against physical and chemical attacks from the environment, while maintaining the mechanical resistance properties required for such security documents.

Security document and manufacturing method thereof

The disclosure relates to the field of the protection of security documents, especially banknotes, against illegal actions such as robbery or theft. In particular, the present disclosure relates to the field of ink-stained documents that are resistant to chemicals. The disclosed security documents are covered on at least one side by from about 70% to about 90% of a protective varnish and have from about 10% to about 30% of one or more varnish-free areas with one or more varnish-free indentations, the percentages being based on the total surface of the one side of the security document.

Permanent staining of varnished security documents

An ink for the engraved copperplate intaglio printing inks is disclosed, which comprises high-molecular-weight dendritic polymer as a binder component. Inks comprising such polymer can be formulated so as to contain a significantly reduced amount of organic solvent (volatile organic components, VOC) while still being in the appropriate viscosity range required by the intaglio printing process. The printed and cured intaglio ink of the present invention has improved chemical and mechanical resistance properties.

Intaglio printing ink comprising dendrimers

The present invention is related to a coating composition for the production of a magnetically induced image, consisting of volatile components (S) and non-volatile components, the latter consisting of an ink vehicle (I) and magnetically orientable optically variable interference pigment (P), to a process for manufacturing the coating composition, and to the use of the composition for the production of a magnetically induced image coating on a substrate with the help of applied magnetic fields. Said magnetically induced image coating may be used as a security device on value- or identity documents, brand protection labels and the like.

Coating composition for producing magnetically induced

Coating composition for producing magnetically induced images

The invention relates to passivated optically variable pigment, a method of preparing said passivated optically variable pigment, an ink composition comprising said passivated optically variable pigment, the use of said ink composition, and a document carrying a marking made with said ink composition.

Ink composition comprising optically variable pigments, use of the composition, optically variable pigment and method of treating said pigment

An intaglio printing ink comprising a first binder compound selected from the group of water-soluble or water-thinnable acrylate oligomers, and optionally, a second monomeric binder compound selected from the group comprising water-soluble or water-thinnable PEG diacrylate or polyethoxylated polyol triacrylate monomers to adjust the viscosity of the ink composition. To initiate polymerization of the binder compounds upon irradiation by electromagnetic radiation or electron beam radiation a photoinitiator is included. Further optional additives, such as pigments, fillers, photosensitizers, stabilizers emulsifiers and security pigments may be present. The ink shows excellent wipeability and allows precipitation from the wiping solution.

UV curing intaglio ink

The invention relates to abrasion-removable coating compositions suited to achieve temporary masking of variable data. The compositions are based on elastomeric resin in solution and particulate additives comprising at least one pigment. The ratio of resin to powder additives is 0.2 to 2.

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Bremblens, Switzerland

Patrick Veya