The present invention relates to the field of protecting value documents and value commercial goods against counterfeit and illegal reproduction. In particular, the present invention provides processes for producing optical effect layers (OELs) comprising non-spherical magnetic or magnetizable particles and comprising a motif made of at least two areas made of a single applied and cured layer, said motif being obtained by using a selective curing performed by irradiation with an actinic radiation LED source (x41) comprising an array of individually addressable actinic radiation emitters.

The present disclosure provides a method for manufacturing a gel nail sticker including: forming an adhesive layer by applying an adhesive on a first film layer 10; forming a base printing layer having at least one color on the first film layer; forming a first gel layer having flexibility on the base printing layer; and forming a second gel layer by mixing a resin composition having a —NCO functional group with a coating solution containing a resin composition having an —OH functional group and a UV curable composition on the first gel layer, in which the forming of the second gel layer includes forming the second gel layer including a urethane coating film having a urethane bond by causing a urethane reaction between the resin composition having the —OH functional group and the resin composition having the —NCO functional group.

The method includes the steps of: applying atmospheric plasma on each area portion of the surface of a metal foil to be treated; increasing the surface free energy of the metal foil, making said surface free energy compatible with the surface tension of the varnish to be applied to the metal foil; applying a UV-cured varnish layer, which may be a oligomer, a monomer or a photo-initiator, having a solids content of 99% to 100% to the surface of the metal foil subjected to the atmospheric plasma; and curing the varnish layer using UV radiation to form a varnish coating adhered to the surface of the metal foil.

There is provided a decorative sheet having excellent design properties, i.e., low gloss, and having fingerprint resistance, high durability (particularly scratch resistance or contamination resistance), and processability. A decorative sheet (1) according to this embodiment includes: a base material layer (2); and a surface protective layer (5) provided on one surface of the base material layer (2), in which the surface protective layer (5) has ridge-like parts provided to project in a ridge-like shape and form an irregular shape on the surface, RSm/Ra of the irregular shape of the surface protective layer (5) is within the range of 10 or more and 300 or less, the surface protective layer (5) contains an ionizing radiation curable resin as a main material, the ionizing radiation curable resin contains, as a main component, a tetrafunctional acrylic resin containing a repeating structure, the repeating structure is any one of the structures of ethylene oxide, propylene oxide, and ε-caprolactone, and the number of repetitions of the repeating structure is 12 or more.

A method for manufacturing a structure on a surface of a workpiece (1) is disclosed, the method having the following steps: applying a liquid base layer (2) onto the surface of the workpiece (1); spraying on at least one droplet (3) into the not yet congealed base layer (2), wherein the at least one droplet (3) at least partially, preferably completely, penetrates into the base layer (2); fixing the base layer (2); and at least partially removing the at least one droplet (3).

Further, a second method having the following steps is disclosed: spraying on at least one droplet (3) onto the surface of the workpiece (1); applying a liquid base layer (2) onto the surface of the workpiece (1), wherein the base layer (2) flows around the at least one droplet (3) and preferably at least partially covers the at least one droplet (3); fixing the base layer (2); at least partially removing the at least one droplet (3).

Finally, a device for performing the methods is disclosed.

Methods for depositing materials are described. The methods comprise maintaining a substrate support at a substrate support temperature which is lower than a precursor source temperature. The methods further comprise condensing or depositing a precursor on a substrate, and then curing condensed or deposited precursor to form a layer.

A machine for drying inks of the UV type, the machine including a supporting frame, which forms at least one exposure chamber, which can be accessed from the outside and accommodates at least one UV ray emission source. On the supporting frame, there is at least one carriage which supports rotatably at least one pan for supporting at least one object to be processed which is provided, on its surface, with at least one print provided by UV inks. Elements are furthermore provided for the rotational actuation of the pan; the carriage is movable in order to move the pan from an exposure position to at least one respective access position, in which the pan is arranged outside of the exposure chamber, in order to allow the loading or unloading of the object on or from the pan.

A microstructured article includes a nanovoided layer having opposing first and second major surfaces, the first major surface being microstructured to form prisms, lenses, or other features. The nanovoided layer includes a polymeric binder and a plurality of interconnected voids, and optionally a plurality of nanoparticles. A second layer, which may include a viscoelastic layer or a polymeric resin layer, is disposed on the first or second major surface. A related method includes disposing a coating solution onto a substrate. The coating solution includes a polymerizable material, a solvent, and optional nanoparticles. The method includes polymerizing the polymerizable material while the coating solution is in contact with a microreplication tool to form a microstructured layer. The method also includes removing solvent from the microstructured layer to form a nanovoided microstructured article.

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 magnetic assemblies and methods for producing optical effect layers (OELs) on a substrate, said method comprising a step of exposing a coating composition comprising platelet-shaped magnetic or magnetisable pigment particles to the magnetic field of the magnetic assembly so as to bi-axially orient at least a part of the platelet-shaped magnetic or magnetisable pigment particles.

The present invention relates to the field of protecting value documents and value commercial goods against counterfeit and illegal reproduction. In particular, the present invention provides processes for producing optical effect layers (OELs) comprising non-spherical magnetic or magnetizable particles and comprising a motif made of at least two areas made of a single applied and cured layer, said motif being obtained by using a selective curing performed by irradiation with an actinic radiation LED source (x41) comprising an array of individually addressable actinic radiation emitters.