Disclosed is an ink comprising a transparent matrix being UV curable and heat scalable, and at least one pigment component. The ink in its UV-cured state has a peel strength in the range of about 6 to 8 N/cm, wherein this adhesiveness is achievable by means of a further lamination step under the influence of pressure and heat so that the ink acts as a hot glue. Further disclosed is a safety structure comprising a semitransparent layer being formed at least partially by the UV-cured ink, and a secure article comprising the safety structure. Further disclosed is a use of the ink for silkscreen printing.

A method to manufacture an article comprises applying an ink to a substrate. The ink includes a liquid vehicle, a plurality of solid metal particles, a plurality of gallium-containing particles, and a thermally activated flux. The method further comprises curing the ink by heating the substrate to within an activation temperature range of the flux. The article manufactured by this method comprises a substrate, an electronically conductive film arranged on the substrate, and an adherent barrier layer covering both the substrate and the film. The film includes a plurality of solid metal particles with a gallium-based liquid metal bridging the plurality of solid metal particles.

A heat dissipation device includes a body including a first metal sheet and a second metal sheet coupled to the first metal sheet. The first metal sheet at least partially defines a first channel including a first plurality of curves, a second channel including a second plurality of curves, and an interconnecting channel fluidly coupled to the first channel and the second channel. The first channel and the interconnecting channel at least partially surround the second channel, a unit volume of the first channel is a same as a unit volume of the interconnecting channel, and the unit volumes of the first channel and the interconnecting channel are different from a unit volume of the second channel.

An apparatus is disclosed for transferring a pattern of a composition containing particles of an electrically conductive material and a thermally activated adhesive from a surface of a flexible web to a surface of a substrate. The apparatus comprises: respective drive mechanisms for advancing the web and the substrate to a nip through which the web and the substrate pass at the same time and where a pressure roller acts to press the surfaces of the web and the substrate against one another, a heating station for heating at least one of the web and the substrate prior to, or during, passage through the nip, to a temperature at which the adhesive in the composition is activated, a cooling station for cooling the web after passage through the nip, and a separating device for peeling the web away from the substrate after passage through the cooling station, to leave the pattern of composition adhered to the surface of the substrate.

An apparatus is disclosed for transferring a pattern of a composition containing particles of an electrically conductive material and a thermally activated adhesive from a surface of a flexible web to a surface of a substrate. The apparatus comprises: respective drive mechanisms for advancing the web and the substrate to a nip through which the web and the substrate pass at the same time and where a pressure roller acts to press the surfaces of the web and the substrate against one another, a heating station for heating at least one of the web and the substrate prior to, or during, passage through the nip, to a temperature at which the adhesive in the composition is activated, a cooling station for cooling the web after passage through the nip, and a separating device for peeling the web away from the substrate after passage through the cooling station, to leave the pattern of composition adhered to the surface of the substrate.

A tensioning frame for tensioning a printing screen comprises struts to reinforce the constituent beams. These may be provided either on a supplementary brace plate or integrally formed with the beam. A shaft may be used to retain engagement bodies within pockets formed in the beam.

A tensioning frame for tensioning a printing screen comprises struts to reinforce the constituent beams. These may be provided either on a supplementary brace plate or integrally formed with the beam. A shaft may be used to retain engagement bodies within pockets formed in the beam.

A method for obtaining a glazing includes a glass sheet covered, on one of its faces with electroconductive patterns having in at least one area, a so-called extra thickness area, a greater thickness than in the other areas, the method including depositing by screenprinting a first electroconductive layer forming patterns on one side of the glass sheet, then depositing by a digital printing technique, in the or each extra thickness area, a second electroconductive layer on the first layer while the latter is still wet, then a heat treatment step to cure the first and the second layer.

A method for manufacturing a flex-tolerant three-dimensional printed antenna suitable for use in an electronic device provides a three-dimensional printed antenna with base layer, radiation layer, through holes, and feeder. The radiation layer includes a first radiation region, at least one second radiation region, and a feed end. A region between the first and second radiation regions is defined as a bent region. The radiation layer is formed by a screen-printing plate by a planar printing process. The through holes on the bent region form a line for bending. The feeder is electrically connected to the feed end. The second radiation region is canted from the bending line with respect to the first radiation region to form the three-dimensional printed antenna. The three-dimensional printed antenna and an electronic device are also disclosed.

A method for manufacturing a flex-tolerant three-dimensional printed antenna suitable for use in an electronic device provides a three-dimensional printed antenna with base layer, radiation layer, through holes, and feeder. The radiation layer includes a first radiation region, at least one second radiation region, and a feed end. A region between the first and second radiation regions is defined as a bent region. The radiation layer is formed by a screen-printing plate by a planar printing process. The through holes on the bent region form a line for bending. The feeder is electrically connected to the feed end. The second radiation region is canted from the bending line with respect to the first radiation region to form the three-dimensional printed antenna. The three-dimensional printed antenna and an electronic device are also disclosed.