Abstract: A scanning laser having a wavelength compatible with a coating binder so as to cure it as the laser scans and irradiates the coating on a moving web. A system and method for curing flakes by providing a scanning laser which scans across a moving coated substrate in a magnetic field allows images to be formed as magnetically aligned flakes are cured into a fixed position. The images have regions of cured aligned flakes. The scanning laser cures the magnetically aligned flakes within it region it irradiates. Alternatively an array of lasers can be used wherein individual lasers can be switched on and off to fix irradiated coating as a moving web is moved at a high speed.

Abstract: A method of using a hand-made circuit board for learning includes: providing a hand-made circuit board which comprises a substrate; and a medium layer disposed on a surface of the substrate to form a pattern, wherein the medium layer has a notably paintable non-conductive zone configured with a plurality of electrical blocks, and the electrical blocks are discontinuously distributed in the notably paintable non-conductive zone, so that the electrical blocks on at least one cross-section of the notably paintable non-conductive zone are not electrically connected; and drawing a drawn conductive layer on the notably paintable non-conductive zone of the pattern by an end user, wherein the drawn conductive layer has conductive particles linking the electrical particle blocks in the notably paintable non-conductive zone, thereby electrically connecting the electrical particle blocks to complete a circuit line.

Abstract: The invention relates to a method of aligning magnetic flakes, which includes: coating a substrate with a carrier having the flakes dispersed therein, moving the substrate in a magnetic field so as to align the flakes along force lines of the magnetic field in the absence of an effect from a solidifying means, and at least partially solidifying the carrier using a solidifying means while further moving the substrate in the magnetic field so as to secure the magnetic flakes in the carrier while the magnetic field maintains alignment of the magnetic flakes. An apparatus is provided, which has a belt for moving a substrate along a magnet assembly for aligning magnetic flakes. The apparatus also includes a solidifying means, such as a UV- or e-beam source, and a cover above a portion of the magnet assembly for protecting the flakes from the effect of the solidifying means.

Abstract: The invention discloses a device and a method for transferring a predeterminable, high-resolution magnetic design onto a document printed with a magnetic ink, in particular a magnetic optically variable ink. The device comprises a body of a composite permanent-magnetic material, having at least one flat or curved surface engraved with indicia corresponding to the design to be transferred, wherein the said magnetic material is permanently magnetized, preferably in a direction substantially perpendicular to the said surface. The method comprises imprinting or coating a first surface of a sheet or web with a magnetic ink or coating composition, and approaching the imprinted sheet or web to the engraved surface of a body of magnetized composite permanent-magnetic material while the ink is wet, followed by hardening the ink.

Abstract: A Light-board Writing Device for writing and erasing drawing lines or a character on the main surface of a display sheet consisting: of a display sheet having a non-magnetized surface; at least one polymer part; at least one magnetic pin; at least one lamp; and a magnetic pen having to ends. By moving one end of the magnetic pen over the main surface of the display the at least one magnetic pin is displaced and allows the light to pass to form a character or drawing lines on the main surface of the display, and, by moving the other end of the magnetic pen over the main surface of the display the at least one magnetic pin is displaced wherein said at least one pin blocks the passage of the light thereby erasing the character or the drawing lines.