A method for the rotary blind embossing of a substrate, a device for the rotary blind embossing of a substrate, a female die and/or a male die for use in a device, and to a method for producing a female die and/or a male die. The method for the rotary blind embossing of a substrate in a work station including an embossing roller and a counter-pressure roller includes the following steps: a) preparing the substrate; b) blind embossing the substrate by means of at least one female die provided on the embossing roller and at least one male die provided on the counter-pressure roller. The device for the rotary blind embossing of a substrate has a work station having an embossing roller and a counter-pressure roller, at least one female die being provided on the embossing roller and at least one male die being provided on the counter-pressure roller.

A method for embossing optically diffracting microstructures in a thin foil, such as used to pack at least one of the list comprising food, chocolate, chewing gum, gifts, jewellery, clothes, tobacco products, pharmaceutical products, the embossing being produced with an embossing rollers set-up comprising at least one cylindrical embossing roller and a cambered counter roller. The method comprises confining the at least one cylindrical embossing roller and the cambered counter roller in a single roller stand of relatively small outer dimensions designed to withstand a pressure for the at least one cylindrical embossing roller and the cambered counter roller; using on a surface of a first one of the at least one cylindrical embossing rollers at least one raised embossing element adapted for microstructure embossing, whereby one of the at least one raised embossing elements comprises a platform distant at a height in a range between 5 m and 30 m above a surrounding surface of the first cylindrical embossing roller adjacent to it, and a pattern engraved on top of the platform (5), whereby the pattern comprises the optically diffracting microstructures with periodicity of gratings in the range smaller than 30 m that produce from a diffuse or directed source of light in the visible wavelength range diffraction images with high contrast and high luminosity in a defined observation angle; and adjusting the pressure for the at least one cylindrical embossing roller on the thin foil in a range less than 80 bar relative to a platform area of approximately 100 mm.sup.2.

Embodiments of the present disclosure provide an embossing plate and a manufacturing method thereof, and an alignment layer transfer plate and a manufacturing method thereof. The embossing plate includes an embossing plate body, and a plurality of protrusions distributed in an array are formed on an embossing surface of the embossing plate body. The embossing plate according to the present disclosure can improve a thickness uniformity of the alignment layer and a quality of the surface of the alignment layer.

A method is provided for making stamper plates for an embossing drum for embossing tape media. At least one first stamper plate is formed using a master template. The at least one first stamper plate includes first land and groove patterns that are an inverse of the master template land and groove patterns. At least one second stamper plate is formed from the at least one first stamper plate. The at least one second stamper plate includes second land and groove patterns that are an inverse of the first land and groove patterns. Furthermore, the first stamper plates and the second stamper plates have four sections arranged in a travel direction of the tape media, a first and a fourth of the four sections having land and groove patterns that are laterally mirrored with respect to each other. A first stamper plate is coupled to a second stamper plate to form part of the drum for embossing tape media.

An embossing roll has an embossing region that has a plurality of embossing elements. Each of the embossing elements projects outward from a surface of the embossing roll a distance of about 0.2 mm to about 2.0 mm. The plurality of embossing elements are arranged in the embossing region in a pattern. The plurality of embossing elements has at least a first set of embossing elements and a second set of embossing elements. The first set of embossing elements has a first shape and the second set of embossing elements has a second shape that is different from the first shape.

A method is provided for making stamper plates for an embossing drum for embossing tape media. The stamper plates include at least one first plate having first land and groove patterns and at least one second plate having second land and groove patterns that are an inverse of the first land and groove patterns. Furthermore, the first stamper plates and the second stamper plates have four sections arranged in a travel direction of the tape media, a first and a fourth of the four sections having land and groove patterns that are laterally mirrored with respect to each other.

A hot stamping roller, the roller being designed to cooperate with an object to be decorated, the roller comprising at least a first roller part and a second roller part, each roller part being configured to rotate around a longitudinal axis of the roller, the rotation of the first roller part being independent of the rotation of the second roller part.

A production facility for manufacturing motor vehicle license plates includes a hot stamping machine configured for the continuous application of ink to stamped plates by hot stamping. At least one first conveying component is provided to transport stamped plates through the hot stamping machine. The production facility includes at least one transfer arrangement having a buffer with a cashing component for at least two flat objects wherein the production facility includes a control unit for controlling the buffer for a successive deposition of flat objects from the buffer onto the first conveying component. In particular, with such a buffer, stamped plates and/or templates can be deposited on the first conveying component. The disclosure also relates to a process for operating such a production facility.

A method is provided for making an embossing drum that is useable to emboss tape media. The method includes assembling together multiple stamper plates that each have embossing features for embossing tape media, and the stamper plates include at least one first plate and at least one second plate. Furthermore, the embossing features of each first plate are inverted with respect to the embossing features of each second plate.

An apparatus for processing the surface of a workpiece includes: a first rotating body connected to a first rotating shaft and including a first protruding portion connected to a part of the outer circumference thereof; a second rotating body connected to a second rotating shaft and including a second protruding portion connected to a part of the outer circumference thereof; and a third rotating body connected to a third rotating shaft and including a third protruding portion connected to a part of the outer circumference thereof, wherein the first to third rotating shafts are in the same plane, a first angle between the first and second rotating shafts, a second angle between the first and third rotating shafts, and a third angle between the second and third rotating shafts are identical, outer circumferences of the first to third rotating shafts adjacent to one another form a pathway through which a workpiece can pass, and the size of the pathway is adjusted by moving the first rotating body.