A sheet separation device to open a two-ply sheet includes a rotator; a nipping member disposed opposite the rotator and configured to nip the two-ply sheet with the rotator; a conveyor configured to convey the two-ply sheet between the rotator and the nipping member, and a winding member disposed adjacent to the rotator. The conveyor conveys the two-ply sheet with a bonded portion of the two-ply sheet being an upstream end or a downstream end of the two-ply sheet in a conveyance direction of the two-ply sheet. The winding member winds the two-ply sheet around the rotator, to create a difference in winding circumferential length between the two sheets and separate the two sheets.

A laminate includes a recording layer, a translucent front covering layer and a security foil laminated between the recording layer and the front covering layer and sealed in the laminate. The security foil has a thickness that is ⅕ or less the thickness of the recording layer to prevent or reduce falsification reusing the security foil. The security foil includes a relief layer having a relief surface and a protective layer covering the relief surface. In the thickness direction of the laminate, the protective layer adheres to the recording layer and the relief layer adheres to the front covering layer. The adhesion strength between the security foil and the recording layer is higher than the adhesion strength between the security foil and the front covering layer.

It is intended to provide an electrostatic adsorbable laminated sheet which is less likely to cause paste residues, etc. upon peeling from an adherend, exhibits further enhanced adsorbability to an adherend, additionally exhibits enhanced adhesiveness at an electrostatic adsorbable interface, and thereby has enhanced handleability. Electrostatic adsorbable laminated sheet includes label layer, support layer, and grip layer disposed between the label layer and the support layer, wherein the label layer and the support layer are electrostatically adsorbed to each other via the grip layer.

A composite workpiece having at least one metallic cover layer and a non-metallic core layer is disclosed. The metallic cover layer and the non-metallic core layer are connected to one another, with one lying on top of the other. The metallic cover layer, in a marking region on a side facing toward the non-metallic core layer, includes a profile, in particular a surface profile, for marking the composite workpiece.

A polymer based composite contains (a) a polyamide component, (b) a (co)-polyamide based on ether units and amide units, and (c) carbon black. It has been found that (1) the (co)-polyamide (b) offers sufficient absorbency for the printing ink, and (2) the selection of the polyamide component, the (co)-polyamide, and the amount of the carbon black result in both sufficient transparency and sufficient absorption centers for the laser energy. A moulded article can be made of the polymer based composite. A layered structure can be made containing at least one layer made of the polymer based composite and a security and/or valuable document containing the layered structure.

Disclosed embodiments generally relate to a transaction card with a fabric inlay. The transaction card may include a housing component having a first housing surface opposite a second housing surface and an inlay component having a first inlay surface opposite a second inlay surface. The inlay and housing may be joined along the second inlay surface and the first housing surface. In addition, the first inlay surface may include a fabric material and a backer layer configured to support the fabric material of the first inlay surface.

The invention provides an acoustic material structure and an assembly method of the acoustic radiation structure. The acoustic material structure comprises acoustic units which can be attached onto surfaces of acoustic radiation structures. Each acoustic unit comprises a thin sheet, an air cavity between the thin sheet and the surface of the sound radiation structure, and openings penetrating through the acoustic unit with one end connected to the cavity. The openings can reduce the spring effect of the fluid medium in the cavity, so that the acoustic units attached onto the surface of the sound radiation structure can provide low-frequency sound insulation effects. The acoustic unit may also include support bodies, mass blocks, and constraint bodies. The working frequencies of the acoustic unit can be regulated by the support bodies, mass blocks and constraint bodies. The acoustic material structure can effectively suppress sound radiation from low- and middle-frequency sound waves which have relatively larger wavelength under costs of small weight and space. Moreover, the acoustic material structure can enhance the exchange rate of the heat from the attached structure surfaces by the vibration of the thin sheet.

A game token by which a plurality of RFID tags embedded in a plurality of the game tokens stacked each other can be read in a relatively stable manner is provided. A game token is provided with a security part and a receiving part that receives the security part. The security part has a shape with a diameter smaller than the diameter of the receiving part, a structure with a plurality of plastic layers laminated together, an RFID tag, and a visible print layer indicating a type or ID of the game token. The receiving part has a surface. The surface of the receiving part has a recessed portion for receiving the security part, and the depth of the recessed portion is 25% or more of the thickness of the game token.

The disclosure provides a core layer for an information carrying card, resulting information carrying card, and methods of making the same. A core layer for an information carrying card comprises at least one thermoplastic layer having at least one cavity, an inlay layer, and, and a crosslinked polymer composition. At least one portion of the inlayer layer is disposed inside the at least one cavity of the at least one thermoplastic layer. The crosslinked polymer composition is disposed over the at least one thermoplastic layer and contacting the inlayer layer.

When forming layer stacks in the presence of solder material, uncontrolled flow of the solder material at the interface of two different layers of the layer stack may significantly be mitigated by providing an area of increased pressure in the material of the overlaying foil layer. For example, the area of increased pressure may be generated during the lamination process by providing a pressure inducing structure, for instance on the underlying foil layer, which laterally surrounds the solder material and therefore, in combination with the material of the overlying foil layer, reliably confines the solder material.