A method for producing polymer papers of value or polymer security papers is described. The method may include providing a polymer substrate of at least one polymer. The polymer substrate may have a first substrate side and a second substrate side. The method may also include providing a security element that includes a transfer film. The transfer film may include at least one security feature and a detachable carrier film. The method may further include applying the transfer film at least one of onto the first substrate side and onto the second substrate side, connecting the at least one security feature to at least one of the first substrate side and the second substrate side, and removing the detachable carrier film.

A method for producing polymer papers of value or polymer security papers is described. The method may include providing a polymer substrate of at least one polymer. The polymer substrate may have a first substrate side and a second substrate side. The method may also include providing a security element that includes a transfer film. The transfer film may include at least one security feature and a detachable carrier film. The method may further include applying the transfer film at least one of onto the first substrate side and onto the second substrate side, connecting the at least one security feature to at least one of the first substrate side and the second substrate side, and removing the detachable carrier film.

The present invention provides a security film (100) with dual color shift characteristics, the security film (100) comprising a substrate layer (110) having a first substrate surface (112) and a second substrate surface (114), a first liquid crystal layer (120), including a first liquid crystalline material, disposed above the first substrate surface (112), and a second liquid crystal layer (130), including a second liquid crystalline material, disposed above the second substrate surface (114). The first liquid crystal layer (120) and the second liquid crystal layer (130) are adapted to exhibit dual color shifts, on rotation and/or translation of the security film (100). Also, a method (200) for manufacturing the security film (100) has also been provided.

The present invention provides a security film (100) with dual color shift characteristics, the security film (100) comprising a substrate layer (110) having a first substrate surface (112) and a second substrate surface (114), a first liquid crystal layer (120), including a first liquid crystalline material, disposed above the first substrate surface (112), and a second liquid crystal layer (130), including a second liquid crystalline material, disposed above the second substrate surface (114). The first liquid crystal layer (120) and the second liquid crystal layer (130) are adapted to exhibit dual color shifts, on rotation and/or translation of the security film (100). Also, a method (200) for manufacturing the security film (100) has also been provided.

An authentication method includes receiving, at a processor, a signal representing an image of a serialization code and multiple flecks of a label, the flecks having a random distribution. The processor detects the serialization code and applies a modification to the image to produce a modified image. A subset of flecks of the modified image is detected, and metrics associated with each fleck from the subset of flecks are identified. The identified metrics are compared with metrics associated with a unique signature, and a message is displayed, via a user interface, indicating an authenticity of the label based on the comparison.

A method for manufacturing a portable data carrier by means of a continuous manufacturing method, comprises the steps: providing at least one foil as a rolled good, unrolling at least one first foil, with at least a first foil being coated at least partly with an adhesive on at least one side, with at least the first foil being scored on at least one side along at least one creasing edge, with at least the first foil being folded up in precise fit along at least one creasing edge and bonded, with the foil being folded up in the direction of the side which is coated with adhesive, with the side coated with adhesive being arranged on the opposite side of the foil which has at least one scored creasing edge along which it is folded.

A method for manufacturing a portable data carrier by means of a continuous manufacturing method, comprises the steps: providing at least one foil as a rolled good, unrolling at least one first foil, with at least a first foil being coated at least partly with an adhesive on at least one side, with at least the first foil being scored on at least one side along at least one creasing edge, with at least the first foil being folded up in precise fit along at least one creasing edge and bonded, with the foil being folded up in the direction of the side which is coated with adhesive, with the side coated with adhesive being arranged on the opposite side of the foil which has at least one scored creasing edge along which it is folded.

The present invention provides an anti-counterfeit marking technique for verifying authenticity of objects using x-rays fluorescence (XRF) analysis.

The present invention provides an anti-counterfeit marking technique for verifying authenticity of objects using x-rays fluorescence (XRF) analysis.

The invention relates to an optical structure (5) having a relief effect, comprising: - a support (7) adapted for aligning liquid crystals, - a deposit (9) in contact with the support of a substance in the form of at least one pattern (11), which partially covers the support, and - a liquid crystal layer (13) which at least partially covers the support and said pattern and is in contact with the support.