Among other concepts, this disclosure describes a thermal/optical/electronic authentication system (covert or non-covert) for device/system implementations. The authentication system may be based on different design parameters such as i) materials composition, ii) thickness of material, iii) geometry of material, iv) external effects including use of an external DC bias and curing, etc. The authentication testbeds can be configured to include one or more inks. Using such methods as discussed herein, the authentication can be broadened to include near-IR (700-900 nm), short wave IR (1-2.6 mm), and UVA (300-400 nm) or any spectrum. Printed resistors are very difficult to duplicate without Ag-BST13 ink. If necessary, a printed resistor network on a respective substrate can be hidden using a layer of non-sintered Ag-BST13 (non-conductive).

Among other concepts, this disclosure describes a thermal/optical/electronic authentication system (covert or non-covert) for device/system implementations. The authentication system may be based on different design parameters such as i) materials composition, ii) thickness of material, iii) geometry of material, iv) external effects including use of an external DC bias and curing, etc. The authentication testbeds can be configured to include one or more inks. Using such methods as discussed herein, the authentication can be broadened to include near-IR (700-900 nm), short wave IR (1-2.6 mm), and UVA (300-400 nm) or any spectrum. Printed resistors are very difficult to duplicate without Ag-BST13 ink. If necessary, a printed resistor network on a respective substrate can be hidden using a layer of non-sintered Ag-BST13 (non-conductive).

The invention relates to a method for preparing an anti-counterfeiting modal fiber, including: mixing a pulp stock solution with a cellulose catalyst, alkalizing, aging, sulfonating, and then dissolving the pulp stock solution in an alkaline solution to obtain a treatment solution; mixing the treatment solution with multiple amino acid-metal chelates, filtering, defoaming and ripening to obtain a spinning stock solution; and mixing the spinning stock solution with a spinning bath additive, and wet spinning, followed by drafting, defoaming, desulfurizing, water washing, and other post-treatments, to obtain an anti-counterfeiting modal fiber, wherein the amino acid metal-chelates account for 0.5%-1.5% by weight of the spinning stock solution. Amino acid-metal chelates are used to anti-counterfeit and encrypt the modal fibers, and the anti-counterfeiting and encrypting is involved in the spinning stock solution of modal fibers. The fiber source can be tracked and identified by detecting the species of metal elements and amino acids.

The invention relates to a method for preparing an anti-counterfeiting modal fiber, including: mixing a pulp stock solution with a cellulose catalyst, alkalizing, aging, sulfonating, and then dissolving the pulp stock solution in an alkaline solution to obtain a treatment solution; mixing the treatment solution with multiple amino acid-metal chelates, filtering, defoaming and ripening to obtain a spinning stock solution; and mixing the spinning stock solution with a spinning bath additive, and wet spinning, followed by drafting, defoaming, desulfurizing, water washing, and other post-treatments, to obtain an anti-counterfeiting modal fiber, wherein the amino acid metal-chelates account for 0.5%-1.5% by weight of the spinning stock solution. Amino acid-metal chelates are used to anti-counterfeit and encrypt the modal fibers, and the anti-counterfeiting and encrypting is involved in the spinning stock solution of modal fibers. The fiber source can be tracked and identified by detecting the species of metal elements and amino acids.

Systems and methods provide for a document fraud detection system for identifying fraudulent documents. The document fraud detection system can include up to three steps of fraud detection, where if the document fails any of the three steps, the document can be flagged for further review. In another embodiment, the document fraud detection system can score each of the three tests, where the scores represent the likelihood that the document is fraudulent. If the combined score satisfies a predetermined criterion, the document can be flagged as potentially fraudulent. The three tests can include analyzing an scanned image of the document and comparing to other similar documents to determine if there have been any alterations. The second test can compare indents to previous documents, and the third test can analyze chemical and biometric factors that may indicate whether the document has been altered.

The invention provides formulations and masterbatches of a polymeric material and XRF-identifiable markers, for producing transparent elements including a polymer and at least one XRF-identifiable marker for a variety of industrial uses.

An apparatus and method for classifying value documents includes least two sensor devices arranged to capture waves reflected on a front side and on a back side of a value document and to generate corresponding sensor data or to capture properties of the value document in at least two different regions of the value document by means of different measuring principles and to generate corresponding sensor data. At least one evaluation device is arranged to classify the value document with the aid of the sensor data generated by the at least two sensor devices, which sensor data relate to the waves reflected on the front side and back side of the value document or to the properties of the value document captured in the at least two different regions of the value document by means of different measuring principles.

The present invention provides an anti-counterfeiting pattern processing apparatus and a method thereof that quickly process the anti-counterfeiting pattern with a low cost by forming a fine pattern of a nanometer or micrometer scale by using a laser processing system, and an apparatus and a method thereof detecting the anti-counterfeiting pattern of the micrometer or nanometer scale by using a laser measuring system.

The present invention provides an anti-counterfeiting pattern processing apparatus and a method thereof that quickly process the anti-counterfeiting pattern with a low cost by forming a fine pattern of a nanometer or micrometer scale by using a laser processing system, and an apparatus and a method thereof detecting the anti-counterfeiting pattern of the micrometer or nanometer scale by using a laser measuring system.

A method and apparatus for evaluating the fitness of an object based on determination of a measure of permeability of the object, including positioning the object between a fluid source and a gasochromic material, dispensing a fluid from the fluid source towards the object such that at least a portion of the fluid flows through the object and contacts the gasochromic material, exciting the gasochromic material with an excitation source such that an emission of the gasochromic material is in response to the excitation source and the fluid, detecting the emission from the gasochromic material to determine the permeability of the object, and evaluating the fitness of the object based on the determination of the permeability of the object. The gasochromic material may also be included in the object.