Hid Global Rastede Gmbh

Hid Global Cid Sas

Carsten Senge

Samantha Nelwan

Disclosed is an ink comprising a transparent matrix being UV curable and heat scalable, and at least one pigment component. The ink in its UV-cured state has a peel strength in the range of about 6 to 8 N/cm, wherein this adhesiveness is achievable by means of a further lamination step under the influence of pressure and heat so that the ink acts as a hot glue. Further disclosed is a safety structure comprising a semitransparent layer being formed at least partially by the UV-cured ink, and a secure article comprising the safety structure. Further disclosed is a use of the ink for silkscreen printing.

UV curable and heat sealable ink

The present disclosure refers to a method for manufacturing a secured window in an identification card. The method comprising embedding information in a transparent window of the identification card and covering the embedded information with a thermochromic layer on a first side of the transparent window. The thermochromic layer is configured to become substantially transparent when subjected to a level of heat greater than a determined threshold value. In addition the method comprises the step of covering a second side of the transparent window, opposite to the first side, with a further thermochromic layer, the further thermographic layer being configured to become substantially transparent when subjected to a level of heat greater than the determined threshold value, such that the embedded information becomes visible through the transparent window when both sides of the window are exposed to the level of heat greater than the determined threshold value.

Identification card with thermochromic window

The method comprises a pre-lamination step wherein a layer is placed in contact at least on one side with a lamination plate having a recess and the layer undergoes lamination such that a raised portion is formed on the layer; an assembling step wherein another layer is placed in contact with the layer, and the raised portion of the layer is at least partially placed in an opening of the other layer and a lamination step wherein said layers are laminated together.

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Bad Zwischenahn Bloh, Germany

Carsten Senge