Nordenia Deutschland Gronau Gmbh

Jackst&auml;dt Gmbh

Mondi Ag

Mondi Consumer Packaging Technologies Gmbh

Mondi Gronau Gmbh

Michael Kohla

Ralf Niepelt

Dieter Homölle

Christoph Frigge

Mathias Perick

A method for contact-free testing of antennas applied to a material web, wherein the material web having the antennas is passed to a measurement device. The antennas are passed past an assigned measurement antenna arrangement of the measurement device in the region of the measurement device and the measurement antenna arrangement has a high-frequency signal Sof a transmitter applied to it. This signal is correlated with a pre-determined working frequency fof the antennas. The high-frequency signal Sthat returns from the measurement antenna arrangement is determined and compared with default values, and the adherence to production tolerances is determined by the comparison of the returning high-frequency signal Swith the default values for each of the individual antennas.

Method for contact-free testing of antennas applied to a material web

A film having an imprinted antenna, for use with an RFID chip. The antenna consists of a conductor track provided with connector ends. According to the invention, the antenna, applied in a printing method, with a conductive printing ink, has window-like recesses in the conductor track, whereby the area of the recesses amounts to at least 20% of the total area having the recesses.

Film having an imprinted antenna

A luminescent coating compound of organic binder and luminescent fibers containing at least one organic binder and fibers which of a fiber-forming material with at least one luminescent dye or pigment distributed therein. Also a process of producing coatings of such compounds and articles with such coatings.

Luminescent coating compound

Growing community of inventors

Havixbeck, Germany

Michael Kohla