Sicpa Holding Sa

Sylvain Jaquier

Thomas Tiller

Edgar Mueller

Edgar Muller

Frédéric Gremaud

Xavier Marguerettaz

Edgar Müller

A method and means for identifying the authenticity and the genuine nature of a solid or liquid bulk material, by incorporating a marking composition containing at least one trace ion into the said bulk material, whereby the total concentration of the incorporated trace ions in the market bulk material is chosen to be lower than the corresponding concentration of the same ions in standard sea water. The authenticity and the genuine nature or the adulteration level of the marked bulk material can be tested in-the-field using electrochemical sensors, and confirmed in the laboratory using a method such as atomic absorption spectroscopy, ion chromatography or mass spectrometry.

Method of marking a product, marked product resulting thereof, and method of identifying same

Re-dispersible pigmented printing ink compositions, preferably for the continuous ink jet printing process are obtained by the addition of a flocculating agent to the pigment dispersion in the printing liquid. The compositions do not form hard sediments and are easy to re-disperse on stopping and resuming the printing operations. Suitable flocculating agents bind the pigment particles in the sediment into three-dimensional 'airy' structures, which are easy to break up. The ink compositions of the invention are furthermore characterized by a good printability in the dispersed state.

Pigmented ink composition

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Vuadens, Switzerland

Sylvain Jaquier