Abstract: A fabrication process produces markers for a magnetomechanical electronic article surveillance system. The marker includes a magneto-mechanical element comprising one or more resonator strips of magnetostrictive amorphous metal alloy; a housing having a cavity sized and shaped to accommodate the resonator strips for free mechanical vibration therewithin; and a bias magnet to magnetically bias the magnetomechanical element. The process employs adaptive control of the cut length of the resonator strips, correction of the length being based on the deviation of the actual marker resonant frequency from a preselected, target marker frequency. Use of adaptive, feedback control advantageously results in a much tighter distribution of actual resonant frequencies. Also provided is a web-fed press for continuously producing such markers with adaptive control of the resonator strip length.

Abstract: A method for forming a securing label including affixing a security activating material to a substrate to form a sub-assembly label, attaching the sub-assembly label to a top label material, and cutting the top label material to form a top label where the sub-assembly label and the top label form the securing label. Attaching of sub-assembly layer includes inserting the sub-assembly layer between a paper layer and a carrier layer of the top label material which have been separated from each other and then remarried after insertion.