Inventors:
Donald R. Kardon - Narberth PA
International Classification:
B31B 162
Abstract:
A tamperproof bag is provided with closure means comprising a strip of microcapsules containing an adhesive core enclosed by a shell adapted to be broken by pressure application to release the adhesive contents. The microcapsules are applied to the bag by means of a binder system or by depositing them onto an adhesive tie-coat previously applied to the bag.