Patent ID: 6293200
Filing Date: 2001-09-25
Classification: B41F,F26B

Abstract:
A method of drying inks which are printed in a state of being liquefied by means of a solvent onto a paper web in the printing mechanisms of a rotary intaglio printing machine, including:downstream of each printing mechanism of said rotary intaglio printing machine, passing the paper web through a respective drier which has a substanially closed housing,passing a gas through the respective drier of said rotary intaglio printing machine to receive and carry away the solvent, an inert gas being used as a drying gas in at least one of the driers, andselecting a through-put of the inert gas through said drier of said rotary intaglio printing machine so that a solvent concentration, which is very high in comparison with drying with air occurs in said drier,so that a very rapid drying of ink layers, freshly printed in a printing mechanism preceding said at least one drier, is obtained in order to allow printing of a next ink layer in a respective subsequent printing mechanism of said rotary intaglio printing machine.