PROCESS FOR PRINTING ON A CONTINUOUS STRIP OF FLEXIBLE FILM AND A STRIP OF DECORATED FLEXIBLE FILM.

摘要

A process for printing on a continuous strip of flexible film and a strip of decorative flexible film, such as a plastic film used in the formation of adhesive bandages, comprising the steps of: passing continuously and progressively the continuous strip through a plurality of ink and/or varnish printing stations, which are arranged in series and intercalated by drying stations, each of the printing stations printing, with solvent or water based ink and/or varnish, along the width of an upper face of the continuous strip, a plurality of predetermined respective image portions; passing continuously and progressively the continuous strip through a varnishing station, in order to cover the upper face of the continuous strip and the image portions printed thereon with a photopolymerizable varnish layer; passing the varnished continuous strip through a photopolymerization station, in which the varnish is photopolymerized preferably by ultraviolet (UV) radiation; and conducting the continuous strip to a subsequent step of any process for forming an adhesive bandage with said continuous strip.