A METHOD FOR PRINTING WATER-SOLUBLE FILM

摘要

A method to produce a water-soluble detergent pouch, having a graphic printed thereon, said method comprising feeding a water-soluble film through,
a) at least one flexographic printing unit; and then
b) a water-soluble detergent pouch producing unit;
characterized in that
i) a first water-soluble film is thermo and/or vacuum formed in a series of moulds in the water-soluble detergent pouch producing unit, and a detergent composition is then poured into the moulds;
ii) a second water-soluble film is fed through the flexographic printing unit and then immediately thereafter into the water-soluble detergent pouch producing unit, and is positioned such that it overlaps with the first water-soluble film; and
iii) the first and second films are sealed together to form water-soluble detergent pouches.