| 摘要 |
<p>It consists in printing, by means of intaglio (gravure) or flexography, on any type of flexible support, with normal inks, until the desired graphic assembly is completed; without interruption of continuity of printing, in the following printing body, applying a varnish consisting of various resin compositions, such as nitrocelluloses, silicones, waxes, paraffin and a polyethylene with a low polymerization index onto the areas of the printed graphic assembly which have to be hidden; and, finally, by means of the following printing body of the machine, applying to the previously varnished areas a covering ink consisting of 30% resins plus pigments and 70% solvents. It applies to advertising and product promotion.</p> |
