| 摘要 |
A method for printing with printing inks, the curing of which is activated by radiation with light, preferably UV light, and in which web with printing ink is advanced stepwise, and in which, above the printing ink, at least one light source is provided in a light unit, said light source being positoned in the travelling direction of the web after the printing process. In view of eliminating border marks with lustreless print which occur where the border between lighted and not yet lighted web with printing ink has been stagnant relative to the light source, the method comprises providing the light source with means, by means of which the upstream border of the lighted area, seen in the travelling direction of the web with the printing ink, is displaceable, and that these means are activated for displacement of this border in a direction opposite the travelling direction in periods, in which the web with the printing ink is stationary relative to the light unit. |
