Abstract

The invention discloses an inking system for a rotary printing machine, like a flexographic or rotogravure press. The inking system uses the nip area between two cylinders (2, 3) of the machine as the sole source for inking the printing cylinder. This results in an inking system with very little ink, thereby gaining in reaction time and ink waste.

IPC Classes  ?

• B41F 31/02 - Ducts, containers, supply or metering devices
• B41F 9/06 - Rotary intaglio printing presses - Details
• B41F 9/10 - Wiping mechanisms with doctors, scrapers, or like devices

Abstract

The present invention concerns an inking system for a flexographic or a rotogravure press. The inking system uses a very small amount of ink (10) coupled with an ink source (6) made of two tanks (62) with two different inks. Thanks to feedback given by measuring the output directly on the printed support, the system mixes the ink in the optimal proportions to ensure an optimal printing quality at any time. It can compensate any effect due to environmental changes like the humidity or the temperature. This system, coupled with a seven colours press allows for the replacement of spot colours in most cases therby saving time and costs.

IPC Classes  ?

• B41F 31/02 - Ducts, containers, supply or metering devices
• B41F 9/06 - Rotary intaglio printing presses - Details
• B41F 9/10 - Wiping mechanisms with doctors, scrapers, or like devices
• B41F 33/00 - Indicating, counting, warning, control or safety devices