Patent ID: 7694642

Claim:
A printing press comprising: at least one printing unit for printing a web-shaped printing material; a device for applying a liquid mixture of a silicone oil concentrate and at least water to the web-shaped printing material; and a cooling roll for the web-shaped printing material; the device for applying a liquid mixture including: a reservoir for the silicone oil concentrate; a supply source for the water; a mixing tank for the silicone oil concentrate and the water; an applicator for transferring the liquid mixture onto the printing material, the applicator having at least one container for the liquid mixture and a float element or a fill level sensor connected to a control unit and/or regulating unit for signal transmission and/or data transmission as a function of a fill level, a buffer tank for the silicone oil concentrate separated from the mixing tank, the buffer tank receiving the silicone oil concentrate from the reservoir; and a supply line from the buffer tank to the mixing tank and a valve in the supply line operated by the control unit and/or regulating unit so that a continuous, or quasi-continuous, or intermittent flow of the silicone oil concentrate is produced.