Machine and method for printing material webs
AssigneeWindmoeller & Hoelscher KG
InventorBjoern Weidmann
Life of this patent
Estimating the term…
Abstract
The invention describes a machine for printing material webs (4), which comprised a station (1, 11, 41) for monitoring the printed material web (4), with the station (1, 11, 41) for monitoring the material web (4) comprising a sensor for monitoring the material web (4) and at least one counter support (2, 12) for guiding the web (4), with at least one counter support (2, 12) being located on the side of the web facing away from the sensor (3, 13), and with the surface of the counter support facing the material web at least partially being made from a porous or perforated material. It is characterized in a surface of the counter support facing the material web (4), showing a reflector (34) and/or a background illumination (39).
Claims10
A machine for printing material webs (4),
- which comprises a station (1, 11, 41) for monitoring the printed material web (4),
- with the station (1, 11, 41) for monitoring the material web (4) comprising a sensor for
- monitoring the material web (4) and at least one counter support (2, 12) for guiding the web (4), with at least one counter support (2, 12) being located on the side of the web facing away from the sensor (3, 13),
- and with the surface of the counter support facing the material web at least partially being made from a porous or perforated material,
- characterized in that
- the surface of the counter support facing the material web (4) comprises a reflector (34) and/or a background illumination (39).
A method for printing material webs (4),
- in which the material web (4) is guided through a station (1, 11, 41) for monitoring the printed material web (4),
- in which (1, 11, 41) the material web (4) is monitored via a sensor for monitoring the material web (4), while the material web (4) is guided by at least one counter support (2, 12) for guiding the web (4), with at least one counter support being located at the side of the material web (4) facing away from the sensor (3, 13),
- and with the surface of the counter support (2, 12) facing the material web (4) being made at least partially from a porous or perforated material, with a fluid flowing through it,
- characterized in that
- the material web (4) is guided past an optic element (34, 39), such as a reflector and/or a background illumination, while the sensor (3, 13) monitors the material web (4).
Dependencies are inferred from the claim text.