Device and method for applying a medium to a substrate, system having a plurality of such devices, and use of such device, method and system
AssigneeStork Textile Printing Group B.V.
InventorsLothar Wefers, Josef Juffinger
Life of this patent
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Abstract
The invention relates to a device and to a method for applying a medium in the form of liquid, powder or paste to a substrate, having a container for the medium and a transport device which takes the medium from the container and discretely distributes it. In a propelling device the medium is selectively transferred from the transport device to the substrate with a propellant which is separate from the medium, or in the propelling device the medium is selectively removed from the transport device, and the remaining medium is transferred from the transport device to the substrate.
Claims46
A device for applying a medium in liquid, paste or powder form to a substrate for forming a pattern on the substrate, the device comprising:
- a transport device for taking the medium and feeding the medium in a distributed way to a delivery zone;
- and
- a delivery device positioned in proximity with the delivery zone for transferring the medium from the delivery zone to the substrate,
- a propelling device with a propellant which is separate from the medium and which is positioned in proximity with the substrate for propelling the medium from the delivery zone, wherein the propelling device is adapted for propelling medium from selectable points of the delivery zone, and
- a control device in communication with the propelling device for controlling the propelling device and for selecting said points, wherein the propelling device is provided with nozzles arranged over the width of the transport device and valves respectively connected upstream of said nozzles, and wherein the propellant comprises a fluid.
A device for applying a medium in liquid, paste or powder form to a substrate for forming a pattern on the substrate, the device comprising:
- a transport device for taking the medium and feeding it in a distributed way to a delivery zone;
- and
- a delivery device positioned in proximity with the delivery zone for transferring the medium from the delivery zone to the substrate,
- a propelling device with a propellant which is separate from the medium and which is positioned in proximity with the substrate, for propelling the medium from the delivery zone,
- wherein the propelling device is adapted for propelling medium from selectable points of the delivery zone, and
- a control device in communication with the propelling device for controlling the propelling device and for selecting said points, wherein the propelling device has a gas feed shaft which runs essentially along the transport device and whose cross-sectional variation is adapted for balancing the hydrostatic pressure drop, in particular being reduced starting from the feed opening until its end.
A system for applying medium in liquid, powder or paste form to a substrate fed along a predetermined direction, comprising a plurality of devices, which are arranged one behind the other in said predetermined direction, the devices being controllable by a common central processing unit, or each device being controlled separately decentralized, each of said devices comprising:
- a device for applying a medium in liquid, paste or powder form to a substrate for forming a pattern on the substrate, said device comprising:
- a transport device for taking the medium and feeding the medium in a distributed way to a delivery zone;
- and
- a delivery device positioned in proximity with the delivery zone for transferring the medium from the delivery zone to the substrate,
- a propelling device with a propellant which is separate from the medium and which is positioned in proximity with the substrate for propelling the medium from the delivery zone,
- wherein the propelling device is adapted of r propelling medium from selectable points of the delivery zone, and
- a control device in communication with the propelling device for controlling the propelling device and for selecting said points, wherein the propelling device is provided with nozzles arranged over the width of the transport device and valves respectively connected upstream of said nozzles, and wherein the propellant comprises a fluid.
Dependencies are inferred from the claim text.