Ultrasonic method for applying a coating material onto a substrate and for cleaning the coating material from the substrate
AssigneeAgfa NV
InventorThomas K. Hebert
Life of this patent
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Abstract
The present invention provides a method and apparatus for applying a coating material onto a print substrate mounted on a plate cylinder of a printing press. The method comprising: delivering a supply of the coating material to a distributive surface of an ultrasonic horn, the distributive surface controlling a flow of the coating material to an active edge of the ultrasonic horn, and atomizing the coating material at the active edge of the ultrasonic horn and directing the atomized coating material onto a surface of the print substrate. The present invention also provides a multi-purpose ultrasonic acoustic coating/cleaning system for applying a coating material onto, and cleaning the coating material from, a print substrate.
Claims34
A method for applying a coating material onto a print substrate, comprising:
- delivering a supply of the coating material, which is capable of forming a lithographic printing form upon subsequent imaging, to a distributive surface of an ultrasonic horn, the distributive surface controlling a flow of the coating material to an active edge of the ultrasonic horn;
- atomizing the coating material at the active edge of the ultrasonic horn and directing the atomized coating material onto a surface of the print substrate;
- applying the coating material in an overlapping pattern of coating lines;
- and
- controlling a thickness profile of each coating line to maintain a substantially uniform thickness of the coating material on the print substrate.
A method for applying a coating material onto a print substrate, comprising:
- delivering a supply of the coating material, which is capable of forming a lithographic printing form upon subsequent imaging, to a distributive surface of an ultrasonic horn, the distributive surface controlling a flow of the coating material to an active edge of the ultrasonic horn;
- atomizing the coating material at the active edge of the ultrasonic horn and directing the atomized coating material onto a surface of the print substrate;
- and
- applying the coating material in a helical pattern on the print substrate.
A method for applying a coating material onto a print substrate, comprising:
- positioning an ultrasonic horn substantially horizontally relative to the print substrate;
- delivering a supply of the coating material, which is capable of forming a lithographic printing form upon subsequent imaging, to a distributive surface of the ultrasonic horn, the distributive surface controlling a flow of the coating material to an active edge of the ultrasonic horn;
- and
- atomizing the coating material at the active edge of the ultrasonic horn and directing the atomized coating material onto a surface of the print substrate.
A method for applying a coating material onto a print substrate, comprising:
- positioning an ultrasonic horn along at least a partially horizontal vector, relative to the print substrate;
- delivering a supply of the coating material, which is capable of forming a lithographic printing form upon subsequent imaging, to a distributive surface of the ultrasonic horn, the distributive surface controlling a flow of the coating material to an active edge of the ultrasonic horn;
- and
- atomizing the coating material at the active edge of the ultrasonic horn and directing the atomized coating material onto a surface of the print substrate.
A method for applying a coating material onto a print substrate, comprising:
- delivering a supply of the coating material, which is capable of forming a lithographic printing form upon subsequent imaging, to a distributive surface of an ultrasonic horn via a capillary tube, the distributive surface controlling a flow of the coating material to an active edge of the ultrasonic horn;
- and
- atomizing the coating material at the active edge of the ultrasonic horn and directing the atomized coating material onto a surface of the print substrate.
Dependencies are inferred from the claim text.