Method and device for decorating an uneven surface of a dimensionally stable object
First Claim
1. A method of decorating an uneven surface of an object which is dimensionally stable by a printing operation, wherein the object to be decorated and a digitally and contactlessly operating printing head are moved relative to each other during the printing operation and the printing head is actuated by a control device for dispensing ink, comprising the steps:
- creating a control program for controlling the printing head in dependence on the height profile of the uneven surface to be decorated of the object;
detecting the relative position of the surface to be decorated of the object relative to the printing head;
actuating the digital printing head with the created control program; and
wherein prior to the decoration operation a desired ink layer thickness is established in dependence on the location of the uneven surface to be decorated of the object and the control program is created in dependence on the predetermined height profile of the surface to be decorated and the desired ink layer thickness, wherein the digital printing head is controlled with the created control program in response to the topography of the uneven surface to be decorated to produce the predetermined desired ink layer thickness in dependence on the location on the surface to be decorated of the object.
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Accused Products
Abstract
A method for decorating an uneven surface of a dimensionally stable object is disclosed. According to the method, the object to be decorated and a digital, contactless printing head are moved in relation to one another during the printing operation and the printing head is controlled by a control unit in order to dispense ink. The method according to the invention comprises the following steps: a control program is created to control the printing head in accordance with the height profile of the uneven surface to be decorated of the object; the position of the surface to be decorated is detected in relation to the printing head; and the digital printing head is controlled using the program that has been created. The invention also relates to a device for carrying out the method.
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Citations
21 Claims
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1. A method of decorating an uneven surface of an object which is dimensionally stable by a printing operation, wherein the object to be decorated and a digitally and contactlessly operating printing head are moved relative to each other during the printing operation and the printing head is actuated by a control device for dispensing ink, comprising the steps:
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creating a control program for controlling the printing head in dependence on the height profile of the uneven surface to be decorated of the object; detecting the relative position of the surface to be decorated of the object relative to the printing head; actuating the digital printing head with the created control program; and wherein prior to the decoration operation a desired ink layer thickness is established in dependence on the location of the uneven surface to be decorated of the object and the control program is created in dependence on the predetermined height profile of the surface to be decorated and the desired ink layer thickness, wherein the digital printing head is controlled with the created control program in response to the topography of the uneven surface to be decorated to produce the predetermined desired ink layer thickness in dependence on the location on the surface to be decorated of the object. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. Apparatus for decorating an uneven surface of a beverage container, comprising:
- a digital, contactlessly operating printing head controlled by a control device for dispensing ink on to the surface and a device for creating a control program for controlling the printing head in dependence on the height profile of the uneven surface to be decorated,
wherein prior to the decoration operation a desired ink layer thickness is established in dependence on the location on the uneven surface of the beverage container and the control program is created in dependence on the predetermined height profile of the surface and the desired ink layer thickness, wherein the digital printing head is controlled with the created control program in response to the topography of the uneven surface to be decorated to produce the predetermined desired ink layer thickness in dependence on the location on the surface to be decorated of the object. - View Dependent Claims (19, 20, 21)
- a digital, contactlessly operating printing head controlled by a control device for dispensing ink on to the surface and a device for creating a control program for controlling the printing head in dependence on the height profile of the uneven surface to be decorated,
Specification