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Method and device for ink-jet printing on curved container surfaces

An inkjet printing, container technology, used in printing, power transmission devices, transfer materials, etc.

Active Publication Date: 2013-06-12
KRONES AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the problem remains unsolved when printing on uneven container contours and when using print heads with several successively arranged nozzle rows

Method used

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  • Method and device for ink-jet printing on curved container surfaces
  • Method and device for ink-jet printing on curved container surfaces
  • Method and device for ink-jet printing on curved container surfaces

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Embodiment Construction

[0037] next reference figure 1 with 2 A preferred embodiment of the method according to the invention for inkjet printing on containers 1 , such as beverage bottles, is described. However, this method is also generally suitable for printing other objects with curved surfaces. Surfaces of this type 2 in figure 1 Schematically indicated in is a section of the side wall of the container 1 . The surface 2 is positioned rotatably about the main axis 1' of the container 1 in front of the printing head 3 of the row 4 of nozzles. In this case, the printing press with the corresponding nozzle row 4 and the positioning unit for carrying out the printing movement between the printing head 3 and the surface 2 to be printed can be arranged in a known manner. According to the invention, these positioning units are combined with a control unit (not shown) and / or an evaluation unit in order to carry out the printing timing of the nozzle row 4 and / or the nozzles 4a arranged thereon in...

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PUM

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Abstract

The invention provides a method and a device for ink-jet printing on curved container surfaces. The method involves moving a curved surface for printing relative to at least one row of nozzles which is aligned transversely to movement direction. Ink drops are discharged at the ejection timing which is adjusted according to respective printing gaps of ejection nozzles with respect to each drop, so that printed pattern twisting caused by different printing distances can be compensated and outline printing can be improved.

Description

technical field [0001] The present invention relates to a method and a device for inkjet printing on curved surfaces of containers, in particular PET or glass bottles. Background technique [0002] Inkjet printing on containers such as beverage bottles and the like is advantageous due to the freedom of design and the rapid adaptability to different products when converting complex printing artwork. However, due to the mostly curved container surfaces and in the case of the use of line printing heads (which are common on beverage filling lines due to the high throughput required), the resulting printed patterns appear differently with respect to the respective template. Desired deviations, especially inaccurate printing, can lead to unclear contours in the printed pattern. [0003] As known from EP1435296A1, EP0385624A1 and WO03002349, attempts have been made to improve the quality of inkjet printing on curved container surfaces by precise guidance of the printing head and t...

Claims

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Application Information

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IPC IPC(8): B41J3/407B41J2/04B41J25/304B41J2/14
CPCB41J2/04573B41J3/4073B41J3/40733
Inventor 安德烈亚斯·克劳斯安德烈亚斯·松瑙尔马丁·卡默尔
Owner KRONES AG
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