Device for coating printed sheets, printing machine and method for coating printed sheets
A technology for coating devices and printing machines, applied to general parts of printing machinery, devices for coating liquid on surfaces, printing machines, etc.
Inactive Publication Date: 2020-12-25
KOENIG & BAUER AG
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Problems solved by technology
[0014] The advantages achievable with the invention are, inter alia, that alternate coating patterns can be realized for very small print runs without a great deal of time or material expenditure
Method used
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[0036] figure 1 The example shows a single- or multiple-printed printed sheet 01 on a single- or multiple-printed printing material 02, that is, a proof 01 of a printed product on a printing material 02, just as its printed products are used in the printing industry. as an end product or in particular as an intermediate product prior to further processing or final processing. In this case, one or more such printed sheets 01 can be arranged on a printing material 02 present as a single sheet, or, as is the case here, a plurality of printed sheets 01 can be arranged one behind the other and optionally also next to each other. On the web-shaped printing material 02 , for example on the printing material web 02 . A series of printed sheets 01 can in principle all be identical or differ at least partially in terms of shape and / or printed image.
[0037] Especially in combination with forme-less or forme-less printing methods, it may be necessary to apply the coating medium in add...
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A device coats one or more panels, printed by a coating means, which applies particularly a varnish or a primer. The device utilizes a forme roller which can be brought into rolling contact with the print stock to be coated, in the region of a contact zone, in order to coat the print stock on a side of the print stock facing the forme roller, and also utilizes a feed device supplying the forme roller with coating medium, which interacts, in the region of at least one contact zone on the circumference of the forme roller, with the forme roller, in order to continuously apply the coating medium, which is to be applied to the print stock, to a shell surface of the forme roller to an application width. A removal device, having removal elements, is associated with the forme roller and by the use of which removal device, the coating medium previously applied continuously to the shell surface, over the application width via the feed device, can be removed from the shell surface, before a downstream delivery to the print stock, which removal is, in one or in a plurality of partial width sections, relative to the application width, synchronized to one of a machine and a print stock phase position for one of defined and definable phase lengths. A method for coating and a printing press having a coating device are also disclosed.
Description
technical field [0001] The invention relates to a device for coating printed sheets, a printing press and a method for coating printed sheets. Background technique [0002] For various uses in industry, it is common and advantageous for printed sheets to be coated after printing, for example with varnish or other types of protective coating. In some applications it is desirable that the printed sheet is not coated over its entire surface, but only on a part of the surface, for example a so-called spot varnish. On the one hand, this can be used to add value to the product by achieving special optical effects, or to satisfy special requirements in the later further processing of the printed sheet. [0003] Likewise, for industrial use in the printing industry, especially when plateless printing methods such as ink-jet methods are applied, it is common and advantageous to apply or coat the printing substrate prior to printing by applying or coating so-called , especially a pr...
Claims
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IPC IPC(8): B41F23/08B41F31/02
CPCB41F23/08B41F31/027B41F31/18B41F31/20B05C1/0813B41F31/04B41F31/06B41P2200/12
Inventor 克里斯蒂安·阿诺德贝尔恩德·马祖赫沃尔夫冈·雷德尔
Owner KOENIG & BAUER AG