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Method and apparatus for determining a curing level of printing inks and print process control strip

A technology for printing inks and printing devices, which can be used in color measurement devices, scattering characteristics measurement, color/spectral characteristics measurement, etc., and can solve the problem of not allowing identification of dryness.

Active Publication Date: 2012-07-25
HEIDELBERGER DRUCKMASHINEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The methods and devices known from the prior art generally do not allow a definite determination of the degree of dryness in each case for all combinations of printing inks produced superimposed in the printed image such that complete drying of all printing inks printed on the printing material can be inferred.

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  • Method and apparatus for determining a curing level of printing inks and print process control strip
  • Method and apparatus for determining a curing level of printing inks and print process control strip
  • Method and apparatus for determining a curing level of printing inks and print process control strip

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Embodiment Construction

[0030] exist figure 1 A printed sheet 1 is shown. The sheet 1 is firstly provided with a printing image (which is not shown further here) and additionally with a printing process check strip 2 . The printing process inspection strip 2 can have different measuring fields, which ensure the printing inspection and the printing process itself. Among the application possibilities of the printing process check strip is, for example, the determination of an increase in the tone value. In this case, the printing process inspection strip can have a hardness inspection zone 3 according to the invention. Such a hardening check zone 3 can also be provided as an additional, independent hardening check zone 3 ′, which can be arranged on the printed sheet 1 not far from the check strip 2 in a further printing process. The single, additional hardness check zone 3 ′ can then itself be regarded as a special case of a printing process check strip 2 .

[0031] figure 2 A single color separa...

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PUM

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Abstract

A method, apparatus and print process control strip determine a curing level of printing inks on printing material. Conventional measuring areas of a print process control strip are always formed by tonal value combinations of individual, reliably thoroughly dried, printing inks, in particular when using intermediate dryers. Measuring the measuring areas furnishes no more accurate information with regard to the curing level of ink combinations in the actual printed image which differ from the combinations of the measuring areas of the print process control strip. A level-of-curing control area is provided, which is formed by overprinting preferably at least four printing inks, in each case in full tone, to obtain statements relating to the curing level of the printing inks with the print process control strip. Measuring the level-of-curing control area provides information about the curing level of all printing ink combinations in the printed image.

Description

technical field [0001] The present invention relates to a method and a device for determining the degree of hardening of printing inks and / or varnishes on a printing material. In this case, color separations for at least four printing inks and / or varnishes are first generated from the printed original, and the corresponding printing inks or varnishes are placed in the printing unit and / or varnish unit in accordance with the provided color separations Transferred to the substrate. For this purpose, in particular a printing press is provided with a corresponding printing unit and / or varnish unit for printing the printing material with at least four printing inks or varnishes. In addition to the desired printed image, the color separation has at least one inspection zone and the degree of hardening of the printing ink at at least one location in the printed image is determined by means of a measuring device. Background technique [0002] Drying or hardening of the printed pri...

Claims

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Application Information

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IPC IPC(8): G01N21/25G01J3/46
CPCG01N21/55G01J3/46G01N21/35G01N33/32
Inventor M·希恩宁M·科尔曼
Owner HEIDELBERGER DRUCKMASHINEN AG
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