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Method of overprinting color mark on gravure printing machine

Active Publication Date: 2020-08-14
LANGFANG BEIFANG JIAKE PRINTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, using this color registration method must leave a 5mm-8mm paper white edge in the printing material for printing registration color marks. For gravure printing with a huge printing volume, the resulting paper waste is very large

Method used

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  • Method of overprinting color mark on gravure printing machine
  • Method of overprinting color mark on gravure printing machine
  • Method of overprinting color mark on gravure printing machine

Examples

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Embodiment Construction

[0028] The method for overprinting a color mark with a gravure printing machine of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0029] The invention discloses a method for overprinting a color mark on a gravure printing machine, the specific steps of which are as follows:

[0030] (1) The selected product, the product in this example is a small box of eighteen packs of cigarettes, and the number of printing colors is ten colors (specifically as figure 1 As shown), the imposition plate of this product has a blank space on the paper with the same number of printing colors as the printed color of the product;

[0031] (2) Make the original manuscript in the computer, add all the above color codes to the blank space of the paper in the imposition core of the product, such as figure 1 Between the right edges of the two rows of cigarette packs in the box, five groups of small gray right-angled trapezoids in pairs are the c...

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PUM

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Abstract

The invention discloses a color code overprinting method of a photogravure press. The method sequentially comprises the following steps that a product is selected; an original pattern is manufactured in a computer, and all color codes are added to a paper blank position of a makeup type area of the product; the color codes of all colors are manufactured on printing rollers; the codes are input to an engraving machine; a drying system is started; the printing rollers are mounted on printing units of the press; adjusted printing ink is added into ink grooves of the all printing units; printing materials are conveyed to a paper collecting unit; printing equipment of the printing units is adjusted; various parameters needed in the printing process are input on a display screen of the press; the ink grooves rise, and a doctor holder is adjusted and then is in tight contact with the printing rollers; the printing rollers are pressed down; and photoelectric tracking identification electric eyes in all color sets are aligned at the color codes, and automatic color registering tracking is achieved. According to the color code overprinting method of the photogravure press, in the process of printing with the giant printing volume, a large amount of paper is saved.

Description

technical field [0001] The invention relates to a method for overprinting a color mark, in particular to a method for overprinting a color mark with a gravure printing machine that can save paper. Background technique [0002] At present, the more advanced automatic color registration systems all use computer-controlled automatic color registration devices, which are characterized by high-speed and accurate sampling and calculation, and timely correction once every time the printing plate roller rotates, which can fully adapt to color registration deviations. change quickly. Therefore, high-speed and accurate color registration can be ensured, and the accumulation of color registration deviation can be completely eliminated. In order to detect and calibrate the color registration deviation, the color mark is usually printed on a certain position in the blank space of the printed material outside the pattern while printing the pattern, and the color registration deviation is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41M1/10
Inventor 臧庆碧王晓波邱良
Owner LANGFANG BEIFANG JIAKE PRINTING
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