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Method for overprinting color identification and make-up applied to gravure printing

A technology of chasing color and gravure printing, which is applied in the field of overprinting color chasing recognition and imposition, which can solve the problems of registration failure, increase product cost, and no pattern, etc., and achieve the effects of reducing production cost, saving consumption, and wide practicability

Inactive Publication Date: 2009-12-09
广东万昌印刷包装股份有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] During the above-mentioned color tracking and registration process, it is necessary to ensure that there are no patterns before and after the registration color marks on the printed materials, otherwise the system will not be able to judge which patterns are valid color marks, and the registration will fail. Therefore, the registration The color code cannot be randomly placed in the blank space of the pattern
[0005] The current common practice is: when imposing, leave a raw material position with a width of about 20mm on the plate roller for setting the color mark, that is, there is a "color mark belt" specially used for setting the color mark along the length of the raw material. ", this part of the "color mark tape" will be discarded after the gravure printing is completed, forming a "waste tape". In this way, the accumulation of waste tape will inevitably cause serious waste, thereby increasing the product cost

Method used

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  • Method for overprinting color identification and make-up applied to gravure printing
  • Method for overprinting color identification and make-up applied to gravure printing
  • Method for overprinting color identification and make-up applied to gravure printing

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Experimental program
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Effect test

Embodiment 1

[0040] refer to image 3 If the blank position of the product is enough to place an independent color mark, the same direction is used for imposition, and the combination is made according to the shape of the pattern to ensure that there is enough space between the layouts of the same radial direction to accommodate the color mark; set the standard color in the blank space Standard color mark, tracking color mark and guide color mark, among them, the standard color mark, tracking color mark and guide color mark have the same width, all set according to the corresponding standard, in order to meet the standard suitable for photoelectric eye recognition, secondly, the standard color mark is in accordance with the original standard After setting, set the tracking color mark about 20mm in front of the standard color mark, which is used for the activation of the photoelectric eye. It is desirable to have a length that is easy for human eyes to observe, such as 30mm, and it can be m...

Embodiment 2

[0042] refer to Figure 4 , if the color mark is not enough between the layout and the layout when using a single direction imposition, use the opposite direction imposition of the opposite direction between the pattern and the pattern. For example, the waist-shaped product shown in the figure has a concave arc at the bottom, so the two arcs are aligned head-to-head, and a blank area for the color code can be formed, so that the corresponding color code can be set. Moreover, if the blank area If the position is not enough to set the guide color mark, the guide color mark can be omitted. In this way, when registering the process steps of color tracking, the operator needs to adjust the color mark to the corresponding position of the photoelectric eye. Generally, the front of the tracking color mark can be adjusted to the corresponding position of the photoelectric eye. After starting the registration system, the photoelectric The eye can immediately scan to the tracking color ...

Embodiment 3

[0044] For products with different patterns, imposition can be carried out according to the actual situation to meet the requirements of color code setting, for example Figure 5 As shown, a triangular-like product can be transposed and face-to-face imposition in a rectangle, so that there is enough space between each rectangle to set the color mark.

[0045] In addition, according to products with different patterns, it is also possible to flexibly carry out imposition in different ways to meet the needs.

[0046] Please refer to Image 6 , is the contrast between the original imposition and color code setting method and the imposition and color code setting method of the present invention: in the original imposition method, a blank of about 20mm width must be left at the appropriate position of the raw material, which is generally arranged in the middle of the material , to set the color code, after the production is completed, this part of the blank tape will be discarded ...

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Abstract

The invention discloses a method for overprinting colour identification and make-up applied to gravure printing, comprising the following steps: make-up, colour code set, and registration colour; when gravure printing products are in punching, blank waste material with a certain area is left between patterns, in the invention colour code is set on the blank material to blank material to register colour, thereby achieving the purpose of printing and tracing registration, saving the around 20mm of waste material band which must be left in current gravure printing process, and ensuring no influence on the efficiency of the follow-up production, thus greatly saving the consumption of raw material and lowering production cost, therefore, the invention has broad practicability.

Description

technical field [0001] The invention relates to the field of gravure printing, in particular to an overprint color tracking recognition and imposition method applied in gravure printing. Background technique [0002] That is, gravure printing is widely used in the printing of packaging paper, cartons and other paper products. In gravure printing, first scrape off the excess ink on the printing plate, and then apply appropriate pressure to the printed matter between the printing plates through the embossing rubber roller, and squeeze the ink from the concave surface to the printed matter. To achieve the purpose of printing. At present, domestic gravure printing has been fully popularized as an automated method. Among them, the printing registration process of gravure printing has always been the focus and difficulty of gravure printing research. [0003] The existing gravure printing registration process is generally divided into two types, namely the general color standard...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41F13/12
Inventor 梁景亮蔡益
Owner 广东万昌印刷包装股份有限公司
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