Four-color wide-color-gamut offset printing method

A technology of offset printing and wide color gamut, applied in printing, printing devices, etc., can solve the problems of loss of pigment, production efficiency decline, production cost increase, etc., achieve large color gamut of color reproduction, improve work efficiency, and have good restoration effect Effect

Active Publication Date: 2009-12-30
ARTRON ART GRP CO LTD
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  • Summary
  • Abstract
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AI Technical Summary

Problems solved by technology

If multiple printing methods are used, the four-color printing must be completed first, and then the second printing is completed to complete the printing of the remaining colors. In this way, the multi-color printing will increase the production cost and decrease the production efficiency. This printing method runs counter to the production mode of reducing production costs and improving production efficiency
[0004] The tradi

Method used

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  • Four-color wide-color-gamut offset printing method

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Embodiment 1

[0025] combine figure 1 As shown, the process flow of Embodiment 1 of the present invention includes converting the source picture file in RGB format into a picture file in CMYK format.

[0026] To convert RGB format pictures into CMYK format pictures, several links need to be set in advance, so that the entire printing process can be carried out in the best printing environment.

[0027] Step 1, Selection of RGB source files:

[0028] If you want to achieve a wide color gamut printing effect, it is necessary to select a picture with a large color gamut. If the color gamut of the RGB picture is too small, it is not necessary to use this technology. The technical solution is implemented by using Photoshop software to predict the color gamut of the picture, determine the size of the color gamut of the picture, and select an RGB picture with a sufficiently large color gamut.

[0029] In the process of using Photoshop software to predict the color gamut of the picture, ICC of th...

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Abstract

The invention belongs to the technical field of printing and relates to a four-color wide-color-gamut offset printing method. The method converts the RGB format of a picture to CMYK format through the following steps: anticipating the color gamut of the picture and determining the color gamut size of the picture; setting display parameters of a display and establishing a display property file of the display; determining a printing ICC curve as the standard ICC of picture conversion. Meanwhile, the invention substitutes pink ink for magenta ink so as to enlarge the color generation range of four-color ink as well as the color gamut of ink. According to the printing method, a printing product with wider color gamut can be manufactured and the working efficiency of four-color printing process is improved, thus satisfying the increasing customer requirement.

Description

technical field [0001] The invention belongs to the technical field of printing, and in particular relates to a four-color wide-color gamut offset printing method. Background technique [0002] At present, in offset printing technology, four-color printing is a conventional printing technology, and four-color printing is CMYK (CMY is the initial letter of the names of three printing inks: cyan Cyan, pink Magenta, yellow Yellow, K is the last one of black Black Letters) in four-color printing. Due to the limitation of the color gamut of the four-color ink, the information of the original work that can be restored by the four-color printed matter is very limited, and the purpose of maximizing the reproduction of the color of the original manuscript cannot be achieved. [0003] In order to better reproduce the color information of the original manuscript, six-color and seven-color printing methods were subsequently adopted, and the purpose of expanding the reproduction color g...

Claims

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Application Information

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IPC IPC(8): B41M1/12
Inventor 万捷葛侬
Owner ARTRON ART GRP CO LTD
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