Flexographic printing machine high-quality printing method capable of controlling printing quality

Abstract

The invention discloses a flexographic printing machine high-quality printing method capable of controlling printing quality. The flexographic printing machine high-quality printing method comprises the following steps that 1, a dot reproduction monitoring icon and an overprinting monitoring icon are designed, and typesetting is carried out; 2, flexible printing plates of all colors are manufactured, each color of flexible printing plate comprises images and texts needing to be printed and further comprises the dot reproduction monitoring icon and the overprinting monitoring icon; 3, the flexible printing plates of all the colors are installed on plate cylinders of corresponding printing units; 4, the smoothness of the paper is detected; 5, pre-printing is carried out; and 6, after preprinting is judged to be qualified, normal printing is conducted, the printing speed is 220m/min, the interval in the printing process is 30 minutes, and the step 5 is repeated; The digital detection standard is achieved, compared with naked eye judgment of workers, the method is more accurate and reliable, the printing quality problem in the printing process can be rapidly and accurately recognized, correction is conducted in time, and printing accidents caused by the fact that printing flows into the next link are prevented.

Description

technical field [0001] The invention relates to the technical field of printing, in particular to a high-quality printing method for a flexographic printing machine capable of controlling printing quality. Background technique [0002] In recent years, the level of pre-press and printing automation of packaging and printing enterprises has been continuously improved, and a large amount of labor has been liberated. However, they still rely heavily on labor in the quality inspection process. With the improvement of packaging quality and delivery cycle requirements in the terminal market, coupled with the accelerated increase in domestic labor costs year by year, the quality inspection system has begun to be favored by packaging and printing companies. [0003] The flexographic printing process is widely used because of the advantages of health and environmental protection, high efficiency and energy saving, and low cost; flexographic printing uses an anilox roller to ink the e...

AI Technical Summary

Problems solved by technology

However, there is currently a lack of standardized printing pressure control methods in the industry, and more is based on the experience of starting up the printing machine operator. These experiences are often difficult to express and quantify, which is not conducive to technology inheritance and employee training. Different, the grasp of the scale is different, which can easily cause the difference in the quality of the final product

Patent No.: 201620891463.6, a flexographic printing machine capable of controlling printing quality, discloses a flexographic printing machine capable of controlling printing quality, including a host, unwinding and feeding part, printing part, post-processing part and The rewinding and receiving section, the unwinding and feeding section include a feeding unit and a tension control unit, and the printing section) includes several color groups, each color group is provided with a drying unit, and the flexographic printing machine also includes a quality inspection unit 1. Quality inspection unit two and receiving switching unit, quality inspection unit one is set between the printing section and the post-processing section, quality inspection unit two is set between the post-processing section and the rewinding section, the quality inspection unit 1. Quality inspection unit 2 is respectively connected to the host by communication; the rewinding section includes a rewinding reel and a waste reel, and the rewinding switching unit can transfer printed products to the rewinding reel or waste reel, The material switching unit communicates with the host, and this structure cannot realize the specific online quality inspection of flexo printing, including dot expansion and overprinting, etc.

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