Discussion on the importance of Cigarette Paper Packaging Box printing quality process control for printing

Discussion on the importance of Cigarette Paper Packaging Box printing quality process control for printing

The ultimate purpose of printing quality process control is to improve product quality and ensure the continuous stability of product quality. For printing enterprises, to improve the stability of products not only needs the corresponding quality control measures and corresponding management system, but also needs the technology, means and related equipment of process control.

With the development of multi-color printing and its more and more high degree of automation, printing speed and quality greatly improved, the quality of the print process control management of printing technology, printing materials used correctly, to reduce the material cost and improve the artificial unit time efficiently, thus improve the quality of the printing quality, to reduce the waste and improve the production yield. After

At present, the digital process control can be realized in the pre-press link, and the production quality control can be realized basically through the inspection machine after the press. However, the most important printing link can only be realized through the CP window and the operation key to realize the ink volume control and alignment mediation.

Most printing enterprise in the printing process on the quality of printing quality control by artificial sampling and detection by the human eye detection, and the human eye can be found in the smallest defects need to have at least 20 gray level difference, and the size is not less than 0.3 mm, but it is hard to maintain sustained and stable, and easy to produce fatigue, especially in night shift, are more likely to appear more amount of printing quality problems.

The so-called printing quality process control system refers to the use of cameras in the printing process instead of human eyes, control system instead of human brain. It works by means of an image acquisition unit (e.g. CCD camera), through the study of the image acquisition of qualified products, first remove the influence of random factors, print the standard image as a template, and then in the printing process in real time to collect in Indian print each frame inspected images were collected and transmitted to the control system compared with the standard image analysis, If the difference is found and exceeds the set tolerance range, it will be judged as unqualified products. Finally, by adjusting the corresponding printing parts or auxiliary materials to repair the related quality problems, effectively reduce or prevent the batch of failures, causing unnecessary waste.

Advantages of printing quality process control

Printing quality process control is a kind of automatic detection method which is suitable for high speed multi-color printing by combining image processing technology and printing principle.

Its advantages are mainly reflected in the following aspects:

1. Able to detect subtle defects. Including small words, lamo, flying ink, color difference, leakage, dirty spots, overprint deviation, etc.

2, will not damage the printed matter. Online detection using camera as sensor; Will not come into contact with the printed matter, so will not damage the surface quality of the printed matter.

3. Improve production efficiency. Online detection can be continuously detected for a long time, and will not cause false detection due to fatigue. At the same time, when quality defects occur, the operator can solve the problems in the work in time according to the real-time report in the field to reduce the rejection rate. The manager can also track the production process according to the analysis report of the test results to improve the management efficiency.

4, the application of online detection system, but also can reduce the labor intensity of workers, improve working conditions and so on.

Enterprises have a good long-term and sustainable development, must have a reasonable, perfect quality management system. The on-line control of printing quality is very important for printing process management, monitoring measures and timely finding and solving problems, so as to effectively improve printing quality. Because the printing quality process control greatly reduces the human factors of printing quality control, greatly improves the production efficiency, and reduces the requirements of the operator's skills, its application provides the feasibility for the end of the automation and intelligence of printing machinery in the real sense.