Label quality testing (two) new development
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Since printing accuracy is a necessary condition in the printing process, the company strives to improve the testing instruments. Ernest pointed out that the test instrument should be improved from three places. “In the range of web viewing products, new digital cameras replace the old analog camera technology. Higher picture accuracy guarantees better image quality and color fidelity. New three-core color single line on 100% inspection system Scanning the camera will better detect color deviations and minor typographical errors. Test instruments should be added as early as possible in the production process to reduce the likelihood of producing or shipping defective products while maximizing potential profits.
Thome agrees that digital technology can provide better detection capabilities than analog technology. He also mentioned that BST Pro Mark has begun to link the vision system to the 100% inspection system. “Beyond that, we did a complete workflow system. On the press, we placed a system to identify the flaws. During the winding process of the winder, we placed a reading device to read the edge of the web. Mark," he explained.
Shumaker described a similar system on the workflow link, a new product "If you have a detection system on your press, this will allow you to identify the information on the press and transfer it to the winder, winder Will automatically stop on the ,, so these 瑕疵 are cut off. This is a relatively new technology, is becoming more and more popular. The idea is that you will get all the information, the information will be stored, you can actually see the information, and Make a decision in advance. Only if everyone thinks that cockroaches are harmful, it will stop on the rewinder and be cleared.
Another development that has caught the attention of printers is PDF testing. Shumaker explained, “You can take a PDF of the customer's printed matter and compare the PDF to the product being tested on the roll.” This is very helpful, not only for images, but also for text. For example, Shumaker said that PDF detection is useful in example applications such as different languages and small fonts.
Spendlow said that "in recent years, PC-based electronic printing interface testing has been greatly developed. This system can be seen in almost all horizontal label types, from medical labels to monochrome barcode labels. A large number of flaws and optional equipment such as flag detection, strip detection, missing label detection, strobe lights and barcode scanners.
Lederle, a manufacturer of desktop rewinding and inspection equipment, said, "Lederle offers a rewinding station with PLC (program logic controller) and VFD orientation. In addition, Lederle also uses the operator interface control panel to read what you want to read. Any text and language. Most of the machines we sell to Latin America and Mexico can read Spanish. Today's electronic technology offers more possibilities for adding bar code reading software, camera systems and missing tag detection."
According to Doerr, “In order to have the ability to detect wider widths and/or on faster product lines (printer speeds), true 100% inspection technology has evolved. Until recently, 100% inspection systems were There are still some restrictions at the widest width and higher speeds," he continued. "Because in most technical conditions, cameras based on web-based inspection systems are becoming increasingly feature-rich while prices are not rising." He will be home and office. The cost of the computer has not increased and the number of features has increased.