Handling methods and preventive measures for inaccurate printing and misalignment!

During the printing process, inaccurate overprinting and misalignment are two common issues that directly affect the appearance quality of the product and customer satisfaction. To solve these problems, we need to take a series of measures and improve preventive measures.

When there are problems with inaccurate printing and misalignment, the first thing we need to do is to immediately stop the machine for inspection and identify the specific cause of the problem. Next, we need to adjust the pressure of the printing machine to ensure that the pressure of each color group is uniform. In addition, we also need to check and correct the position of the printed version, and if necessary, reinstall the version. At the same time, we also need to clean the printing drum and paper guide roller to remove ink accumulation on them. Finally, we also need to check the viscosity of the ink, and if necessary, add diluent for adjustment.

Next, let‘s explore measures to improve prevention.

1. Equipment maintenance

We need to regularly maintain the printing machine, with a focus on checking the register system, correcting the parallelism of the various color group rollers and paper rollers, inspecting and replacing worn gears and bearings, and keeping the paper guide system clean.

2. Process control

We need to strictly control the temperature and humidity in the workshop (recommended 22 ± 2 ℃, RH60 ± 5%), use high-quality base paper, control the moisture content of the paper, standardize the ink blending process, maintain stable viscosity, optimize printing pressure parameters, and record standard values.

3. Operating standards

We need to strengthen the training of operators, improve their alignment adjustment skills, establish standardized installation processes, implement first article inspection systems, and conduct regular equipment inspections.

4. Quality Management

We need to establish a process inspection system, retain standard samples as a benchmark for comparison, statistically analyze the reasons for defects, and continuously improve. Finally, we also need to pay attention to some things: for paper of different weights, we need to adjust the corresponding process parameters. When changing orders, we need to thoroughly clean the equipment to avoid the impact of ink residue. After a long-term shutdown, we need to recheck the equipment. We need a dedicated person to provide guidance for new employees on how to follow up on operations, such as whether the centerline is vertically aligned during the installation of printing plates.

Through the systematic implementation of the above measures, we can effectively reduce the problems of inaccurate overprinting and misalignment, and improve the quality and production efficiency of carton printing. The key is to establish a prevention oriented concept and move quality control forward, rather than remedying afterwards.

Shenzhen Gold Sun Color Printing Factory is a China based book manufacturer, very good at printing hardcover book, photo book, story book, photo album, Printing paper, coloring book, packaging & printing services,  Labels, printing stickers, anti-water labels, vinyl label, custom label book , softcover book, custom book printing hardcover, mini book, photobook printing, hardcover book, , board books, color sticker books, sticker books, packaging boxes for small business, custom book, children board books, kids book, journals, notebooks, Agenda, Customs Calendar, magazines, color books, cookbooks, etc. With ISO-2001 and CE certificate, Gold Sun offers very good price and outstanding service.

Welcome contact us through admin@goldsunprinting.com or add whatsapp  +86 13802583954. Thank you.