In the printing process, whether the plate is warped determines the production efficiency. If the plate warps, it will not only affect the production efficiency, but also cause great production loss. So how to solve the problem of printing warpage?
Looseness of the plate locking device on the cylinder will lead to warpage of the printing plate. The plate locking device is loose. When the printing plate is installed and printed, the printing plate is tensioned, and the printing plate starts to heat after long-time use. Once heated too much, the viscosity will be reduced, which will lead to the falling off of the printing plate and the warping of the printing plate to a certain extent. Therefore, the locking device must be checked regularly without loosening. Once loose, it will affect the printing quality, and there will be ghosting, deinking, dot blocking and other phenomena.
The printing plate will tilt up, mostly because the double-sided tape is not sticky. The double-sided adhesive tape is divided into white and yellow. The yellow tape is easy to tear and paste incorrectly, which is easy to change the position, but the viscosity is poor. Therefore, when making flexographic printing plate, white tape is better than yellow tape. When pasting the printing plate with white tape, be sure to measure the distance, and then adopt a certain production standard to paste the plate well without edge warping.
Improper storage after printing will also lead to plate warpage. Many printers store curled plates, which creates tension at the edges of the plate and base. In the production process or when disassembling the printing plate, there will be the phenomenon of yellow camphor. Water is on the edge of the printing plate. As long as water is curled and stored, it is easy to penetrate into the printing plate, resulting in non stick tape and warpage. Therefore, after the first printing, the printing plate should be locked and sealed to avoid warpage.
Shandong printing and packaging manufacturers concluded that improper use of materials, improper operation of personnel, equipment reasons, etc. will cause printing warpage. What we need to do is to control the factors affecting printing warpage and improve production efficiency. For more relevant content, please come to the website for consultation!济南印刷厂讲解的内容 更多的内容 请咨询公司官网http://www.xinfengyinshua.cn/