The reasons for the printing of paper wrinkling analysis and solutionsThe reasons for the Book printing of paper wrinkling analysis and solutions
As we all know, in the magazine printing process are many factors that affect the quality, in addition to the machine itself, there are substrates, inks, as well as external factors such as air humidity, workshop temperature. However, the printing operation in the production of practical problems encountered, it is often not easy to quickly find the root causes of incidents, and effectively solve the problem. Now, we will help you on the printing process to sort out the frequently asked questions and answers.
Paper wrinkling
In the catalog printing process, the pile of paper is not flat, air-conditioning inadequate or paper edge waves and static electricity and other reasons, may easily lead to wrinkling of paper. Feeder and paper delivery settings are not set up correctly, can also cause wrinkling of paper.
Paper is very sensitive to fluctuations in the humidity, you know, humidity 50% ~ 55%, temperature 20 ℃ ~ 220 ℃ environment is best suited for transport and storage of paper, so to ensure that the paper remain flat in the printing process.
Paper wrinkling may also be set up by the machine (such as feeder settings) caused by improper, for example, the former regulatory settings are not correct, while pulling too much regulation, too much pressure cardboard presses, front hair is too strong, pressure Indian drum set properly at the top of hair, etc., will cause the paper wrinkle. In addition, the grit one's teeth, or bite the transfer of bad dirty pad printing pressure is too great, or about the causes of wrinkling the paper is uneven.
Solution:
Choose high-quality flat sheet of paper as far as possible
Before adjustment for proper inspection and regulation, while regulation
Cardboard can not be set too low pressure
Reduce the transmission cardboard edge hair
Fine-tune the transmission of paper pressure air
Pay special attention to grit one's teeth into the lateral position paper
Inspected, cleaned and properly adjusted grit one's teeth
