There will always be problems in the process of printing and packaging. What we need to do is to know in advance which problems should be properly prevented. Now let's talk about how to solve the sticky problem in Jinan printing and packaging.
Relationship between ink layer thickness and paper printability
If the paper with fast ink absorption, large ink absorption and poor smoothness is processed, it is easy to expose the bottom and send out flowers after printing if insufficient pressure or uneven pressure is not given. Once you increase the amount of ink, the ink layer will be thicker, and it will be dirty. Xiao Bian tells you that this is a very important reason for sticky dirt.
Therefore, when solving the problem, we should consider from the perspective of anti sticking and dirt. The printing of large areas of plates should adopt "deep ink thin printing", that is, adjust the color hue of the ink a little deeper, and the ink layer should be correspondingly thin. In this way, you can get both at one stroke, which will neither affect the hue nor stick dirt.
Correct understanding of the relationship between printing pressure and ink layer thickness
Proper printing pressure is an important condition to realize the uniform transfer of ink layer in the layout. Insufficient or uneven printing pressure will affect the uniform transfer of ink layer. In printing, when the layout pressure is insufficient or uneven, the ink color of the printed matter will be blurred, and the thickness of the ink color of the entire layout is also inconsistent.
Increasing the amount of ink can indeed make up for the defects caused by poor contact between the ink layer of the layout and the substrate due to insufficient printing pressure, but it is also easy to cause the printing to stick dirty. Therefore, the printing pressure should be adjusted first, and then the ink input of the layout should be adjusted, so as to obtain a good printing effect.
Avoid dirt on the back caused by improper printing ink layer thickness
Accurately judge whether the thickness of the ink layer is appropriate, whether the pressure is even, whether the layout is evenly inked without exposing the bottom and false printing, and whether the color of the printed matter is consistent with the sample.
If the printing pressure is uneven or insufficient, the gloss of the printing paper is poor, the original color of the printed matter is deep, and the ink color is dim, it is easy to lead to inaccurate determination of the thickness of the printing ink layer. At this time, if you increase the amount of ink blindly, it will cause the back of the printed matter to be dirty due to the thick ink layer.
Plate quality, printing ink layer thickness and printing pressure have a certain relationship. The poor smoothness of the layout results in a large ink layer and pressure required for printing; On the contrary, it is small. In this respect, we should also learn more. Please come to our website for details https://www.fumeijia.net Consult!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/