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Unbalanced sizing of printing paper / poor paper surface smoothness / insufficiently firm backing of printing plate, etc.

 Last Update: 2022-05-08
 Source: Internet
 Author: User

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First, the sizing of the printing paper is not balanced, and the poor smoothness of the paper surface causes the ink layer to bloom

Practice shows that rough paper will absorb more ink

The second is that the backing of the printing plate is not strong enough and the printing pressure is weak, which leads to the flooding of the ink layer on the printing plate

As far as the printing process of letterpress printing plates is concerned, what kind of backing plate is used has a great influence on the transfer of the ink layer

The third is that the rubber roller is too hard or the position of the ink roller is poorly adjusted, and the ink layer on the layout is smeared due to uneven ink distribution

Color printing is usually a multi-color overprint product with a large layout and a large amount of ink absorption

Fourth, the anti-sticking agent in the ink is not evenly stirred, resulting in weak ink affinity on the layout, and poor ink transmission, resulting in smearing of the ink layer on the layout

For printing plate products, adding a release agent to the ink can have a certain release effect

To sum up, as long as you are good at summarizing experience in process practice and accurately understand the various causes of smearing of the product ink layer, the blindness of process operation can be better avoided, thereby ensuring the improvement of printing efficiency and product quality
.

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