The impact of different surface tension PET silver paper on printing?

The impact of PET silver paper with different surface tension on printing is mainly reflected in the following aspects:

1. Ink adhesion

High surface tension: When the surface tension of PET silver paper is high, the fiber on the surface of the paper is relatively tight, which may cause the ink to be difficult to fully wet and penetrate the surface of the paper, affecting the adhesion of the ink. This can lead to problems such as ink loss and blurred images in printed matter.

Low surface tension: On the contrary, PET silver paper with low surface tension is more easily wetted by ink, which is conducive to ink adhesion. However, if the surface tension is too low, it may also lead to excessive ink diffusion, affecting the clarity of the print.

2. Printing quality

Uniformity: The consistency of surface tension has an important impact on the uniformity of printing quality. If the surface tension of PET silver paper is not uniform, it may lead to different ink adhesion and drying speed of the print in different areas, thus affecting the overall printing effect.

Clarity: Proper surface tension helps the ink spread evenly across the surface of the paper and form a clear image. Too high or too low surface tension can affect the clarity of the print.

3. Printing process adjustment

Ink selection: For PET silver paper with different surface tension, different types of ink may need to be selected to ensure good printing results. For example, for paper with low surface tension, it may be necessary to choose an ink with better wettability and adhesion.

Printing conditions: Printing pressure, speed and other conditions also need to be adjusted according to the surface tension of PET silver paper. Proper printing conditions help to ensure the uniform distribution and good adhesion of ink on the surface of the paper.

4. Special handling requirements

Surface pretreatment: For PET silver paper with low surface tension, surface pretreatment (such as corona treatment, special coating, etc.) may be required to improve its surface energy and wetting ability, thereby improving the adhesion and printing effect of the ink.

5. Practical application considerations

In practical applications, the appropriate surface tension range needs to be selected according to the specific use and printing requirements of PET silver paper. For example, in the case of high definition printing, PET silver paper with moderate and consistent surface tension should be selected; In cases where good ink adhesion is required, a specially treated paper with low surface tension may need to be selected.

In summary, different surface tension PET silver paper has a significant impact on the printing effect. In order to ensure good printing quality, it is necessary to select the appropriate ink according to the surface tension characteristics of the paper, adjust the printing conditions, and perform surface pretreatment if necessary.