The importance of screen printing mesh distance
The importance of screen printing mesh spacing is very concerned about this issue, only more familiar with the product can be used more. McGrady professional technicians can answer that the mesh distance is very important.
If the design of the network spacing is relatively large, there will be problems. For example, the doctor blade needs to increase the squeegee pressure so that the screen can touch the substrate, but before the screen is in contact with the substrate, the ink is squeezed onto the printing surface of the screen. If this is serious, it is bound to be A printed pattern on a dirty substrate or substrate.
If the squeegee pressure is too large, the printed image will be damaged, and the dot will be deformed or the dot will be enlarged. The greater the blade pressure, the faster the rebound speed of the screen after printing, the ink can not be completely transferred to the substrate, which will lead to the appearance of moiré, incomplete pattern, drawing, bubbles, poor edge definition, etc. Printing rickets. Another cause of poor print quality is the low tension of the screen and the small mesh distance. In this case, the screen will wrinkle during the doctor blade squeegee, forming ripples on the printed matter, eventually causing severe image distortion and ghosting.
The uneven thickness of the ink adhesion may be caused by the following factors:
1. The mesh distance is too large and the blade is deformed. Any of these factors may cause uneven adhesion of the ink, and the final print may vary in color. The small mesh distance can ensure uniform ink adhesion, and the mesh distance is too large, which tends to cause uneven ink adhesion, especially at the two ends of the scraper, the ink adhesion is more uneven.
2. The mesh distance, scraper and screen tension change is uncertain;
3. The screen and the substrate are not parallel;
The importance of screen printing mesh spacing is very concerned about this issue, only more familiar with the product can be used more. McGrady professional technicians can answer that the mesh distance is very important.
If the design of the network spacing is relatively large, there will be problems. For example, the doctor blade needs to increase the squeegee pressure so that the screen can touch the substrate, but before the screen is in contact with the substrate, the ink is squeezed onto the printing surface of the screen. If this is serious, it is bound to be A printed pattern on a dirty substrate or substrate.
If the squeegee pressure is too large, the printed image will be damaged, and the dot will be deformed or the dot will be enlarged. The greater the blade pressure, the faster the rebound speed of the screen after printing, the ink can not be completely transferred to the substrate, which will lead to the appearance of moiré, incomplete pattern, drawing, bubbles, poor edge definition, etc. Printing rickets. Another cause of poor print quality is the low tension of the screen and the small mesh distance. In this case, the screen will wrinkle during the doctor blade squeegee, forming ripples on the printed matter, eventually causing severe image distortion and ghosting.
The uneven thickness of the ink adhesion may be caused by the following factors:
1. The mesh distance is too large and the blade is deformed. Any of these factors may cause uneven adhesion of the ink, and the final print may vary in color. The small mesh distance can ensure uniform ink adhesion, and the mesh distance is too large, which tends to cause uneven ink adhesion, especially at the two ends of the scraper, the ink adhesion is more uneven.
2. The mesh distance, scraper and screen tension change is uncertain;
3. The screen and the substrate are not parallel;
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