Screen printing machine - poor ink adhesion
Problem Performance:Printed text or patterns come off easily, especially after sterilization or long-term storage.
Cause analysis:
The surface of the centrifuge tube is not thoroughly cleaned and adheres to oil or dust.
The ink used is incompatible with the material of the centrifuge tube, and the adhesion is insufficient.
Improper drying time or temperature setting, resulting in incomplete curing of the ink.
Solution:
Perform surface treatment on the centrifugal tube before screen printing, such as cleaning, drying or corona treatment, to enhance the adhesion.
ｓｅｌｅｃｔ the matching ink according to the material of the centrifugal tube (e.g. PP, PE, etc.) and conduct a small-scale test.
Optimize the drying process and adjust the appropriate temperature and time to ensure that the ink is fully cured.
Calibrate the photoelectric positioning system and ｒｅｐｌａｃｅ deteriorated sensors if necessary.
