How to solve the problem that the letters printed by the screen printing machine are blurred and trailing?

The problem of blurred and trailing letters printed by the screen printing machine may be caused by many factors. Here are some possible causes and corresponding solutions:
1. Possible reasons
Plate making issues:
If the printing plate production is not up to standard, such as the dots are too rough or the printing plate is not thick enough, it will directly affect the printing quality.
The printing plate is not sufficiently dried or cleaned before use, resulting in unclear patterns and fonts.

Improper adjustment of the printing press:
The printing speed is too fast and the ink is not fully transferred to the substrate.
Insufficient printing pressure prevents the ink from evenly adhering to the surface of the substrate.
The appearance of the printing machine is damaged or the internal parts are worn, which affects the printing accuracy.

Ink problem:
The viscosity of the ink is inappropriate, resulting in unstable fluidity and affecting the printing effect.
During the period from when the ink is transferred to the substrate to when it dries, small text may be blurred due to its poor fluidity.

Detailed issues during operation:
Operators are not careful enough when adjusting printing press parameters. Small adjustments in parameters such as speed, pressure and temperature can have a significant impact on the printing results.
Improper squeegee pressure setting may cause uneven ink distribution or scratch the plate.

Substrate issues:
The surface of the substrate is uneven or has poor ink absorption, which affects the adhesion effect of the ink.

2. Solution
Check and optimize plates:
Make sure the printing plate is well made, with clear dots and moderate thickness.
Before use, dry the plate with a hair dryer and place it in the sun for a few hours to ensure it is fully dry.
Check whether the printing plate pattern and font are clear. If there are any small spots, you can use patching glue to fill them.

Adjust printing press parameters:
Reduce the printing speed to ensure that the ink has enough time to transfer to the substrate.
Increase the printing pressure appropriately so that the ink can evenly adhere to the surface of the substrate.
Regularly inspect the appearance and internal components of the printing press, and repair or replace damaged components in a timely manner.

Optimize ink performance:
Adjust the ink viscosity according to actual printing conditions to ensure stable ink fluidity.
Add an appropriate amount of additives (such as defoaming agent) to the ink to improve the ink performance.

Pay attention to the operation details:
The operator should patiently and carefully adjust the printing press parameters to ensure that each parameter is set in the best state.
Adjust the scraper pressure to ensure that the ink can be scraped without scratching the printing plate.

Choose the right substrate:
Choose the appropriate substrate according to your printing needs, ensuring its surface is flat and has good ink absorption.

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