When using oil-resistant agent in screen printing ink, you need to pay attention to the following
key issues:
1. Compatibility
Importance: The compatibility of oil-resistant agent and ink system is crucial. If the compatibility is poor,
it may cause ink stratification, agglomeration or poor printing effect.
Notes: Before use, sufficient tests should be carried out to determine the best ratio of oil-resistant agent and
ink system. At the same time, attention should be paid to the performance of oil-resistant agent in different
ink systems to avoid blind addition.
2. Addition amount
Importance: The addition amount of oil-resistant agent directly affects the performance of ink. Adding too much
may cause the ink to be too thin, affecting printing accuracy and adhesion; adding too little may not achieve the expected
effect.
Notes: The addition amount of oil-resistant agent should be reasonably controlled according to the ink type, substrate material
and printing requirements. Generally, the addition amount of oil-resistant agent should be between 0.01% and 0.3% of the total
ink, but the specific value needs to be determined through experiments.
3. Stirring and mixing
Importance: After the oil-resistant agent is added to the ink, it needs to be fully stirred to ensure its uniform distribution.
Note: During the stirring process, appropriate tools should be used to avoid bubbles. At the same time, the stirring time should be
long enough to ensure that the oil-proof agent is fully mixed with the ink.
4. Printing conditions
Importance: Printing conditions such as temperature, humidity, printing speed, etc. may affect the performance of the oil-proof
agent in the ink.
Note: The amount of oil-proof agent added and the ink formula should be adjusted according to the printing conditions. For example,
in a high temperature and low humidity environment, a slow-drying solvent may be needed to prevent the ink from drying too quickly;
while in a low temperature and high humidity environment, a fast-drying solvent may be needed to increase the drying speed of the ink.
5. Storage and transportation
Importance: The storage and transportation conditions of the oil-proof agent may also affect its performance.
Note: The oil-proof agent should be stored in a cool, dry, well-ventilated place, avoiding direct sunlight and high temperature. At the same time,
severe vibration and collision should be avoided during transportation to ensure that the performance of the oil-proof agent is not affected.
6. Testing and adjustment
Importance: Due to different requirements for oil-proof agents for different ink systems and substrate materials, sufficient testing and
adjustment should be carried out before use.
Note: The optimal amount of oil-resistant agent, stirring time, printing conditions and other parameters should be determined through
experiments. At the same time, the performance of the ink should be closely monitored during the printing process and adjusted as needed.
In summary, when using oil-resistant agent in screen printing ink, it is necessary to pay attention to key issues such as compatibility, amount
of addition, stirring and mixing, printing conditions, storage and transportation, and testing and adjustment. Through reasonable control and
management, the role of oil-resistant agent can be fully utilized to improve the performance of ink and printing effect.
