Note: Why will the gel pen tail oil and ink be separated after a while, and how to solve it 30

Gel pen tail oil and ink are inherently incompatible (i.e., not wet), just like dripping oil into water, due to the difference in density and non-wetting, the oil and water will separate and the oil floats on it. The purpose of tail oil is to seal the ink and play a sealing role.

When you inject the tail oil, due to the greater pressure, when the tail oil is injected into the ink, it is deep into the ink, because of the relationship between non-wetting, it will be automatically separated, and because the ink concentration is larger, so the tail oil needs a certain amount of time to separate from the ink.

When injecting tail oil, it is important to note that the pressure is not too large, as this will bring in air and form a gap between the ink and the tail oil. As long as it is small and adjusted to the appropriate pressure.

Hope it helps.

It is normal for the gel pen tail oil to be separated from the ink, and if it is mixed together, it will cause problems.

Mutual miscibility: where the two liquids will definitely have a certain mutual invasion phenomenon, and the ink and tail oil miscibility is the smaller the better, if the tail oil invades the ink, into the nib position, will have an impact on the refill writing.

Generally, there must be air after the gel pen is injected with ink and tail oil, and it needs to be centrifuged to discharge the air inside, otherwise it may flow backwards.

I don't know what you mean by asking, I hope it can help you.

You should not have used the centrifuge or the centrifuge time adjustment is incorrect; Set the appropriate centrifugation time according to the specifications of the tubing and the specifications of the tail oil.

The density is different, and the two have tried to be similar to each other.

The separation indicates that it is not miscible, which is needed, and the sinking indicates that the specific gravity of the tail oil is too large.

The best way is to buy a new one.

Absolute quality problem! If it is not serious, it should not affect the use.

The quality of the pen is a problem, the morning light and the snow pen is not bad, you can try it.

The ink of gel pen is a nano-scale pigment ink, in order to prevent volatilization and outflow, add a little oil in the barrel that does not volatilize, does not flow and is not miscible.

After centrifugation, the two substances form a suspension.

I guess so.

I won't go into details, but that's about it.

The quality of neutral ink or tail oil is not good.

The ink of the gel pen is a nano-level pigment ink, in order to prevent volatilization and outflow, add a little non-volatile, non-flowing and immiscible oil in the pen barrel after centrifugation, the two substances form a suspension Gel pen in the centrifugal ink tail oil mix is good, high talent.

Microscopically speaking, the ink and tail oil are miscible to a certain extent, but there is no external force to break this equilibrium and make it completely mixed.

Centrifugation will cause a relative equilibrium between different molecules to be broken.

That's it

Are you after rinsing the two oils in centrifugation.

If this is the case, then it is possible that Haruno has air bubbles in the barrel, and the ink on the writing ridge is discharged with the air and runs into the tail oil after centrifugation.

The automatic tail oil injection machine will not have this problem for you.

There is also a centrifuge to separate the tail oil from the ink.

Quality problems, either not enough centrifugation time during production, or poor ink quality. This generally does not affect the use.

Buy a centrifuge and shake off the ink from the tail oil.

It's useless to dump it, mine is, alas! After a while, there will be again! Ah, how to solve it!

Shake it, or knock it.

Buy a centrifuge and shake off the ink from the tail oil.

Doing gel pen processing is being deceived.