What is the difference between wax lotion and wax powder in water-based ink formulation?

So in the water-based ink formula, whether it is better to add the emulsified wax lotion or wax powder?

In water-based ink system, wax lotion plays the same role as wax powder, both of which can improve the abrasion resistance, scratch resistance, leveling and degassing of ink film, but I think the biggest difference is dispersibility and compatibility.

Dispersion: after the wax lotion is emulsified by emulsifier, the system is relatively stable and has good dispersibility. When it is added to the ink system, it can be well dispersed in the ink system, and has good compatibility. And wax powder itself belongs to ultrafine particles. The finer the wax powder is added, the more it will agglomerate due to the action of molecular force. When added to the ink system, if the dispersion is not good, the surface of the ink film will be very rough, without a smooth feel and a granular feel. But if the dispersibility of wax powder is good, the effect is also remarkable.

Compatibility: In the preparation of all coating formulations, the overall compatibility will directly affect the performance of the entire product. Therefore, whether it is wax powder or wax lotion, in the use process, it is necessary to consider whether other formulations in the formulation will react with it, resulting in poor compatibility.

To sum up, in the water-based ink formulation, whether wax lotion or wax powder, can bring excellent product performance to the ink coating, but it is necessary to fully solve the problem of dispersion and compatibility.