In water-based ink, what is the difference between adding wax emulsion and wax powder? Various low-molecular, high-melting point wax powders or wax emulsions are often added to the water-based ink coating formulation. The main purpose is to improve the coating surface during the thermal transfer process to have a full feel, wear resistance and scratch resistance. Degassing and texturing effects.
In the water-based ink formula, the difference between adding wax emulsion and wax powder: In the water-based ink system, the effect of wax emulsion is the same as that of wax powder, both can It can improve the wear resistance, scratch resistance, leveling and degassing of the ink paint film, but I think the biggest difference is the problem of dispersion and compatibility.
1. Dispersion. After the wax emulsion is emulsified by the emulsifier, the system is relatively stable and the dispersibility is relatively good. When it is added to the ink system, it can be well and evenly dispersed in the ink system, and the compatibility is relatively good. The wax powder itself belongs to ultra-fine particles. The finer the wax powder is added, the wax powder will be agglomerated due to the action of molecular force. If it is added to the ink system, if the dispersion is not good, the surface of the ink paint film will be rough and not smooth. The feel is grainy. But if the dispersion of the wax powder is good, the effect is also leveraged.
2. 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 emulsion, it is necessary to consider whether other formulations in the formulation will interact with it during use. reaction, leading to poor compatibility problems.
In summary, in water-based ink formulations, both wax emulsion and wax powder can bring excellent product performance to the ink coating, but it must be fully Customer service dispersion and compatibility issues.
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