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Does the packing material differences effect adhesion of printed content?
- Jun 12, 2018 -

TTO Near Edge Ribbon.jpg

TTO Near Edge Ribbon

Yes. The influence of different packaging materials on the adhesion of ribbons is reflected in the following three aspects:

1, Surface smoothness of package material :

The surface of the packaging material is gully-filled from the microscopic point of view. The melted ink flows on the surface of the packaging material, spreads, and enters into the gully on the surface of the packaging material to form a riveting effect. The worse the smoothness of the surface of the packaging material, the more obvious the riveting effect, the better the adhesion, while the more smooth the more difficult to achieve good adhesion. We can notice that the handwriting printed on the matte material package has significantly better adhesion than the smooth package material.

2, Tension of package surface:

The transfer process of the ink ribbon is a physical change process. The adhesion between the surface of the handwriting and the packaging material is the force between the molecules. It is also called van der Waals force. The magnitude of the van der Waals force is inversely proportional to the 7th power of the object distance. It can be seen that the contact distance between the melted ink layer and the surface of the packaging material has a great influence on the adhesion. The surface tension of the packaging material does not match the ink of the ribbon, so that the ink cannot be spread on the surface of the packaging material in a short time, and a smaller molecular distance cannot be achieved. This is also one of the reasons why the same ribbon has a great difference in adhesion performance on different materials. The surface tension of the packaging material is related to the material of the packaging and the components of the printing ink. To select the appropriate ribbon, it must be confirmed by trial, also ensuring the stability of the package quality.

3, Difference of package material:

Van der Waals forces mainly rely on the formation of conjugate effects between the active electrons contained in the molecules of the ink layer and the surface material of the packaging, resulting in a conjugate electric field, which in turn creates mutual attraction. Conjugating effects are more likely to occur between mutually compatible materials, resulting in better adhesion.

In summary, there are many factors that affect the adhesion of the ribbons, and they cross each other. User's packaging materials are various and vary. Choosing the right hot stamp ribbon and using it well can be divided into the following steps: First, distinguish it from the apparent performance; Secondly, try it carefully and clarify the trial effect;finally, by adjusting the coder parameters to achieve better adhesion results.

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