For Rotogravure/Flexo - detailed information 
| quality |
Water-covering capacity |
Particle size disribution |
Apparent density |
Optical characteristics |
Leafing/Non Leafing |
| |
(cm²/g)
|
|
|
|
(g/cm³)
|
|
|
| 8980 |
22000
|
4
|
14
|
42
|
0,23 |
high coverage |
Leafing |
| 80000/A |
35000
|
2
|
7
|
19
|
0,23 |
high coverage |
Leafing |
| 90000/A |
>35000
|
2
|
5,5
|
16
|
0,23 |
high coverage |
Leafing |
Indicative formulation:
Aluminium: 20%
Solvent: 15-50%
Binder: 65-35%
How to Formulate?
1/ Mix a first part of the solvent used in your formulation with the recommended aluminium grade.
2/ The obtained liquid dispersion is then to be mixed gradually to the binder using a slow rotation mixer (50rpm).
3/ Add remainder quantity of solvent and eventually other additives.
Notes
Use binders with a low degree of acidity (neutral) to improve the stability of the ink.
Aggressive binders (i.e. nitrocellulose) can provoke a reaction of the metallic pigment in the binder.
When using aggressive binders, keep the quantity of binder to a minimum and increase the solvent loading.
Using a high rotation mixer may break the particles and as a result lower the shine and metallic effect.