2.0 Requirements for products and inks
Resistances like:
Adhesion according to DIN/ASTM
(GT0/5B)
High chemical resistance
High alcohol resistance
High mechanical resistance
High temperature resistance with lowest DE
deviations
Humidity tests like:
Climate chamber test (Heat Soak) for 72 h at
65C°/95%RH
Alternating climate chamber test
Boiling test, e.g. 30 or 60 min. at 99°C
Optical requirements like:
High optical density
Colour coordinates (Lab-values)
Brightness value of white (L- value)
Good ink flow
High edge definition
Requirements to the ink structure:
Thin ink layers
High electrical resistance values of the ink
structure