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Light resistance of screen printing ink
Jan 16, 2018

Light resistance. It refers to the degree of color stability of the ink imprinting under sunlight.

It depends on the properties of the pigment's light resistance, the thickness of the ink layer, the connecting material and the filling agent.

Packaging and printing and outdoor advertising are very demanding for the light resistance of the ink. Outdoor advertisements often require 3-5 years, and the color of the printed products has no obvious change.

The light will make the pigment (such as chemical oxidation or reduction reaction) and physical (crystal), lead pigment darkening and pale that completely drained away.



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