Color Stability
From a technical point of view, Luvitec® PVP does not evolve in color as it does not absorb the light. As shown in Figure 1 below, in the visible area (400-800nm), Luvitec® products do not absorb UV as the spectrum is totally flat.Therefore, formulations containing Luvitec® will not be affected in color over time.
Figure 1: Absorbance of Luvitec® K 90 by UV spectrum
Recommended Products |
Polyvinylpyrrolidone Benefits |
| Luvitec® K30 |
vinylpyrrolidone homopolymer, low viscosity, used to adjust Luvitec® K90 viscosity |
| Luvitec® K90 |
vinylpyrrolidone homopolymer, high viscosity, preferred in glue sticks and skin adhesives |
| Luvitec® VA-64 |
vinylpyrrolidone/vinylacetate copolymer, low melting point (90°C), preferred in hot-melts |
