Transparency
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Luvitec® PVP is a transparent compound which does not alter in color with time. As such, Luvitec® products will not affect the color stability, nor the product's aesthetics. |
Figure 1 shows that Luvitec® products are stable in the 400-800nm wavelengths, which correspond to the spectrum of visible light.
Figure 1: Absorbance of Luvitec® K90 by UV spectrum
Recommended Luvitec® grades for applications needing Transparency
Recommended Products |
Polyvinylpyrrolidone Benefits |
| Luvitec® K30 |
vinylpyrrolidone homopolymer, good tack and adherence, low viscosity |
| Luvitec® K90 |
vinylpyrrolidone homopolymer, good tack and adherence, high viscosity |
| Luvitec® VA-64 |
vinylpyrrolidone/vinylacetate copolymer, good adherence, low melting point (90°C) |
