Table 3.
Color parameters (L, a, b, ΔE and WI) of SPS and SPS/SPP films at CA of 0%, 1%, 1.5%, and 2%.
| Sample | L | a | b | ΔE | WI |
|---|---|---|---|---|---|
| SPS | 91.95 ± 0.06 a | −0.92 ± 0.09 f | 6.19 ± 0.11 g | 10.01 ± 0.08 g | 89.80 ± 0.07 a |
| SPS CA 1% | 75.32 ± 0.83 b | 8.68 ± 0.44 e | 13.17 ± 0.49 e | 29.09 ± 1.03 f | 70.71 ± 1.03 b |
| SPS CA 1.5% | 63.87 ± 1.30 c | 16.55 ± 0.65 d | 14.33 ± 0.41 d | 42.03 ± 1.47 e | 57.75 ± 1.47 c |
| SPS CA 2% | 55.03 ± 0.45 e | 20.61 ± 0.66 c | 18.21 ± 0.64 c | 52.50 ± 0.77 d | 47.28 ± 0.76 d |
| SPS/SPP | 58.33 ± 0.87 d | 16.93 ± 0.61 d | 41.28 ± 0.45 a | 60.97 ± 0.51 c | 38.94 ± 0.51 e |
| SPS/SPP CA 1% | 37.56 ± 0.26 f | 22.88 ± 0.35 a | 19.09 ± 0.49 b | 68.93 ± 0.25 b | 30.81 ± 0.25 f |
| SPS/SPP CA 1.5% | 33.47 ± 0.42 g | 21.53 ± 0.58 b | 13.20 ± 1.03 e | 70.88 ± 0.39 a | 28.83 ± 0.38 g |
| SPS/SPP CA 2% | 32.12 ± 0.33 h | 20.89 ± 0.90 bc | 11.67 ± 0.92 f | 71.68 ± 0.50 a | 28.02 ± 0.49 g |
Different superscript lowercase letters within the same row indicate significant differences by the Fisher’s test (p < 0.05).