## 3 Results
### Comparison of Textile Characteristics in Samples with and Without APPJ Treatment  
Table 2 and Figure 3 show the results of colorimetry parameters for samples subjected to plasma treatments (LP5, LP10, LP15) in comparison to the white fiber (LB) and mordant-dyed fiber (LM0). The mean fiber diameter (MFD) exhibits an increase correlated with the duration of plasma treatment, ranging from 26.33 \(\pm\) 0.60 \(\upmu\)m in LP5 to 28.20 \(\pm\) 0.61 \(\upmu\)m in LP15. This increase, potentially attributable to the diffusion of dye and its electrostatic adherence, demonstrates greater efficacy compared to the treatment with mordants (LM0, 24.94 \(\pm\) 0.75 \(\upmu\)m) and the white fiber (LB, 24.12 \(\pm\) 0.55 \(\upmu\)m). The coefficient of variation (CV%) also increases with treatment, indicating a greater variability in fiber size. Regarding the comfort factor (CF), a slight decrease is observed with plasma exposure time, which could indicate a negative effect of these treatments. The curvature index (CI) decreases  
Figure 1: Bar chart of the colorimetric parameters of samples treated with and without plasma. Figure 2: Heatmap correlating colorimetry parameters. with increased plasma exposure time, suggesting that the fibers become straighter. Finally, the spinning fineness (SF) increases with plasma exposure time, which is related to the increase in MFD and suggests that the treatments are promoting fiber height growth. An analysis of variance (ANOVA) was conducted to evaluate the textile properties of the samples LM0, LB, LP5, LP10, and LP15, considering the characteristics DMF, CV, FC, IC, and SF. The results indicated that only the curvature index (IC) presented statistically significant variations among the different treatments, with \(p\leq 0.05\). The variables DMF, CV, FC, and SF did not show significant changes, with \(p>0.05\). In conclusion, the curvature index (IC) was the only characteristic that reflected a notable difference due to the applied treatments, while the other properties maintained statistical consistency without marked differences. According to the correlation heatmap depicted in Figure 4, the results demonstrate several significant correlations among the textile characteristics of wool fibers. The perfect correlation (1.00) between the mean fiber diameter (DMF) and spinning fineness (SF) indicates a direct relationship, suggesting that an increase DMF corresponds to a higher SF, which is favorable for producing fine yarns. Additionally, a strong positive correlation (0.89) between DMF and the curvature index (IC) implies that as DMF increases, so does the curvature of the fibers, influencing their handling and comfort in textile applications. On the other hand, the moderate negative correlation (\(-0.37\)) between DMF and comfort factor \begin{table}
\begin{tabular}{c c c c c} \hline \hline
**Treatments** & **DMF (\(\mu\)m)** & **FC (\%)** & **IC (\({}^{\circ}\)/mm)** & **SF (\(\mu\)m)** \\ \hline LM0 & 24.94 \(\pm\) 0.75 ab & 76.13 \(\pm\) 2.06 ab & 67.77 \(\pm\) 6.62 ab & 25.18 \(\pm\) 1.54 ab \\ \hline LB & 24.12 \(\pm\) 0.55 a & 79.83 \(\pm\) 1.67 b & 61.33 \(\pm\) 3.31 a & 23.85 \(\pm\) 0.50 a \\ \hline LP5 & 26.33 \(\pm\) 0.60 c & 75.20 \(\pm\) 3.93 ab & 74.30 \(\pm\) 10.56 b & 26.38 \(\pm\) 1.03 b \\ \hline LP10 & 26.12 \(\pm\) 0.91 bc & 72.00 \(\pm\) 4.89 a & 71.60 \(\pm\) 3.30 ab & 26.09 \(\pm\) 0.72 b \\ \hline LP15 & 28.20 \(\pm\) 0.61 d & 76.77 \(\pm\) 0.46 ab & 74.60 \(\pm\) 6.91 b & 28.61 \(\pm\) 0.31 c \\ \hline \hline \end{tabular} Mean fiber diameter (DMF); comfort factor (FC); curvature index (IC); spinning fineness (SF).  
\end{table} 
Table 2: Textile characteristics of wool fiber yarns dyed with plasma and without plasma. Figure 3: Bar chart of textile characteristics of samples treated with plasma and without plasma. (FC) suggests that fibers of greater diameter may be less comfortable, which is relevant for applications where comfort is crucial.