VASILICA POPESCU, IRINA CRINA ANCA SANDU, GABRIEL POPESCU<br>Study of Textile Materials Behavior at Dyeing with Colored Aqueous Extract Obtained by Boiling Peels, Arils and Seeds of Punica Granatum<br>Spectroscopic, colorimetric and statistic evaluations

VASILICA POPESCU, IRINA CRINA ANCA SANDU, GABRIEL POPESCU
Study of Textile Materials Behavior at Dyeing with Colored Aqueous Extract Obtained by Boiling Peels, Arils and Seeds of Punica Granatum
Spectroscopic, colorimetric and statistic evaluations

Abstract:

The extraction of natural pigments from the peels, arils and seeds of Punica granatum was accomplished by boiling them in the presence of water as solvent. Boiled extract/brown solution (CSF brown solution) was used to dye, in the same dyebath, 4 types of textile materials (wool, polyamide, cotton and cellulose acetate) using a pre-mordanting procedure. The nettle extract obtained as decoct was used as mordant. At the end of pre-mordanting stage (15 min), the extract obtained by boiling pomegranate peels, arils and seeds was added with the view to perform the dyeing. One has used 5 volumetric ratios mordant (mL): CSF brown solution (mL): 0:120; 60:60; 30:90, 90:30 and 50:120. Dyeing was performed at 100oC for 60 min. The effect of textiles dyeing was confirmed by FTIR analysis and color measurements. The parameter % strength SUM was calculated to study especially the mordant influence; was used the comparison of the sample pre-treated with mordant but dyed with CSF brown solution, with the sample dyed with CSF brown solution (without mordant). A statistic analysis was carried out for % strength SUM, computing the values of standard deviations (SD), standard errors of mean (SEM) and the coefficient of variation (CV). Keywords: peels, arils pomegranate, colorimetry, SUM strength, statistical analysis

Issue: 2016, Volume 67, Issue 12

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