Antibacterial and UV protective effects of cotton fabrics dyed with Brasi-Color extract
Journal Title: Proceedings of the International Conference on Advanced Materials and Systems (ICAMS) - Year 2018, Vol 1, Issue
Abstract
The wood of the Caesalpinia sappan species is the main source of red dyes used for dyeing textiles and paper, stain biological samples, metals identification, as anti-convulsant, immunosuppressant, anti-inflammatory, anti-bacterial and cancer drug. The main component, brazilin is colorless and to obtain a functional dye, it is oxidized to brazilein. The experimental work consisted in dyeing pre-mordanted cotton knit with Brasi-Color, a dyestuff extract of brazilwood. The aim of this research was to evaluate the effectiveness of mimosa tannin and aluminum potassium sulfate on dye exhaustion, the dyeing fastness, the antibacterial efficiency and UV protective effects of pre-mordanted and dyed cotton fabrics. The dyeing fastness is modest and need to be further optimized. The UV-Vis spectra demonstrated the presence of brazilein (λmax: 445nm and 542nm) as the main compound of the dye solution. The highest degree of dye exhaustion was obtained at the lowest concentration of mimosa tannin and alum. All the fabrics show an excellent ultraviolet protection factor (UPF>50+). The fabric pre-mordanted with 2% mimosa/4% alum and dyed with Brasi-Color transmits the lowest amount of UV rays on both UVA and UVB domains. All the dyed fabrics show a good antibacterial effect against S. Aureus.
Authors and Affiliations
Iuliana DUMITRESCU, Rodica Roxana CONSTANTINESCU, Elena Cornelia MITRAN, Elena PERDUM, Laura CHIRILĂ, George-Ovidiu IORDACHE, Dana Ştefănescu, Mariana Pîslaru, Iulian Mancaşi
Keywords
Related Articles
- EP ID EP603099
- DOI 10.24264/icams-2018.VIII.5
- Views 166
- Downloads 0
Study on the aroma-therapeutic effects of textiles functionalized by herbal extracts
This study, referring to the biologically active compounds compatible with textile materials, reveals its influence on human psychophysiological activity. In the COFUND-MANUNET III-AromaTex project, essential oils extrac...
Study on the functionalized graphene modified waterborne polyurethane materials
A new type of waterborne polyurethane (WPG) is fabricated using the functionalized graphene. The mechanical properties, wear resistance, and heat aging resistance of the modified polyurethane materials were tested. The r...
The antimicrobial activities of Myrtus communis and Micromeria fruticosa essential oils
This study was aimed to investigate the antimicrobial activity of Myrtus communis and Micromeria fruticosa against four Gram-positive (Methicillin resistant Staphylococcus aureus, Methicillin sensitive Staphylococcus aur...
Antibacterial and UV protective effects of cotton fabrics dyed with Reseda luteola extract
Reseda luteola (Weld) extracts were used to dye textiles and decorate medieval manuscripts. The main components are luteolin and apigenin in the form of β-glucosides, having an important role in plant UV protection, colo...
Composite scaffolds for bone regeneration made of collagen/hydroxyapatite/eucalyptus essential oil
Bone regeneration is a serious problem nowadays because of the increased number of people suffering from infections, arthritis and bond loss. The aim of the present study was to develop and characterize collagen – hydrox...