Investigation of dyeing, antibacterial and antifungal properties of blended fabrics treated with plant-based dyestuffs and mordants as shoe materials / Saltanat Sabyrkhanova in COLORATION TECHNOLOGY, Vol. 140, N° 4 (08/2024)  

[article]  inCOLORATION TECHNOLOGY > Vol. 140, N° 4 (08/2024) . - p. 598-611 Titre : Investigation of dyeing, antibacterial and antifungal properties of blended fabrics treated with plant-based dyestuffs and mordants as shoe materials Type de document : texte imprimé Auteurs : Saltanat Sabyrkhanova, Auteur ; Nilay Ork Efendioglu, Auteur ; Gulzinat Yeldiyar, Auteur ; Behzat Oral Bitlisli, Auteur Année de publication : 2024 Article en page(s) : p. 598-611 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Antibactériens Antifongiques Colorants végétaux Colorimétrie Fibres textiles -- Propriétés tinctoriales Mélanges de fibres Mordants végétaux (chimie) Solidité de la couleur Teinture -- Fibres textiles Index. décimale : 667.3 Teinture et impression des tissus Résumé : In this research article, it is reported the preparation and characterisation of four types of blended cotton-polyester based textile materials in different dye ratios with four kinds of natural dyes of agro waste (walnut shell, onion peel) and wildflowers (tansy, Hypericum) with/without mordants as antibacterial and antifungal species for shoe materials. The dyed samples were spectrophotometrically measured and the results were obtained as colour strength (K/S) as well as CIELab values. As a result, dyed fabrics with natural dyes showed yellow, grey, orange and brown colours. With the help of a mordant, aluminium-potassium, the dyed fabrics obtained natural, not distorted shades of these colours, and with the addition of copper sulphate, they showed changing yellow to light green, orange to dark red, grey to a darker shade of grey and brown to a darker colour. The dyed samples were tested for colour fastness to circle rubbing and satisfactory results were found. The fabrics dyed only with natural dyes and treated with natural dye and mordants were evaluated for antibacterial and antifungal properties against Escherichia coli, Staphylococcus aureus, and Candida albicans. The results indicated that fabrics treated with these natural dyes and mordants had excellent antibacterial and antifungal activity. All natural dyes and mordants used in this study were the most effective and showed the maximum inhibition zone, indicating the best antimicrobial and antifungal activity against tested microbes. The results showed that all these natural dyes can provide some antibacterial and antifungal activity on mixed fabrics. Note de contenu : - Table 1 : Fabric types and compositions - Table 2 : Colorimetric parameters of CIELab measured for colour depth by Konica Minolta spectrophotometer - Table 3 : Colourfastness evaluations of the dyed samples with mordants and without mordants DOI : https://doi.org/10.1111/cote.12730 En ligne : https://drive.google.com/file/d/1iNhkFjwKke1wIJ-tfvJwD3HN2EmLDkmZ/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=41320 [article]

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Reduction of Cr (VI) formation in leather with herbal extracts / Roza Mirzamuratova in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXIX, N° 2 (02/2024)  

[article]  inJOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CXIX, N° 2 (02/2024) . - p. 71-79 Titre : Reduction of Cr (VI) formation in leather with herbal extracts Type de document : texte imprimé Auteurs : Roza Mirzamuratova, Auteur ; Eser Eke Bayramoglu, Auteur ; Gulzinat Yeldiyar, Auteur Année de publication : 2024 Article en page(s) : p. 71-79 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Cuir -- Teneur en chrome hexavalent Cuirs et peaux -- Analyse Cuirs et peaux -- Finition Essais accélérés (technologie) Extraction (chimie) Extraits de plantes Réduction (chimie) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : This study investigates the effects of extracts from natural products such as oak bark, and onion peel, on the formation of Hexavalent Chromium (chromium (VI)) or (Cr (VI)) in leather during the finishing process. To enable chromium (VI) formation, finished leather samples were aged under various conditions, including exposure to UV light. The amount of chromium (VI) in each leather sample was measured using a PC UV-Visible spectrophotometer at 540 nm based on the ISO/FDIS 17075 standard method. The results showed that extracts from Quercus cortex, and Allium cepa significantly reduced chromium (VI) formation in the leather under all aging conditions. Note de contenu : - Materials and methods : Extraction process - Processes with plant extracts - Aging process - Chromium (VI) analysis on leather samples - Statistical evaluation - Table 1 : The recipe for leathers - Table 2 : The plants used in the study and picking regions - Table 3 : Recipe for finishing process - Table 4 : Chromium (VI) content of leather samples after aging process (80°C, 24h) - Table 5 : Evaluation of chromium (VI) analysis measurements (80°C, 24h) - Table 6 : Chromium (VI) content of leather samples after aging process by UV(80°C/UV, 24h) - Table 7 : Evaluation of chromium (VI) analysis measurements(80 °C/UV, 24h) - Table 8 : Chromium(VI) content of leather samples after aging process (80°C/UV, 72h) - Table 9 : Evaluation of chromium (VI) analysis measurements(80°C/UV, 72h) DOI : https://doi.org/10.34314/jalca.v119i2.8324 En ligne : https://drive.google.com/file/d/1hABHJ7JxIDEPPuXBNoG8y3q9F8qLZZWz/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=40467 [article]

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