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Physical and fastness properties of leather dyed with a natural dye extracted from beetroot peels using a biomordant / Louret A. Andalo in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 107, N° 6 (11-12/2023)
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Titre : Physical and fastness properties of leather dyed with a natural dye extracted from beetroot peels using a biomordant Type de document : texte imprimé Auteurs : Louret A. Andalo, Auteur ; Paul K. M. Sang, Auteur ; Rose Tanui, Auteur Année de publication : 2023 Article en page(s) : p. 226-231 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Acacia et constituants
Colorants végétaux
Cuirs et peaux -- Propriétés mécaniques
Cuirs et peaux -- Propriétés physiques
Cuirs et peaux -- Teinture
Cuirs et peaux de chèvres
Mordants (chimie)
Post-tannage
Tannage au chromeIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : Leather dyeing is an essential process in the leather industry, where synthetic dyes are predominantly used. However, the environmental concerns associated with synthetic dyes have led to rising interest in natural dyes as sustainable alternatives. The use of biomordants is however, gaining attention due to their eco-friendly nature and potential to enhance dye fixation and colour fastness. This study aimed at determining the physical and fastness properties of leather dyed using natural dye extract from beetroot peels with the assistance of a biomordant derived from Acacia nilotica barks and banana pseudo stem sap. The dyeing process involved the use of the biomordant in both a pre and post-mordanting technique. Various fastness properties of dyed leather were investigated to assess the quality and durability of the dyeing process including water spotting fastness according to ISO 15700, mild washing fastness according to ISO 15703, and rub fastness (dry and wet rub fastness) according to ISO 11640. To determine the effect of the biomordant on the strength properties of the leather, the physical properties of the dyed leather were also evaluated. The tensile and tear strength of the dyed leather were measured on an Instron using IUP 6. The dye bath exhaustion was measured using spectrophotometric analysis. The dyed leatherʼs fastness properties were discovered to be good to excellent on a grey scale of 5. All of the samples exceeded the minimum recommended values (UNIDO 1996) for tensile strength (>20N/mm2), percentage elongation at break (>40%), and tear strength (>30N/mm). The samples dyed with Acacia nilotica bark as a biomordant had the highest dye bath exhaustion, followed by banana pseudo stem sap, and leather dyed without any mordant had the lowest dye bath exhaustion. According to the results obtained in this study, the use of biomordant in the dyeing of leather with natural dye from beetroot peels improved the fastness properties of the dyed leather as well as the strength of the resulting leather. Furthermore, the biomordant promoted dye uptake. Note de contenu : - MATERIALS AND METHODS : Materials - Methods - Physical properties of the dyed leather
- RESULTS AND DISCUSSION : Analysis of the physical properties of the dyed leather -
- Table 1 : Process for pre tanning goatskin
- Table 2 : Process for chrome tanning of goat wet-blue
- Table 3 : Post tanning process
- Table 4 : Tensile strength and percentage elongation of the dyed leather
- Table 5 : Tear strength of the dyed leather
- Table 6 : Fastness properties of the dyed leather both the mordanted and the umordanted samples on a grey scale of 5En ligne : https://drive.google.com/file/d/1G2w2KoZPKkzUblyRJeLJYFRmat4LDXbz/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=40242
in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 107, N° 6 (11-12/2023) . - p. 226-231[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 24370 - Périodique Bibliothèque principale Documentaires Sorti jusqu'au 14/05/2024 Polydopamine-coated silk yarn for improving the light fastness of natural dyes / Sanhanut Kesornsit in COLORATION TECHNOLOGY, Vol. 135, N° 2 (04/2019)
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Titre : Polydopamine-coated silk yarn for improving the light fastness of natural dyes Type de document : texte imprimé Auteurs : Sanhanut Kesornsit, Auteur ; Phichet Jitjankarn, Auteur ; Warayuth Sajomsang, Auteur ; Pattarapond Gonil, Auteur ; John B. Bremner, Auteur ; Montra Chairat, Auteur Année de publication : 2019 Article en page(s) : p. 143-151 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Caractérisation
Colorants végétaux
Enduction textile
Granulométrie
Photostabilité
Polydopamine
Soie et constituants
Teinture -- Fibres textilesIndex. décimale : 667.3 Teinture et impression des tissus Résumé : One of the problems occasionally associated with the use of natural dyes in the dyeing of silk is the susceptibility of the dyed yarn to fading in light. While a number of approaches have been used to address this problem, the use of polydopamine (PDA), a known agent with photo‐protective properties, has not been assessed previously. In this study, silk was pretreated with nano‐particulate PDA formed in situ by oxidation of a dopamine solution, then dyed with lac dye or annatto dye as model natural dyes. Photofading rates were significantly reduced in the case of annatto‐dyed, PDA‐coated silk relative to uncoated silk, while wash fastness was unaffected and remained only moderately good. In contrast, no significant change was seen in photofading rates with treated or untreated lac‐dyed silk, and wash fastness was also unaffected. The PDA did not adversely affect resultant colour values if the concentration of the dopamine precursor was kept low. When this was done, acceptable colours were obtained in the dyed silk. Further investigation is warranted of PDA as a photofading protectant and mordant with other natural dyes on silk and other fibres. Note de contenu : - EXPERIMENTAL : Materials and chemicals - Instruments - Preparation of PDA-coated silk - Average particle size and characterisation of the PDA - ATR-FTIR analysis - Dye preparation and dyeing of the PDA-coated silk yarn with lac and annatto dyes - Colour measurement and fastness testing - Light exposure
- RESULTS AND DISCUSSION : PDA characterisation - Preparation and characterisation of the PDA-coated silk yarn - Fading rate curves of the PDA-coated silk yarn - Fading rate curves of lac and annatto dyes - Improving the light fastness of annatto and lac dyes by coating silk yarn withy PDADOI : 10.1111/cote.12390 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12390 Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32328
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Code-barres Cote Support Localisation Section Disponibilité 20869 - Périodique Bibliothèque principale Documentaires Disponible Pomegranate fallen leaves as a source of natural dye for mordant-free dyeing of wool / Aminoddin Haji in COLORATION TECHNOLOGY, Vol. 139, N° 2 (04/2023)
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Titre : Pomegranate fallen leaves as a source of natural dye for mordant-free dyeing of wool Type de document : texte imprimé Auteurs : Aminoddin Haji, Auteur ; Fatemeh Shahmoradi Ghaheh, Auteur ; Liliana Indrie, Auteur Année de publication : 2023 Article en page(s) : p. 165-170 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Analyse de variance En statistique, l'analyse de la variance (terme souvent abrégé par le terme anglais ANOVA : ANalysis Of VAriance) est un ensemble de modèles statistiques utilisés pour vérifier si les moyennes des groupes proviennent d'une même population. Les groupes correspondent aux modalités d'une variable qualitative (p. ex. variable : traitement; modalités : programme d'entrainement sportif, suppléments alimentaires ; placebo) et les moyennes sont calculés à partir d'une variable continue (p. ex. gain musculaire).
Ce test s'applique lorsque l'on mesure une ou plusieurs variables explicatives catégorielles (appelées alors facteurs de variabilité, leurs différentes modalités étant parfois appelées "niveaux") qui ont de l'influence sur la loi d'une variable continue à expliquer. On parle d'analyse à un facteur lorsque l'analyse porte sur un modèle décrit par un seul facteur de variabilité, d'analyse à deux facteurs ou d'analyse multifactorielle sinon. (Wikipedia)
Colorants végétaux
Grenadier et constituants
Laine
Teinture -- Fibres textilesIndex. décimale : 667.3 Teinture et impression des tissus Résumé : The application of metal mordants is usually necessary in dyeing of wool with natural dyes to improve the dye exhaustion and fastness properties. The majority of metal salts generally used as mordants are considered as toxic and it is important to find replacements for them. Plant sources with high content of tannins are good candidates as bio-mordant or colourant to overcome this drawback. In this study, the waste fallen leaves of pomegranate tree were used as a source of natural dye for the eco-friendly dyeing of wool fabric without the use of metal mordants. The dyeing process variables including dye concentration, dyebath pH, and temperature were optimised using response surface methodology to obtain the highest colour strength. The colour strength was increased by increasing the natural dye powder up to 100%owf while the optimum pH and dyebath temperature were 4 and 100°C, respectively. The sample dyed under the optimal condition exhibited good fastness properties against washing and light. This study approved the potential of Punica granatum fallen leaves for the dyeing of wool without any mordant, while high fastness properties were obtained. Note de contenu : - Table 1 : The factors and their upper and lower limits The experimental design and responses
- Table 2 : Analysis of variance (ANOVA) results of the reduced quadratic model
- Table 3 : The coefficient estimates of the dyeing process variables
- Table 4 : The proposed optimal condition for obtaining highest colour strength
- Table 5 : Fastness properties of the sample dyed under the optimal conditionDOI : https://doi.org/10.1111/cote.12651 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12651 Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39528
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Code-barres Cote Support Localisation Section Disponibilité 24085 - Périodique Bibliothèque principale Documentaires Disponible Potential for carrying dyes derived from spalting fungi in natural oils / Sara C. Robinson in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 14, N° 5 (09/2017)
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Titre : Potential for carrying dyes derived from spalting fungi in natural oils Type de document : texte imprimé Auteurs : Sara C. Robinson, Auteur ; Sarath Mercedes Vega Gutierrez, Auteur ; Rosa Amelia Cespedes Garcia, Auteur ; Nicole Iroume, Auteur ; Nikole Renee Vorland, Auteur ; Amy McClelland, Auteur ; Megan Huber, Auteur ; Savannah Stanton, Auteur Année de publication : 2017 Article en page(s) : p. 1107-1113 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Bois
Champignons et constituants
Colorants végétaux
Huiles et graisses végétales
Matériaux -- Coloration
Mélanges (chimie)Index. décimale : 667.9 Revêtements et enduits Résumé : Wood colored internally by fungi has long been used by woodcrafters and artisans as a substitute for synthetic dyes. Recent advances in the field of spalted wood have led to methods by which the fungal dyes can be extracted from either a fungal solution or colonized wood and then reapplied to clear wood. This takes the “guess work” out of spalting, as well as the time necessary for fungal colonization; however, it requires organic solvents like dichloromethane, which are toxic and not readily available to consumers. Herein, the authors show that the dyes can be successfully carried and blended together (to increase the range of colors) in a range of natural oils. The blue–green dye of Chlorociboria species, called xylindein, carried best in raw linseed oil, the red dye of Scytalidium cuboideum performed best in Danish oil, although more dye could be carried in raw linseed oil, and the yellow dye of Scytalidium ganodermophthorum performed best in walnut oil. The ability to carry and mix these dyes in easily purchased, nontoxic oils opens up their use to woodworkers who seek to follow the traditions of spalted wood, but do not have the skills or time to work with live fungal cultures or fungal dyes suspended in toxic organic solvents. Note de contenu : - EXPERIMENTAL METHODS AND MATERIALS : Dyes - Submersion in oils - Tests - Analysis
- RESULTS : Carrying capacity - Interactions - Solids - BlendsDOI : 10.1007/s11998-017-9919-4 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-017-9919-4.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=29145
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Code-barres Cote Support Localisation Section Disponibilité 19230 - Périodique Bibliothèque principale Documentaires Disponible Potential for fungal dyes as colorants in oil and acrylic paints / Seri C. Robinson in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 15, N° 4 (07/2018)
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Titre : Potential for fungal dyes as colorants in oil and acrylic paints Type de document : texte imprimé Auteurs : Seri C. Robinson, Auteur ; Sarath Mercedes Vega Guttierrez, Auteur ; Rosa Amelia Cespedes Garcia, Auteur ; Nicole Iroume, Auteur ; Nikole Renee Vorland, Auteur ; Claudia Andersen, Auteur ; Igor D. de Oliveira Xaxa, Auteur ; Olivia E. Kramer, Auteur ; Megan E. Huber, Auteur Année de publication : 2018 Article en page(s) : p. 845-849 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Champignons et constituants
Colorants végétaux
Essais (technologie)
Huile de linL'huile de lin ou "huile de graines de lin" est une huile de couleur jaune d'or, tirée des graines mûres du lin cultivé, pressées à froid et/ou à chaud ; parfois elle est extraite par un solvant, en vue de l'usage industriel ou artistique, principalement comme siccatif, ou huile auto-siccative.
Les utilisations de l'huile de lin dérivent de sa richesse en acides gras polyinsaturés, en particulier en acides linolénique et linoléique, qui lui doivent leur nom.
L'huile de lin polymérise spontanément à l'air, avec une réaction exothermique : un chiffon imbibé d'huile peut ainsi, dans certaines conditions, s'enflammer spontanément.
Pour ses propriétés de polymère, l'huile de lin est employée seule, ou mélangée à d'autres huiles, résines et solvants, et est utilisée en tant que : Imprégnateur et protecteur des bois à l'intérieur comme à l'extérieur : protection contre l'humidité, les champignons et insectes, et contre la poussière par son caractère antistatique, composant de certains vernis de finition, liant de broyage pour la peinture à l'huile, agent plastifiant du mastic de vitrier, agent durcisseur de diverses préparations, agent de cohérence et liant dans la fabrication du linoléum.
Immersion
Peinture à l'huile
Polyacryliques
Revêtements -- Analyse:Peinture -- Analyse
Revêtements organiquesIndex. décimale : 667.9 Revêtements et enduits Résumé : Potential applications for colorants derived from the spalting fungi Chlorociboria aeruginascens, Chlorociboria aeruginosa, Scytalidium cuboideum, and Scytalidium ganodermophthorum are of growing interest across a variety of fields, from wood and textile dyes, to solar cells. Previous research found that these dyes could be carried in natural oils, specifically raw linseed oil, instead of organic solvents, thereby eliminating the toxicity issues surrounding such carriers. In this work, dyes from the aforementioned fungi were extracted, carried in raw linseed oil, and mixed with a range of oil and acrylic paints to determine if the oil carrier was appropriate for delivering the dyes into a paint matrix. The oil-based dyes did not mix evenly with the acrylic paints; however, the acrylic paints maintained the color of the dyes. In contrast, the oil-based paints mixed well with the dyes, but the dyes decolorized (completely lost color) due to the presence of refined linseed oil in the paint base. Artists’ paints do not appear to be compatible with fungal dyes when carried in oil; however, there are still many potential applications for the oil-based dyes, such as wood and textile dyeing. Note de contenu : - Fungi
- Submersion in oil
- Paints
- Tests
- AnalysisDOI : 10.1007/s11998-017-0032-5 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-017-0032-5.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=30861
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Code-barres Cote Support Localisation Section Disponibilité 20078 - Périodique Bibliothèque principale Documentaires Disponible PermalinkA propos de la quercitine et de la quercétine / Pierre Avenas in L'ACTUALITE CHIMIQUE, N° 484-485 (05-06/2023)
PermalinkScreening of natural dyes from filamentous fungi and leather dyeing with Monascul purpureus extract / Wagner Fernando Fuck in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 102, N° 2 (03-04/2018)
PermalinkSpalting colorants as dyes for wood stabilizers / He Rui in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 16, N° 3 (05/2019)
PermalinkSpecial review paper : leather dyeing with biodyes from filamentous fungi / Wagner Fernando Fuck in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXIII, N° 9 (09/2018)
PermalinkStabilisation and detoxification of henna (Lawsonia inermis L.) extract for hair dye cosmetics by spray-drying encapsulation / Ying Tang in COLORATION TECHNOLOGY, Vol. 135, N° 6 (12/2019)
PermalinkStudies of the application of biocolorant for leather dyeing using Monascus Purpureus / A. Tamil Selvi in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXIII, N° 4 (04/2018)
PermalinkThe effect of mordant salts on antibacterial activity of wool fabric dyed with pomegranate and walnut shell extracts in COLORATION TECHNOLOGY, Vol. 128, N° 6 (2012)
PermalinkThe evaluation of procedures for dyeing silk with buckthorn and walloon oak on the basis of colour changes and fastness characteristics / Ozan Deveoglu in COLORATION TECHNOLOGY, Vol. 129, N° 3 (06/2013)
PermalinkThe use of cochineal and Monascus purpureus as dyes for cotton fabric / Palanivel Velmurugan in COLORATION TECHNOLOGY, Vol. 129, N° 4 (08/2013)
PermalinkThe use of nutshell firstly as a natural dye for cotton and wool and then as a natural adsorbent for colour removal of basic dye effluent / Elçin Güneş in COLORATION TECHNOLOGY, Vol. 133, N° 1 (02/2017)
PermalinkTopping of naturally dyed wool fabrics with different natural dye sources / Hüseyin Benli in COLORATION TECHNOLOGY, Vol. 139, N° 2 (04/2023)
PermalinkUtilisation des extraits tinctoriaux en tannerie / J.-J. Rodier in REVUE TECHNIQUE DES INDUSTRIES DU CUIR, Vol. LXIII (Année 1971)
PermalinkUtilisation of Tectona grandis (teak) leaf extracts as natural hair dyes / Natthawadee Tibkawin in COLORATION TECHNOLOGY, Vol. 138, N° 4 (08/2022)
PermalinkVaseline treatment combined with a natural dye extract to enhance lip print contrast images / Titichaya Mebuathong in COLORATION TECHNOLOGY, Vol. 137, N° 4 (12/07/2021)
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