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COLORATION TECHNOLOGY / Society of dyers and colourists . Vol. 129, N° 6Mention de date : 12/2013Paru le : 26/11/2013 |
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Ajouter le résultat dans votre panierAn unsupervised method for dominant colour region segmentation in yarn-dyed fabrics / Luo Lin in COLORATION TECHNOLOGY, Vol. 129, N° 6 (12/2013)
[article]
Titre : An unsupervised method for dominant colour region segmentation in yarn-dyed fabrics Type de document : texte imprimé Auteurs : Luo Lin, Auteur ; Si-Jie Shao, Auteur ; Hui-Liang Shen, Auteur ; Xin John H., Auteur Année de publication : 2013 Article en page(s) : p. 389–397 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Analyse numérique
Imagerie numérique
Imagerie tridimensionnelle
Impression sur étoffes
Teinture -- Fibres textiles
vision des couleursIndex. décimale : 667.3 Teinture et impression des tissus Résumé : This paper presents a novel unsupervised approach to detect dominant colour regions standing out conspicuously in yarn-dyed fabric images. For a dominant colour region of a yarn-dyed fabric, measured by an imaging system, its individual yarn has an irregular three-dimensional shape resulting in significant colour difference among pixels of the yarn. This difference leads to difficulty in segmenting yarns into dominant colour regions. A probabilistic model is proposed in this study to associate the colour of a dominant colour region with the colours of its yarns. Based on this model, the colour histograms of a dominant colour region are first estimated from those of yarns in a yarn-dyed fabric image. Then, a hierarchical segmentation structure is devised to detect dominant colour regions in the image. Experimental results show that the proposed approach achieves satisfactory performance for dominant colour region segmentation in yarn-dyed fabric images, with high computational efficiency. Note de contenu : - EXPERIMENTAL : Step : Estimate parameter - Step 2 : Reconstruct the colour histograms of dominant colours - Step 3 : Estimate threshold D - Summary of the segmentation algorithm
- RESULTS AND DISCUSSION : Verification of the probability model - Experimental result using a macro lens and a telephoto lensDOI : 10.1111/cote.12063 En ligne : http://onlinelibrary.wiley.com/doi/10.1111/cote.12063/pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=19709
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Code-barres Cote Support Localisation Section Disponibilité 15730 - Périodique Bibliothèque principale Documentaires Disponible Study of the cytotoxicity of reactive dyeing effluent treated by Fenton oxidation / Chung-Hin Chui in COLORATION TECHNOLOGY, Vol. 129, N° 6 (12/2013)
[article]
Titre : Study of the cytotoxicity of reactive dyeing effluent treated by Fenton oxidation Type de document : texte imprimé Auteurs : Chung-Hin Chui, Auteur ; Kun-Wai Man, Auteur ; Wai-Fung Tsang, Auteur ; Pik-Ling Lam, Auteur ; Kelvin Sze-Yin Leung, Auteur ; Wai-Yeung Wong, Auteur ; Chi-Wai Kan, Auteur ; Kim-Hung Lam, Auteur Année de publication : 2013 Article en page(s) : p. 398-402 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Colorants réactifs -- Détérioration
Décoloration
Eaux usées -- Décontamination
Fenton, Réaction de
Oxydation
Tests cutanés
Tests de toxicité
Toxicologie cellulaireIndex. décimale : 667.3 Teinture et impression des tissus Résumé : Fenton oxidative wastewater treatment of CI Reactive Black 5 and CI Reactive Blue 19 effluent was performed after a simulated laboratory-scale dyeing process, and the cytotoxicity of the treated effluent was evaluated using human skin cell lines. Among the components for Fenton oxidation, the human skin cell results showed that iron(II)sulfate at 150 mm did not show any significant cytotoxic effect, while other components, such as Glauber's salt solution (20 g l−1; 14%), CI Reactive Black 5 (30 mg l−1; 24%), caustic soda (5 g l−1; 30%), CI Reactive Blue 19 (30 mg l−1; 32%), hydrogen peroxide (0.01 m) and soda ash (5 g l−1) showed cytotoxic potential; the reagent sodium sulfite (30 mm; 48%) exhibited the strongest cytotoxicity level. Fast decolorisation (>95%) was achieved within 10 min for CI Reactive Black 5, while for CI Reactive Blue 19 it took longer (1.5 h) to achieve the same decolorisation. Studies showed that decolorisation for both dyes followed second-order kinetics. In spite of the remarkable efficacy of the Fenton oxidation process in removing colour within a short period of time, the resulting treated wastewater (within a reaction time of 1.5 h) also showed cytotoxicity towards the human HaCaT skin keratinocyte cell line. This observation can be explained by the strong oxidant and intermediate species produced during the advanced oxidation process, and a treatment step using sodium sulfite and a prolonged residence time can help to reduce the cytotoxicity. Note de contenu : - EXPERIMENTAL : Reagents and instruments - Laboratory-scale dyeing process - Cytotoxicity tests - Study of decolorisation kinetics
- RESULTS AND DISCUSSION : Study of dye decolorisation kinetics - Cytotoxicity testsDOI : 10.1111/cote.12055 En ligne : http://onlinelibrary.wiley.com/doi/10.1111/cote.12055/pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=19738
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Code-barres Cote Support Localisation Section Disponibilité 15730 - Périodique Bibliothèque principale Documentaires Disponible Photoassisted degradation of CI reactive red 195 using and Fe(III)-grafted polytetrafluoroethylene fibre complex as a novel heterogeneous Fenton catalyst over a wide pH range / Bing Li in COLORATION TECHNOLOGY, Vol. 129, N° 6 (12/2013)
[article]
Titre : Photoassisted degradation of CI reactive red 195 using and Fe(III)-grafted polytetrafluoroethylene fibre complex as a novel heterogeneous Fenton catalyst over a wide pH range Type de document : texte imprimé Auteurs : Bing Li, Auteur ; Yongchun Dong, Auteur ; Ding Zhizhong, Auteur Année de publication : 2013 Article en page(s) : p. 403-411 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : acrylique, Acide L'acide acrylique ou acide acroléïque ou acide prop-2-énoïque est un composé organique de formule brute C3H4O2 et de formule semi-développée CH2=CHCOOH. C'est un acide carboxylique et un alcène vinylique, et se présente comme un liquide incolore à l'odeur âcre.
L'acide acrylique et ses esters, les acrylates, sont utilisés dans la fabrication de matières plastiques, dans les peintures acryliques et dans divers autres polyacryliques qui ont de multiples usages.
Catalyse hétérogène
Colorants azoïques
Colorants réactifs -- Détérioration
Colorants réactifs -- Effets du rayonnement ultraviolet
Copolymères greffés
Fenton, Réaction de
Fer trivalent
Greffage (chimie)
Ions cuivre
Oxydation
pH
Polytétrafluoréthylène
Teinture -- Fibres textiles synthétiquesIndex. décimale : 667.3 Teinture et impression des tissus Résumé : Polytetrafluoroethylene fibre was grafted with acrylic acid to form an effective ligand, which coordinated with Fe(III) ions to prepare an Fe(III)-grafted polytetrafluoroethylene fibre complex. The photoassisted degradation of a typical azo dye, CI Reactive Red 195, using the Fe(III)-grafted polytetrafluoroethylene fibre complex as a novel heterogeneous Fenton catalyst in a wide pH range of 3–9 was investigated. In order to achieve better degradation in a higher pH range, the effect of Fe content, incorporation of Cu(II) ions and UV light irradiation on dye degradation was also examined. The results indicated that dye degradation was effective in the presence of the Fe(III)-grafted polytetrafluoroethylene fibre complex. Fast degradation of the dye can take place in an acidic environment. Increasing the Fe content or incorporating Cu(II) ions can significantly accelerate dye degradation, and UV light irradiation is much more effective than visible light irradiation in a higher pH range, especially in the alkaline pH range. Note de contenu : - EXPERIMENTAL : Materials and reagents - Graft polymerization of polytetrafluoroethylene fibres - Preparation of metal-grafted fibre complexes - Charaterisation of metal-grafted fibre complexes - Photocatalytic reaction set-up - Degradation procedure and analysis
- RESULTS AND DISCUSSION : Characterisation of metal-grafted fibre complexes - Metal ions leaching from the catalyst - Heterogeneous decomposition of dye at different solution pH - Fe content of the catalyst - Cu(II) ion as the assistant metal ion - UV light irradiationDOI : 10.1111/cote.12049 En ligne : http://onlinelibrary.wiley.com/doi/10.1111/cote.12049/pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=19739
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Code-barres Cote Support Localisation Section Disponibilité 15730 - Périodique Bibliothèque principale Documentaires Disponible Dyeing of leather with microencapsulated acid dye / Nasanjargal Purev in COLORATION TECHNOLOGY, Vol. 129, N° 6 (12/2013)
[article]
Titre : Dyeing of leather with microencapsulated acid dye Type de document : texte imprimé Auteurs : Nasanjargal Purev, Auteur ; Ladislav Burgert, Auteur ; Petr Prichystal, Auteur ; Radim Hrdina, Auteur ; Jiri Kühn, Auteur ; Michal Cerny, Auteur ; Jamyan Oyuntulkhuur, Auteur Année de publication : 2013 Article en page(s) : p. 412-417 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Colorants acides
Cuirs et peaux -- Teinture
Encapsulation
LiposomesIndex. décimale : 667.3 Teinture et impression des tissus Résumé : CI Acid Black 210 was microencapsulated into liposomic systems, and the effects of the microencapsulation on dyebath exhaustion, depth of shade, colour fastness properties and through-dyeing of chrome-tanned leather were studied. In comparison with the original dyestuff form, the microencapsulated dye showed a deeper shade and a greater depth of through-dyeing. Exhaustion and colour fastness values were the same. Note de contenu : - EXPERIMENTAL : Materials and equipment - Equipment and analyses - Preparation of the microencapsulated form of acid dyes
- EXPERIMENTAL PROCEDURE : Dyeing procedure ofleather with liquoring - Dyeing procedure of leather without liquoring
- RESULTS AND DISCUSSION : Physicochemical parameters of liposomic systems - Effect of microencapsulation of final dyebath exhaustion - Effect of microencapsulation on through-dyeing of leather - Effect of microencapsulation on depth of shade - Effect of microencapsulation on colour fastness propertiesDOI : 10.1111/cote.12054 En ligne : http://onlinelibrary.wiley.com/doi/10.1111/cote.12054/pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=19740
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Code-barres Cote Support Localisation Section Disponibilité 15730 - Périodique Bibliothèque principale Documentaires Disponible A facile synthesis and tautomeric structure of novel 4-arylhydrazono-3-(2-hydroxyphenyl)-2-pyrazolin-5-ones and their application as disperse dyes in COLORATION TECHNOLOGY, Vol. 129, N° 6 (12/2013)
[article]
Titre : A facile synthesis and tautomeric structure of novel 4-arylhydrazono-3-(2-hydroxyphenyl)-2-pyrazolin-5-ones and their application as disperse dyes Type de document : texte imprimé Année de publication : 2013 Article en page(s) : p. 418-424 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Analyse spectrale
Colorants -- Propriétés tinctoriales
Colorants -- Synthèse
Colorants azoïques
Polyesters
Tautomérie
Teinture -- Fibres textiles synthétiquesIndex. décimale : 667.3 Teinture et impression des tissus Résumé : The main target of this paper was the synthesis of novel azo disperse dyes with better dyeing properties, together with a systematic investigation to determine their dominant tautomer(s) from 12 possible tautomeric structures. In this regard, novel azopyrazolin-5-one dyes were synthesised via the reaction of hydrazine hydrate with 2,3,4-chromantrione-3-arylhydrazones. The acid dissociation constants both in the ground and in the excited state for the series prepared were determined and correlated by the Hammett equation. The results of this correlation, together with spectral data, indicated that the compounds under scrutiny exist predominantly in the keto-hydrazo structure as a Z-configuration, both in the ground and in the excited state. Finally, the synthesised dyes were applied as disperse dyes for dyeing polyester fabrics, and their fastness properties were evaluated. Also, the position of colour in CIELAB coordinates was estimated and discussed. Note de contenu : - EXPERIMENTAL : Materials and instrumentation - Synthesis and spectroscopic characterisation - pKa determination for compounds 4a to f - Dyeing and fastness determinations
- RESULTS AND DISCUSSION : Synthesis and tautomeric structure - Dyeing properties of the dyes on polyester fabricsDOI : 10.1111/cote.12052 En ligne : http://onlinelibrary.wiley.com/doi/10.1111/cote.12052/pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=19741
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Code-barres Cote Support Localisation Section Disponibilité 15730 - Périodique Bibliothèque principale Documentaires Disponible Preparation of non-aggregating novel silicon phthalocyanines axially disubstituted with fluorinated functions / Zekeriya Biyiklioglu in COLORATION TECHNOLOGY, Vol. 129, N° 6 (12/2013)
[article]
Titre : Preparation of non-aggregating novel silicon phthalocyanines axially disubstituted with fluorinated functions Type de document : texte imprimé Auteurs : Zekeriya Biyiklioglu, Auteur ; Ayse Aktas, Auteur Année de publication : 2013 Article en page(s) : p. 425-430 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Agrégats (chimie)
Analyse spectrale
Fluor -- Composés -- Synthèse
Phtalocyanine de silicium
Précipitation (chimie)
Solubilité
Solvants organiques
Spectres d'absorptionIndex. décimale : 667.3 Teinture et impression des tissus Résumé : This work reports on the synthesis, spectroscopic characterisation and aggregation behaviour of a range of new silicon phthalocyanines with 2-[3-(trifluoromethyl)phenoxy], 2-{2-[3-(trifluoromethyl)phenoxy]ethoxy}, 2-(2,3,5,6-tetrafluorophenoxy) and 2-[2-(2,3,5,6-tetrafluorophenoxy)ethoxy] groups as axial ligands. The new silicon phthalocyanine complexes were characterised, and their aggregation behaviour was investigated. Silicon phthalocyanine complexes were highly soluble in common organic solvents. The effect of solvents on absorption spectra were studied in various organic solvents. Note de contenu : - EXPERIMENTAL : Materials - Equipment - Synthesis
- RESULTS AND DISCUSSION : Synthesis and characterisation - Aggregation studiesDOI : 10.1111/cote.12048 En ligne : http://onlinelibrary.wiley.com/doi/10.1111/cote.12048/pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=19742
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Code-barres Cote Support Localisation Section Disponibilité 15730 - Périodique Bibliothèque principale Documentaires Disponible An alternative natural dye, almond shell waste : effects of plasma and mordants on dyeing properties / Erdem Ismal Özlenen in COLORATION TECHNOLOGY, Vol. 129, N° 6 (12/2013)
[article]
Titre : An alternative natural dye, almond shell waste : effects of plasma and mordants on dyeing properties Type de document : texte imprimé Auteurs : Erdem Ismal Özlenen, Auteur ; Esen Özdogan, Auteur ; Leyla Yildirim, Auteur Année de publication : 2013 Article en page(s) : p. 431-437 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Colorants végétaux
Colorimétrie
Coquilles d'amande
Essais accélérés (technologie)
Extraction (chimie)
Laine
Mordançage (teinture)
Solidité de la couleur
Technique des plasmas
Teinture -- Fibres textiles
Textiles et tissus -- LavageIndex. décimale : 667.3 Teinture et impression des tissus Résumé : In this study, the effect of the plasma process and the possibility of replacing metallic mordants with plasma treatment were investigated in natural dyeing with almond shell waste as a novel natural colorant. The use of a smaller amount of metallic mordants and plant than most of the current natural dye applications is a major advantage of dyeing with almond shell extract. Plasma-treated and untreated wool fabrics were dyed without mordant and using a smaller amount (0.2 g/l) of alum, iron(ii) sulfate and copper(ii) sulfate. Three mordanting methods, namely premordanting, simultaneous mordanting and post-mordanting, were applied. Colour measurements and light and wash fastness values were compared. Significant colour differences were observed among the mordanting methods. Simultaneous mordanting resulted in the lightest colours with all the mordants. Generally, post-mordanting produced duller colours and lower a* and b* values than premordanting. The plasma process generated significant colour value differences and colour yield increases, giving more homogeneous dyeing visually, and also ensured a greater impact of mordanting. However, compared with metallic mordants, plasma itself did not create completely different colour shades and fastness improvement. It was necessary to use mordants in order to achieve increased fastness properties (especially light fastness) and a different colour gamut. Note de contenu : - EXPERIMENTAL : Plasma treatment - Extraction of natural dye - Mordanting - Dyeing - Testing - Scanning electron microscopy
- RESULTS AND DISCUSSION : Evaluation of plasma treatment - Surface morphology of plasma-treated wool fibres - Colour measurement evaluation - Colour fastnessDOI : 10.1111/cote.12047 En ligne : http://onlinelibrary.wiley.com/doi/10.1111/cote.12047/pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=19748
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Code-barres Cote Support Localisation Section Disponibilité 15730 - Périodique Bibliothèque principale Documentaires Disponible One-step dyeing of polyethylene terephthalate fabric, combining pretreatment and dyeing using alkali-stable disperse dyes / Aiqin Hou in COLORATION TECHNOLOGY, Vol. 129, N° 6 (12/2013)
[article]
Titre : One-step dyeing of polyethylene terephthalate fabric, combining pretreatment and dyeing using alkali-stable disperse dyes Type de document : texte imprimé Auteurs : Aiqin Hou, Auteur ; Min Li, Auteur ; Fengliang Gao, Auteur ; Kongliang Xie, Auteur ; Xingying Yu, Auteur Année de publication : 2013 Article en page(s) : p. 438-442 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Colorants
Colorimétrie
Coût de production
Evaluation
Hydroxyde de sodiumL'hydroxyde de sodium, appelé également soude caustique7, est un corps chimique composé minéral de formule chimique NaOH, qui est à température ambiante un solide ionique. Fusible vers 318 °C, il se présente généralement sous forme de pastilles, de paillettes ou de billes blanches ou d'aspect translucide, corrosives et très hygroscopiques. Il est très soluble dans l'eau et légèrement soluble dans l'éthanol.
La solution d'hydroxyde de sodium, souvent appelée soude, est une solution aqueuse transparente. Concentrée, elle est corrosive et souvent appelée lessive de soude.
Les propriétés chimiques de l'hydroxyde de sodium sont surtout liées à l'ion hydroxyde HO- qui est une base forte. En outre, l'hydroxyde de sodium réagit avec le dioxyde de carbone (CO2) de l'air et se carbonate.
La solubilité de la soude caustique dans l'eau augmente avec la température, à pression constante ou ambiante.
pH
Polyéthylène téréphtalate
Teinture -- Fibres textiles synthétiquesIndex. décimale : 667.3 Teinture et impression des tissus Résumé : In the conventional dyeing process, polyester and its blended fabrics are usually dyed in a weak acidic medium. In order to reduce cost and improve production efficiency, a new dyeing method – one-step dyeing of polyethylene terephthalate fabrics, combining pretreatment and dyeing in alkali conditions – was investigated. The alkali-stable disperse dyes Red 900, Red 902, Yellow BROB and Blue 825 were used to dye polyethylene terephthalate fabrics. The dyeing properties of polyethylene terephthalate fabrics in the case of one-step dyeing at various pH values or sodium hydroxide concentrations were discussed in terms of colour yield, colour parameters and fastness. The performance of one-step dyeing using alkali-stable disperse dyes was excellent. The dyed fabric had good fastness. Wet processing could be combined and shortened. One-step dyeing of polyethylene terephthalate fabrics could reduce the consumption of water and energy and improve production efficiency. One-step dyeing of polyethylene terephthalate has potential application in cleaner textile production. Note de contenu : - EXPERIMENTAL : Materials - Pretreatment and dyeing of polyethylene terephthalate fabrics - Colour yield analysis - Measurements
- RESULTS AND DISCUSSION : One-step dyeing of polyethylene terephthalate fabrics - Effect of dyeing time on colour yields - Colorimetric data of dyed fabrics - Fastness properties - Evaluation of dyeing cost in productionDOI : 10.1111/cote.12050 En ligne : http://onlinelibrary.wiley.com/doi/10.1111/cote.12050/pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=19749
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Code-barres Cote Support Localisation Section Disponibilité 15730 - Périodique Bibliothèque principale Documentaires Disponible Effect of the rubbing force on dry rubbing fastness with various white cloths / Keiko Suganuma in COLORATION TECHNOLOGY, Vol. 129, N° 6 (12/2013)
[article]
Titre : Effect of the rubbing force on dry rubbing fastness with various white cloths Type de document : texte imprimé Auteurs : Keiko Suganuma, Auteur Année de publication : 2013 Article en page(s) : p. 443-447 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Evaluation
Frottements (mécanique)
Solidité de la couleur
Textiles et tissus
Transfert de colorantsTags : 'Tissus teints' blancs' 'Frottements secs' 'Transfert de colorants' 'Force frottement' Index. décimale : 667.3 Teinture et impression des tissus Résumé : The rubbing-off of dye from fabrics was investigated from a kinetic viewpoint using various white cloths under weights of 2–6 N. The natural logarithm of the rate constant of dye transfer from dyed fabric to white cloths and that of the equilibrium constant were linearly related to the reciprocal of the rubbing force, which was given by the product of the weight and the friction coefficient between the dyed fabric and white cloth. Two straight lines were obtained, in spite of the variety of white cloths used, and they converged in the low rubbing force range. The results show that the dry rubbing fastness with various white cloths is primarily influenced by the friction coefficient and rubbing force rather than by the types of textile fibre or fabric. Note de contenu : - EXPERIMENTAL : Sample of dyed fabric - Samples of white cloth - Measurement of friction coefficient - Rubbing test - Determination of the amount of dye transferred to white cloths
- RESULTS AND DISCUSSION : Friction coefficient - Amount of dye transferred to white cloth - A measure of rubbing fastness - Rate constant and equilibrium constantDOI : 10.1111/cote.12053 En ligne : http://onlinelibrary.wiley.com/doi/10.1111/cote.12053/pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=19750
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Code-barres Cote Support Localisation Section Disponibilité 15730 - Périodique Bibliothèque principale Documentaires Disponible Studies of the fibre structure and dyeing properties of Calotropis gigantea, kapok and cotton fibres / Qin Chen in COLORATION TECHNOLOGY, Vol. 129, N° 6 (12/2013)
[article]
Titre : Studies of the fibre structure and dyeing properties of Calotropis gigantea, kapok and cotton fibres Type de document : texte imprimé Auteurs : Qin Chen, Auteur ; Tao Zhao, Auteur ; Ming Wang, Auteur ; Jing Wang, Auteur Année de publication : 2013 Article en page(s) : p. 448-453 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Absorption
Calotropis gigantea
CotonLe coton est une fibre végétale qui entoure les graines des cotonniers "véritables"(Gossypium sp.), un arbuste de la famille des Malvacées. Cette fibre est généralement transformée en fil qui est tissé pour fabriquer des tissus. Le coton est la plus importante des fibres naturelles produites dans le monde. Depuis le XIXe siècle, il constitue, grâce aux progrès de l'industrialisation et de l'agronomie, la première fibre textile du monde (près de la moitié de la consommation mondiale de fibres textiles).
Diffractométrie de rayons X
Fibres végétales -- Analyse
Fibres végétales -- Propriétés mécaniques
Fibres végétales -- Propriétés tinctoriales
Fourier, Spectroscopie infrarouge à transformée de
KapokLe kapok, en malais kapuk, est une fibre végétale que l'on tire de fruits de plusieurs arbres de la famille des Bombacaceae. On utilise plus particulièrement ceux de Ceiba pentandra, le kapokier (aussi appelé « fromager »), un grand arbre des zones tropicales, originaire de Java. Ceux de Bombax ceiba, un autre fromager, peuvent également être employés.
Cette fibre très légère a pour caractéristique son imperméabilité et son imputrescibilité. Elle est constituée par les poils fins et soyeux recouvrant les graines.
Microscopie électronique à balayage
Morphologie (matériaux)
Surfaces -- AnalyseIndex. décimale : 667.3 Teinture et impression des tissus Résumé : Calotropis gigantea, kapok and cotton fibres are all natural cellulose fibres, but the first of these is rarely used in textile fabrics. In this study, the structure and chemical composition of these three kinds of fibre were studied, and the dyeing properties of fabrics made from each of them were compared. The purpose of this was to provide a theory basis for the application of C. gigantea fibre in the textile industry. The surface morphology and cross-section of C. gigantea fibre in comparison with kapok and cotton were studied by scanning electron microscopy. Their fibrous structures were analysed by Fourier Transform-infrared spectroscopy and X-ray diffraction. The mechanical properties and water absorption capabilities were also measured and compared. Both C. gigantea fibre and kapok fibre exhibit a high degree of hollowness (80–90%), and no natural twist exists; there is a certain amount of lignin and hemicellulose in C. gigantea fibres; the crystallinity of C. gigantea fibres is 42.54%, and its crystallinity orientation index is 85.40%. C. gigantea fibre has the lowest tenacity but has the highest water content of the three kinds of fibre. The results of dyeing tests show that C. gigantea fabric has the lowest dye uptake and dye fixation. Note de contenu : - EXPERIMENTAL : Materials - Scanning electron microscopy - Elemental analysis - Analysis of the chemical components - Fourier Transform-infrared spectroscopy - X-ray diffraction analysis - Mechanical properties and water absorption capabilities - Dyeing - Dye uptake and fastness
- RESULTS AND DISCUSSION : Scanning electron microscopy - Chemical composition analysis - Fourier Transform-infrared spectroscopy - X-ray diffraction analysis - Mechanical properties and water absorption capabilities - Dyeing properties of different fabricsDOI : 10.1111/cote.12051 En ligne : http://onlinelibrary.wiley.com/doi/10.1111/cote.12051/pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=19751
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Code-barres | Cote | Support | Localisation | Section | Disponibilité |
---|---|---|---|---|---|
15730 | - | Périodique | Bibliothèque principale | Documentaires | Disponible |