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COLORATION TECHNOLOGY / Society of dyers and colourists . Vol. 127, N° 5Mention de date : 2011Paru le : 26/09/2011 |
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Ajouter le résultat dans votre panierTextile applications of photochromic dyes. Part 3 : factors affecting the technical performance of textiles screen-printed with commercial photochromic dyes as disperse dyes to polyester by exhaust dyeing / Anna F Little in COLORATION TECHNOLOGY, Vol. 127, N° 5 (2011)
[article]
Titre : Textile applications of photochromic dyes. Part 3 : factors affecting the technical performance of textiles screen-printed with commercial photochromic dyes as disperse dyes to polyester by exhaust dyeing Type de document : texte imprimé Auteurs : Anna F Little, Auteur ; Robert M. Christie, Auteur Année de publication : 2011 Article en page(s) : p. 275-281 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Absorbeurs de rayonnement ultraviolet
Colorimétrie
Naphthopyranes
Nettoyage
Photochromisme
Photostabilité
Pigments à effets spéciaux
Pigments photochromiques
Spirooxazine
Teinture -- Fibres textiles
Textiles et tissusIndex. décimale : 667.3 Teinture et impression des tissus Résumé : The technical performance of five selected commercial photochromic dyes applied by screen-printing on textiles was evaluated using a colour measurement methodology that has previously been established and validated. The results of wash fastness assessments were distinctly unusual. With the selected spirooxazine dyes, the degree of photocoloration increased with initial washing and decreased with subsequent washings, while the naphthopyrans behaved more normally, showing a consistent marginal decrease in photocoloration with repeated washing. An explanation is proposed consistent with scanning electron microscopy examination of the binder film degradation and with the structural differences between the dye classes. The dyes in this application showed limited photostability. The incorporation of ultraviolet absorbers was found to increase photostability only to an extent specific to particular ultraviolet absorber/dye combinations. However, the presence of the ultraviolet absorber led to a consistent reduction in the degree of photocoloration of the dyes. In contrast, the incorporation of hindered amine light stabilisers significantly enhanced the photostability of the dyes, providing an increase in resistance to photodegradation of up to fivefold. Note de contenu : - Instrumental methods - Materials
- Screen-printing
- Wash fastness test
- Photostability testDOI : 10.1111/j.1478-4408.2011.00307.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2011.00307.x/pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=12003
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Code-barres Cote Support Localisation Section Disponibilité 13324 - Périodique Bibliothèque principale Documentaires Disponible Textile applications of photochromic dyes. Part 4 : application of commercial photochromic dyes as disperse dyes to polyester by exhaust dyeing / Mohanad Aldib in COLORATION TECHNOLOGY, Vol. 127, N° 5 (2011)
[article]
Titre : Textile applications of photochromic dyes. Part 4 : application of commercial photochromic dyes as disperse dyes to polyester by exhaust dyeing Type de document : texte imprimé Auteurs : Mohanad Aldib, Auteur ; Robert M. Christie, Auteur Année de publication : 2011 Article en page(s) : p. 282-287 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Fibres polyesters
Matériaux -- Fatigue
Photochromisme
Pigments à effets spéciaux
Stabilité au stockage
Teinture -- Fibres textiles synthétiquesIndex. décimale : 667.3 Teinture et impression des tissus Résumé : A series of commercial photochromic dyes was applied to polyester fabric as disperse dyes. The photocoloration properties of the dyed fabrics were investigated by applying techniques previously established in our laboratories using an independent source of ultraviolet irradiation and traditional colour measurement instrumentation. The dyed fabrics showed reversible photochromism, developing pronounced colours from weak background colours on irradiation with ultraviolet light and returning to their original state when the ultraviolet light source was removed. However, the extent of photocoloration and the depth of background colour varied significantly with the particular dye used. The dyeing procedure was optimised by maximising the degree of photocoloration, expressed as the colour difference (?E1) between the colour developed after ultraviolet exposure and background colour, while minimising the background colour, expressed as the colour difference (?E2) between unexposed dyed and undyed fabrics. Optimum dyeing concentrations were determined. The colour development and fading properties, fatigue resistance and storage stability of the dyed fabrics were investigated. Note de contenu : - Instrumental methods
- Materials
- Disperse dyeing of polyester with photochromic dyes
- Fatigue resistance and storage stabilityDOI : 10.1111/j.1478-4408.2011.00308.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2011.00308.x/pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=12004
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Code-barres Cote Support Localisation Section Disponibilité 13324 - Périodique Bibliothèque principale Documentaires Disponible Synthesis and spectroscopic investigation of cationic donor-(π-bridge)-acceptor dye, 4-[N-(5,6,7,8-tetrahydroisoquinolinium-5-ylidene)methyl]-N,N-dialkylaniline iodide / Beata Jedrzejewska in COLORATION TECHNOLOGY, Vol. 127, N° 5 (2011)
[article]
Titre : Synthesis and spectroscopic investigation of cationic donor-(π-bridge)-acceptor dye, 4-[N-(5,6,7,8-tetrahydroisoquinolinium-5-ylidene)methyl]-N,N-dialkylaniline iodide Type de document : texte imprimé Auteurs : Beata Jedrzejewska, Auteur ; Barbara Michalak, Auteur Année de publication : 2011 Article en page(s) : p. 288-296 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Chromatographie sur couches minces
Hemicyanine
Résonance magnétique nucléaireIndex. décimale : 667.3 Teinture et impression des tissus Résumé : The synthesis and fundamental spectroscopic properties of eight hemicyanine (HC) dyes are presented. The dyes were prepared by the condensation of N-methyl-5,6,7,8-tetrahydroisoquinolinium iodide with p-(N,N-dialkylamino)benzaldehydes. The compounds were characterised by nuclear magnetic resonance spectroscopy and their purity was checked with the use of thin-layer chromatography. The spectroscopic properties of the dyes were determined in three organic solvents. The electronic absorption spectra of the dyes demonstrate moderate sensitivity to the nature of the substituent present in the aromatic ring and low solvent polarity dependence. In contrast to this, the positions of fluorescence bands are affected by the structure of an electron donor and solvent polarity. The 4-[N-(5,6,7,8-tetrahydroisoquinolinium-5-ylidene)methyl]-N,N-dialkylaniline iodides were applied as fluorescent probes for the monitoring of the progress of free radical polymerisation. The study on the changes in the fluorescence intensity and spectroscopic shifts of the dyes was carried out during thermally initiated polymeriszation of methyl methacrylate. The purpose of these studies was to find a relationship between the changes in the shape and intensity of probe fluorescence and the degree of monomer conversion into polymer. Note de contenu : EXPERIMENTAL : Measurements - Synthetic procedure
RESULTS AND DISCUSSION : Molecular design and synthetic procedures - Electronic absorption and emission properties - Probing of thermally initiated polymerisation of methyl methacrylateDOI : 10.1111/j.1478-4408.2011.00311.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2011.00311.x/pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=12077
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Code-barres Cote Support Localisation Section Disponibilité 13324 - Périodique Bibliothèque principale Documentaires Disponible Whiter wool from fleece to fabric / Keith R. Millington in COLORATION TECHNOLOGY, Vol. 127, N° 5 (2011)
[article]
Titre : Whiter wool from fleece to fabric Type de document : texte imprimé Auteurs : Keith R. Millington, Auteur ; A. L. King, Auteur ; S. Hatcher, Auteur ; C. Drum, Auteur Année de publication : 2011 Article en page(s) : p. 297-303 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Agents de blanchiment
Génétique animale
Laine
Ouatine
PhotostabilitéIndex. décimale : 667.3 Teinture et impression des tissus Résumé : The natural cream colour and low photostability of Merino wool are impediments that affect the wool’s competitiveness over a wide range of apparel and interior textile products. In particular, these two properties need improvement if the wool is to match the performance of cotton and synthetics in the expanding market for trans-seasonal knitwear. The strategy adopted by the Cooperative Research Centre (CRC) for Sheep Industry Innovation is to improve the whiteness of clean wool by genetic selection and to maintain whiteness through processing by developing a minimum-colour-impact route from fleece to fabric. Recent studies on the ‘Information Nucleus’ flocks established by the Cooperative Research Centre have confirmed the high heritability of clean wool colour and shown for the first time that photostability is moderately heritable using data from a new photostability test method. A pilot-scale commercial processing trial has shown that significant improvements in the whiteness of knitted products (up to 40 CIE Ganz units) can be achieved by selecting white fleece wools and optimising the processing route to avoid stages that may cause yellowing. Note de contenu : - Genetic factors influencing wool colour
- Environmental factors influencing wool colour
- Wool photostability and comparison with other fibres
- An optimised processing method for white woolDOI : 10.1111/j.1478-4408.2011.00312.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2011.00312.x/pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=12172
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Code-barres Cote Support Localisation Section Disponibilité 13324 - Périodique Bibliothèque principale Documentaires Disponible Neutral dyeing of wool and wool/polyester blend fabrics using sulphatoethylsulphone reactive-disperse dyes / Aballa A. Mousa in COLORATION TECHNOLOGY, Vol. 127, N° 5 (2011)
[article]
Titre : Neutral dyeing of wool and wool/polyester blend fabrics using sulphatoethylsulphone reactive-disperse dyes Type de document : texte imprimé Auteurs : Aballa A. Mousa, Auteur ; Yehya A. Youssef, Auteur ; Reham Farouk, Auteur ; T. M. Ayiesh, Auteur ; M. H. Arief, Auteur Année de publication : 2011 Article en page(s) : p. 304-309 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Colorants réactifs
Fibres polyesters
Laine
Sulfatoéthylsulfone
Teinture -- Fibres textilesIndex. décimale : 667.3 Teinture et impression des tissus Résumé : Two models of temporarily anionic sulphatoethylsulphone reactive disperse dyes were applied to wool, polyester and wool/polyester blend fabrics at different dyeing pH. Maximum exhaustion values and colour yield were observed at pH 7. The results showed that reactive disperse dyes containing bis-sulphatoethylsulphone reactive groups were more convenient for neutral dyeing of wool and wool/polyester blend fabrics if compared with a dye containing a mono-sulphatoethylsulphone group. Excellent to very good wet fastness properties on all dyed fabrics were achieved. Note de contenu : EXPERIMENTAL : Materials - Synthesis of reactive disperse dyes - Dyeing procedures - Measurements and testing
RESULTS AND DISCUSSION : Effect of diebath pH - Effect of dyeing time - Colorimetric and fastness propertiesDOI : 10.1111/j.1478-4408.2011.00313.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2011.00313.x/pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=12173
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Code-barres Cote Support Localisation Section Disponibilité 13324 - Périodique Bibliothèque principale Documentaires Disponible Preparation and characterisation of pigments based on mica coated with rare earth oxides / Shirleny F. Santos in COLORATION TECHNOLOGY, Vol. 127, N° 5 (2011)
[article]
Titre : Preparation and characterisation of pigments based on mica coated with rare earth oxides Type de document : texte imprimé Auteurs : Shirleny F. Santos, Auteur ; Silvia C. A. França, Auteur ; Tsuneharu Ogasawara, Auteur Année de publication : 2011 Article en page(s) : p. 310-313 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Caractérisation
Colorants
Hydrolyse
Mica
Muscovite
Pigments nacrés
Terres raresIndex. décimale : 667.2 Colorants et pigments Résumé : Muscovite from a Brazilian natural source was beneficiated using knife mills and an ultrasound treatment. It was possible to achieve mica with a particle size of below 100 and above 45 μm and a thickness of between 0.5 and 1 μm. This product could be used for the synthesis of intensely coloured pearlescent pigments based on muscovite covered with rare earth oxides (CeO2, PrO2 and Ce0.95Pr0.05O2). Pigments were prepared by hydrolysis and characterised by X-ray diffraction, thermal analyses (thermogravimetric/differential thermal) and scanning electron microscopy (MeV). The colour of the resulting pigments was analysed using the CIELab method, including a pearlescence index, and it showed the following colours: mica-CeO2, yellow; mica-PrO2, black; mica-Ce0.95Pr0.05O2, orange. Note de contenu : EXPERIMENTAL : Muscovite DOI : 10.1111/j.1478-4408.2011.00314.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2011.00314.x/pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=12174
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Code-barres Cote Support Localisation Section Disponibilité 13324 - Périodique Bibliothèque principale Documentaires Disponible N-methylpicolinium esters as co-initiators in dye photosensitiser systems for the polymerisation of acrylate monomers / Janina Kabatc in COLORATION TECHNOLOGY, Vol. 127, N° 5 (2011)
[article]
Titre : N-methylpicolinium esters as co-initiators in dye photosensitiser systems for the polymerisation of acrylate monomers Type de document : texte imprimé Auteurs : Janina Kabatc, Auteur Année de publication : 2011 Article en page(s) : p. 314-321 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Acrylates Les monomères acrylates sont un groupe d'esters faisant partie des vinyles, car renfermant une double liaison carbone-carbone et sont utilisés pour former des polyacryliques qui ont de multiples usages.
Colorants
Photosensibilisants
PolymérisationTags : 'Esters N-méthy picolinium' 'Co-initiateurs' Photosensibilisateur Acrylates Polymérisation Photoinitiation Colorants Index. décimale : 667.3 Teinture et impression des tissus Résumé : The photoinitiation ability of several dyeing photoinitiating systems composed of positively charged N,N’-diethylthiacarbocyanine iodide and 3-ethyl-2-(p-N,N-dimethylaminostyryl)benzothiazolium iodide acting as light absorbers, n-butyltriphenylborate anion being the electron donor, and diphenylacetic acid (N-methylpyridinium)methyl ester cation acting as a ground state electron acceptor are compared. Both co-initiators in the polymerising formulations were present, either as tetrabutylammonium salt and diphenylacetic acid (N-methylpyridinium)methyl ester perchlorate, respectively, or as an ion pair. The best photoinitiating ability was observed when the borate anion and diphenylacetic acid (N-methylpyridinium)methyl ester cation formed an ion pair. Modification of the ability of the photoinitiating system was concerned with the possibility of elimination of a diffusion process. This was achieved by synthesis of a properly designed dye-possessing diphenylacetic acid (N-methylpyridinium)methyl ester group. This dye, after electron transfer, forms an N-methylpicolinium derivative radical that fragments, forming an (N-methylpyridinium)methyl radical, organic acid anion and reduced dye. Finally, from a combination of either an N-methylpicolinium derivative or alkyltriphenylborate salts with a suitable sensitiser or a properly designed dye and alkyltriphenylborate salt, two radicals can be generated per one absorbed photon, thus enhancing the overall efficiency of the polymerisation. Note de contenu : Examples of the dye-sensitised polymerisation reactions : mechanism involved and efficiency of the reaction DOI : 10.1111/j.1478-4408.2011.00315.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2011.00315.x/pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=12175
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Code-barres Cote Support Localisation Section Disponibilité 13324 - Périodique Bibliothèque principale Documentaires Disponible Pretreatment of wool/polyester blended fabrics to enhance titanium dioxide nanoparticle adsorption and self-cleaning properties / Majid Montazer in COLORATION TECHNOLOGY, Vol. 127, N° 5 (2011)
[article]
Titre : Pretreatment of wool/polyester blended fabrics to enhance titanium dioxide nanoparticle adsorption and self-cleaning properties Type de document : texte imprimé Auteurs : Majid Montazer, Auteur ; Samira Seifollahzadeh, Auteur Année de publication : 2011 Article en page(s) : p. 322-327 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Adsorption
Dioxyde de titane
Fibres polyesters
Laine
Nanoparticules
Textiles et tissus auto-nettoyantsIndex. décimale : 667.3 Teinture et impression des tissus Résumé : This research aims to enhance the self-cleaning properties of fibre-blended fabric using surface pretreatment prior to the application of titanium dioxide nanoparticles. To this end, the polyester/wool fabric was modified, in that the wool fibres were oxidised with potassium permanganate and the polyester fibres were hydrolysed with lipase before nano processing. Butane tetracarboxylic acid was also used to enhance the adsorption of the nanoparticles and also to stabilise them on the fabric surface. The self-cleaning properties of the fabric were examined through staining of the fabric with CI Basic Blue 9 and then discolouring by exposing to ultraviolet and daylight irradiation. Some other properties of the treated fabrics, such as water drop absorption, crease recovery angle and bending were investigated and are discussed in detail. The colour changes of different samples indicated an appropriate discoloration on the titanium dioxide-treated fabrics after ultraviolet and daylight irradiation. Overall, the surface pretreatment of the wool and polyester fibres improved the self-cleaning properties of the fabric significantly. Note de contenu : EXPERIMENTAL : Materials - Preparation of nano titanium dioxide dispersion and fabric treatment - Characterisation techniques
RESULTS AND DISCUSSION : Scanning electorn microscopy and energy dispersive X-ray analysis - Water absorbance, crease recovery angle bending length - Self-cleaning measurements - Washing fastnessDOI : 10.1111/j.1478-4408.2011.00316.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2011.00316.x/pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=12176
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Code-barres Cote Support Localisation Section Disponibilité 13324 - Périodique Bibliothèque principale Documentaires Disponible Broadband luminescence and emission enhancement / Yi-Feng Sun in COLORATION TECHNOLOGY, Vol. 127, N° 5 (2011)
[article]
Titre : Broadband luminescence and emission enhancement Type de document : texte imprimé Auteurs : Yi-Feng Sun, Auteur ; Shu-Hong Xu, Auteur ; Zhi-Yong Chen, Auteur ; Wen-Long Pan, Auteur ; Hua-Can Song, Auteur ; Jiang-Han Chen, Auteur Année de publication : 2011 Article en page(s) : p. 328-334 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Coumarine La coumarine est une substance naturelle organique aromatique connue dans la nomenclature internationale comme 2H-1-benzopyrane-2-one, tanin qui peut être considéré en première approximation comme une lactone de l’acide 2-hydroxy-Z-cinnamique. Son odeur de foin fraîchement coupé a attiré l'attention des parfumeurs sur elle dès le XIXe siècle.
Habituellement, la coumarine simple se trouve sous forme liée à un sucre qui la retient dans l'eau des vacuoles des cellules végétales : pour qu'elle soit émise, elle doit être séparée du sucre et subir une oxydation par l'oxygène de l'air pour donner la forme volatile, plus odorante.
Le même terme de coumarine désigne aussi la classe des composés phénoliques dérivés de cette dernière molécule, la 2H-1-benzopyrane-2-one. Ces composés possèdent des hydroxyles phénoliques qui peuvent être méthylés ou être engagés dans des liaisons hétérosides, constituant alors la génine. Plus d’un millier de coumarines naturelles ont été décrites. Elles sont très largement distribuées dans le règne végétal.
La coumarine utilisée en parfumerie (Shalimar de Guerlain ou Contradiction de Calvin Klein) ou pour aromatiser les aliments ou les boissons est surtout obtenue par synthèse.
Prise en excès, elle peut provoquer des effets secondaires, tels que nausées, vomissements, vertiges et maux de tête et, alors qu'elle est normalement dégradée par le foie, induire une toxicité hépatique
La coumarine est présente dans divers végétaux où elle participe à leur défense contre les herbivores.
La coumarine simple est le composé responsable de l'odeur de foin coupé. (Wikipedia)
Fluorène
Fourier, Spectroscopie infrarouge à transformée de
Photoluminescence
Quinoléine
Spectrométrie de masse
Spectrophotométrie UV-Visible
Spectroscopie de la résonance magnétique nucléaireIndex. décimale : 667.3 Teinture et impression des tissus Résumé : Three novel quinoline– and fluorene–coumarin hybrids were prepared and characterised by Fourier Transform–infrared spectroscopy, proton and carbon nuclear magnetic resonance spectroscopy, mass spectrometry, elemental analysis and ultraviolet–visible spectrophotometry. Their photoluminescence properties were investigated. All of these hybrid molecules exhibited a broadband emission from ca. 450 to 800 nm when excited by a 325 nm helium–cadmium laser at room temperature. Importantly, the fluorene–coumarin hybrid shows a very bright red emission at ca. 650 nm and displays up to a 10-fold increase in fluorescence emission intensity, as compared with the other samples. The experimental results confirm that remarkable enhancements in the fluorescence emission intensity can be obtained by introducing a fluorene group into the azo-bridged coumarin-based ?-conjugated framework. The geometry structures and frontier orbitals are calculated by the ab initio Hartree–Fock method. Note de contenu : EXPERIMENTAL : General - Synthesis of the coumarin-based hybrids
RESULTS AND DISCUSSION : Synthesis - UV-vis absorption spectra - Photoluminescence spectra - Quantum chemical calculationsDOI : 10.1111/j.1478-4408.2011.00317.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2011.00317.x/pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=12184
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Code-barres Cote Support Localisation Section Disponibilité 13324 - Périodique Bibliothèque principale Documentaires Disponible Synthesis and characterisation of microencapsulated 7-alkyloxy-4-trifluoromethylcoumarin dyes / Yixin Xu in COLORATION TECHNOLOGY, Vol. 127, N° 5 (2011)
[article]
Titre : Synthesis and characterisation of microencapsulated 7-alkyloxy-4-trifluoromethylcoumarin dyes Type de document : texte imprimé Auteurs : Yixin Xu, Auteur ; Yi Zhong, Auteur ; Jinxing Li, Auteur ; Li Cai, Auteur ; Hongqi Li, Auteur Année de publication : 2011 Article en page(s) : p. 335-339 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Caractérisation
Colorants -- Synthèse
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).
Coumarine -- Composés
Encapsulation
Formaldéhyde
Fourier, Spectroscopie infrarouge à transformée de
MélamineLa mélamine, de nom chimique 1,3,5-triazine-2,4,6-triamine, est parfois dénommée cyanuramide ou cyanurotriamine. Sa formule brute est C3H6N6.
Les "résines mélamine-formaldéhyde" ou "mélamine-formol" (sigle MF) sont appelées "mélamine" dans le langage courant. Elles font partie de la famille des aminoplastes qui regroupe des résines thermodurcissables aminées, issues d'un comonomère tel l'urée ou la mélamine, parfois le thiocarbamide, le cyanamide hydrogène ou le dicyandiamide ; le second comonomère étant le formaldéhyde.
Spectrométrie de masse
Spectroscopie de la résonance magnétique nucléaire
Teinture -- Fibres textilesIndex. décimale : 667.3 Teinture et impression des tissus Résumé : Five new 7-alkyloxy-4-trifluoromethylcoumarin fluorescent dyes were synthesised using the Pechmann and Williamson etherification reactions. The structures of these coumarin dyes were characterised by Fourier Transform–infrared, proton and carbon nuclear magnetic resonance and mass spectra. One of the new coumarin compounds, 7-isopropyloxy-4-trifluoromethylcoumarin, was microencapsulated with melamine–formaldehyde as the shell material by in situ polymerisation. The microcapsules were characterised in terms of Fourier Transform–infrared spectrum, particle size distribution and scanning electron microscopy morphology. The cotton fabric finished with the microencapsulated coumarin dye showed strong fluorescence under ultraviolet light. Note de contenu : EXPERIMENTAL : Materials - Equipment - Synthesis of 7-hydroxy-4-trifluoromethylcoumarin - Synthesis of 7-isopropyloxy-4-trifluoromethylcoumarin - Synthesis of 7-n-butyloxy-4-trifluoromethylcoumarin - Synthesis of 7-n-dodecyloxy-4-trifluoromethylcoumarin - Synthesis of 7-allyloxy-4-trifluoromethylcoumarin - Synthesis of 7-propargyloxy-4-trifluoromethylcoumarin - Preparation of the microcapsules - Coating and dyeing process
RESULTS AND DISCUSSION : Synthesis and characterisation of 7-alkyloxy-4-trifluoromethylcoumarin 2a-e - Characterisation of the microcapsules - Shape and size distribution of the microcapsules - Dyeing application of the microencapsulated coumarin dyeDOI : 10.1111/j.1478-4408.2011.00319.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2011.00319.x/pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=12185
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Code-barres Cote Support Localisation Section Disponibilité 13324 - Périodique Bibliothèque principale Documentaires Disponible Optical whitening of cationised cotton : effect on whiteness and whiteness tint / Mustafa Tutak in COLORATION TECHNOLOGY, Vol. 127, N° 5 (2011)
[article]
Titre : Optical whitening of cationised cotton : effect on whiteness and whiteness tint Type de document : texte imprimé Auteurs : Mustafa Tutak, Auteur Année de publication : 2011 Article en page(s) : p. 340-345 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Agents de blanchiment
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).Tags : 'Blanchiment coton' 'Index blanchiment' optique' Cationisation Index. décimale : 667.3 Teinture et impression des tissus Résumé : In this study, the effect of cationisation on optical whitening was examined. For this purpose, the whiteness index and whiteness tint of optically whitened pre-cationised knitted cotton fabrics were analysed. The cationisation and optical whitening processes were carried out under different concentration levels, using the exhaustion method. The whiteness index and whiteness tint were calculated after colour measurements were taken. The experimental results were also analysed statistically using ANOVA. The whiteness index obtained from cationised fabric was lower than that of non-cationised fabrics. While the whiteness tint of cationised cotton fabric had a blue to greenish nuance, the non-cationised fabric had a reddish nuance. Note de contenu : - Fabric and chemicals
- Cationisation and optical whitening process
- Colour measurements
- Statistical model
DOI : 10.1111/j.1478-4408.2011.00320.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2011.00320.x/pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=12186
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Code-barres Cote Support Localisation Section Disponibilité 13324 - Périodique Bibliothèque principale Documentaires Disponible Dyeing of cotton yarn with the aqueous extract of the leaves of Eupatorium odoratum L. in Thailand and associated extract toxicity studies / Montra Chairat in COLORATION TECHNOLOGY, Vol. 127, N° 5 (2011)
[article]
Titre : Dyeing of cotton yarn with the aqueous extract of the leaves of Eupatorium odoratum L. in Thailand and associated extract toxicity studies Type de document : texte imprimé Auteurs : Montra Chairat, Auteur ; Udomsak Darumas, Auteur ; John B. Bremner, Auteur ; Phuwadol Bangrak, Auteur Année de publication : 2011 Article en page(s) : p. 346-353 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Colorants -- Toxicologie
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).
Eupatorium odoratum
Fourier, Spectroscopie infrarouge à transformée de
Pigments végétaux
Spectroscopie de réflectance
Teinture -- Fibres textiles
Tests de toxicitéIndex. décimale : 667.3 Teinture et impression des tissus Résumé : Flavonoid constituents from the aqueous extract of the leaves of Eupatorium odoratum, an invasive weed in Thailand, have potential use as dyestuffs for cotton dyeing. It was found that cotton yarn, which was pretreated with a chitosan solution (with and without a crosslinking glyoxal solution), followed by dyeing with E. odoratum extract in the presence of the inorganic mordant, alum, provided better depth of shade (K/S) and also gave better fastness to light and washing than the untreated cotton yarn. Pretreated cotton yarn with the biomordant solution from Memecylon scutellatum leaves gave relatively poor light and wash fastness of the resultant dyed cotton in the presence of alum. From the toxicity studies, the aqueous extract of the leaves of E. odoratum before and after dyeing showed a high toxicity level to the earthworm (Diplocardia communis) and the guppy fish (Poecilia reticulate). Therefore, it is strongly suggested that E. odoratum aqueous extract after dyeing should be significantly diluted before discharged into the environment. Note de contenu : EXPERIMENTAL : Materials and chemicals - Cotton pretreatment with chitosan solution - Cotton pretreatment with an aqueous leaf extract of M. scutellatum - Aqueous extract of the leaves of E. odoratum and stock solution preparation for toxicity testing - Attenuated total reflectance (ATR) Fourier Transform-infrared analysis (FTIR) - Colour measurement and fastness testing - Toxicity study.
RESULTS AND DISCUSSION : Effect of dyeing temperature - ATF-FTIR spectroscopy investigation of a possible mechanism for glyoxal crosslinking to chitosan fibre - Colour hue and fastness properties of dyed cotton with aqueous leaf extract of E. odoratum - Aquatic animal toxicity - Terrestrial animal toxicity.DOI : 10.1111/j.1478-4408.2011.00321.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2011.00321.x/pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=12187
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Code-barres Cote Support Localisation Section Disponibilité 13324 - Périodique Bibliothèque principale Documentaires Disponible
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Code-barres | Cote | Support | Localisation | Section | Disponibilité |
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13324 | - | Périodique | Bibliothèque principale | Documentaires | Disponible |