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Light-harvesting and light-protecting pigments in simple life forms / Timothy L. Dawson in COLORATION TECHNOLOGY, Vol. 123, N° 3 (2007)  

[article]  inCOLORATION TECHNOLOGY > Vol. 123, N° 3 (2007) . - p. 129-142 Titre : Light-harvesting and light-protecting pigments in simple life forms Type de document : texte imprimé Auteurs : Timothy L. Dawson, Auteur Année de publication : 2007 Article en page(s) : p. 129-142 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.3 Teinture et impression des tissus Résumé : Photosynthesis is the basis of life on the earth and the development of the vast range of simple organisms existing today can often be traced back to the earliest geological times. Most life forms depend directly or indirectly on the synthetic processes which harvest the sun's energy, utilising a range of pigments such as the chlorophylls and carotenoids, which not only determine the colour of each organism, but often also serve a protective role against the adverse effects of ultraviolet radiation. Recent research has elucidated the detailed photochemical mechanisms and the complex nature of the light-harvesting pigment–protein complexes. This review covers algae and fungi and their symbiotic forms in lichens and corals, particularly with respect to the pigments they synthesise and the commercial uses to which these and other metabolites have been (and may in the future be) put. DOI : 10.1111/j.1478-4408.2007.00076.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2007.00076.x/pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3536 [article]

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Review of the process development aspects of electrochemical dyeing: its impact and commercial applications / Manickam Anbu Kulandainathan in COLORATION TECHNOLOGY, Vol. 123, N° 3 (2007)  

[article]  inCOLORATION TECHNOLOGY > Vol. 123, N° 3 (2007) . - p. 143-151 Titre : Review of the process development aspects of electrochemical dyeing: its impact and commercial applications Type de document : texte imprimé Auteurs : Manickam Anbu Kulandainathan, Auteur ; Kiran Patil, Auteur ; A. Muthukumaran, Auteur ; R. B. Chavan, Auteur Année de publication : 2007 Article en page(s) : p. 143-151 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.3 Teinture et impression des tissus Résumé : This review discusses the recent progress made in both direct and indirect electrochemical dyeing processes and the parameters that control the dyeing process. DOI : 10.1111/j.1478-4408.2007.00082.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2007.00082.x/pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3537 [article]

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One-bath dyeing of polyester/cotton with disperse and bis-3-carboxypyridinium-s-triazine reactive dyes. Part 1 : Factors limiting production of heavy shades / John A. Bone in COLORATION TECHNOLOGY, Vol. 123, N° 3 (2007)  

[article]  inCOLORATION TECHNOLOGY > Vol. 123, N° 3 (2007) . - p. 152-162 Titre : One-bath dyeing of polyester/cotton with disperse and bis-3-carboxypyridinium-s-triazine reactive dyes. Part 1 : Factors limiting production of heavy shades Type de document : texte imprimé Auteurs : John A. Bone, Auteur ; John A. Taylor, Auteur ; Duncan A. S. Phillips, Auteur Année de publication : 2007 Article en page(s) : p. 152-162 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.3 Teinture et impression des tissus Résumé : Over the last 20 years, selected disperse dyes and bis-3-carboxypyridinium-s-triazine reactive dyes have been widely promoted for the exhaust dyeing of polyester/cotton blends in a one-bath-one-stage ('all-in') process under neutral conditions. However, despite the time and energy savings afforded by this elegant dyeing process, there is a belief in the dyeing industry that economical production is limited to pale and medium depths of shade. In this paper, the two dye classes (disperse dyes on polyester and bis-3-carboxypyridinium-s-triazine reactive dyes on cotton) have been investigated to understand why heavy depths of shade cannot readily be obtained economically using this process. DOI : 10.1111/j.1478-4408.2007.00077.x En ligne : onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2007.00077.x/pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3538 [article]

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Protection of lyocell against fibrillation. Part 3 : Investigation of the durability of crosslinks formed with 4,6-(p-beta-sulphatoethylsulphonyl)-anilino-1,3, 5-triazin-2(1H)-one on lyocell fibre / I. Bates in COLORATION TECHNOLOGY, Vol. 123, N° 3 (2007)  

[article]  inCOLORATION TECHNOLOGY > Vol. 123, N° 3 (2007) . - p. 163-169 Titre : Protection of lyocell against fibrillation. Part 3 : Investigation of the durability of crosslinks formed with 4,6-(p-beta-sulphatoethylsulphonyl)-anilino-1,3, 5-triazin-2(1H)-one on lyocell fibre Type de document : texte imprimé Auteurs : I. Bates, Auteur ; A. H. M. Renfrew, Auteur ; Duncan A. S. Phillips, Auteur Année de publication : 2007 Article en page(s) : p. 163-169 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.3 Teinture et impression des tissus Résumé : Application of 4,6-(p-béta-sulphatoethylsulphonyl)-anilino-1,3,5-triazin-2(1H)-one (Hydroxy-XLC) to lyocell fibre produced two types of crosslinking, one essentially permanent and the other transitory, in the presence of weak alkali. Permanent or stable crosslinking arose from covalent bonding between the fibre and vinyl sulphone reactive groups. The transitory or unstable crosslinking was due to two agent molecules forming an intermolecular ether linkage, followed by crosslinking via the residual vinyl sulphone reactive groups. On subsequent mild alkali treatment, the ether bond was cleaved, resulting in a loss of wet abrasion resistance (Nass–Scheuer–Festigkeit, NSF), without any significant loss of agent from the fibre. Further treatment with mild alkali partially restored the NSF value. The formation of ethers is a general reaction of vinyl sulphones in alkaline medium, and for Hydroxy-XLC, this side reaction exerts a negative influence on the compound's suitability as a crosslinking agent. DOI : 10.1111/j.1478-4408.2007.00084.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2007.00084.x/pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3539 [article]

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Partitioning colour differences into dyers'components : the 'DBH'model / Ken J. Smith in COLORATION TECHNOLOGY, Vol. 123, N° 3 (2007)  

[article]  inCOLORATION TECHNOLOGY > Vol. 123, N° 3 (2007) . - p. 170-177 Titre : Partitioning colour differences into dyers'components : the 'DBH'model Type de document : texte imprimé Auteurs : Ken J. Smith, Auteur Année de publication : 2007 Article en page(s) : p. 170-177 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.3 Teinture et impression des tissus Résumé : Mathematics are given for a method of converting the cylindrical components of colour differences reported by colour measurement systems (differences in lightness, chroma and hue) into components that are correlates of those naturally used by dyers during visual assessment (differences in depth, brightness and hue). The history of the development of the method is recorded. The method has been in successful routine use by many organisations throughout the dye-making, dyeing and textile-finishing industries for more than 30 years but its mathematics have hitherto remained unpublished. DOI : 10.1111/j.1478-4408.2007.00075.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2007.00075.x/pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3540 [article]

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Triazinylamino-alkylphosphonate reactive dyes for cellulosic fibres / Estelle L. Gillingham in COLORATION TECHNOLOGY, Vol. 123, N° 3 (2007)  

[article]  inCOLORATION TECHNOLOGY > Vol. 123, N° 3 (2007) . - p. 178-183 Titre : Triazinylamino-alkylphosphonate reactive dyes for cellulosic fibres Type de document : texte imprimé Auteurs : Estelle L. Gillingham, Auteur ; Kawee srikulkit, Auteur ; Asfia Nabi, Auteur ; David M. Lewis, Auteur Année de publication : 2007 Article en page(s) : p. 178-183 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.3 Teinture et impression des tissus Résumé : A bifunctional reactive bis-phosphonoalkylaminotriazine dye was synthesised by condensing 2 mol of aminoethylphosphonic acid with the commercially available bis-monochloro-s-triazinyl dye, CI Reactive Red 120. A similar but much lower molecular weight dye was prepared by condensing the commercially available dichloro-s-triazine dye, Procion Red MX 8B, with aminomethylphosphonate. A model aryl-phosphonate dye was also prepared by diazotising m-aminobenzene-phosphonic acid and coupling the diazonium salt to R-salt. These dyes were isolated as their free acids and then converted to their ammonium salts. Pad liquors containing dye, cyanamide and ammonium dihydrogen phosphate were applied to cotton fabric. In the case of the bis-phosphonoethylamino-s-triazine dye, very high dye–fibre fixation values (>90%) were achieved using a pad–batch–bake procedure; for the Procion T model dye, the comparative maximum fixation was only modest. In the absence of cyanamide, no fixation could be obtained for the arylphosphonate dye but both bis-phosphonoalkylaminotriazine dyes gave significant fixation. DOI : 10.1111/j.1478-4408.2007.00078.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2007.00078.x/pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3541 [article]

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Decolorisation optimisation of a monoazo disperse dye with Bacillus firmus. Identification of a degradation product / Sucharita Arora in COLORATION TECHNOLOGY, Vol. 123, N° 3 (2007)  

[article]  inCOLORATION TECHNOLOGY > Vol. 123, N° 3 (2007) . - p. 184-190 Titre : Decolorisation optimisation of a monoazo disperse dye with Bacillus firmus. Identification of a degradation product Type de document : texte imprimé Auteurs : Sucharita Arora, Auteur ; Harvinder Singh Saini, Auteur ; Kamaljit Singh, Auteur Année de publication : 2007 Article en page(s) : p. 184-190 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.3 Teinture et impression des tissus Résumé : Decolorisation of a heterocyclic monoazo red disperse dye by a bacterial strain Bacillus firmus isolated from local sewage and grown in mineral salt medium (MSM) was investigated. The effect of nutritional as well as environmental factors on the decolorisation efficiency was studied. Aerobic shaking (100 rpm) of a monoazo disperse dye, at pH 6.0, with the strain cultivated after 48 h, resulted in extensive (95–98%) decolorisation at 35 °C, whereas under anoxic conditions, decolorisation was only 75%. The nutrients sucrose (0.125% w/v), ammonium sulphate (0.05% w/v) and yeast extract (0.0025% w/v) have been found to be effective in decolorisation of the dye. One of the degradation products could be isolated and characterised using chromatographic and spectroscopic techniques. DOI : 10.1111/j.1478-4408.2007.00083.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2007.00083.x/pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3542 [article]

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Studies on dyeing method and dyeing properties of a sulphur black dye containing carboxylic acid groups on cotton / Jinqiu Xiao in COLORATION TECHNOLOGY, Vol. 123, N° 3 (2007)  

[article]  inCOLORATION TECHNOLOGY > Vol. 123, N° 3 (2007) . - p. 191-196 Titre : Studies on dyeing method and dyeing properties of a sulphur black dye containing carboxylic acid groups on cotton Type de document : texte imprimé Auteurs : Jinqiu Xiao, Auteur ; Shufen Zhang, Auteur ; Jinzong Yang, Auteur Année de publication : 2007 Article en page(s) : p. 191-196 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.3 Teinture et impression des tissus Résumé : In this study the dyeing method of a sulphur black dye containing carboxylic acid groups on cotton was investigated. A dip–pad–bake dyeing process was applied and dyeing conditions were examined in detail. Thermal gravimetric analysis was used to determine both the baking temperature and the dehydrant selection. Fastness properties of the sulphur black dye containing carboxylic acid groups were tested. It is concluded that the sulphur black dye not only has good dyeing performance, but also possesses good fastness properties. DOI : 10.1111/j.1478-4408.2007.00081.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2007.00081.x/pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3543 [article]

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Physico-chemical treatment of indigo dye wastewater / B. Manu in COLORATION TECHNOLOGY, Vol. 123, N° 3 (2007)  

[article]  inCOLORATION TECHNOLOGY > Vol. 123, N° 3 (2007) . - p. 197-202 Titre : Physico-chemical treatment of indigo dye wastewater Type de document : texte imprimé Auteurs : B. Manu, Auteur Année de publication : 2007 Article en page(s) : p. 197-202 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.3 Teinture et impression des tissus Résumé : In the present study, colour removal and chemical oxygen demand removal from indigo dye wastewater have been evaluated using various coagulants/flocculants. Laboratory-scale experiments were conducted using chemical coagulants–flocculants on synthetic as well as actual indigo dye wastewater and under ambient liquid temperature. Up to 99% colour removal was observed during treatment of synthetic indigo dye effluent with FeSO4, alum, polyelectrolyte and lime. Colour removal efficiencies of up to 97%, 97% and 95% were observed when denim plant wastewater (equalisation tank) was treated with alum, lime and FeSO4 at dosages of 2, 2.5 and 2.5 g/l, respectively. Up to 95%, 94% and 87% colour removal efficiencies were observed when denim plant (dyebath) wastewater was treated with alum, lime and FeSO4 at dosages of 225, 1000 and 225 mg/l, respectively. DOI : 10.1111/j.1478-4408.2007.00080.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2007.00080.x/pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3544 [article]

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Decolorisation of CI Reactive Black 8 by zero-valent iron powder with/without ultrasonic irradiation / Hui Zhang in COLORATION TECHNOLOGY, Vol. 123, N° 3 (2007)  

[article]  inCOLORATION TECHNOLOGY > Vol. 123, N° 3 (2007) . - p. 203-208 Titre : Decolorisation of CI Reactive Black 8 by zero-valent iron powder with/without ultrasonic irradiation Type de document : texte imprimé Auteurs : Hui Zhang, Auteur ; Ming Jiang, Auteur ; Zhengqi Wang, Auteur ; Feng Wu, Auteur Année de publication : 2007 Article en page(s) : p. 203-208 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.3 Teinture et impression des tissus Résumé : The effects of pH, initial dye concentration and temperature on the decolorisation of CI Reactive Black 8 by zero-valent iron powder (Fe0) with or without ultrasonic irradiation were investigated. It was verified that the presence of ultrasonic irradiation enhanced the decolorisation of CI Reactive Black 8. The decolorisation efficiency decreased with increasing pH, but increased with increasing iron addition and temperature in both systems. Initial dye concentration had little effect on the decolorisation efficiency in either system. DOI : 10.1111/j.1478-4408.2007.00079.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2007.00079.x/pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3545 [article]

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