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Study on the effect of different dyeing systems on the interaction of multi-component reactive dyes by Raman spectroscopy / Yamin Dai in COLORATION TECHNOLOGY, Vol. 137, N° 5 (10/2021)
[article]
Titre : Study on the effect of different dyeing systems on the interaction of multi-component reactive dyes by Raman spectroscopy Type de document : texte imprimé Auteurs : Yamin Dai, Auteur ; Hong Xu, Auteur ; Yi Zhong, Auteur ; Linping Zhang, Auteur ; Xiaofeng Sui, Auteur ; Xueling Feng, Auteur ; Bijia Wang, Auteur ; Zhiping Mao, Auteur Année de publication : 2021 Article en page(s) : p. 520-529 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Bleu (couleur)
Colorants -- Adsorption
Colorants réactifs
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).
Essais (technologie)
Jaune
Rouge (couleur)
Spectroscopie Raman
Teinture -- Fibres textilesIndex. décimale : 667.3 Teinture et impression des tissus Résumé : The interaction of dye molecules in different adsorption systems is diverse, which affects the adsorption process. In this work, the real-time adsorption process of CI Reactive Red 195 (RR195), CI Reactive Yellow 145 (RY145), and CI Reactive Blue 194 (RB194) in the actual dyeing process have been studied on cotton fabric by Raman spectroscopy. Three single, three binary, and one ternary system have been investigated at different temperatures (40, 50, 60, and 80°C). The equilibrium dye-uptake of RR195 and RY145 on cotton fabric decreased with the addition of other components, while that of RB194 remained unchanged. The temperature has little effect on the dyeing of cotton fabric with the RR195/RY145 system. The RR195/RB194 system is more suitable for high-temperature dyeing. RY145 is less affected by temperature below 60°C while dyeing at 80°C is greatly affected by temperature in the four systems. RB194 with a higher substantivity to the cotton fibre is less affected by temperature in the four systems. The batch adsorption rate data for the seven systems have been analysed based on pseudo-second-order kinetics. The results showed that the increase in temperature can accelerate the dyeing rate and time for dye adsorption to reach equilibrium. Activation parameters revealed the potential barrier that dyes need to overcome when dyeing cotton fabrics in different systems. In the actual combination dyeing process, the analysis of each component process can optimise the dye formulation and improve the dye utilisation. Note de contenu : - MATERIALS AND METHODS : Materials and chemicals - Raman spectroscopy - Adsorption process test
- RESULTS AND DISCUSSION : Adsorption process - Effect of different systems - Effect of temperature - Adsorption kinetics - Activation parameters
- Table 1 : Initial system conditions for the adsorption process
- Table 2 : The Arrhenius plot for RR195, RY145, and RB194 on cotton fabric at different temperatures in four adsorption systemsDOI : https://doi.org/10.1111/cote.12549 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12549 Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36509
in COLORATION TECHNOLOGY > Vol. 137, N° 5 (10/2021) . - p. 520-529[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 22951 - Périodique Bibliothèque principale Documentaires Disponible Temperature tolerant blue pigment / Mas Subramanian in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 205, N° 4610 (07/2015)
[article]
Titre : Temperature tolerant blue pigment Type de document : texte imprimé Auteurs : Mas Subramanian, Auteur Année de publication : 2015 Article en page(s) : p. 30-31 Langues : Anglais (eng) Catégories : Bleu (couleur)
Pigments inorganiques
Structure cristalline (solide)Index. décimale : 667.2 Colorants et pigments Résumé : A blue pigment, discovered 'accidentally' by Oregan State University (OSU) chemists in 2009, is now reaching the marketplace, where it will be used in a wide range of coatings and plastics. Note de contenu : - The discover
- Unique crystal structure
- Commercial possibilitiesEn ligne : https://drive.google.com/file/d/1TMfdOmN5rNfk4gWI50OvUARmhmrnRFCI/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=24889
in POLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 205, N° 4610 (07/2015) . - p. 30-31[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 17372 - Périodique Bibliothèque principale Documentaires Disponible The evaluation of new printed standards for colour fastness to light / S. L. Pugh in SURFACE COATINGS INTERNATIONAL. PART B : COATINGS TRANSACTIONS, Vol. 87, B1 (02/2004)
[article]
Titre : The evaluation of new printed standards for colour fastness to light Type de document : texte imprimé Auteurs : S. L. Pugh, Auteur Année de publication : 2004 Article en page(s) : p. 27-31 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Bleu (couleur)
Encre d'imprimerie
Encre en phase aqueuse
Irradiation
Laine
Papier et carton couché
Photostabilité
Solidité de la couleur
Teinture -- Fibres textilesIndex. décimale : 667.9 Revêtements et enduits Résumé : The development of new standards for the evaluation of lightfastness testing is necessary because some of the current Blue Wool Standards are of limited availability.
A series of water-based printing inks were developed and applied to a carton board substrate. The prints were subjected to lightfastness testing, in accordance with BS EN ISO 105:B02, via an interlaboratory trial. The results of the trial are presented.
The printed specimens faded at an appropriate rate for their designated reference number. Such prints may form suitable materials as a replacement for the current Blue Wool Scale, subject to further testing.Note de contenu : - Table 1 : Irradiant dose required to achieve grey scale rating (GSR) 4 and GSR 3 on each of the pigment-printed ligh-fastness test specimens numbered 2 to 6
- Table 2 : Operational parameters employed by each of the laboratories conducting the ring test on the printed lightfastness test materialsDOI : 10.1007/BF02699561 En ligne : https://link.springer.com/content/pdf/10.1007/BF02699561.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5479
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Code-barres Cote Support Localisation Section Disponibilité 000392 - Périodique Bibliothèque principale Documentaires Disponible The release of the blue biological pigment C-phycocyanin through calcium-aided cytolysis of live Spirulina sp. / Robert W. M. Pott in COLORATION TECHNOLOGY, Vol. 135, N° 1 (02/2019)
[article]
Titre : The release of the blue biological pigment C-phycocyanin through calcium-aided cytolysis of live Spirulina sp. Type de document : texte imprimé Auteurs : Robert W. M. Pott, Auteur Année de publication : 2019 Article en page(s) : p. 17-21 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Bleu (couleur)
Colorants microbiens
PhycocyanineLa phycocyanine (du grec phyco signifiant "algue" et cyanine venant de la couleur "cyan", qui est dérivé du grec "kyanos" et signifie bleu-vert) est l'association de protéines de la famille des phycobiliprotéines, et de pigments hydrosolubles de la photosynthèse, les phycocyanobilines. Toutes les phycobiliprotéines sont solubles dans l'eau et ne peuvent donc exister à l'intérieur d'une membrane, contrairement aux complexes protéines-pigments des végétaux supérieurs, (porteurs de caroténoïdes, et de chlorophylles), mais peuvent s'agréger pour former des complexes collecteurs de lumière, nommés phycobilisomes, qui adhèrent à la membrane thylakoïdale.
La phycocyanine absorbe les lumières orange et rouge, dans des longueurs d'onde plutôt proches de 600 nm (dépendant de son type spécifique), et émet de la fluorescence à environ 650 nm (dépendant aussi de son type). L'allophycocyanine absorbe et émet à des longueurs d'onde plus élevées que la phycocyanine C ou la phycocyanine R.
Les phycocyanines peuvent se trouver dans les Cyanobactéries (appelées auparavant "algues bleu-vert"), les Glaucophytes et les algues rouges.
Les phycobiliprotéines ont des propriétés de fluorescence qui sont utilisées dans la méthode immuno-enzymatique ELISA.
SpirulinesIndex. décimale : 667.2 Colorants et pigments Résumé : C-phycocyanin is a light-harvesting phycobiliprotein found in, amongst other species, the cyanobacterium Spirulina sp. C-phycocyanin is bright blue in colour and can be used as a natural blue colorant for a variety of applications. Various cell disruption methods exist to cause the lysis of the cyanobacterial cells and release of phycocyanin, but these methods have significant drawbacks, such as cost, difficulty in scale-up, bacterial contamination, or risk of degrading the protein. This article outlines an alternative method for cell disruption based on the use of Ca(II), which lyses live Spirulina biomass, releasing phycocyanin at a range of concentrations (0.1–0.8 m) over varying time periods, depending on the conditions. In comparison with other ionic species tested, Ca(II) performed best by a significant margin. Bead milling of biomass was used to quantify the maximum phycocyanin in the biomass, and the greatest was found to be ca. 90% released into solution after 48 h under 0.5 m Ca(II) in a 0.35 m acetate buffer at pH 6. Exposing Spirulina to sodium azide revealed that the mechanism of Ca(II) ion-aided cytolysis is likely based on a metabolically driven process. This study demonstrates a potential processing option for the release of phycocyanin from live Spirulina, paving the way for the development of a novel bioprocess for the industrial production of the biological pigment. Note de contenu : - Cultivation of Spirulina in an airlift reactor
- Quantification of phycocyanin in solution using a spectrophotometer
- Preparation of biomass
- Phycocyanin extraction by bead milling
- Calcium- and other salt-aided phycocyanin release tests
- Sodium azide tests
- Fig. 1 : Process flow diagram of a potential phycocyanin production process
- Fig. 2 : Release of C-phycocyanin (cPC) from Spirulina biomass over time during grinding with 0.1 mm Dakot media in a 0.35 m pH 6 acetate buffer solution
- Fig. 3 : Release of phycocyanin from Spirulina biomass at three time points when exposed to varying Ca(II) concentrations
- Fig. 4 : Release of phycocyanin from Spirulina biomass over time, in 0.35 m pH 6 acetate buffer under various Ca(II) concentrations
- Fig. 5 : % phycocyanin released after 24 h when Spirulina biomass is treated with 0.5 m ions in 0.35 m pH 6 acetate buffer. Error bars represent the standard deviation of three repeats
- Fig. 6 : Release of phycocyanin after 24 h from Spirulina biomass, in 0.35 m pH 6 acetate buffer, under (a) control – no azide, no Ca(II), (b) 0.035% azide with 0.5 m Ca(II) (exposed to light), (c) 0.035% azide with 0.5 m Ca(II) (not exposed to light), (d) 0.5 m Ca(II) without azide, and (e) azide added after cytolysis as in (d). Error bars represent the standard deviation of three repeatsDOI : 10.1111/cote.12373 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12373 Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=31661
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Code-barres Cote Support Localisation Section Disponibilité 20582 - Périodique Bibliothèque principale Documentaires Disponible 20583 - Périodique Bibliothèque principale Documentaires Disponible Titanium dioxide grafted with silane coupling agents and its use in blue light curing ink / Lili Wang in COLORATION TECHNOLOGY, Vol. 136, N° 1 (02/2020)
[article]
Titre : Titanium dioxide grafted with silane coupling agents and its use in blue light curing ink Type de document : texte imprimé Auteurs : Lili Wang, Auteur ; Xiaying Jiang, Auteur ; Chenglong Wang, Auteur ; Yi Huang, Auteur ; Yiding Meng, Auteur ; Jianzhong Shao, Auteur Année de publication : 2020 Article en page(s) : p. 15-22 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Angle de contact
Bleu (couleur)
Caractérisation
Dioxyde de titane
Dispersions et suspensions -- Stabilité
Encre
Encre -- Propriétés mécaniques
Fourier, Spectroscopie infrarouge à transformée de
Granulométrie
Greffage (chimie)
Photoréticulation
Réaction de couplage
Rhéologie
Silanes
ThermogravimétrieIndex. décimale : 667.2 Colorants et pigments Résumé : To improve the properties of titanium dioxide particles and realise their firm anchorage in blue light curing film, three modified titanium dioxide particles were prepared by grafting 3-(trimethoxysilyl)propyl methacrylate, 3-aminopropyltriethoxysilane and hexadecyltrimethoxysilane. The surface changes of titanium dioxide particles after modification were characterised. The dispersion stability, photo-polymerisation, rheological and mechanical properties of modified titanium dioxide blue light curing inks were investigated. Results showed that compared with native titanium dioxide, modified titanium dioxide particles were more appropriate for blue light curing ink. The particle sizes of the three modified titanium dioxide particles became smaller, their surfaces exhibited hydrophobicity, and the viscosity of the modified titanium dioxide inks decreased slightly. Of the three modified titanium dioxide particles, 3-(trimethoxysilyl)propyl methacrylate- and hexadecyltrimethoxysilane-modified titanium dioxide particles exhibited better dispersion stability in blue light curing ink. In particular, 3-(trimethoxysilyl)propyl methacrylate-modified titanium dioxide blue light curing ink showed the best photo-polymerisation and mechanical properties, which indicated the participation of the pigment grafted by double bonds in the blue light curable polymerisation. Using modified titanium dioxide in blue light curing ink, the dry/wet rubbing fastness of the printed fabrics improved. Note de contenu : - EXPERIMENTAL : Materials - Grafting of silane coupling agent onto the surface of titanium dioxide particles - Preparation of blue light curing ink - Preparation of blue light curing - Characterisations
- RESULTS AND DISCUSSION : FT-IR spectroscopy of modified titanium dioxide - Thermogravimetric analysis of modified titanium dioxide - Elemental analysis of modified titanium dioxide - Particle size analysis of modified titanium dioxide - Contact angle analysis of modified titanium dioxide - Dispersion stability of modified titanium dioxide - Rheological porperties of modified titanium dioxide bluelight curing inkDOI : https://doi.org/10.1111/cote.12434 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12434 Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33696
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Code-barres Cote Support Localisation Section Disponibilité 21546 - Périodique Bibliothèque principale Documentaires Disponible La transdisciplinarité ou l'art d'enseigner la chimie du bleu / Florence Boulc'h in L'ACTUALITE CHIMIQUE, N° 374 (05/2013)
PermalinkUnderstanding dispersion of copper phthalocyanine alpha blue pigment in polyethylene masterbatch with the use of wax / Mert Yücetürk in COLORATION TECHNOLOGY, Vol. 136, N° 6 (12/2020)
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