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Colorants. Détermination de la solubilité dans les solvants organiques - Méthodes gravimétrique et photométrique - Norme ISO 7579 / International Organization for Standardization (Genève, Suisse) / Geneve [Switzerland] : International Organization for Standardization (ISO) (2009)
Titre de série : Colorants Titre : Détermination de la solubilité dans les solvants organiques - Méthodes gravimétrique et photométrique - Norme ISO 7579 Type de document : texte imprimé Auteurs : International Organization for Standardization (Genève, Suisse) , Auteur Mention d'édition : 2e édition Editeur : Geneve [Switzerland] : International Organization for Standardization (ISO) Année de publication : 2009 Importance : V-11 p. Présentation : ill. Format : 30 cm Langues : Français (fre) Catégories : Colorants -- Normes
Colorants -- Solubilité
Gravimétrie (chimie analytique)
Photométrie
Solvants organiquesIndex. décimale : 667.2 Colorants et pigments Résumé : La présente Norme internationale spécifie deux méthodes de détermination de la solubilité des colorants dans les solvants organiques. Ces méthodes s'appliquent au colorants qui ne changent pas chimiquement sous l'influence du solvant et qui sont stables et non volatils dans les conditions prescrites de séchage. La méthode gravimétrique est recommandée pour les solvants volatils (point d'ébullition inférieur à 120°C), la méthode photométrique étant recommandée pour les solvants moins volatils (point d'ébullition supérieur à 120°C). Le choix de la méthode appropriée se fait au cas par cas.
Ces méthodes conviennent pour des concentrations comprises entre 1 g et 1000 g de colorant par litre de solvant. Des concentrations supérieures peuvent être utilisées pour autant que la viscosité des solutions d'essai soit telle que la méthode puisse être suivie telle quelle.
Les méthodes ne conviennent pas pour la détermination des matières insolubles dans un colorant.Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=31283 Réservation
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Code-barres Cote Support Localisation Section Disponibilité 20383 ISO 7579 Norme Bibliothèque principale Documentaires Disponible Effect of N,N-diethyl-m-toluamide on the structure and dyeing properties of meta-aramid and para-aramid fibre / Le-Yan Lei in COLORATION TECHNOLOGY, Vol. 130, N° 5 (10/2014)
[article]
Titre : Effect of N,N-diethyl-m-toluamide on the structure and dyeing properties of meta-aramid and para-aramid fibre Type de document : texte imprimé Auteurs : Le-Yan Lei, Auteur ; Ya-Hong Mao, Auteur ; Xiao-Feng Xu, Auteur ; Jin-Qu Zheng, Auteur ; Qing-Kang Zheng, Auteur ; Yu Guan, Auteur ; Xiao-Min Fan, Auteur Année de publication : 2014 Article en page(s) : p. 349-356 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Colorants -- Solubilité
Colorants dispersésCatégorie de colorants très peu solubles dans l'eau, utilisés à l'origine comme colorants pour l'acétate, et qui généralement sont appliqués sous forme de suspensions aqueuses de faible concentration.Les colorants dispersés sont largement utilisés dans la teinture de la plupart des fibres manufacturées, surtout le polyester.
Fibre aramide
Teinture -- Fibres textiles synthétiques
Transition vitreuseIndex. décimale : 667.3 Teinture et impression des tissus Résumé : N,N-Diethyl-m-toluamide has been widely used in the mosquito-repellent finishing of textiles over the past few decades, but the use of N,N-diethyl-m-toluamide as a dye carrier for aramid dyeing with disperse dye has been seldom reported. Meanwhile, the application of aramid fibre in clothing is limited because it is difficult to dye. In this work, the effect of N,N-diethyl-m-toluamide on the dyeing properties of aramid fibre was examined by measuring the percentage disperse dye exhaustion under different conditions. In order to understand the mechanism by which N,N-diethyl-m-toluamide promotes the exhaustion of disperse dye on aramid fibre, the ultraviolet-visible spectrum of the dye and N,N-diethyl-m-toluamide solution, the glass transition temperature, the crystalline structure, and the degree of orientation of aramid fibre treated with N,N-diethyl-m-toluamide were measured by ultraviolet-visible spectrophotometry, differential scanning calorimetry, X-ray diffraction analysis, and velocity-oriented tests respectively. The results indicated that N,N-diethyl-m-toluamide not only could reduce the glass transition temperature and degree of orientation of aramid fibre but could also improve the solubility of disperse dye in aqueous solution, and therefore could enhance the percentage disperse dye uptake on aramid fibre, whereas treatment with N,N-diethyl-m-toluamide showed little effect on the crystalline structure of aramid fibre. The results implied that N,N-diethyl-m-toluamide was beneficial to the diffusion of disperse dye molecules into the amorphous region of aramid fibre under the dyeing conditions, but seldom affected the mechanical properties of aramid fibre. Note de contenu : - EXPERIMENTAL : 1. Materials - 2. Pretreatment - 3. Fibre dyeing - 4. Measurement of dye exhaustion and solubility - 5. Measurement of dye solubility - 6. Differential scanning calorimetry - 7. X-ray diffraction analysis - 8. Measurement of degree of orientation - 9. Measurement of tensile strength
- RESULTS AND DISCUSSION : 1. Effect of dyeing temperature on percentage dye exhaustion - 2. Effect of N,N-diethyl-m-toluamide concentration on percentage dye exhaustion - 3. Effect of dyeing time on percentage dye exhaustion - 4. Effect of disperse dye concentration on percentage dye exhaustion - 5. Effect of N,N-diethyl-m-toluamide on the solubility of the disperse dye - 6. Effect of N,N-diethyl-m-toluamide on the glass transition temperature of aramid fibre - 7. Effect of N,N-diethyl-m-toluamide on the crystalline structure of aramid fibre - 8. Effect of N,N-diethyl-m-toluamide on the orientation of poly(p-phenylene terephtalamide) fibre - 9. Effect of N,N-diethyl-m-toluamide on the mechanical properties of aramid fibreDOI : 10.1111/cote.12106 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12106 Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=22073
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Code-barres Cote Support Localisation Section Disponibilité 16561 - Périodique Bibliothèque principale Documentaires Disponible Effects of the side chain density of polycarboxylate dispersants on dye dispersion properties / Hamid Gharanjig in COLORATION TECHNOLOGY, Vol. 135, N° 2 (04/2019)
[article]
Titre : Effects of the side chain density of polycarboxylate dispersants on dye dispersion properties Type de document : texte imprimé Auteurs : Hamid Gharanjig, Auteur ; Kamaladin Gharanjig, Auteur ; Alireza Khosravi, Auteur Année de publication : 2019 Article en page(s) : p. 160-168 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Agents dispersants (chimie)
Agents dispersants (chimie) -- Synthèse
Caractérisation
Colorants -- Solubilité
Dispersions et suspensions
Dispersions et suspensions -- Stabilité
Granulométrie
Polycarboxylates
Polyesters
Polymères en émulsion
Polymères ramifiés
Spectrophotométrie
Stabilité thermique
Teinture -- Fibres textiles synthétiques
TurbidimétrieLa turbidimétrie est la mesure du degré de turbidité d'une suspension. Elle est déterminée grâce à un système optique, en général un spectrophotomètre classique, qui mesure la diminution, due à l'absorbance, de l'intensité d'un rayon lumineux de longueur d'onde connue traversant la suspension. La turbidimétrie est utilisée en complément à la néphélométrie qui se base plutôt sur la diminution de l'intensité par diffusion de la lumière.Index. décimale : 667.2 Colorants et pigments Résumé : Comb‐like polycarboxylates were synthesised by copolymerisation of methacrylic acid and nonylphenol polyethylene glycol methacrylate ester, and can be used as dye dispersants. In order to achieve good dispersive ability, three polycarboxylates were synthesised, each having a different side chain density. The side chain density of polymers was controlled by different ratios of monomers in the copolymerisation process. Acidic polymers were neutralised using sodium hydroxide. These polymers exhibit good dispersing performance, such that carboxylate groups are adsorbed onto the dye particle surface and the side chains enable the formation of a thick layer, thus providing the steric hindrance effect. Improvement of dye dissolution in the presence of polycarboxylates was studied. Polymers with a lower side chain density demonstrated a higher dye dissolution in water, which could be as a result of more effective adsorption of dispersant on the dye surface (CI Disperse Blue 79). The dyeing performance of the prepared dye dispersions on polyester was investigated. Spectrophotometric analysis of dyed fabrics using synthesised polycarboxylates demonstrates that there should be an optimum side chain density of polymer in order to control both dye solubility and dispersive ability. The result of turbidimetry and particle size analysis have proven this phenomenon. A comb‐like polycarboxylate with optimum side chain density was a better dye dispersant compared with a commercial sodium naphthalene sulphonate compound, as a result of its better heat stability. Note de contenu : - EXPERIMENTAL : Chemicals and apparatus - Synthesis of dispersants - Solubility of CI Disperse Blue 79 - Optimisation of dispersant concentration - Dye dispersion stability - Measurement of build-up - Investigation of the heat stability of dye dispersions
- RESULTS AND DISCUSSION : Characterisation - Dye solubility - Effect of dispersant concentration on dyeing - Dye dispersion stability - Effect of polycarboxylates on build-up - Effect of polycarboxylates on the heat stability of dye dispersionsDOI : 10.1111/cote.12391 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12391 Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32330
in COLORATION TECHNOLOGY > Vol. 135, N° 2 (04/2019) . - p. 160-168[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 20869 - Périodique Bibliothèque principale Documentaires Disponible A new method to measure the solubility of disperse dyes in water at high temperature / Martin Ferus-Comelo in COLORATION TECHNOLOGY, Vol. 131, N° 4 (08/2015)
[article]
Titre : A new method to measure the solubility of disperse dyes in water at high temperature Type de document : texte imprimé Auteurs : Martin Ferus-Comelo, Auteur Année de publication : 2015 Article en page(s) : p. 269-271 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Colorants -- Solubilité
Colorants dispersésCatégorie de colorants très peu solubles dans l'eau, utilisés à l'origine comme colorants pour l'acétate, et qui généralement sont appliqués sous forme de suspensions aqueuses de faible concentration.Les colorants dispersés sont largement utilisés dans la teinture de la plupart des fibres manufacturées, surtout le polyester.
Eau
Hautes températures
MesureIndex. décimale : 667.3 Teinture et impression des tissus Résumé : This feature article describes a promising technique that can shed new light on the behaviour of one of the most commercially important classes of textile colourant. Disperse dyes are the only industrially significant means of exhaustion dyeing polyester, the highest-volume synthetic textile material. Successful coloration depends upon disperse dye solubility. However, accurate measurement of this parameter at typical operating conditions is not an easy feat. In addition, numerous previous studios examining solubility have net factored in strong influences that will affect real-world disperse dye formulations. These aspects include physical form and the presence of additives. The methodology reported in this Feature article addresses such Shortcomings. It is capable of providing insights into the performance of marketed products under the exact conditions of their application, which has hitherto not been possible. This novel approach allow technologists to compare the impact of subtle differences in variables such as colorant particle size distribution, impurity profile, and dispersant concentration an solubility. In doing so, it could facilitate the design of better-performing and more cost-effective disperse due systems. DOI : 10.1111/cote.12153 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12153 Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=24425
in COLORATION TECHNOLOGY > Vol. 131, N° 4 (08/2015) . - p. 269-271[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 17353 - Périodique Bibliothèque principale Documentaires Disponible Preparation of thermally stable dyes derived from diketopyrrolopyrrole pigment by polymerisation with polyisocyanate binder / Chun Yoon in COLORATION TECHNOLOGY, Vol. 131, N° 1 (02/2015)
[article]
Titre : Preparation of thermally stable dyes derived from diketopyrrolopyrrole pigment by polymerisation with polyisocyanate binder Type de document : texte imprimé Auteurs : Chun Yoon, Auteur ; Hye-Sun Kwon, Auteur ; Jae-Sung Yoo, Auteur ; Hyun-young Lee, Auteur ; Ji-Hye Bae, Auteur ; Jae-Hong Choi, Auteur Année de publication : 2015 Article en page(s) : p. 2-8 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Caractérisation
Colorants -- Solubilité
Colorants -- Synthèse
Pigments organiques
Polyisocyanates
Résines photosensibles
Stabilité thermique
Teinture -- Fibres textilesIndex. décimale : 667.3 Teinture et impression des tissus Résumé : Four thermally stable and solvent soluble dyes were prepared from diketopyrrolopyrrole pigment via an N-alkylation reaction. To improve the thermal stability of the dyes, a hydroxyl functional group that could react with blocked polyisocyanates was introduced into the dyes. The prepared dyes had absorption maxima near 500 nm, and the chromaticity diagrams of all synthesised dyes exhibited smaller x and y values than those of CI Pigment Red 254, indicating that the colour of the synthesised dyes was close to an orange shade. The dyes reacting with blocked polyisocyanates showed extremely high thermal stability compared with analogous dyes not reacting with polyisocyanates. Note de contenu : - EXPERIMENTAL : Materials and instrumentation - Synthesis of dyes - Preparation of a colour filter photoresist - Preparation of a colour filter photoresist without polyisocyanates - Preparation of a colour filter photoresist with polyisocyanates - Preparation of glass sheets - Solubility investigation - Measurement of spectral and chromatic properties - Thermal stability measurement
- RESULTS AND DISCUSSION : Dye synthesis - Dye solubility - Characterisation of spectral properties - Chromatic properties of spin-coated colour filters - Characterisation of the thermal stability of dyesDOI : 10.1111/cote.12119 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12119 Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=22967
in COLORATION TECHNOLOGY > Vol. 131, N° 1 (02/2015) . - p. 2-8[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 16810 - Périodique Bibliothèque principale Documentaires Disponible Solubilisation study of water-insoluble dye in cationic single/dimeric surfactant micelles : effect of headgroup, non-polar tail, and spacer chain in aqueous and salt solution / Shailesh Padasala in COLORATION TECHNOLOGY, Vol. 132, N° 3 (06/2016)
PermalinkSolubility of a reactive disperse dye in supercritical carbon dioxide / Jia-Jie Long in COLORATION TECHNOLOGY, Vol. 128, N° 2 (2012)
PermalinkSolubility prediction of CI Disperse Red 4 and CI Disperse Red 15 in supercritical carbon dioxide based on the back propagation neural network / Jun Yan in COLORATION TECHNOLOGY, Vol. 140, N° 2 (04/2024)
PermalinkSynthesis, characterisation, and study of the photophysical properties of highly stable imidazole-based novel solid-state fluorescent azo colourants / Preetam N. Moolya in COLORATION TECHNOLOGY, Vol. 131, N° 2 (04/2015)
PermalinkSynthesis of quenchers to control the fluorescence of Rhodamine B and improve the contrast ratio of blue filters for LCDs / Hyun-young Lee in COLORATION TECHNOLOGY, Vol. 132, N° 4 (08/2016)
PermalinkSynthesis of yellow pyridonylazo colorants and their application in dye-pigment hybrid colour filters for liquid crystal display / Jong Min Park in COLORATION TECHNOLOGY, Vol. 133, N° 2 (04/2017)
PermalinkThe roles of polymer relaxation phenomena, aqueous dye solubility and the physical properties of water in the mechanism of adsorption of a disperse dye on poly(ethylene terephthalate) fibres : Part 1 polymer relaxation phenomena / Stephen M. Burkinshaw in COLORATION TECHNOLOGY, Vol. 138, N° 5 (10/2022)
PermalinkThe roles of polymer relaxation phenomena, aqueous dye solubility and the physical properties of water in the mechanism of adsorption of a disperse dye on poly(ethylene terephthalate) fibres Part 2 dye solubility / Stephen M. Burkinshaw in COLORATION TECHNOLOGY, Vol. 138, N° 6 (12/2022)
PermalinkThe roles of polymer relaxation phenomena, aqueous dye solubility and the physical properties of water in the mechanism of adsorption of a disperse dye on poly(ethylene terephthalate) fibres : Part 3 physical properties of water and water-derived fibre properties / Stephen M. Burkinshaw in COLORATION TECHNOLOGY, Vol. 139, N° 1 (02/2023)
PermalinkThe roles of polymer relaxation phenomena, aqueous dye solubility and the physical properties of water in the mechanism of adsorption of a disperse dye on poly(ethylene terephthalate) fibres : Part 4 further aspects related to polymer relaxation phenomena / Stephen M. Burkinshaw in COLORATION TECHNOLOGY, Vol. 139, N° 5 (10/2023)
PermalinkUtilisation of Tectona grandis (teak) leaf extracts as natural hair dyes / Natthawadee Tibkawin in COLORATION TECHNOLOGY, Vol. 138, N° 4 (08/2022)
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