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Ouvrages de la bibliothèque en indexation 667.2
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Ruling opacity out of existence / Jitte Flapper in EUROPEAN COATINGS JOURNAL (ECJ), N° 10 (10/2017)
[article]
Titre : Ruling opacity out of existence : Risk of TiO2 re-classification prompts theoretical study of alternatives Type de document : texte imprimé Auteurs : Jitte Flapper, Auteur Année de publication : 2017 Article en page(s) : p. 52-55 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Blanc (couleur)
Dioxyde de titane -- Suppression ou remplacement
Pigments inorganiques
Produits chimiques -- Suppression ou remplacement
Revêtements:PeintureIndex. décimale : 667.2 Colorants et pigments Résumé : The French authorities have proposed classifying TiO2 as carcinogenic, which would mean consumer paints could not contain sufficient amounts to create opacity without labelling. The maximum hiding power of other opacifying substances was evaluated. A very big increase in coating thickness could be required, increasing both raw material and labour costs. Note de contenu : - Scattering properties and alternative pigments
- Calculating scattering and layer thicknesses
- Even the best alternatives have great limitations
- Why there are no viable alternatives to TiO2
- FIGURES : 1. Scattering coefficient (S) of TiO2 as a function of particle diameter as obtained by calculation using Mie theory - 2. Two examples of coatings with insufficient hiding power
- TABLES : 1. Opacifying substances evaluated in this study - 2. Calculated optimal scattering coefficient and relative layer thicknessEn ligne : https://drive.google.com/file/d/1lAz7WXL7tQ7i6Z__yNbrgFEz9Sy6ChmC/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=29234
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 10 (10/2017) . - p. 52-55[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 19271 - Périodique Bibliothèque principale Documentaires Disponible
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Titre : Seeing red : Colour space and potential in hematites Type de document : texte imprimé Auteurs : Larissa Schaufler, Auteur ; Christine Kathrein, Auteur ; Kai Bütje, Auteur ; Peter Köhler, Auteur ; Carsten Rosenhahn, Auteur Année de publication : 2019 Article en page(s) : p. 132-137 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Colorimétrie
Hématite
Oxyde de fer
Pigments métalliques
Rouge (couleur)
Spectroscopie d'absorptionIndex. décimale : 667.2 Colorants et pigments Résumé : We examined in detail how different colour nuances come about and where the coloristic potentials and limits are for iron oxide red pigments. First, the complex electronic structure of α-Fe2O3 was derived as an illustrative model and visuallised by the absorption spectrum of a hematite single crystal. In the case of the almost isometric hematite red pigments, the specific variation in particle size was used to explain the reasons for the changes in hue by means of the absorption spectra, with their characteristic values. Note de contenu : - Colour changes with particle size variation
- Absorption spectra and spectroscopic parameters
- Correlating spectroscopic parameters with colour values
- The colour space of hematite red pigments : potential and limits
- Fig. 1 : Electronic structure (a) and single crystal absorption spectrum (b) of hematite
- Fig. 2 : Colour values of hematite as a function of specific surface area Sbet*
- Fig. 3 : Absorption spectra of hematite pigments with different particles sizes
- Fig. 4 : Correlation of the i(II)/I(AP) intensity relation with specific surface area
- Fig. 5 : Corelation of colour values with intensity relations I(AP)/i(II)
- Fig. 6 : Colour space of hematite red pigments in Alkydal L64 (full shade)
- Fig. 7 : b*/a* as a function of I(AP)/i(II)
- Fig. 8 : Colour space of hematite red pigments in Alkydal L64 (1:5 reduction with TiO2)
- Table 1 : Spectroscopic parameters of isometric hematite red pigments
- Table 2 : Colour values of hematite red pigments with different particles sizesEn ligne : https://drive.google.com/file/d/1VLkL3xX-DFGIWsDmQoZiAr2SLGsIFy_Y/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32027
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 3 (03/2019) . - p. 132-137[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 20739 - Périodique Bibliothèque principale Documentaires Disponible Seeking the rainbow's end / Christine Burgert in EUROPEAN COATINGS JOURNAL (ECJ), N° 09/2009 (09/2009)
[article]
Titre : Seeking the rainbow's end : New colorants offer enhanced, durability and environmental benefits Type de document : texte imprimé Auteurs : Christine Burgert, Auteur ; Bill Nanson, Auteur ; Marc Maurer, Auteur ; Tom Landuydt, Auteur ; Rainer Henning, Auteur ; Angela Giubilaro, Auteur Année de publication : 2009 Article en page(s) : p. 18-23 Langues : Anglais (eng) Catégories : Pigments Index. décimale : 667.2 Colorants et pigments Résumé : The desire for individuality, functionality and sustainability at optimal cost are drivers for the development of pigments. recent introductions include new types of pearlescent effects ; a high-opacity organic red ; an inorganic orange with improved fastness and bright colour ; sophisticated pigment blends, and dark infrared reflecting pigments, which reduce solar heat gain. En ligne : https://drive.google.com/file/d/1W68IceXujJAWkQXHIHq41m0MpA4_AscC/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=6169
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 09/2009 (09/2009) . - p. 18-23[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 011545 - Périodique Bibliothèque principale Documentaires Disponible A semi-aza-crown-based chemosensor for colorimetric detection of iron(III) and iron(II) in aqueous media with large bathochromic shift in COLORATION TECHNOLOGY, Vol. 135, N° 2 (04/2019)
[article]
Titre : A semi-aza-crown-based chemosensor for colorimetric detection of iron(III) and iron(II) in aqueous media with large bathochromic shift Type de document : texte imprimé Année de publication : 2019 Article en page(s) : p. 152-159 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Capteurs chimiques
Colorimétrie
Fer
Produits chimiques -- Détection
Solutions aqueuses (chimie)Index. décimale : 667.2 Colorants et pigments Résumé : A colorimetric chemosensor, EDDAN (1,1'-((1E,11E)-5,8-dioxa-2,11-diazadodeca-1,11-diene-1,12-diyl)bis(naphthalen-2-ol)), based on a semi-aza-crown structure, was designed and synthesised to sense iron(III) and iron(II). EDDAN showed a unique colour change in the presence of either iron(III) or iron(II), turning from pale yellow to deep purple with large bathochromic shifts. The detection limits of iron(III) and iron(II) were 2.70 and 3.43 µm, respectively. EDDAN displayed a high selectivity for iron ions in the presence of other metal cations except copper(II). In addition, EDDAN showed excellent reversibility by using ethylenediaminetetraacetic acid. Moreover, EDDAN was applied to test strips as well. Based on ultraviolet-visible titrations, Job plots, electron paramagnetic resonance study and electrospray ionisation mass spectrometry analyses, a mechanism for the sensing of iron(III) and iron(II) was also proposed. Note de contenu : - EXPERIMENTAL : General information - UV-vis titration - Job plot analysis - Competition tests - Reversible test - Test strip application
- RESULTS AND DISCUSSION : The colorimetric sensing property of EDDAN to iron(III) and iron(II)DOI : 10.1111/cote.12387 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12387 Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32329
in COLORATION TECHNOLOGY > Vol. 135, N° 2 (04/2019) . - p. 152-159[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 20869 - Périodique Bibliothèque principale Documentaires Disponible Separation and identification of commercial reactive dyes with hydrophilic interaction liquid chromatography and quadrupole time-of-flight mass spectrometry / Yixin Liu in COLORATION TECHNOLOGY, Vol. 137, N° 4 (12/07/2021)
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Titre : Separation and identification of commercial reactive dyes with hydrophilic interaction liquid chromatography and quadrupole time-of-flight mass spectrometry Type de document : texte imprimé Auteurs : Yixin Liu, Auteur ; Xinyi Sui, Auteur ; Julio E. Terà n, Auteur ; Lisa Parillo-Chapman, Auteur ; Mary Ankeny, Auteur Année de publication : 2021 Article en page(s) : p. 407-417 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Chromatographie en phase liquide
Colorants -- Identification
Colorants réactifs
Séparation (technologie)
Solutions aqueuses (chimie)
Spectrométrie de masseIndex. décimale : 667.2 Colorants et pigments Résumé : The separation and identification of colourants from aqueous matrices could potentially benefit the coloration industry. In this work, we report a new method that combines hydrophilic interaction liquid chromatography (HILIC) and high-resolution mass spectrometry (HRMS) for reactive dye separation and identification without employing ion-pairing agents. The conditions outlined allowed the successful separation of a mixture of four commercial reactive dyes in an aqueous solution, which consisted of CI Reactive Black 5, CI Reactive Orange 35, CI Reactive Blue 49 and CI Reactive Red 31. To further demonstrate the feasibility of this new method, we conducted deeper research into the analysis of CI Reactive Red 31 and its hydrolysis products. Based on the high efficiency of HILIC for polar compounds, and its combination with HRMS, we were able to identify several isomers of CI Reactive Red 31 and its derivatives, which were further characterised by tandem mass spectrometry. This method could potentially benefit chemical evaluations in dye applications, including synthetic processes, because it provides reliable results and simplified operation conditions compared with common traditional high-performance liquid chromatography methods. Note de contenu : - EXPERIMENTAL : Materials - Sample preparation - Instrumentation
- RESULTS AND DISCUSSION : Separation and identification of different reactive dye mixtures by HILIC-QTOF-MS - HILIC-QTOF-MS characterisation of RR31 before and after hydrolysis treatment
- Table 1 : Hydrophilic interaction liquid chromatography method used for the separation of CI Reactive Red 31 and its hydrolysis products
- Table 2 : A summary of retention time (tR, min) and percentage area (%A) of the peaksDOI : https://doi.org/10.1111/cote.12539 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12539 Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36105
in COLORATION TECHNOLOGY > Vol. 137, N° 4 (12/07/2021) . - p. 407-417[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 22848 - Périodique Bibliothèque principale Documentaires Disponible PermalinkSimply stir in : scatter-free red / Javier Morcillo Ruiz in EUROPEAN COATINGS JOURNAL (ECJ), N° 3 (03/2019)
PermalinkPermalinkSolid solution azo pigments / N. Sekar in PAINTINDIA, Vol. LII, N° 2 (02/2002)
PermalinkSolvatochromism and quantum mechanical investigation of disazo pyridone dye / Dusan Mijin in COLORATION TECHNOLOGY, Vol. 134, N° 6 (12/2018)
PermalinkSome physical tests for pigments / Mukund Hulyalkar in PAINTINDIA, Vol. LXXI, N° 4 (04/2021)
PermalinkSomewhere under the rainbow : developments in colour pigments / Sandy Morrison in SURFACE COATINGS INTERNATIONAL, Vol. 95, 6 (12/2012)
PermalinkPermalinkPermalinkA sparkling future for effect pigments / Carsten Handrosch in EUROPEAN COATINGS JOURNAL (ECJ), N° 9 (09/2016)
PermalinkSparkling results with spacer technology / Guenter Kaup in EUROPEAN COATINGS JOURNAL (ECJ), N° 9 (09/2022)
PermalinkSpecial effect pigments / Alexander Peters in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 205, N° 4607 (04/2015)
PermalinkSpecial effect pigments / Gerhard Pfaff / Hannover [Germany] : Vincentz Network GmbH & Co. (2008)
PermalinkSpecial-effect surface coatings for hair styling irons : overcoming the heat resistance challenge / C. Barbier in SURFACE COATINGS INTERNATIONAL, Vol. 94, 6 (12/2011)
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