Accueil
Catégories
Ajouter le résultat dans votre panier Affiner la recherche
Etendre la recherche sur niveau(x) vers le bas
Mechanism and properties of coloured nanoscale SiO2 prepared from silica and reactive dyes / Liping Zhang in COLORATION TECHNOLOGY, Vol. 132, N° 5 (10/2016)
[article]
Titre : Mechanism and properties of coloured nanoscale SiO2 prepared from silica and reactive dyes Type de document : texte imprimé Auteurs : Liping Zhang, Auteur ; Min Li, Auteur ; Anli Tian, Auteur ; Shaohai Fu, Auteur Année de publication : 2016 Article en page(s) : p. 399-406 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Colorants réactifs
Dioxyde de silicium
Matériaux -- Coloration
Nanotechnologie
Photostabilité
Résistance chimique
solvantsIndex. décimale : 667.3 Teinture et impression des tissus Résumé : KH560-modified SiO2 was prepared using tetraethyl orthosilicate (TEOS) and ?-(2,3-epoxypropoxy) propytrimethoxysilane (KH560) by the sol–gel method and then coloured with CI Reactive Blue 4 (X-BR) to prepare coloured nanoscale SiO2. The antisolvent performance and the results of cross-polarisation/magic angle spinning 13C nuclear magnetic resonance and Fourier transform infrared spectroscopy showed that the reaction of X-BR with KH560-modified SiO2 is a two-step process : X-BR is firstly adsorbed by KH560-modified SiO2 via van der Waals forces, and then nucleophilic substitution occurs between dichloro triazine and the epoxy group. The grafting ratio of X-BR on KH560-modified SiO2 reached 95% under optimum conditions, i.e. a mass ratio of KH560 to TEOS of 20%, a temperature of 40 °C, a pH of 8.5, and a reaction time of 5 h. X-ray diffraction analysis and transmission electron microscopy showed that the coloured nanoscale SiO2 was amorphous, with a mean diameter of 216 nm. Experimental application showed that the coloured nanoscale SiO2 had excellent stability to solvents and alkaline solution, and the absorptive capacity of the coloured nanoscale SiO2 in the 200–400 nm region was higher than that of X-BR. The light fastness of the coloured nanoscale SiO2 reached 5–6 grade. Note de contenu : - EXPERIMENTAL : Materials - Preparation of coloured nanoscale SiO2 - Printing - Characterisation
- RESULTS AND DISCUSSION : Mechanism for preparation of coloured nanoscale SiO2 - Optimisation of the process - Characterisation of coloured nanoscale SiO2 - Properties of the coloured nanoscale SiO2DOI : 10.1111/cote.12231 En ligne : https://drive.google.com/file/d/10H_L9K6VSzyHlpnc8_3ObEMJ_sZsbIfx/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=27228
in COLORATION TECHNOLOGY > Vol. 132, N° 5 (10/2016) . - p. 399-406[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 18353 - Périodique Bibliothèque principale Documentaires Disponible Metal mordanting in dyeing with natural colourants / Avinash P. Manian in COLORATION TECHNOLOGY, Vol. 132, N° 2 (04/2016)
[article]
Titre : Metal mordanting in dyeing with natural colourants Type de document : texte imprimé Auteurs : Avinash P. Manian, Auteur ; Paul Roshan, Auteur ; Thomas Bechtold, Auteur Année de publication : 2016 Article en page(s) : p. 107-113 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Colorants végétaux
Mordançage (teinture)
Photostabilité
Sels métalliques
Teinture -- Fibres textilesIndex. décimale : 667.3 Teinture et impression des tissus Résumé : Metal mordanting, or the application of metal salts, is a common method of improving the light fastness in dyeing with natural colourants. This review presents the results from a survey of the literature on metal mordanting to assess what levels of correlation exist between mordant-induced effects (changes in colour and colour depth) and the changes in light fastness, what is known about the mechanisms of mordant-induced improvements of light fastness, and how the salt levels used in coloration processes compare with the limits on metal levels in wastewater and on the dyed substrates. No strong interrelationships are found between the mordant-induced effects and light fastness improvements. Knowledge about mechanisms of mordant effect on light fastness appears, in large part, to be derived from empirical correlations. However, as light fastness is affected by a multitude of factors, the correlations do not always hold true. It is found that residual metal contents in spent dye/mordanting liquors are generally not reported. However, with rough calculations, it is estimated that, with even the lowest reported salt concentrations, the metal contents in spent liquors exceed environmental release limits. The metal contents on dyed substrates are also not generally reported, but similar estimations show that the contents of heavy metal on dyed substrates (when copper and chromium salts are used as mordants) also exceed limits. On the basis of these observations, the authors make suggestions for elements to be included in investigations on furthering the use of natural colourants in textile dyeing. Note de contenu : - Colour depth changes and light fastness improvements
- Colour changes and light fastness improvements
- Photochemical quenching mechanisms
- Mordant levels used in dyeingDOI : 10.1111/cote.12199 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12199 Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=25853
in COLORATION TECHNOLOGY > Vol. 132, N° 2 (04/2016) . - p. 107-113[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 18025 - Périodique Bibliothèque principale Documentaires Disponible Migration of hindered amine light stabilizers in automotive clearcoats / Mark E. Nichols in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 10, N° 3 (05/2013)
[article]
Titre : Migration of hindered amine light stabilizers in automotive clearcoats Type de document : texte imprimé Auteurs : Mark E. Nichols, Auteur ; S. L. Kaberline, Auteur Année de publication : 2013 Article en page(s) : p. 427-432 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Automobiles -- Revêtements:Automobiles -- Peinture
Diffusion (physique)
Durée de vie (Ingénierie)
Photostabilité
Polyfluorure de vinylidène
Résistance au rayonnement ultraviolet
Spectrométrie de masse à ionisation secondaire
Stabilisant à la lumière de type amine encombrée
VernisIndex. décimale : 667.9 Revêtements et enduits Résumé : The diffusion behavior of two hindered amine light stabilizers (HALS) [bis(1-octyloxy-2,2,6,6-tetramethyl-4-piperidinyl)-sebacate and bis(1,2,2,6,6-pentamethyl-4-piperidinyl)-sebacate] in an automotive clearcoat has been quantified via time-of-flight secondary ion mass spectrometry. Diffusion couples made from clearcoats with and without HALS allow for the estimation of the diffusion coefficient of one of the HALS. The high diffusion coefficient of one of the HALS contradicts the presence of HALS gradients in weathered coating systems. This discrepancy is ascribed to a decreasing diffusion coefficient of the HALS in the coating matrix due to a weathering-induced increase in the T g of the clearcoat. Note de contenu : - EXPERIMENTAL : Materials - Diffusion couples - Time-of-flight secondary ion mass spectrometry (TOF-SIMS)
- RESULTS : Sequential layering experiments - Diffusion couple experimentsDOI : 10.1007/s11998-013-9476-4 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-013-9476-4.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=18741
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 10, N° 3 (05/2013) . - p. 427-432[article]Réservation
Réserver ce document
Exemplaires (2)
Code-barres Cote Support Localisation Section Disponibilité 15149 - Périodique Bibliothèque principale Documentaires Disponible 15593 - Périodique Bibliothèque principale Documentaires Disponible Modified guar gum : An alternative source for printing of cotton fabric with reactive dye / Mohammad Khajeh Mehrizi in COLORATION TECHNOLOGY, Vol. 139, N° 4 (08/2023)
[article]
Titre : Modified guar gum : An alternative source for printing of cotton fabric with reactive dye Type de document : texte imprimé Auteurs : Mohammad Khajeh Mehrizi, Auteur ; Mostafa Jokar, Auteur ; Tayebah Sadeghyan, Auteur ; Mohammad Erfan Azizi, Auteur ; Mohammad Reza Rahmani, Auteur Année de publication : 2023 Article en page(s) : p. 385-394 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Caractérisation
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).
Epaississants
Essais (technologie)
Gomme de guarLa gomme de guar est extraite de la graine de la légumineuse Cyamopsis tetragonoloba, où elle sert de réserve d'aliments et d'eau.
La gomme de guar est composée principalement de galactomannane, une fibre végétale soluble et acalorique. Le galactomannane est un polymère linéaire composé d'une chaine de monomères de mannose ((1,4)-beta-D-mannopyranose) auxquelles sont ramifiés par un pont 1-6 une unité de galactose. Le ratio entre le mannose et le galactose est de 2 pour 1, ainsi en moyenne une unité de galactose est ramifié tous les deux mannose sur la chaine. Par comparaison, il est de 4 pour 1 pour la gomme de caroube et 3 pour 1 pour la gomme tara.
La gomme de guar est un additif alimentaire (E4124) largement utilisé dans l'industrie agro-alimentaire. Elle permet notamment d'alléger certaines préparations en remplaçant le rôle de l'amidon, de sucres ou de matières grasses. La gomme de guar est utilisée comme épaississant, stabilisant et émulsifiant dans les aliments grâce à sa texture uniforme et ses propriétés pour former des gels. Elle peut être utilisée dans les sauces, soupes, crèmes glacées et sorbets, produits de boulangerie et de pâtisserie, poudres, etc.
Impression sur étoffes
Mesure
Pâtes d'impression
Photostabilité
Résistance au lavage
Solidité de la couleur
Textiles et tissus imprimésIndex. décimale : 667.3 Teinture et impression des tissus Résumé : The alginate thickener is the thickener frequently used for reactive printing of textile. The thickener responds with reactive pigments and thus does not lead to the fabric composition becoming stiffer. In this study, we prepared oxidised natural guar gum with hydrogen peroxide, sodium hypochlorite and sodium hydroxide. All other polysaccharides comprise reactive hydroxyl units with a stronger reactivity that must be replaced if they are to be used in reactive printing. Guar derivatives were synthesised and verified using Fourier-transform infrared (FTIR) spectroscopy. Natural thickeners, synthetic guar gum derivatives, have been employed in textile printing technique. In comparison to other synthetic thickeners, modified environmental guar gum polymer has been shown to be an ecologically friendly and low-cost thickener. Cotton fabric printed with modified guar thickening with hydrogen peroxide has even stronger colour strength than fabric printed with sodium alginate thickener, which is highly favourable. Penetration properties, colour value, colour strength, colour fastness to washing, light and rubbing was compared with alginate thickener (readily available on the market). Guar gum thickeners showed enhanced features versus sodium alginate for reactive printing. Partially replaced guar gum is an appropriate option due to the colour and physical properties. Note de contenu : - EXPERIMENTAL : Reagents - Modified guar gums - Preparation of the printing paste - Printing process - Measurements and testing
- RESULTS AND DISCUSSION : Effect of thickening agents on colorimetric data - Effect of colour fastness to washing, light and rubbing - Studding of bending of the printed fabrics and effect of thickening agents on return angle of wrinkles - Effect of thickening agents on drop absorption time and water droplet diameter - FTIR results
- Table 1 : Characteristic of C.I. Reactive Red 187
- Table 2 : Characteristic of the printing paste for samples 1–12E
- Table 3 : Characteristic of the printing paste for samples 13–16
- Table 4 : Characteristic of the printing paste for samples 17–19
- Table 5 : Colour value and colour strength of the printed fabrics
- Table 6 : Colour fastness to washing, light and rubbing of printed samples
- Table 7 : Properties of bending length and return angle of wrinkles of samples
- Table 8 : Effect of thickening agents on drop absorption time and water droplet diameterDOI : https://doi.org/10.1111/cote.12657 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12657 Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39677
in COLORATION TECHNOLOGY > Vol. 139, N° 4 (08/2023) . - p. 385-394[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 24152 - Périodique Bibliothèque principale Documentaires Disponible Natural approach to improving light fastness of a leather dyed with a microbial colorant / Pandey Sudha in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXI, N° 9 (09/2016)
[article]
Titre : Natural approach to improving light fastness of a leather dyed with a microbial colorant Type de document : texte imprimé Auteurs : Pandey Sudha, Auteur ; C. Gupta, Auteur ; S. Aggarwal, Auteur Année de publication : 2016 Article en page(s) : p. 315-324 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Acacia et constituants
Antioxydants
Colorants microbiens
Cuir nappa
Cuirs et peaux -- Propriétés mécaniques
Cuirs et peaux -- Teinture
Cuirs et peaux de chèvres
Emulsions
Gommes végétales
Photostabilité
Tanins
Vitamine EIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : Microbial colorants are becoming popular because they have the potential to overcome disadvantages of synthetic and natural dyes. However, for commercialization, their after dyeing characteristics especially light fastness needs to be improved preferably using natural agents to make the complete dyeing process eco-benign. Therefore, in this study, eco-friendly tannins and antioxidants were employed to improve the light fastness of wet blue goat nappa skin dyed with the colorant of Penicillium minioluteum. Their effect on color strength, fastness properties, and mechanical strength were also assessed. As a result, the only sample treated with tannic acid before dyeing showed moderate light fastness with improved perspiration, tear, and tensile strength. Further improvement in light fastness was recorded when tannic acid treated and dyed sample was padded with vitamin E - gum acacia emulsion (10% vitamin E, 10% glycerol, 4.5% gum acacia powder). Here, improvement in perspiration and rub fastness was also noticed. Note de contenu : - MATERIALS AND METHODS : Dyed wet blue goat nappa skin - Treating leather with tanning - Treating dyed leather with antioxidants - Testing treated samples for light fastness and other properties - treating with vitamine E - Gum acacia emulsion
- RESULTS : Treatment with tannins and antioxidants - Treatment with vitamin E - Gum acacia emulsion
- DISCUSSION : Treatment with tannins and antioxidants - Treatment with vitamin E - Gum acacia emulsionEn ligne : https://drive.google.com/file/d/1cx5Iqe0Pvdyw85hMjOvrmRCmGXlJY5kJ/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=26918
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CXI, N° 9 (09/2016) . - p. 315-324[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 18288 - Périodique Bibliothèque principale Documentaires Disponible Natural formulations with non-nano mineral UV filters / Blanca Motos-Pérez in PERSONAL CARE EUROPE, Vol. 14, N° 2 (04/2020)
PermalinkA new colorimetric assay for antioxidant capacity and photostability / Elisabet Fernández-GarcÃa in COLORATION TECHNOLOGY, Vol. 132, N° 3 (06/2016)
PermalinkNew non-isocyanate moisture curable silylated resin for protective coating applications / Michael Seeber in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 207, N° 4635 (10/2017)
PermalinkNew waterborne systems bring fast return-to-service and excellent aesthetics / Zheng Shiying in COATINGS WORLD, Vol. 23, N° 11 (11/2018)
PermalinkA novel approach for enhanced color intensity and uniformity in leather dyeing / Sujata Mandal in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXIII, N° 6 (06/2018)
PermalinkA novel approach for lightfast wet-white leather manufacture based on sulfone syntan-aluminum tanning agent combination tannage / Zhang Long in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXIII, N° 6 (06/2018)
PermalinkNovel light stabilisers for waterborne alkyd coatings / Yung-Chi Yang in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 204, N° 4596 (05/2014)
PermalinkNovel light stabilisers for waterborne epoxy coatings / Yung-Chi Yang in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 202, N° 4577 (10/2012)
PermalinkNovel light stabilisers for waterborne UV-curable coatings / Yung-Chi Yang in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 203, N° 4583 (04/2013)
PermalinkNovel light stabilizers for environmental friendly coatings / Yung-Chi Yang in PAINTINDIA, Vol. LXIV, N° 5 (05/2014)
PermalinkNovel methods for dyeing the epidermis of bamboo culms and their colour fastness / Min-Jay Chung in COLORATION TECHNOLOGY, Vol. 130, N° 2 (04/2014)
PermalinkA novel non-pickling combination tanning for chrome-free leather based on reactive benzesulphonate and tannic acid / Yuanhang Xiao in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXV, N° 1 (01/2020)
PermalinkOptimisation of process parameters of Alpaca wool printing with Juglans regia natural dye / Martinia Glogar in COLORATION TECHNOLOGY, Vol. 136, N° 2 (04/2020)
PermalinkOrganic vs inorganic light stabilizers for waterborne clear coats : a fair comparison / Christian Schaller in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 9, N° 4 (07/2012)
PermalinkOrganoclays assisted vat and disperse dyeing of poly(ethylene terephthalate) nanocomposite fabrics via melt spinning / Aballa A. Mousa in COLORATION TECHNOLOGY, Vol. 134, N° 2 (04/2018)
PermalinkL'origan, un actif éclaircissant naturel / Julie Droux in EXPRESSION COSMETIQUE, N° Hors série (12/2012)
PermalinkPermalinkPhotocuring and photostabilisation of coatings for outdoor use / Sonia Megert in SURFACE COATINGS INTERNATIONAL. PART A : COATINGS JOURNAL, Vol. 87 A, 06 (07/2004)
PermalinkPhotostabilisation : for safe, pleasant sunscreens / Fiona Feng in PERSONAL CARE EUROPE, Vol. 12, N° 5 (11/2018)
PermalinkLa photostabilisation par additivation / J. Lemaire in CAOUTCHOUCS & PLASTIQUES, N° 754 (11/1996)
Permalink