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Optical whitening of cationised cotton : effect on whiteness and whiteness tint / Mustafa Tutak in COLORATION TECHNOLOGY, Vol. 127, N° 5 (2011)
[article]
Titre : Optical whitening of cationised cotton : effect on whiteness and whiteness tint Type de document : texte imprimé Auteurs : Mustafa Tutak, Auteur Année de publication : 2011 Article en page(s) : p. 340-345 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Agents de blanchiment
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).Tags : 'Blanchiment coton' 'Index blanchiment' optique' Cationisation Index. décimale : 667.3 Teinture et impression des tissus Résumé : In this study, the effect of cationisation on optical whitening was examined. For this purpose, the whiteness index and whiteness tint of optically whitened pre-cationised knitted cotton fabrics were analysed. The cationisation and optical whitening processes were carried out under different concentration levels, using the exhaustion method. The whiteness index and whiteness tint were calculated after colour measurements were taken. The experimental results were also analysed statistically using ANOVA. The whiteness index obtained from cationised fabric was lower than that of non-cationised fabrics. While the whiteness tint of cationised cotton fabric had a blue to greenish nuance, the non-cationised fabric had a reddish nuance. Note de contenu : - Fabric and chemicals
- Cationisation and optical whitening process
- Colour measurements
- Statistical model
DOI : 10.1111/j.1478-4408.2011.00320.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2011.00320.x/pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=12186
in COLORATION TECHNOLOGY > Vol. 127, N° 5 (2011) . - p. 340-345[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 13324 - Périodique Bibliothèque principale Documentaires Disponible Development of a novel oxidative hair color based on a system with an optimized ratio of higher alcohol to cationic surfactant / Takahiro Yamashita in IFSCC MAGAZINE, Vol. 8, N° 3 (07-08-09/2005)
[article]
Titre : Development of a novel oxidative hair color based on a system with an optimized ratio of higher alcohol to cationic surfactant Type de document : texte imprimé Auteurs : Takahiro Yamashita, Auteur ; Masatoshi Ochiai, Auteur ; Kazuya Shibata, Auteur ; Masaaki Yasuda, Auteur ; Akira Noda, Auteur Année de publication : 2005 Article en page(s) : p.163-169 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Agents de blanchiment
Cheveux -- Teinture
SurfactantsTags : 'Couleur oxydante des cheveux' 'Agent de blanchiment' 'Rapport molaire' 'Surfactant cationique' Index. décimale : 668.5 Parfums et cosmétiques Résumé : Oxidative hair color, the most commonly used for coloring hair, is characterized by its bleaching effect. This effect enables dark hair to be dyed in various bright colors. In order to enhance this bleaching effect, the concentration of either the alkalizing or oxidizing agent in the hair color base is generally increased. However, this method causes chemical damage to the hair. With the aim of finding methods to obtain an improved bleaching effect without increasing the amount of bleaching ingredients, the authors investigated the permeation mechanism. Cationic bases showed the highest bleaching effect and allowed greater penetration, permitting bleaching ingredients to enter the cortex of the hair more easily and diffuse more quickly. In addition, the molar ratios of higher alcohol (A) to cationic surfactant (C) as a function of the bleaching effect were also evaluated. The results showed an optimum range for this A/C ratio. The smoothness of the hair was also evaluated, revealing an optimum range for the A/C ratio. Based on these findings, a product with an A/C ratio that maximizes the bleaching effect and the smoothness of the hair was successfully developed. Comparison of this newly developed product with a conventional product verified that the new product has a greater bleaching effect and gives a beautiful depth of color while maintaining the silky smoothness of the texture of the hair. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=10489
in IFSCC MAGAZINE > Vol. 8, N° 3 (07-08-09/2005) . - p.163-169[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 003888 - Périodique Bibliothèque principale Documentaires Disponible
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Titre : Keeping a clean profile : Optimising resistance of HAA-cured polyesters to environmental stresses Type de document : texte imprimé Auteurs : Harrie van Liempt, Auteur ; Tony Pledger, Auteur Année de publication : 2012 Article en page(s) : p. 22-25 Langues : Anglais (eng) Catégories : Dioxyde de titane
Formulation (Génie chimique)
Hydroxyalkylamide
Polyesters
Revêtements
Revêtements poudre:Peinture poudreTags : 'Peinture poudre polyester' 'Béta-hydroxyalkylamides' 'Résistance jaunissement' blanchiment' corrosion Index. décimale : 667.9 Revêtements et enduits Résumé : Beta-hydroxyalkylamides (HAA) are widely used to crosslink polyester powder coatings in exterior applications. Ways to maximise the performance of these coatings in three key respects are discussed : minimising yellowing due to high temperatures or the use of gas ovens, improving corrosion resistance and minimising blanching. Note de contenu : - Formulation principles for HAA cured powders
- Formulating to avoid discolouration
- Resin and titanium dioxide properties interact
- Combating corrosion on untreated steel substrate
- Pre-treated steel has different coating requirements
- Choosing resins and extenders to minimise blanching
- Key factors in performance optimisation summarisedEn ligne : https://drive.google.com/file/d/1P5ZtEUBlZKRQDk3U2cUWpA0nZJ6vBlJj/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=13650
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 3 (03/2012) . - p. 22-25[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 13723 - Périodique Bibliothèque principale Documentaires Disponible