| Titre : |
The effects of color concentrates on the rheology of tint bases |
| Type de document : |
texte imprimé |
| Auteurs : |
Douglas J. Herrick, Auteur ; Jason W. Boke, Auteur ; Maung Y. Htet, Auteur ; Raymond H. Fernando, Auteur |
| Année de publication : |
2013 |
| Article en page(s) : |
p. 34-40 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Bases à teinter
Brillance (optique) -- Mesure
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.
Epaississants
Formulation (Génie chimique)
hydroxyéthylcellulose
Polyuréthane éthoxylé modifié de façon hydrophobe
Rhéologie
Viscosité
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
Rheological properties of coatings formulated with associative thickeners are quite sensitive to a number of formulation variables. Small changes in these variables, which include the latex, thickener, and surfactant components of the coating, can have a profound effect. Many previous studies have focused on understanding and controlling these sensitivities. However, few studies have focused on the relatively large viscosity drop and related problems when predispersed colorants are added to tint bases formulated with associative thickeners. In this study, pastel and deep-tone tint bases were formulated with associative and nonassociative thickeners. The tint bases were then tinted with six different conventional colorant dispersions and six low-VOC counterparts of the same colorants. Effects of the colorants, thickeners, and VOCs on viscosity profiles, dynamic viscoelastic properties, color development, and gloss were determined and results are presented. |
| Note de contenu : |
- EXPERIMENTAL MATERIALS AND METHODS : Pastel Base Formulations - Deep-tone base formulations - Colorant addition - Rheology characterization - Gloss and tint strength measurements
- RESULTS AND DISCUSSION : Viscosity behavior of tint bases without colorants - Effect of colorants on viscosity Behavior of tint bases - Effect of colorants on dynamic viscoelasic properties of tint bases - Effect of colorants on other properties of tint bases
- Table 1 : Pastel base with HEC thickeners
- Table 2 : Pastel base with HEUR thickeners
- Table 3 : Deep-tone base with HEC thickeners
- Table 4 : Deep-tone base with HEUR thickeners
- Table 5 : List of colorants and corresponding CI pigments used in this study
- Table 6 : Stormer viscosities and solids (% by weight) in tint bases |
| En ligne : |
https://drive.google.com/file/d/16Xjmr55HkbpVrB4jwI8fSItJvNv5fdE3/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=40549 |
in COATINGS TECH > Vol. 10, N° 9 (09/2013) . - p. 34-40
Aller sur edunet
Accueil
The effects of color concentrates on the rheology of tint bases in COATINGS TECH, Vol. 10, N° 9 (09/2013)
