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Effect of process conditions on the properties of surface-modified organic pigments encapsulated by UV-curable resins / Osama Abdel Hakeim in COLORATION TECHNOLOGY, Vol. 134, N° 1 (02/2018)
[article]
Titre : Effect of process conditions on the properties of surface-modified organic pigments encapsulated by UV-curable resins Type de document : texte imprimé Auteurs : Osama Abdel Hakeim, Auteur ; A. A. Arafa, Auteur ; M. K. Zahran, Auteur ; L. A. W. Abdou, Auteur Année de publication : 2018 Article en page(s) : p. 44-58 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Caractérisation
Dispersions et suspensions
Encapsulation
Miniémulsions
Monomères
Pigments organiques
Polymères -- Effet du rayonnement ultraviolet
Traîtements de surfaceIndex. décimale : 667.3 Teinture et impression des tissus Résumé : Aqueous dispersions of nanoscale organic pigments were successfully prepared via ball milling and ultrasonication. The dispersed organic pigments were encapsulated into UV-curable resins via a mini-emulsion technique. Critical factors that affected the dispersion and encapsulation stability were investigated. The encapsulated organic pigments were characterised with transmission electron microscopy, thermogravimetric analyses, Fourier Transform-infrared spectra and zeta potential. The results clarified that the type of dispersing agent plays an important role in achieving maximal dispersion stability. Encapsulated organic pigments showed greater dispersion stability, and better wettability than the original pigments. Polyester tetra-acrylate oligomer can stabilise the mini-emulsion from diffusion degradation and inhibit phase separation with time. 1,6-Hexandiol dimethacrylate was the monomer of choice for ink-jet printing inks. Furthermore, it was found that monomer/oligomer and pigment/resin ratios were more influential and needed to be optimised. Thermal analysis, ultracentrifuge sedimentation and morphologies provided supporting evidence for the encapsulation of organic pigments into UV-curable resins. Note de contenu : - METHODS : Preparation of nanoscale organic pigment dispersions
- PREPARATION OF NANOPIGMENT DISPERSIONS : Effect of dispersing agent type - Effect of dispersing agent concentration
- ENCAPSULATION OF ORGANIC PIGMENT INTO UV-RESINS : Effect of encapsulation on pigment morphology and size distribution - Effect of encapsulation on dispersion stability - Effect of monomer type on encapsulation stability - Effect of monomer/oligomer ratio on encapsulation stability - Effect of pigment/resin ratio on encapsulation stability
- CHARACTERISATION OF ENCAPSULATED PIGMENTSDOI : 10.1111/cote.12318 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12318 Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=30126
in COLORATION TECHNOLOGY > Vol. 134, N° 1 (02/2018) . - p. 44-58[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 19649 - Périodique Bibliothèque principale Documentaires Disponible Influence of aminopropylvinylsilsesquioxane post-treatment on the colour performance of pigment-based inks on ink-jet-printed polyester fabrics / Osama Abdel Hakeim in COLORATION TECHNOLOGY, Vol. 137, N° 6 (12/2021)
[article]
Titre : Influence of aminopropylvinylsilsesquioxane post-treatment on the colour performance of pigment-based inks on ink-jet-printed polyester fabrics Type de document : texte imprimé Auteurs : Osama Abdel Hakeim, Auteur ; Samah Abdou Rashed, Auteur ; Hanan Abdelmohsen Diab, Auteur Année de publication : 2021 Article en page(s) : p. 587-603 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Aminopropylvinylsilsesquioxane
Antistatiques
Encre
Evaluation
Fibres polyesters
Impression jet d'encre
Impression sur étoffes
Pigments
Textiles et tissus synthétiquesIndex. décimale : 667.3 Teinture et impression des tissus Résumé : The present research manages the utilisation of post-treatment coating solutions of aminopropyl/vinyl/silsesquioxane (APSV) for ink-jet printing of polyester with CMYK (cyan, magenta, yellow and key [black]) pigmented water-based ink-jet inks. The proposed protocols could effectively fix the pigment colours on polyester at a low relieving temperature under the thermal initiation or ultraviolet (UV)-radiation of vinyl terminated groups in APSV compared to the commercial textile binders. The colorimetric data and fixation, antistatic properties, roughness and durability of the ink-jet-printed samples were studied. The outcomes demonstrated that APSV successfully fixed the pigment-based ink-jet inks on polyester fabric, and could achieve significantly higher colour performance and degree of fixation than the commercial textile binders. The APSV-post-treated examples had durable antistatic properties and soft handle. The durability tests indicated that the ink-jet-printed polyester fabrics post-treated with APSV retained a higher degree of fixation and antistatic properties after 10 launderings. In general, the outcomes revealed that APSV can be successfully utilised as a pigment binding agent, eliminate all determinant drawbacks in works of literature for treatment of fabrics in ink-jet printing application, such as the fabric handles and the many approached methods. Moreover, it showed a good durable antistatic finish for the post-treatment of ink-jet-printed polyester fabrics. Note de contenu : - EXPERIMENTAL : Materials
- METHODS : Purification and alkaline treatement of PES - Ink-jet printing of PES fabric - Post-treatment with textile binders - Post-treatment with APSV - Post-treatment with APSV under UV-radiation - Evaluation of the printed fabrics
- RESULTS AND DISCUSSION : Assessment of APSV post-treatment for fixation of pigment-based inks on PES - Comparative analysis of post-treatment with APSV and commercial textile binder - Effect of vayring the concentration of APSV on the degree of fixation of ink-jet printed polyester fabrics - Optimisation of the factors affecting APSV post-treatment under thermal initiation - Optimisation of the factors affecting APSV post-treatment under UV radiation - Laundering durability of APSV post-treatment - Scanning electron microscopy of ASV treated fabrics - XPS characterisation - FTIR spectra - Performance properties of APSV post-treated polyester fabrics
- Table 1 : Effect of post-treatment agent on the colour strength and fastness properties of ink-jet printed samples
- Table 2 : Effect of concentration of sodium persulphate on colorimetric values of ink-jet printed polyester fabrics
- Table 3 : Effect of concentration of 2,2-diethoxyacetophenone (DEAP) on the colorimetric values of ink-jet printed polyester fabrics
- Table 4 : Effect of concentration of DEAP on the colorimetric values of ink-jet printed polyester fabricsDOI : https://doi.org/10.1111/cote.12552 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12552 Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36790
in COLORATION TECHNOLOGY > Vol. 137, N° 6 (12/2021) . - p. 587-603[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 23068 - Périodique Bibliothèque principale Documentaires Disponible