BiVO4-pigments and colour space expansion / Heinrich-Michael Wirlth in EUROPEAN COATINGS JOURNAL (ECJ), N° 3 (03/2019)  

[article]  inEUROPEAN COATINGS JOURNAL (ECJ) > N° 3 (03/2019) . - p. 114-119 Titre : BiVO4-pigments and colour space expansion Type de document : texte imprimé Auteurs : Heinrich-Michael Wirlth, Auteur ; Olaf Schmidt-Park, Auteur Année de publication : 2019 Article en page(s) : p. 114-119 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Colorimétrie Jaune Pigments hybrides Pigments inorganiques -- Analyse Vanadate de bismuth Index. décimale : 667.2 Colorants et pigments Résumé : Currently the inorganic yellow pigments used most in the paint and coating industry are lead chromate, goethite, nickel/chromium-rutile and bismuth vanadate. The chromaticity coordinates of these pigments are depicted in Fig. 1 as a full tone. Note de contenu : - Colour properties of BiVO4 - Chemical modifications of bismuth vanadates - Combining BiVO4 pigments inorganic orange pigments - BiVO4-hybrid pigments - The way forward - Fig. 1 : Colour space of inorganic yellow pigments (full tone melamine resin system, D65/10°C, CIELab units) - Fig. 2 : Combination of m-Scheelite-ViOV4P2 with inorganic orange pigments (chromaticity in full tone) - Fig. 3 : Remission spectra of different BiVO4/RTZ-orange mixtures (measurements according to paint deliver/full tone) - Fig. 4 : BiVO4-hybrid pigments with different organic yellow/orange pigments (full tone melamine resin system) - Fig. 5 : Development of a* (full tone melamine resin) dependent on the component portion - Table 1 : Properties of BiVO4 pigments - Table 2 : Combination of BiVO4 with the inorganic orange pigment PY 216 - Table 3 : Combination of BiVO4 with the inorganic orange pigment PY 42 - Table 4 : Hybrid pigments based on monocline ViVO4 En ligne : https://drive.google.com/file/d/1YzYpkfx-p7SnNqeUTIcjp8mRff34cMyR/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32024 [article]

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One-step mini-emulsion copolymerisation of waterborne polysiloxane-modified polyacrylate/pigment hybrid latex and its application in textile pigment printing / Fenping Wang in COLORATION TECHNOLOGY, Vol. 138, N° 3 (06/2022)  

[article]  inCOLORATION TECHNOLOGY > Vol. 138, N° 3 (06/2022) . - p. 291-303 Titre : One-step mini-emulsion copolymerisation of waterborne polysiloxane-modified polyacrylate/pigment hybrid latex and its application in textile pigment printing Type de document : texte imprimé Auteurs : Fenping Wang, Auteur ; Jiawei Li, Auteur ; Lin Lu, Auteur ; Xiaofei Yan, Auteur ; Dongming Qi, Auteur ; Zhijie Chen, Auteur Année de publication : 2022 Article en page(s) : p. 291-303 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Caractérisation Copolymérisation Douceur (toucher) Fibres polyesters Hydrophobie Impression pigmentaire Latex Miniémulsions Pigments hybrides Polyacrylates Polyéthylène téréphtalate Polymérisation en émulsion Silicones Les silicones, ou polysiloxanes, sont des composés inorganiques formés d'une chaine silicium-oxygène (...-Si-O-Si-O-Si-O-...) sur laquelle des groupes se fixent, sur les atomes de silicium. Certains groupes organiques peuvent être utilisés pour relier entre elles plusieurs de ces chaines (...-Si-O-...). Le type le plus courant est le poly(diméthylsiloxane) linéaire ou PDMS. Le second groupe en importance de matériaux en silicone est celui des résines de silicone, formées par des oligosiloxanes ramifiés ou en forme de cage (wiki). Solidité de la couleur Index. décimale : 667.3 Teinture et impression des tissus Résumé : Textile pigment printing and dyeing is an environmentally friendly and sustainable clean production technology that has the advantages of saving water, saving energy and reducing pollution. However, the application of this technology in industry is severely limited because of the disadvantages of stiff hand feeling, poor wet rubbing fastness and other performance properties of traditional pigment-printed fabric. To improve the pigment printing performance, a novel method of preparing hybrid pigment latex containing silicone by one-step mini-emulsion copolymerisation of silicone and acrylic monomers was explored in this work. Here, a comprehensive study of the effect of the ratio of silicone and acrylic, and the silicone component of alkoxysilane and cyclic siloxanes, on the properties of hybrid latex films and pigment-printed polyester fibres, was conducted. It was found that, with an increasing amount of silicone, the hybrid pigment latex films gradually enhanced the water resistance, flexibility and thermal stability properties. Those water repellencies and smooth feeling properties were achieved by incorporating the hydrophobicity and the flexibility of the copolymer chains of silicone. The waterborne self-adhesive hybrid pigment containing silicone can be directly applied for pigment printing of polyester fabric. Compared with the control printing system (without silicone), it not only exhibited an equivalent colour strength, but also improved the colour fastness and hand feel. Based on these results, this approach may provide insights into the rational design of waterborne self-adhesive textile hybrid pigments for high-quality printing performance. Note de contenu : - EXPERIMENTAL : Chemicals and materials - Sample preparation - Characterisations - RESULTS AND DISCUSSION : The morphology and size distribution of hybrid pigment latex - FTIR analysis and the phase structure of hybrid latex films - Hydrophobicity of hybrid pigment latex films - Thermal and mechanical properties of hybrid pigment latex films - Textile pigment printing properties of self-adhesive Si-PAcr/PB latex - Table 1 : Recipes of PAcr/PB hybrid latex - Table 2 : Properties of PAcr/PB and Si-PAcr/PB hybrid latex - Table 3 : Different siloxane content and properties of hybrid latex for the prepared samples - Table 4 : Properties of polyester fabrics printed with PAcr/PB and Si-PAcr/PB hybrid latex DOI : https://doi.org/10.1111/cote.12591 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12591 Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37858 [article]

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"Out-of-the-box" formulations / Lutz Frischmann in EUROPEAN COATINGS JOURNAL (ECJ), N° 7-8 (07-08/2011)  

[article]  inEUROPEAN COATINGS JOURNAL (ECJ) > N° 7-8 (07-08/2011) . - p. 32-36 Titre : "Out-of-the-box" formulations : Novel inorganic-organic pigment combinations Type de document : texte imprimé Auteurs : Lutz Frischmann, Auteur ; Jürgen Ott, Auteur Année de publication : 2011 Article en page(s) : p. 32-36 Langues : Anglais (eng) Catégories : Pigments hybrides Index. décimale : 667.9 Revêtements et enduits Résumé : The term "sustainable innovations" refers to those innovations that not only create an economic advantage for the company, but also result in benefits for processors and the environment. Modern hybrid pigments and second-generation dry-pigment preparations have a performance potential that cannot be achieved with basic dry-blending techniques. Examples are hybrid pigments based on an inorganic core and an organic shell as well as mix mulled dry preparations. Note de contenu : - Potential or organic-inorganic pigment combinations exploited - I. Hybrid pigments - High colour saturation and hiding power - II. Multi-pigment preparations for tailor-made shades - Additive-free finish technology developed En ligne : https://drive.google.com/file/d/1nILdEOAd0x7CxNH7fPAIIePylsE8rkkI/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11803 [article]

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