L'innovation dans tous les domaines
Baisse
Piloter l’avenir de la technologie jet d’encre grâce à une expertise scientifique approfondie.
L'innovation soutenue par la science
Notre approche s'appuie sur une expertise scientifique approfondie. Nous utilisons une chimie avancée et un processus de R&D rigoureux pour concevoir des solutions d'encre sur mesure offrant des performances réelles.
La science derrière votre succès
Formulation d'encre personnalisée
Nous allons au-delà des produits standard. Nos chimistes collaborent avec vous pour concevoir des formules d'encre sur mesure, parfaitement adaptées à vos supports, têtes d'impression et objectifs de performance.
Tests de compatibilité rigoureux
L'efficacité d'une encre dépend de sa performance sur le support choisi. Nous effectuons des tests approfondis sur une large gamme de supports afin de garantir une adhérence parfaite, des couleurs éclatantes et une durabilité à long terme.
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Fiabilité basée sur les données
Grâce à des outils avancés, notamment nos systèmes DropWatcher internes, nous analysons chaque formulation pour déterminer des paramètres clés tels que la viscosité, la tension superficielle et la stabilité du jet. Cette approche basée sur les données garantit des performances constantes et fiables pour chaque lot.
Recherche et développement de pointe
Les scientifiques, ingénieurs et développeurs produits de Vera Inkjet relèvent avec brio le défi de formuler et de concevoir des fluides et des encres pour jet d'encre, destinés à des applications existantes et évolutives. L'ingénierie et le développement d'encres et de fluides jet d'encre personnalisés se situent à l'interface de la dynamique des fluides, de la physique, de la chimie, de l'ingénierie, etc.
et la science des matériaux.
Notre expertise s'étend de la formulation d'encres jet d'encre pour une tête d'impression et un substrat spécifiques au développement de fluides fonctionnels. Nos recherches nous ont permis d'approfondir notre compréhension des formulations d'encres et de fluides jet d'encre et de leurs composants, tels que les tensioactifs, les humectants, les dispersants, les pigments et les liants. Nous étudions tous les aspects du volume et des propriétés dynamiques des encres et des fluides sous cisaillement faible et élevé, haute fréquence, forte élongation et impact élevé.
Notre équipement
Notre laboratoire de R&D est équipé d'instruments de classe mondiale pour étudier tous les aspects d'une encre/fluide à jet d'encre et de ses composants : viscosité à faible et haut cisaillement, tension superficielle statique et dynamique, conductivité, pH, densité, stabilité et performances de jet.
Observateur de gouttes
Au cœur du laboratoire de recherche de Vera se trouve un observateur de gouttes ImageXpert permettant d'observer les performances de jet. Cet outil essentiel permet aux experts en jet d'encre d'étudier le volume, la forme et la vitesse des gouttes, ainsi que de nombreux autres paramètres de jet pour différentes têtes d'impression, fluides et circuits électroniques d'entraînement. L'imagerie haute précision est réalisée à une résolution d'un demi-micron, permettant de visualiser et d'analyser facilement les gouttes inférieures à 1 pL.
Fluidicam RHEO
Si la formation des gouttes et leur projection depuis la buse de la tête d'impression sont importantes, le flux d'encre à travers les canaux de la tête d'impression et la chambre d'encre est tout aussi crucial pour des performances optimales. Grâce aux débits élevés du système microfluidique, les fluides sont soumis à des taux de cisaillement élevés, que la Fluidicam RHEO permet d'étudier avec précision. Elle associe les principes microfluidiques à l'acquisition optique sous des taux de cisaillement élevés allant jusqu'à 105 s-1 dans une plage de températures de 4 à 80 °C, pour produire des profils de viscosité de cisaillement extrêmement précis.
NANOPHOX
Il s'agit d'un outil indispensable au laboratoire de Vera, car la rhéologie de l'encre et du polymère dispersant, ainsi que l'opacité, le pouvoir colorant, la brillance, la durabilité du film et la fonctionnalité de la dispersion pigmentaire dépendent de la distribution granulométrique. NANOPHOX utilise la diffusion dynamique de la lumière et permet d'analyser des suspensions hautement concentrées dont la granulométrie varie de 0,5 nm à 10 000 nm, dans une plage de températures comprise entre 0 et 90 °C. La distribution granulométrique, la polydispersité et la stabilité des suspensions peuvent être facilement obtenues.
Broyeur à billes Dispermat
Afin de rester à la pointe de la recherche en jet d'encre, le développement de dispersants et de méthodes internes de dispersion des pigments est une priorité chez Vera. Le broyeur à billes Dispermat permet d'atteindre des vitesses de broyage allant jusqu'à 20 000 tr/min. Plusieurs paramètres sont étudiés, tels que le rapport pigment/vecteur, le type et la taille des billes, le temps de broyage et la vitesse de rotation, afin d'obtenir une dispersion présentant une granulométrie et une rhéologie optimales, stables dans le véhicule d'encre.
Tensiomètre SITA
La formation des gouttes et le mouillage étant largement contrôlés par la tension superficielle, respectivement dynamique et statique, des mesures très précises de la tension superficielle sont nécessaires pour optimiser le type et la quantité de tensioactif utilisé dans les encres. Le tensiomètre SITA utilise la méthode de la pression de bulle avec une durée de vie de bulle comprise entre 15 ms et 20 s pour des mesures précises et rapides.
Spectrophotomètre
La recherche sur les encres jet d'encre étant un domaine très diversifié, il est naturel qu'elle nécessite une mesure précise des couleurs. Grâce au spectrophotomètre X-Rite, la couleur et l'opacité peuvent être mesurées efficacement pour des tailles de patchs aussi petites que 7 × 7 mm. Outre les instruments mentionnés ci-dessus, le laboratoire de Vera est équipé de viscosimètres Brookfield rotatifs et vibratoires pour les modes à faible cisaillement, de diverses imprimantes DTG et graphiques, d'appareils de séchage et d'étirage, ainsi que d'outils pour étudier le vieillissement et le gel de l'encre.