Waterborne Pigment Grinding Mill
- صفحه اصلی
- Waterborne Pigment Grinding Mill
grinding of pigment. Generally, high viscosity dispersions are not easy to grind using a lab-scale re-circulating bead mill. There are numerous factors that can potentially result in changes in the starting point formulations. It is therefore crucial to assess any variations in the pigment loading occurring during milling for extended time periods.
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This invention relates to water-dispersible phthalocyanine pigment formulations that are mixtures of (a) about 60 to about 99.5% by weight, based on the total amount of components (a) and (b), of a conditioned metal phthalocyanine pigment, and (b) about 0.5 to about 40% by weight, based on the total amount of components (a) and (b), of a water-insoluble sulfonated phthalocyanine …
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Very efficient wetting and dispersing additive for waterborne pigment concentrates and direct grinds; suitable for low-VOC and Eco-Label-compliant paints; Effective grinding of inorganic pigments and fillers; Leads to outstanding pigment concentrate acceptance with minimized rub-out values and high color strength
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ide. In addition to good pigment wetting, TEGO® Dispers 685 increases gloss. The product is equally suited for grinding in triple roll mills and bead mills. Pigment dispersion Organic pigments Carbon blacks Inorganic pigments Waterborne binder-containing pigment dispersion TEGO® Dispers 760 W TEGO® Dispers 765 W TEGO® Dispers 760 W
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States of pigment dispersion affects the various ink properties. The degree of dispersion and the interaction between the dispersed pigment particles are dependent on the mill base formulation.
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Pigment Production. The ultra-fine grinding of pigments places high demands on the machine technology to be employed. The finest, absolutely grit-free granulation, low-residue processing with minimal contamination, as well as fast, thorough cleaning when switching products are the minimum requirements. Technical Article from NETZSCH published ...
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This paper presents a waterborne paint formulation process. The required main ingredient was an alkydic resin with 51.3% w/w non-volatile-matter …
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Thermo Hog 16.0. The Mini Hog is a ride-on solution for pavement marking available in thermoplastic, waterborne, and tape models. Attach up to three Triple Spray Bars for a 12' blasting width! The Grinder Hog uses Computer-Controlled Profiling (CCP) for grinding, grooving, sinusoidal rumble strips, and plunge cuts as well as Pollution Control ...
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PIGMENT DISPERSANTS FOR IMPROVING COLOR DEVELOPMENT IN WATERBORNE ACRYLIC AND STYRENE/ ACRYLIC PAINTS Elizabeth H. Lowe Ethox Chemicals, LLC, 1801 Perimeter Road, Greenville, SC 29605 blowe@ethox, 864-227-1620 Ease of use of a paint is of great importance to the consumer. Pigment dispersion stability on the shelf and in aqueous
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Pigment dispersion can be divided into three overlapping steps: Wetting—for good wetting, the dispersant must have a lower surface tension than that of the pigment. This enables the dispersant to displace air and water from pigment surfaces and penetrate pores, gaps, and channels between particles and adsorb onto them.
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Pigment wetting: The air and moisture covering the pigment is replaced by the resin solution. The solid/gas interface (pigment/air) is transformed into a solid/liquid interface (pigment/resin solution). Grinding stage: By high shear forces the pigment agglomerates are broken up into smaller units, preferable primary particles. Stabilization: The pigment dispersion is stabilized …
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Ardo Verffabriek is the specialist in dispersing pigments with the use of pearl mills, turbo mills, dissolvers and three roll mills. We manufacture pigment dispersions for the coating, ink and plastic industry e.g. Waterborne pigment pastes. Universal colour pastes. Alkyd based pigment pastes. Acryl based pigment pastes.
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pigment dispersions with XM-2311 can be formulated at a high solids. Picture 1 shows a pigment dispersion prepared according to Table 4 with a pigment to binder ratio of 1/1 using a Irgazin DPP BO red pigment and a grinding time of 16 hours on a pebble mill and let down with a PUD dispersion. The same pigment dispersion diluted
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Saint-Gobain ZirPro has been supplying high-quality ceramic media to the pigments, dyes and dispersions industries for more than 40 years. ZirPro offers a market-leading range of media (ER120, Rimax®, Zirmil® Ce and Zirmil® Y) to meet the exacting demands of grinding and dispersing processes.Selection of the optimum bead (density and size) is critical, as color …
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If this is a co-grind (grinding all pigments together), calculate for each individual pigment and add the amount of wetting and dispersing additive accordingly. One of our customers is not happy with the dispersibility of one of our organic phtalocyanine pigment during grinding to make a waterborne paste.
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Waterborne coatings use water as a solvent to disperse a resin, thus making these coatings eco-friendly and easy to apply. In most cases, waterborne coatings contain up to 80% water with small quantities of other solvents, such as glycol ethers.
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The milling chamber of the bead mill has an empty volume of 50 mL and it needed to be filled between approximately 65% (32.5 mL) and 85% (42.5 mL) with grinding beads. The size of the zirconium oxide beads used as grinding media was approximately 1–1.25 mm and the bead loading was maintained between 30–35 mL.
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The pigment was further dispersed using bead mill Mini Zeta-03-E NETZSCH Grinding & Dispersing Machine (Germany) at 1800 r/m for 2 h to obtain finely dispersed phthalocyanine green G pigment with average particle size of 118 d nm. The dispersion was filtered through 0.5 μm pore-filtering sieve to remove broken pieces of glass beads.
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For use in waterborne coatings, anionic charged and non-ionic dispersing agents can be considered. Excellent wetting and dispersion performance in mill-bases for dispersion paints can be achieved using a combination of sodium- or ammonium-polycarboxylate and polymeric non-ionic surfactant additive.
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A waterborne pigmented liquid coating composition and method of making and using same which is substantially devoid of any surfactant dispersing …
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Pigment distribution in waterborne coating C. As well as resulting in lower flocculation, pigment 2 yields a higher absolute scattering power. ... The influence of the organic surface treatment on the viscosity of the mill base after grinding in the dissolver and of the ready-to-use coating will be considered first.
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Composition of the pigment paste made up for subsequent testing of dispersion quality. After grinding, clear lacquers are pigmented with the prepared tinters and applied onto clean glass plates. The ratio of the pigment to binder solids should be as follows: Inorganic pigments = 20-30%. Organic pigments = 10-15%. Carbon black = 5-10%. 3).
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a novel waterborne pigment grinding resin, resin 6529, was developed in an attempt to achieve the dual goals of making a grinding resin that can (i) provide pigment grinding capability approaching that of a typical polymeric pigment dispersing additive, and (ii) improve the resistance properties of high-grade pigmented coatings, which are …
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Optimization of grinding parameters in the. The pigment paste was then diluted with water to give a final viscosity of 105 KU/23 °C or 120 KU/23 °C. The batch weight was measured in order to calculate the mass of the pigment preparation to be ground and in order to determine the required grinding energy.
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Crosslinker for Waterborne ... recommended to allow the pigment paste to equilibrate over typical grinding duration in manufacturing to mimic realistic conditions. CoatOSil MP 200 silane can also be added at any step in the letdown stage before or after binder ... Mill Base Ammonia (25% aq.sol.) 0.5 0.5 Dispersant4.2 4.2 10 mins TiO2185 185 ...
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where h is the depth (or height) of penetration during the time t, - is the surface tension of the wetting liquid, - its viscosity, - the wetting angle, r - mean radius of capillaries, C - structural coefficient, associated with parameters of the porous structure, W - energy (heat) of wetting.. The wetting step of dispersing processes can be intensified by the use of wetting agents and/or ...
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The grinding equipment (dissolvers, grinding mills, sand mills…) introduce mechanical energy in the system. This shear forces energy breaks and separates the pigment agglomerates in smaller particles. This new created surface is wetted by the grinding medium liquid.
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dia mill, which produces significantly more shear, such as horizontal, vertical and basket mills. In order to disperse the pigment to a nano level, the use of 0.3-0.5 nm grinding media is recommended. Stabilization Due to the increased surface area of the solid particles dur-ing the deagglomeration/grinding stage, the pigments that are
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US3329348A US320432A US32043263A US3329348A US 3329348 A US3329348 A US 3329348A US 320432 A US320432 A US 320432A US 32043263 A US32043263 A US 32043263A US 3329348 A US3329348 A US 3329348A Authority US United States Prior art keywords grinding vessel mass agitating agitator Prior art date Legal status (The …
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