ATTRITOR GRINDING AND DISPERSING EQUIPMENT by A. Szegvari and M. Yang UNION PROCESS INC. Akron, Ohio As presented April 29, 1999 and updated January, 2019 Seminar on "Dispersion of Pigments and Resins in Fluid Media" KENT STATE UNIVERSITY Department of Rheology Kent, Ohio by Arno Szegvari

The wet grinding and dispersing process defines your end product characteristics. Our solutions include cutting-edge bead mills and three-roll mills, supported by unrivaled process and application expertise, to give you consistent, repeatable quality, every time. Bead mills.

Wetting, grinding, dispersing and stabilizing pigment coats and inks. DISPERSING PROCESS High quality coatings of high brilliance and color strength are characterized by a perfect pigment dispersion, optimal pigment particle size, and long-term stabilization of the dispersed particle in the formulation.

Dispersing additives, which adsorb on the pigment surface, facilitate liquid/solid interfacial interactions and help to replace the air/solid interface by a liquid medium/solid interface. The grinding process can be regarded as a de-flocculation process. In the absence of stabilizing agents, effects such as reduced color strength, decreased ...

Dispex. - the high efficiency dispersing agent. We offer rheology modifiers ( Rheovis ®) defoamers (Foamaster ®, FoamStar ®),wetting agents (Hydropalat ®) and dispersants (Dispex ®) for a broad range of nonwoven applications. Dispex ® is an incredibly efficient polyacrylate dispersant which is used to disperse inorganic materials that ...

By mastering pigment grinding for our own finest quality artists lines at Tri-Art, we are also able to offer a high quality student and kids line, at a very competitive price as well. Wetting and Dispersing Additives (BYK Additives and Instruments).

Material and Formulation. Grinding Resin 6529 was evaluated and benchmarked against Dispersant D, which is a non-OH-functional polymeric type pigment wetting and dispersing agent. All pigment tints made in this study were letdown in formulas based on a waterborne OH-functional acrylic binder, Polyol 6810.

Ultrasonic Dispersing & Grinding Conditions. The quality of paints and coatings relies on the homogenous dispersion of the pigments. Hielscher Ultrasonics supplies effective milling and grinding equipment for paint dispersion, especially for for formulations …

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 by dispersing agents in order to prevent the

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 ...

Most pigments used in inks and coatings, for example, have primary particle size from at least 0.02 [micro]m or 20 nanometers up to 200 nanometers. With the particle size analysis technology available today, we can easily learn that many operators of bead mills are grinding and dispersing their pigments into this range.

A media mill for grinding and dispersing pigments and other particulate matter in a pigment slurry, said media mill comprising: a chamber including a first portion having a diameter, a second portion having a diameter and joined to and in fluid communication with said first portion at a central impact zone between the first and second portions ...

cuses on pigment families and their application in waterborne, solventborne and universal dispersions. The theory behind processing, selection of wetting and dispersing agents, and the differences between co-grinding and single pigment dispersion are discussed. Pigments vs. Dyes – Is Solubility Important?

Polar solvents, such as water, show high surface tension and therefore poor wetting properties for low surface tension substrates, as typical for organic pigments. Thus, additional wetting support is required, through the use of specific wetting agents or pigment dispersing agents, showing strong wetting activity.

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).

Pigment Grinding. I use a high energy planetary ball with with yttria-stabilized zirconia balls to offer very fine grinds and dispersions of pigments with low contamination. Nano-dispersions are possible with some pigments with the use of 0.1mm grinding balls and the most advanced dispersing agents. Contact me for more information and pricing.

The grinding paste is primarily chosen based on its compatibility. Its percentage of the paste should be a low as possible. If special dispersing additives are used, binder-free pigment concentrates of impeccable quality can also be formulated.

Pigment Production - NETZSCH Grinding Dispersing. Pigment Production. The ultra-fine grinding of pigments places high demands on the machine 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.

Toynol® DS-191L/191H Dispersants are specially researched for organic pigment, with properties of reducing viscosity of grinding system and improving color development of millbase. keywords: dispersing organic pigments, yellow iron oxide, polymeric dis

One of the most important steps in the production of pigmented coatings is the homogeneous distribution of solid pigments within the liquid binder solution. If this pigment grinding step is not optimized, a wide variety of defects can occur: Flocculation Gloss reduction Color shift Separation, formation of …

Products & Solutions Dispersing & Homogenizing Wet Grinding De-Aerating Laboratory Machines NETZSCH-Beads ® Laboratory Tests Seminars Webinars Industries Biotechnology Cosmetics / Personal Hygiene Pharmaceuticals

The neuropeptide Pigment-Dispersing Factor (PDF) plays a prominent role in the circadian clock of many insects including honey bees. In the honey bee brain, PDF is expressed in about 15 clock neurons per hemisphere that lie between the central brain and the optic lobes.

Bead mill is a kind of super - fine grinding equipment for wet process, now it is widely used in ink, pigment dispersing and grinding. There are different kinds of bead mills, from the installation form, it can be divided into vertical and horizontal. More.

This paper focuses on pigment families and their application in waterborne, solventborne and universal dispersions. The theory behind processing, selection of wetting and dispersing agents, and the differences between co-grinding …

Selection of wetting and dispersing aids for waterborne systems is discussed, considering pigment loading, flocculation, viscosity stability, colour development and effects on other properties of ...

A new and improved method for making a pigment dispersant system, a method for pigment grinding and a new pigment dispersant system are herein disclosed. The inventive compound and process do not use a resin or the harsh milling process used in current pigment technologies.

Grinding Medias. The materials and sizes of the grinding media of your equipment can be selected according to the different characteristics and requirements of the abrasive materials to achieve various results. For example, larger abrasive media are suitable for grinding larger or denser structures, smaller abrasive media can grind fine ...

Grinding, or dispersing, pigment is a practice critical to a number of industries. In coatings, the dispersion of colored pigments is critical to achieving the desired color, stability and weathering performance properties. The quality of the dispersions also affects the economics of the use of colored pigments.

pigment grinding machine - Know More. Posts Related to pigment grinding ball mills small ones pigment testing method for dispersion with two roll mill, test it is the ideal, 1pigment dispersion ....

Dispersing additives, which adsorb on the pigment surface, facilitate liquid/solid interfacial interactions and help to replace the air/solid interface by a liquid medium/solid interface. The grinding process can be regarded as a de-flocculation process. In the absence of stabilizing agents, effects such as reduced color strength, decreased ...