Pigment Manufacturing
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Pigments are colorants that are not soluble in the host material and scatter light and are therefore opaque. Pigments can be organic or man-made and derive from animals, plants, rocks or minerals and metal oxides, like for example titanium oxide.
Top picks for pigment processing
Dryer for pigments and hydroxides
Achieve precision drying of complex suspensions and pastes into uniform powders, optimizi...
Basket mill for paint and varnish production
Achieve optimal particle size and product consistency with this advanced bask...
Explosion-proof production disperser for paint manufacturing
Ensure safe and efficient dispersion in volatile environmen...
Ultrafine classifier for toner and pigments
Achieve unparalleled precision in classifying fine powders essential for high-...
Stories about pigment
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Generally, pigments and paints are not bound chemically to the covered surface, water-soluble dies react with fibers in a mordant bath. Apart from colored, decorative paints, white and black pigments have high importance. White titanium dioxide plays an important role in the painting industry, due to its stability, high covering effect, and UV-light absorbing property. Approximately 4.6 million tons of TiO2 pigment are produced annually worldwide, and its use continues to rise. On the other end of paints, carbon black is essential as a toner of the laser printer and filler in tires and other plastics, also due to its stability and UV-light absorbing capability.
Pigment manufacturing process
Natural sources of paint lost their importance. Lead oxide pigment dispersed in oil was widely used as primer paint, due to its excellent anticorrosive feature. Since heavy metal lead is poisonous, this red paint is nowadays forbidden. Indigo was extracted from plants cultivated in Asia, nowadays the blue die for denim cloth coloration is synthesized almost exclusively by the chemical industry. The coloring materials were solved in organic solvents, benzene, toluene, xilols, turpentine, and nitro thinner. All these solvents pollute the environment, and some of them are carcinogens. Nowadays water-based products are common; however most part of paints are not water-soluble. In order to avoid segregation, stable dispersion should be formed where the pigments do not sediment.
In order to eliminate solvents, powder coating is used for painting and decorating vehicles and other metal surfaces. Pigments are mixed with polymers, then extruded and milled. Classifier mills are preferable for a narrow particle size distribution
High sheer mixing for powder paints
Powder coatings are a solvent-free painting form where pigment is mixed with a polymer, a carrier material that melts in the painting oven so that the pigments adhere to metal objects. Pigments are micronized to have a smooth surface and become miscible with polymer beads. High shear mixing is necessary to break the force of cohesive powders and form polymer-pigment particles avoiding sedimentation in further processing. The video below shows a high-shear mixer for this purpose with a conical shape that provides a vertical upward movement along the wall.
How dispersion improves paint quality
In emulsion paint, the binding agent is dispersed in water. Dispersion as such an important process that has a big influence on the quality of the final product. Dispersing machines process immiscible materials in a high shear chamber, where sharp edge tools of high-speed rotor reduce the size of the paint particles and disperse them into the oily or water base matrix. A rotor can have paddles as well, to serve as a recirculation pump. The video below shows how at the top of the rotor a vacuum occurs, sucking in the ingredients, liquids, and powders.
Which pigment technology do you need?
Jet mill for toner and pigment industries
Optimize particle size and distribution for high-demand applications with this h...
Ultrafine classifier for toner and pigments
Achieve unparalleled precision in classifying fine powders essential for high-...
Dryer for pigments and hydroxides
Achieve precision drying of complex suspensions and pastes into uniform powders, optimizi...
Ultrafine powder mill for coatings and pigments
Optimize your ultra-fine powder production with this precise grinding and ...
Immersion mill for particle reduction
Achieve streamlined particle size reduction and enhanced mixture homogeneity with imm...
Industrial pan dryer for pharmaceuticals
For heat-sensitive powders and pastes requiring precise moisture levels, this pan ...
Crossflow filtration for microfine to nanoscale suspensions
Optimize your production line with advanced crossflow filtra...
Crossflow filtration with sieve filter for difficult suspensions
Achieve precise separation and recovery in challenging ...
Pressure drum filter for fine-grained products
Achieve exceptional precision in fine particles processing with this pressu...
Industrial basket mill for medium viscosity products
Achieve precise particle size reduction and rapid pigment dispersion...
Explosion-proof basket mill for large scale production
Enhance your production line with an explosion-proof basket mill t...
Efficient grinding and drying mill
Transform your production line with a versatile mill that simultaneously grinds, dries, ...
Particle size reduction air conveying system
Achieve precise particle size reduction and contamination-free processing for...
Horizontal disc bead mill for liquid chemicals
Processing toxic chemicals requires high compliance with safety standards a...
Milling and drying machine for fine powders
When you need to produce ultra-fine powders, the milling and drying process em...
Laboratory scale active freeze dryer
The laboratory-scale active freeze-drying is used for dehydrating high-value products ...
Thin film dryers
Dry dissolved or slurried crystallizing or amorphous products to a pourable powder.
Vertical scraper centrifuges
Vertical Bottom discharge Centrifuges work discontinuously, discharging the solids to the botto...
Pelleting press with overhead drive
Production of certain pelletized products requires working with output products of a pa...
Impact classifier mill for fine grinding of brittle materials
Achieve precise particle size distribution with advanced g...
Energy-efficient impact classifier for superfine grinding
Achieve precise superfine grinding with energy efficiency, per...
Super high shear mixer for nano to micron powders
Achieve high-precision mixing and surface treatment of nano to micron-s...
Powder synthesis reactors for nanometer and micrometer particles
Achieve precise particle control and enhance material p...
Inline high shear mixing unit for low to medium viscosity products
Achieve precise emulsification and size-reduction wi...
Industrial drum vacuum filter for filtration and washing
Efficiently manage filtration, washing, and dewatering tasks wit...
Bead mill for nano-preparation grinding
Achieve precise nano-processing and efficient wet grinding for pharmaceuticals and ...
Milling beads for wet grinding in paint industry
Enhance product uniformity and grinding efficiency with specialized milli...
Explosion-proof production disperser for paint manufacturing
Ensure safe and efficient dispersion in volatile environmen...
Vacuum dissolving system for high-viscosity products
Achieve flawless dispersion of high-viscosity substances under vacuu...
Explosion-proof horizontal bead mill
For manufacturers seeking precise particle sizing, this explosion-proof bead mill ensu...
High-performance production dissolver for large batches
Achieve precise and repeatable dispersion for complex formulation...
Explosion-proof dissolver for high-viscosity products
Optimized for safely processing high-viscosity products, this explo...
Vacuum basket mill for highly viscous products
Achieve precision in fine milling under vacuum to prevent air inclusions in...
Vacuum basket mill for high-viscosity product milling
Achieve refined particle size and smooth texture in your high-visco...
Basket mill with integrated dissolver for high viscosity products
Optimize your production efficiency by combining disp...
Explosion-proof immersion mill for paints and varnishes
Optimize high-performance coatings production with an explosion-p...
Spray drying system for heat sensitive products
For heat-sensitive products requiring precision drying, this spray drying ...
Dual-motion rectangular separator for pulp and paper industry
Optimize your production line with a versatile separation ...
Vertical ring-roll mill for pulverizing minerals
Achieve precise particle size control and efficient material processing w...
Ultra fine bead mill for nanosuspensions
Ensuring the quality, efficiency, and reproducibility of nanosuspensions throughou...
Self-cleaning bead mill for highly viscous materials
To prevent blockages, clogging, and cross-contamination coming from ...
Classifier mill for recovered carbon black
Recovered Carbon Black (rCB) can be recycled back to the tire production chain ...
Industrial liquid filtration system
Systems for the filtration of liquids with suspended solid contents can be challenging ...
Automatic can sealer
If you need to cap paint, glues, and solvents containers and are currently manually placing the lids, yo...
Feeder with flexible wall hopper
The varying properties of dry powder products mean that specialized feeders are required fo...
Side bar filter press
Production of dry cakes is required in a variety of industries and robust, low-cost side bar filtration...
2-way diverter valves for pneumatic conveying
Products conveyed through pneumatic conveyor lines often need to be diverted...
Multi-way diverter valve for pneumatic conveying
Products conveyed through pneumatic conveyor lines often need to be diver...
Dense phase conveyor for normal wearing materials
Dense phase pneumatic conveying is used for powders, granules, and grai...
Dense phase conveyor for powders and granules
Some manufacturing and filling operations require a smaller pneumatic transp...
Wear resistant bends for pneumatic conveying
Bends in pneumatic conveyor lines cause load loss leading to lower flow rates...
Horizontal chemical scraper centrifuge
For slurries difficult to discharge, a scraper can improve process reliability, effi...
Horizontal pharmaceutical scraper centrifuge
For slurries difficult to discharge, a scraper can improve process reliabilit...
Isolator centrifuge
For transferring highly active pharmaceutical ingredients (HAPI) without contamination from the isolator ...
Mobile pilot plant centrifuge
The system is perfectly suited for pilot plants as well as small-quantity productions in the f...
Vertical top discharge centrifuge
Discharge solids vertically upward through manual action, optionally using a filter bag o...
Vertical peeler centrifuge
A vertical peeler centrifuge is used to separate solids, usually to separate fine particles from ...
Pusher centrifuge
Pusher centrifuges are continuously operating filter centrifuges and can have several basket stages dependi...