Application of bead mill in the printing ink industry
Different types of ink used bead mills in different structures
Rotary offset printing inks generally use vertical rod type (5—130 liters) or horizontal disc type bead mills (60 to 500 liters), while the production of ultra-high viscosity sheet-fed inks often uses high energy density cone bead mills or three roll mills.
Inkjet inks (inks and pigment solvent-based inks) generally use high-energy-density pin-type (horizontal or vertical) bead mills and turbo-centrifugal nano-bead mills.
The new bead mill is the main grinding and dispersing equipment in the ink production process. The bead mill is a fully enclosed grinding equipment with automatic feeding, automatic temperature, and pressure control devices, and can carry out continuous production operations.
When the bead mill is running, the rotor agitates the meson (beads) to move at a high speed, and the high-speed running medium and the grinding cavity plays a role of dispersion through impact, friction, and shear. The vertical bead mill is a fully enclosed type, which can continuously grind and disperse granular and non-granular solid materials in liquid.
The structure and characteristics of the bead mill are:
When grinding materials, it will generally grind several times according to the fineness requirements of the final product. The setting pressure of the three roll mill is usually increased one by one to ensure that the wetting and dispersing process of the agglomerated particles is a “gradual” process. So it is more stable and controllable.
The structure and characteristics of the bead mill are:
②The annular groove on the stator can meet the different requirements of the product, and the high-precision special isolation groove can be used for the special viscosity.
③The temperature, pressure, feed pump flow rate of the rotor and stator are automatically displayed, and there are protection devices such as temperature and pressure.
④The grinding efficiency and dispersion degree can be obtained by adjusting the flow rate of the feed pump and the filling amount of the beads.
⑤Due to the use of special and latest technical materials, the grinding area and the isolation area are particularly wear-resistant, and will not affect the hue of the material.
⑥Bead mills usually have safety self-locking and alarm devices, and some faults can be automatically eliminated.
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Source: Franli
This article address : Application of bead mill in the printing ink industry
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