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| 配方类型： |
EMULSIONS |
| 配方说明： |
Dispersion of Wet Ground Mica |
| 配方组成： |
maintaining the vortex during this process. In order to maintain the
to a point approximately midway between the center of the tank and its
side. Restart the disperser and increase speed to obtain optimum
the liquid. Adjust impeller speed and height to form a deep vortex. Add
dispersing speed of about 4500 to 6000 peripheral feet per minute. As a
vortex while adding the pigment it may be necessary to adjust the height
general rule, proper dispersion can be obtained if the impeller blade is
one third to one quarter the diameter of the tank and the blade is
positioned between one third and one and one third diameters above the
tank bottom. During the high speed dispersion phase one or more shallow
vortices are obtained instead of the deep vortex required during the
pigment addition phase. Maintain dispersion speed for 10 to 15 minutes
to obtain a Fineness of Grind reading of 4.5 to 5 NS. This dispersion is
then added to the mill base in the formu |
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