Is Dosing Good Enough, Or Do I Need A Blender? Dosing can be
described as the introduction of a specific material ingredient,
like color concentrate, to an otherwise independent flow of
material, into the process. One standard example of dosing is a
simple feeding unit on the throat of a process machine, metering
color concentrate or liquid color into a flow of virgin
material, supplied from a hopper above the throat. As the virgin
flows to the process, colorant is metered into it. Other
additives or even regrind can be metered as well. Blending, on
the other hand, controls ALL of the ingredients flowing into the
machine throat, not just the dosed additive. In fact, blenders
are actually made up of multiple dosing units, some coarse and
some fine, working in conjunction with each other by time or
weight to create the precision introduction of all materials to
the process. In addition, a blender typically includes a mixing
section so that all of the metered ingredients are mixed
thoroughly to assure a homogeno