Industrial colorant are either called pigment or dyes, Plastic Pigments can be further
classifies into organic or inorganic category with colored, white and black
appearance differs as per application. The medium in which they are integrated
is shows soluble properties when mixed with some same solvent, pigment are
crystal by physical properties and can be easily dissolve during in the
process. Thus by physical properties that pigment possesses are different than
that of dyes but both doses the same function: that is coloring the medium. As
far as the chemical properties are concern both the pigments and dyes are same,
the functional application is what makes them different from each other and it
varies industry to industry.
Pigment of different nature may me dissolve in
one medium and partially in other depends on the function of application and
process employed and majorly temperature of the system decides the rate of
solution in a particular process. There are some other properties of pigments
or a pigmented system which decides the area of its application and the
quantity measure to be taken in a system, such as light-fastness, Heat
stability, and tinc-torial strength are often evaluated in a process in which
it is applied.