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Invented in the early age 1980's, these DPP pigments are small but
considered as very important group of synthetic pigments. The intense Light
fastness property was gradually developed in these pigments synthetically.
The types of currently present DPP Pigments are:
- Scarlet category
- Red category
- Carmine category
- Shade Orange category
Hybrid pigments are also a type of DPP Pigments. These pigments are
produced by crystallizing Pyrroles with Quinacridones.
Structure of DPP Pigments
Pyrroles have also been crystallized with
quinacridones to produce hybrid pigments (PR N/A). The differences in colors
in different kinds of DPP Pigments are due to the differences in the atom
hanging symmetrically on the both hands of the molecules.
Properties of DPP Pigments
There is a wide range of color shade and opacity available due to DPP
pigments. These pigments are extremely pure and have a nice shade. The color
strength of these pigments are also very good.
These DPP Pigments show very high resistance against light, heat and any
type of change in position of atoms within a molecule of these pigments
fastness. These pigments have also excellent resistant power against
weather. Apart from this, these are very much heat stable and have high
color strength and saturation.
Application of DPP Pigments
DPP Pigments produce large range of colors that
are widely used in various applications. These large range of colors are
possible due to the simple selection of different constituents on the phenyl
rings. These pigments can be converted into soluble form through
derivatisation methods. Thus, these pigments can be applied in the soluble
form. Then, the derivatizing group is removed from the soluble form of these
pigments. After removing the derivatizing group from the solution, the
desired pigments are left there. This method increases the applicability of
these DPP Pigments. DPP Pigments are high performance pigments and are
mostly used for highest quality automotive coating.
Gen Next Developments:-
- A Multilayer CLC system
- Doping of the CLC pigment
- Very High process speeds of 100 ft/min
- Smart Pigments that has controlled shape
- Ultrathin CLC pigments