The dispersion of Phthalocyanine Pigments proves to be a continuous challenge even though it is in demand for various industrial purposes. The key to understanding the challenges lie in applications and polymer architecture. Whether Phthalocyanine Blue 15.0 or Phthalocyanine Green 7 or Phthalocyanine Blue 15.3 are used, being aware of the problems is mandatory.
Vipul Organics Limited, is a prominent international player in the organic pigment market. In this informative contribution, the team tries to surmount/explain challenges related to Phthalocyanine Pigments applications. With years of knowledge and regular preparations for the industries related to coating, printing inks and master batches they have developed several high performing pigments.
Rheological and leaching problems
While considering and dealing with dispersion, rheology behavior often leads to lesser pigment loads. Even the use of a synergist is problematic in nature if it impacts rheology. When an application reaches the ultimate stage leaching might occur. This is common to solvent based and high solid applications. There is a need to apply dispersing agents which require better polymerization techniques. Currently the trending technique ensures that free radical polymerization enables regulation of the polymer architecture. This is the only way dispersing agent efficiency is delivered. Then there is no need for a separate polymer synergist to stop pigment bleeding. Currently, there is a demand for processes for Phthalocyanine Pigments production which is creating new opportunities in the global market. The usage of Phthalocyanine Blue 15.1 and Phthalocyanine Blue 15.4 are considered standard pigments at least in the packaging sector. Hence, these derivatives and their applications need to match polymer architecture and eliminate common problems.
Characteristic structure of Phthalocyanine Pigments
| Phthalocyanine Blue 15.0
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Phthalocyanine Blue 15.1
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Phthalocyanine Blue 15.3
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Phthalocyanine Blue 15.4
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Phthalocyanine Green 7
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| Transparent | Bright blue red color | Bright green with a blue tinge | A definite red color tone | Pigment is a combination of various isomers |
| Good coloring strength | It is treated to avoid flocculation and unwanted particle clumping | It has highly resistant properties | It is used in all liquid ink applications | Used in acrylic paints and varied oils |
| Can be used for printing inks | Best used as liquid ink | Inorganic acid radical is used to make this pigment | ||
| Resistant to acids, alkalis, soaps, oil and wax | It is processed in cyan | Stability of this pigment finds usage in inks, coatings and plastic sectors | ||
| It is not stable in solvents |
Phthalocyanines – important building blocks
Due to the fastness, stability, high resistance to various materials Phthalocyanines are in high demand across the world. As successful components, the behavior of blue and green pigments are crucial to applications across industries. They are traditional colorants and have an inherent potential to enhance the purpose of applications. They can be made only in facilities that have an advanced infrastructure and lab testing units. An expert team that understands challenges related to polymer architecture meets demands of global customers.
Vipul Organics Limited, based in Mumbai, India regularly researches on improving the basic usage of the applications of Phthalocyanines and makes them interactive in the right perspective.