Looking into the red/orange colour space - a new inorganic pigment class to fill the gap

 
While organic pigments are well-known for its brilliance and tinting strength, inorganic pigments are considered to be very stable and hiding, but featuring a lower chroma. Especially in the orange/red area there is a remarkable gap in the colour space in between organic and inorganic single pigment solutions as well as the toxic Molybdate Reds. Some efforts have been done in recent years to close this gap, e.g. more chromatic iron oxide grades or TinZincRutile Pigments (PO 82 / PY 216), however the gap is still there. This presentation will give an insight into our developments on a new, not yet existing colour index, based on ZnMn-chemistry, allowing for a wide range of orange/red colour solutions with its specific application properties.